initial commit

.gitignore

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+node_modules
+.DS_Store

.jshintignore

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+node_modules
+clientapp/libraries
+clientapp/modules
+public

.jshintrc

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+{
+    "asi": false,
+    "expr": true,
+    "loopfunc": true,
+    "curly": false,
+    "evil": true,
+    "white": true,
+    "undef": true,
+    "browser": true,
+    "es5": true,
+    "predef": [
+        "$",
+        "me",
+        "confirm",
+        "alert",
+        "require",
+        "__dirname",
+        "process",
+        "exports",
+        "Buffer",
+        "module"
+    ]
+}

README.md

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+# otalk webrtc capable xmpp, in the browser 
+

clientapp/app/app.js

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+/*global app*/
+var Backbone = require('backbone'),
+    MeModel = require('models/me'),
+    MainView = require('views/main'),
+    Conversatio = require('conversat.io'),
+    SoundEffectManager = require('sound-effect-manager'),
+    cookies = require('cookie-getter'),
+    tracking = require('helpers/tracking'),
+    Router = require('router');
+
+
+module.exports = {
+    launch: function () {
+        window.app = this;
+        window.me = new MeModel();
+
+        // if we're logged in we'll have a cookie
+        // called "user" to read
+        var accessToken = cookies('accessToken');
+
+        this.view = new MainView({
+            model: me,
+            el: document.body
+        }).render();
+
+        // init our api
+        this.api = window.api = new Conversatio({
+            token: accessToken,
+            url: 'http://localhost:3008',
+            localVideoEl: 'localVideo',
+            autoRemoveVideos: false,
+            log: true
+        });
+
+        this.api.on('user', function (user) {
+            me.set(user);
+            tracking.identify(me);
+        });
+
+        // when it's ready set a state flag
+        this.api.on('readyToCall', function () {
+            tracking.track('readyToCall');
+            me.readyToCall = true;
+        });
+
+        // handle cases where password is required
+        this.api.on('passwordRequired', function () {
+            me.enterPasswordDialog = true;
+        });
+
+        // handle locking/unlocking
+        this.api.on('locked', function (key) {
+            me.roomKey = key;
+        });
+        this.api.on('unlocked', function () {
+            me.roomKey = '';
+        });
+
+        new Router();
+        app.history = Backbone.history;
+        // we have what we need, we can now start our router and show the appropriate page
+        app.history.start({pushState: true, root: '/'});
+
+        // play some sounds when people come and go
+        app.sounds = new SoundEffectManager();
+        app.sounds.loadFile('/online.mp3', 'online');
+        app.sounds.loadFile('/offline.mp3', 'offline');
+
+        tracking.track('webAppLoaded');
+    },
+    navigate: function (page) {
+        var url = (page.charAt(0) === '/') ? page.slice(1) : page;
+        app.history.navigate(url, true);
+    },
+    renderPage: function (view, animation) {
+        var container = $('#pages');
+
+        if (app.currentPage) {
+            app.currentPage.hide(animation);
+        }
+        // we call render, but if animation is none, we want to tell the view
+        // to start with the active class already before appending to DOM.
+        container.append(view.render(animation === 'none').el);
+        view.show(animation);
+    },
+    saveRoomDescriptions: function (details) {
+        me.roomKey = details.key;
+        me.roomIsReserved = details.reserved;
+    },
+    join: function (name) {
+        app.api.joinRoom(name, function (err, roomInfo) {
+            if (!err) app.saveRoomDescriptions(roomInfo);
+        });
+    },
+    login: function () {
+        window.location = '/auth?next=' + window.location.href;
+        return false;
+    }
+};

clientapp/app/helpers/getOrCall.js

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+// get a property that's a function or direct property
+module.exports = function (obj, propName) {
+    if (obj[propName] instanceof Function) {
+        return obj[propName]();
+    } else {
+        return obj[propName] || '';
+    }
+};

clientapp/app/helpers/intercom.js

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+module.exports = function (me) {
+    window.intercomSettings = {
+        email: me.email,
+        created_at: Math.floor(me.created / 1000),
+        name: me.fullName,
+        user_id: me.id,
+        widget: {
+            activator: '#Intercom',
+            use_counter: true
+        },
+        app_id: "1qnjz20f"
+    };
+    $.getScript("https://api.intercom.io/api/js/library.js");
+};

clientapp/app/helpers/shippyAd.js

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+// returns an ad message each time its called
+module.exports = function () {
+    var messages = [
+        'Have more fun, get more done with your team. And Bang is currently in free private beta.',
+        'And Bang is simple and powerful tasks and chat for teams. Join the free private beta now.',
+        'Create a culture of shipping, one rocket at a time. And Bang is free while in private beta.',
+        'An API for what\'s important right now. And Bang is free while in private beta.'
+    ];
+    return messages[Math.floor(Math.random() * messages.length)];
+};

clientapp/app/helpers/tracking.js

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+// Module for tracking user events with mix panel analytics.
+/*global mixpanel*/
+var initIntercom = require('helpers/intercom'),
+    hostname = window.location.hostname,
+    isLive = (hostname === 'conversat.io' || hostname === 'beta.conversat.io');
+
+// Identifies the user with the provided unique id.
+exports.identify = function (me) {
+    if (isLive && me && me.authed) {
+        mixpanel.identify(me.id);
+        mixpanel.name_tag(me.username);
+        mixpanel.people.set({
+            $email: me.email,
+            $first_name: me.firstName,
+            $last_name: me.lastName
+        });
+        mixpanel.people.increment('web app opened');
+
+        // init intercom
+        initIntercom(me);
+    }
+};
+
+// Logs the given action with the given data.
+// action: A string representing the action to be logged.
+// dict: A dictionary with additional action information.
+exports.track = function (action, dict, cb) {
+    // allow the dict parameter to be omitted.
+    if (isLive) {
+        mixpanel.track(action, dict || {}, cb);
+    }
+};

clientapp/app/models/me.js

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+var StrictModel = require('strictmodel');
+
+
+module.exports = StrictModel.Model.extend({
+    props: {
+        id: 'string',
+        firstName: 'string',
+        lastName: 'string',
+        username: 'string',
+        email: 'string',
+        smallPicUrl: '/robot.png'
+    },
+    session: {
+        readyToCall: ['boolean', true, false],
+        currentRoom: 'string',
+        muted: ['boolean', true, false],
+        paused: ['boolean', true, false],
+        sharingScreen: ['boolean', true, false],
+        createdRoom: ['boolean', true, false],
+        gameActive: ['boolean', true, false],
+        enterPasswordDialog: ['boolean', true, false],
+        setPasswordDialog: ['boolean', true, false],
+        roomKey: ['string', true, ''],
+        roomIsReserved: ['boolean', true, false]
+    },
+    url: '/me',
+    derived: {
+        name: {
+            deps: ['firstName', 'lastName'],
+            fn: function () {
+                return this.firstName ? (this.firstName + ' ' + this.lastName) : '';
+            }
+        },
+        authed: {
+            deps: ['firstName'],
+            fn: function () {
+                return !!this.firstName;
+            }
+        },
+        roomLocked: {
+            deps: ['roomKey'],
+            fn: function () {
+                return !!this.roomKey;
+            }
+        }
+    }
+});

clientapp/app/pages/base.js

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+/*global app*/
+var BaseView = require('strictview'),
+    getOrCall = require('helpers/getOrCall');
+
+
+module.exports = BaseView.extend({
+    show: function (animation) {
+        $('body').scrollTop(0);
+        // set the class so it comes into view
+        //this.$el.addClass('active');
+        // store reference to current page
+        app.currentPage = this;
+        // set the document title
+        document.title = getOrCall(this, 'title') + ' • conversat.io';
+        // trigger an event to the page model in case we want to respond
+        this.trigger('pageloaded');
+        return this;
+    },
+    hide: function () {
+        var self = this;
+        // tell the model we're bailing
+        this.trigger('pageunloaded');
+        // unbind all events bound for this view
+        this.remove();
+        return this;
+    }
+});

clientapp/app/pages/create.js

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+/*global app*/
+var BasePage = require('pages/base'),
+    templates = require('templates'),
+    tracking = require('helpers/tracking'),
+    slugger = require('slugger');
+
+
+module.exports = BasePage.extend({
+    template: templates.pages.create,
+    events: {
+        'submit #createRoom': 'handleFormSubmit'
+    },
+    initialize: function (spec) {
+        this.url = spec.url;
+    },
+    render: function () {
+        this.basicRender();
+        this.$el.load(this.url);
+        return this;
+    },
+    handleFormSubmit: function () {
+        var input = this.$('#sessionInput'),
+            name = slugger(input.val());
+        app.api.createRoom(name, function (err, description) {
+            if (err) {
+                $.showMessage('That room is taken. Please pick another name.');
+                input.val('').focus();
+            } else {
+                me.createdRoom = true;
+                app.navigate(description.name);
+                tracking.track('roomCreated', {
+                    name: description.name
+                });
+            }
+        });
+        return false;
+    }
+});

clientapp/app/pages/talk.js

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+/*global app, ui*/
+var BasePage = require('pages/base'),
+    templates = require('templates'),
+    tracking = require('helpers/tracking'),
+    _ = require('underscore'),
+    getFluidGridFunction = require('fluidGrid');
+
+
+module.exports = BasePage.extend({
+    template: templates.pages.talk,
+    events: {
+        'click video': 'handleVideoClick',
+        'dblclick video': 'handleVideoDoubleClick',
+        'click #shareScreen': 'handleScreenShareClick',
+        'click #muteMicrophone': 'handleMuteClick',
+        'click #pauseVideo': 'handlePauseClick',
+        'click .lock': 'handleLockClick',
+        'click .unlock': 'handleUnlockClick'
+    },
+    classBindings: {
+        muted: '#muteMicrophone',
+        sharingScreen: '#shareScreen',
+        paused: '#pauseVideo',
+        gameActive: '#game',
+        roomLocked: '.lockControls',
+        roomIsReserved: ''
+    },
+    contentBindings: {
+        currentRoom: '.roomName',
+        roomKey: '#roomKey'
+    },
+    initialize: function () {
+        var self = this;
+        this.shuffle = getFluidGridFunction('#remotes >');
+        app.api.on('readyToCall', _.bind(this.handleReadyToCall, this));
+        app.api.on('videoAdded', _.bind(this.handleVideoAdded, this));
+        app.api.on('videoRemoved', _.bind(this.handleVideoRemoved, this));
+
+        // recalculate positions on resize
+        $(window).on('resize', _.bind(this.shuffle, this, ''));
+        $(window).on('resize', _.debounce(_.bind(this.resetGame, this), 500));
+
+        // sneaky easter egg, play game if you hit '&' while talking
+        $(document).on('keydown', function (e) {
+            if (e.which === 55) self.startGame(true);
+        });
+
+        // for layout testing on localhost
+        if (window.location.hostname === 'localhost') this.enableTestMode();
+    },
+    render: function () {
+        $('body').addClass('active');
+        this.basicRender();
+        this.start();
+        return this;
+    },
+    handleVideoClick: function (e) {
+        this.$('video').removeClass('focused');
+        $(e.target).addClass('focused');
+        this.shuffle(e.target);
+    },
+    handleVideoDoubleClick: function (e) {
+        e.preventDefault();
+        var videoEl = $(e.target)[0];
+        if (videoEl.webkitEnterFullScreen) {
+            videoEl.webkitEnterFullScreen();
+            tracking.track('goingFullscreen', {browser: 'webkit'});
+        } else if (videoEl.mozRequestFullScreen) {
+            videoEl.mozRequestFullScreen();
+            tracking.track('goingFullscreen', {browser: 'mozilla'});
+        }
+    },
+    handleScreenShareClick: function () {
+        if (me.sharingScreen) {
+            me.sharingScreen = false;
+            app.api.stopScreenShare();
+        } else {
+            me.sharingScreen = true;
+            app.api.shareScreen();
+        }
+        return false;
+    },
+    handleMuteClick: function () {
+        if (me.muted) {
+            me.muted = false;
+            app.api.unmute();
+            tracking.track('unmuting');
+        } else {
+            me.muted = true;
+            app.api.mute();
+            tracking.track('muting');
+        }
+        return false;
+    },
+    handlePauseClick: function () {
+        if (me.paused) {
+            me.paused = false;
+            app.api.resume();
+            tracking.track('resuming');
+        } else {
+            me.paused = true;
+            app.api.pause();
+            tracking.track('pausing');
+        }
+        return false;
+    },
+    start: function () {
+        app.api.startLocalVideo(this.$('#localVideo')[0]);
+    },
+    startGame: function (force) {
+        if (!me.passwordDialog && !this.$('#remotes video').length || force) {
+            me.gameActive = true;
+            if (force) {
+                this.$('#instructions').hide();
+            } else {
+                this.$('#instructions').show();
+            }
+            $.getScript('/Box2d.min.js', function () {
+                $.getScript('/out.js');
+            });
+        }
+    },
+    hideGame: function () {
+        if (me.gameActive) {
+            me.gameActive = false;
+            this.$('canvas').replaceWith(this.$('canvas').clone());
+            this.$('#instructions').hide();
+        }
+    },
+    resetGame: function () {
+        this.hideGame();
+        this.startGame();
+    },
+    handleReadyToCall: function () {
+        // we only want to call join if we didn't just create/join the room
+        if (!me.createdRoom) {
+            app.join(me.currentRoom);
+        }
+        // wait a sec, then start the game
+        _.delay(_.bind(this.startGame, this), 1000);
+    },
+    handleVideoAdded: function (el, peer) {
+        this.$('#remotes').append(el);
+        this.shuffle();
+        app.sounds.play('online');
+        this.hideGame();
+        if (peer) {
+            tracking.track('videoConnected', {
+                loggedIn: me.authed,
+                name: me.currentRoom,
+                locked: me.roomLocked,
+                reserved: me.roomIsReserved,
+                type: peer.type,
+                peerId: peer.id
+            });
+        }
+        el.videoStartTime = Date.now();
+    },
+    handleVideoRemoved: function (el, peer) {
+        var conversationLength = Date.now() - el.videoStartTime;
+        $(el).remove();
+        this.shuffle();
+        app.sounds.play('offline');
+        if (peer) {
+            tracking.track('videoDisconnected', {
+                duration: conversationLength,
+                peerId: peer.id,
+                type: peer.type
+            });
+        }
+    },
+    handleLockClick: function () {
+        if (me.authed) {
+            me.setPasswordDialog = true;
+        } else {
+            var dialogEl = $(templates.dialogs.lockingRequiresPaid()),
+                dialog = ui.dialog(dialogEl[0]).modal().show();
+
+            tracking.track('lockDialogShown');
+
+            dialogEl.delegate('button', 'click', function () {
+                switch (this.className) {
+                case "gopro":
+                    tracking.track('goProButtonClicked', {}, function () {
+                        window.location = 'https://apps.andyet.com/conversat.io';
+                    });
+                    break;
+                case "login":
+                    tracking.track('loginButtonClicked', {}, function () {
+                        app.login();
+                    });
+                    break;
+
+                case "cancel":
+                    dialog.hide();
+                    tracking.track('cancelButtonClicked');
+                    break;
+
+                }
+                return false;
+            });
+        }
+        return false;
+    },
+    handleUnlockClick: function () {
+        app.api.unlockRoom(function (err) {
+            if (!err) {
+                tracking.track('roomUnlocked', {
+                    name: me.currentRoom
+                });
+            }
+        });
+        return false;
+    },
+    enableTestMode: function () {
+        var id = 234234,
+            self = this;
+        $(document).keydown(function (e) {
+            if (self !== app.currentPage) return;
+            var src = document.getElementById('localVideo').src,
+                el = document.createElement('video'),
+                container = self.$('#remotes')[0];
+            // +
+            if (e.which === 187) {
+                el.autoplay = true;
+                el.id = ++id;
+                el.src = src;
+                app.api.emit('videoAdded', el);
+            }
+            // -
+            if (e.which === 189) {
+                if (container.firstChild) app.api.emit('videoRemoved', container.firstChild);
+            }
+        });
+    }
+});

clientapp/app/pages/wrapper.js

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+var BasePage = require('pages/base'),
+    templates = require('templates');
+
+
+module.exports = BasePage.extend({
+    template: templates.pages.wrapper,
+    initialize: function (spec) {
+        this.url = spec.url;
+    },
+    render: function () {
+        this.basicRender();
+        this.$el.load(this.url);
+        return this;
+    }
+});

clientapp/app/router.js

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+/*global app*/
+var Backbone = require('backbone'),
+    staticPage = function (url) {
+        return function () {
+            var View = require('pages/wrapper');
+            app.renderPage(new View({
+                url: url
+            }));
+        };
+    };
+
+
+
+module.exports = Backbone.Router.extend({
+    routes: {
+        '': 'create',
+        'help': 'help',
+        'premium': 'premium',
+        ':room': 'talk'
+    },
+
+    // ------- ROUTE HANDLERS ---------
+    create: function () {
+        var View = require('pages/create');
+        app.renderPage(new View({
+            model: me
+        }));
+    },
+    help: staticPage('/partials/help'),
+    premium: staticPage('/partials/help'),
+    talk: function (roomName) {
+        var View = require('pages/talk');
+        me.currentRoom = roomName;
+        app.renderPage(new View({
+            model: me
+        }));
+    }
+});

clientapp/app/views/main.js

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+/*global ui, app*/
+var BasePage = require('pages/base'),
+    templates = require('templates'),
+    shippyAd = require('helpers/shippyAd');
+
+
+module.exports = BasePage.extend({
+    template: templates.layout,
+    classBindings: {
+        authed: ''
+    },
+    contentBindings: {
+        name: '.name'
+    },
+    hrefBindings: {
+        smallPicUrl: 'header .avatar'
+    },
+    events: {
+        'click .logIn': 'handleLoginClick'
+    },
+    render: function () {
+        this.$el.html(this.template());
+        this.startAd();
+        this.handleBindings();
+        me.on('change:enterPasswordDialog', this.handleEnterPasswordDialogChange, this);
+        me.on('change:setPasswordDialog', this.handleSetPasswordDialogChange, this);
+        return this;
+    },
+    startAd: function () {
+        this.$('#ad').html(shippyAd());
+        setTimeout(this.startAd.bind(this), 30000);
+    },
+    handleLoginClick: function () {
+        return false;
+    },
+    handleEnterPasswordDialogChange: function () {
+        var form;
+        function close() {
+            me.enterPasswordDialog = false;
+        }
+        function setMessage(text) {
+            $('.errorMessage', form).text(text);
+        }
+        if (me.enterPasswordDialog) {
+            form = $(templates.dialogs.enterPassword());
+            this.enterPasswordDialog = ui.dialog(form[0]).modal().show();
+            $('button.cancel', form).click(function () {
+                close();
+                app.navigate('');
+            });
+
+            form.submit(function (e) {
+                e.preventDefault();
+                var val = $('input', form).val();
+                if (val) {
+                    setMessage('joining...');
+                    app.api.joinRoom({
+                        name: me.currentRoom,
+                        key: val
+                    }, function (err, roomDescription) {
+                        if (!err) {
+                            app.saveRoomDescriptions(roomDescription);
+                            close();
+                        } else {
+                            setMessage('Incorrect, try again.');
+                        }
+                    });
+                } else {
+                    setMessage('Password required.');
+                }
+                return false;
+            });
+        } else {
+            this.enterPasswordDialog && this.enterPasswordDialog.hide();
+            delete this.enterPasswordDialog;
+        }
+    },
+    handleSetPasswordDialogChange: function () {
+        var form;
+        function close() {
+            me.setPasswordDialog = false;
+        }
+        function setMessage(text) {
+            $('.errorMessage', form).text(text);
+        }
+        if (me.setPasswordDialog) {
+            form = $(templates.dialogs.setPassword());
+            this.setPasswordDialog = ui.dialog(form[0]).modal().show();
+            $('button.cancel', form).click(function () {
+                close();
+            });
+
+            form.submit(function (e) {
+                e.preventDefault();
+                var val = $('input', form).val();
+                if (val) {
+                    setMessage('setting...');
+                    app.api.lockRoom(val, function (err) {
+                        if (!err) {
+                            close();
+                        } else {
+                            setMessage(err);
+                        }
+                    });
+                } else {
+                    setMessage('Password required.');
+                }
+                return false;
+            });
+        } else {
+            this.setPasswordDialog && this.setPasswordDialog.hide();
+            delete this.setPasswordDialog;
+        }
+    }
+});

clientapp/libraries/check-system.js

@@ -0,0 +1,10 @@
+if (!systemRequirements('chrome 26+ or ff 20+')) {
+    function go() {
+        window.location = '/system-requirements';
+    }
+    if (window.location.hostname === 'conversat.io') {
+        mixpanel.track('systemRequirementsNotMet', {}, go);
+    } else {
+        go();
+    }
+};

clientapp/libraries/init.js

@@ -0,0 +1,10 @@
+$('head').prepend([
+    '<link rel="stylesheet" href="/style.css">',
+    '<link rel="stylesheet" href="/fonts.css">',
+    '<link rel="stylesheet" href="/ui.css">',
+    '<meta name="google-site-verification" content="OEAv0Phoo4ZRGpC-GIVt-WpSDQU8wtQerm6s9PToCVY" />'
+].join(''))
+
+$(function () {
+    require('app').launch();
+});

clientapp/libraries/jquery.slidingmessage.js

@@ -0,0 +1,44 @@
+(function($) {
+    $.showMessage = function(message, options){
+        // defaults
+        var settings = jQuery.extend({
+                id: 'sliding_message_box',
+                position: 'bottom',
+                size: '90',
+                backgroundColor: 'rgb(143, 177, 240)',
+                delay: 1500,
+                speed: 500,
+                fontSize: '30px'
+            }, options),
+            el = $('#' + settings.id);
+
+        // generate message div if it doesn't exist
+        if (el.length == 0) {
+            el = $('<div></div>').attr('id', settings.id);
+
+            el.css({
+              '-moz-transition': 'bottom ' + settings.speed + 'ms',
+              '-webkit-transition': 'bottom ' + settings.speed + 'ms',
+              'bottom': '-' + settings.size + 'px',
+              'z-index': '999',
+              'background-color': settings.backgroundColor,
+              'text-align': 'center',
+              'position': 'fixed',
+              'left': '0',
+              'width': '100%',
+              'line-height': settings.size + 'px',
+              'font-size': settings.fontSize,
+            });
+
+            $('body').append(el);
+        }
+
+        setTimeout(function () {
+            el.html(message);
+            el.css('bottom', 0);
+            setTimeout(function () {
+                el.css('bottom', '-' + settings.size + 'px');
+            }, settings.delay);
+        }, 10);
+    }
+})(jQuery);

clientapp/libraries/mixpanel.js

@@ -0,0 +1,13 @@
+(function(c,a){window.mixpanel=a;var b,d,h,e;b=c.createElement("script");
+    b.type="text/javascript";b.async=!0;b.src=("https:"===c.location.protocol?"https:":"http:")+
+    '//cdn.mxpnl.com/libs/mixpanel-2.2.min.js';d=c.getElementsByTagName("script")[0];
+    d.parentNode.insertBefore(b,d);a._i=[];a.init=function(b,c,f){function d(a,b){
+    var c=b.split(".");2==c.length&&(a=a[c[0]],b=c[1]);a[b]=function(){a.push([b].concat(
+    Array.prototype.slice.call(arguments,0)))}}var g=a;"undefined"!==typeof f?g=a[f]=[]:
+    f="mixpanel";g.people=g.people||[];h=['disable','track','track_pageview','track_links',
+    'track_forms','register','register_once','unregister','identify','alias','name_tag',
+    'set_config','people.set','people.increment','people.track_charge','people.append'];
+    for(e=0;e<h.length;e++)d(g,h[e]);a._i.push([b,c,f])};a.__SV=1.2;})(document,window.mixpanel||[]);
+    mixpanel.init("4f9fd79a6827838ce81d84cd70d535cd");
+
+

clientapp/libraries/system-requirements.js

@@ -0,0 +1,84 @@
+(function () {
+var ua = navigator.userAgent,
+    trim = function(string) {
+        return string.replace(/^[\s\uFEFF]+|[\s\uFEFF]+$/g,'')
+    },
+    valid = {
+        ie: 'msie',
+        msie: 'msie',
+        ff: 'firefox',
+        firefox: 'firefox',
+        safari: 'safari',
+        chrome: 'chrome',
+        opera: 'opera'
+    };
+
+// from: http://stackoverflow.com/a/5918791/107722
+function getVersion() {
+    var N = navigator.appName,
+        tem,
+        M = ua.match(/(opera|chrome|safari|firefox|msie)\/?\s*(\.?\d+(\.\d+)*)/i);
+    if (M && (tem= ua.match(/version\/([\.\d]+)/i))!= null) M[2] = tem[1];
+    M = M? [M[1], M[2]]: [N, navigator.appVersion, '-?'];
+    return M;
+}
+
+var ver = getVersion(),
+    name = ver[0].toLowerCase(),
+    version = parseFloat(ver[1]);
+
+function parseBrowserTypes(string) {
+    var arr = string.split('or'),
+        passed = false,
+        i = 0,
+        l = arr.length,
+        split,
+        translatedName,
+        hasPlus;
+
+    for (; i < l; i++) {
+        split = trim(arr[i]).split(' ');
+        translatedName = valid[split[0].toLowerCase()];
+        if (!translatedName) {
+            throw new Error('Unrecognized browser name:' + split[0]);
+        }
+        if (translatedName === name) {
+            hasPlus = split[1].indexOf('+') !== -1;
+            if (hasPlus) {
+                passed = parseFloat(split[1]) <= version;
+            } else {
+                passed = parseFloat(split[1]) === version;
+            }
+        }
+        if (passed) break;
+    }
+
+    return passed;
+}
+
+window.systemRequirements = function (browserString) {
+    var passed = false,
+        failUrl,
+        i = 0,
+        l = arguments.length;
+
+    if (typeof browserString === 'string') {
+        if (!parseBrowserTypes(browserString)) {
+            return false;
+        }
+        // incr starting point for loop
+        i = 1
+    }
+
+    for (; i < l; i++) {
+        if (arguments[i] instanceof Function) {
+            if (!arguments[i]()) {
+                return false;
+            }
+        }
+    }
+
+    return true;
+};
+
+})();

clientapp/libraries/ui.js

@@ -0,0 +1,448 @@
+var ui = {};
+
+;(function(exports){
+/**
+ * Expose `Emitter`.
+ */
+
+exports.Emitter = Emitter;
+
+/**
+ * Initialize a new `Emitter`.
+ * 
+ * @api public
+ */
+
+function Emitter() {
+  this.callbacks = {};
+};
+
+/**
+ * Listen on the given `event` with `fn`.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+Emitter.prototype.on = function(event, fn){
+  (this.callbacks[event] = this.callbacks[event] || [])
+    .push(fn);
+  return this;
+};
+
+/**
+ * Adds an `event` listener that will be invoked a single
+ * time then automatically removed.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+Emitter.prototype.once = function(event, fn){
+  var self = this;
+
+  function on() {
+    self.off(event, on);
+    fn.apply(this, arguments);
+  }
+
+  this.on(event, on);
+  return this;
+};
+
+/**
+ * Remove the given callback for `event` or all
+ * registered callbacks.
+ *
+ * @param {String} event
+ * @param {Function} fn
+ * @return {Emitter}
+ * @api public
+ */
+
+Emitter.prototype.off = function(event, fn){
+  var callbacks = this.callbacks[event];
+  if (!callbacks) return this;
+
+  // remove all handlers
+  if (1 == arguments.length) {
+    delete this.callbacks[event];
+    return this;
+  }
+
+  // remove specific handler
+  var i = callbacks.indexOf(fn);
+  callbacks.splice(i, 1);
+  return this;
+};
+
+/**
+ * Emit `event` with the given args.
+ *
+ * @param {String} event
+ * @param {Mixed} ...
+ * @return {Emitter} 
+ */
+
+Emitter.prototype.emit = function(event){
+  var args = [].slice.call(arguments, 1)
+    , callbacks = this.callbacks[event];
+
+  if (callbacks) {
+    for (var i = 0, len = callbacks.length; i < len; ++i) {
+      callbacks[i].apply(this, args);
+    }
+  }
+
+  return this;
+};
+
+})(ui);
+;(function(exports, html){
+/**
+ * Expose `Overlay`.
+ */
+
+exports.Overlay = Overlay;
+
+/**
+ * Return a new `Overlay` with the given `options`.
+ *
+ * @param {Object} options
+ * @return {Overlay}
+ * @api public
+ */
+
+exports.overlay = function(options){
+  return new Overlay(options);
+};
+
+/**
+ * Initialize a new `Overlay`.
+ *
+ * @param {Object} options
+ * @api public
+ */
+
+function Overlay(options) {
+  ui.Emitter.call(this);
+  var self = this;
+  options = options || {};
+  this.closable = options.closable;
+  this.el = $(html);
+  this.el.appendTo('body');
+  if (this.closable) {
+    this.el.click(function(){
+      self.emit('close');
+      self.hide();
+    });
+  }
+}
+
+/**
+ * Inherit from `Emitter.prototype`.
+ */
+
+Overlay.prototype = new ui.Emitter;
+
+/**
+ * Show the overlay.
+ *
+ * Emits "show" event.
+ *
+ * @return {Overlay} for chaining
+ * @api public
+ */
+
+Overlay.prototype.show = function(){
+  this.emit('show');
+  this.el.removeClass('hide');
+  return this;
+};
+
+/**
+ * Hide the overlay.
+ *
+ * Emits "hide" event.
+ *
+ * @return {Overlay} for chaining
+ * @api public
+ */
+
+Overlay.prototype.hide = function(){
+  var self = this;
+  this.emit('hide');
+  this.el.addClass('hide');
+  setTimeout(function(){
+    self.el.remove();
+  }, 2000);
+  return this;
+};
+
+})(ui, "<div id=\"overlay\" class=\"hide\"></div>");
+;(function(exports, html){
+/**
+ * Active dialog.
+ */
+
+var active;
+
+/**
+ * Expose `Dialog`.
+ */
+
+exports.Dialog = Dialog;
+
+/**
+ * Return a new `Dialog` with the given 
+ * (optional) `title` and `msg`.
+ *
+ * @param {String} title or msg
+ * @param {String} msg
+ * @return {Dialog}
+ * @api public
+ */
+
+exports.dialog = function(title, msg){
+  switch (arguments.length) {
+    case 2:
+      return new Dialog({ title: title, message: msg });
+    case 1:
+      return new Dialog({ message: title });
+  }
+};
+
+/**
+ * Initialize a new `Dialog`.
+ *
+ * Options:
+ *
+ *    - `title` dialog title
+ *    - `message` a message to display
+ *
+ * Emits:
+ *
+ *    - `show` when visible
+ *    - `hide` when hidden
+ *
+ * @param {Object} options
+ * @api public
+ */
+
+function Dialog(options) {
+  ui.Emitter.call(this);
+  options = options || {};
+  this.template = html;
+  this.el = $(this.template);
+  this.render(options);
+  if (active && !active.hiding) active.hide();
+  if (Dialog.effect) this.effect(Dialog.effect);
+  active = this;
+};
+
+/**
+ * Inherit from `Emitter.prototype`.
+ */
+
+Dialog.prototype = new ui.Emitter;
+
+/**
+ * Render with the given `options`.
+ *
+ * @param {Object} options
+ * @api public
+ */
+
+Dialog.prototype.render = function(options){
+  var el = this.el
+    , title = options.title
+    , msg = options.message
+    , self = this;
+
+  el.find('.close').click(function(){
+    self.emit('close');
+    self.hide();
+    return false;
+  });
+
+  el.find('h1').text(title);
+  if (!title) el.find('h1').remove();
+
+  // message
+  if ('string' == typeof msg) {
+    el.find('p').text(msg);
+  } else if (msg) {
+    el.find('p').replaceWith(msg.el || msg);
+  }
+
+  setTimeout(function(){
+    el.removeClass('hide');
+  }, 0);
+};
+
+/**
+ * Enable the dialog close link.
+ *
+ * @return {Dialog} for chaining
+ * @api public
+ */
+
+Dialog.prototype.closable = function(){
+  this.el.addClass('closable');
+  return this;
+};
+
+/**
+ * Set the effect to `type`.
+ *
+ * @param {String} type
+ * @return {Dialog} for chaining
+ * @api public
+ */
+
+Dialog.prototype.effect = function(type){
+  this._effect = type;
+  this.el.addClass(type);
+  return this;
+};
+
+/**
+ * Make it modal!
+ *
+ * @return {Dialog} for chaining
+ * @api public
+ */
+
+Dialog.prototype.modal = function(){
+  this._overlay = ui.overlay();
+  return this;
+};
+
+/**
+ * Add an overlay.
+ *
+ * @return {Dialog} for chaining
+ * @api public
+ */
+
+Dialog.prototype.overlay = function(){
+  var self = this;
+  var overlay = ui.overlay({ closable: true });
+
+  overlay.on('hide', function(){
+    self.closedOverlay = true;
+    self.hide();
+  });
+
+  overlay.on('close', function(){
+    self.emit('close');
+  });
+
+  this._overlay = overlay;
+  return this;
+};
+
+/**
+ * Close the dialog when the escape key is pressed.
+ *
+ * @api private
+ */
+
+Dialog.prototype.escapable = function(){
+  var self = this;
+  $(document).bind('keydown.dialog', function(e){
+    if (27 != e.which) return;
+    $(this).unbind('keydown.dialog');
+    self.emit('escape');
+    self.hide();
+  });
+};
+
+/**
+ * Show the dialog.
+ *
+ * Emits "show" event.
+ *
+ * @return {Dialog} for chaining
+ * @api public
+ */
+
+Dialog.prototype.show = function(){
+  var overlay = this._overlay;
+
+  this.emit('show');
+
+  if (overlay) {
+    overlay.show();
+    this.el.addClass('modal');
+  }
+
+  // escape
+  if (!overlay || overlay.closable) this.escapable();
+
+  this.el.appendTo('body');
+  this.el.css({ marginLeft: -(this.el.width() / 2) + 'px' });
+  this.emit('show');
+  return this;
+};
+
+/**
+ * Hide the dialog with optional delay of `ms`,
+ * otherwise the dialog is removed immediately.
+ *
+ * Emits "hide" event.
+ *
+ * @return {Number} ms
+ * @return {Dialog} for chaining
+ * @api public
+ */
+
+Dialog.prototype.hide = function(ms){
+  var self = this;
+
+  // prevent thrashing
+  this.hiding = true;
+
+  // duration
+  if (ms) {
+    setTimeout(function(){
+      self.hide();
+    }, ms);
+    return this;
+  }
+
+  // hide / remove
+  this.el.addClass('hide');
+  if (this._effect) {
+    setTimeout(function(){
+      self.remove();
+    }, 500);
+  } else {
+    self.remove();
+  }
+
+  // modal
+  if (this._overlay && !self.closedOverlay) this._overlay.hide();
+
+  return this;
+};
+
+/**
+ * Hide the dialog without potential animation.
+ *
+ * @return {Dialog} for chaining
+ * @api public
+ */
+
+Dialog.prototype.remove = function(){
+  this.emit('hide');
+  this.el.remove();
+  $(document).unbind('keydown.dialog');
+  return this;
+};
+
+})(ui, "<div id=\"dialog\" class=\"hide\">\n  <div class=\"content\">\n    <h1>Title</h1>\n    <a href=\"#\" class=\"close\">×</a>\n    <p>Message</p>\n  </div>\n</div>");

clientapp/modules/andlog.js

@@ -0,0 +1,28 @@
+// follow @HenrikJoreteg and @andyet if you like this ;)
+(function (window) {
+    var ls = window.localStorage,
+        out = {},
+        inNode = typeof process !== 'undefined';
+
+    if (inNode) {
+        module.exports = console;
+        return;
+    }
+
+    if (ls && ls.debug && window.console) {
+        out = window.console;
+    } else {
+        var methods = "assert,count,debug,dir,dirxml,error,exception,group,groupCollapsed,groupEnd,info,log,markTimeline,profile,profileEnd,time,timeEnd,trace,warn".split(","),
+            l = methods.length,
+            fn = function () {};
+        
+        while (l--) {
+            out[methods[l]] = fn;
+        }
+    }
+    if (typeof exports !== 'undefined') {
+        module.exports = out;
+    } else {
+        window.console = out;
+    }
+})(this);

clientapp/modules/conversat.io.js

@@ -0,0 +1,54 @@
+var SimpleWebRTC = require('simplewebrtc');
+
+
+function Conversatio(spec) {
+    var opts = {},
+        self = this,
+        item;
+
+    if (typeof spec === 'object') {
+        for (item in spec) {
+            opts[item] = spec[item];
+        }
+    }
+
+    SimpleWebRTC.call(this, opts);
+
+    if (opts.token) {
+        this.auth(opts.token);
+    }
+
+    this.connection.on('passwordRequired', this.emit.bind(this, 'passwordRequired'));
+    this.connection.on('passwordFailed', this.emit.bind(this, 'passwordFailed'));
+    this.connection.on('unlocked', this.emit.bind(this, 'unlocked'));
+    this.connection.on('locked', this.emit.bind(this, 'locked'));
+}
+
+Conversatio.prototype = Object.create(SimpleWebRTC.prototype, {
+    constructor: {
+        value: Conversatio
+    }
+});
+
+Conversatio.prototype.auth = function (token, cb) {
+    var self = this;
+    this.connection.emit('validateToken', token, function (err, user) {
+        if (err) {
+            self.emit('authFailed', err);
+        } else {
+            self.emit('user', user);
+        }
+        cb && cb(err, user);
+    });
+};
+
+Conversatio.prototype.lockRoom = function (password, cb) {
+    this.connection.emit('lockRoom', password, cb);
+};
+
+Conversatio.prototype.unlockRoom = function (cb) {
+    this.connection.emit('unlockRoom', cb);
+};
+
+
+module.exports = Conversatio;

clientapp/modules/cookie-getter.js

@@ -0,0 +1,10 @@
+// simple commonJS cookie reader, best perf according to http://jsperf.com/cookie-parsing
+module.exports = function (name) {
+    var cookie = document.cookie,
+        setPos = cookie.indexOf(name + '='),
+        stopPos = cookie.indexOf(';', setPos),
+        res;
+    if (!~setPos) return null;
+    res = decodeURIComponent(cookie.substring(setPos, ~stopPos ? stopPos : undefined).split('=')[1]);
+    return (res.charAt(0) === '{') ? JSON.parse(res) : res;
+};

clientapp/modules/fluidGrid.js

@@ -0,0 +1,229 @@
+(function () {
+// reference to our currently focused element
+var focusedEl;
+
+function getFluidGridFunction(selector) {
+    return function (focus) {
+        reOrganize(selector, focus);
+    };
+}
+
+function biggestBox(container, aspectRatio) {
+    var aspectRatio = aspectRatio || (3 / 4),
+        height = (container.width * aspectRatio),
+        res = {};
+
+    if (height > container.height) {
+        return {
+            height: container.height,
+            width: container.height / aspectRatio
+        };
+    } else {
+        return {
+            width: container.width,
+            height: container.width * aspectRatio
+        };
+    }
+}
+
+function reOrganize(selector, focus) {
+    var floor = Math.floor,
+        elements = $(selector),
+        howMany = elements.length,
+        howManyNonFocused = function () {
+            var hasFocused = !!elements.find('.focused').length;
+            if (hasFocused && howMany > 1) {
+                return howMany - 1;
+            } else if (hasFocused && howMany === 1) {
+                return 1;
+            } else {
+                return howMany;
+            }
+        }(),
+
+        totalAvailableWidth = window.innerWidth,
+        totalAvailableHeight = window.innerHeight - 140,
+
+        availableWidth = totalAvailableWidth,
+        availableHeight = totalAvailableHeight,
+
+        container = {
+            width: availableWidth,
+            height: availableHeight
+        },
+        columnPadding = 15,
+        minimumWidth = 290,
+        aspectRatio = 3 / 4,
+
+        numberOfColumns,
+        numberOfRows,
+
+        numberOfPaddingColumns,
+        numberOfPaddingRows,
+
+        itemDimensions,
+        totalWidth,
+
+        videoWidth,
+        leftMargin,
+
+        videoHeight,
+        usedHeight,
+        topMargin,
+
+        // do we have one selected?
+        // this is because having a single
+        // focused element is not treated
+        // differently, but we don't want to
+        // lose that reference.
+        haveFocusedEl;
+
+
+    // if we passed in a string here (could be "none")
+    // then we want to either set or clear our current
+    // focused element.
+    if (focus) focusedEl = $(focus)[0];
+
+    // make sure our cached focused element is still
+    // attached.
+    if (focusedEl && !$(focusedEl).parent().length) focusedEl = undefined;
+
+    // figure out if we should consider us as having any
+    // special focused elements
+    haveFocusedEl = focusedEl && howManyNonFocused > 1;
+
+    elements.height(availableHeight);
+
+    // how we want the to stack at different numbers
+    if (haveFocusedEl) {
+        numberOfColumns = howManyNonFocused - 1;
+        numberOfRows = 1;
+        availableHeight = totalAvailableHeight * .2;
+    } else if (howManyNonFocused === 0) {
+        return;
+    } else if (howManyNonFocused === 1) {
+        numberOfColumns = 1;
+        numberOfRows = 1;
+    } else if (howManyNonFocused === 2) {
+        if (availableWidth > availableHeight) {
+            numberOfColumns = 2;
+            numberOfRows = 1;
+        } else {
+            numberOfColumns = 1;
+            numberOfRows = 2;
+        }
+    } else if (howManyNonFocused === 3) {
+        if (availableWidth > availableHeight) {
+            numberOfColumns = 3;
+            numberOfRows = 1;
+        } else {
+            numberOfColumns = 1;
+            numberOfRows = 3;
+        }
+    } else if (howManyNonFocused === 4) {
+        numberOfColumns = 2;
+        numberOfRows = 2;
+    } else if (howManyNonFocused === 5) {
+        numberOfColumns = 3;
+        numberOfRows = 2;
+    } else if (howManyNonFocused === 6) {
+        if (availableWidth > availableHeight) {
+            numberOfColumns = 3;
+            numberOfRows = 2;
+        } else {
+            numberOfColumns = 2;
+            numberOfRows = 3;
+        }
+    }
+
+    itemDimensions = biggestBox({
+        width: availableWidth / numberOfColumns,
+        height: availableHeight / numberOfRows
+    });
+
+    numberOfPaddingColumns = numberOfColumns - 1;
+    numberOfPaddingRows = numberOfRows - 1;
+
+    totalWidth = itemDimensions.width * numberOfColumns;
+
+    videoWidth = function () {
+        var totalWidthLessPadding = totalWidth - (columnPadding * numberOfPaddingColumns);
+        return totalWidthLessPadding / numberOfColumns;
+    }();
+
+    leftMargin = (availableWidth - totalWidth) / 2;
+
+    videoHeight = itemDimensions.height - ((numberOfRows > 1) ? (columnPadding / numberOfRows) : 0);
+    usedHeight = (numberOfRows * videoHeight);
+    topMargin = (availableHeight - usedHeight) / 2;
+
+    if (haveFocusedEl) {
+        elements = elements.not('.focused');
+    }
+
+    elements.each(function (index) {
+        var order = index,
+            row = floor(order / numberOfColumns),
+            column = order % numberOfColumns,
+            intensity = 12,
+            rotation = function () {
+                if (numberOfColumns === 3) {
+                    if (column === 0) {
+                        return 1;
+                    } else if (column === 1) {
+                        return 0;
+                    } else if (column === 2) {
+                        return -1
+                    }
+                } else if (numberOfColumns === 2) {
+                    intensity = 5;
+                    return column == 1 ? -1 : 1
+                } else if (numberOfColumns === 1) {
+                    return 0;
+                }
+            }(),
+            transformation = 'rotateY(' + (rotation * intensity) + 'deg)';
+
+        if (rotation === 0) {
+            transformation += ' scale(.98)';
+        }
+
+        var calculatedTop;
+        if (haveFocusedEl) {
+            calculatedTop = (totalAvailableHeight * .8) + topMargin + 'px';
+        } else {
+            calculatedTop = (row * itemDimensions.height) + topMargin + 'px';
+        }
+
+        $(this).css({
+            //transform: transformation,
+            top: calculatedTop,
+            left: (column * itemDimensions.width) + leftMargin + 'px',
+            width: videoWidth + 'px',
+            height: videoHeight + 'px',
+            position: 'absolute'
+        });
+    });
+
+    if (haveFocusedEl) {
+        var focusSize = biggestBox({
+            height: (totalAvailableHeight * .8),
+            width: totalAvailableWidth
+        }, focusedEl.videoHeight / focusedEl.videoWidth);
+
+        $(focusedEl).css({
+            top: 0,
+            height: focusSize.height - topMargin,
+            width: focusSize.width,
+            left: (totalAvailableWidth / 2) - (focusSize.width / 2)
+        });
+    }
+}
+
+if (typeof exports !== 'undefined') {
+    module.exports = getFluidGridFunction;
+} else {
+    window.getFluidGridFunction = getFluidGridFunction;
+}
+
+})();

clientapp/modules/simplewebrtc.js

@@ -0,0 +1,678 @@
+;(function () {
+
+var logger = {
+    log: function (){},
+    warn: function (){},
+    error: function (){}
+};
+
+// normalize environment
+var RTCPeerConnection = null,
+    getUserMedia = null,
+    attachMediaStream = null,
+    reattachMediaStream = null,
+    browser = null,
+    screenSharingSupport = false;
+    webRTCSupport = true;
+
+if (navigator.mozGetUserMedia) {
+    logger.log("This appears to be Firefox");
+
+    browser = "firefox";
+
+    // The RTCPeerConnection object.
+    RTCPeerConnection = mozRTCPeerConnection;
+
+    // The RTCSessionDescription object.
+    RTCSessionDescription = mozRTCSessionDescription;
+
+    // The RTCIceCandidate object.
+    RTCIceCandidate = mozRTCIceCandidate;
+
+    // Get UserMedia (only difference is the prefix).
+    // Code from Adam Barth.
+    getUserMedia = navigator.mozGetUserMedia.bind(navigator);
+
+    // Attach a media stream to an element.
+    attachMediaStream = function(element, stream) {
+        element.mozSrcObject = stream;
+        element.play();
+    };
+
+    reattachMediaStream = function(to, from) {
+        to.mozSrcObject = from.mozSrcObject;
+        to.play();
+    };
+
+    // Fake get{Video,Audio}Tracks
+    MediaStream.prototype.getVideoTracks = function() {
+        return [];
+    };
+
+    MediaStream.prototype.getAudioTracks = function() {
+        return [];
+    };
+} else if (navigator.webkitGetUserMedia) {
+    browser = "chrome";
+
+    screenSharingSupport = navigator.userAgent.match('Chrome') && parseInt(navigator.userAgent.match(/Chrome\/(.*) /)[1]) >= 26
+
+    // The RTCPeerConnection object.
+    RTCPeerConnection = webkitRTCPeerConnection;
+
+    // Get UserMedia (only difference is the prefix).
+    // Code from Adam Barth.
+    getUserMedia = navigator.webkitGetUserMedia.bind(navigator);
+
+    // Attach a media stream to an element.
+    attachMediaStream = function(element, stream) {
+        element.autoplay = true;
+        element.src = webkitURL.createObjectURL(stream);
+    };
+
+    reattachMediaStream = function(to, from) {
+        to.src = from.src;
+    };
+
+    // The representation of tracks in a stream is changed in M26.
+    // Unify them for earlier Chrome versions in the coexisting period.
+    if (!webkitMediaStream.prototype.getVideoTracks) {
+        webkitMediaStream.prototype.getVideoTracks = function() {
+            return this.videoTracks;
+        };
+        webkitMediaStream.prototype.getAudioTracks = function() {
+            return this.audioTracks;
+        };
+    }
+
+    // New syntax of getXXXStreams method in M26.
+    if (!webkitRTCPeerConnection.prototype.getLocalStreams) {
+        webkitRTCPeerConnection.prototype.getLocalStreams = function() {
+            return this.localStreams;
+        };
+        webkitRTCPeerConnection.prototype.getRemoteStreams = function() {
+            return this.remoteStreams;
+        };
+    }
+} else {
+    webRTCSupport = false;
+    throw new Error("Browser does not appear to be WebRTC-capable");
+}
+
+
+// emitter that we use as a base
+function WildEmitter() {
+    this.callbacks = {};
+}
+
+// Listen on the given `event` with `fn`. Store a group name if present.
+WildEmitter.prototype.on = function (event, groupName, fn) {
+    var hasGroup = (arguments.length === 3),
+        group = hasGroup ? arguments[1] : undefined,
+        func = hasGroup ? arguments[2] : arguments[1];
+    func._groupName = group;
+    (this.callbacks[event] = this.callbacks[event] || []).push(func);
+    return this;
+};
+
+// Adds an `event` listener that will be invoked a single
+// time then automatically removed.
+WildEmitter.prototype.once = function (event, fn) {
+    var self = this;
+    function on() {
+        self.off(event, on);
+        fn.apply(this, arguments);
+    }
+    this.on(event, on);
+    return this;
+};
+
+// Unbinds an entire group
+WildEmitter.prototype.releaseGroup = function (groupName) {
+    var item, i, len, handlers;
+    for (item in this.callbacks) {
+        handlers = this.callbacks[item];
+        for (i = 0, len = handlers.length; i < len; i++) {
+            if (handlers[i]._groupName === groupName) {
+                handlers.splice(i, 1);
+                i--;
+                len--;
+            }
+        }
+    }
+    return this;
+};
+
+// Remove the given callback for `event` or all
+// registered callbacks.
+WildEmitter.prototype.off = function (event, fn) {
+    var callbacks = this.callbacks[event],
+        i;
+
+    if (!callbacks) return this;
+
+    // remove all handlers
+    if (arguments.length === 1) {
+        delete this.callbacks[event];
+        return this;
+    }
+
+    // remove specific handler
+    i = callbacks.indexOf(fn);
+    callbacks.splice(i, 1);
+    return this;
+};
+
+// Emit `event` with the given args.
+// also calls any `*` handlers
+WildEmitter.prototype.emit = function (event) {
+    var args = [].slice.call(arguments, 1),
+        callbacks = this.callbacks[event],
+        specialCallbacks = this.getWildcardCallbacks(event),
+        i,
+        len,
+        item;
+
+    if (callbacks) {
+        for (i = 0, len = callbacks.length; i < len; ++i) {
+            callbacks[i].apply(this, args);
+        }
+    }
+
+    if (specialCallbacks) {
+        for (i = 0, len = specialCallbacks.length; i < len; ++i) {
+            specialCallbacks[i].apply(this, [event].concat(args));
+        }
+    }
+
+    return this;
+};
+
+// Helper for for finding special wildcard event handlers that match the event
+WildEmitter.prototype.getWildcardCallbacks = function (eventName) {
+    var item,
+        split,
+        result = [];
+
+    for (item in this.callbacks) {
+        split = item.split('*');
+        if (item === '*' || (split.length === 2 && eventName.slice(0, split[1].length) === split[1])) {
+            result = result.concat(this.callbacks[item]);
+        }
+    }
+    return result;
+};
+
+
+function WebRTC(opts) {
+    var self = this,
+        options = opts || {},
+        config = this.config = {
+            url: 'http://signaling.simplewebrtc.com:8888',
+            log: false,
+            localVideoEl: '',
+            remoteVideosEl: '',
+            autoRequestMedia: false,
+            autoRemoveVideos: true,
+            // makes the entire PC config overridable
+            peerConnectionConfig: {
+                iceServers: browser == 'firefox' ? [{"url":"stun:124.124.124.2"}] : [{"url": "stun:stun.l.google.com:19302"}]
+            },
+            peerConnectionContraints: {
+                optional: [{"DtlsSrtpKeyAgreement": true}]
+            },
+            media: {
+                audio:true,
+                video: {
+                    mandatory: {},
+                    optional: []
+                }
+            }
+        },
+        item,
+        connection;
+
+    // check for support
+    if (!webRTCSupport) {
+        console.error('Your browser doesn\'t seem to support WebRTC');
+    }
+
+    // expose screensharing check
+    this.screenSharingSupport = screenSharingSupport;
+
+    // set options
+    for (item in options) {
+        this.config[item] = options[item];
+    }
+
+    // log if configured to
+    if (this.config.log) logger = console;
+
+    // where we'll store our peer connections
+    this.peers = [];
+
+    // our socket.io connection
+    connection = this.connection = io.connect(this.config.url);
+
+    connection.on('connect', function () {
+        self.emit('ready', connection.socket.sessionid);
+        self.sessionReady = true;
+        self.testReadiness();
+    });
+
+    connection.on('message', function (message) {
+        var peers = self.getPeers(message.from, message.roomType),
+            peer;
+
+        if (message.type === 'offer') {
+            peer = self.createPeer({
+                id: message.from,
+                type: message.roomType,
+                sharemyscreen: message.roomType === 'screen' && !message.broadcaster
+            });
+            peer.handleMessage(message);
+        } else if (peers.length) {
+            peers.forEach(function (peer) {
+                peer.handleMessage(message);
+            });
+        }
+    });
+
+    connection.on('remove', function (room) {
+        if (room.id !== self.connection.socket.sessionid) {
+            self.removeForPeerSession(room.id, room.type);
+        }
+    });
+
+    WildEmitter.call(this);
+
+    // log events
+    this.on('*', function (event, val1, val2) {
+        logger.log('event:', event, val1, val2);
+    });
+
+    // auto request if configured
+    if (this.config.autoRequestMedia) this.startLocalVideo();
+}
+
+WebRTC.prototype = Object.create(WildEmitter.prototype, {
+    constructor: {
+        value: WebRTC
+    }
+});
+
+WebRTC.prototype.getEl = function (idOrEl) {
+    if (typeof idOrEl === 'string') {
+        return document.getElementById(idOrEl);
+    } else {
+        return idOrEl;
+    }
+};
+
+// this accepts either element ID or element
+// and either the video tag itself or a container
+// that will be used to put the video tag into.
+WebRTC.prototype.getLocalVideoContainer = function () {
+    var el = this.getEl(this.config.localVideoEl);
+    if (el && el.tagName === 'VIDEO') {
+        return el;
+    } else {
+        var video = document.createElement('video');
+        el.appendChild(video);
+        return video;
+    }
+};
+
+WebRTC.prototype.getRemoteVideoContainer = function () {
+    return this.getEl(this.config.remoteVideosEl);
+};
+
+WebRTC.prototype.createPeer = function (opts) {
+    var peer;
+    opts.parent = this;
+    peer = new Peer(opts);
+    this.peers.push(peer);
+    return peer;
+};
+
+WebRTC.prototype.createRoom = function (name, cb) {
+    if (arguments.length === 2) {
+        this.connection.emit('create', name, cb);
+    } else {
+        this.connection.emit('create', name);
+    }
+};
+
+WebRTC.prototype.joinRoom = function (name, cb) {
+    var self = this;
+    this.roomName = name;
+    this.connection.emit('join', name, function (err, roomDescription) {
+        if (err) {
+            self.emit('error', err);
+        } else {
+            var id,
+                client,
+                type,
+                peer;
+            for (id in roomDescription.clients) {
+                client = roomDescription.clients[id];
+                for (type in client) {
+                    if (client[type]) {
+                        peer = self.createPeer({
+                            id: id,
+                            type: type
+                        });
+                        peer.start();
+                    }
+                }
+            }
+        }
+
+        if (cb instanceof Function) cb(err, roomDescription);
+    });
+};
+
+WebRTC.prototype.leaveRoom = function () {
+    if (this.roomName) {
+        this.connection.emit('leave', this.roomName);
+        this.peers.forEach(function (peer) {
+            peer.end();
+        });
+    }
+};
+
+WebRTC.prototype.testReadiness = function () {
+    var self = this;
+    if (this.localStream && this.sessionReady) {
+        // This timeout is a workaround for the strange no-audio bug
+        // as described here: https://code.google.com/p/webrtc/issues/detail?id=1525
+        // remove timeout when this is fixed.
+        setTimeout(function () {
+            self.emit('readyToCall', self.connection.socket.sessionid);
+        }, 1000);
+    }
+};
+
+WebRTC.prototype.startLocalVideo = function (element) {
+    var self = this;
+    getUserMedia(this.config.media, function (stream) {
+        attachMediaStream(element || self.getLocalVideoContainer(), stream);
+        element.muted = true;
+        self.localStream = stream;
+        self.testReadiness();
+    }, function () {
+        throw new Error('Failed to get access to local media.');
+    });
+};
+
+// Audio controls
+WebRTC.prototype.mute = function () {
+    this._audioEnabled(false);
+    this.emit('audioOff');
+};
+WebRTC.prototype.unmute = function () {
+    this._audioEnabled(true);
+    this.emit('audioOn');
+};
+
+// Video controls
+WebRTC.prototype.pauseVideo = function () {
+    this._videoEnabled(false);
+    this.emit('videoOff');
+};
+WebRTC.prototype.resumeVideo = function () {
+    this._videoEnabled(true);
+    this.emit('videoOn');
+};
+
+// Combined controls
+WebRTC.prototype.pause = function () {
+    this.mute();
+    this.pauseVideo();
+};
+WebRTC.prototype.resume = function () {
+    this.unmute();
+    this.resumeVideo();
+};
+
+// Internal methods for enabling/disabling audio/video
+WebRTC.prototype._audioEnabled = function (bool) {
+    this.localStream.getAudioTracks().forEach(function (track) {
+        track.enabled = !!bool;
+    });
+};
+WebRTC.prototype._videoEnabled = function (bool) {
+    this.localStream.getVideoTracks().forEach(function (track) {
+        track.enabled = !!bool;
+    });
+};
+
+WebRTC.prototype.shareScreen = function () {
+    var self = this,
+        peer;
+    if (screenSharingSupport) {
+        getUserMedia({
+            video: {
+                mandatory: {
+                    chromeMediaSource: 'screen'
+                }
+            }
+        }, function (stream) {
+            var item,
+                el = document.createElement('video'),
+                container = self.getRemoteVideoContainer();
+
+            self.localScreen = stream;
+            el.id = 'localScreen';
+            attachMediaStream(el, stream);
+            if (container) {
+                container.appendChild(el);
+            }
+
+            // TODO: Once this chrome bug is fixed:
+            // https://code.google.com/p/chromium/issues/detail?id=227485
+            // we need to listen for the screenshare stream ending and call
+            // the "stopScreenShare" method to clean things up.
+
+            self.emit('videoAdded', el);
+            self.connection.emit('shareScreen');
+            self.peers.forEach(function (existingPeer) {
+                var peer;
+                if (existingPeer.type === 'video') {
+                    peer = self.createPeer({
+                        id: existingPeer.id,
+                        type: 'screen',
+                        sharemyscreen: true
+                    });
+                    peer.start();
+                }
+            });
+        }, function () {
+            throw new Error('Failed to access to screen media.');
+        });
+    }
+};
+
+WebRTC.prototype.stopScreenShare = function () {
+    this.connection.emit('unshareScreen');
+    var videoEl = document.getElementById('localScreen'),
+        container = this.getRemoteVideoContainer(),
+        stream = this.localScreen;
+
+    if (this.config.autoRemoveVideos && container && videoEl) {
+        container.removeChild(videoEl);
+
+    }
+
+    // a hack to emit the event the removes the video
+    // element that we want
+    if (videoEl) this.emit('videoRemoved', videoEl);
+    this.localScreen.stop();
+    this.peers.forEach(function (peer) {
+        if (peer.broadcaster) {
+            peer.end();
+        }
+    });
+    delete this.localScreen;
+};
+
+WebRTC.prototype.removeForPeerSession = function (id, type) {
+    this.getPeers(id, type).forEach(function (peer) {
+        peer.end();
+    });
+};
+
+// fetches all Peer objects by session id and/or type
+WebRTC.prototype.getPeers = function (sessionId, type) {
+    return this.peers.filter(function (peer) {
+        return (!sessionId || peer.id === sessionId) && (!type || peer.type === type);
+    });
+};
+
+
+function Peer(options) {
+    var self = this;
+
+    this.id = options.id;
+    this.parent = options.parent;
+    this.type = options.type || 'video';
+    this.oneway = options.oneway || false;
+    this.sharemyscreen = options.sharemyscreen || false;
+    this.stream = options.stream;
+    // Create an RTCPeerConnection via the polyfill
+    this.pc = new RTCPeerConnection(this.parent.config.peerConnectionConfig, this.parent.config.peerConnectionContraints);
+    this.pc.onicecandidate = this.onIceCandidate.bind(this);
+    if (options.type === 'screen') {
+        if (this.parent.localScreen && this.sharemyscreen) {
+            logger.log('adding local screen stream to peer connection')
+            this.pc.addStream(this.parent.localScreen);
+            this.broadcaster = this.parent.connection.socket.sessionid;
+        }
+    } else {
+        this.pc.addStream(this.parent.localStream);
+    }
+    this.pc.onaddstream = this.handleRemoteStreamAdded.bind(this);
+    this.pc.onremovestream = this.handleStreamRemoved.bind(this);
+    // for re-use
+    this.mediaConstraints = {
+        mandatory: {
+            OfferToReceiveAudio: true,
+            OfferToReceiveVideo: true
+        }
+    };
+    WildEmitter.call(this);
+
+    // proxy events to parent
+    this.on('*', function (name, value) {
+        self.parent.emit(name, value, self);
+    });
+}
+
+Peer.prototype = Object.create(WildEmitter.prototype, {
+    constructor: {
+        value: Peer
+    }
+});
+
+Peer.prototype.handleMessage = function (message) {
+    if (message.type === 'offer') {
+        logger.log('setting remote description');
+        this.pc.setRemoteDescription(new RTCSessionDescription(message.payload));
+        this.answer();
+    } else if (message.type === 'answer') {
+        logger.log('setting answer');
+        this.pc.setRemoteDescription(new RTCSessionDescription(message.payload));
+    } else if (message.type === 'candidate') {
+        var candidate = new RTCIceCandidate({
+            sdpMLineIndex: message.payload.label,
+            candidate: message.payload.candidate
+        });
+        this.pc.addIceCandidate(candidate);
+    }
+};
+
+Peer.prototype.send = function (type, payload) {
+    this.parent.connection.emit('message', {
+        to: this.id,
+        broadcaster: this.broadcaster,
+        roomType: this.type,
+        type: type,
+        payload: payload
+    });
+};
+
+Peer.prototype.onIceCandidate = function (event) {
+    if (this.closed) return;
+    if (event.candidate) {
+        this.send('candidate', {
+            label: event.candidate.sdpMLineIndex,
+            id: event.candidate.sdpMid,
+            candidate: event.candidate.candidate
+        });
+    } else {
+      logger.log("End of candidates.");
+    }
+};
+
+Peer.prototype.start = function () {
+    var self = this;
+    this.pc.createOffer(function (sessionDescription) {
+        logger.log('setting local description');
+        self.pc.setLocalDescription(sessionDescription);
+        logger.log('sending offer', sessionDescription);
+        self.send('offer', sessionDescription);
+    }, null, this.mediaConstraints);
+};
+
+Peer.prototype.end = function () {
+    this.pc.close();
+    this.handleStreamRemoved();
+};
+
+Peer.prototype.answer = function () {
+    var self = this;
+    logger.log('answer called');
+    this.pc.createAnswer(function (sessionDescription) {
+        logger.log('setting local description');
+        self.pc.setLocalDescription(sessionDescription);
+        logger.log('sending answer', sessionDescription);
+        self.send('answer', sessionDescription);
+    }, null, this.mediaConstraints);
+};
+
+Peer.prototype.handleRemoteStreamAdded = function (event) {
+    var stream = this.stream = event.stream,
+        el = document.createElement('video'),
+        container = this.parent.getRemoteVideoContainer();
+
+    el.id = this.getDomId();
+    attachMediaStream(el, stream);
+    if (container) container.appendChild(el);
+    this.emit('videoAdded', el);
+};
+
+Peer.prototype.handleStreamRemoved = function () {
+    var video = document.getElementById(this.getDomId()),
+        container = this.parent.getRemoteVideoContainer();
+    if (video) {
+        this.emit('videoRemoved', video);
+        if (container && this.parent.config.autoRemoveVideos) {
+            container.removeChild(video);
+        }
+    }
+    this.parent.peers.splice(this.parent.peers.indexOf(this), 1);
+    this.closed = true;
+};
+
+Peer.prototype.getDomId = function () {
+    return [this.id, this.type, this.broadcaster ? 'broadcasting' : 'incoming'].join('_');
+};
+
+// expose WebRTC
+if (typeof module !== 'undefined') {
+    module.exports = WebRTC;
+} else {
+    window.WebRTC = WebRTC;
+}
+
+}());

clientapp/modules/slugger.js

@@ -0,0 +1,21 @@
+// replaces all whitespace with '-' and removes
+// all non-url friendly characters
+(function () {
+var whitespace = /\s+/g,
+    nonAscii = /[^A-Za-z0-9_ \-]/g;
+
+function slugger(string, opts) {
+    var maintainCase = opts && opts.maintainCase || false,
+        replacement = opts && opts.replacement || '-',
+        key;
+    if (typeof string !== 'string') return '';
+    if (!maintainCase) string = string.toLowerCase();
+    return string.replace(nonAscii, '').replace(whitespace, replacement);
+};
+
+if (typeof module !== 'undefined') {
+    module.exports = slugger;
+} else {
+    window.slugger = slugger;
+}
+})();

clientapp/modules/sound-effect-manager.js

@@ -0,0 +1,140 @@
+/*
+SoundEffectManager
+
+Loads and plays sound effects useing
+HTML5 Web Audio API (as only available in webkit, at the moment).
+
+By @HenrikJoreteg from &yet
+*/
+/*global webkitAudioContext define*/
+(function () {
+    var root = this;
+
+    function SoundEffectManager() {
+        this.support = !!window.webkitAudioContext;
+        if (this.support) {
+            this.context = new webkitAudioContext();
+        }
+        this.sounds = {};
+    }
+
+    // async load a file at a given URL, store it as 'name'.
+    SoundEffectManager.prototype.loadFile = function (url, name, delay, cb) {
+        if (this.support) {
+            this._loadWebAudioFile(url, name, delay, cb);
+        } else {
+            this._loadWaveFile(url.replace('.mp3', '.wav'), name, delay, 3, cb);
+        }
+    };
+
+    // async load a file at a given URL, store it as 'name'.
+    SoundEffectManager.prototype._loadWebAudioFile = function (url, name, delay, cb) {
+        if (!this.support) return;
+        var self = this,
+            request = new XMLHttpRequest();
+
+        request.open("GET", url, true);
+        request.responseType = "arraybuffer";
+        request.onload = function () {
+            self.sounds[name] = self.context.createBuffer(request.response, true);
+            cb && cb();
+        };
+
+        setTimeout(function () {
+            request.send();
+        }, delay || 0);
+    };
+
+    SoundEffectManager.prototype._loadWaveFile = function (url, name, delay, multiplexLimit, cb) {
+        var self = this,
+            limit = multiplexLimit || 3;
+        setTimeout(function () {
+            var a, i = 0;
+
+            self.sounds[name] = [];
+            while (i < limit) {
+                a = new Audio();
+                a.src = url;
+                // for our callback
+                if (i === 0 && cb) {
+                    a.addEventListener('canplaythrough', cb, false);
+                }
+                a.load();
+                self.sounds[name][i++] = a;
+            }
+        }, delay || 0);
+    };
+
+    SoundEffectManager.prototype._playWebAudio = function (soundName) {
+        var buffer = this.sounds[soundName],
+            source;
+
+        if (!buffer) return;
+
+        // creates a sound source
+        source = this.context.createBufferSource();
+        // tell the source which sound to play
+        source.buffer = buffer;
+        // connect the source to the context's destination (the speakers)
+        source.connect(this.context.destination);
+        // play it
+        source.noteOn(0);
+    };
+
+    SoundEffectManager.prototype._playWavAudio = function (soundName, loop) {
+        var self = this,
+            audio = this.sounds[soundName],
+            howMany = audio && audio.length || 0,
+            i = 0,
+            currSound;
+
+        if (!audio) return;
+
+        while (i < howMany) {
+            currSound = audio[i++];
+            // this covers case where we loaded an unplayable file type
+            if (currSound.error) return;
+            if (currSound.currentTime === 0 || currSound.currentTime === currSound.duration) {
+                currSound.currentTime = 0;
+                currSound.loop = !!loop;
+                i = howMany;
+                return currSound.play();
+            }
+        }
+    };
+
+    SoundEffectManager.prototype.play = function (soundName, loop) {
+        if (this.support) {
+            this._playWebAudio(soundName, loop);
+        } else {
+            return this._playWavAudio(soundName, loop);
+        }
+    };
+
+    SoundEffectManager.prototype.stop = function (soundName) {
+        if (this.support) {
+            // TODO: this
+        } else {
+            var soundArray = this.sounds[soundName],
+                howMany = soundArray && soundArray.length || 0,
+                i = 0,
+                currSound;
+
+            while (i < howMany) {
+                currSound = soundArray[i++];
+                currSound.pause();
+                currSound.currentTime = 0;
+            }
+        }
+    };
+
+    // attach to window or export with commonJS
+    if (typeof module !== "undefined") {
+        module.exports = SoundEffectManager;
+    } else if (typeof root.define === "function" && define.amd) {
+        root.define(SoundEffectManager);
+    } else {
+        root.SoundEffectManager = SoundEffectManager;
+    }
+
+})();

clientapp/modules/strictmodel.js

@@ -0,0 +1,565 @@
+//   (c) 2013 Henrik Joreteg
+//   MIT Licensed
+//   For all details and documentation:
+//   https://github.com/HenrikJoreteg/StrictModel
+(function () {
+  'use strict';
+
+  // Initial setup
+  // -------------
+
+  // Establish the root object, `window` in the browser, or `global` on the server.
+  var root = this;
+
+  // The top-level namespace. All public Backbone classes and modules will
+  // be attached to this. Exported for both CommonJS and the browser.
+  var Strict = typeof exports !== 'undefined' ? exports : root.Strict = {},
+    toString = Object.prototype.toString,
+    slice = Array.prototype.slice;
+
+  // Current version of the library. Keep in sync with `package.json`.
+  Strict.VERSION = '0.0.1';
+
+  // Require Underscore, if we're on the server, and it's not already present.
+  var _ = root._;
+  if (!_ && (typeof require !== 'undefined')) _ = require('underscore');
+
+  // Require Backbone, if we're on the server, and it's not already present.
+  var Backbone = root.Backbone;
+  if (!Backbone && (typeof require !== 'undefined')) Backbone = require('backbone');
+
+  // Backbone Collection compatibility fix:
+  // In backbone, when you add an already instantiated model to a collection
+  // the collection checks to see if what you're adding is already a model
+  // the problem is, it does this witn an instanceof check. We're wanting to
+  // use completely different models so the instanceof will fail even if they
+  // are "real" models. So we work around this by overwriting this method from
+  // backbone 1.0.0. The only difference is it compares against our Strict.Model
+  // instead of backbone's.
+  Backbone.Collection.prototype._prepareModel = function (attrs, options) {
+    if (attrs instanceof Strict.Model) {
+      if (!attrs.collection) attrs.collection = this;
+      return attrs;
+    }
+    options || (options = {});
+    options.collection = this;
+    var model = new this.model(attrs, options);
+    if (!model._validate(attrs, options)) {
+      this.trigger('invalid', this, attrs, options);
+      return false;
+    }
+    return model;
+  };
+
+  // Helpers
+  // -------
+
+  // Shared empty constructor function to aid in prototype-chain creation.
+  var Constructor = function () {};
+
+  // Helper function to correctly set up the prototype chain, for subclasses.
+  // Similar to `goog.inherits`, but uses a hash of prototype properties and
+  // class properties to be extended.
+  var inherits = function (parent, protoProps, staticProps) {
+    var child;
+
+    // The constructor function for the new subclass is either defined by you
+    // (the "constructor" property in your `extend` definition), or defaulted
+    // by us to simply call the parent's constructor.
+    if (protoProps && protoProps.hasOwnProperty('constructor')) {
+      child = protoProps.constructor;
+    } else {
+      child = function () { return parent.apply(this, arguments); };
+    }
+
+    // Inherit class (static) properties from parent.
+    _.extend(child, parent);
+
+    // Set the prototype chain to inherit from `parent`, without calling
+    // `parent`'s constructor function.
+    Constructor.prototype = parent.prototype;
+    child.prototype = new Constructor();
+
+    // Add prototype properties (instance properties) to the subclass,
+    // if supplied.
+    if (protoProps) _.extend(child.prototype, protoProps);
+
+    // Add static properties to the constructor function, if supplied.
+    if (staticProps) _.extend(child, staticProps);
+
+    // Correctly set child's `prototype.constructor`.
+    child.prototype.constructor = child;
+
+    // Set a convenience property in case the parent's prototype is needed later.
+    child.__super__ = parent.prototype;
+
+    return child;
+  };
+
+  var extend = function (protoProps, classProps) {
+    var child = inherits(this, protoProps, classProps);
+    child.extend = this.extend;
+    return child;
+  };
+
+  // Mixins
+  // ------
+
+  // Sugar for defining properties a la ES5.
+  var Mixins = Strict.Mixins = {
+    // shortcut for Object.defineProperty
+    define: function (name, def) {
+      Object.defineProperty(this, name, def);
+    },
+
+    defineGetter: function (name, handler) {
+      this.define(name, {
+        get: handler.bind(this)
+      });
+    },
+
+    defineSetter: function (name, handler) {
+      this.define(name, {
+        set: handler.bind(this)
+      });
+    }
+  };
+
+  // Strict.Registry
+  // ---------------
+
+  // Internal storage for models, seperate namespace
+  // storage from default to prevent collision of matching
+  // model type+id and namespace name
+
+  var Registry = Strict.Registry = function () {
+    this._cache = {};
+    this._namespaces = {};
+  };
+
+  // Attach all inheritable methods to the Registry prototype.
+  _.extend(Registry.prototype, {
+    // Get the general or namespaced internal cache
+    _getCache: function (ns) {
+      if (ns) {
+        this._namespaces[ns] || (this._namespaces[ns] = {});
+        return this._namespaces[ns];
+      }
+      return this._cache;
+    },
+
+    // Find the cached model
+    lookup: function (type, id, ns) {
+      var cache = this._getCache(ns);
+      return cache && cache[type + id];
+    },
+
+    // Add a model to the cache if it has not already been set
+    store: function (model) {
+      var cache = this._getCache(model._namespace),
+        key = model.type + model.id;
+      // Prevent overriding a previously stored model
+      cache[key] = cache[key] || model;
+      return this;
+    },
+
+    // Remove a stored model from the cache, return `true` if removed
+    remove: function (type, id, ns) {
+      var cache = this._getCache(ns);
+      if (this.lookup.apply(this, arguments)) {
+        delete cache[type + id];
+        return true;
+      }
+      return false;
+    },
+
+    // Reset internal cache
+    clear: function () {
+      this._cache = {};
+      this._namespaces = {};
+    }
+  });
+
+  // Create the default Strict.registry.
+  Strict.registry = new Registry();
+
+  // Strict.Model
+  // ------------
+
+  var Model = Strict.Model = function (attrs, options) {
+    attrs = attrs || {};
+    options = options || {};
+
+    var modelFound,
+      opts = _.defaults(options || {}, {
+        seal: true
+      });
+
+    this._namespace = opts.namespace;
+    this._initted = false;
+    this._deps = {};
+    this._initProperties();
+    this._initCollections();
+    this._cache = {};
+    this._verifyRequired();
+    this.set(attrs, {silent: true});
+    this.init.apply(this, arguments);
+    if (attrs.id) Strict.registry.store(this);
+    this._previous = _.clone(this.attributes); // Should this be set right away?
+    this._initted = true;
+  };
+
+  // Attach all inheritable methods to the Model prototype.
+  _.extend(Model.prototype, Backbone.Events, Mixins, {
+    idAttribute: 'id',
+    idDefinition: {
+      type: 'number',
+      setOnce: true
+    },
+
+    // stubbed out to be overwritten
+    init: function () {
+      return this;
+    },
+
+    // Remove model from the registry and unbind events
+    remove: function () {
+      if (this.id) {
+        Strict.registry.remove(this.type, this.id, this._namespace);
+      }
+      this.trigger('remove', this);
+      this.off();
+      return this;
+    },
+
+    set: function (key, value, options) {
+      var self = this,
+        changing = self._changing,
+        opts,
+        changes = [],
+        newType,
+        interpretedType,
+        newVal,
+        def,
+        attr,
+        attrs,
+        val;
+
+      self._changing = true;
+
+      // Handle both `"key", value` and `{key: value}` -style arguments.
+      if (_.isObject(key) || key === null) {
+        attrs = key;
+        options = value;
+      } else {
+        attrs = {};
+        attrs[key] = value;
+      }
+
+      opts = options || {};
+
+      // For each `set` attribute...
+      for (attr in attrs) {
+        val = attrs[attr];
+        newType = typeof val;
+        newVal = val;
+
+        def = this.definition[attr] || {};
+
+        // check type if we have one
+        if (def.type === 'date') {
+          if (!_.isDate(val)) {
+            try {
+              newVal = (new Date(parseInt(val, 10))).valueOf();
+              newType = 'date';
+            } catch (e) {
+              newType = typeof val;
+            }
+          } else {
+            newType = 'date';
+            newVal = val.valueOf();
+          }
+        } else if (def.type === 'array') {
+          newType = _.isArray(val) ? 'array' : typeof val;
+        } else if (def.type === 'object') {
+          // we have to have a way of supporting "missing" objects.
+          // Null is an object, but setting a value to undefined
+          // should work too, IMO. We just override it, in that case.
+          if (typeof val !== 'object' && _.isUndefined(val)) {
+            newVal = null;
+            newType = 'object';
+          }
+        }
+
+        // If we have a defined type and the new type doesn't match, throw error.
+        // Unless it's not required and the value is undefined.
+        if (def.type && def.type !== newType && (!def.required && !_.isUndefined(val))) {
+          throw new TypeError('Property \'' + attr + '\' must be of type ' + def.type + '. Tried to set ' + val);
+        }
+
+        // if trying to set id after it's already been set
+        // reject that
+        if (def.setOnce && def.value !== undefined && !_.isEqual(def.value, newVal)) {
+          throw new TypeError('Property \'' + key + '\' can only be set once.');
+        }
+
+        // only change if different
+        if (!_.isEqual(def.value, newVal)) {
+          self._previous && (self._previous[attr] = def.value);
+          def.value = newVal;
+          changes.push(attr);
+        }
+      }
+
+      _.each(changes, function (key) {
+        if (!opts.silent) {
+          self.trigger('change:' + key, self, self[key]);
+        }
+        // TODO: ensure that all deps are not undefined before triggering a change event
+        (self._deps[key] || []).forEach(function (derTrigger) {
+          // blow away our cache
+          delete self._cache[derTrigger];
+          if (!opts.silent) self.trigger('change:' + derTrigger, self, self.derived[derTrigger]);
+        });
+      });
+
+      // fire general change events
+      if (changes.length) {
+        if (!opts.silent) self.trigger('change', self);
+      }
+    },
+
+    get: function (attr) {
+      return this[attr];
+    },
+
+    // convenience methods for manipulating array properties
+    addListVal: function (prop, value, prepend) {
+      var list = _.clone(this[prop]) || [];
+      if (!_(list).contains(value)) {
+        list[prepend ? 'unshift' : 'push'](value);
+        this[prop] = list;
+      }
+      return this;
+    },
+
+    previous: function (attr) {
+      return attr ? this._previous[attr] : _.clone(this._previous);
+    },
+
+    removeListVal: function (prop, value) {
+      var list = _.clone(this[prop]) || [];
+      if (_(list).contains(value)) {
+        this[prop] = _(list).without(value);
+      }
+      return this;
+    },
+
+    hasListVal: function (prop, value) {
+      return _.contains(this[prop] || [], value);
+    },
+
+    // -----------------------------------------------------------------------
+
+    _initCollections: function () {
+      var coll;
+      if (!this.collections) return;
+      for (coll in this.collections) {
+        this[coll] = new this.collections[coll]();
+        this[coll].parent = this;
+      }
+    },
+
+    // Check that all required attributes are present
+    // TODO: should this throw an error or return boolean?
+    _verifyRequired: function () {
+      var attrs = this.attributes;
+      for (var def in this.definition) {
+        if (this.definition[def].required && typeof attrs[def] === 'undefined') {
+          return false;
+        }
+      }
+      return true;
+    },
+
+    _initProperties: function () {
+      var self = this,
+        definition = this.definition = {},
+        val,
+        prop,
+        item,
+        type,
+        filler;
+
+      this.cid = _.uniqueId('model');
+
+      function addToDef(name, val, isSession) {
+        var def = definition[name] = {};
+        if (_.isString(val)) {
+          // grab our type if all we've got is a string
+          type = self._ensureValidType(val);
+          if (type) def.type = type;
+        } else {
+          type = self._ensureValidType(val[0] || val.type);
+          if (type) def.type = type;
+          if (val[1] || val.required) def.required = true;
+          // set default if defined
+          def.value = !_.isUndefined(val[2]) ? val[2] : val.default;
+          if (isSession) def.session = true;
+          if (val.setOnce) def.setOnce = true;
+        }
+      }
+
+      // loop through given properties
+      for (item in this.props) {
+        addToDef(item, this.props[item]);
+      }
+      // loop through session props
+      for (prop in this.session) {
+        addToDef(prop, this.session[prop], true);
+      }
+
+      // always add "id" as a definition or make sure it's 'setOnce'
+      if (definition.id) {
+        definition[this.idAttribute].setOnce = true;
+      } else {
+        addToDef(this.idAttribute, this.idDefinition);
+      }
+
+      // register derived properties as part of the definition
+      this._registerDerived();
+      this._createGettersSetters();
+
+      // freeze attributes used to define object
+      if (this.session) Object.freeze(this.session);
+      //if (this.derived) Object.freeze(this.derived);
+      if (this.props) Object.freeze(this.props);
+    },
+
+    // just makes friendlier errors when trying to define a new model
+    // only used when setting up original property definitions
+    _ensureValidType: function (type) {
+      return _.contains(['string', 'number', 'boolean', 'array', 'object', 'date'], type) ? type : undefined;
+    },
+
+    _validate: function () {
+      return true;
+    },
+
+    _createGettersSetters: function () {
+      var item, def, desc, self = this;
+
+      // create getters/setters based on definitions
+      for (item in this.definition) {
+        def = this.definition[item];
+        desc = {};
+        // create our setter
+        desc.set = function (def, item) {
+          return function (val, options) {
+            self.set(item, val);
+          };
+        }(def, item);
+        // create our getter
+        desc.get = function (def, attributes) {
+          return function (val) {
+            if (typeof def.value !== 'undefined') {
+              if (def.type === 'date') {
+                return new Date(def.value);
+              }
+              return def.value;
+            }
+            return;
+          };
+        }(def);
+
+        // define our property
+        this.define(item, desc);
+      }
+
+      this.defineGetter('attributes', function () {
+        var res = {};
+        for (var item in this.definition) res[item] = this[item];
+        return res;
+      });
+
+      this.defineGetter('keys', function () {
+        return Object.keys(this.attributes);
+      });
+
+      this.defineGetter('json', function () {
+        return JSON.stringify(this._getAttributes(false, true));
+      });
+
+      this.defineGetter('derived', function () {
+        var res = {};
+        for (var item in this._derived) res[item] = this._derived[item].fn.apply(this);
+        return res;
+      });
+
+      this.defineGetter('toTemplate', function () {
+        return _.extend(this._getAttributes(true), this.derived);
+      });
+    },
+
+    _getAttributes: function (includeSession, raw) {
+      var res = {};
+      for (var item in this.definition) {
+        if (!includeSession) {
+          if (!this.definition[item].session) {
+            res[item] = (raw) ? this.definition[item].value : this[item];
+          }
+        } else {
+          res[item] = (raw) ? this.definition[item].value : this[item];
+        }
+      }
+      return res;
+    },
+
+    // stores an object of arrays that specifies the derivedProperties
+    // that depend on each attribute
+    _registerDerived: function () {
+      var self = this, depList;
+      if (!this.derived) return;
+      this._derived = this.derived;
+      for (var key in this.derived) {
+        depList = this.derived[key].deps || [];
+        _.each(depList, function (dep) {
+          self._deps[dep] = _(self._deps[dep] || []).union([key]);
+        });
+
+        // defined a top-level getter for derived keys
+        this.define(key, {
+          get: _.bind(function (key) {
+            // is this a derived property we should cache?
+            if (this._derived[key].cache) {
+              // do we have it?
+              if (this._cache.hasOwnProperty(key)) {
+                return this._cache[key];
+              } else {
+                return this._cache[key] = this._derived[key].fn.apply(this);
+              }
+            } else {
+              return this._derived[key].fn.apply(this);
+            }
+          }, this, key),
+          set: _.bind(function (key) {
+            var deps = this._derived[key].deps,
+              msg = '"' + key + '" is a derived property, you can\'t set it directly.';
+            if (deps && deps.length) {
+              throw new TypeError(msg + ' It is dependent on "' + deps.join('" and "') + '".');
+            } else {
+              throw new TypeError(msg);
+            }
+          }, this, key)
+        });
+      }
+    }
+  });
+
+  // Set up inheritance for the model
+  Strict.Model.extend = extend;
+
+  // Overwrite Backbone.Model so that collections don't need to be modified in Backbone core
+  Backbone.Model = Strict.Model;
+
+}).call(this);

clientapp/modules/strictview.js

@@ -0,0 +1,245 @@
+var Backbone = require('backbone'),
+    _ = require('underscore'),
+    templates = require('templates');
+
+
+// the base view we use to build all our other views
+module.exports = Backbone.View.extend({
+    // ###handleBindings
+    // This makes it simple to bind model attributes to the view.
+    // To use it, add a `classBindings` and/or a `contentBindings` attribute
+    // to your view and call `this.handleBindings()` at the end of your view's
+    // `render` function. It's also used by `basicRender` which lets you do
+    // a complete attribute-bound views with just this:
+    //
+    //         var ProfileView = BaseView.extend({
+    //             template: 'profile',
+    //             contentBindings: {
+    //                 'name': '.name'
+    //             },
+    //             classBindings: {
+    //                 'active': ''
+    //             },
+    //             render: function () {
+    //                 this.basicRender();
+    //                 return this;
+    //             }
+    //         });
+    handleBindings: function () {
+        var self = this;
+        if (this.contentBindings) {
+            _.each(this.contentBindings, function (selector, key) {
+                var func = function () {
+                    var el = (selector.length > 0) ? self.$(selector) : $(self.el);
+                    el.html(self.model[key]);
+                };
+                self.listenTo(self.model, 'change:' + key, func);
+                func();
+            });
+        }
+        if (this.imageBindings) {
+            _.each(this.imageBindings, function (selector, key) {
+                var func = function () {
+                    var el = (selector.length > 0) ? self.$(selector) : $(self.el);
+                    el.attr('src', self.model[key]);
+                };
+                self.listenTo(self.model, 'change:' + key, func);
+                func();
+            });
+        }
+        if (this.hrefBindings) {
+            _.each(this.hrefBindings, function (selector, key) {
+                var func = function () {
+                    var el = (selector.length > 0) ? self.$(selector) : $(self.el);
+                    el.attr('href', self.model[key]);
+                };
+                self.listenTo(self.model, 'change:' + key, func);
+                func();
+            });
+        }
+        if (this.classBindings) {
+            _.each(this.classBindings, function (selector, key) {
+                var func = function () {
+                    var newValue = self.model[key],
+                        prevHash = self.model.previous(),
+                        prev = _.isFunction(prevHash) ? prevHash(key) : prevHash[key],
+                        el = (selector.length > 0) ? self.$(selector) : $(self.el);
+                    if (_.isBoolean(newValue)) {
+                        if (newValue) {
+                            el.addClass(key);
+                        } else {
+                            el.removeClass(key);
+                        }
+                    } else {
+                        if (prev) el.removeClass(prev);
+                        el.addClass(newValue);
+                    }
+                };
+                self.listenTo(self.model, 'change:' + key, func);
+                func();
+            });
+        }
+        if (this.inputBindings) {
+            _.each(this.inputBindings, function (selector, key) {
+                var func = function () {
+                    var el = (selector.length > 0) ? self.$(selector) : $(self.el);
+                    el.val(self.model[key]);
+                };
+                self.listenTo(self.model, 'change:' + key, func);
+                func();
+            });
+        }
+        return this;
+    },
+
+    // ###desist
+    // This is method we used to remove/unbind/destroy the view.
+    // By default we fade it out this seemed like a reasonable default for realtime apps.
+    // So things to just magically disappear and to give some visual indication that
+    // it's going away. You can also pass an options hash `{quick: true}` to remove immediately.
+    desist: function (opts) {
+        opts || (opts = {});
+        _.defaults(opts, {
+            quick: false,
+            animate: true,
+            speed: 300,
+            animationProps: {
+                height: 0,
+                opacity: 0
+            }
+        });
+        var el = $(this.el),
+            kill = _.bind(this.remove, this);
+        if (this.interval) {
+            clearInterval(this.interval);
+            delete this.interval;
+        }
+        if (opts.quick) {
+            kill();
+        } else if (opts.animate) {
+            el.animate(opts.animationProps, {
+                speed: opts.speed,
+                complete: kill
+            });
+        } else {
+            setTimeout(kill, opts.speed);
+        }
+    },
+
+    // ###addReferences
+    // This is a shortcut for adding reference to specific elements within your view for
+    // access later. This is avoids excessive DOM queries and gives makes it easier to update
+    // your view if your template changes. You could argue whether this is worth doing or not,
+    // but I like it.
+    // In your `render` method. Use it like so:
+    //
+    //         render: function () {
+    //             this.basicRender();
+    //             this.addReferences({
+    //                 pages: '#pages',
+    //                 chat: '#teamChat',
+    //                 nav: 'nav#views ul',
+    //                 me: '#me',
+    //                 cheatSheet: '#cheatSheet',
+    //                 omniBox: '#awesomeSauce'
+    //             });
+    //         }
+    //
+    // Then later you can access elements by reference like so: `this.$pages`, or `this.$chat`.
+    addReferences: function (hash) {
+        for (var item in hash) {
+            this['$' + item] = $(hash[item], this.el);
+        }
+    },
+
+    // ###basicRender
+    // All the usual stuff when I render a view. It assumes that the view has a `template` property
+    // that is the name of the ICanHaz template. You can also specify the template name by passing
+    // it an options hash like so: `{templateKey: 'profile'}`.
+    basicRender: function (opts) {
+        var newEl;
+        opts || (opts = {});
+        _.defaults(opts, {
+            templateFunc: (typeof this.template === 'string') ? templates[opts.templateKey] : this.template,
+            context: false
+        });
+        newEl = $(opts.templateFunc(opts.contex));
+        $(this.el).replaceWith(newEl);
+        this.setElement(newEl);
+        this.handleBindings();
+        this.delegateEvents();
+    },
+
+    // ###subViewRender
+    // This is handy for views within collections when you use `collectomatic`. Just like `basicRender` it assumes
+    // that the view either has a `template` property or that you pass it an options object with the name of the
+    // `templateKey` name of the ICanHaz template.
+    // Additionally, it handles appending or prepending the view to its parent container.
+    // It takes an options arg where you can optionally specify the `templateKey` and `placement` of the element.
+    // If your collections is stacked newest first, just use `{plaement: 'prepend'}`.
+    subViewRender: function (opts) {
+        opts || (opts = {});
+        _.defaults(opts, {
+            placement: 'append',
+            templateFunc: (typeof this.template === 'string') ? templates[opts.templateKey] : this.template
+        });
+        var data = _.isFunction(this.model.toTemplate) ? this.model.toTemplate() : this.model.toTemplate,
+            newEl = $(opts.templateFunc(opts.context))[0];
+        if (!this.el.parentNode) {
+            $(this.containerEl)[opts.placement](newEl);
+        } else {
+            $(this.el).replaceWith(newEl);
+        }
+        this.setElement(newEl);
+        this.handleBindings();
+    },
+
+    // ### bindomatic
+    // Shortcut for listening and triggering
+    bindomatic: function (object, events, handler, opts) {
+        var bound = _.bind(handler, this);
+        this.listenTo(object, events, bound);
+        if (opts && opts.trigger || opts === true) bound();
+    },
+
+    // ###collectomatic
+    // Shorthand for rendering collections and their invividual views.
+    // Just pass it the collection, and the view to use for the items in the
+    // collection. (anything in the `options` arg just gets passed through to
+    // view. Again, props to @natevw for this.
+    collectomatic: function (collection, ViewClass, options, desistOptions) {
+        var views = {},
+            self = this,
+            refreshResetHandler;
+        function addView(model, collection, opts) {
+            var matches = self.matchesFilters ? self.matchesFilters(model) : true;
+            if (matches) {
+                views[model.cid] = new ViewClass(_({model: model}).extend(options));
+                views[model.cid].parent = self;
+            }
+        }
+        this.listenTo(collection, 'add', addView);
+        this.listenTo(collection, 'remove', function (model) {
+            if (views[model.cid]) {
+                views[model.cid].desist(desistOptions);
+                delete views[model.cid];
+            }
+        });
+        this.listenTo(collection, 'move', function () {
+            _(views).each(function (view) {
+                view.desist({quick: true});
+            });
+            views = {};
+            collection.each(addView);
+        });
+        refreshResetHandler = function (opts) {
+            _(views).each(function (view) {
+                view.desist({quick: true});
+            });
+            views = {};
+            collection.each(addView);
+        };
+        this.listenTo(collection, 'refresh reset sort', refreshResetHandler);
+        refreshResetHandler();
+    }
+});

clientapp/modules/wildemitter.js

@@ -0,0 +1,124 @@
+/*
+WildEmitter.js is a slim little event emitter by @henrikjoreteg largely based 
+on @visionmedia's Emitter from UI Kit.
+
+Why? I wanted it standalone.
+
+I also wanted support for wildcard emitters like this:
+
+emitter.on('*', function (eventName, other, event, payloads) {
+    
+});
+
+emitter.on('somenamespace*', function (eventName, payloads) {
+    
+});
+
+Please note that callbacks triggered by wildcard registered events also get 
+the event name as the first argument.
+*/
+module.exports = WildEmitter;
+
+function WildEmitter() {
+    this.callbacks = {};
+}
+
+// Listen on the given `event` with `fn`. Store a group name if present.
+WildEmitter.prototype.on = function (event, groupName, fn) {
+    var hasGroup = (arguments.length === 3),
+        group = hasGroup ? arguments[1] : undefined, 
+        func = hasGroup ? arguments[2] : arguments[1];
+    func._groupName = group;
+    (this.callbacks[event] = this.callbacks[event] || []).push(func);
+    return this;
+};
+
+// Adds an `event` listener that will be invoked a single
+// time then automatically removed.
+WildEmitter.prototype.once = function (event, fn) {
+    var self = this;
+    function on() {
+        self.off(event, on);
+        fn.apply(this, arguments);
+    }
+    this.on(event, on);
+    return this;
+};
+
+// Unbinds an entire group
+WildEmitter.prototype.releaseGroup = function (groupName) {
+    var item, i, len, handlers;
+    for (item in this.callbacks) {
+        handlers = this.callbacks[item];
+        for (i = 0, len = handlers.length; i < len; i++) {
+            if (handlers[i]._groupName === groupName) {
+                //console.log('removing');
+                // remove it and shorten the array we're looping through
+                handlers.splice(i, 1);
+                i--;
+                len--;
+            }
+        }
+    }
+    return this;
+};
+
+// Remove the given callback for `event` or all
+// registered callbacks.
+WildEmitter.prototype.off = function (event, fn) {
+    var callbacks = this.callbacks[event],
+        i;
+    
+    if (!callbacks) return this;
+
+    // remove all handlers
+    if (arguments.length === 1) {
+        delete this.callbacks[event];
+        return this;
+    }
+
+    // remove specific handler
+    i = callbacks.indexOf(fn);
+    callbacks.splice(i, 1);
+    return this;
+};
+
+// Emit `event` with the given args.
+// also calls any `*` handlers
+WildEmitter.prototype.emit = function (event) {
+    var args = [].slice.call(arguments, 1),
+        callbacks = this.callbacks[event],
+        specialCallbacks = this.getWildcardCallbacks(event),
+        i,
+        len,
+        item;
+
+    if (callbacks) {
+        for (i = 0, len = callbacks.length; i < len; ++i) {
+            callbacks[i].apply(this, args);
+        }
+    }
+
+    if (specialCallbacks) {
+        for (i = 0, len = specialCallbacks.length; i < len; ++i) {
+            specialCallbacks[i].apply(this, [event].concat(args));
+        }
+    }
+
+    return this;
+};
+
+// Helper for for finding special wildcard event handlers that match the event
+WildEmitter.prototype.getWildcardCallbacks = function (eventName) {
+    var item,
+        split,
+        result = [];
+
+    for (item in this.callbacks) {
+        split = item.split('*');
+        if (item === '*' || (split.length === 2 && eventName.slice(0, split[1].length) === split[1])) {
+            result = result.concat(this.callbacks[item]);
+        }
+    }
+    return result;
+};

clientapp/templates/dialogs/enterPassword.jade

@@ -0,0 +1,6 @@
+form.password
+    h2 This room requires a password:
+    p.errorMessage
+    input.type
+    button.cancel(type="button") Cancel
+    button.go(type="submit") Join

clientapp/templates/dialogs/lockingRequiresPaid.jade

@@ -0,0 +1,5 @@
+div.modalDialog
+    p To lock the room you need to be logged in and have a <a href="/signup">conversat.io pro</a> account.
+    button.gopro Go pro!
+    button.login Login
+    button.cancel Cancel

clientapp/templates/dialogs/setPassword.jade

@@ -0,0 +1,6 @@
+form.password
+    h2 Set a password for this room:
+    p.errorMessage
+    input.type
+    button.cancel(type="button") Cancel
+    button.go(type="submit") Save

clientapp/templates/includes/link.svg

@@ -0,0 +1,38 @@
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+     width="16px" height="16px" viewBox="0 0 50 50">
+<g>
+    <path d="M46.715,28.074c-0.012-0.022-0.027-0.044-0.039-0.067c-0.439-0.807-0.982-1.538-1.615-2.17l-8.635-8.634
+        c-0.035-0.036-0.068-0.066-0.098-0.092c-1.102-1.067-2.439-1.85-3.893-2.282c1.676,1.754,2.785,3.946,3.217,6.358
+        c0.127,0.723,0.193,1.462,0.193,2.197c0,0.293-0.014,0.602-0.039,0.943l5.381,5.382c0.469,0.469,0.816,1.058,1.002,1.706
+        c0.109,0.372,0.162,0.759,0.162,1.151c0,0.434-0.064,0.862-0.197,1.273c-0.197,0.618-0.521,1.157-0.967,1.602l-3.508,3.508
+        c-0.752,0.752-1.77,1.166-2.865,1.166s-2.115-0.414-2.865-1.166l-3.346-3.344l-2.164-2.166l-3.125-3.124
+        c-0.311-0.311-0.569-0.678-0.765-1.092c-0.26-0.546-0.397-1.159-0.397-1.772c0-0.414,0.061-0.824,0.18-1.217
+        c0.011-0.035,0.024-0.07,0.038-0.105l0.021-0.057c0.051-0.144,0.098-0.261,0.148-0.368c0.029-0.062,0.06-0.123,0.092-0.184
+        c0.059-0.111,0.125-0.22,0.202-0.337l0.032-0.048c0.023-0.035,0.046-0.071,0.071-0.105c0.128-0.174,0.251-0.32,0.378-0.445
+        l1.337-1.338c-0.015-0.159-0.051-0.301-0.109-0.422c-0.056-0.118-0.125-0.219-0.206-0.299L21.213,19.4l-0.23-0.23l-1.541,1.542
+        c-0.149,0.149-0.298,0.31-0.457,0.493c-0.023,0.026-0.045,0.055-0.068,0.083l-0.05,0.061c-0.105,0.125-0.206,0.252-0.304,0.382
+        c-0.033,0.043-0.064,0.088-0.097,0.132l-0.019,0.026c-0.096,0.134-0.188,0.27-0.276,0.408l-0.024,0.036
+        c-0.021,0.033-0.042,0.066-0.063,0.099c-0.103,0.169-0.203,0.341-0.292,0.509l-0.014,0.025l-0.013,0.024
+        c-0.313,0.596-0.564,1.23-0.747,1.889c-0.064,0.234-0.116,0.45-0.158,0.659c-0.128,0.639-0.193,1.283-0.193,1.924
+        c0,0.563,0.051,1.13,0.148,1.68c0.343,1.929,1.251,3.674,2.624,5.048l1.799,1.8l2.628,2.626l4.208,4.209
+        c3.715,3.715,9.76,3.715,13.477,0l3.508-3.509c1.201-1.202,2.059-2.72,2.479-4.393c0.199-0.795,0.301-1.584,0.301-2.346
+        c0-1.506-0.361-3.01-1.045-4.349c-0.008-0.016-0.016-0.032-0.021-0.049c-0.008-0.013-0.012-0.025-0.02-0.038
+        C46.744,28.116,46.73,28.096,46.715,28.074z"/>
+    <path d="M30.398,16.544L28.6,14.745l-2.627-2.626l-4.208-4.209c-3.715-3.714-9.76-3.714-13.476,0.001L4.78,11.419
+        c-1.202,1.2-2.058,2.72-2.479,4.391C2.102,16.605,2,17.394,2,18.157c0,1.505,0.362,3.008,1.045,4.348
+        c0.008,0.015,0.016,0.033,0.022,0.049c0.006,0.013,0.011,0.026,0.019,0.039c0.011,0.021,0.023,0.042,0.037,0.065
+        c0.014,0.022,0.027,0.044,0.04,0.068c0.44,0.808,0.984,1.537,1.616,2.168l8.634,8.634c0.036,0.037,0.068,0.067,0.1,0.093
+        c1.1,1.067,2.437,1.85,3.891,2.281c-1.675-1.755-2.785-3.946-3.214-6.357c-0.129-0.72-0.196-1.46-0.196-2.197
+        c0-0.291,0.013-0.6,0.039-0.943l-5.382-5.383c-0.468-0.468-0.815-1.058-1.001-1.706c-0.108-0.372-0.163-0.757-0.163-1.15
+        c0-0.434,0.067-0.863,0.198-1.274c0.198-0.619,0.522-1.158,0.967-1.601l3.509-3.509c1.554-1.554,4.179-1.554,5.731,0l3.345,3.345
+        l2.165,2.165l3.124,3.125c0.312,0.311,0.568,0.678,0.766,1.092c0.26,0.545,0.396,1.157,0.396,1.772c0,0.415-0.061,0.824-0.18,1.217
+        c-0.012,0.036-0.023,0.071-0.037,0.107l-0.021,0.055c-0.051,0.145-0.098,0.261-0.148,0.368c-0.027,0.062-0.061,0.123-0.094,0.184
+        c-0.059,0.112-0.125,0.225-0.199,0.337l-0.031,0.044c-0.021,0.038-0.047,0.074-0.072,0.108c-0.129,0.174-0.252,0.32-0.377,0.446
+        l-1.339,1.338c0.015,0.159,0.051,0.301,0.11,0.423c0.056,0.117,0.124,0.219,0.205,0.298l3.124,3.125l0.23,0.229l1.541-1.541
+        c0.146-0.146,0.297-0.309,0.457-0.493c0.023-0.027,0.049-0.056,0.07-0.084l0.047-0.058c0.105-0.127,0.207-0.254,0.305-0.384
+        c0.039-0.052,0.076-0.104,0.113-0.157c0.098-0.135,0.189-0.271,0.279-0.408l0.029-0.046l0.055-0.089
+        c0.105-0.168,0.203-0.339,0.295-0.51l0.012-0.022l0.014-0.025c0.312-0.595,0.564-1.229,0.748-1.888
+        c0.062-0.228,0.113-0.444,0.156-0.661c0.129-0.637,0.193-1.282,0.193-1.922c0-0.564-0.051-1.13-0.148-1.68
+        C32.68,19.663,31.771,17.918,30.398,16.544z"/>
+</g>
+</svg>

clientapp/templates/includes/passwordDialog.jade

@@ -0,0 +1,6 @@
+form.password
+    h2 This room requires a password:
+    p.errorMessage
+    input.type
+    button.cancel(type="button") Cancel
+    button.go(type="submit") Join

clientapp/templates/layout.jade

@@ -0,0 +1,13 @@
+.wrap
+    header
+        .loggedOut
+            a.logIn(href="#") Log In
+        .loggedIn
+            img.avatar
+            .name
+            a(href="/logout") Log Out
+    section#pages
+    footer
+        a#ad(href='http://andbang.com', target='_blank')
+        a#andyet(href='http://andyet.com', target='_blank')
+          img(src='http://andyet.com/images/logo.png', width='40')

clientapp/templates/pages/create.jade

@@ -0,0 +1,12 @@
+section.page.create
+  a(href='/')
+    h1#logo
+      img(src='conversatio.png', height='64', width='480', alt='Conversat.io')
+  h2
+    span#title Get a room.
+    p.desc Video chat with up to 6 people.
+
+  form#createRoom
+    input#sessionInput(placeholder='Name the conversation', autofocus='autofocus')
+    button(type='submit') Let’s go!
+  p.about Requires Chrome or Firefox Nightly with peer connection enabled.<br/> conversat.io uses <a href="https://github.com/henrikjoreteg/SimpleWebRTC">the simple WebRTC library</a> from <a href="http://andyet.com">&yet</a> and so can you.

clientapp/templates/pages/talk.jade

@@ -0,0 +1,47 @@
+section.page.talk
+    a(href='/')
+        h1#logo
+          img(src='conversatio.png', height='64', width='480', alt='Conversat.io')
+    h2
+        span#title.roomName
+    h3#roomLink
+        svg(version="1.1", id="Layer_1", xmlns="http://www.w3.org/2000/svg", xmlns:xlink="http://www.w3.org/1999/xlink", x="0px", y="0px", width="16px", height="16px", viewBox="0 0 50 50")
+            g
+                path(d="M46.715,28.074c-0.012-0.022-0.027-0.044-0.039-0.067c-0.439-0.807-0.982-1.538-1.615-2.17l-8.635-8.634c-0.035-0.036-0.068-0.066-0.098-0.092c-1.102-1.067-2.439-1.85-3.893-2.282c1.676,1.754,2.785,3.946,3.217,6.358c0.127,0.723,0.193,1.462,0.193,2.197c0,0.293-0.014,0.602-0.039,0.943l5.381,5.382c0.469,0.469,0.816,1.058,1.002,1.706c0.109,0.372,0.162,0.759,0.162,1.151c0,0.434-0.064,0.862-0.197,1.273c-0.197,0.618-0.521,1.157-0.967,1.602l-3.508,3.508c-0.752,0.752-1.77,1.166-2.865,1.166s-2.115-0.414-2.865-1.166l-3.346-3.344l-2.164-2.166l-3.125-3.124c-0.311-0.311-0.569-0.678-0.765-1.092c-0.26-0.546-0.397-1.159-0.397-1.772c0-0.414,0.061-0.824,0.18-1.217c0.011-0.035,0.024-0.07,0.038-0.105l0.021-0.057c0.051-0.144,0.098-0.261,0.148-0.368c0.029-0.062,0.06-0.123,0.092-0.184c0.059-0.111,0.125-0.22,0.202-0.337l0.032-0.048c0.023-0.035,0.046-0.071,0.071-0.105c0.128-0.174,0.251-0.32,0.378-0.445l1.337-1.338c-0.015-0.159-0.051-0.301-0.109-0.422c-0.056-0.118-0.125-0.219-0.206-0.299L21.213,19.4l-0.23-0.23l-1.541,1.542c-0.149,0.149-0.298,0.31-0.457,0.493c-0.023,0.026-0.045,0.055-0.068,0.083l-0.05,0.061c-0.105,0.125-0.206,0.252-0.304,0.382c-0.033,0.043-0.064,0.088-0.097,0.132l-0.019,0.026c-0.096,0.134-0.188,0.27-0.276,0.408l-0.024,0.036c-0.021,0.033-0.042,0.066-0.063,0.099c-0.103,0.169-0.203,0.341-0.292,0.509l-0.014,0.025l-0.013,0.024c-0.313,0.596-0.564,1.23-0.747,1.889c-0.064,0.234-0.116,0.45-0.158,0.659c-0.128,0.639-0.193,1.283-0.193,1.924c0,0.563,0.051,1.13,0.148,1.68c0.343,1.929,1.251,3.674,2.624,5.048l1.799,1.8l2.628,2.626l4.208,4.209c3.715,3.715,9.76,3.715,13.477,0l3.508-3.509c1.201-1.202,2.059-2.72,2.479-4.393c0.199-0.795,0.301-1.584,0.301-2.346c0-1.506-0.361-3.01-1.045-4.349c-0.008-0.016-0.016-0.032-0.021-0.049c-0.008-0.013-0.012-0.025-0.02-0.038C46.744,28.116,46.73,28.096,46.715,28.074z")
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+        span#subTitle  #{window.location.origin + '/'}<span class="roomName"></span> <span id="roomKey"></span>
+        .lockControls
+            a.unlock(href="#") Unlock Room
+            a.lock(href="#") Lock Room
+    video#localVideo
+    .controls
+        button#shareScreen
+            span.share
+                i(class="ss-icon") windows 
+                | Share screen
+            span.unshare
+                i(class="ss-icon") windows
+                | Unshare screen
+        button#muteMicrophone
+            span.mute
+                i(class="ss-icon") volume
+                | Mute
+            span.unmute
+                i(class="ss-icon") volumehigh
+                | Unmute
+        button#pauseVideo
+            span.pause
+                i(class="ss-icon") pause  
+                | Pause
+            span.resume
+                i(class="ss-icon") play  
+                | Resume
+    #remotes
+    #game
+        aside#instructions(style="position: absolute")
+            h3 Play lander while you wait for people to join.
+            p Arrow keys control the ship
+            p <code>r</code> restarts
+            p <code>x</code> blows up your ship
+            p Have fun!
+        canvas#viewport

clientapp/templates/pages/wrapper.jade

@@ -0,0 +1 @@
+.page

dev_config.json

@@ -0,0 +1,14 @@
+{
+    "isDev": true,
+    "auth": {
+        "id": "conversat.io-dev",
+        "secret": "conversat.io-dev-secret"
+    },
+    "http": {
+        "baseUrl": "https://localhost:8000",
+        "port": 8000
+    },
+    "session": {
+        "secret": "shhhhhh don't tell anyone ok?"
+    }
+}

fakekeys/cacert.pem

@@ -0,0 +1,22 @@
+-----BEGIN CERTIFICATE-----
+MIIDpTCCAw6gAwIBAgIJAOrnl6uHMbjUMA0GCSqGSIb3DQEBBQUAMIGUMQswCQYD
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+QExxebXWQtFROfNbFeA2h5dxC+0ZDU72kA==
+-----END CERTIFICATE-----

fakekeys/certificate.pem

@@ -0,0 +1,16 @@
+-----BEGIN CERTIFICATE-----
+MIICjTCCAfYCCQC8xCdh8aBfxDANBgkqhkiG9w0BAQUFADCBijELMAkGA1UEBhMC
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+JCt3LWcZMvkkMfsk1HgyUEKat/Lrs/iaVU6TDMFa52v5
+-----END CERTIFICATE-----

fakekeys/privatekey.pem

@@ -0,0 +1,15 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIICXQIBAAKBgQDRKUxB1pLVRQ/dcUEP1p1oTIg0GoEvMPl6s7kC2Mroyovn/FaC
+zsgvwYhuwIeA6qgYoNIkSkXMQRmtfTpBvJNqM6A7jpUUmYuaUgqdrh5GZ5FGJjgA
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+mZccB/MKQMLMIhhGz/UCQQDog5KBVaMhwrw1hwZ5gDyZs2YrE75522BnAU1ajQj+
+VmTkcBwCtfnbXsWcHnYQnLlvz2Bi9ov2JncmJ5F1kiIw
+-----END RSA PRIVATE KEY-----

package.json

@@ -0,0 +1,50 @@
+{
+  "name": "conversat.io",
+  "description": "Easiest/best group video chat service on the planet.",
+  "version": "0.0.1",
+  "repository": {
+    "type": "git", 
+    "url": "git@github.com:andyet/conversat.io.git"
+  },
+  "dependencies": {
+    "express": "3.x.x",
+    "connect": "2.7.6",
+    "connect-redis": "1.4.5",
+    "getconfig": "0.0.5",
+    "andbang-express-auth": "0.0.9",
+    "yetify": "0.0.1",
+    "jade": "0.30.0",
+    "moonboots": "0.0.3",
+    "clientmodules": "0.0.5",
+    "backbone": "1.0.0",
+    "underscore": "1.4.4",
+    "strictmodel": "0.0.3",
+    "precommit-hook": "0.3.4",
+    "sound-effect-manager": "0.0.5",
+    "andlog": "0.0.3",
+    "strictview": "0.0.2",
+    "system-requirements": "0.0.2",
+    "webrtc.js": "0.0.3",
+    "semi-static": "",
+    "slugger": "0.0.1",
+    "socket.io": "0.9.14",
+    "node-uuid": "1.4.0",
+    "cookie-getter": "0.0.2",
+    "wildemitter": "0.0.3"
+  },
+  "clientmodules": [
+    "backbone", 
+    "strictmodel", 
+    "underscore", 
+    "sound-effect-manager", 
+    "andlog",
+    "strictview",
+    "slugger",
+    "cookie-getter",
+    "wildemitter"
+  ],
+  "clientmodulesDir": "clientapp/modules",
+  "scripts": {
+    "postinstall": "node node_modules/clientmodules/install.js"
+  }
+}

public/Box2d.min.js

@@ -0,0 +1,445 @@
+var Box2D={};
+(function(F,G){function K(){}if(!(Object.prototype.defineProperty instanceof Function)&&Object.prototype.__defineGetter__ instanceof Function&&Object.prototype.__defineSetter__ instanceof Function)Object.defineProperty=function(y,w,A){A.get instanceof Function&&y.__defineGetter__(w,A.get);A.set instanceof Function&&y.__defineSetter__(w,A.set)};F.inherit=function(y,w){K.prototype=w.prototype;y.prototype=new K;y.prototype.constructor=y};F.generateCallback=function(y,w){return function(){w.apply(y,arguments)}};
+F.NVector=function(y){if(y===G)y=0;for(var w=Array(y||0),A=0;A<y;++A)w[A]=0;return w};F.is=function(y,w){if(y===null)return false;if(w instanceof Function&&y instanceof w)return true;if(y.constructor.__implements!=G&&y.constructor.__implements[w])return true;return false};F.parseUInt=function(y){return Math.abs(parseInt(y))}})(Box2D);var Vector=Array,Vector_a2j_Number=Box2D.NVector;if(typeof Box2D==="undefined")Box2D={};if(typeof Box2D.Collision==="undefined")Box2D.Collision={};
+if(typeof Box2D.Collision.Shapes==="undefined")Box2D.Collision.Shapes={};if(typeof Box2D.Common==="undefined")Box2D.Common={};if(typeof Box2D.Common.Math==="undefined")Box2D.Common.Math={};if(typeof Box2D.Dynamics==="undefined")Box2D.Dynamics={};if(typeof Box2D.Dynamics.Contacts==="undefined")Box2D.Dynamics.Contacts={};if(typeof Box2D.Dynamics.Controllers==="undefined")Box2D.Dynamics.Controllers={};if(typeof Box2D.Dynamics.Joints==="undefined")Box2D.Dynamics.Joints={};
+(function(){function F(){F.b2AABB.apply(this,arguments)}function G(){G.b2Bound.apply(this,arguments)}function K(){K.b2BoundValues.apply(this,arguments);this.constructor===K&&this.b2BoundValues.apply(this,arguments)}function y(){y.b2Collision.apply(this,arguments)}function w(){w.b2ContactID.apply(this,arguments);this.constructor===w&&this.b2ContactID.apply(this,arguments)}function A(){A.b2ContactPoint.apply(this,arguments)}function U(){U.b2Distance.apply(this,arguments)}function p(){p.b2DistanceInput.apply(this,
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+O&&this.b2Simplex.apply(this,arguments)}function E(){E.b2SimplexCache.apply(this,arguments)}function R(){R.b2SimplexVertex.apply(this,arguments)}function N(){N.b2TimeOfImpact.apply(this,arguments)}function S(){S.b2TOIInput.apply(this,arguments)}function aa(){aa.b2WorldManifold.apply(this,arguments);this.constructor===aa&&this.b2WorldManifold.apply(this,arguments)}function Z(){Z.ClipVertex.apply(this,arguments)}function d(){d.Features.apply(this,arguments)}function h(){h.b2CircleShape.apply(this,arguments);
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+arguments)}function C(){C.b2ContactImpulse.apply(this,arguments)}function J(){J.b2ContactListener.apply(this,arguments)}function T(){T.b2ContactManager.apply(this,arguments);this.constructor===T&&this.b2ContactManager.apply(this,arguments)}function P(){P.b2DebugDraw.apply(this,arguments);this.constructor===P&&this.b2DebugDraw.apply(this,arguments)}function X(){X.b2DestructionListener.apply(this,arguments)}function $(){$.b2FilterData.apply(this,arguments)}function ba(){ba.b2Fixture.apply(this,arguments);
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+arguments);this.constructor===fa&&this.b2Contact.apply(this,arguments)}function ga(){ga.b2ContactConstraint.apply(this,arguments);this.constructor===ga&&this.b2ContactConstraint.apply(this,arguments)}function Ha(){Ha.b2ContactConstraintPoint.apply(this,arguments)}function Ia(){Ia.b2ContactEdge.apply(this,arguments)}function ha(){ha.b2ContactFactory.apply(this,arguments);this.constructor===ha&&this.b2ContactFactory.apply(this,arguments)}function Ja(){Ja.b2ContactRegister.apply(this,arguments)}function Ka(){Ka.b2ContactResult.apply(this,
+arguments)}function ia(){ia.b2ContactSolver.apply(this,arguments);this.constructor===ia&&this.b2ContactSolver.apply(this,arguments)}function La(){La.b2EdgeAndCircleContact.apply(this,arguments)}function ja(){ja.b2NullContact.apply(this,arguments);this.constructor===ja&&this.b2NullContact.apply(this,arguments)}function Ma(){Ma.b2PolyAndCircleContact.apply(this,arguments)}function Na(){Na.b2PolyAndEdgeContact.apply(this,arguments)}function Oa(){Oa.b2PolygonContact.apply(this,arguments)}function ka(){ka.b2PositionSolverManifold.apply(this,
+arguments);this.constructor===ka&&this.b2PositionSolverManifold.apply(this,arguments)}function Pa(){Pa.b2BuoyancyController.apply(this,arguments)}function Qa(){Qa.b2ConstantAccelController.apply(this,arguments)}function Ra(){Ra.b2ConstantForceController.apply(this,arguments)}function Sa(){Sa.b2Controller.apply(this,arguments)}function Ta(){Ta.b2ControllerEdge.apply(this,arguments)}function Ua(){Ua.b2GravityController.apply(this,arguments)}function Va(){Va.b2TensorDampingController.apply(this,arguments)}
+function la(){la.b2DistanceJoint.apply(this,arguments);this.constructor===la&&this.b2DistanceJoint.apply(this,arguments)}function ma(){ma.b2DistanceJointDef.apply(this,arguments);this.constructor===ma&&this.b2DistanceJointDef.apply(this,arguments)}function na(){na.b2FrictionJoint.apply(this,arguments);this.constructor===na&&this.b2FrictionJoint.apply(this,arguments)}function oa(){oa.b2FrictionJointDef.apply(this,arguments);this.constructor===oa&&this.b2FrictionJointDef.apply(this,arguments)}function pa(){pa.b2GearJoint.apply(this,
+arguments);this.constructor===pa&&this.b2GearJoint.apply(this,arguments)}function qa(){qa.b2GearJointDef.apply(this,arguments);this.constructor===qa&&this.b2GearJointDef.apply(this,arguments)}function Wa(){Wa.b2Jacobian.apply(this,arguments)}function ra(){ra.b2Joint.apply(this,arguments);this.constructor===ra&&this.b2Joint.apply(this,arguments)}function sa(){sa.b2JointDef.apply(this,arguments);this.constructor===sa&&this.b2JointDef.apply(this,arguments)}function Xa(){Xa.b2JointEdge.apply(this,arguments)}
+function ta(){ta.b2LineJoint.apply(this,arguments);this.constructor===ta&&this.b2LineJoint.apply(this,arguments)}function ua(){ua.b2LineJointDef.apply(this,arguments);this.constructor===ua&&this.b2LineJointDef.apply(this,arguments)}function va(){va.b2MouseJoint.apply(this,arguments);this.constructor===va&&this.b2MouseJoint.apply(this,arguments)}function wa(){wa.b2MouseJointDef.apply(this,arguments);this.constructor===wa&&this.b2MouseJointDef.apply(this,arguments)}function xa(){xa.b2PrismaticJoint.apply(this,
+arguments);this.constructor===xa&&this.b2PrismaticJoint.apply(this,arguments)}function ya(){ya.b2PrismaticJointDef.apply(this,arguments);this.constructor===ya&&this.b2PrismaticJointDef.apply(this,arguments)}function za(){za.b2PulleyJoint.apply(this,arguments);this.constructor===za&&this.b2PulleyJoint.apply(this,arguments)}function Aa(){Aa.b2PulleyJointDef.apply(this,arguments);this.constructor===Aa&&this.b2PulleyJointDef.apply(this,arguments)}function Ba(){Ba.b2RevoluteJoint.apply(this,arguments);
+this.constructor===Ba&&this.b2RevoluteJoint.apply(this,arguments)}function Ca(){Ca.b2RevoluteJointDef.apply(this,arguments);this.constructor===Ca&&this.b2RevoluteJointDef.apply(this,arguments)}function Da(){Da.b2WeldJoint.apply(this,arguments);this.constructor===Da&&this.b2WeldJoint.apply(this,arguments)}function Ea(){Ea.b2WeldJointDef.apply(this,arguments);this.constructor===Ea&&this.b2WeldJointDef.apply(this,arguments)}Box2D.Collision.IBroadPhase="Box2D.Collision.IBroadPhase";Box2D.Collision.b2AABB=
+F;Box2D.Collision.b2Bound=G;Box2D.Collision.b2BoundValues=K;Box2D.Collision.b2Collision=y;Box2D.Collision.b2ContactID=w;Box2D.Collision.b2ContactPoint=A;Box2D.Collision.b2Distance=U;Box2D.Collision.b2DistanceInput=p;Box2D.Collision.b2DistanceOutput=B;Box2D.Collision.b2DistanceProxy=Q;Box2D.Collision.b2DynamicTree=V;Box2D.Collision.b2DynamicTreeBroadPhase=M;Box2D.Collision.b2DynamicTreeNode=L;Box2D.Collision.b2DynamicTreePair=I;Box2D.Collision.b2Manifold=W;Box2D.Collision.b2ManifoldPoint=Y;Box2D.Collision.b2Point=
+k;Box2D.Collision.b2RayCastInput=z;Box2D.Collision.b2RayCastOutput=u;Box2D.Collision.b2Segment=D;Box2D.Collision.b2SeparationFunction=H;Box2D.Collision.b2Simplex=O;Box2D.Collision.b2SimplexCache=E;Box2D.Collision.b2SimplexVertex=R;Box2D.Collision.b2TimeOfImpact=N;Box2D.Collision.b2TOIInput=S;Box2D.Collision.b2WorldManifold=aa;Box2D.Collision.ClipVertex=Z;Box2D.Collision.Features=d;Box2D.Collision.Shapes.b2CircleShape=h;Box2D.Collision.Shapes.b2EdgeChainDef=l;Box2D.Collision.Shapes.b2EdgeShape=j;Box2D.Collision.Shapes.b2MassData=
+o;Box2D.Collision.Shapes.b2PolygonShape=q;Box2D.Collision.Shapes.b2Shape=n;Box2D.Common.b2internal="Box2D.Common.b2internal";Box2D.Common.b2Color=a;Box2D.Common.b2Settings=c;Box2D.Common.Math.b2Mat22=g;Box2D.Common.Math.b2Mat33=b;Box2D.Common.Math.b2Math=e;Box2D.Common.Math.b2Sweep=f;Box2D.Common.Math.b2Transform=m;Box2D.Common.Math.b2Vec2=r;Box2D.Common.Math.b2Vec3=s;Box2D.Dynamics.b2Body=v;Box2D.Dynamics.b2BodyDef=t;Box2D.Dynamics.b2ContactFilter=x;Box2D.Dynamics.b2ContactImpulse=C;Box2D.Dynamics.b2ContactListener=
+J;Box2D.Dynamics.b2ContactManager=T;Box2D.Dynamics.b2DebugDraw=P;Box2D.Dynamics.b2DestructionListener=X;Box2D.Dynamics.b2FilterData=$;Box2D.Dynamics.b2Fixture=ba;Box2D.Dynamics.b2FixtureDef=ca;Box2D.Dynamics.b2Island=da;Box2D.Dynamics.b2TimeStep=Fa;Box2D.Dynamics.b2World=ea;Box2D.Dynamics.Contacts.b2CircleContact=Ga;Box2D.Dynamics.Contacts.b2Contact=fa;Box2D.Dynamics.Contacts.b2ContactConstraint=ga;Box2D.Dynamics.Contacts.b2ContactConstraintPoint=Ha;Box2D.Dynamics.Contacts.b2ContactEdge=Ia;Box2D.Dynamics.Contacts.b2ContactFactory=
+ha;Box2D.Dynamics.Contacts.b2ContactRegister=Ja;Box2D.Dynamics.Contacts.b2ContactResult=Ka;Box2D.Dynamics.Contacts.b2ContactSolver=ia;Box2D.Dynamics.Contacts.b2EdgeAndCircleContact=La;Box2D.Dynamics.Contacts.b2NullContact=ja;Box2D.Dynamics.Contacts.b2PolyAndCircleContact=Ma;Box2D.Dynamics.Contacts.b2PolyAndEdgeContact=Na;Box2D.Dynamics.Contacts.b2PolygonContact=Oa;Box2D.Dynamics.Contacts.b2PositionSolverManifold=ka;Box2D.Dynamics.Controllers.b2BuoyancyController=Pa;Box2D.Dynamics.Controllers.b2ConstantAccelController=
+Qa;Box2D.Dynamics.Controllers.b2ConstantForceController=Ra;Box2D.Dynamics.Controllers.b2Controller=Sa;Box2D.Dynamics.Controllers.b2ControllerEdge=Ta;Box2D.Dynamics.Controllers.b2GravityController=Ua;Box2D.Dynamics.Controllers.b2TensorDampingController=Va;Box2D.Dynamics.Joints.b2DistanceJoint=la;Box2D.Dynamics.Joints.b2DistanceJointDef=ma;Box2D.Dynamics.Joints.b2FrictionJoint=na;Box2D.Dynamics.Joints.b2FrictionJointDef=oa;Box2D.Dynamics.Joints.b2GearJoint=pa;Box2D.Dynamics.Joints.b2GearJointDef=qa;
+Box2D.Dynamics.Joints.b2Jacobian=Wa;Box2D.Dynamics.Joints.b2Joint=ra;Box2D.Dynamics.Joints.b2JointDef=sa;Box2D.Dynamics.Joints.b2JointEdge=Xa;Box2D.Dynamics.Joints.b2LineJoint=ta;Box2D.Dynamics.Joints.b2LineJointDef=ua;Box2D.Dynamics.Joints.b2MouseJoint=va;Box2D.Dynamics.Joints.b2MouseJointDef=wa;Box2D.Dynamics.Joints.b2PrismaticJoint=xa;Box2D.Dynamics.Joints.b2PrismaticJointDef=ya;Box2D.Dynamics.Joints.b2PulleyJoint=za;Box2D.Dynamics.Joints.b2PulleyJointDef=Aa;Box2D.Dynamics.Joints.b2RevoluteJoint=
+Ba;Box2D.Dynamics.Joints.b2RevoluteJointDef=Ca;Box2D.Dynamics.Joints.b2WeldJoint=Da;Box2D.Dynamics.Joints.b2WeldJointDef=Ea})();Box2D.postDefs=[];
+(function(){var F=Box2D.Collision.Shapes.b2CircleShape,G=Box2D.Collision.Shapes.b2PolygonShape,K=Box2D.Collision.Shapes.b2Shape,y=Box2D.Common.b2Settings,w=Box2D.Common.Math.b2Math,A=Box2D.Common.Math.b2Sweep,U=Box2D.Common.Math.b2Transform,p=Box2D.Common.Math.b2Vec2,B=Box2D.Collision.b2AABB,Q=Box2D.Collision.b2Bound,V=Box2D.Collision.b2BoundValues,M=Box2D.Collision.b2Collision,L=Box2D.Collision.b2ContactID,I=Box2D.Collision.b2ContactPoint,W=Box2D.Collision.b2Distance,Y=Box2D.Collision.b2DistanceInput,
+k=Box2D.Collision.b2DistanceOutput,z=Box2D.Collision.b2DistanceProxy,u=Box2D.Collision.b2DynamicTree,D=Box2D.Collision.b2DynamicTreeBroadPhase,H=Box2D.Collision.b2DynamicTreeNode,O=Box2D.Collision.b2DynamicTreePair,E=Box2D.Collision.b2Manifold,R=Box2D.Collision.b2ManifoldPoint,N=Box2D.Collision.b2Point,S=Box2D.Collision.b2RayCastInput,aa=Box2D.Collision.b2RayCastOutput,Z=Box2D.Collision.b2Segment,d=Box2D.Collision.b2SeparationFunction,h=Box2D.Collision.b2Simplex,l=Box2D.Collision.b2SimplexCache,j=
+Box2D.Collision.b2SimplexVertex,o=Box2D.Collision.b2TimeOfImpact,q=Box2D.Collision.b2TOIInput,n=Box2D.Collision.b2WorldManifold,a=Box2D.Collision.ClipVertex,c=Box2D.Collision.Features,g=Box2D.Collision.IBroadPhase;B.b2AABB=function(){this.lowerBound=new p;this.upperBound=new p};B.prototype.IsValid=function(){var b=this.upperBound.y-this.lowerBound.y;return b=(b=this.upperBound.x-this.lowerBound.x>=0&&b>=0)&&this.lowerBound.IsValid()&&this.upperBound.IsValid()};B.prototype.GetCenter=function(){return new p((this.lowerBound.x+
+this.upperBound.x)/2,(this.lowerBound.y+this.upperBound.y)/2)};B.prototype.GetExtents=function(){return new p((this.upperBound.x-this.lowerBound.x)/2,(this.upperBound.y-this.lowerBound.y)/2)};B.prototype.Contains=function(b){var e=true;return e=(e=(e=(e=e&&this.lowerBound.x<=b.lowerBound.x)&&this.lowerBound.y<=b.lowerBound.y)&&b.upperBound.x<=this.upperBound.x)&&b.upperBound.y<=this.upperBound.y};B.prototype.RayCast=function(b,e){var f=-Number.MAX_VALUE,m=Number.MAX_VALUE,r=e.p1.x,s=e.p1.y,v=e.p2.x-
+e.p1.x,t=e.p2.y-e.p1.y,x=Math.abs(t),C=b.normal,J=0,T=0,P=J=0;P=0;if(Math.abs(v)<Number.MIN_VALUE){if(r<this.lowerBound.x||this.upperBound.x<r)return false}else{J=1/v;T=(this.lowerBound.x-r)*J;J=(this.upperBound.x-r)*J;P=-1;if(T>J){P=T;T=J;J=P;P=1}if(T>f){C.x=P;C.y=0;f=T}m=Math.min(m,J);if(f>m)return false}if(x<Number.MIN_VALUE){if(s<this.lowerBound.y||this.upperBound.y<s)return false}else{J=1/t;T=(this.lowerBound.y-s)*J;J=(this.upperBound.y-s)*J;P=-1;if(T>J){P=T;T=J;J=P;P=1}if(T>f){C.y=P;C.x=0;f=
+T}m=Math.min(m,J);if(f>m)return false}b.fraction=f;return true};B.prototype.TestOverlap=function(b){var e=b.lowerBound.y-this.upperBound.y,f=this.lowerBound.y-b.upperBound.y;if(b.lowerBound.x-this.upperBound.x>0||e>0)return false;if(this.lowerBound.x-b.upperBound.x>0||f>0)return false;return true};B.Combine=function(b,e){var f=new B;f.Combine(b,e);return f};B.prototype.Combine=function(b,e){this.lowerBound.x=Math.min(b.lowerBound.x,e.lowerBound.x);this.lowerBound.y=Math.min(b.lowerBound.y,e.lowerBound.y);
+this.upperBound.x=Math.max(b.upperBound.x,e.upperBound.x);this.upperBound.y=Math.max(b.upperBound.y,e.upperBound.y)};Q.b2Bound=function(){};Q.prototype.IsLower=function(){return(this.value&1)==0};Q.prototype.IsUpper=function(){return(this.value&1)==1};Q.prototype.Swap=function(b){var e=this.value,f=this.proxy,m=this.stabbingCount;this.value=b.value;this.proxy=b.proxy;this.stabbingCount=b.stabbingCount;b.value=e;b.proxy=f;b.stabbingCount=m};V.b2BoundValues=function(){};V.prototype.b2BoundValues=function(){this.lowerValues=
+new Vector_a2j_Number;this.lowerValues[0]=0;this.lowerValues[1]=0;this.upperValues=new Vector_a2j_Number;this.upperValues[0]=0;this.upperValues[1]=0};M.b2Collision=function(){};M.ClipSegmentToLine=function(b,e,f,m){if(m===undefined)m=0;var r,s=0;r=e[0];var v=r.v;r=e[1];var t=r.v,x=f.x*v.x+f.y*v.y-m;r=f.x*t.x+f.y*t.y-m;x<=0&&b[s++].Set(e[0]);r<=0&&b[s++].Set(e[1]);if(x*r<0){f=x/(x-r);r=b[s];r=r.v;r.x=v.x+f*(t.x-v.x);r.y=v.y+f*(t.y-v.y);r=b[s];r.id=(x>0?e[0]:e[1]).id;++s}return s};M.EdgeSeparation=
+function(b,e,f,m,r){if(f===undefined)f=0;parseInt(b.m_vertexCount);var s=b.m_vertices;b=b.m_normals;var v=parseInt(m.m_vertexCount),t=m.m_vertices,x,C;x=e.R;C=b[f];b=x.col1.x*C.x+x.col2.x*C.y;m=x.col1.y*C.x+x.col2.y*C.y;x=r.R;var J=x.col1.x*b+x.col1.y*m;x=x.col2.x*b+x.col2.y*m;for(var T=0,P=Number.MAX_VALUE,X=0;X<v;++X){C=t[X];C=C.x*J+C.y*x;if(C<P){P=C;T=X}}C=s[f];x=e.R;f=e.position.x+(x.col1.x*C.x+x.col2.x*C.y);e=e.position.y+(x.col1.y*C.x+x.col2.y*C.y);C=t[T];x=r.R;s=r.position.x+(x.col1.x*C.x+
+x.col2.x*C.y);r=r.position.y+(x.col1.y*C.x+x.col2.y*C.y);s-=f;r-=e;return s*b+r*m};M.FindMaxSeparation=function(b,e,f,m,r){var s=parseInt(e.m_vertexCount),v=e.m_normals,t,x;x=r.R;t=m.m_centroid;var C=r.position.x+(x.col1.x*t.x+x.col2.x*t.y),J=r.position.y+(x.col1.y*t.x+x.col2.y*t.y);x=f.R;t=e.m_centroid;C-=f.position.x+(x.col1.x*t.x+x.col2.x*t.y);J-=f.position.y+(x.col1.y*t.x+x.col2.y*t.y);x=C*f.R.col1.x+J*f.R.col1.y;J=C*f.R.col2.x+J*f.R.col2.y;C=0;for(var T=-Number.MAX_VALUE,P=0;P<s;++P){t=v[P];
+t=t.x*x+t.y*J;if(t>T){T=t;C=P}}v=M.EdgeSeparation(e,f,C,m,r);t=parseInt(C-1>=0?C-1:s-1);x=M.EdgeSeparation(e,f,t,m,r);J=parseInt(C+1<s?C+1:0);T=M.EdgeSeparation(e,f,J,m,r);var X=P=0,$=0;if(x>v&&x>T){$=-1;P=t;X=x}else if(T>v){$=1;P=J;X=T}else{b[0]=C;return v}for(;;){C=$==-1?P-1>=0?P-1:s-1:P+1<s?P+1:0;v=M.EdgeSeparation(e,f,C,m,r);if(v>X){P=C;X=v}else break}b[0]=P;return X};M.FindIncidentEdge=function(b,e,f,m,r,s){if(m===undefined)m=0;parseInt(e.m_vertexCount);var v=e.m_normals,t=parseInt(r.m_vertexCount);
+e=r.m_vertices;r=r.m_normals;var x;x=f.R;f=v[m];v=x.col1.x*f.x+x.col2.x*f.y;var C=x.col1.y*f.x+x.col2.y*f.y;x=s.R;f=x.col1.x*v+x.col1.y*C;C=x.col2.x*v+x.col2.y*C;v=f;x=0;for(var J=Number.MAX_VALUE,T=0;T<t;++T){f=r[T];f=v*f.x+C*f.y;if(f<J){J=f;x=T}}r=parseInt(x);v=parseInt(r+1<t?r+1:0);t=b[0];f=e[r];x=s.R;t.v.x=s.position.x+(x.col1.x*f.x+x.col2.x*f.y);t.v.y=s.position.y+(x.col1.y*f.x+x.col2.y*f.y);t.id.features.referenceEdge=m;t.id.features.incidentEdge=r;t.id.features.incidentVertex=0;t=b[1];f=e[v];
+x=s.R;t.v.x=s.position.x+(x.col1.x*f.x+x.col2.x*f.y);t.v.y=s.position.y+(x.col1.y*f.x+x.col2.y*f.y);t.id.features.referenceEdge=m;t.id.features.incidentEdge=v;t.id.features.incidentVertex=1};M.MakeClipPointVector=function(){var b=new Vector(2);b[0]=new a;b[1]=new a;return b};M.CollidePolygons=function(b,e,f,m,r){var s;b.m_pointCount=0;var v=e.m_radius+m.m_radius;s=0;M.s_edgeAO[0]=s;var t=M.FindMaxSeparation(M.s_edgeAO,e,f,m,r);s=M.s_edgeAO[0];if(!(t>v)){var x=0;M.s_edgeBO[0]=x;var C=M.FindMaxSeparation(M.s_edgeBO,
+m,r,e,f);x=M.s_edgeBO[0];if(!(C>v)){var J=0,T=0;if(C>0.98*t+0.0010){t=m;m=e;e=r;f=f;J=x;b.m_type=E.e_faceB;T=1}else{t=e;m=m;e=f;f=r;J=s;b.m_type=E.e_faceA;T=0}s=M.s_incidentEdge;M.FindIncidentEdge(s,t,e,J,m,f);x=parseInt(t.m_vertexCount);r=t.m_vertices;t=r[J];var P;P=J+1<x?r[parseInt(J+1)]:r[0];J=M.s_localTangent;J.Set(P.x-t.x,P.y-t.y);J.Normalize();r=M.s_localNormal;r.x=J.y;r.y=-J.x;m=M.s_planePoint;m.Set(0.5*(t.x+P.x),0.5*(t.y+P.y));C=M.s_tangent;x=e.R;C.x=x.col1.x*J.x+x.col2.x*J.y;C.y=x.col1.y*
+J.x+x.col2.y*J.y;var X=M.s_tangent2;X.x=-C.x;X.y=-C.y;J=M.s_normal;J.x=C.y;J.y=-C.x;var $=M.s_v11,ba=M.s_v12;$.x=e.position.x+(x.col1.x*t.x+x.col2.x*t.y);$.y=e.position.y+(x.col1.y*t.x+x.col2.y*t.y);ba.x=e.position.x+(x.col1.x*P.x+x.col2.x*P.y);ba.y=e.position.y+(x.col1.y*P.x+x.col2.y*P.y);e=J.x*$.x+J.y*$.y;x=C.x*ba.x+C.y*ba.y+v;P=M.s_clipPoints1;t=M.s_clipPoints2;ba=0;ba=M.ClipSegmentToLine(P,s,X,-C.x*$.x-C.y*$.y+v);if(!(ba<2)){ba=M.ClipSegmentToLine(t,P,C,x);if(!(ba<2)){b.m_localPlaneNormal.SetV(r);
+b.m_localPoint.SetV(m);for(m=r=0;m<y.b2_maxManifoldPoints;++m){s=t[m];if(J.x*s.v.x+J.y*s.v.y-e<=v){C=b.m_points[r];x=f.R;X=s.v.x-f.position.x;$=s.v.y-f.position.y;C.m_localPoint.x=X*x.col1.x+$*x.col1.y;C.m_localPoint.y=X*x.col2.x+$*x.col2.y;C.m_id.Set(s.id);C.m_id.features.flip=T;++r}}b.m_pointCount=r}}}}};M.CollideCircles=function(b,e,f,m,r){b.m_pointCount=0;var s,v;s=f.R;v=e.m_p;var t=f.position.x+(s.col1.x*v.x+s.col2.x*v.y);f=f.position.y+(s.col1.y*v.x+s.col2.y*v.y);s=r.R;v=m.m_p;t=r.position.x+
+(s.col1.x*v.x+s.col2.x*v.y)-t;r=r.position.y+(s.col1.y*v.x+s.col2.y*v.y)-f;s=e.m_radius+m.m_radius;if(!(t*t+r*r>s*s)){b.m_type=E.e_circles;b.m_localPoint.SetV(e.m_p);b.m_localPlaneNormal.SetZero();b.m_pointCount=1;b.m_points[0].m_localPoint.SetV(m.m_p);b.m_points[0].m_id.key=0}};M.CollidePolygonAndCircle=function(b,e,f,m,r){var s=b.m_pointCount=0,v=0,t,x;x=r.R;t=m.m_p;var C=r.position.y+(x.col1.y*t.x+x.col2.y*t.y);s=r.position.x+(x.col1.x*t.x+x.col2.x*t.y)-f.position.x;v=C-f.position.y;x=f.R;f=s*
+x.col1.x+v*x.col1.y;x=s*x.col2.x+v*x.col2.y;var J=0;C=-Number.MAX_VALUE;r=e.m_radius+m.m_radius;var T=parseInt(e.m_vertexCount),P=e.m_vertices;e=e.m_normals;for(var X=0;X<T;++X){t=P[X];s=f-t.x;v=x-t.y;t=e[X];s=t.x*s+t.y*v;if(s>r)return;if(s>C){C=s;J=X}}s=parseInt(J);v=parseInt(s+1<T?s+1:0);t=P[s];P=P[v];if(C<Number.MIN_VALUE){b.m_pointCount=1;b.m_type=E.e_faceA;b.m_localPlaneNormal.SetV(e[J]);b.m_localPoint.x=0.5*(t.x+P.x);b.m_localPoint.y=0.5*(t.y+P.y)}else{C=(f-P.x)*(t.x-P.x)+(x-P.y)*(t.y-P.y);
+if((f-t.x)*(P.x-t.x)+(x-t.y)*(P.y-t.y)<=0){if((f-t.x)*(f-t.x)+(x-t.y)*(x-t.y)>r*r)return;b.m_pointCount=1;b.m_type=E.e_faceA;b.m_localPlaneNormal.x=f-t.x;b.m_localPlaneNormal.y=x-t.y;b.m_localPlaneNormal.Normalize();b.m_localPoint.SetV(t)}else if(C<=0){if((f-P.x)*(f-P.x)+(x-P.y)*(x-P.y)>r*r)return;b.m_pointCount=1;b.m_type=E.e_faceA;b.m_localPlaneNormal.x=f-P.x;b.m_localPlaneNormal.y=x-P.y;b.m_localPlaneNormal.Normalize();b.m_localPoint.SetV(P)}else{J=0.5*(t.x+P.x);t=0.5*(t.y+P.y);C=(f-J)*e[s].x+
+(x-t)*e[s].y;if(C>r)return;b.m_pointCount=1;b.m_type=E.e_faceA;b.m_localPlaneNormal.x=e[s].x;b.m_localPlaneNormal.y=e[s].y;b.m_localPlaneNormal.Normalize();b.m_localPoint.Set(J,t)}}b.m_points[0].m_localPoint.SetV(m.m_p);b.m_points[0].m_id.key=0};M.TestOverlap=function(b,e){var f=e.lowerBound,m=b.upperBound,r=f.x-m.x,s=f.y-m.y;f=b.lowerBound;m=e.upperBound;var v=f.y-m.y;if(r>0||s>0)return false;if(f.x-m.x>0||v>0)return false;return true};Box2D.postDefs.push(function(){Box2D.Collision.b2Collision.s_incidentEdge=
+M.MakeClipPointVector();Box2D.Collision.b2Collision.s_clipPoints1=M.MakeClipPointVector();Box2D.Collision.b2Collision.s_clipPoints2=M.MakeClipPointVector();Box2D.Collision.b2Collision.s_edgeAO=new Vector_a2j_Number(1);Box2D.Collision.b2Collision.s_edgeBO=new Vector_a2j_Number(1);Box2D.Collision.b2Collision.s_localTangent=new p;Box2D.Collision.b2Collision.s_localNormal=new p;Box2D.Collision.b2Collision.s_planePoint=new p;Box2D.Collision.b2Collision.s_normal=new p;Box2D.Collision.b2Collision.s_tangent=
+new p;Box2D.Collision.b2Collision.s_tangent2=new p;Box2D.Collision.b2Collision.s_v11=new p;Box2D.Collision.b2Collision.s_v12=new p;Box2D.Collision.b2Collision.b2CollidePolyTempVec=new p;Box2D.Collision.b2Collision.b2_nullFeature=255});L.b2ContactID=function(){this.features=new c};L.prototype.b2ContactID=function(){this.features._m_id=this};L.prototype.Set=function(b){this.key=b._key};L.prototype.Copy=function(){var b=new L;b.key=this.key;return b};Object.defineProperty(L.prototype,"key",{enumerable:false,
+configurable:true,get:function(){return this._key}});Object.defineProperty(L.prototype,"key",{enumerable:false,configurable:true,set:function(b){if(b===undefined)b=0;this._key=b;this.features._referenceEdge=this._key&255;this.features._incidentEdge=(this._key&65280)>>8&255;this.features._incidentVertex=(this._key&16711680)>>16&255;this.features._flip=(this._key&4278190080)>>24&255}});I.b2ContactPoint=function(){this.position=new p;this.velocity=new p;this.normal=new p;this.id=new L};W.b2Distance=
+function(){};W.Distance=function(b,e,f){++W.b2_gjkCalls;var m=f.proxyA,r=f.proxyB,s=f.transformA,v=f.transformB,t=W.s_simplex;t.ReadCache(e,m,s,r,v);var x=t.m_vertices,C=W.s_saveA,J=W.s_saveB,T=0;t.GetClosestPoint().LengthSquared();for(var P=0,X,$=0;$<20;){T=t.m_count;for(P=0;P<T;P++){C[P]=x[P].indexA;J[P]=x[P].indexB}switch(t.m_count){case 1:break;case 2:t.Solve2();break;case 3:t.Solve3();break;default:y.b2Assert(false)}if(t.m_count==3)break;X=t.GetClosestPoint();X.LengthSquared();P=t.GetSearchDirection();
+if(P.LengthSquared()<Number.MIN_VALUE*Number.MIN_VALUE)break;X=x[t.m_count];X.indexA=m.GetSupport(w.MulTMV(s.R,P.GetNegative()));X.wA=w.MulX(s,m.GetVertex(X.indexA));X.indexB=r.GetSupport(w.MulTMV(v.R,P));X.wB=w.MulX(v,r.GetVertex(X.indexB));X.w=w.SubtractVV(X.wB,X.wA);++$;++W.b2_gjkIters;var ba=false;for(P=0;P<T;P++)if(X.indexA==C[P]&&X.indexB==J[P]){ba=true;break}if(ba)break;++t.m_count}W.b2_gjkMaxIters=w.Max(W.b2_gjkMaxIters,$);t.GetWitnessPoints(b.pointA,b.pointB);b.distance=w.SubtractVV(b.pointA,
+b.pointB).Length();b.iterations=$;t.WriteCache(e);if(f.useRadii){e=m.m_radius;r=r.m_radius;if(b.distance>e+r&&b.distance>Number.MIN_VALUE){b.distance-=e+r;f=w.SubtractVV(b.pointB,b.pointA);f.Normalize();b.pointA.x+=e*f.x;b.pointA.y+=e*f.y;b.pointB.x-=r*f.x;b.pointB.y-=r*f.y}else{X=new p;X.x=0.5*(b.pointA.x+b.pointB.x);X.y=0.5*(b.pointA.y+b.pointB.y);b.pointA.x=b.pointB.x=X.x;b.pointA.y=b.pointB.y=X.y;b.distance=0}}};Box2D.postDefs.push(function(){Box2D.Collision.b2Distance.s_simplex=new h;Box2D.Collision.b2Distance.s_saveA=
+new Vector_a2j_Number(3);Box2D.Collision.b2Distance.s_saveB=new Vector_a2j_Number(3)});Y.b2DistanceInput=function(){};k.b2DistanceOutput=function(){this.pointA=new p;this.pointB=new p};z.b2DistanceProxy=function(){};z.prototype.Set=function(b){switch(b.GetType()){case K.e_circleShape:b=b instanceof F?b:null;this.m_vertices=new Vector(1,true);this.m_vertices[0]=b.m_p;this.m_count=1;this.m_radius=b.m_radius;break;case K.e_polygonShape:b=b instanceof G?b:null;this.m_vertices=b.m_vertices;this.m_count=
+b.m_vertexCount;this.m_radius=b.m_radius;break;default:y.b2Assert(false)}};z.prototype.GetSupport=function(b){for(var e=0,f=this.m_vertices[0].x*b.x+this.m_vertices[0].y*b.y,m=1;m<this.m_count;++m){var r=this.m_vertices[m].x*b.x+this.m_vertices[m].y*b.y;if(r>f){e=m;f=r}}return e};z.prototype.GetSupportVertex=function(b){for(var e=0,f=this.m_vertices[0].x*b.x+this.m_vertices[0].y*b.y,m=1;m<this.m_count;++m){var r=this.m_vertices[m].x*b.x+this.m_vertices[m].y*b.y;if(r>f){e=m;f=r}}return this.m_vertices[e]};
+z.prototype.GetVertexCount=function(){return this.m_count};z.prototype.GetVertex=function(b){if(b===undefined)b=0;y.b2Assert(0<=b&&b<this.m_count);return this.m_vertices[b]};u.b2DynamicTree=function(){};u.prototype.b2DynamicTree=function(){this.m_freeList=this.m_root=null;this.m_insertionCount=this.m_path=0};u.prototype.CreateProxy=function(b,e){var f=this.AllocateNode(),m=y.b2_aabbExtension,r=y.b2_aabbExtension;f.aabb.lowerBound.x=b.lowerBound.x-m;f.aabb.lowerBound.y=b.lowerBound.y-r;f.aabb.upperBound.x=
+b.upperBound.x+m;f.aabb.upperBound.y=b.upperBound.y+r;f.userData=e;this.InsertLeaf(f);return f};u.prototype.DestroyProxy=function(b){this.RemoveLeaf(b);this.FreeNode(b)};u.prototype.MoveProxy=function(b,e,f){y.b2Assert(b.IsLeaf());if(b.aabb.Contains(e))return false;this.RemoveLeaf(b);var m=y.b2_aabbExtension+y.b2_aabbMultiplier*(f.x>0?f.x:-f.x);f=y.b2_aabbExtension+y.b2_aabbMultiplier*(f.y>0?f.y:-f.y);b.aabb.lowerBound.x=e.lowerBound.x-m;b.aabb.lowerBound.y=e.lowerBound.y-f;b.aabb.upperBound.x=e.upperBound.x+
+m;b.aabb.upperBound.y=e.upperBound.y+f;this.InsertLeaf(b);return true};u.prototype.Rebalance=function(b){if(b===undefined)b=0;if(this.m_root!=null)for(var e=0;e<b;e++){for(var f=this.m_root,m=0;f.IsLeaf()==false;){f=this.m_path>>m&1?f.child2:f.child1;m=m+1&31}++this.m_path;this.RemoveLeaf(f);this.InsertLeaf(f)}};u.prototype.GetFatAABB=function(b){return b.aabb};u.prototype.GetUserData=function(b){return b.userData};u.prototype.Query=function(b,e){if(this.m_root!=null){var f=new Vector,m=0;for(f[m++]=
+this.m_root;m>0;){var r=f[--m];if(r.aabb.TestOverlap(e))if(r.IsLeaf()){if(!b(r))break}else{f[m++]=r.child1;f[m++]=r.child2}}}};u.prototype.RayCast=function(b,e){if(this.m_root!=null){var f=e.p1,m=e.p2,r=w.SubtractVV(f,m);r.Normalize();r=w.CrossFV(1,r);var s=w.AbsV(r),v=e.maxFraction,t=new B,x=0,C=0;x=f.x+v*(m.x-f.x);C=f.y+v*(m.y-f.y);t.lowerBound.x=Math.min(f.x,x);t.lowerBound.y=Math.min(f.y,C);t.upperBound.x=Math.max(f.x,x);t.upperBound.y=Math.max(f.y,C);var J=new Vector,T=0;for(J[T++]=this.m_root;T>
+0;){v=J[--T];if(v.aabb.TestOverlap(t)!=false){x=v.aabb.GetCenter();C=v.aabb.GetExtents();if(!(Math.abs(r.x*(f.x-x.x)+r.y*(f.y-x.y))-s.x*C.x-s.y*C.y>0))if(v.IsLeaf()){x=new S;x.p1=e.p1;x.p2=e.p2;x.maxFraction=e.maxFraction;v=b(x,v);if(v==0)break;if(v>0){x=f.x+v*(m.x-f.x);C=f.y+v*(m.y-f.y);t.lowerBound.x=Math.min(f.x,x);t.lowerBound.y=Math.min(f.y,C);t.upperBound.x=Math.max(f.x,x);t.upperBound.y=Math.max(f.y,C)}}else{J[T++]=v.child1;J[T++]=v.child2}}}}};u.prototype.AllocateNode=function(){if(this.m_freeList){var b=
+this.m_freeList;this.m_freeList=b.parent;b.parent=null;b.child1=null;b.child2=null;return b}return new H};u.prototype.FreeNode=function(b){b.parent=this.m_freeList;this.m_freeList=b};u.prototype.InsertLeaf=function(b){++this.m_insertionCount;if(this.m_root==null){this.m_root=b;this.m_root.parent=null}else{var e=b.aabb.GetCenter(),f=this.m_root;if(f.IsLeaf()==false){do{var m=f.child1;f=f.child2;f=Math.abs((m.aabb.lowerBound.x+m.aabb.upperBound.x)/2-e.x)+Math.abs((m.aabb.lowerBound.y+m.aabb.upperBound.y)/
+2-e.y)<Math.abs((f.aabb.lowerBound.x+f.aabb.upperBound.x)/2-e.x)+Math.abs((f.aabb.lowerBound.y+f.aabb.upperBound.y)/2-e.y)?m:f}while(f.IsLeaf()==false)}e=f.parent;m=this.AllocateNode();m.parent=e;m.userData=null;m.aabb.Combine(b.aabb,f.aabb);if(e){if(f.parent.child1==f)e.child1=m;else e.child2=m;m.child1=f;m.child2=b;f.parent=m;b.parent=m;do{if(e.aabb.Contains(m.aabb))break;e.aabb.Combine(e.child1.aabb,e.child2.aabb);m=e;e=e.parent}while(e)}else{m.child1=f;m.child2=b;f.parent=m;this.m_root=b.parent=
+m}}};u.prototype.RemoveLeaf=function(b){if(b==this.m_root)this.m_root=null;else{var e=b.parent,f=e.parent;b=e.child1==b?e.child2:e.child1;if(f){if(f.child1==e)f.child1=b;else f.child2=b;b.parent=f;for(this.FreeNode(e);f;){e=f.aabb;f.aabb=B.Combine(f.child1.aabb,f.child2.aabb);if(e.Contains(f.aabb))break;f=f.parent}}else{this.m_root=b;b.parent=null;this.FreeNode(e)}}};D.b2DynamicTreeBroadPhase=function(){this.m_tree=new u;this.m_moveBuffer=new Vector;this.m_pairBuffer=new Vector;this.m_pairCount=0};
+D.prototype.CreateProxy=function(b,e){var f=this.m_tree.CreateProxy(b,e);++this.m_proxyCount;this.BufferMove(f);return f};D.prototype.DestroyProxy=function(b){this.UnBufferMove(b);--this.m_proxyCount;this.m_tree.DestroyProxy(b)};D.prototype.MoveProxy=function(b,e,f){this.m_tree.MoveProxy(b,e,f)&&this.BufferMove(b)};D.prototype.TestOverlap=function(b,e){var f=this.m_tree.GetFatAABB(b),m=this.m_tree.GetFatAABB(e);return f.TestOverlap(m)};D.prototype.GetUserData=function(b){return this.m_tree.GetUserData(b)};
+D.prototype.GetFatAABB=function(b){return this.m_tree.GetFatAABB(b)};D.prototype.GetProxyCount=function(){return this.m_proxyCount};D.prototype.UpdatePairs=function(b){var e=this;var f=e.m_pairCount=0,m;for(f=0;f<e.m_moveBuffer.length;++f){m=e.m_moveBuffer[f];var r=e.m_tree.GetFatAABB(m);e.m_tree.Query(function(t){if(t==m)return true;if(e.m_pairCount==e.m_pairBuffer.length)e.m_pairBuffer[e.m_pairCount]=new O;var x=e.m_pairBuffer[e.m_pairCount];x.proxyA=t<m?t:m;x.proxyB=t>=m?t:m;++e.m_pairCount;return true},
+r)}for(f=e.m_moveBuffer.length=0;f<e.m_pairCount;){r=e.m_pairBuffer[f];var s=e.m_tree.GetUserData(r.proxyA),v=e.m_tree.GetUserData(r.proxyB);b(s,v);for(++f;f<e.m_pairCount;){s=e.m_pairBuffer[f];if(s.proxyA!=r.proxyA||s.proxyB!=r.proxyB)break;++f}}};D.prototype.Query=function(b,e){this.m_tree.Query(b,e)};D.prototype.RayCast=function(b,e){this.m_tree.RayCast(b,e)};D.prototype.Validate=function(){};D.prototype.Rebalance=function(b){if(b===undefined)b=0;this.m_tree.Rebalance(b)};D.prototype.BufferMove=
+function(b){this.m_moveBuffer[this.m_moveBuffer.length]=b};D.prototype.UnBufferMove=function(b){this.m_moveBuffer.splice(parseInt(this.m_moveBuffer.indexOf(b)),1)};D.prototype.ComparePairs=function(){return 0};D.__implements={};D.__implements[g]=true;H.b2DynamicTreeNode=function(){this.aabb=new B};H.prototype.IsLeaf=function(){return this.child1==null};O.b2DynamicTreePair=function(){};E.b2Manifold=function(){this.m_pointCount=0};E.prototype.b2Manifold=function(){this.m_points=new Vector(y.b2_maxManifoldPoints);
+for(var b=0;b<y.b2_maxManifoldPoints;b++)this.m_points[b]=new R;this.m_localPlaneNormal=new p;this.m_localPoint=new p};E.prototype.Reset=function(){for(var b=0;b<y.b2_maxManifoldPoints;b++)(this.m_points[b]instanceof R?this.m_points[b]:null).Reset();this.m_localPlaneNormal.SetZero();this.m_localPoint.SetZero();this.m_pointCount=this.m_type=0};E.prototype.Set=function(b){this.m_pointCount=b.m_pointCount;for(var e=0;e<y.b2_maxManifoldPoints;e++)(this.m_points[e]instanceof R?this.m_points[e]:null).Set(b.m_points[e]);
+this.m_localPlaneNormal.SetV(b.m_localPlaneNormal);this.m_localPoint.SetV(b.m_localPoint);this.m_type=b.m_type};E.prototype.Copy=function(){var b=new E;b.Set(this);return b};Box2D.postDefs.push(function(){Box2D.Collision.b2Manifold.e_circles=1;Box2D.Collision.b2Manifold.e_faceA=2;Box2D.Collision.b2Manifold.e_faceB=4});R.b2ManifoldPoint=function(){this.m_localPoint=new p;this.m_id=new L};R.prototype.b2ManifoldPoint=function(){this.Reset()};R.prototype.Reset=function(){this.m_localPoint.SetZero();this.m_tangentImpulse=
+this.m_normalImpulse=0;this.m_id.key=0};R.prototype.Set=function(b){this.m_localPoint.SetV(b.m_localPoint);this.m_normalImpulse=b.m_normalImpulse;this.m_tangentImpulse=b.m_tangentImpulse;this.m_id.Set(b.m_id)};N.b2Point=function(){this.p=new p};N.prototype.Support=function(){return this.p};N.prototype.GetFirstVertex=function(){return this.p};S.b2RayCastInput=function(){this.p1=new p;this.p2=new p};S.prototype.b2RayCastInput=function(b,e,f){if(b===undefined)b=null;if(e===undefined)e=null;if(f===undefined)f=
+1;b&&this.p1.SetV(b);e&&this.p2.SetV(e);this.maxFraction=f};aa.b2RayCastOutput=function(){this.normal=new p};Z.b2Segment=function(){this.p1=new p;this.p2=new p};Z.prototype.TestSegment=function(b,e,f,m){if(m===undefined)m=0;var r=f.p1,s=f.p2.x-r.x,v=f.p2.y-r.y;f=this.p2.y-this.p1.y;var t=-(this.p2.x-this.p1.x),x=100*Number.MIN_VALUE,C=-(s*f+v*t);if(C>x){var J=r.x-this.p1.x,T=r.y-this.p1.y;r=J*f+T*t;if(0<=r&&r<=m*C){m=-s*T+v*J;if(-x*C<=m&&m<=C*(1+x)){r/=C;m=Math.sqrt(f*f+t*t);f/=m;t/=m;b[0]=r;e.Set(f,
+t);return true}}}return false};Z.prototype.Extend=function(b){this.ExtendForward(b);this.ExtendBackward(b)};Z.prototype.ExtendForward=function(b){var e=this.p2.x-this.p1.x,f=this.p2.y-this.p1.y;b=Math.min(e>0?(b.upperBound.x-this.p1.x)/e:e<0?(b.lowerBound.x-this.p1.x)/e:Number.POSITIVE_INFINITY,f>0?(b.upperBound.y-this.p1.y)/f:f<0?(b.lowerBound.y-this.p1.y)/f:Number.POSITIVE_INFINITY);this.p2.x=this.p1.x+e*b;this.p2.y=this.p1.y+f*b};Z.prototype.ExtendBackward=function(b){var e=-this.p2.x+this.p1.x,
+f=-this.p2.y+this.p1.y;b=Math.min(e>0?(b.upperBound.x-this.p2.x)/e:e<0?(b.lowerBound.x-this.p2.x)/e:Number.POSITIVE_INFINITY,f>0?(b.upperBound.y-this.p2.y)/f:f<0?(b.lowerBound.y-this.p2.y)/f:Number.POSITIVE_INFINITY);this.p1.x=this.p2.x+e*b;this.p1.y=this.p2.y+f*b};d.b2SeparationFunction=function(){this.m_localPoint=new p;this.m_axis=new p};d.prototype.Initialize=function(b,e,f,m,r){this.m_proxyA=e;this.m_proxyB=m;var s=parseInt(b.count);y.b2Assert(0<s&&s<3);var v,t,x,C,J=C=x=m=e=0,T=0;J=0;if(s==
+1){this.m_type=d.e_points;v=this.m_proxyA.GetVertex(b.indexA[0]);t=this.m_proxyB.GetVertex(b.indexB[0]);s=v;b=f.R;e=f.position.x+(b.col1.x*s.x+b.col2.x*s.y);m=f.position.y+(b.col1.y*s.x+b.col2.y*s.y);s=t;b=r.R;x=r.position.x+(b.col1.x*s.x+b.col2.x*s.y);C=r.position.y+(b.col1.y*s.x+b.col2.y*s.y);this.m_axis.x=x-e;this.m_axis.y=C-m;this.m_axis.Normalize()}else{if(b.indexB[0]==b.indexB[1]){this.m_type=d.e_faceA;e=this.m_proxyA.GetVertex(b.indexA[0]);m=this.m_proxyA.GetVertex(b.indexA[1]);t=this.m_proxyB.GetVertex(b.indexB[0]);
+this.m_localPoint.x=0.5*(e.x+m.x);this.m_localPoint.y=0.5*(e.y+m.y);this.m_axis=w.CrossVF(w.SubtractVV(m,e),1);this.m_axis.Normalize();s=this.m_axis;b=f.R;J=b.col1.x*s.x+b.col2.x*s.y;T=b.col1.y*s.x+b.col2.y*s.y;s=this.m_localPoint;b=f.R;e=f.position.x+(b.col1.x*s.x+b.col2.x*s.y);m=f.position.y+(b.col1.y*s.x+b.col2.y*s.y);s=t;b=r.R;x=r.position.x+(b.col1.x*s.x+b.col2.x*s.y);C=r.position.y+(b.col1.y*s.x+b.col2.y*s.y);J=(x-e)*J+(C-m)*T}else if(b.indexA[0]==b.indexA[0]){this.m_type=d.e_faceB;x=this.m_proxyB.GetVertex(b.indexB[0]);
+C=this.m_proxyB.GetVertex(b.indexB[1]);v=this.m_proxyA.GetVertex(b.indexA[0]);this.m_localPoint.x=0.5*(x.x+C.x);this.m_localPoint.y=0.5*(x.y+C.y);this.m_axis=w.CrossVF(w.SubtractVV(C,x),1);this.m_axis.Normalize();s=this.m_axis;b=r.R;J=b.col1.x*s.x+b.col2.x*s.y;T=b.col1.y*s.x+b.col2.y*s.y;s=this.m_localPoint;b=r.R;x=r.position.x+(b.col1.x*s.x+b.col2.x*s.y);C=r.position.y+(b.col1.y*s.x+b.col2.y*s.y);s=v;b=f.R;e=f.position.x+(b.col1.x*s.x+b.col2.x*s.y);m=f.position.y+(b.col1.y*s.x+b.col2.y*s.y);J=(e-
+x)*J+(m-C)*T}else{e=this.m_proxyA.GetVertex(b.indexA[0]);m=this.m_proxyA.GetVertex(b.indexA[1]);x=this.m_proxyB.GetVertex(b.indexB[0]);C=this.m_proxyB.GetVertex(b.indexB[1]);w.MulX(f,v);v=w.MulMV(f.R,w.SubtractVV(m,e));w.MulX(r,t);J=w.MulMV(r.R,w.SubtractVV(C,x));r=v.x*v.x+v.y*v.y;t=J.x*J.x+J.y*J.y;b=w.SubtractVV(J,v);f=v.x*b.x+v.y*b.y;b=J.x*b.x+J.y*b.y;v=v.x*J.x+v.y*J.y;T=r*t-v*v;J=0;if(T!=0)J=w.Clamp((v*b-f*t)/T,0,1);if((v*J+b)/t<0)J=w.Clamp((v-f)/r,0,1);v=new p;v.x=e.x+J*(m.x-e.x);v.y=e.y+J*(m.y-
+e.y);t=new p;t.x=x.x+J*(C.x-x.x);t.y=x.y+J*(C.y-x.y);if(J==0||J==1){this.m_type=d.e_faceB;this.m_axis=w.CrossVF(w.SubtractVV(C,x),1);this.m_axis.Normalize();this.m_localPoint=t}else{this.m_type=d.e_faceA;this.m_axis=w.CrossVF(w.SubtractVV(m,e),1);this.m_localPoint=v}}J<0&&this.m_axis.NegativeSelf()}};d.prototype.Evaluate=function(b,e){var f,m,r=0;switch(this.m_type){case d.e_points:f=w.MulTMV(b.R,this.m_axis);m=w.MulTMV(e.R,this.m_axis.GetNegative());f=this.m_proxyA.GetSupportVertex(f);m=this.m_proxyB.GetSupportVertex(m);
+f=w.MulX(b,f);m=w.MulX(e,m);return r=(m.x-f.x)*this.m_axis.x+(m.y-f.y)*this.m_axis.y;case d.e_faceA:r=w.MulMV(b.R,this.m_axis);f=w.MulX(b,this.m_localPoint);m=w.MulTMV(e.R,r.GetNegative());m=this.m_proxyB.GetSupportVertex(m);m=w.MulX(e,m);return r=(m.x-f.x)*r.x+(m.y-f.y)*r.y;case d.e_faceB:r=w.MulMV(e.R,this.m_axis);m=w.MulX(e,this.m_localPoint);f=w.MulTMV(b.R,r.GetNegative());f=this.m_proxyA.GetSupportVertex(f);f=w.MulX(b,f);return r=(f.x-m.x)*r.x+(f.y-m.y)*r.y;default:y.b2Assert(false);return 0}};
+Box2D.postDefs.push(function(){Box2D.Collision.b2SeparationFunction.e_points=1;Box2D.Collision.b2SeparationFunction.e_faceA=2;Box2D.Collision.b2SeparationFunction.e_faceB=4});h.b2Simplex=function(){this.m_v1=new j;this.m_v2=new j;this.m_v3=new j;this.m_vertices=new Vector(3)};h.prototype.b2Simplex=function(){this.m_vertices[0]=this.m_v1;this.m_vertices[1]=this.m_v2;this.m_vertices[2]=this.m_v3};h.prototype.ReadCache=function(b,e,f,m,r){y.b2Assert(0<=b.count&&b.count<=3);var s,v;this.m_count=b.count;
+for(var t=this.m_vertices,x=0;x<this.m_count;x++){var C=t[x];C.indexA=b.indexA[x];C.indexB=b.indexB[x];s=e.GetVertex(C.indexA);v=m.GetVertex(C.indexB);C.wA=w.MulX(f,s);C.wB=w.MulX(r,v);C.w=w.SubtractVV(C.wB,C.wA);C.a=0}if(this.m_count>1){b=b.metric;s=this.GetMetric();if(s<0.5*b||2*b<s||s<Number.MIN_VALUE)this.m_count=0}if(this.m_count==0){C=t[0];C.indexA=0;C.indexB=0;s=e.GetVertex(0);v=m.GetVertex(0);C.wA=w.MulX(f,s);C.wB=w.MulX(r,v);C.w=w.SubtractVV(C.wB,C.wA);this.m_count=1}};h.prototype.WriteCache=
+function(b){b.metric=this.GetMetric();b.count=Box2D.parseUInt(this.m_count);for(var e=this.m_vertices,f=0;f<this.m_count;f++){b.indexA[f]=Box2D.parseUInt(e[f].indexA);b.indexB[f]=Box2D.parseUInt(e[f].indexB)}};h.prototype.GetSearchDirection=function(){switch(this.m_count){case 1:return this.m_v1.w.GetNegative();case 2:var b=w.SubtractVV(this.m_v2.w,this.m_v1.w);return w.CrossVV(b,this.m_v1.w.GetNegative())>0?w.CrossFV(1,b):w.CrossVF(b,1);default:y.b2Assert(false);return new p}};h.prototype.GetClosestPoint=
+function(){switch(this.m_count){case 0:y.b2Assert(false);return new p;case 1:return this.m_v1.w;case 2:return new p(this.m_v1.a*this.m_v1.w.x+this.m_v2.a*this.m_v2.w.x,this.m_v1.a*this.m_v1.w.y+this.m_v2.a*this.m_v2.w.y);default:y.b2Assert(false);return new p}};h.prototype.GetWitnessPoints=function(b,e){switch(this.m_count){case 0:y.b2Assert(false);break;case 1:b.SetV(this.m_v1.wA);e.SetV(this.m_v1.wB);break;case 2:b.x=this.m_v1.a*this.m_v1.wA.x+this.m_v2.a*this.m_v2.wA.x;b.y=this.m_v1.a*this.m_v1.wA.y+
+this.m_v2.a*this.m_v2.wA.y;e.x=this.m_v1.a*this.m_v1.wB.x+this.m_v2.a*this.m_v2.wB.x;e.y=this.m_v1.a*this.m_v1.wB.y+this.m_v2.a*this.m_v2.wB.y;break;case 3:e.x=b.x=this.m_v1.a*this.m_v1.wA.x+this.m_v2.a*this.m_v2.wA.x+this.m_v3.a*this.m_v3.wA.x;e.y=b.y=this.m_v1.a*this.m_v1.wA.y+this.m_v2.a*this.m_v2.wA.y+this.m_v3.a*this.m_v3.wA.y;break;default:y.b2Assert(false)}};h.prototype.GetMetric=function(){switch(this.m_count){case 0:y.b2Assert(false);return 0;case 1:return 0;case 2:return w.SubtractVV(this.m_v1.w,
+this.m_v2.w).Length();case 3:return w.CrossVV(w.SubtractVV(this.m_v2.w,this.m_v1.w),w.SubtractVV(this.m_v3.w,this.m_v1.w));default:y.b2Assert(false);return 0}};h.prototype.Solve2=function(){var b=this.m_v1.w,e=this.m_v2.w,f=w.SubtractVV(e,b);b=-(b.x*f.x+b.y*f.y);if(b<=0)this.m_count=this.m_v1.a=1;else{e=e.x*f.x+e.y*f.y;if(e<=0){this.m_count=this.m_v2.a=1;this.m_v1.Set(this.m_v2)}else{f=1/(e+b);this.m_v1.a=e*f;this.m_v2.a=b*f;this.m_count=2}}};h.prototype.Solve3=function(){var b=this.m_v1.w,e=this.m_v2.w,
+f=this.m_v3.w,m=w.SubtractVV(e,b),r=w.Dot(b,m),s=w.Dot(e,m);r=-r;var v=w.SubtractVV(f,b),t=w.Dot(b,v),x=w.Dot(f,v);t=-t;var C=w.SubtractVV(f,e),J=w.Dot(e,C);C=w.Dot(f,C);J=-J;v=w.CrossVV(m,v);m=v*w.CrossVV(e,f);f=v*w.CrossVV(f,b);b=v*w.CrossVV(b,e);if(r<=0&&t<=0)this.m_count=this.m_v1.a=1;else if(s>0&&r>0&&b<=0){x=1/(s+r);this.m_v1.a=s*x;this.m_v2.a=r*x;this.m_count=2}else if(x>0&&t>0&&f<=0){s=1/(x+t);this.m_v1.a=x*s;this.m_v3.a=t*s;this.m_count=2;this.m_v2.Set(this.m_v3)}else if(s<=0&&J<=0){this.m_count=
+this.m_v2.a=1;this.m_v1.Set(this.m_v2)}else if(x<=0&&C<=0){this.m_count=this.m_v3.a=1;this.m_v1.Set(this.m_v3)}else if(C>0&&J>0&&m<=0){s=1/(C+J);this.m_v2.a=C*s;this.m_v3.a=J*s;this.m_count=2;this.m_v1.Set(this.m_v3)}else{s=1/(m+f+b);this.m_v1.a=m*s;this.m_v2.a=f*s;this.m_v3.a=b*s;this.m_count=3}};l.b2SimplexCache=function(){this.indexA=new Vector_a2j_Number(3);this.indexB=new Vector_a2j_Number(3)};j.b2SimplexVertex=function(){};j.prototype.Set=function(b){this.wA.SetV(b.wA);this.wB.SetV(b.wB);this.w.SetV(b.w);
+this.a=b.a;this.indexA=b.indexA;this.indexB=b.indexB};o.b2TimeOfImpact=function(){};o.TimeOfImpact=function(b){++o.b2_toiCalls;var e=b.proxyA,f=b.proxyB,m=b.sweepA,r=b.sweepB;y.b2Assert(m.t0==r.t0);y.b2Assert(1-m.t0>Number.MIN_VALUE);var s=e.m_radius+f.m_radius;b=b.tolerance;var v=0,t=0,x=0;o.s_cache.count=0;for(o.s_distanceInput.useRadii=false;;){m.GetTransform(o.s_xfA,v);r.GetTransform(o.s_xfB,v);o.s_distanceInput.proxyA=e;o.s_distanceInput.proxyB=f;o.s_distanceInput.transformA=o.s_xfA;o.s_distanceInput.transformB=
+o.s_xfB;W.Distance(o.s_distanceOutput,o.s_cache,o.s_distanceInput);if(o.s_distanceOutput.distance<=0){v=1;break}o.s_fcn.Initialize(o.s_cache,e,o.s_xfA,f,o.s_xfB);var C=o.s_fcn.Evaluate(o.s_xfA,o.s_xfB);if(C<=0){v=1;break}if(t==0)x=C>s?w.Max(s-b,0.75*s):w.Max(C-b,0.02*s);if(C-x<0.5*b){if(t==0){v=1;break}break}var J=v,T=v,P=1;C=C;m.GetTransform(o.s_xfA,P);r.GetTransform(o.s_xfB,P);var X=o.s_fcn.Evaluate(o.s_xfA,o.s_xfB);if(X>=x){v=1;break}for(var $=0;;){var ba=0;ba=$&1?T+(x-C)*(P-T)/(X-C):0.5*(T+P);
+m.GetTransform(o.s_xfA,ba);r.GetTransform(o.s_xfB,ba);var ca=o.s_fcn.Evaluate(o.s_xfA,o.s_xfB);if(w.Abs(ca-x)<0.025*b){J=ba;break}if(ca>x){T=ba;C=ca}else{P=ba;X=ca}++$;++o.b2_toiRootIters;if($==50)break}o.b2_toiMaxRootIters=w.Max(o.b2_toiMaxRootIters,$);if(J<(1+100*Number.MIN_VALUE)*v)break;v=J;t++;++o.b2_toiIters;if(t==1E3)break}o.b2_toiMaxIters=w.Max(o.b2_toiMaxIters,t);return v};Box2D.postDefs.push(function(){Box2D.Collision.b2TimeOfImpact.b2_toiCalls=0;Box2D.Collision.b2TimeOfImpact.b2_toiIters=
+0;Box2D.Collision.b2TimeOfImpact.b2_toiMaxIters=0;Box2D.Collision.b2TimeOfImpact.b2_toiRootIters=0;Box2D.Collision.b2TimeOfImpact.b2_toiMaxRootIters=0;Box2D.Collision.b2TimeOfImpact.s_cache=new l;Box2D.Collision.b2TimeOfImpact.s_distanceInput=new Y;Box2D.Collision.b2TimeOfImpact.s_xfA=new U;Box2D.Collision.b2TimeOfImpact.s_xfB=new U;Box2D.Collision.b2TimeOfImpact.s_fcn=new d;Box2D.Collision.b2TimeOfImpact.s_distanceOutput=new k});q.b2TOIInput=function(){this.proxyA=new z;this.proxyB=new z;this.sweepA=
+new A;this.sweepB=new A};n.b2WorldManifold=function(){this.m_normal=new p};n.prototype.b2WorldManifold=function(){this.m_points=new Vector(y.b2_maxManifoldPoints);for(var b=0;b<y.b2_maxManifoldPoints;b++)this.m_points[b]=new p};n.prototype.Initialize=function(b,e,f,m,r){if(f===undefined)f=0;if(r===undefined)r=0;if(b.m_pointCount!=0){var s=0,v,t,x=0,C=0,J=0,T=0,P=0;v=0;switch(b.m_type){case E.e_circles:t=e.R;v=b.m_localPoint;s=e.position.x+t.col1.x*v.x+t.col2.x*v.y;e=e.position.y+t.col1.y*v.x+t.col2.y*
+v.y;t=m.R;v=b.m_points[0].m_localPoint;b=m.position.x+t.col1.x*v.x+t.col2.x*v.y;m=m.position.y+t.col1.y*v.x+t.col2.y*v.y;v=b-s;t=m-e;x=v*v+t*t;if(x>Number.MIN_VALUE*Number.MIN_VALUE){x=Math.sqrt(x);this.m_normal.x=v/x;this.m_normal.y=t/x}else{this.m_normal.x=1;this.m_normal.y=0}v=e+f*this.m_normal.y;m=m-r*this.m_normal.y;this.m_points[0].x=0.5*(s+f*this.m_normal.x+(b-r*this.m_normal.x));this.m_points[0].y=0.5*(v+m);break;case E.e_faceA:t=e.R;v=b.m_localPlaneNormal;x=t.col1.x*v.x+t.col2.x*v.y;C=t.col1.y*
+v.x+t.col2.y*v.y;t=e.R;v=b.m_localPoint;J=e.position.x+t.col1.x*v.x+t.col2.x*v.y;T=e.position.y+t.col1.y*v.x+t.col2.y*v.y;this.m_normal.x=x;this.m_normal.y=C;for(s=0;s<b.m_pointCount;s++){t=m.R;v=b.m_points[s].m_localPoint;P=m.position.x+t.col1.x*v.x+t.col2.x*v.y;v=m.position.y+t.col1.y*v.x+t.col2.y*v.y;this.m_points[s].x=P+0.5*(f-(P-J)*x-(v-T)*C-r)*x;this.m_points[s].y=v+0.5*(f-(P-J)*x-(v-T)*C-r)*C}break;case E.e_faceB:t=m.R;v=b.m_localPlaneNormal;x=t.col1.x*v.x+t.col2.x*v.y;C=t.col1.y*v.x+t.col2.y*
+v.y;t=m.R;v=b.m_localPoint;J=m.position.x+t.col1.x*v.x+t.col2.x*v.y;T=m.position.y+t.col1.y*v.x+t.col2.y*v.y;this.m_normal.x=-x;this.m_normal.y=-C;for(s=0;s<b.m_pointCount;s++){t=e.R;v=b.m_points[s].m_localPoint;P=e.position.x+t.col1.x*v.x+t.col2.x*v.y;v=e.position.y+t.col1.y*v.x+t.col2.y*v.y;this.m_points[s].x=P+0.5*(r-(P-J)*x-(v-T)*C-f)*x;this.m_points[s].y=v+0.5*(r-(P-J)*x-(v-T)*C-f)*C}}}};a.ClipVertex=function(){this.v=new p;this.id=new L};a.prototype.Set=function(b){this.v.SetV(b.v);this.id.Set(b.id)};
+c.Features=function(){};Object.defineProperty(c.prototype,"referenceEdge",{enumerable:false,configurable:true,get:function(){return this._referenceEdge}});Object.defineProperty(c.prototype,"referenceEdge",{enumerable:false,configurable:true,set:function(b){if(b===undefined)b=0;this._referenceEdge=b;this._m_id._key=this._m_id._key&4294967040|this._referenceEdge&255}});Object.defineProperty(c.prototype,"incidentEdge",{enumerable:false,configurable:true,get:function(){return this._incidentEdge}});Object.defineProperty(c.prototype,
+"incidentEdge",{enumerable:false,configurable:true,set:function(b){if(b===undefined)b=0;this._incidentEdge=b;this._m_id._key=this._m_id._key&4294902015|this._incidentEdge<<8&65280}});Object.defineProperty(c.prototype,"incidentVertex",{enumerable:false,configurable:true,get:function(){return this._incidentVertex}});Object.defineProperty(c.prototype,"incidentVertex",{enumerable:false,configurable:true,set:function(b){if(b===undefined)b=0;this._incidentVertex=b;this._m_id._key=this._m_id._key&4278255615|
+this._incidentVertex<<16&16711680}});Object.defineProperty(c.prototype,"flip",{enumerable:false,configurable:true,get:function(){return this._flip}});Object.defineProperty(c.prototype,"flip",{enumerable:false,configurable:true,set:function(b){if(b===undefined)b=0;this._flip=b;this._m_id._key=this._m_id._key&16777215|this._flip<<24&4278190080}})})();
+(function(){var F=Box2D.Common.b2Settings,G=Box2D.Collision.Shapes.b2CircleShape,K=Box2D.Collision.Shapes.b2EdgeChainDef,y=Box2D.Collision.Shapes.b2EdgeShape,w=Box2D.Collision.Shapes.b2MassData,A=Box2D.Collision.Shapes.b2PolygonShape,U=Box2D.Collision.Shapes.b2Shape,p=Box2D.Common.Math.b2Mat22,B=Box2D.Common.Math.b2Math,Q=Box2D.Common.Math.b2Transform,V=Box2D.Common.Math.b2Vec2,M=Box2D.Collision.b2Distance,L=Box2D.Collision.b2DistanceInput,I=Box2D.Collision.b2DistanceOutput,W=Box2D.Collision.b2DistanceProxy,
+Y=Box2D.Collision.b2SimplexCache;Box2D.inherit(G,Box2D.Collision.Shapes.b2Shape);G.prototype.__super=Box2D.Collision.Shapes.b2Shape.prototype;G.b2CircleShape=function(){Box2D.Collision.Shapes.b2Shape.b2Shape.apply(this,arguments);this.m_p=new V};G.prototype.Copy=function(){var k=new G;k.Set(this);return k};G.prototype.Set=function(k){this.__super.Set.call(this,k);if(Box2D.is(k,G))this.m_p.SetV((k instanceof G?k:null).m_p)};G.prototype.TestPoint=function(k,z){var u=k.R,D=k.position.x+(u.col1.x*this.m_p.x+
+u.col2.x*this.m_p.y);u=k.position.y+(u.col1.y*this.m_p.x+u.col2.y*this.m_p.y);D=z.x-D;u=z.y-u;return D*D+u*u<=this.m_radius*this.m_radius};G.prototype.RayCast=function(k,z,u){var D=u.R,H=z.p1.x-(u.position.x+(D.col1.x*this.m_p.x+D.col2.x*this.m_p.y));u=z.p1.y-(u.position.y+(D.col1.y*this.m_p.x+D.col2.y*this.m_p.y));D=z.p2.x-z.p1.x;var O=z.p2.y-z.p1.y,E=H*D+u*O,R=D*D+O*O,N=E*E-R*(H*H+u*u-this.m_radius*this.m_radius);if(N<0||R<Number.MIN_VALUE)return false;E=-(E+Math.sqrt(N));if(0<=E&&E<=z.maxFraction*
+R){E/=R;k.fraction=E;k.normal.x=H+E*D;k.normal.y=u+E*O;k.normal.Normalize();return true}return false};G.prototype.ComputeAABB=function(k,z){var u=z.R,D=z.position.x+(u.col1.x*this.m_p.x+u.col2.x*this.m_p.y);u=z.position.y+(u.col1.y*this.m_p.x+u.col2.y*this.m_p.y);k.lowerBound.Set(D-this.m_radius,u-this.m_radius);k.upperBound.Set(D+this.m_radius,u+this.m_radius)};G.prototype.ComputeMass=function(k,z){if(z===undefined)z=0;k.mass=z*F.b2_pi*this.m_radius*this.m_radius;k.center.SetV(this.m_p);k.I=k.mass*
+(0.5*this.m_radius*this.m_radius+(this.m_p.x*this.m_p.x+this.m_p.y*this.m_p.y))};G.prototype.ComputeSubmergedArea=function(k,z,u,D){if(z===undefined)z=0;u=B.MulX(u,this.m_p);var H=-(B.Dot(k,u)-z);if(H<-this.m_radius+Number.MIN_VALUE)return 0;if(H>this.m_radius){D.SetV(u);return Math.PI*this.m_radius*this.m_radius}z=this.m_radius*this.m_radius;var O=H*H;H=z*(Math.asin(H/this.m_radius)+Math.PI/2)+H*Math.sqrt(z-O);z=-2/3*Math.pow(z-O,1.5)/H;D.x=u.x+k.x*z;D.y=u.y+k.y*z;return H};G.prototype.GetLocalPosition=
+function(){return this.m_p};G.prototype.SetLocalPosition=function(k){this.m_p.SetV(k)};G.prototype.GetRadius=function(){return this.m_radius};G.prototype.SetRadius=function(k){if(k===undefined)k=0;this.m_radius=k};G.prototype.b2CircleShape=function(k){if(k===undefined)k=0;this.__super.b2Shape.call(this);this.m_type=U.e_circleShape;this.m_radius=k};K.b2EdgeChainDef=function(){};K.prototype.b2EdgeChainDef=function(){this.vertexCount=0;this.isALoop=true;this.vertices=[]};Box2D.inherit(y,Box2D.Collision.Shapes.b2Shape);
+y.prototype.__super=Box2D.Collision.Shapes.b2Shape.prototype;y.b2EdgeShape=function(){Box2D.Collision.Shapes.b2Shape.b2Shape.apply(this,arguments);this.s_supportVec=new V;this.m_v1=new V;this.m_v2=new V;this.m_coreV1=new V;this.m_coreV2=new V;this.m_normal=new V;this.m_direction=new V;this.m_cornerDir1=new V;this.m_cornerDir2=new V};y.prototype.TestPoint=function(){return false};y.prototype.RayCast=function(k,z,u){var D,H=z.p2.x-z.p1.x,O=z.p2.y-z.p1.y;D=u.R;var E=u.position.x+(D.col1.x*this.m_v1.x+
+D.col2.x*this.m_v1.y),R=u.position.y+(D.col1.y*this.m_v1.x+D.col2.y*this.m_v1.y),N=u.position.y+(D.col1.y*this.m_v2.x+D.col2.y*this.m_v2.y)-R;u=-(u.position.x+(D.col1.x*this.m_v2.x+D.col2.x*this.m_v2.y)-E);D=100*Number.MIN_VALUE;var S=-(H*N+O*u);if(S>D){E=z.p1.x-E;var aa=z.p1.y-R;R=E*N+aa*u;if(0<=R&&R<=z.maxFraction*S){z=-H*aa+O*E;if(-D*S<=z&&z<=S*(1+D)){R/=S;k.fraction=R;z=Math.sqrt(N*N+u*u);k.normal.x=N/z;k.normal.y=u/z;return true}}}return false};y.prototype.ComputeAABB=function(k,z){var u=z.R,
+D=z.position.x+(u.col1.x*this.m_v1.x+u.col2.x*this.m_v1.y),H=z.position.y+(u.col1.y*this.m_v1.x+u.col2.y*this.m_v1.y),O=z.position.x+(u.col1.x*this.m_v2.x+u.col2.x*this.m_v2.y);u=z.position.y+(u.col1.y*this.m_v2.x+u.col2.y*this.m_v2.y);if(D<O){k.lowerBound.x=D;k.upperBound.x=O}else{k.lowerBound.x=O;k.upperBound.x=D}if(H<u){k.lowerBound.y=H;k.upperBound.y=u}else{k.lowerBound.y=u;k.upperBound.y=H}};y.prototype.ComputeMass=function(k){k.mass=0;k.center.SetV(this.m_v1);k.I=0};y.prototype.ComputeSubmergedArea=
+function(k,z,u,D){if(z===undefined)z=0;var H=new V(k.x*z,k.y*z),O=B.MulX(u,this.m_v1);u=B.MulX(u,this.m_v2);var E=B.Dot(k,O)-z;k=B.Dot(k,u)-z;if(E>0)if(k>0)return 0;else{O.x=-k/(E-k)*O.x+E/(E-k)*u.x;O.y=-k/(E-k)*O.y+E/(E-k)*u.y}else if(k>0){u.x=-k/(E-k)*O.x+E/(E-k)*u.x;u.y=-k/(E-k)*O.y+E/(E-k)*u.y}D.x=(H.x+O.x+u.x)/3;D.y=(H.y+O.y+u.y)/3;return 0.5*((O.x-H.x)*(u.y-H.y)-(O.y-H.y)*(u.x-H.x))};y.prototype.GetLength=function(){return this.m_length};y.prototype.GetVertex1=function(){return this.m_v1};y.prototype.GetVertex2=
+function(){return this.m_v2};y.prototype.GetCoreVertex1=function(){return this.m_coreV1};y.prototype.GetCoreVertex2=function(){return this.m_coreV2};y.prototype.GetNormalVector=function(){return this.m_normal};y.prototype.GetDirectionVector=function(){return this.m_direction};y.prototype.GetCorner1Vector=function(){return this.m_cornerDir1};y.prototype.GetCorner2Vector=function(){return this.m_cornerDir2};y.prototype.Corner1IsConvex=function(){return this.m_cornerConvex1};y.prototype.Corner2IsConvex=
+function(){return this.m_cornerConvex2};y.prototype.GetFirstVertex=function(k){var z=k.R;return new V(k.position.x+(z.col1.x*this.m_coreV1.x+z.col2.x*this.m_coreV1.y),k.position.y+(z.col1.y*this.m_coreV1.x+z.col2.y*this.m_coreV1.y))};y.prototype.GetNextEdge=function(){return this.m_nextEdge};y.prototype.GetPrevEdge=function(){return this.m_prevEdge};y.prototype.Support=function(k,z,u){if(z===undefined)z=0;if(u===undefined)u=0;var D=k.R,H=k.position.x+(D.col1.x*this.m_coreV1.x+D.col2.x*this.m_coreV1.y),
+O=k.position.y+(D.col1.y*this.m_coreV1.x+D.col2.y*this.m_coreV1.y),E=k.position.x+(D.col1.x*this.m_coreV2.x+D.col2.x*this.m_coreV2.y);k=k.position.y+(D.col1.y*this.m_coreV2.x+D.col2.y*this.m_coreV2.y);if(H*z+O*u>E*z+k*u){this.s_supportVec.x=H;this.s_supportVec.y=O}else{this.s_supportVec.x=E;this.s_supportVec.y=k}return this.s_supportVec};y.prototype.b2EdgeShape=function(k,z){this.__super.b2Shape.call(this);this.m_type=U.e_edgeShape;this.m_nextEdge=this.m_prevEdge=null;this.m_v1=k;this.m_v2=z;this.m_direction.Set(this.m_v2.x-
+this.m_v1.x,this.m_v2.y-this.m_v1.y);this.m_length=this.m_direction.Normalize();this.m_normal.Set(this.m_direction.y,-this.m_direction.x);this.m_coreV1.Set(-F.b2_toiSlop*(this.m_normal.x-this.m_direction.x)+this.m_v1.x,-F.b2_toiSlop*(this.m_normal.y-this.m_direction.y)+this.m_v1.y);this.m_coreV2.Set(-F.b2_toiSlop*(this.m_normal.x+this.m_direction.x)+this.m_v2.x,-F.b2_toiSlop*(this.m_normal.y+this.m_direction.y)+this.m_v2.y);this.m_cornerDir1=this.m_normal;this.m_cornerDir2.Set(-this.m_normal.x,-this.m_normal.y)};
+y.prototype.SetPrevEdge=function(k,z,u,D){this.m_prevEdge=k;this.m_coreV1=z;this.m_cornerDir1=u;this.m_cornerConvex1=D};y.prototype.SetNextEdge=function(k,z,u,D){this.m_nextEdge=k;this.m_coreV2=z;this.m_cornerDir2=u;this.m_cornerConvex2=D};w.b2MassData=function(){this.mass=0;this.center=new V(0,0);this.I=0};Box2D.inherit(A,Box2D.Collision.Shapes.b2Shape);A.prototype.__super=Box2D.Collision.Shapes.b2Shape.prototype;A.b2PolygonShape=function(){Box2D.Collision.Shapes.b2Shape.b2Shape.apply(this,arguments)};
+A.prototype.Copy=function(){var k=new A;k.Set(this);return k};A.prototype.Set=function(k){this.__super.Set.call(this,k);if(Box2D.is(k,A)){k=k instanceof A?k:null;this.m_centroid.SetV(k.m_centroid);this.m_vertexCount=k.m_vertexCount;this.Reserve(this.m_vertexCount);for(var z=0;z<this.m_vertexCount;z++){this.m_vertices[z].SetV(k.m_vertices[z]);this.m_normals[z].SetV(k.m_normals[z])}}};A.prototype.SetAsArray=function(k,z){if(z===undefined)z=0;var u=new Vector,D=0,H;for(D=0;D<k.length;++D){H=k[D];u.push(H)}this.SetAsVector(u,
+z)};A.AsArray=function(k,z){if(z===undefined)z=0;var u=new A;u.SetAsArray(k,z);return u};A.prototype.SetAsVector=function(k,z){if(z===undefined)z=0;if(z==0)z=k.length;F.b2Assert(2<=z);this.m_vertexCount=z;this.Reserve(z);var u=0;for(u=0;u<this.m_vertexCount;u++)this.m_vertices[u].SetV(k[u]);for(u=0;u<this.m_vertexCount;++u){var D=parseInt(u),H=parseInt(u+1<this.m_vertexCount?u+1:0);D=B.SubtractVV(this.m_vertices[H],this.m_vertices[D]);F.b2Assert(D.LengthSquared()>Number.MIN_VALUE);this.m_normals[u].SetV(B.CrossVF(D,
+1));this.m_normals[u].Normalize()}this.m_centroid=A.ComputeCentroid(this.m_vertices,this.m_vertexCount)};A.AsVector=function(k,z){if(z===undefined)z=0;var u=new A;u.SetAsVector(k,z);return u};A.prototype.SetAsBox=function(k,z){if(k===undefined)k=0;if(z===undefined)z=0;this.m_vertexCount=4;this.Reserve(4);this.m_vertices[0].Set(-k,-z);this.m_vertices[1].Set(k,-z);this.m_vertices[2].Set(k,z);this.m_vertices[3].Set(-k,z);this.m_normals[0].Set(0,-1);this.m_normals[1].Set(1,0);this.m_normals[2].Set(0,
+1);this.m_normals[3].Set(-1,0);this.m_centroid.SetZero()};A.AsBox=function(k,z){if(k===undefined)k=0;if(z===undefined)z=0;var u=new A;u.SetAsBox(k,z);return u};A.prototype.SetAsOrientedBox=function(k,z,u,D){if(k===undefined)k=0;if(z===undefined)z=0;if(u===undefined)u=null;if(D===undefined)D=0;this.m_vertexCount=4;this.Reserve(4);this.m_vertices[0].Set(-k,-z);this.m_vertices[1].Set(k,-z);this.m_vertices[2].Set(k,z);this.m_vertices[3].Set(-k,z);this.m_normals[0].Set(0,-1);this.m_normals[1].Set(1,0);
+this.m_normals[2].Set(0,1);this.m_normals[3].Set(-1,0);this.m_centroid=u;k=new Q;k.position=u;k.R.Set(D);for(u=0;u<this.m_vertexCount;++u){this.m_vertices[u]=B.MulX(k,this.m_vertices[u]);this.m_normals[u]=B.MulMV(k.R,this.m_normals[u])}};A.AsOrientedBox=function(k,z,u,D){if(k===undefined)k=0;if(z===undefined)z=0;if(u===undefined)u=null;if(D===undefined)D=0;var H=new A;H.SetAsOrientedBox(k,z,u,D);return H};A.prototype.SetAsEdge=function(k,z){this.m_vertexCount=2;this.Reserve(2);this.m_vertices[0].SetV(k);
+this.m_vertices[1].SetV(z);this.m_centroid.x=0.5*(k.x+z.x);this.m_centroid.y=0.5*(k.y+z.y);this.m_normals[0]=B.CrossVF(B.SubtractVV(z,k),1);this.m_normals[0].Normalize();this.m_normals[1].x=-this.m_normals[0].x;this.m_normals[1].y=-this.m_normals[0].y};A.AsEdge=function(k,z){var u=new A;u.SetAsEdge(k,z);return u};A.prototype.TestPoint=function(k,z){var u;u=k.R;for(var D=z.x-k.position.x,H=z.y-k.position.y,O=D*u.col1.x+H*u.col1.y,E=D*u.col2.x+H*u.col2.y,R=0;R<this.m_vertexCount;++R){u=this.m_vertices[R];
+D=O-u.x;H=E-u.y;u=this.m_normals[R];if(u.x*D+u.y*H>0)return false}return true};A.prototype.RayCast=function(k,z,u){var D=0,H=z.maxFraction,O=0,E=0,R,N;O=z.p1.x-u.position.x;E=z.p1.y-u.position.y;R=u.R;var S=O*R.col1.x+E*R.col1.y,aa=O*R.col2.x+E*R.col2.y;O=z.p2.x-u.position.x;E=z.p2.y-u.position.y;R=u.R;z=O*R.col1.x+E*R.col1.y-S;R=O*R.col2.x+E*R.col2.y-aa;for(var Z=parseInt(-1),d=0;d<this.m_vertexCount;++d){N=this.m_vertices[d];O=N.x-S;E=N.y-aa;N=this.m_normals[d];O=N.x*O+N.y*E;E=N.x*z+N.y*R;if(E==
+0){if(O<0)return false}else if(E<0&&O<D*E){D=O/E;Z=d}else if(E>0&&O<H*E)H=O/E;if(H<D-Number.MIN_VALUE)return false}if(Z>=0){k.fraction=D;R=u.R;N=this.m_normals[Z];k.normal.x=R.col1.x*N.x+R.col2.x*N.y;k.normal.y=R.col1.y*N.x+R.col2.y*N.y;return true}return false};A.prototype.ComputeAABB=function(k,z){for(var u=z.R,D=this.m_vertices[0],H=z.position.x+(u.col1.x*D.x+u.col2.x*D.y),O=z.position.y+(u.col1.y*D.x+u.col2.y*D.y),E=H,R=O,N=1;N<this.m_vertexCount;++N){D=this.m_vertices[N];var S=z.position.x+(u.col1.x*
+D.x+u.col2.x*D.y);D=z.position.y+(u.col1.y*D.x+u.col2.y*D.y);H=H<S?H:S;O=O<D?O:D;E=E>S?E:S;R=R>D?R:D}k.lowerBound.x=H-this.m_radius;k.lowerBound.y=O-this.m_radius;k.upperBound.x=E+this.m_radius;k.upperBound.y=R+this.m_radius};A.prototype.ComputeMass=function(k,z){if(z===undefined)z=0;if(this.m_vertexCount==2){k.center.x=0.5*(this.m_vertices[0].x+this.m_vertices[1].x);k.center.y=0.5*(this.m_vertices[0].y+this.m_vertices[1].y);k.mass=0;k.I=0}else{for(var u=0,D=0,H=0,O=0,E=1/3,R=0;R<this.m_vertexCount;++R){var N=
+this.m_vertices[R],S=R+1<this.m_vertexCount?this.m_vertices[parseInt(R+1)]:this.m_vertices[0],aa=N.x-0,Z=N.y-0,d=S.x-0,h=S.y-0,l=aa*h-Z*d,j=0.5*l;H+=j;u+=j*E*(0+N.x+S.x);D+=j*E*(0+N.y+S.y);N=aa;Z=Z;d=d;h=h;O+=l*(E*(0.25*(N*N+d*N+d*d)+(0*N+0*d))+0+(E*(0.25*(Z*Z+h*Z+h*h)+(0*Z+0*h))+0))}k.mass=z*H;u*=1/H;D*=1/H;k.center.Set(u,D);k.I=z*O}};A.prototype.ComputeSubmergedArea=function(k,z,u,D){if(z===undefined)z=0;var H=B.MulTMV(u.R,k),O=z-B.Dot(k,u.position),E=new Vector_a2j_Number,R=0,N=parseInt(-1);z=
+parseInt(-1);var S=false;for(k=k=0;k<this.m_vertexCount;++k){E[k]=B.Dot(H,this.m_vertices[k])-O;var aa=E[k]<-Number.MIN_VALUE;if(k>0)if(aa){if(!S){N=k-1;R++}}else if(S){z=k-1;R++}S=aa}switch(R){case 0:if(S){k=new w;this.ComputeMass(k,1);D.SetV(B.MulX(u,k.center));return k.mass}else return 0;case 1:if(N==-1)N=this.m_vertexCount-1;else z=this.m_vertexCount-1}k=parseInt((N+1)%this.m_vertexCount);H=parseInt((z+1)%this.m_vertexCount);O=(0-E[N])/(E[k]-E[N]);E=(0-E[z])/(E[H]-E[z]);N=new V(this.m_vertices[N].x*
+(1-O)+this.m_vertices[k].x*O,this.m_vertices[N].y*(1-O)+this.m_vertices[k].y*O);z=new V(this.m_vertices[z].x*(1-E)+this.m_vertices[H].x*E,this.m_vertices[z].y*(1-E)+this.m_vertices[H].y*E);E=0;O=new V;R=this.m_vertices[k];for(k=k;k!=H;){k=(k+1)%this.m_vertexCount;S=k==H?z:this.m_vertices[k];aa=0.5*((R.x-N.x)*(S.y-N.y)-(R.y-N.y)*(S.x-N.x));E+=aa;O.x+=aa*(N.x+R.x+S.x)/3;O.y+=aa*(N.y+R.y+S.y)/3;R=S}O.Multiply(1/E);D.SetV(B.MulX(u,O));return E};A.prototype.GetVertexCount=function(){return this.m_vertexCount};
+A.prototype.GetVertices=function(){return this.m_vertices};A.prototype.GetNormals=function(){return this.m_normals};A.prototype.GetSupport=function(k){for(var z=0,u=this.m_vertices[0].x*k.x+this.m_vertices[0].y*k.y,D=1;D<this.m_vertexCount;++D){var H=this.m_vertices[D].x*k.x+this.m_vertices[D].y*k.y;if(H>u){z=D;u=H}}return z};A.prototype.GetSupportVertex=function(k){for(var z=0,u=this.m_vertices[0].x*k.x+this.m_vertices[0].y*k.y,D=1;D<this.m_vertexCount;++D){var H=this.m_vertices[D].x*k.x+this.m_vertices[D].y*
+k.y;if(H>u){z=D;u=H}}return this.m_vertices[z]};A.prototype.Validate=function(){return false};A.prototype.b2PolygonShape=function(){this.__super.b2Shape.call(this);this.m_type=U.e_polygonShape;this.m_centroid=new V;this.m_vertices=new Vector;this.m_normals=new Vector};A.prototype.Reserve=function(k){if(k===undefined)k=0;for(var z=parseInt(this.m_vertices.length);z<k;z++){this.m_vertices[z]=new V;this.m_normals[z]=new V}};A.ComputeCentroid=function(k,z){if(z===undefined)z=0;for(var u=new V,D=0,H=1/
+3,O=0;O<z;++O){var E=k[O],R=O+1<z?k[parseInt(O+1)]:k[0],N=0.5*((E.x-0)*(R.y-0)-(E.y-0)*(R.x-0));D+=N;u.x+=N*H*(0+E.x+R.x);u.y+=N*H*(0+E.y+R.y)}u.x*=1/D;u.y*=1/D;return u};A.ComputeOBB=function(k,z,u){if(u===undefined)u=0;var D=0,H=new Vector(u+1);for(D=0;D<u;++D)H[D]=z[D];H[u]=H[0];z=Number.MAX_VALUE;for(D=1;D<=u;++D){var O=H[parseInt(D-1)],E=H[D].x-O.x,R=H[D].y-O.y,N=Math.sqrt(E*E+R*R);E/=N;R/=N;for(var S=-R,aa=E,Z=N=Number.MAX_VALUE,d=-Number.MAX_VALUE,h=-Number.MAX_VALUE,l=0;l<u;++l){var j=H[l].x-
+O.x,o=H[l].y-O.y,q=E*j+R*o;j=S*j+aa*o;if(q<N)N=q;if(j<Z)Z=j;if(q>d)d=q;if(j>h)h=j}l=(d-N)*(h-Z);if(l<0.95*z){z=l;k.R.col1.x=E;k.R.col1.y=R;k.R.col2.x=S;k.R.col2.y=aa;E=0.5*(N+d);R=0.5*(Z+h);S=k.R;k.center.x=O.x+(S.col1.x*E+S.col2.x*R);k.center.y=O.y+(S.col1.y*E+S.col2.y*R);k.extents.x=0.5*(d-N);k.extents.y=0.5*(h-Z)}}};Box2D.postDefs.push(function(){Box2D.Collision.Shapes.b2PolygonShape.s_mat=new p});U.b2Shape=function(){};U.prototype.Copy=function(){return null};U.prototype.Set=function(k){this.m_radius=
+k.m_radius};U.prototype.GetType=function(){return this.m_type};U.prototype.TestPoint=function(){return false};U.prototype.RayCast=function(){return false};U.prototype.ComputeAABB=function(){};U.prototype.ComputeMass=function(){};U.prototype.ComputeSubmergedArea=function(){return 0};U.TestOverlap=function(k,z,u,D){var H=new L;H.proxyA=new W;H.proxyA.Set(k);H.proxyB=new W;H.proxyB.Set(u);H.transformA=z;H.transformB=D;H.useRadii=true;k=new Y;k.count=0;z=new I;M.Distance(z,k,H);return z.distance<10*Number.MIN_VALUE};
+U.prototype.b2Shape=function(){this.m_type=U.e_unknownShape;this.m_radius=F.b2_linearSlop};Box2D.postDefs.push(function(){Box2D.Collision.Shapes.b2Shape.e_unknownShape=parseInt(-1);Box2D.Collision.Shapes.b2Shape.e_circleShape=0;Box2D.Collision.Shapes.b2Shape.e_polygonShape=1;Box2D.Collision.Shapes.b2Shape.e_edgeShape=2;Box2D.Collision.Shapes.b2Shape.e_shapeTypeCount=3;Box2D.Collision.Shapes.b2Shape.e_hitCollide=1;Box2D.Collision.Shapes.b2Shape.e_missCollide=0;Box2D.Collision.Shapes.b2Shape.e_startsInsideCollide=
+parseInt(-1)})})();
+(function(){var F=Box2D.Common.b2Color,G=Box2D.Common.b2Settings,K=Box2D.Common.Math.b2Math;F.b2Color=function(){this._b=this._g=this._r=0};F.prototype.b2Color=function(y,w,A){if(y===undefined)y=0;if(w===undefined)w=0;if(A===undefined)A=0;this._r=Box2D.parseUInt(255*K.Clamp(y,0,1));this._g=Box2D.parseUInt(255*K.Clamp(w,0,1));this._b=Box2D.parseUInt(255*K.Clamp(A,0,1))};F.prototype.Set=function(y,w,A){if(y===undefined)y=0;if(w===undefined)w=0;if(A===undefined)A=0;this._r=Box2D.parseUInt(255*K.Clamp(y,
+0,1));this._g=Box2D.parseUInt(255*K.Clamp(w,0,1));this._b=Box2D.parseUInt(255*K.Clamp(A,0,1))};Object.defineProperty(F.prototype,"r",{enumerable:false,configurable:true,set:function(y){if(y===undefined)y=0;this._r=Box2D.parseUInt(255*K.Clamp(y,0,1))}});Object.defineProperty(F.prototype,"g",{enumerable:false,configurable:true,set:function(y){if(y===undefined)y=0;this._g=Box2D.parseUInt(255*K.Clamp(y,0,1))}});Object.defineProperty(F.prototype,"b",{enumerable:false,configurable:true,set:function(y){if(y===
+undefined)y=0;this._b=Box2D.parseUInt(255*K.Clamp(y,0,1))}});Object.defineProperty(F.prototype,"color",{enumerable:false,configurable:true,get:function(){return this._r<<16|this._g<<8|this._b}});G.b2Settings=function(){};G.b2MixFriction=function(y,w){if(y===undefined)y=0;if(w===undefined)w=0;return Math.sqrt(y*w)};G.b2MixRestitution=function(y,w){if(y===undefined)y=0;if(w===undefined)w=0;return y>w?y:w};G.b2Assert=function(y){if(!y)throw"Assertion Failed";};Box2D.postDefs.push(function(){Box2D.Common.b2Settings.VERSION=
+"2.1alpha";Box2D.Common.b2Settings.USHRT_MAX=65535;Box2D.Common.b2Settings.b2_pi=Math.PI;Box2D.Common.b2Settings.b2_maxManifoldPoints=2;Box2D.Common.b2Settings.b2_aabbExtension=0.1;Box2D.Common.b2Settings.b2_aabbMultiplier=2;Box2D.Common.b2Settings.b2_polygonRadius=2*G.b2_linearSlop;Box2D.Common.b2Settings.b2_linearSlop=0.0050;Box2D.Common.b2Settings.b2_angularSlop=2/180*G.b2_pi;Box2D.Common.b2Settings.b2_toiSlop=8*G.b2_linearSlop;Box2D.Common.b2Settings.b2_maxTOIContactsPerIsland=32;Box2D.Common.b2Settings.b2_maxTOIJointsPerIsland=
+32;Box2D.Common.b2Settings.b2_velocityThreshold=1;Box2D.Common.b2Settings.b2_maxLinearCorrection=0.2;Box2D.Common.b2Settings.b2_maxAngularCorrection=8/180*G.b2_pi;Box2D.Common.b2Settings.b2_maxTranslation=2;Box2D.Common.b2Settings.b2_maxTranslationSquared=G.b2_maxTranslation*G.b2_maxTranslation;Box2D.Common.b2Settings.b2_maxRotation=0.5*G.b2_pi;Box2D.Common.b2Settings.b2_maxRotationSquared=G.b2_maxRotation*G.b2_maxRotation;Box2D.Common.b2Settings.b2_contactBaumgarte=0.2;Box2D.Common.b2Settings.b2_timeToSleep=
+0.5;Box2D.Common.b2Settings.b2_linearSleepTolerance=0.01;Box2D.Common.b2Settings.b2_angularSleepTolerance=2/180*G.b2_pi})})();
+(function(){var F=Box2D.Common.Math.b2Mat22,G=Box2D.Common.Math.b2Mat33,K=Box2D.Common.Math.b2Math,y=Box2D.Common.Math.b2Sweep,w=Box2D.Common.Math.b2Transform,A=Box2D.Common.Math.b2Vec2,U=Box2D.Common.Math.b2Vec3;F.b2Mat22=function(){this.col1=new A;this.col2=new A};F.prototype.b2Mat22=function(){this.SetIdentity()};F.FromAngle=function(p){if(p===undefined)p=0;var B=new F;B.Set(p);return B};F.FromVV=function(p,B){var Q=new F;Q.SetVV(p,B);return Q};F.prototype.Set=function(p){if(p===undefined)p=0;
+var B=Math.cos(p);p=Math.sin(p);this.col1.x=B;this.col2.x=-p;this.col1.y=p;this.col2.y=B};F.prototype.SetVV=function(p,B){this.col1.SetV(p);this.col2.SetV(B)};F.prototype.Copy=function(){var p=new F;p.SetM(this);return p};F.prototype.SetM=function(p){this.col1.SetV(p.col1);this.col2.SetV(p.col2)};F.prototype.AddM=function(p){this.col1.x+=p.col1.x;this.col1.y+=p.col1.y;this.col2.x+=p.col2.x;this.col2.y+=p.col2.y};F.prototype.SetIdentity=function(){this.col1.x=1;this.col2.x=0;this.col1.y=0;this.col2.y=
+1};F.prototype.SetZero=function(){this.col1.x=0;this.col2.x=0;this.col1.y=0;this.col2.y=0};F.prototype.GetAngle=function(){return Math.atan2(this.col1.y,this.col1.x)};F.prototype.GetInverse=function(p){var B=this.col1.x,Q=this.col2.x,V=this.col1.y,M=this.col2.y,L=B*M-Q*V;if(L!=0)L=1/L;p.col1.x=L*M;p.col2.x=-L*Q;p.col1.y=-L*V;p.col2.y=L*B;return p};F.prototype.Solve=function(p,B,Q){if(B===undefined)B=0;if(Q===undefined)Q=0;var V=this.col1.x,M=this.col2.x,L=this.col1.y,I=this.col2.y,W=V*I-M*L;if(W!=
+0)W=1/W;p.x=W*(I*B-M*Q);p.y=W*(V*Q-L*B);return p};F.prototype.Abs=function(){this.col1.Abs();this.col2.Abs()};G.b2Mat33=function(){this.col1=new U;this.col2=new U;this.col3=new U};G.prototype.b2Mat33=function(p,B,Q){if(p===undefined)p=null;if(B===undefined)B=null;if(Q===undefined)Q=null;if(!p&&!B&&!Q){this.col1.SetZero();this.col2.SetZero();this.col3.SetZero()}else{this.col1.SetV(p);this.col2.SetV(B);this.col3.SetV(Q)}};G.prototype.SetVVV=function(p,B,Q){this.col1.SetV(p);this.col2.SetV(B);this.col3.SetV(Q)};
+G.prototype.Copy=function(){return new G(this.col1,this.col2,this.col3)};G.prototype.SetM=function(p){this.col1.SetV(p.col1);this.col2.SetV(p.col2);this.col3.SetV(p.col3)};G.prototype.AddM=function(p){this.col1.x+=p.col1.x;this.col1.y+=p.col1.y;this.col1.z+=p.col1.z;this.col2.x+=p.col2.x;this.col2.y+=p.col2.y;this.col2.z+=p.col2.z;this.col3.x+=p.col3.x;this.col3.y+=p.col3.y;this.col3.z+=p.col3.z};G.prototype.SetIdentity=function(){this.col1.x=1;this.col2.x=0;this.col3.x=0;this.col1.y=0;this.col2.y=
+1;this.col3.y=0;this.col1.z=0;this.col2.z=0;this.col3.z=1};G.prototype.SetZero=function(){this.col1.x=0;this.col2.x=0;this.col3.x=0;this.col1.y=0;this.col2.y=0;this.col3.y=0;this.col1.z=0;this.col2.z=0;this.col3.z=0};G.prototype.Solve22=function(p,B,Q){if(B===undefined)B=0;if(Q===undefined)Q=0;var V=this.col1.x,M=this.col2.x,L=this.col1.y,I=this.col2.y,W=V*I-M*L;if(W!=0)W=1/W;p.x=W*(I*B-M*Q);p.y=W*(V*Q-L*B);return p};G.prototype.Solve33=function(p,B,Q,V){if(B===undefined)B=0;if(Q===undefined)Q=0;
+if(V===undefined)V=0;var M=this.col1.x,L=this.col1.y,I=this.col1.z,W=this.col2.x,Y=this.col2.y,k=this.col2.z,z=this.col3.x,u=this.col3.y,D=this.col3.z,H=M*(Y*D-k*u)+L*(k*z-W*D)+I*(W*u-Y*z);if(H!=0)H=1/H;p.x=H*(B*(Y*D-k*u)+Q*(k*z-W*D)+V*(W*u-Y*z));p.y=H*(M*(Q*D-V*u)+L*(V*z-B*D)+I*(B*u-Q*z));p.z=H*(M*(Y*V-k*Q)+L*(k*B-W*V)+I*(W*Q-Y*B));return p};K.b2Math=function(){};K.IsValid=function(p){if(p===undefined)p=0;return isFinite(p)};K.Dot=function(p,B){return p.x*B.x+p.y*B.y};K.CrossVV=function(p,B){return p.x*
+B.y-p.y*B.x};K.CrossVF=function(p,B){if(B===undefined)B=0;return new A(B*p.y,-B*p.x)};K.CrossFV=function(p,B){if(p===undefined)p=0;return new A(-p*B.y,p*B.x)};K.MulMV=function(p,B){return new A(p.col1.x*B.x+p.col2.x*B.y,p.col1.y*B.x+p.col2.y*B.y)};K.MulTMV=function(p,B){return new A(K.Dot(B,p.col1),K.Dot(B,p.col2))};K.MulX=function(p,B){var Q=K.MulMV(p.R,B);Q.x+=p.position.x;Q.y+=p.position.y;return Q};K.MulXT=function(p,B){var Q=K.SubtractVV(B,p.position),V=Q.x*p.R.col1.x+Q.y*p.R.col1.y;Q.y=Q.x*
+p.R.col2.x+Q.y*p.R.col2.y;Q.x=V;return Q};K.AddVV=function(p,B){return new A(p.x+B.x,p.y+B.y)};K.SubtractVV=function(p,B){return new A(p.x-B.x,p.y-B.y)};K.Distance=function(p,B){var Q=p.x-B.x,V=p.y-B.y;return Math.sqrt(Q*Q+V*V)};K.DistanceSquared=function(p,B){var Q=p.x-B.x,V=p.y-B.y;return Q*Q+V*V};K.MulFV=function(p,B){if(p===undefined)p=0;return new A(p*B.x,p*B.y)};K.AddMM=function(p,B){return F.FromVV(K.AddVV(p.col1,B.col1),K.AddVV(p.col2,B.col2))};K.MulMM=function(p,B){return F.FromVV(K.MulMV(p,
+B.col1),K.MulMV(p,B.col2))};K.MulTMM=function(p,B){var Q=new A(K.Dot(p.col1,B.col1),K.Dot(p.col2,B.col1)),V=new A(K.Dot(p.col1,B.col2),K.Dot(p.col2,B.col2));return F.FromVV(Q,V)};K.Abs=function(p){if(p===undefined)p=0;return p>0?p:-p};K.AbsV=function(p){return new A(K.Abs(p.x),K.Abs(p.y))};K.AbsM=function(p){return F.FromVV(K.AbsV(p.col1),K.AbsV(p.col2))};K.Min=function(p,B){if(p===undefined)p=0;if(B===undefined)B=0;return p<B?p:B};K.MinV=function(p,B){return new A(K.Min(p.x,B.x),K.Min(p.y,B.y))};
+K.Max=function(p,B){if(p===undefined)p=0;if(B===undefined)B=0;return p>B?p:B};K.MaxV=function(p,B){return new A(K.Max(p.x,B.x),K.Max(p.y,B.y))};K.Clamp=function(p,B,Q){if(p===undefined)p=0;if(B===undefined)B=0;if(Q===undefined)Q=0;return p<B?B:p>Q?Q:p};K.ClampV=function(p,B,Q){return K.MaxV(B,K.MinV(p,Q))};K.Swap=function(p,B){var Q=p[0];p[0]=B[0];B[0]=Q};K.Random=function(){return Math.random()*2-1};K.RandomRange=function(p,B){if(p===undefined)p=0;if(B===undefined)B=0;var Q=Math.random();return Q=
+(B-p)*Q+p};K.NextPowerOfTwo=function(p){if(p===undefined)p=0;p|=p>>1&2147483647;p|=p>>2&1073741823;p|=p>>4&268435455;p|=p>>8&16777215;p|=p>>16&65535;return p+1};K.IsPowerOfTwo=function(p){if(p===undefined)p=0;return p>0&&(p&p-1)==0};Box2D.postDefs.push(function(){Box2D.Common.Math.b2Math.b2Vec2_zero=new A(0,0);Box2D.Common.Math.b2Math.b2Mat22_identity=F.FromVV(new A(1,0),new A(0,1));Box2D.Common.Math.b2Math.b2Transform_identity=new w(K.b2Vec2_zero,K.b2Mat22_identity)});y.b2Sweep=function(){this.localCenter=
+new A;this.c0=new A;this.c=new A};y.prototype.Set=function(p){this.localCenter.SetV(p.localCenter);this.c0.SetV(p.c0);this.c.SetV(p.c);this.a0=p.a0;this.a=p.a;this.t0=p.t0};y.prototype.Copy=function(){var p=new y;p.localCenter.SetV(this.localCenter);p.c0.SetV(this.c0);p.c.SetV(this.c);p.a0=this.a0;p.a=this.a;p.t0=this.t0;return p};y.prototype.GetTransform=function(p,B){if(B===undefined)B=0;p.position.x=(1-B)*this.c0.x+B*this.c.x;p.position.y=(1-B)*this.c0.y+B*this.c.y;p.R.Set((1-B)*this.a0+B*this.a);
+var Q=p.R;p.position.x-=Q.col1.x*this.localCenter.x+Q.col2.x*this.localCenter.y;p.position.y-=Q.col1.y*this.localCenter.x+Q.col2.y*this.localCenter.y};y.prototype.Advance=function(p){if(p===undefined)p=0;if(this.t0<p&&1-this.t0>Number.MIN_VALUE){var B=(p-this.t0)/(1-this.t0);this.c0.x=(1-B)*this.c0.x+B*this.c.x;this.c0.y=(1-B)*this.c0.y+B*this.c.y;this.a0=(1-B)*this.a0+B*this.a;this.t0=p}};w.b2Transform=function(){this.position=new A;this.R=new F};w.prototype.b2Transform=function(p,B){if(p===undefined)p=
+null;if(B===undefined)B=null;if(p){this.position.SetV(p);this.R.SetM(B)}};w.prototype.Initialize=function(p,B){this.position.SetV(p);this.R.SetM(B)};w.prototype.SetIdentity=function(){this.position.SetZero();this.R.SetIdentity()};w.prototype.Set=function(p){this.position.SetV(p.position);this.R.SetM(p.R)};w.prototype.GetAngle=function(){return Math.atan2(this.R.col1.y,this.R.col1.x)};A.b2Vec2=function(){};A.prototype.b2Vec2=function(p,B){if(p===undefined)p=0;if(B===undefined)B=0;this.x=p;this.y=B};
+A.prototype.SetZero=function(){this.y=this.x=0};A.prototype.Set=function(p,B){if(p===undefined)p=0;if(B===undefined)B=0;this.x=p;this.y=B};A.prototype.SetV=function(p){this.x=p.x;this.y=p.y};A.prototype.GetNegative=function(){return new A(-this.x,-this.y)};A.prototype.NegativeSelf=function(){this.x=-this.x;this.y=-this.y};A.Make=function(p,B){if(p===undefined)p=0;if(B===undefined)B=0;return new A(p,B)};A.prototype.Copy=function(){return new A(this.x,this.y)};A.prototype.Add=function(p){this.x+=p.x;
+this.y+=p.y};A.prototype.Subtract=function(p){this.x-=p.x;this.y-=p.y};A.prototype.Multiply=function(p){if(p===undefined)p=0;this.x*=p;this.y*=p};A.prototype.MulM=function(p){var B=this.x;this.x=p.col1.x*B+p.col2.x*this.y;this.y=p.col1.y*B+p.col2.y*this.y};A.prototype.MulTM=function(p){var B=K.Dot(this,p.col1);this.y=K.Dot(this,p.col2);this.x=B};A.prototype.CrossVF=function(p){if(p===undefined)p=0;var B=this.x;this.x=p*this.y;this.y=-p*B};A.prototype.CrossFV=function(p){if(p===undefined)p=0;var B=
+this.x;this.x=-p*this.y;this.y=p*B};A.prototype.MinV=function(p){this.x=this.x<p.x?this.x:p.x;this.y=this.y<p.y?this.y:p.y};A.prototype.MaxV=function(p){this.x=this.x>p.x?this.x:p.x;this.y=this.y>p.y?this.y:p.y};A.prototype.Abs=function(){if(this.x<0)this.x=-this.x;if(this.y<0)this.y=-this.y};A.prototype.Length=function(){return Math.sqrt(this.x*this.x+this.y*this.y)};A.prototype.LengthSquared=function(){return this.x*this.x+this.y*this.y};A.prototype.Normalize=function(){var p=Math.sqrt(this.x*this.x+
+this.y*this.y);if(p<Number.MIN_VALUE)return 0;var B=1/p;this.x*=B;this.y*=B;return p};A.prototype.IsValid=function(){return K.IsValid(this.x)&&K.IsValid(this.y)};U.b2Vec3=function(){};U.prototype.b2Vec3=function(p,B,Q){if(p===undefined)p=0;if(B===undefined)B=0;if(Q===undefined)Q=0;this.x=p;this.y=B;this.z=Q};U.prototype.SetZero=function(){this.x=this.y=this.z=0};U.prototype.Set=function(p,B,Q){if(p===undefined)p=0;if(B===undefined)B=0;if(Q===undefined)Q=0;this.x=p;this.y=B;this.z=Q};U.prototype.SetV=
+function(p){this.x=p.x;this.y=p.y;this.z=p.z};U.prototype.GetNegative=function(){return new U(-this.x,-this.y,-this.z)};U.prototype.NegativeSelf=function(){this.x=-this.x;this.y=-this.y;this.z=-this.z};U.prototype.Copy=function(){return new U(this.x,this.y,this.z)};U.prototype.Add=function(p){this.x+=p.x;this.y+=p.y;this.z+=p.z};U.prototype.Subtract=function(p){this.x-=p.x;this.y-=p.y;this.z-=p.z};U.prototype.Multiply=function(p){if(p===undefined)p=0;this.x*=p;this.y*=p;this.z*=p}})();
+(function(){var F=Box2D.Common.Math.b2Math,G=Box2D.Common.Math.b2Sweep,K=Box2D.Common.Math.b2Transform,y=Box2D.Common.Math.b2Vec2,w=Box2D.Common.b2Color,A=Box2D.Common.b2Settings,U=Box2D.Collision.b2AABB,p=Box2D.Collision.b2ContactPoint,B=Box2D.Collision.b2DynamicTreeBroadPhase,Q=Box2D.Collision.b2RayCastInput,V=Box2D.Collision.b2RayCastOutput,M=Box2D.Collision.Shapes.b2CircleShape,L=Box2D.Collision.Shapes.b2EdgeShape,I=Box2D.Collision.Shapes.b2MassData,W=Box2D.Collision.Shapes.b2PolygonShape,Y=Box2D.Collision.Shapes.b2Shape,
+k=Box2D.Dynamics.b2Body,z=Box2D.Dynamics.b2BodyDef,u=Box2D.Dynamics.b2ContactFilter,D=Box2D.Dynamics.b2ContactImpulse,H=Box2D.Dynamics.b2ContactListener,O=Box2D.Dynamics.b2ContactManager,E=Box2D.Dynamics.b2DebugDraw,R=Box2D.Dynamics.b2DestructionListener,N=Box2D.Dynamics.b2FilterData,S=Box2D.Dynamics.b2Fixture,aa=Box2D.Dynamics.b2FixtureDef,Z=Box2D.Dynamics.b2Island,d=Box2D.Dynamics.b2TimeStep,h=Box2D.Dynamics.b2World,l=Box2D.Dynamics.Contacts.b2Contact,j=Box2D.Dynamics.Contacts.b2ContactFactory,
+o=Box2D.Dynamics.Contacts.b2ContactSolver,q=Box2D.Dynamics.Joints.b2Joint,n=Box2D.Dynamics.Joints.b2PulleyJoint;k.b2Body=function(){this.m_xf=new K;this.m_sweep=new G;this.m_linearVelocity=new y;this.m_force=new y};k.prototype.connectEdges=function(a,c,g){if(g===undefined)g=0;var b=Math.atan2(c.GetDirectionVector().y,c.GetDirectionVector().x);g=F.MulFV(Math.tan((b-g)*0.5),c.GetDirectionVector());g=F.SubtractVV(g,c.GetNormalVector());g=F.MulFV(A.b2_toiSlop,g);g=F.AddVV(g,c.GetVertex1());var e=F.AddVV(a.GetDirectionVector(),
+c.GetDirectionVector());e.Normalize();var f=F.Dot(a.GetDirectionVector(),c.GetNormalVector())>0;a.SetNextEdge(c,g,e,f);c.SetPrevEdge(a,g,e,f);return b};k.prototype.CreateFixture=function(a){if(this.m_world.IsLocked()==true)return null;var c=new S;c.Create(this,this.m_xf,a);this.m_flags&k.e_activeFlag&&c.CreateProxy(this.m_world.m_contactManager.m_broadPhase,this.m_xf);c.m_next=this.m_fixtureList;this.m_fixtureList=c;++this.m_fixtureCount;c.m_body=this;c.m_density>0&&this.ResetMassData();this.m_world.m_flags|=
+h.e_newFixture;return c};k.prototype.CreateFixture2=function(a,c){if(c===undefined)c=0;var g=new aa;g.shape=a;g.density=c;return this.CreateFixture(g)};k.prototype.DestroyFixture=function(a){if(this.m_world.IsLocked()!=true){for(var c=this.m_fixtureList,g=null;c!=null;){if(c==a){if(g)g.m_next=a.m_next;else this.m_fixtureList=a.m_next;break}g=c;c=c.m_next}for(c=this.m_contactList;c;){g=c.contact;c=c.next;var b=g.GetFixtureA(),e=g.GetFixtureB();if(a==b||a==e)this.m_world.m_contactManager.Destroy(g)}this.m_flags&
+k.e_activeFlag&&a.DestroyProxy(this.m_world.m_contactManager.m_broadPhase);a.Destroy();a.m_body=null;a.m_next=null;--this.m_fixtureCount;this.ResetMassData()}};k.prototype.SetPositionAndAngle=function(a,c){if(c===undefined)c=0;var g;if(this.m_world.IsLocked()!=true){this.m_xf.R.Set(c);this.m_xf.position.SetV(a);g=this.m_xf.R;var b=this.m_sweep.localCenter;this.m_sweep.c.x=g.col1.x*b.x+g.col2.x*b.y;this.m_sweep.c.y=g.col1.y*b.x+g.col2.y*b.y;this.m_sweep.c.x+=this.m_xf.position.x;this.m_sweep.c.y+=
+this.m_xf.position.y;this.m_sweep.c0.SetV(this.m_sweep.c);this.m_sweep.a0=this.m_sweep.a=c;b=this.m_world.m_contactManager.m_broadPhase;for(g=this.m_fixtureList;g;g=g.m_next)g.Synchronize(b,this.m_xf,this.m_xf);this.m_world.m_contactManager.FindNewContacts()}};k.prototype.SetTransform=function(a){this.SetPositionAndAngle(a.position,a.GetAngle())};k.prototype.GetTransform=function(){return this.m_xf};k.prototype.GetPosition=function(){return this.m_xf.position};k.prototype.SetPosition=function(a){this.SetPositionAndAngle(a,
+this.GetAngle())};k.prototype.GetAngle=function(){return this.m_sweep.a};k.prototype.SetAngle=function(a){if(a===undefined)a=0;this.SetPositionAndAngle(this.GetPosition(),a)};k.prototype.GetWorldCenter=function(){return this.m_sweep.c};k.prototype.GetLocalCenter=function(){return this.m_sweep.localCenter};k.prototype.SetLinearVelocity=function(a){this.m_type!=k.b2_staticBody&&this.m_linearVelocity.SetV(a)};k.prototype.GetLinearVelocity=function(){return this.m_linearVelocity};k.prototype.SetAngularVelocity=
+function(a){if(a===undefined)a=0;if(this.m_type!=k.b2_staticBody)this.m_angularVelocity=a};k.prototype.GetAngularVelocity=function(){return this.m_angularVelocity};k.prototype.GetDefinition=function(){var a=new z;a.type=this.GetType();a.allowSleep=(this.m_flags&k.e_allowSleepFlag)==k.e_allowSleepFlag;a.angle=this.GetAngle();a.angularDamping=this.m_angularDamping;a.angularVelocity=this.m_angularVelocity;a.fixedRotation=(this.m_flags&k.e_fixedRotationFlag)==k.e_fixedRotationFlag;a.bullet=(this.m_flags&
+k.e_bulletFlag)==k.e_bulletFlag;a.awake=(this.m_flags&k.e_awakeFlag)==k.e_awakeFlag;a.linearDamping=this.m_linearDamping;a.linearVelocity.SetV(this.GetLinearVelocity());a.position=this.GetPosition();a.userData=this.GetUserData();return a};k.prototype.ApplyForce=function(a,c){if(this.m_type==k.b2_dynamicBody){this.IsAwake()==false&&this.SetAwake(true);this.m_force.x+=a.x;this.m_force.y+=a.y;this.m_torque+=(c.x-this.m_sweep.c.x)*a.y-(c.y-this.m_sweep.c.y)*a.x}};k.prototype.ApplyTorque=function(a){if(a===
+undefined)a=0;if(this.m_type==k.b2_dynamicBody){this.IsAwake()==false&&this.SetAwake(true);this.m_torque+=a}};k.prototype.ApplyImpulse=function(a,c){if(this.m_type==k.b2_dynamicBody){this.IsAwake()==false&&this.SetAwake(true);this.m_linearVelocity.x+=this.m_invMass*a.x;this.m_linearVelocity.y+=this.m_invMass*a.y;this.m_angularVelocity+=this.m_invI*((c.x-this.m_sweep.c.x)*a.y-(c.y-this.m_sweep.c.y)*a.x)}};k.prototype.Split=function(a){for(var c=this.GetLinearVelocity().Copy(),g=this.GetAngularVelocity(),
+b=this.GetWorldCenter(),e=this.m_world.CreateBody(this.GetDefinition()),f,m=this.m_fixtureList;m;)if(a(m)){var r=m.m_next;if(f)f.m_next=r;else this.m_fixtureList=r;this.m_fixtureCount--;m.m_next=e.m_fixtureList;e.m_fixtureList=m;e.m_fixtureCount++;m.m_body=e;m=r}else{f=m;m=m.m_next}this.ResetMassData();e.ResetMassData();f=this.GetWorldCenter();a=e.GetWorldCenter();f=F.AddVV(c,F.CrossFV(g,F.SubtractVV(f,b)));c=F.AddVV(c,F.CrossFV(g,F.SubtractVV(a,b)));this.SetLinearVelocity(f);e.SetLinearVelocity(c);
+this.SetAngularVelocity(g);e.SetAngularVelocity(g);this.SynchronizeFixtures();e.SynchronizeFixtures();return e};k.prototype.Merge=function(a){var c;for(c=a.m_fixtureList;c;){var g=c.m_next;a.m_fixtureCount--;c.m_next=this.m_fixtureList;this.m_fixtureList=c;this.m_fixtureCount++;c.m_body=e;c=g}b.m_fixtureCount=0;var b=this,e=a;b.GetWorldCenter();e.GetWorldCenter();b.GetLinearVelocity().Copy();e.GetLinearVelocity().Copy();b.GetAngularVelocity();e.GetAngularVelocity();b.ResetMassData();this.SynchronizeFixtures()};
+k.prototype.GetMass=function(){return this.m_mass};k.prototype.GetInertia=function(){return this.m_I};k.prototype.GetMassData=function(a){a.mass=this.m_mass;a.I=this.m_I;a.center.SetV(this.m_sweep.localCenter)};k.prototype.SetMassData=function(a){A.b2Assert(this.m_world.IsLocked()==false);if(this.m_world.IsLocked()!=true)if(this.m_type==k.b2_dynamicBody){this.m_invI=this.m_I=this.m_invMass=0;this.m_mass=a.mass;if(this.m_mass<=0)this.m_mass=1;this.m_invMass=1/this.m_mass;if(a.I>0&&(this.m_flags&k.e_fixedRotationFlag)==
+0){this.m_I=a.I-this.m_mass*(a.center.x*a.center.x+a.center.y*a.center.y);this.m_invI=1/this.m_I}var c=this.m_sweep.c.Copy();this.m_sweep.localCenter.SetV(a.center);this.m_sweep.c0.SetV(F.MulX(this.m_xf,this.m_sweep.localCenter));this.m_sweep.c.SetV(this.m_sweep.c0);this.m_linearVelocity.x+=this.m_angularVelocity*-(this.m_sweep.c.y-c.y);this.m_linearVelocity.y+=this.m_angularVelocity*+(this.m_sweep.c.x-c.x)}};k.prototype.ResetMassData=function(){this.m_invI=this.m_I=this.m_invMass=this.m_mass=0;this.m_sweep.localCenter.SetZero();
+if(!(this.m_type==k.b2_staticBody||this.m_type==k.b2_kinematicBody)){for(var a=y.Make(0,0),c=this.m_fixtureList;c;c=c.m_next)if(c.m_density!=0){var g=c.GetMassData();this.m_mass+=g.mass;a.x+=g.center.x*g.mass;a.y+=g.center.y*g.mass;this.m_I+=g.I}if(this.m_mass>0){this.m_invMass=1/this.m_mass;a.x*=this.m_invMass;a.y*=this.m_invMass}else this.m_invMass=this.m_mass=1;if(this.m_I>0&&(this.m_flags&k.e_fixedRotationFlag)==0){this.m_I-=this.m_mass*(a.x*a.x+a.y*a.y);this.m_I*=this.m_inertiaScale;A.b2Assert(this.m_I>
+0);this.m_invI=1/this.m_I}else this.m_invI=this.m_I=0;c=this.m_sweep.c.Copy();this.m_sweep.localCenter.SetV(a);this.m_sweep.c0.SetV(F.MulX(this.m_xf,this.m_sweep.localCenter));this.m_sweep.c.SetV(this.m_sweep.c0);this.m_linearVelocity.x+=this.m_angularVelocity*-(this.m_sweep.c.y-c.y);this.m_linearVelocity.y+=this.m_angularVelocity*+(this.m_sweep.c.x-c.x)}};k.prototype.GetWorldPoint=function(a){var c=this.m_xf.R;a=new y(c.col1.x*a.x+c.col2.x*a.y,c.col1.y*a.x+c.col2.y*a.y);a.x+=this.m_xf.position.x;
+a.y+=this.m_xf.position.y;return a};k.prototype.GetWorldVector=function(a){return F.MulMV(this.m_xf.R,a)};k.prototype.GetLocalPoint=function(a){return F.MulXT(this.m_xf,a)};k.prototype.GetLocalVector=function(a){return F.MulTMV(this.m_xf.R,a)};k.prototype.GetLinearVelocityFromWorldPoint=function(a){return new y(this.m_linearVelocity.x-this.m_angularVelocity*(a.y-this.m_sweep.c.y),this.m_linearVelocity.y+this.m_angularVelocity*(a.x-this.m_sweep.c.x))};k.prototype.GetLinearVelocityFromLocalPoint=function(a){var c=
+this.m_xf.R;a=new y(c.col1.x*a.x+c.col2.x*a.y,c.col1.y*a.x+c.col2.y*a.y);a.x+=this.m_xf.position.x;a.y+=this.m_xf.position.y;return new y(this.m_linearVelocity.x-this.m_angularVelocity*(a.y-this.m_sweep.c.y),this.m_linearVelocity.y+this.m_angularVelocity*(a.x-this.m_sweep.c.x))};k.prototype.GetLinearDamping=function(){return this.m_linearDamping};k.prototype.SetLinearDamping=function(a){if(a===undefined)a=0;this.m_linearDamping=a};k.prototype.GetAngularDamping=function(){return this.m_angularDamping};
+k.prototype.SetAngularDamping=function(a){if(a===undefined)a=0;this.m_angularDamping=a};k.prototype.SetType=function(a){if(a===undefined)a=0;if(this.m_type!=a){this.m_type=a;this.ResetMassData();if(this.m_type==k.b2_staticBody){this.m_linearVelocity.SetZero();this.m_angularVelocity=0}this.SetAwake(true);this.m_force.SetZero();this.m_torque=0;for(a=this.m_contactList;a;a=a.next)a.contact.FlagForFiltering()}};k.prototype.GetType=function(){return this.m_type};k.prototype.SetBullet=function(a){if(a)this.m_flags|=
+k.e_bulletFlag;else this.m_flags&=~k.e_bulletFlag};k.prototype.IsBullet=function(){return(this.m_flags&k.e_bulletFlag)==k.e_bulletFlag};k.prototype.SetSleepingAllowed=function(a){if(a)this.m_flags|=k.e_allowSleepFlag;else{this.m_flags&=~k.e_allowSleepFlag;this.SetAwake(true)}};k.prototype.SetAwake=function(a){if(a){this.m_flags|=k.e_awakeFlag;this.m_sleepTime=0}else{this.m_flags&=~k.e_awakeFlag;this.m_sleepTime=0;this.m_linearVelocity.SetZero();this.m_angularVelocity=0;this.m_force.SetZero();this.m_torque=
+0}};k.prototype.IsAwake=function(){return(this.m_flags&k.e_awakeFlag)==k.e_awakeFlag};k.prototype.SetFixedRotation=function(a){if(a)this.m_flags|=k.e_fixedRotationFlag;else this.m_flags&=~k.e_fixedRotationFlag;this.ResetMassData()};k.prototype.IsFixedRotation=function(){return(this.m_flags&k.e_fixedRotationFlag)==k.e_fixedRotationFlag};k.prototype.SetActive=function(a){if(a!=this.IsActive()){var c;if(a){this.m_flags|=k.e_activeFlag;a=this.m_world.m_contactManager.m_broadPhase;for(c=this.m_fixtureList;c;c=
+c.m_next)c.CreateProxy(a,this.m_xf)}else{this.m_flags&=~k.e_activeFlag;a=this.m_world.m_contactManager.m_broadPhase;for(c=this.m_fixtureList;c;c=c.m_next)c.DestroyProxy(a);for(a=this.m_contactList;a;){c=a;a=a.next;this.m_world.m_contactManager.Destroy(c.contact)}this.m_contactList=null}}};k.prototype.IsActive=function(){return(this.m_flags&k.e_activeFlag)==k.e_activeFlag};k.prototype.IsSleepingAllowed=function(){return(this.m_flags&k.e_allowSleepFlag)==k.e_allowSleepFlag};k.prototype.GetFixtureList=
+function(){return this.m_fixtureList};k.prototype.GetJointList=function(){return this.m_jointList};k.prototype.GetControllerList=function(){return this.m_controllerList};k.prototype.GetContactList=function(){return this.m_contactList};k.prototype.GetNext=function(){return this.m_next};k.prototype.GetUserData=function(){return this.m_userData};k.prototype.SetUserData=function(a){this.m_userData=a};k.prototype.GetWorld=function(){return this.m_world};k.prototype.b2Body=function(a,c){this.m_flags=0;
+if(a.bullet)this.m_flags|=k.e_bulletFlag;if(a.fixedRotation)this.m_flags|=k.e_fixedRotationFlag;if(a.allowSleep)this.m_flags|=k.e_allowSleepFlag;if(a.awake)this.m_flags|=k.e_awakeFlag;if(a.active)this.m_flags|=k.e_activeFlag;this.m_world=c;this.m_xf.position.SetV(a.position);this.m_xf.R.Set(a.angle);this.m_sweep.localCenter.SetZero();this.m_sweep.t0=1;this.m_sweep.a0=this.m_sweep.a=a.angle;var g=this.m_xf.R,b=this.m_sweep.localCenter;this.m_sweep.c.x=g.col1.x*b.x+g.col2.x*b.y;this.m_sweep.c.y=g.col1.y*
+b.x+g.col2.y*b.y;this.m_sweep.c.x+=this.m_xf.position.x;this.m_sweep.c.y+=this.m_xf.position.y;this.m_sweep.c0.SetV(this.m_sweep.c);this.m_contactList=this.m_controllerList=this.m_jointList=null;this.m_controllerCount=0;this.m_next=this.m_prev=null;this.m_linearVelocity.SetV(a.linearVelocity);this.m_angularVelocity=a.angularVelocity;this.m_linearDamping=a.linearDamping;this.m_angularDamping=a.angularDamping;this.m_force.Set(0,0);this.m_sleepTime=this.m_torque=0;this.m_type=a.type;if(this.m_type==
+k.b2_dynamicBody)this.m_invMass=this.m_mass=1;else this.m_invMass=this.m_mass=0;this.m_invI=this.m_I=0;this.m_inertiaScale=a.inertiaScale;this.m_userData=a.userData;this.m_fixtureList=null;this.m_fixtureCount=0};k.prototype.SynchronizeFixtures=function(){var a=k.s_xf1;a.R.Set(this.m_sweep.a0);var c=a.R,g=this.m_sweep.localCenter;a.position.x=this.m_sweep.c0.x-(c.col1.x*g.x+c.col2.x*g.y);a.position.y=this.m_sweep.c0.y-(c.col1.y*g.x+c.col2.y*g.y);g=this.m_world.m_contactManager.m_broadPhase;for(c=this.m_fixtureList;c;c=
+c.m_next)c.Synchronize(g,a,this.m_xf)};k.prototype.SynchronizeTransform=function(){this.m_xf.R.Set(this.m_sweep.a);var a=this.m_xf.R,c=this.m_sweep.localCenter;this.m_xf.position.x=this.m_sweep.c.x-(a.col1.x*c.x+a.col2.x*c.y);this.m_xf.position.y=this.m_sweep.c.y-(a.col1.y*c.x+a.col2.y*c.y)};k.prototype.ShouldCollide=function(a){if(this.m_type!=k.b2_dynamicBody&&a.m_type!=k.b2_dynamicBody)return false;for(var c=this.m_jointList;c;c=c.next)if(c.other==a)if(c.joint.m_collideConnected==false)return false;
+return true};k.prototype.Advance=function(a){if(a===undefined)a=0;this.m_sweep.Advance(a);this.m_sweep.c.SetV(this.m_sweep.c0);this.m_sweep.a=this.m_sweep.a0;this.SynchronizeTransform()};Box2D.postDefs.push(function(){Box2D.Dynamics.b2Body.s_xf1=new K;Box2D.Dynamics.b2Body.e_islandFlag=1;Box2D.Dynamics.b2Body.e_awakeFlag=2;Box2D.Dynamics.b2Body.e_allowSleepFlag=4;Box2D.Dynamics.b2Body.e_bulletFlag=8;Box2D.Dynamics.b2Body.e_fixedRotationFlag=16;Box2D.Dynamics.b2Body.e_activeFlag=32;Box2D.Dynamics.b2Body.b2_staticBody=
+0;Box2D.Dynamics.b2Body.b2_kinematicBody=1;Box2D.Dynamics.b2Body.b2_dynamicBody=2});z.b2BodyDef=function(){this.position=new y;this.linearVelocity=new y};z.prototype.b2BodyDef=function(){this.userData=null;this.position.Set(0,0);this.angle=0;this.linearVelocity.Set(0,0);this.angularDamping=this.linearDamping=this.angularVelocity=0;this.awake=this.allowSleep=true;this.bullet=this.fixedRotation=false;this.type=k.b2_staticBody;this.active=true;this.inertiaScale=1};u.b2ContactFilter=function(){};u.prototype.ShouldCollide=
+function(a,c){var g=a.GetFilterData(),b=c.GetFilterData();if(g.groupIndex==b.groupIndex&&g.groupIndex!=0)return g.groupIndex>0;return(g.maskBits&b.categoryBits)!=0&&(g.categoryBits&b.maskBits)!=0};u.prototype.RayCollide=function(a,c){if(!a)return true;return this.ShouldCollide(a instanceof S?a:null,c)};Box2D.postDefs.push(function(){Box2D.Dynamics.b2ContactFilter.b2_defaultFilter=new u});D.b2ContactImpulse=function(){this.normalImpulses=new Vector_a2j_Number(A.b2_maxManifoldPoints);this.tangentImpulses=
+new Vector_a2j_Number(A.b2_maxManifoldPoints)};H.b2ContactListener=function(){};H.prototype.BeginContact=function(){};H.prototype.EndContact=function(){};H.prototype.PreSolve=function(){};H.prototype.PostSolve=function(){};Box2D.postDefs.push(function(){Box2D.Dynamics.b2ContactListener.b2_defaultListener=new H});O.b2ContactManager=function(){};O.prototype.b2ContactManager=function(){this.m_world=null;this.m_contactCount=0;this.m_contactFilter=u.b2_defaultFilter;this.m_contactListener=H.b2_defaultListener;
+this.m_contactFactory=new j(this.m_allocator);this.m_broadPhase=new B};O.prototype.AddPair=function(a,c){var g=a instanceof S?a:null,b=c instanceof S?c:null,e=g.GetBody(),f=b.GetBody();if(e!=f){for(var m=f.GetContactList();m;){if(m.other==e){var r=m.contact.GetFixtureA(),s=m.contact.GetFixtureB();if(r==g&&s==b)return;if(r==b&&s==g)return}m=m.next}if(f.ShouldCollide(e)!=false)if(this.m_contactFilter.ShouldCollide(g,b)!=false){m=this.m_contactFactory.Create(g,b);g=m.GetFixtureA();b=m.GetFixtureB();
+e=g.m_body;f=b.m_body;m.m_prev=null;m.m_next=this.m_world.m_contactList;if(this.m_world.m_contactList!=null)this.m_world.m_contactList.m_prev=m;this.m_world.m_contactList=m;m.m_nodeA.contact=m;m.m_nodeA.other=f;m.m_nodeA.prev=null;m.m_nodeA.next=e.m_contactList;if(e.m_contactList!=null)e.m_contactList.prev=m.m_nodeA;e.m_contactList=m.m_nodeA;m.m_nodeB.contact=m;m.m_nodeB.other=e;m.m_nodeB.prev=null;m.m_nodeB.next=f.m_contactList;if(f.m_contactList!=null)f.m_contactList.prev=m.m_nodeB;f.m_contactList=
+m.m_nodeB;++this.m_world.m_contactCount}}};O.prototype.FindNewContacts=function(){this.m_broadPhase.UpdatePairs(Box2D.generateCallback(this,this.AddPair))};O.prototype.Destroy=function(a){var c=a.GetFixtureA(),g=a.GetFixtureB();c=c.GetBody();g=g.GetBody();a.IsTouching()&&this.m_contactListener.EndContact(a);if(a.m_prev)a.m_prev.m_next=a.m_next;if(a.m_next)a.m_next.m_prev=a.m_prev;if(a==this.m_world.m_contactList)this.m_world.m_contactList=a.m_next;if(a.m_nodeA.prev)a.m_nodeA.prev.next=a.m_nodeA.next;
+if(a.m_nodeA.next)a.m_nodeA.next.prev=a.m_nodeA.prev;if(a.m_nodeA==c.m_contactList)c.m_contactList=a.m_nodeA.next;if(a.m_nodeB.prev)a.m_nodeB.prev.next=a.m_nodeB.next;if(a.m_nodeB.next)a.m_nodeB.next.prev=a.m_nodeB.prev;if(a.m_nodeB==g.m_contactList)g.m_contactList=a.m_nodeB.next;this.m_contactFactory.Destroy(a);--this.m_contactCount};O.prototype.Collide=function(){for(var a=this.m_world.m_contactList;a;){var c=a.GetFixtureA(),g=a.GetFixtureB(),b=c.GetBody(),e=g.GetBody();if(b.IsAwake()==false&&e.IsAwake()==
+false)a=a.GetNext();else{if(a.m_flags&l.e_filterFlag){if(e.ShouldCollide(b)==false){c=a;a=c.GetNext();this.Destroy(c);continue}if(this.m_contactFilter.ShouldCollide(c,g)==false){c=a;a=c.GetNext();this.Destroy(c);continue}a.m_flags&=~l.e_filterFlag}if(this.m_broadPhase.TestOverlap(c.m_proxy,g.m_proxy)==false){c=a;a=c.GetNext();this.Destroy(c)}else{a.Update(this.m_contactListener);a=a.GetNext()}}}};Box2D.postDefs.push(function(){Box2D.Dynamics.b2ContactManager.s_evalCP=new p});E.b2DebugDraw=function(){};
+E.prototype.b2DebugDraw=function(){};E.prototype.SetFlags=function(){};E.prototype.GetFlags=function(){};E.prototype.AppendFlags=function(){};E.prototype.ClearFlags=function(){};E.prototype.SetSprite=function(){};E.prototype.GetSprite=function(){};E.prototype.SetDrawScale=function(){};E.prototype.GetDrawScale=function(){};E.prototype.SetLineThickness=function(){};E.prototype.GetLineThickness=function(){};E.prototype.SetAlpha=function(){};E.prototype.GetAlpha=function(){};E.prototype.SetFillAlpha=
+function(){};E.prototype.GetFillAlpha=function(){};E.prototype.SetXFormScale=function(){};E.prototype.GetXFormScale=function(){};E.prototype.DrawPolygon=function(){};E.prototype.DrawSolidPolygon=function(){};E.prototype.DrawCircle=function(){};E.prototype.DrawSolidCircle=function(){};E.prototype.DrawSegment=function(){};E.prototype.DrawTransform=function(){};Box2D.postDefs.push(function(){Box2D.Dynamics.b2DebugDraw.e_shapeBit=1;Box2D.Dynamics.b2DebugDraw.e_jointBit=2;Box2D.Dynamics.b2DebugDraw.e_aabbBit=
+4;Box2D.Dynamics.b2DebugDraw.e_pairBit=8;Box2D.Dynamics.b2DebugDraw.e_centerOfMassBit=16;Box2D.Dynamics.b2DebugDraw.e_controllerBit=32});R.b2DestructionListener=function(){};R.prototype.SayGoodbyeJoint=function(){};R.prototype.SayGoodbyeFixture=function(){};N.b2FilterData=function(){this.categoryBits=1;this.maskBits=65535;this.groupIndex=0};N.prototype.Copy=function(){var a=new N;a.categoryBits=this.categoryBits;a.maskBits=this.maskBits;a.groupIndex=this.groupIndex;return a};S.b2Fixture=function(){this.m_filter=
+new N};S.prototype.GetType=function(){return this.m_shape.GetType()};S.prototype.GetShape=function(){return this.m_shape};S.prototype.SetSensor=function(a){if(this.m_isSensor!=a){this.m_isSensor=a;if(this.m_body!=null)for(a=this.m_body.GetContactList();a;){var c=a.contact,g=c.GetFixtureA(),b=c.GetFixtureB();if(g==this||b==this)c.SetSensor(g.IsSensor()||b.IsSensor());a=a.next}}};S.prototype.IsSensor=function(){return this.m_isSensor};S.prototype.SetFilterData=function(a){this.m_filter=a.Copy();if(!this.m_body)for(a=
+this.m_body.GetContactList();a;){var c=a.contact,g=c.GetFixtureA(),b=c.GetFixtureB();if(g==this||b==this)c.FlagForFiltering();a=a.next}};S.prototype.GetFilterData=function(){return this.m_filter.Copy()};S.prototype.GetBody=function(){return this.m_body};S.prototype.GetNext=function(){return this.m_next};S.prototype.GetUserData=function(){return this.m_userData};S.prototype.SetUserData=function(a){this.m_userData=a};S.prototype.TestPoint=function(a){return this.m_shape.TestPoint(this.m_body.GetTransform(),
+a)};S.prototype.RayCast=function(a,c){return this.m_shape.RayCast(a,c,this.m_body.GetTransform())};S.prototype.GetMassData=function(a){if(a===undefined)a=null;if(a==null)a=new I;this.m_shape.ComputeMass(a,this.m_density);return a};S.prototype.SetDensity=function(a){if(a===undefined)a=0;this.m_density=a};S.prototype.GetDensity=function(){return this.m_density};S.prototype.GetFriction=function(){return this.m_friction};S.prototype.SetFriction=function(a){if(a===undefined)a=0;this.m_friction=a};S.prototype.GetRestitution=
+function(){return this.m_restitution};S.prototype.SetRestitution=function(a){if(a===undefined)a=0;this.m_restitution=a};S.prototype.GetAABB=function(){return this.m_aabb};S.prototype.b2Fixture=function(){this.m_aabb=new U;this.m_shape=this.m_next=this.m_body=this.m_userData=null;this.m_restitution=this.m_friction=this.m_density=0};S.prototype.Create=function(a,c,g){this.m_userData=g.userData;this.m_friction=g.friction;this.m_restitution=g.restitution;this.m_body=a;this.m_next=null;this.m_filter=g.filter.Copy();
+this.m_isSensor=g.isSensor;this.m_shape=g.shape.Copy();this.m_density=g.density};S.prototype.Destroy=function(){this.m_shape=null};S.prototype.CreateProxy=function(a,c){this.m_shape.ComputeAABB(this.m_aabb,c);this.m_proxy=a.CreateProxy(this.m_aabb,this)};S.prototype.DestroyProxy=function(a){if(this.m_proxy!=null){a.DestroyProxy(this.m_proxy);this.m_proxy=null}};S.prototype.Synchronize=function(a,c,g){if(this.m_proxy){var b=new U,e=new U;this.m_shape.ComputeAABB(b,c);this.m_shape.ComputeAABB(e,g);
+this.m_aabb.Combine(b,e);c=F.SubtractVV(g.position,c.position);a.MoveProxy(this.m_proxy,this.m_aabb,c)}};aa.b2FixtureDef=function(){this.filter=new N};aa.prototype.b2FixtureDef=function(){this.userData=this.shape=null;this.friction=0.2;this.density=this.restitution=0;this.filter.categoryBits=1;this.filter.maskBits=65535;this.filter.groupIndex=0;this.isSensor=false};Z.b2Island=function(){};Z.prototype.b2Island=function(){this.m_bodies=new Vector;this.m_contacts=new Vector;this.m_joints=new Vector};
+Z.prototype.Initialize=function(a,c,g,b,e,f){if(a===undefined)a=0;if(c===undefined)c=0;if(g===undefined)g=0;var m=0;this.m_bodyCapacity=a;this.m_contactCapacity=c;this.m_jointCapacity=g;this.m_jointCount=this.m_contactCount=this.m_bodyCount=0;this.m_allocator=b;this.m_listener=e;this.m_contactSolver=f;for(m=this.m_bodies.length;m<a;m++)this.m_bodies[m]=null;for(m=this.m_contacts.length;m<c;m++)this.m_contacts[m]=null;for(m=this.m_joints.length;m<g;m++)this.m_joints[m]=null};Z.prototype.Clear=function(){this.m_jointCount=
+this.m_contactCount=this.m_bodyCount=0};Z.prototype.Solve=function(a,c,g){var b=0,e=0,f;for(b=0;b<this.m_bodyCount;++b){e=this.m_bodies[b];if(e.GetType()==k.b2_dynamicBody){e.m_linearVelocity.x+=a.dt*(c.x+e.m_invMass*e.m_force.x);e.m_linearVelocity.y+=a.dt*(c.y+e.m_invMass*e.m_force.y);e.m_angularVelocity+=a.dt*e.m_invI*e.m_torque;e.m_linearVelocity.Multiply(F.Clamp(1-a.dt*e.m_linearDamping,0,1));e.m_angularVelocity*=F.Clamp(1-a.dt*e.m_angularDamping,0,1)}}this.m_contactSolver.Initialize(a,this.m_contacts,
+this.m_contactCount,this.m_allocator);c=this.m_contactSolver;c.InitVelocityConstraints(a);for(b=0;b<this.m_jointCount;++b){f=this.m_joints[b];f.InitVelocityConstraints(a)}for(b=0;b<a.velocityIterations;++b){for(e=0;e<this.m_jointCount;++e){f=this.m_joints[e];f.SolveVelocityConstraints(a)}c.SolveVelocityConstraints()}for(b=0;b<this.m_jointCount;++b){f=this.m_joints[b];f.FinalizeVelocityConstraints()}c.FinalizeVelocityConstraints();for(b=0;b<this.m_bodyCount;++b){e=this.m_bodies[b];if(e.GetType()!=
+k.b2_staticBody){var m=a.dt*e.m_linearVelocity.x,r=a.dt*e.m_linearVelocity.y;if(m*m+r*r>A.b2_maxTranslationSquared){e.m_linearVelocity.Normalize();e.m_linearVelocity.x*=A.b2_maxTranslation*a.inv_dt;e.m_linearVelocity.y*=A.b2_maxTranslation*a.inv_dt}m=a.dt*e.m_angularVelocity;if(m*m>A.b2_maxRotationSquared)e.m_angularVelocity=e.m_angularVelocity<0?-A.b2_maxRotation*a.inv_dt:A.b2_maxRotation*a.inv_dt;e.m_sweep.c0.SetV(e.m_sweep.c);e.m_sweep.a0=e.m_sweep.a;e.m_sweep.c.x+=a.dt*e.m_linearVelocity.x;e.m_sweep.c.y+=
+a.dt*e.m_linearVelocity.y;e.m_sweep.a+=a.dt*e.m_angularVelocity;e.SynchronizeTransform()}}for(b=0;b<a.positionIterations;++b){m=c.SolvePositionConstraints(A.b2_contactBaumgarte);r=true;for(e=0;e<this.m_jointCount;++e){f=this.m_joints[e];f=f.SolvePositionConstraints(A.b2_contactBaumgarte);r=r&&f}if(m&&r)break}this.Report(c.m_constraints);if(g){g=Number.MAX_VALUE;c=A.b2_linearSleepTolerance*A.b2_linearSleepTolerance;m=A.b2_angularSleepTolerance*A.b2_angularSleepTolerance;for(b=0;b<this.m_bodyCount;++b){e=
+this.m_bodies[b];if(e.GetType()!=k.b2_staticBody){if((e.m_flags&k.e_allowSleepFlag)==0)g=e.m_sleepTime=0;if((e.m_flags&k.e_allowSleepFlag)==0||e.m_angularVelocity*e.m_angularVelocity>m||F.Dot(e.m_linearVelocity,e.m_linearVelocity)>c)g=e.m_sleepTime=0;else{e.m_sleepTime+=a.dt;g=F.Min(g,e.m_sleepTime)}}}if(g>=A.b2_timeToSleep)for(b=0;b<this.m_bodyCount;++b){e=this.m_bodies[b];e.SetAwake(false)}}};Z.prototype.SolveTOI=function(a){var c=0,g=0;this.m_contactSolver.Initialize(a,this.m_contacts,this.m_contactCount,
+this.m_allocator);var b=this.m_contactSolver;for(c=0;c<this.m_jointCount;++c)this.m_joints[c].InitVelocityConstraints(a);for(c=0;c<a.velocityIterations;++c){b.SolveVelocityConstraints();for(g=0;g<this.m_jointCount;++g)this.m_joints[g].SolveVelocityConstraints(a)}for(c=0;c<this.m_bodyCount;++c){g=this.m_bodies[c];if(g.GetType()!=k.b2_staticBody){var e=a.dt*g.m_linearVelocity.x,f=a.dt*g.m_linearVelocity.y;if(e*e+f*f>A.b2_maxTranslationSquared){g.m_linearVelocity.Normalize();g.m_linearVelocity.x*=A.b2_maxTranslation*
+a.inv_dt;g.m_linearVelocity.y*=A.b2_maxTranslation*a.inv_dt}e=a.dt*g.m_angularVelocity;if(e*e>A.b2_maxRotationSquared)g.m_angularVelocity=g.m_angularVelocity<0?-A.b2_maxRotation*a.inv_dt:A.b2_maxRotation*a.inv_dt;g.m_sweep.c0.SetV(g.m_sweep.c);g.m_sweep.a0=g.m_sweep.a;g.m_sweep.c.x+=a.dt*g.m_linearVelocity.x;g.m_sweep.c.y+=a.dt*g.m_linearVelocity.y;g.m_sweep.a+=a.dt*g.m_angularVelocity;g.SynchronizeTransform()}}for(c=0;c<a.positionIterations;++c){e=b.SolvePositionConstraints(0.75);f=true;for(g=0;g<
+this.m_jointCount;++g){var m=this.m_joints[g].SolvePositionConstraints(A.b2_contactBaumgarte);f=f&&m}if(e&&f)break}this.Report(b.m_constraints)};Z.prototype.Report=function(a){if(this.m_listener!=null)for(var c=0;c<this.m_contactCount;++c){for(var g=this.m_contacts[c],b=a[c],e=0;e<b.pointCount;++e){Z.s_impulse.normalImpulses[e]=b.points[e].normalImpulse;Z.s_impulse.tangentImpulses[e]=b.points[e].tangentImpulse}this.m_listener.PostSolve(g,Z.s_impulse)}};Z.prototype.AddBody=function(a){a.m_islandIndex=
+this.m_bodyCount;this.m_bodies[this.m_bodyCount++]=a};Z.prototype.AddContact=function(a){this.m_contacts[this.m_contactCount++]=a};Z.prototype.AddJoint=function(a){this.m_joints[this.m_jointCount++]=a};Box2D.postDefs.push(function(){Box2D.Dynamics.b2Island.s_impulse=new D});d.b2TimeStep=function(){};d.prototype.Set=function(a){this.dt=a.dt;this.inv_dt=a.inv_dt;this.positionIterations=a.positionIterations;this.velocityIterations=a.velocityIterations;this.warmStarting=a.warmStarting};h.b2World=function(){this.s_stack=
+new Vector;this.m_contactManager=new O;this.m_contactSolver=new o;this.m_island=new Z};h.prototype.b2World=function(a,c){this.m_controllerList=this.m_jointList=this.m_contactList=this.m_bodyList=this.m_debugDraw=this.m_destructionListener=null;this.m_controllerCount=this.m_jointCount=this.m_contactCount=this.m_bodyCount=0;h.m_warmStarting=true;h.m_continuousPhysics=true;this.m_allowSleep=c;this.m_gravity=a;this.m_inv_dt0=0;this.m_contactManager.m_world=this;this.m_groundBody=this.CreateBody(new z)};
+h.prototype.SetDestructionListener=function(a){this.m_destructionListener=a};h.prototype.SetContactFilter=function(a){this.m_contactManager.m_contactFilter=a};h.prototype.SetContactListener=function(a){this.m_contactManager.m_contactListener=a};h.prototype.SetDebugDraw=function(a){this.m_debugDraw=a};h.prototype.SetBroadPhase=function(a){var c=this.m_contactManager.m_broadPhase;this.m_contactManager.m_broadPhase=a;for(var g=this.m_bodyList;g;g=g.m_next)for(var b=g.m_fixtureList;b;b=b.m_next)b.m_proxy=
+a.CreateProxy(c.GetFatAABB(b.m_proxy),b)};h.prototype.Validate=function(){this.m_contactManager.m_broadPhase.Validate()};h.prototype.GetProxyCount=function(){return this.m_contactManager.m_broadPhase.GetProxyCount()};h.prototype.CreateBody=function(a){if(this.IsLocked()==true)return null;a=new k(a,this);a.m_prev=null;if(a.m_next=this.m_bodyList)this.m_bodyList.m_prev=a;this.m_bodyList=a;++this.m_bodyCount;return a};h.prototype.DestroyBody=function(a){if(this.IsLocked()!=true){for(var c=a.m_jointList;c;){var g=
+c;c=c.next;this.m_destructionListener&&this.m_destructionListener.SayGoodbyeJoint(g.joint);this.DestroyJoint(g.joint)}for(c=a.m_controllerList;c;){g=c;c=c.nextController;g.controller.RemoveBody(a)}for(c=a.m_contactList;c;){g=c;c=c.next;this.m_contactManager.Destroy(g.contact)}a.m_contactList=null;for(c=a.m_fixtureList;c;){g=c;c=c.m_next;this.m_destructionListener&&this.m_destructionListener.SayGoodbyeFixture(g);g.DestroyProxy(this.m_contactManager.m_broadPhase);g.Destroy()}a.m_fixtureList=null;a.m_fixtureCount=
+0;if(a.m_prev)a.m_prev.m_next=a.m_next;if(a.m_next)a.m_next.m_prev=a.m_prev;if(a==this.m_bodyList)this.m_bodyList=a.m_next;--this.m_bodyCount}};h.prototype.CreateJoint=function(a){var c=q.Create(a,null);c.m_prev=null;if(c.m_next=this.m_jointList)this.m_jointList.m_prev=c;this.m_jointList=c;++this.m_jointCount;c.m_edgeA.joint=c;c.m_edgeA.other=c.m_bodyB;c.m_edgeA.prev=null;if(c.m_edgeA.next=c.m_bodyA.m_jointList)c.m_bodyA.m_jointList.prev=c.m_edgeA;c.m_bodyA.m_jointList=c.m_edgeA;c.m_edgeB.joint=c;
+c.m_edgeB.other=c.m_bodyA;c.m_edgeB.prev=null;if(c.m_edgeB.next=c.m_bodyB.m_jointList)c.m_bodyB.m_jointList.prev=c.m_edgeB;c.m_bodyB.m_jointList=c.m_edgeB;var g=a.bodyA,b=a.bodyB;if(a.collideConnected==false)for(a=b.GetContactList();a;){a.other==g&&a.contact.FlagForFiltering();a=a.next}return c};h.prototype.DestroyJoint=function(a){var c=a.m_collideConnected;if(a.m_prev)a.m_prev.m_next=a.m_next;if(a.m_next)a.m_next.m_prev=a.m_prev;if(a==this.m_jointList)this.m_jointList=a.m_next;var g=a.m_bodyA,b=
+a.m_bodyB;g.SetAwake(true);b.SetAwake(true);if(a.m_edgeA.prev)a.m_edgeA.prev.next=a.m_edgeA.next;if(a.m_edgeA.next)a.m_edgeA.next.prev=a.m_edgeA.prev;if(a.m_edgeA==g.m_jointList)g.m_jointList=a.m_edgeA.next;a.m_edgeA.prev=null;a.m_edgeA.next=null;if(a.m_edgeB.prev)a.m_edgeB.prev.next=a.m_edgeB.next;if(a.m_edgeB.next)a.m_edgeB.next.prev=a.m_edgeB.prev;if(a.m_edgeB==b.m_jointList)b.m_jointList=a.m_edgeB.next;a.m_edgeB.prev=null;a.m_edgeB.next=null;q.Destroy(a,null);--this.m_jointCount;if(c==false)for(a=
+b.GetContactList();a;){a.other==g&&a.contact.FlagForFiltering();a=a.next}};h.prototype.AddController=function(a){a.m_next=this.m_controllerList;a.m_prev=null;this.m_controllerList=a;a.m_world=this;this.m_controllerCount++;return a};h.prototype.RemoveController=function(a){if(a.m_prev)a.m_prev.m_next=a.m_next;if(a.m_next)a.m_next.m_prev=a.m_prev;if(this.m_controllerList==a)this.m_controllerList=a.m_next;this.m_controllerCount--};h.prototype.CreateController=function(a){if(a.m_world!=this)throw Error("Controller can only be a member of one world");
+a.m_next=this.m_controllerList;a.m_prev=null;if(this.m_controllerList)this.m_controllerList.m_prev=a;this.m_controllerList=a;++this.m_controllerCount;a.m_world=this;return a};h.prototype.DestroyController=function(a){a.Clear();if(a.m_next)a.m_next.m_prev=a.m_prev;if(a.m_prev)a.m_prev.m_next=a.m_next;if(a==this.m_controllerList)this.m_controllerList=a.m_next;--this.m_controllerCount};h.prototype.SetWarmStarting=function(a){h.m_warmStarting=a};h.prototype.SetContinuousPhysics=function(a){h.m_continuousPhysics=
+a};h.prototype.GetBodyCount=function(){return this.m_bodyCount};h.prototype.GetJointCount=function(){return this.m_jointCount};h.prototype.GetContactCount=function(){return this.m_contactCount};h.prototype.SetGravity=function(a){this.m_gravity=a};h.prototype.GetGravity=function(){return this.m_gravity};h.prototype.GetGroundBody=function(){return this.m_groundBody};h.prototype.Step=function(a,c,g){if(a===undefined)a=0;if(c===undefined)c=0;if(g===undefined)g=0;if(this.m_flags&h.e_newFixture){this.m_contactManager.FindNewContacts();
+this.m_flags&=~h.e_newFixture}this.m_flags|=h.e_locked;var b=h.s_timestep2;b.dt=a;b.velocityIterations=c;b.positionIterations=g;b.inv_dt=a>0?1/a:0;b.dtRatio=this.m_inv_dt0*a;b.warmStarting=h.m_warmStarting;this.m_contactManager.Collide();b.dt>0&&this.Solve(b);h.m_continuousPhysics&&b.dt>0&&this.SolveTOI(b);if(b.dt>0)this.m_inv_dt0=b.inv_dt;this.m_flags&=~h.e_locked};h.prototype.ClearForces=function(){for(var a=this.m_bodyList;a;a=a.m_next){a.m_force.SetZero();a.m_torque=0}};h.prototype.DrawDebugData=
+function(){if(this.m_debugDraw!=null){this.m_debugDraw.m_sprite.graphics.clear();var a=this.m_debugDraw.GetFlags(),c,g,b;new y;new y;new y;var e;new U;new U;e=[new y,new y,new y,new y];var f=new w(0,0,0);if(a&E.e_shapeBit)for(c=this.m_bodyList;c;c=c.m_next){e=c.m_xf;for(g=c.GetFixtureList();g;g=g.m_next){b=g.GetShape();if(c.IsActive()==false)f.Set(0.5,0.5,0.3);else if(c.GetType()==k.b2_staticBody)f.Set(0.5,0.9,0.5);else if(c.GetType()==k.b2_kinematicBody)f.Set(0.5,0.5,0.9);else c.IsAwake()==false?
+f.Set(0.6,0.6,0.6):f.Set(0.9,0.7,0.7);this.DrawShape(b,e,f)}}if(a&E.e_jointBit)for(c=this.m_jointList;c;c=c.m_next)this.DrawJoint(c);if(a&E.e_controllerBit)for(c=this.m_controllerList;c;c=c.m_next)c.Draw(this.m_debugDraw);if(a&E.e_pairBit){f.Set(0.3,0.9,0.9);for(c=this.m_contactManager.m_contactList;c;c=c.GetNext()){b=c.GetFixtureA();g=c.GetFixtureB();b=b.GetAABB().GetCenter();g=g.GetAABB().GetCenter();this.m_debugDraw.DrawSegment(b,g,f)}}if(a&E.e_aabbBit){b=this.m_contactManager.m_broadPhase;e=[new y,
+new y,new y,new y];for(c=this.m_bodyList;c;c=c.GetNext())if(c.IsActive()!=false)for(g=c.GetFixtureList();g;g=g.GetNext()){var m=b.GetFatAABB(g.m_proxy);e[0].Set(m.lowerBound.x,m.lowerBound.y);e[1].Set(m.upperBound.x,m.lowerBound.y);e[2].Set(m.upperBound.x,m.upperBound.y);e[3].Set(m.lowerBound.x,m.upperBound.y);this.m_debugDraw.DrawPolygon(e,4,f)}}if(a&E.e_centerOfMassBit)for(c=this.m_bodyList;c;c=c.m_next){e=h.s_xf;e.R=c.m_xf.R;e.position=c.GetWorldCenter();this.m_debugDraw.DrawTransform(e)}}};h.prototype.QueryAABB=
+function(a,c){var g=this.m_contactManager.m_broadPhase;g.Query(function(b){return a(g.GetUserData(b))},c)};h.prototype.QueryShape=function(a,c,g){if(g===undefined)g=null;if(g==null){g=new K;g.SetIdentity()}var b=this.m_contactManager.m_broadPhase,e=new U;c.ComputeAABB(e,g);b.Query(function(f){f=b.GetUserData(f)instanceof S?b.GetUserData(f):null;if(Y.TestOverlap(c,g,f.GetShape(),f.GetBody().GetTransform()))return a(f);return true},e)};h.prototype.QueryPoint=function(a,c){var g=this.m_contactManager.m_broadPhase,
+b=new U;b.lowerBound.Set(c.x-A.b2_linearSlop,c.y-A.b2_linearSlop);b.upperBound.Set(c.x+A.b2_linearSlop,c.y+A.b2_linearSlop);g.Query(function(e){e=g.GetUserData(e)instanceof S?g.GetUserData(e):null;if(e.TestPoint(c))return a(e);return true},b)};h.prototype.RayCast=function(a,c,g){var b=this.m_contactManager.m_broadPhase,e=new V,f=new Q(c,g);b.RayCast(function(m,r){var s=b.GetUserData(r);s=s instanceof S?s:null;if(s.RayCast(e,m)){var v=e.fraction,t=new y((1-v)*c.x+v*g.x,(1-v)*c.y+v*g.y);return a(s,
+t,e.normal,v)}return m.maxFraction},f)};h.prototype.RayCastOne=function(a,c){var g;this.RayCast(function(b,e,f,m){if(m===undefined)m=0;g=b;return m},a,c);return g};h.prototype.RayCastAll=function(a,c){var g=new Vector;this.RayCast(function(b){g[g.length]=b;return 1},a,c);return g};h.prototype.GetBodyList=function(){return this.m_bodyList};h.prototype.GetJointList=function(){return this.m_jointList};h.prototype.GetContactList=function(){return this.m_contactList};h.prototype.IsLocked=function(){return(this.m_flags&
+h.e_locked)>0};h.prototype.Solve=function(a){for(var c,g=this.m_controllerList;g;g=g.m_next)g.Step(a);g=this.m_island;g.Initialize(this.m_bodyCount,this.m_contactCount,this.m_jointCount,null,this.m_contactManager.m_contactListener,this.m_contactSolver);for(c=this.m_bodyList;c;c=c.m_next)c.m_flags&=~k.e_islandFlag;for(var b=this.m_contactList;b;b=b.m_next)b.m_flags&=~l.e_islandFlag;for(b=this.m_jointList;b;b=b.m_next)b.m_islandFlag=false;parseInt(this.m_bodyCount);b=this.s_stack;for(var e=this.m_bodyList;e;e=
+e.m_next)if(!(e.m_flags&k.e_islandFlag))if(!(e.IsAwake()==false||e.IsActive()==false))if(e.GetType()!=k.b2_staticBody){g.Clear();var f=0;b[f++]=e;for(e.m_flags|=k.e_islandFlag;f>0;){c=b[--f];g.AddBody(c);c.IsAwake()==false&&c.SetAwake(true);if(c.GetType()!=k.b2_staticBody){for(var m,r=c.m_contactList;r;r=r.next)if(!(r.contact.m_flags&l.e_islandFlag))if(!(r.contact.IsSensor()==true||r.contact.IsEnabled()==false||r.contact.IsTouching()==false)){g.AddContact(r.contact);r.contact.m_flags|=l.e_islandFlag;
+m=r.other;if(!(m.m_flags&k.e_islandFlag)){b[f++]=m;m.m_flags|=k.e_islandFlag}}for(c=c.m_jointList;c;c=c.next)if(c.joint.m_islandFlag!=true){m=c.other;if(m.IsActive()!=false){g.AddJoint(c.joint);c.joint.m_islandFlag=true;if(!(m.m_flags&k.e_islandFlag)){b[f++]=m;m.m_flags|=k.e_islandFlag}}}}}g.Solve(a,this.m_gravity,this.m_allowSleep);for(f=0;f<g.m_bodyCount;++f){c=g.m_bodies[f];if(c.GetType()==k.b2_staticBody)c.m_flags&=~k.e_islandFlag}}for(f=0;f<b.length;++f){if(!b[f])break;b[f]=null}for(c=this.m_bodyList;c;c=
+c.m_next)c.IsAwake()==false||c.IsActive()==false||c.GetType()!=k.b2_staticBody&&c.SynchronizeFixtures();this.m_contactManager.FindNewContacts()};h.prototype.SolveTOI=function(a){var c,g,b,e=this.m_island;e.Initialize(this.m_bodyCount,A.b2_maxTOIContactsPerIsland,A.b2_maxTOIJointsPerIsland,null,this.m_contactManager.m_contactListener,this.m_contactSolver);var f=h.s_queue;for(c=this.m_bodyList;c;c=c.m_next){c.m_flags&=~k.e_islandFlag;c.m_sweep.t0=0}for(b=this.m_contactList;b;b=b.m_next)b.m_flags&=~(l.e_toiFlag|
+l.e_islandFlag);for(b=this.m_jointList;b;b=b.m_next)b.m_islandFlag=false;for(;;){var m=null,r=1;for(b=this.m_contactList;b;b=b.m_next)if(!(b.IsSensor()==true||b.IsEnabled()==false||b.IsContinuous()==false)){c=1;if(b.m_flags&l.e_toiFlag)c=b.m_toi;else{c=b.m_fixtureA;g=b.m_fixtureB;c=c.m_body;g=g.m_body;if((c.GetType()!=k.b2_dynamicBody||c.IsAwake()==false)&&(g.GetType()!=k.b2_dynamicBody||g.IsAwake()==false))continue;var s=c.m_sweep.t0;if(c.m_sweep.t0<g.m_sweep.t0){s=g.m_sweep.t0;c.m_sweep.Advance(s)}else if(g.m_sweep.t0<
+c.m_sweep.t0){s=c.m_sweep.t0;g.m_sweep.Advance(s)}c=b.ComputeTOI(c.m_sweep,g.m_sweep);A.b2Assert(0<=c&&c<=1);if(c>0&&c<1){c=(1-c)*s+c;if(c>1)c=1}b.m_toi=c;b.m_flags|=l.e_toiFlag}if(Number.MIN_VALUE<c&&c<r){m=b;r=c}}if(m==null||1-100*Number.MIN_VALUE<r)break;c=m.m_fixtureA;g=m.m_fixtureB;c=c.m_body;g=g.m_body;h.s_backupA.Set(c.m_sweep);h.s_backupB.Set(g.m_sweep);c.Advance(r);g.Advance(r);m.Update(this.m_contactManager.m_contactListener);m.m_flags&=~l.e_toiFlag;if(m.IsSensor()==true||m.IsEnabled()==
+false){c.m_sweep.Set(h.s_backupA);g.m_sweep.Set(h.s_backupB);c.SynchronizeTransform();g.SynchronizeTransform()}else if(m.IsTouching()!=false){c=c;if(c.GetType()!=k.b2_dynamicBody)c=g;e.Clear();m=b=0;f[b+m++]=c;for(c.m_flags|=k.e_islandFlag;m>0;){c=f[b++];--m;e.AddBody(c);c.IsAwake()==false&&c.SetAwake(true);if(c.GetType()==k.b2_dynamicBody){for(g=c.m_contactList;g;g=g.next){if(e.m_contactCount==e.m_contactCapacity)break;if(!(g.contact.m_flags&l.e_islandFlag))if(!(g.contact.IsSensor()==true||g.contact.IsEnabled()==
+false||g.contact.IsTouching()==false)){e.AddContact(g.contact);g.contact.m_flags|=l.e_islandFlag;s=g.other;if(!(s.m_flags&k.e_islandFlag)){if(s.GetType()!=k.b2_staticBody){s.Advance(r);s.SetAwake(true)}f[b+m]=s;++m;s.m_flags|=k.e_islandFlag}}}for(c=c.m_jointList;c;c=c.next)if(e.m_jointCount!=e.m_jointCapacity)if(c.joint.m_islandFlag!=true){s=c.other;if(s.IsActive()!=false){e.AddJoint(c.joint);c.joint.m_islandFlag=true;if(!(s.m_flags&k.e_islandFlag)){if(s.GetType()!=k.b2_staticBody){s.Advance(r);s.SetAwake(true)}f[b+
+m]=s;++m;s.m_flags|=k.e_islandFlag}}}}}b=h.s_timestep;b.warmStarting=false;b.dt=(1-r)*a.dt;b.inv_dt=1/b.dt;b.dtRatio=0;b.velocityIterations=a.velocityIterations;b.positionIterations=a.positionIterations;e.SolveTOI(b);for(r=r=0;r<e.m_bodyCount;++r){c=e.m_bodies[r];c.m_flags&=~k.e_islandFlag;if(c.IsAwake()!=false)if(c.GetType()==k.b2_dynamicBody){c.SynchronizeFixtures();for(g=c.m_contactList;g;g=g.next)g.contact.m_flags&=~l.e_toiFlag}}for(r=0;r<e.m_contactCount;++r){b=e.m_contacts[r];b.m_flags&=~(l.e_toiFlag|
+l.e_islandFlag)}for(r=0;r<e.m_jointCount;++r){b=e.m_joints[r];b.m_islandFlag=false}this.m_contactManager.FindNewContacts()}}};h.prototype.DrawJoint=function(a){var c=a.GetBodyA(),g=a.GetBodyB(),b=c.m_xf.position,e=g.m_xf.position,f=a.GetAnchorA(),m=a.GetAnchorB(),r=h.s_jointColor;switch(a.m_type){case q.e_distanceJoint:this.m_debugDraw.DrawSegment(f,m,r);break;case q.e_pulleyJoint:c=a instanceof n?a:null;a=c.GetGroundAnchorA();c=c.GetGroundAnchorB();this.m_debugDraw.DrawSegment(a,f,r);this.m_debugDraw.DrawSegment(c,
+m,r);this.m_debugDraw.DrawSegment(a,c,r);break;case q.e_mouseJoint:this.m_debugDraw.DrawSegment(f,m,r);break;default:c!=this.m_groundBody&&this.m_debugDraw.DrawSegment(b,f,r);this.m_debugDraw.DrawSegment(f,m,r);g!=this.m_groundBody&&this.m_debugDraw.DrawSegment(e,m,r)}};h.prototype.DrawShape=function(a,c,g){switch(a.m_type){case Y.e_circleShape:var b=a instanceof M?a:null;this.m_debugDraw.DrawSolidCircle(F.MulX(c,b.m_p),b.m_radius,c.R.col1,g);break;case Y.e_polygonShape:b=0;b=a instanceof W?a:null;
+a=parseInt(b.GetVertexCount());var e=b.GetVertices(),f=new Vector(a);for(b=0;b<a;++b)f[b]=F.MulX(c,e[b]);this.m_debugDraw.DrawSolidPolygon(f,a,g);break;case Y.e_edgeShape:b=a instanceof L?a:null;this.m_debugDraw.DrawSegment(F.MulX(c,b.GetVertex1()),F.MulX(c,b.GetVertex2()),g)}};Box2D.postDefs.push(function(){Box2D.Dynamics.b2World.s_timestep2=new d;Box2D.Dynamics.b2World.s_xf=new K;Box2D.Dynamics.b2World.s_backupA=new G;Box2D.Dynamics.b2World.s_backupB=new G;Box2D.Dynamics.b2World.s_timestep=new d;
+Box2D.Dynamics.b2World.s_queue=new Vector;Box2D.Dynamics.b2World.s_jointColor=new w(0.5,0.8,0.8);Box2D.Dynamics.b2World.e_newFixture=1;Box2D.Dynamics.b2World.e_locked=2})})();
+(function(){var F=Box2D.Collision.Shapes.b2CircleShape,G=Box2D.Collision.Shapes.b2EdgeShape,K=Box2D.Collision.Shapes.b2PolygonShape,y=Box2D.Collision.Shapes.b2Shape,w=Box2D.Dynamics.Contacts.b2CircleContact,A=Box2D.Dynamics.Contacts.b2Contact,U=Box2D.Dynamics.Contacts.b2ContactConstraint,p=Box2D.Dynamics.Contacts.b2ContactConstraintPoint,B=Box2D.Dynamics.Contacts.b2ContactEdge,Q=Box2D.Dynamics.Contacts.b2ContactFactory,V=Box2D.Dynamics.Contacts.b2ContactRegister,M=Box2D.Dynamics.Contacts.b2ContactResult,
+L=Box2D.Dynamics.Contacts.b2ContactSolver,I=Box2D.Dynamics.Contacts.b2EdgeAndCircleContact,W=Box2D.Dynamics.Contacts.b2NullContact,Y=Box2D.Dynamics.Contacts.b2PolyAndCircleContact,k=Box2D.Dynamics.Contacts.b2PolyAndEdgeContact,z=Box2D.Dynamics.Contacts.b2PolygonContact,u=Box2D.Dynamics.Contacts.b2PositionSolverManifold,D=Box2D.Dynamics.b2Body,H=Box2D.Dynamics.b2TimeStep,O=Box2D.Common.b2Settings,E=Box2D.Common.Math.b2Mat22,R=Box2D.Common.Math.b2Math,N=Box2D.Common.Math.b2Vec2,S=Box2D.Collision.b2Collision,
+aa=Box2D.Collision.b2ContactID,Z=Box2D.Collision.b2Manifold,d=Box2D.Collision.b2TimeOfImpact,h=Box2D.Collision.b2TOIInput,l=Box2D.Collision.b2WorldManifold;Box2D.inherit(w,Box2D.Dynamics.Contacts.b2Contact);w.prototype.__super=Box2D.Dynamics.Contacts.b2Contact.prototype;w.b2CircleContact=function(){Box2D.Dynamics.Contacts.b2Contact.b2Contact.apply(this,arguments)};w.Create=function(){return new w};w.Destroy=function(){};w.prototype.Reset=function(j,o){this.__super.Reset.call(this,j,o)};w.prototype.Evaluate=
+function(){var j=this.m_fixtureA.GetBody(),o=this.m_fixtureB.GetBody();S.CollideCircles(this.m_manifold,this.m_fixtureA.GetShape()instanceof F?this.m_fixtureA.GetShape():null,j.m_xf,this.m_fixtureB.GetShape()instanceof F?this.m_fixtureB.GetShape():null,o.m_xf)};A.b2Contact=function(){this.m_nodeA=new B;this.m_nodeB=new B;this.m_manifold=new Z;this.m_oldManifold=new Z};A.prototype.GetManifold=function(){return this.m_manifold};A.prototype.GetWorldManifold=function(j){var o=this.m_fixtureA.GetBody(),
+q=this.m_fixtureB.GetBody(),n=this.m_fixtureA.GetShape(),a=this.m_fixtureB.GetShape();j.Initialize(this.m_manifold,o.GetTransform(),n.m_radius,q.GetTransform(),a.m_radius)};A.prototype.IsTouching=function(){return(this.m_flags&A.e_touchingFlag)==A.e_touchingFlag};A.prototype.IsContinuous=function(){return(this.m_flags&A.e_continuousFlag)==A.e_continuousFlag};A.prototype.SetSensor=function(j){if(j)this.m_flags|=A.e_sensorFlag;else this.m_flags&=~A.e_sensorFlag};A.prototype.IsSensor=function(){return(this.m_flags&
+A.e_sensorFlag)==A.e_sensorFlag};A.prototype.SetEnabled=function(j){if(j)this.m_flags|=A.e_enabledFlag;else this.m_flags&=~A.e_enabledFlag};A.prototype.IsEnabled=function(){return(this.m_flags&A.e_enabledFlag)==A.e_enabledFlag};A.prototype.GetNext=function(){return this.m_next};A.prototype.GetFixtureA=function(){return this.m_fixtureA};A.prototype.GetFixtureB=function(){return this.m_fixtureB};A.prototype.FlagForFiltering=function(){this.m_flags|=A.e_filterFlag};A.prototype.b2Contact=function(){};
+A.prototype.Reset=function(j,o){if(j===undefined)j=null;if(o===undefined)o=null;this.m_flags=A.e_enabledFlag;if(!j||!o)this.m_fixtureB=this.m_fixtureA=null;else{if(j.IsSensor()||o.IsSensor())this.m_flags|=A.e_sensorFlag;var q=j.GetBody(),n=o.GetBody();if(q.GetType()!=D.b2_dynamicBody||q.IsBullet()||n.GetType()!=D.b2_dynamicBody||n.IsBullet())this.m_flags|=A.e_continuousFlag;this.m_fixtureA=j;this.m_fixtureB=o;this.m_manifold.m_pointCount=0;this.m_next=this.m_prev=null;this.m_nodeA.contact=null;this.m_nodeA.prev=
+null;this.m_nodeA.next=null;this.m_nodeA.other=null;this.m_nodeB.contact=null;this.m_nodeB.prev=null;this.m_nodeB.next=null;this.m_nodeB.other=null}};A.prototype.Update=function(j){var o=this.m_oldManifold;this.m_oldManifold=this.m_manifold;this.m_manifold=o;this.m_flags|=A.e_enabledFlag;var q=false;o=(this.m_flags&A.e_touchingFlag)==A.e_touchingFlag;var n=this.m_fixtureA.m_body,a=this.m_fixtureB.m_body,c=this.m_fixtureA.m_aabb.TestOverlap(this.m_fixtureB.m_aabb);if(this.m_flags&A.e_sensorFlag){if(c){q=
+this.m_fixtureA.GetShape();c=this.m_fixtureB.GetShape();n=n.GetTransform();a=a.GetTransform();q=y.TestOverlap(q,n,c,a)}this.m_manifold.m_pointCount=0}else{if(n.GetType()!=D.b2_dynamicBody||n.IsBullet()||a.GetType()!=D.b2_dynamicBody||a.IsBullet())this.m_flags|=A.e_continuousFlag;else this.m_flags&=~A.e_continuousFlag;if(c){this.Evaluate();q=this.m_manifold.m_pointCount>0;for(c=0;c<this.m_manifold.m_pointCount;++c){var g=this.m_manifold.m_points[c];g.m_normalImpulse=0;g.m_tangentImpulse=0;for(var b=
+g.m_id,e=0;e<this.m_oldManifold.m_pointCount;++e){var f=this.m_oldManifold.m_points[e];if(f.m_id.key==b.key){g.m_normalImpulse=f.m_normalImpulse;g.m_tangentImpulse=f.m_tangentImpulse;break}}}}else this.m_manifold.m_pointCount=0;if(q!=o){n.SetAwake(true);a.SetAwake(true)}}if(q)this.m_flags|=A.e_touchingFlag;else this.m_flags&=~A.e_touchingFlag;o==false&&q==true&&j.BeginContact(this);o==true&&q==false&&j.EndContact(this);(this.m_flags&A.e_sensorFlag)==0&&j.PreSolve(this,this.m_oldManifold)};A.prototype.Evaluate=
+function(){};A.prototype.ComputeTOI=function(j,o){A.s_input.proxyA.Set(this.m_fixtureA.GetShape());A.s_input.proxyB.Set(this.m_fixtureB.GetShape());A.s_input.sweepA=j;A.s_input.sweepB=o;A.s_input.tolerance=O.b2_linearSlop;return d.TimeOfImpact(A.s_input)};Box2D.postDefs.push(function(){Box2D.Dynamics.Contacts.b2Contact.e_sensorFlag=1;Box2D.Dynamics.Contacts.b2Contact.e_continuousFlag=2;Box2D.Dynamics.Contacts.b2Contact.e_islandFlag=4;Box2D.Dynamics.Contacts.b2Contact.e_toiFlag=8;Box2D.Dynamics.Contacts.b2Contact.e_touchingFlag=
+16;Box2D.Dynamics.Contacts.b2Contact.e_enabledFlag=32;Box2D.Dynamics.Contacts.b2Contact.e_filterFlag=64;Box2D.Dynamics.Contacts.b2Contact.s_input=new h});U.b2ContactConstraint=function(){this.localPlaneNormal=new N;this.localPoint=new N;this.normal=new N;this.normalMass=new E;this.K=new E};U.prototype.b2ContactConstraint=function(){this.points=new Vector(O.b2_maxManifoldPoints);for(var j=0;j<O.b2_maxManifoldPoints;j++)this.points[j]=new p};p.b2ContactConstraintPoint=function(){this.localPoint=new N;
+this.rA=new N;this.rB=new N};B.b2ContactEdge=function(){};Q.b2ContactFactory=function(){};Q.prototype.b2ContactFactory=function(j){this.m_allocator=j;this.InitializeRegisters()};Q.prototype.AddType=function(j,o,q,n){if(q===undefined)q=0;if(n===undefined)n=0;this.m_registers[q][n].createFcn=j;this.m_registers[q][n].destroyFcn=o;this.m_registers[q][n].primary=true;if(q!=n){this.m_registers[n][q].createFcn=j;this.m_registers[n][q].destroyFcn=o;this.m_registers[n][q].primary=false}};Q.prototype.InitializeRegisters=
+function(){this.m_registers=new Vector(y.e_shapeTypeCount);for(var j=0;j<y.e_shapeTypeCount;j++){this.m_registers[j]=new Vector(y.e_shapeTypeCount);for(var o=0;o<y.e_shapeTypeCount;o++)this.m_registers[j][o]=new V}this.AddType(w.Create,w.Destroy,y.e_circleShape,y.e_circleShape);this.AddType(Y.Create,Y.Destroy,y.e_polygonShape,y.e_circleShape);this.AddType(z.Create,z.Destroy,y.e_polygonShape,y.e_polygonShape);this.AddType(I.Create,I.Destroy,y.e_edgeShape,y.e_circleShape);this.AddType(k.Create,k.Destroy,
+y.e_polygonShape,y.e_edgeShape)};Q.prototype.Create=function(j,o){var q=parseInt(j.GetType()),n=parseInt(o.GetType());q=this.m_registers[q][n];if(q.pool){n=q.pool;q.pool=n.m_next;q.poolCount--;n.Reset(j,o);return n}n=q.createFcn;if(n!=null){if(q.primary){n=n(this.m_allocator);n.Reset(j,o)}else{n=n(this.m_allocator);n.Reset(o,j)}return n}else return null};Q.prototype.Destroy=function(j){if(j.m_manifold.m_pointCount>0){j.m_fixtureA.m_body.SetAwake(true);j.m_fixtureB.m_body.SetAwake(true)}var o=parseInt(j.m_fixtureA.GetType()),
+q=parseInt(j.m_fixtureB.GetType());o=this.m_registers[o][q];o.poolCount++;j.m_next=o.pool;o.pool=j;o=o.destroyFcn;o(j,this.m_allocator)};V.b2ContactRegister=function(){};M.b2ContactResult=function(){this.position=new N;this.normal=new N;this.id=new aa};L.b2ContactSolver=function(){this.m_step=new H;this.m_constraints=new Vector};L.prototype.b2ContactSolver=function(){};L.prototype.Initialize=function(j,o,q,n){if(q===undefined)q=0;var a;this.m_step.Set(j);this.m_allocator=n;j=0;for(this.m_constraintCount=
+q;this.m_constraints.length<this.m_constraintCount;)this.m_constraints[this.m_constraints.length]=new U;for(j=0;j<q;++j){a=o[j];n=a.m_fixtureA;var c=a.m_fixtureB,g=n.m_shape.m_radius,b=c.m_shape.m_radius,e=n.m_body,f=c.m_body,m=a.GetManifold(),r=O.b2MixFriction(n.GetFriction(),c.GetFriction()),s=O.b2MixRestitution(n.GetRestitution(),c.GetRestitution()),v=e.m_linearVelocity.x,t=e.m_linearVelocity.y,x=f.m_linearVelocity.x,C=f.m_linearVelocity.y,J=e.m_angularVelocity,T=f.m_angularVelocity;O.b2Assert(m.m_pointCount>
+0);L.s_worldManifold.Initialize(m,e.m_xf,g,f.m_xf,b);c=L.s_worldManifold.m_normal.x;a=L.s_worldManifold.m_normal.y;n=this.m_constraints[j];n.bodyA=e;n.bodyB=f;n.manifold=m;n.normal.x=c;n.normal.y=a;n.pointCount=m.m_pointCount;n.friction=r;n.restitution=s;n.localPlaneNormal.x=m.m_localPlaneNormal.x;n.localPlaneNormal.y=m.m_localPlaneNormal.y;n.localPoint.x=m.m_localPoint.x;n.localPoint.y=m.m_localPoint.y;n.radius=g+b;n.type=m.m_type;for(g=0;g<n.pointCount;++g){r=m.m_points[g];b=n.points[g];b.normalImpulse=
+r.m_normalImpulse;b.tangentImpulse=r.m_tangentImpulse;b.localPoint.SetV(r.m_localPoint);r=b.rA.x=L.s_worldManifold.m_points[g].x-e.m_sweep.c.x;s=b.rA.y=L.s_worldManifold.m_points[g].y-e.m_sweep.c.y;var P=b.rB.x=L.s_worldManifold.m_points[g].x-f.m_sweep.c.x,X=b.rB.y=L.s_worldManifold.m_points[g].y-f.m_sweep.c.y,$=r*a-s*c,ba=P*a-X*c;$*=$;ba*=ba;b.normalMass=1/(e.m_invMass+f.m_invMass+e.m_invI*$+f.m_invI*ba);var ca=e.m_mass*e.m_invMass+f.m_mass*f.m_invMass;ca+=e.m_mass*e.m_invI*$+f.m_mass*f.m_invI*ba;
+b.equalizedMass=1/ca;ba=a;ca=-c;$=r*ca-s*ba;ba=P*ca-X*ba;$*=$;ba*=ba;b.tangentMass=1/(e.m_invMass+f.m_invMass+e.m_invI*$+f.m_invI*ba);b.velocityBias=0;r=n.normal.x*(x+-T*X-v- -J*s)+n.normal.y*(C+T*P-t-J*r);if(r<-O.b2_velocityThreshold)b.velocityBias+=-n.restitution*r}if(n.pointCount==2){C=n.points[0];x=n.points[1];m=e.m_invMass;e=e.m_invI;v=f.m_invMass;f=f.m_invI;t=C.rA.x*a-C.rA.y*c;C=C.rB.x*a-C.rB.y*c;J=x.rA.x*a-x.rA.y*c;x=x.rB.x*a-x.rB.y*c;c=m+v+e*t*t+f*C*C;a=m+v+e*J*J+f*x*x;f=m+v+e*t*J+f*C*x;if(c*
+c<100*(c*a-f*f)){n.K.col1.Set(c,f);n.K.col2.Set(f,a);n.K.GetInverse(n.normalMass)}else n.pointCount=1}}};L.prototype.InitVelocityConstraints=function(j){for(var o=0;o<this.m_constraintCount;++o){var q=this.m_constraints[o],n=q.bodyA,a=q.bodyB,c=n.m_invMass,g=n.m_invI,b=a.m_invMass,e=a.m_invI,f=q.normal.x,m=q.normal.y,r=m,s=-f,v=0,t=0;if(j.warmStarting){t=q.pointCount;for(v=0;v<t;++v){var x=q.points[v];x.normalImpulse*=j.dtRatio;x.tangentImpulse*=j.dtRatio;var C=x.normalImpulse*f+x.tangentImpulse*
+r,J=x.normalImpulse*m+x.tangentImpulse*s;n.m_angularVelocity-=g*(x.rA.x*J-x.rA.y*C);n.m_linearVelocity.x-=c*C;n.m_linearVelocity.y-=c*J;a.m_angularVelocity+=e*(x.rB.x*J-x.rB.y*C);a.m_linearVelocity.x+=b*C;a.m_linearVelocity.y+=b*J}}else{t=q.pointCount;for(v=0;v<t;++v){n=q.points[v];n.normalImpulse=0;n.tangentImpulse=0}}}};L.prototype.SolveVelocityConstraints=function(){for(var j=0,o,q=0,n=0,a=0,c=n=n=q=q=0,g=q=q=0,b=q=a=0,e=0,f,m=0;m<this.m_constraintCount;++m){a=this.m_constraints[m];var r=a.bodyA,
+s=a.bodyB,v=r.m_angularVelocity,t=s.m_angularVelocity,x=r.m_linearVelocity,C=s.m_linearVelocity,J=r.m_invMass,T=r.m_invI,P=s.m_invMass,X=s.m_invI;b=a.normal.x;var $=e=a.normal.y;f=-b;g=a.friction;for(j=0;j<a.pointCount;j++){o=a.points[j];q=C.x-t*o.rB.y-x.x+v*o.rA.y;n=C.y+t*o.rB.x-x.y-v*o.rA.x;q=q*$+n*f;q=o.tangentMass*-q;n=g*o.normalImpulse;n=R.Clamp(o.tangentImpulse+q,-n,n);q=n-o.tangentImpulse;c=q*$;q=q*f;x.x-=J*c;x.y-=J*q;v-=T*(o.rA.x*q-o.rA.y*c);C.x+=P*c;C.y+=P*q;t+=X*(o.rB.x*q-o.rB.y*c);o.tangentImpulse=
+n}parseInt(a.pointCount);if(a.pointCount==1){o=a.points[0];q=C.x+-t*o.rB.y-x.x- -v*o.rA.y;n=C.y+t*o.rB.x-x.y-v*o.rA.x;a=q*b+n*e;q=-o.normalMass*(a-o.velocityBias);n=o.normalImpulse+q;n=n>0?n:0;q=n-o.normalImpulse;c=q*b;q=q*e;x.x-=J*c;x.y-=J*q;v-=T*(o.rA.x*q-o.rA.y*c);C.x+=P*c;C.y+=P*q;t+=X*(o.rB.x*q-o.rB.y*c);o.normalImpulse=n}else{o=a.points[0];j=a.points[1];q=o.normalImpulse;g=j.normalImpulse;var ba=(C.x-t*o.rB.y-x.x+v*o.rA.y)*b+(C.y+t*o.rB.x-x.y-v*o.rA.x)*e,ca=(C.x-t*j.rB.y-x.x+v*j.rA.y)*b+(C.y+
+t*j.rB.x-x.y-v*j.rA.x)*e;n=ba-o.velocityBias;c=ca-j.velocityBias;f=a.K;n-=f.col1.x*q+f.col2.x*g;for(c-=f.col1.y*q+f.col2.y*g;;){f=a.normalMass;$=-(f.col1.x*n+f.col2.x*c);f=-(f.col1.y*n+f.col2.y*c);if($>=0&&f>=0){q=$-q;g=f-g;a=q*b;q=q*e;b=g*b;e=g*e;x.x-=J*(a+b);x.y-=J*(q+e);v-=T*(o.rA.x*q-o.rA.y*a+j.rA.x*e-j.rA.y*b);C.x+=P*(a+b);C.y+=P*(q+e);t+=X*(o.rB.x*q-o.rB.y*a+j.rB.x*e-j.rB.y*b);o.normalImpulse=$;j.normalImpulse=f;break}$=-o.normalMass*n;f=0;ca=a.K.col1.y*$+c;if($>=0&&ca>=0){q=$-q;g=f-g;a=q*b;
+q=q*e;b=g*b;e=g*e;x.x-=J*(a+b);x.y-=J*(q+e);v-=T*(o.rA.x*q-o.rA.y*a+j.rA.x*e-j.rA.y*b);C.x+=P*(a+b);C.y+=P*(q+e);t+=X*(o.rB.x*q-o.rB.y*a+j.rB.x*e-j.rB.y*b);o.normalImpulse=$;j.normalImpulse=f;break}$=0;f=-j.normalMass*c;ba=a.K.col2.x*f+n;if(f>=0&&ba>=0){q=$-q;g=f-g;a=q*b;q=q*e;b=g*b;e=g*e;x.x-=J*(a+b);x.y-=J*(q+e);v-=T*(o.rA.x*q-o.rA.y*a+j.rA.x*e-j.rA.y*b);C.x+=P*(a+b);C.y+=P*(q+e);t+=X*(o.rB.x*q-o.rB.y*a+j.rB.x*e-j.rB.y*b);o.normalImpulse=$;j.normalImpulse=f;break}f=$=0;ba=n;ca=c;if(ba>=0&&ca>=0){q=
+$-q;g=f-g;a=q*b;q=q*e;b=g*b;e=g*e;x.x-=J*(a+b);x.y-=J*(q+e);v-=T*(o.rA.x*q-o.rA.y*a+j.rA.x*e-j.rA.y*b);C.x+=P*(a+b);C.y+=P*(q+e);t+=X*(o.rB.x*q-o.rB.y*a+j.rB.x*e-j.rB.y*b);o.normalImpulse=$;j.normalImpulse=f;break}break}}r.m_angularVelocity=v;s.m_angularVelocity=t}};L.prototype.FinalizeVelocityConstraints=function(){for(var j=0;j<this.m_constraintCount;++j)for(var o=this.m_constraints[j],q=o.manifold,n=0;n<o.pointCount;++n){var a=q.m_points[n],c=o.points[n];a.m_normalImpulse=c.normalImpulse;a.m_tangentImpulse=
+c.tangentImpulse}};L.prototype.SolvePositionConstraints=function(j){if(j===undefined)j=0;for(var o=0,q=0;q<this.m_constraintCount;q++){var n=this.m_constraints[q],a=n.bodyA,c=n.bodyB,g=a.m_mass*a.m_invMass,b=a.m_mass*a.m_invI,e=c.m_mass*c.m_invMass,f=c.m_mass*c.m_invI;L.s_psm.Initialize(n);for(var m=L.s_psm.m_normal,r=0;r<n.pointCount;r++){var s=n.points[r],v=L.s_psm.m_points[r],t=L.s_psm.m_separations[r],x=v.x-a.m_sweep.c.x,C=v.y-a.m_sweep.c.y,J=v.x-c.m_sweep.c.x;v=v.y-c.m_sweep.c.y;o=o<t?o:t;t=
+R.Clamp(j*(t+O.b2_linearSlop),-O.b2_maxLinearCorrection,0);t=-s.equalizedMass*t;s=t*m.x;t=t*m.y;a.m_sweep.c.x-=g*s;a.m_sweep.c.y-=g*t;a.m_sweep.a-=b*(x*t-C*s);a.SynchronizeTransform();c.m_sweep.c.x+=e*s;c.m_sweep.c.y+=e*t;c.m_sweep.a+=f*(J*t-v*s);c.SynchronizeTransform()}}return o>-1.5*O.b2_linearSlop};Box2D.postDefs.push(function(){Box2D.Dynamics.Contacts.b2ContactSolver.s_worldManifold=new l;Box2D.Dynamics.Contacts.b2ContactSolver.s_psm=new u});Box2D.inherit(I,Box2D.Dynamics.Contacts.b2Contact);
+I.prototype.__super=Box2D.Dynamics.Contacts.b2Contact.prototype;I.b2EdgeAndCircleContact=function(){Box2D.Dynamics.Contacts.b2Contact.b2Contact.apply(this,arguments)};I.Create=function(){return new I};I.Destroy=function(){};I.prototype.Reset=function(j,o){this.__super.Reset.call(this,j,o)};I.prototype.Evaluate=function(){var j=this.m_fixtureA.GetBody(),o=this.m_fixtureB.GetBody();this.b2CollideEdgeAndCircle(this.m_manifold,this.m_fixtureA.GetShape()instanceof G?this.m_fixtureA.GetShape():null,j.m_xf,
+this.m_fixtureB.GetShape()instanceof F?this.m_fixtureB.GetShape():null,o.m_xf)};I.prototype.b2CollideEdgeAndCircle=function(){};Box2D.inherit(W,Box2D.Dynamics.Contacts.b2Contact);W.prototype.__super=Box2D.Dynamics.Contacts.b2Contact.prototype;W.b2NullContact=function(){Box2D.Dynamics.Contacts.b2Contact.b2Contact.apply(this,arguments)};W.prototype.b2NullContact=function(){this.__super.b2Contact.call(this)};W.prototype.Evaluate=function(){};Box2D.inherit(Y,Box2D.Dynamics.Contacts.b2Contact);Y.prototype.__super=
+Box2D.Dynamics.Contacts.b2Contact.prototype;Y.b2PolyAndCircleContact=function(){Box2D.Dynamics.Contacts.b2Contact.b2Contact.apply(this,arguments)};Y.Create=function(){return new Y};Y.Destroy=function(){};Y.prototype.Reset=function(j,o){this.__super.Reset.call(this,j,o);O.b2Assert(j.GetType()==y.e_polygonShape);O.b2Assert(o.GetType()==y.e_circleShape)};Y.prototype.Evaluate=function(){var j=this.m_fixtureA.m_body,o=this.m_fixtureB.m_body;S.CollidePolygonAndCircle(this.m_manifold,this.m_fixtureA.GetShape()instanceof
+K?this.m_fixtureA.GetShape():null,j.m_xf,this.m_fixtureB.GetShape()instanceof F?this.m_fixtureB.GetShape():null,o.m_xf)};Box2D.inherit(k,Box2D.Dynamics.Contacts.b2Contact);k.prototype.__super=Box2D.Dynamics.Contacts.b2Contact.prototype;k.b2PolyAndEdgeContact=function(){Box2D.Dynamics.Contacts.b2Contact.b2Contact.apply(this,arguments)};k.Create=function(){return new k};k.Destroy=function(){};k.prototype.Reset=function(j,o){this.__super.Reset.call(this,j,o);O.b2Assert(j.GetType()==y.e_polygonShape);
+O.b2Assert(o.GetType()==y.e_edgeShape)};k.prototype.Evaluate=function(){var j=this.m_fixtureA.GetBody(),o=this.m_fixtureB.GetBody();this.b2CollidePolyAndEdge(this.m_manifold,this.m_fixtureA.GetShape()instanceof K?this.m_fixtureA.GetShape():null,j.m_xf,this.m_fixtureB.GetShape()instanceof G?this.m_fixtureB.GetShape():null,o.m_xf)};k.prototype.b2CollidePolyAndEdge=function(){};Box2D.inherit(z,Box2D.Dynamics.Contacts.b2Contact);z.prototype.__super=Box2D.Dynamics.Contacts.b2Contact.prototype;z.b2PolygonContact=
+function(){Box2D.Dynamics.Contacts.b2Contact.b2Contact.apply(this,arguments)};z.Create=function(){return new z};z.Destroy=function(){};z.prototype.Reset=function(j,o){this.__super.Reset.call(this,j,o)};z.prototype.Evaluate=function(){var j=this.m_fixtureA.GetBody(),o=this.m_fixtureB.GetBody();S.CollidePolygons(this.m_manifold,this.m_fixtureA.GetShape()instanceof K?this.m_fixtureA.GetShape():null,j.m_xf,this.m_fixtureB.GetShape()instanceof K?this.m_fixtureB.GetShape():null,o.m_xf)};u.b2PositionSolverManifold=
+function(){};u.prototype.b2PositionSolverManifold=function(){this.m_normal=new N;this.m_separations=new Vector_a2j_Number(O.b2_maxManifoldPoints);this.m_points=new Vector(O.b2_maxManifoldPoints);for(var j=0;j<O.b2_maxManifoldPoints;j++)this.m_points[j]=new N};u.prototype.Initialize=function(j){O.b2Assert(j.pointCount>0);var o=0,q=0,n=0,a,c=0,g=0;switch(j.type){case Z.e_circles:a=j.bodyA.m_xf.R;n=j.localPoint;o=j.bodyA.m_xf.position.x+(a.col1.x*n.x+a.col2.x*n.y);q=j.bodyA.m_xf.position.y+(a.col1.y*
+n.x+a.col2.y*n.y);a=j.bodyB.m_xf.R;n=j.points[0].localPoint;c=j.bodyB.m_xf.position.x+(a.col1.x*n.x+a.col2.x*n.y);a=j.bodyB.m_xf.position.y+(a.col1.y*n.x+a.col2.y*n.y);n=c-o;g=a-q;var b=n*n+g*g;if(b>Number.MIN_VALUE*Number.MIN_VALUE){b=Math.sqrt(b);this.m_normal.x=n/b;this.m_normal.y=g/b}else{this.m_normal.x=1;this.m_normal.y=0}this.m_points[0].x=0.5*(o+c);this.m_points[0].y=0.5*(q+a);this.m_separations[0]=n*this.m_normal.x+g*this.m_normal.y-j.radius;break;case Z.e_faceA:a=j.bodyA.m_xf.R;n=j.localPlaneNormal;
+this.m_normal.x=a.col1.x*n.x+a.col2.x*n.y;this.m_normal.y=a.col1.y*n.x+a.col2.y*n.y;a=j.bodyA.m_xf.R;n=j.localPoint;c=j.bodyA.m_xf.position.x+(a.col1.x*n.x+a.col2.x*n.y);g=j.bodyA.m_xf.position.y+(a.col1.y*n.x+a.col2.y*n.y);a=j.bodyB.m_xf.R;for(o=0;o<j.pointCount;++o){n=j.points[o].localPoint;q=j.bodyB.m_xf.position.x+(a.col1.x*n.x+a.col2.x*n.y);n=j.bodyB.m_xf.position.y+(a.col1.y*n.x+a.col2.y*n.y);this.m_separations[o]=(q-c)*this.m_normal.x+(n-g)*this.m_normal.y-j.radius;this.m_points[o].x=q;this.m_points[o].y=
+n}break;case Z.e_faceB:a=j.bodyB.m_xf.R;n=j.localPlaneNormal;this.m_normal.x=a.col1.x*n.x+a.col2.x*n.y;this.m_normal.y=a.col1.y*n.x+a.col2.y*n.y;a=j.bodyB.m_xf.R;n=j.localPoint;c=j.bodyB.m_xf.position.x+(a.col1.x*n.x+a.col2.x*n.y);g=j.bodyB.m_xf.position.y+(a.col1.y*n.x+a.col2.y*n.y);a=j.bodyA.m_xf.R;for(o=0;o<j.pointCount;++o){n=j.points[o].localPoint;q=j.bodyA.m_xf.position.x+(a.col1.x*n.x+a.col2.x*n.y);n=j.bodyA.m_xf.position.y+(a.col1.y*n.x+a.col2.y*n.y);this.m_separations[o]=(q-c)*this.m_normal.x+
+(n-g)*this.m_normal.y-j.radius;this.m_points[o].Set(q,n)}this.m_normal.x*=-1;this.m_normal.y*=-1}};Box2D.postDefs.push(function(){Box2D.Dynamics.Contacts.b2PositionSolverManifold.circlePointA=new N;Box2D.Dynamics.Contacts.b2PositionSolverManifold.circlePointB=new N})})();
+(function(){var F=Box2D.Common.Math.b2Mat22,G=Box2D.Common.Math.b2Math,K=Box2D.Common.Math.b2Vec2,y=Box2D.Common.b2Color,w=Box2D.Dynamics.Controllers.b2BuoyancyController,A=Box2D.Dynamics.Controllers.b2ConstantAccelController,U=Box2D.Dynamics.Controllers.b2ConstantForceController,p=Box2D.Dynamics.Controllers.b2Controller,B=Box2D.Dynamics.Controllers.b2ControllerEdge,Q=Box2D.Dynamics.Controllers.b2GravityController,V=Box2D.Dynamics.Controllers.b2TensorDampingController;Box2D.inherit(w,Box2D.Dynamics.Controllers.b2Controller);
+w.prototype.__super=Box2D.Dynamics.Controllers.b2Controller.prototype;w.b2BuoyancyController=function(){Box2D.Dynamics.Controllers.b2Controller.b2Controller.apply(this,arguments);this.normal=new K(0,-1);this.density=this.offset=0;this.velocity=new K(0,0);this.linearDrag=2;this.angularDrag=1;this.useDensity=false;this.useWorldGravity=true;this.gravity=null};w.prototype.Step=function(){if(this.m_bodyList){if(this.useWorldGravity)this.gravity=this.GetWorld().GetGravity().Copy();for(var M=this.m_bodyList;M;M=
+M.nextBody){var L=M.body;if(L.IsAwake()!=false){for(var I=new K,W=new K,Y=0,k=0,z=L.GetFixtureList();z;z=z.GetNext()){var u=new K,D=z.GetShape().ComputeSubmergedArea(this.normal,this.offset,L.GetTransform(),u);Y+=D;I.x+=D*u.x;I.y+=D*u.y;var H=0;H=1;k+=D*H;W.x+=D*u.x*H;W.y+=D*u.y*H}I.x/=Y;I.y/=Y;W.x/=k;W.y/=k;if(!(Y<Number.MIN_VALUE)){k=this.gravity.GetNegative();k.Multiply(this.density*Y);L.ApplyForce(k,W);W=L.GetLinearVelocityFromWorldPoint(I);W.Subtract(this.velocity);W.Multiply(-this.linearDrag*
+Y);L.ApplyForce(W,I);L.ApplyTorque(-L.GetInertia()/L.GetMass()*Y*L.GetAngularVelocity()*this.angularDrag)}}}}};w.prototype.Draw=function(M){var L=new K,I=new K;L.x=this.normal.x*this.offset+this.normal.y*1E3;L.y=this.normal.y*this.offset-this.normal.x*1E3;I.x=this.normal.x*this.offset-this.normal.y*1E3;I.y=this.normal.y*this.offset+this.normal.x*1E3;var W=new y(0,0,1);M.DrawSegment(L,I,W)};Box2D.inherit(A,Box2D.Dynamics.Controllers.b2Controller);A.prototype.__super=Box2D.Dynamics.Controllers.b2Controller.prototype;
+A.b2ConstantAccelController=function(){Box2D.Dynamics.Controllers.b2Controller.b2Controller.apply(this,arguments);this.A=new K(0,0)};A.prototype.Step=function(M){M=new K(this.A.x*M.dt,this.A.y*M.dt);for(var L=this.m_bodyList;L;L=L.nextBody){var I=L.body;I.IsAwake()&&I.SetLinearVelocity(new K(I.GetLinearVelocity().x+M.x,I.GetLinearVelocity().y+M.y))}};Box2D.inherit(U,Box2D.Dynamics.Controllers.b2Controller);U.prototype.__super=Box2D.Dynamics.Controllers.b2Controller.prototype;U.b2ConstantForceController=
+function(){Box2D.Dynamics.Controllers.b2Controller.b2Controller.apply(this,arguments);this.F=new K(0,0)};U.prototype.Step=function(){for(var M=this.m_bodyList;M;M=M.nextBody){var L=M.body;L.IsAwake()&&L.ApplyForce(this.F,L.GetWorldCenter())}};p.b2Controller=function(){};p.prototype.Step=function(){};p.prototype.Draw=function(){};p.prototype.AddBody=function(M){var L=new B;L.controller=this;L.body=M;L.nextBody=this.m_bodyList;L.prevBody=null;this.m_bodyList=L;if(L.nextBody)L.nextBody.prevBody=L;this.m_bodyCount++;
+L.nextController=M.m_controllerList;L.prevController=null;M.m_controllerList=L;if(L.nextController)L.nextController.prevController=L;M.m_controllerCount++};p.prototype.RemoveBody=function(M){for(var L=M.m_controllerList;L&&L.controller!=this;)L=L.nextController;if(L.prevBody)L.prevBody.nextBody=L.nextBody;if(L.nextBody)L.nextBody.prevBody=L.prevBody;if(L.nextController)L.nextController.prevController=L.prevController;if(L.prevController)L.prevController.nextController=L.nextController;if(this.m_bodyList==
+L)this.m_bodyList=L.nextBody;if(M.m_controllerList==L)M.m_controllerList=L.nextController;M.m_controllerCount--;this.m_bodyCount--};p.prototype.Clear=function(){for(;this.m_bodyList;)this.RemoveBody(this.m_bodyList.body)};p.prototype.GetNext=function(){return this.m_next};p.prototype.GetWorld=function(){return this.m_world};p.prototype.GetBodyList=function(){return this.m_bodyList};B.b2ControllerEdge=function(){};Box2D.inherit(Q,Box2D.Dynamics.Controllers.b2Controller);Q.prototype.__super=Box2D.Dynamics.Controllers.b2Controller.prototype;
+Q.b2GravityController=function(){Box2D.Dynamics.Controllers.b2Controller.b2Controller.apply(this,arguments);this.G=1;this.invSqr=true};Q.prototype.Step=function(){var M=null,L=null,I=null,W=0,Y=null,k=null,z=null,u=0,D=0,H=0;u=null;if(this.invSqr)for(M=this.m_bodyList;M;M=M.nextBody){L=M.body;I=L.GetWorldCenter();W=L.GetMass();for(Y=this.m_bodyList;Y!=M;Y=Y.nextBody){k=Y.body;z=k.GetWorldCenter();u=z.x-I.x;D=z.y-I.y;H=u*u+D*D;if(!(H<Number.MIN_VALUE)){u=new K(u,D);u.Multiply(this.G/H/Math.sqrt(H)*
+W*k.GetMass());L.IsAwake()&&L.ApplyForce(u,I);u.Multiply(-1);k.IsAwake()&&k.ApplyForce(u,z)}}}else for(M=this.m_bodyList;M;M=M.nextBody){L=M.body;I=L.GetWorldCenter();W=L.GetMass();for(Y=this.m_bodyList;Y!=M;Y=Y.nextBody){k=Y.body;z=k.GetWorldCenter();u=z.x-I.x;D=z.y-I.y;H=u*u+D*D;if(!(H<Number.MIN_VALUE)){u=new K(u,D);u.Multiply(this.G/H*W*k.GetMass());L.IsAwake()&&L.ApplyForce(u,I);u.Multiply(-1);k.IsAwake()&&k.ApplyForce(u,z)}}}};Box2D.inherit(V,Box2D.Dynamics.Controllers.b2Controller);V.prototype.__super=
+Box2D.Dynamics.Controllers.b2Controller.prototype;V.b2TensorDampingController=function(){Box2D.Dynamics.Controllers.b2Controller.b2Controller.apply(this,arguments);this.T=new F;this.maxTimestep=0};V.prototype.SetAxisAligned=function(M,L){if(M===undefined)M=0;if(L===undefined)L=0;this.T.col1.x=-M;this.T.col1.y=0;this.T.col2.x=0;this.T.col2.y=-L;this.maxTimestep=M>0||L>0?1/Math.max(M,L):0};V.prototype.Step=function(M){M=M.dt;if(!(M<=Number.MIN_VALUE)){if(M>this.maxTimestep&&this.maxTimestep>0)M=this.maxTimestep;
+for(var L=this.m_bodyList;L;L=L.nextBody){var I=L.body;if(I.IsAwake()){var W=I.GetWorldVector(G.MulMV(this.T,I.GetLocalVector(I.GetLinearVelocity())));I.SetLinearVelocity(new K(I.GetLinearVelocity().x+W.x*M,I.GetLinearVelocity().y+W.y*M))}}}}})();
+(function(){var F=Box2D.Common.b2Settings,G=Box2D.Common.Math.b2Mat22,K=Box2D.Common.Math.b2Mat33,y=Box2D.Common.Math.b2Math,w=Box2D.Common.Math.b2Vec2,A=Box2D.Common.Math.b2Vec3,U=Box2D.Dynamics.Joints.b2DistanceJoint,p=Box2D.Dynamics.Joints.b2DistanceJointDef,B=Box2D.Dynamics.Joints.b2FrictionJoint,Q=Box2D.Dynamics.Joints.b2FrictionJointDef,V=Box2D.Dynamics.Joints.b2GearJoint,M=Box2D.Dynamics.Joints.b2GearJointDef,L=Box2D.Dynamics.Joints.b2Jacobian,I=Box2D.Dynamics.Joints.b2Joint,W=Box2D.Dynamics.Joints.b2JointDef,
+Y=Box2D.Dynamics.Joints.b2JointEdge,k=Box2D.Dynamics.Joints.b2LineJoint,z=Box2D.Dynamics.Joints.b2LineJointDef,u=Box2D.Dynamics.Joints.b2MouseJoint,D=Box2D.Dynamics.Joints.b2MouseJointDef,H=Box2D.Dynamics.Joints.b2PrismaticJoint,O=Box2D.Dynamics.Joints.b2PrismaticJointDef,E=Box2D.Dynamics.Joints.b2PulleyJoint,R=Box2D.Dynamics.Joints.b2PulleyJointDef,N=Box2D.Dynamics.Joints.b2RevoluteJoint,S=Box2D.Dynamics.Joints.b2RevoluteJointDef,aa=Box2D.Dynamics.Joints.b2WeldJoint,Z=Box2D.Dynamics.Joints.b2WeldJointDef;
+Box2D.inherit(U,Box2D.Dynamics.Joints.b2Joint);U.prototype.__super=Box2D.Dynamics.Joints.b2Joint.prototype;U.b2DistanceJoint=function(){Box2D.Dynamics.Joints.b2Joint.b2Joint.apply(this,arguments);this.m_localAnchor1=new w;this.m_localAnchor2=new w;this.m_u=new w};U.prototype.GetAnchorA=function(){return this.m_bodyA.GetWorldPoint(this.m_localAnchor1)};U.prototype.GetAnchorB=function(){return this.m_bodyB.GetWorldPoint(this.m_localAnchor2)};U.prototype.GetReactionForce=function(d){if(d===undefined)d=
+0;return new w(d*this.m_impulse*this.m_u.x,d*this.m_impulse*this.m_u.y)};U.prototype.GetReactionTorque=function(){return 0};U.prototype.GetLength=function(){return this.m_length};U.prototype.SetLength=function(d){if(d===undefined)d=0;this.m_length=d};U.prototype.GetFrequency=function(){return this.m_frequencyHz};U.prototype.SetFrequency=function(d){if(d===undefined)d=0;this.m_frequencyHz=d};U.prototype.GetDampingRatio=function(){return this.m_dampingRatio};U.prototype.SetDampingRatio=function(d){if(d===
+undefined)d=0;this.m_dampingRatio=d};U.prototype.b2DistanceJoint=function(d){this.__super.b2Joint.call(this,d);this.m_localAnchor1.SetV(d.localAnchorA);this.m_localAnchor2.SetV(d.localAnchorB);this.m_length=d.length;this.m_frequencyHz=d.frequencyHz;this.m_dampingRatio=d.dampingRatio;this.m_bias=this.m_gamma=this.m_impulse=0};U.prototype.InitVelocityConstraints=function(d){var h,l=0,j=this.m_bodyA,o=this.m_bodyB;h=j.m_xf.R;var q=this.m_localAnchor1.x-j.m_sweep.localCenter.x,n=this.m_localAnchor1.y-
+j.m_sweep.localCenter.y;l=h.col1.x*q+h.col2.x*n;n=h.col1.y*q+h.col2.y*n;q=l;h=o.m_xf.R;var a=this.m_localAnchor2.x-o.m_sweep.localCenter.x,c=this.m_localAnchor2.y-o.m_sweep.localCenter.y;l=h.col1.x*a+h.col2.x*c;c=h.col1.y*a+h.col2.y*c;a=l;this.m_u.x=o.m_sweep.c.x+a-j.m_sweep.c.x-q;this.m_u.y=o.m_sweep.c.y+c-j.m_sweep.c.y-n;l=Math.sqrt(this.m_u.x*this.m_u.x+this.m_u.y*this.m_u.y);l>F.b2_linearSlop?this.m_u.Multiply(1/l):this.m_u.SetZero();h=q*this.m_u.y-n*this.m_u.x;var g=a*this.m_u.y-c*this.m_u.x;
+h=j.m_invMass+j.m_invI*h*h+o.m_invMass+o.m_invI*g*g;this.m_mass=h!=0?1/h:0;if(this.m_frequencyHz>0){l=l-this.m_length;g=2*Math.PI*this.m_frequencyHz;var b=this.m_mass*g*g;this.m_gamma=d.dt*(2*this.m_mass*this.m_dampingRatio*g+d.dt*b);this.m_gamma=this.m_gamma!=0?1/this.m_gamma:0;this.m_bias=l*d.dt*b*this.m_gamma;this.m_mass=h+this.m_gamma;this.m_mass=this.m_mass!=0?1/this.m_mass:0}if(d.warmStarting){this.m_impulse*=d.dtRatio;d=this.m_impulse*this.m_u.x;h=this.m_impulse*this.m_u.y;j.m_linearVelocity.x-=
+j.m_invMass*d;j.m_linearVelocity.y-=j.m_invMass*h;j.m_angularVelocity-=j.m_invI*(q*h-n*d);o.m_linearVelocity.x+=o.m_invMass*d;o.m_linearVelocity.y+=o.m_invMass*h;o.m_angularVelocity+=o.m_invI*(a*h-c*d)}else this.m_impulse=0};U.prototype.SolveVelocityConstraints=function(){var d,h=this.m_bodyA,l=this.m_bodyB;d=h.m_xf.R;var j=this.m_localAnchor1.x-h.m_sweep.localCenter.x,o=this.m_localAnchor1.y-h.m_sweep.localCenter.y,q=d.col1.x*j+d.col2.x*o;o=d.col1.y*j+d.col2.y*o;j=q;d=l.m_xf.R;var n=this.m_localAnchor2.x-
+l.m_sweep.localCenter.x,a=this.m_localAnchor2.y-l.m_sweep.localCenter.y;q=d.col1.x*n+d.col2.x*a;a=d.col1.y*n+d.col2.y*a;n=q;q=-this.m_mass*(this.m_u.x*(l.m_linearVelocity.x+-l.m_angularVelocity*a-(h.m_linearVelocity.x+-h.m_angularVelocity*o))+this.m_u.y*(l.m_linearVelocity.y+l.m_angularVelocity*n-(h.m_linearVelocity.y+h.m_angularVelocity*j))+this.m_bias+this.m_gamma*this.m_impulse);this.m_impulse+=q;d=q*this.m_u.x;q=q*this.m_u.y;h.m_linearVelocity.x-=h.m_invMass*d;h.m_linearVelocity.y-=h.m_invMass*
+q;h.m_angularVelocity-=h.m_invI*(j*q-o*d);l.m_linearVelocity.x+=l.m_invMass*d;l.m_linearVelocity.y+=l.m_invMass*q;l.m_angularVelocity+=l.m_invI*(n*q-a*d)};U.prototype.SolvePositionConstraints=function(){var d;if(this.m_frequencyHz>0)return true;var h=this.m_bodyA,l=this.m_bodyB;d=h.m_xf.R;var j=this.m_localAnchor1.x-h.m_sweep.localCenter.x,o=this.m_localAnchor1.y-h.m_sweep.localCenter.y,q=d.col1.x*j+d.col2.x*o;o=d.col1.y*j+d.col2.y*o;j=q;d=l.m_xf.R;var n=this.m_localAnchor2.x-l.m_sweep.localCenter.x,
+a=this.m_localAnchor2.y-l.m_sweep.localCenter.y;q=d.col1.x*n+d.col2.x*a;a=d.col1.y*n+d.col2.y*a;n=q;q=l.m_sweep.c.x+n-h.m_sweep.c.x-j;var c=l.m_sweep.c.y+a-h.m_sweep.c.y-o;d=Math.sqrt(q*q+c*c);q/=d;c/=d;d=d-this.m_length;d=y.Clamp(d,-F.b2_maxLinearCorrection,F.b2_maxLinearCorrection);var g=-this.m_mass*d;this.m_u.Set(q,c);q=g*this.m_u.x;c=g*this.m_u.y;h.m_sweep.c.x-=h.m_invMass*q;h.m_sweep.c.y-=h.m_invMass*c;h.m_sweep.a-=h.m_invI*(j*c-o*q);l.m_sweep.c.x+=l.m_invMass*q;l.m_sweep.c.y+=l.m_invMass*c;
+l.m_sweep.a+=l.m_invI*(n*c-a*q);h.SynchronizeTransform();l.SynchronizeTransform();return y.Abs(d)<F.b2_linearSlop};Box2D.inherit(p,Box2D.Dynamics.Joints.b2JointDef);p.prototype.__super=Box2D.Dynamics.Joints.b2JointDef.prototype;p.b2DistanceJointDef=function(){Box2D.Dynamics.Joints.b2JointDef.b2JointDef.apply(this,arguments);this.localAnchorA=new w;this.localAnchorB=new w};p.prototype.b2DistanceJointDef=function(){this.__super.b2JointDef.call(this);this.type=I.e_distanceJoint;this.length=1;this.dampingRatio=
+this.frequencyHz=0};p.prototype.Initialize=function(d,h,l,j){this.bodyA=d;this.bodyB=h;this.localAnchorA.SetV(this.bodyA.GetLocalPoint(l));this.localAnchorB.SetV(this.bodyB.GetLocalPoint(j));d=j.x-l.x;l=j.y-l.y;this.length=Math.sqrt(d*d+l*l);this.dampingRatio=this.frequencyHz=0};Box2D.inherit(B,Box2D.Dynamics.Joints.b2Joint);B.prototype.__super=Box2D.Dynamics.Joints.b2Joint.prototype;B.b2FrictionJoint=function(){Box2D.Dynamics.Joints.b2Joint.b2Joint.apply(this,arguments);this.m_localAnchorA=new w;
+this.m_localAnchorB=new w;this.m_linearMass=new G;this.m_linearImpulse=new w};B.prototype.GetAnchorA=function(){return this.m_bodyA.GetWorldPoint(this.m_localAnchorA)};B.prototype.GetAnchorB=function(){return this.m_bodyB.GetWorldPoint(this.m_localAnchorB)};B.prototype.GetReactionForce=function(d){if(d===undefined)d=0;return new w(d*this.m_linearImpulse.x,d*this.m_linearImpulse.y)};B.prototype.GetReactionTorque=function(d){if(d===undefined)d=0;return d*this.m_angularImpulse};B.prototype.SetMaxForce=
+function(d){if(d===undefined)d=0;this.m_maxForce=d};B.prototype.GetMaxForce=function(){return this.m_maxForce};B.prototype.SetMaxTorque=function(d){if(d===undefined)d=0;this.m_maxTorque=d};B.prototype.GetMaxTorque=function(){return this.m_maxTorque};B.prototype.b2FrictionJoint=function(d){this.__super.b2Joint.call(this,d);this.m_localAnchorA.SetV(d.localAnchorA);this.m_localAnchorB.SetV(d.localAnchorB);this.m_linearMass.SetZero();this.m_angularMass=0;this.m_linearImpulse.SetZero();this.m_angularImpulse=
+0;this.m_maxForce=d.maxForce;this.m_maxTorque=d.maxTorque};B.prototype.InitVelocityConstraints=function(d){var h,l=0,j=this.m_bodyA,o=this.m_bodyB;h=j.m_xf.R;var q=this.m_localAnchorA.x-j.m_sweep.localCenter.x,n=this.m_localAnchorA.y-j.m_sweep.localCenter.y;l=h.col1.x*q+h.col2.x*n;n=h.col1.y*q+h.col2.y*n;q=l;h=o.m_xf.R;var a=this.m_localAnchorB.x-o.m_sweep.localCenter.x,c=this.m_localAnchorB.y-o.m_sweep.localCenter.y;l=h.col1.x*a+h.col2.x*c;c=h.col1.y*a+h.col2.y*c;a=l;h=j.m_invMass;l=o.m_invMass;
+var g=j.m_invI,b=o.m_invI,e=new G;e.col1.x=h+l;e.col2.x=0;e.col1.y=0;e.col2.y=h+l;e.col1.x+=g*n*n;e.col2.x+=-g*q*n;e.col1.y+=-g*q*n;e.col2.y+=g*q*q;e.col1.x+=b*c*c;e.col2.x+=-b*a*c;e.col1.y+=-b*a*c;e.col2.y+=b*a*a;e.GetInverse(this.m_linearMass);this.m_angularMass=g+b;if(this.m_angularMass>0)this.m_angularMass=1/this.m_angularMass;if(d.warmStarting){this.m_linearImpulse.x*=d.dtRatio;this.m_linearImpulse.y*=d.dtRatio;this.m_angularImpulse*=d.dtRatio;d=this.m_linearImpulse;j.m_linearVelocity.x-=h*d.x;
+j.m_linearVelocity.y-=h*d.y;j.m_angularVelocity-=g*(q*d.y-n*d.x+this.m_angularImpulse);o.m_linearVelocity.x+=l*d.x;o.m_linearVelocity.y+=l*d.y;o.m_angularVelocity+=b*(a*d.y-c*d.x+this.m_angularImpulse)}else{this.m_linearImpulse.SetZero();this.m_angularImpulse=0}};B.prototype.SolveVelocityConstraints=function(d){var h,l=0,j=this.m_bodyA,o=this.m_bodyB,q=j.m_linearVelocity,n=j.m_angularVelocity,a=o.m_linearVelocity,c=o.m_angularVelocity,g=j.m_invMass,b=o.m_invMass,e=j.m_invI,f=o.m_invI;h=j.m_xf.R;var m=
+this.m_localAnchorA.x-j.m_sweep.localCenter.x,r=this.m_localAnchorA.y-j.m_sweep.localCenter.y;l=h.col1.x*m+h.col2.x*r;r=h.col1.y*m+h.col2.y*r;m=l;h=o.m_xf.R;var s=this.m_localAnchorB.x-o.m_sweep.localCenter.x,v=this.m_localAnchorB.y-o.m_sweep.localCenter.y;l=h.col1.x*s+h.col2.x*v;v=h.col1.y*s+h.col2.y*v;s=l;h=0;l=-this.m_angularMass*(c-n);var t=this.m_angularImpulse;h=d.dt*this.m_maxTorque;this.m_angularImpulse=y.Clamp(this.m_angularImpulse+l,-h,h);l=this.m_angularImpulse-t;n-=e*l;c+=f*l;h=y.MulMV(this.m_linearMass,
+new w(-(a.x-c*v-q.x+n*r),-(a.y+c*s-q.y-n*m)));l=this.m_linearImpulse.Copy();this.m_linearImpulse.Add(h);h=d.dt*this.m_maxForce;if(this.m_linearImpulse.LengthSquared()>h*h){this.m_linearImpulse.Normalize();this.m_linearImpulse.Multiply(h)}h=y.SubtractVV(this.m_linearImpulse,l);q.x-=g*h.x;q.y-=g*h.y;n-=e*(m*h.y-r*h.x);a.x+=b*h.x;a.y+=b*h.y;c+=f*(s*h.y-v*h.x);j.m_angularVelocity=n;o.m_angularVelocity=c};B.prototype.SolvePositionConstraints=function(){return true};Box2D.inherit(Q,Box2D.Dynamics.Joints.b2JointDef);
+Q.prototype.__super=Box2D.Dynamics.Joints.b2JointDef.prototype;Q.b2FrictionJointDef=function(){Box2D.Dynamics.Joints.b2JointDef.b2JointDef.apply(this,arguments);this.localAnchorA=new w;this.localAnchorB=new w};Q.prototype.b2FrictionJointDef=function(){this.__super.b2JointDef.call(this);this.type=I.e_frictionJoint;this.maxTorque=this.maxForce=0};Q.prototype.Initialize=function(d,h,l){this.bodyA=d;this.bodyB=h;this.localAnchorA.SetV(this.bodyA.GetLocalPoint(l));this.localAnchorB.SetV(this.bodyB.GetLocalPoint(l))};
+Box2D.inherit(V,Box2D.Dynamics.Joints.b2Joint);V.prototype.__super=Box2D.Dynamics.Joints.b2Joint.prototype;V.b2GearJoint=function(){Box2D.Dynamics.Joints.b2Joint.b2Joint.apply(this,arguments);this.m_groundAnchor1=new w;this.m_groundAnchor2=new w;this.m_localAnchor1=new w;this.m_localAnchor2=new w;this.m_J=new L};V.prototype.GetAnchorA=function(){return this.m_bodyA.GetWorldPoint(this.m_localAnchor1)};V.prototype.GetAnchorB=function(){return this.m_bodyB.GetWorldPoint(this.m_localAnchor2)};V.prototype.GetReactionForce=
+function(d){if(d===undefined)d=0;return new w(d*this.m_impulse*this.m_J.linearB.x,d*this.m_impulse*this.m_J.linearB.y)};V.prototype.GetReactionTorque=function(d){if(d===undefined)d=0;var h=this.m_bodyB.m_xf.R,l=this.m_localAnchor1.x-this.m_bodyB.m_sweep.localCenter.x,j=this.m_localAnchor1.y-this.m_bodyB.m_sweep.localCenter.y,o=h.col1.x*l+h.col2.x*j;j=h.col1.y*l+h.col2.y*j;l=o;return d*(this.m_impulse*this.m_J.angularB-l*this.m_impulse*this.m_J.linearB.y+j*this.m_impulse*this.m_J.linearB.x)};V.prototype.GetRatio=
+function(){return this.m_ratio};V.prototype.SetRatio=function(d){if(d===undefined)d=0;this.m_ratio=d};V.prototype.b2GearJoint=function(d){this.__super.b2Joint.call(this,d);var h=parseInt(d.joint1.m_type),l=parseInt(d.joint2.m_type);this.m_prismatic2=this.m_revolute2=this.m_prismatic1=this.m_revolute1=null;var j=0,o=0;this.m_ground1=d.joint1.GetBodyA();this.m_bodyA=d.joint1.GetBodyB();if(h==I.e_revoluteJoint){this.m_revolute1=d.joint1 instanceof N?d.joint1:null;this.m_groundAnchor1.SetV(this.m_revolute1.m_localAnchor1);
+this.m_localAnchor1.SetV(this.m_revolute1.m_localAnchor2);j=this.m_revolute1.GetJointAngle()}else{this.m_prismatic1=d.joint1 instanceof H?d.joint1:null;this.m_groundAnchor1.SetV(this.m_prismatic1.m_localAnchor1);this.m_localAnchor1.SetV(this.m_prismatic1.m_localAnchor2);j=this.m_prismatic1.GetJointTranslation()}this.m_ground2=d.joint2.GetBodyA();this.m_bodyB=d.joint2.GetBodyB();if(l==I.e_revoluteJoint){this.m_revolute2=d.joint2 instanceof N?d.joint2:null;this.m_groundAnchor2.SetV(this.m_revolute2.m_localAnchor1);
+this.m_localAnchor2.SetV(this.m_revolute2.m_localAnchor2);o=this.m_revolute2.GetJointAngle()}else{this.m_prismatic2=d.joint2 instanceof H?d.joint2:null;this.m_groundAnchor2.SetV(this.m_prismatic2.m_localAnchor1);this.m_localAnchor2.SetV(this.m_prismatic2.m_localAnchor2);o=this.m_prismatic2.GetJointTranslation()}this.m_ratio=d.ratio;this.m_constant=j+this.m_ratio*o;this.m_impulse=0};V.prototype.InitVelocityConstraints=function(d){var h=this.m_ground1,l=this.m_ground2,j=this.m_bodyA,o=this.m_bodyB,
+q=0,n=0,a=0,c=0,g=a=0,b=0;this.m_J.SetZero();if(this.m_revolute1){this.m_J.angularA=-1;b+=j.m_invI}else{h=h.m_xf.R;n=this.m_prismatic1.m_localXAxis1;q=h.col1.x*n.x+h.col2.x*n.y;n=h.col1.y*n.x+h.col2.y*n.y;h=j.m_xf.R;a=this.m_localAnchor1.x-j.m_sweep.localCenter.x;c=this.m_localAnchor1.y-j.m_sweep.localCenter.y;g=h.col1.x*a+h.col2.x*c;c=h.col1.y*a+h.col2.y*c;a=g;a=a*n-c*q;this.m_J.linearA.Set(-q,-n);this.m_J.angularA=-a;b+=j.m_invMass+j.m_invI*a*a}if(this.m_revolute2){this.m_J.angularB=-this.m_ratio;
+b+=this.m_ratio*this.m_ratio*o.m_invI}else{h=l.m_xf.R;n=this.m_prismatic2.m_localXAxis1;q=h.col1.x*n.x+h.col2.x*n.y;n=h.col1.y*n.x+h.col2.y*n.y;h=o.m_xf.R;a=this.m_localAnchor2.x-o.m_sweep.localCenter.x;c=this.m_localAnchor2.y-o.m_sweep.localCenter.y;g=h.col1.x*a+h.col2.x*c;c=h.col1.y*a+h.col2.y*c;a=g;a=a*n-c*q;this.m_J.linearB.Set(-this.m_ratio*q,-this.m_ratio*n);this.m_J.angularB=-this.m_ratio*a;b+=this.m_ratio*this.m_ratio*(o.m_invMass+o.m_invI*a*a)}this.m_mass=b>0?1/b:0;if(d.warmStarting){j.m_linearVelocity.x+=
+j.m_invMass*this.m_impulse*this.m_J.linearA.x;j.m_linearVelocity.y+=j.m_invMass*this.m_impulse*this.m_J.linearA.y;j.m_angularVelocity+=j.m_invI*this.m_impulse*this.m_J.angularA;o.m_linearVelocity.x+=o.m_invMass*this.m_impulse*this.m_J.linearB.x;o.m_linearVelocity.y+=o.m_invMass*this.m_impulse*this.m_J.linearB.y;o.m_angularVelocity+=o.m_invI*this.m_impulse*this.m_J.angularB}else this.m_impulse=0};V.prototype.SolveVelocityConstraints=function(){var d=this.m_bodyA,h=this.m_bodyB,l=-this.m_mass*this.m_J.Compute(d.m_linearVelocity,
+d.m_angularVelocity,h.m_linearVelocity,h.m_angularVelocity);this.m_impulse+=l;d.m_linearVelocity.x+=d.m_invMass*l*this.m_J.linearA.x;d.m_linearVelocity.y+=d.m_invMass*l*this.m_J.linearA.y;d.m_angularVelocity+=d.m_invI*l*this.m_J.angularA;h.m_linearVelocity.x+=h.m_invMass*l*this.m_J.linearB.x;h.m_linearVelocity.y+=h.m_invMass*l*this.m_J.linearB.y;h.m_angularVelocity+=h.m_invI*l*this.m_J.angularB};V.prototype.SolvePositionConstraints=function(){var d=this.m_bodyA,h=this.m_bodyB,l=0,j=0;l=this.m_revolute1?
+this.m_revolute1.GetJointAngle():this.m_prismatic1.GetJointTranslation();j=this.m_revolute2?this.m_revolute2.GetJointAngle():this.m_prismatic2.GetJointTranslation();l=-this.m_mass*(this.m_constant-(l+this.m_ratio*j));d.m_sweep.c.x+=d.m_invMass*l*this.m_J.linearA.x;d.m_sweep.c.y+=d.m_invMass*l*this.m_J.linearA.y;d.m_sweep.a+=d.m_invI*l*this.m_J.angularA;h.m_sweep.c.x+=h.m_invMass*l*this.m_J.linearB.x;h.m_sweep.c.y+=h.m_invMass*l*this.m_J.linearB.y;h.m_sweep.a+=h.m_invI*l*this.m_J.angularB;d.SynchronizeTransform();
+h.SynchronizeTransform();return 0<F.b2_linearSlop};Box2D.inherit(M,Box2D.Dynamics.Joints.b2JointDef);M.prototype.__super=Box2D.Dynamics.Joints.b2JointDef.prototype;M.b2GearJointDef=function(){Box2D.Dynamics.Joints.b2JointDef.b2JointDef.apply(this,arguments)};M.prototype.b2GearJointDef=function(){this.__super.b2JointDef.call(this);this.type=I.e_gearJoint;this.joint2=this.joint1=null;this.ratio=1};L.b2Jacobian=function(){this.linearA=new w;this.linearB=new w};L.prototype.SetZero=function(){this.linearA.SetZero();
+this.angularA=0;this.linearB.SetZero();this.angularB=0};L.prototype.Set=function(d,h,l,j){if(h===undefined)h=0;if(j===undefined)j=0;this.linearA.SetV(d);this.angularA=h;this.linearB.SetV(l);this.angularB=j};L.prototype.Compute=function(d,h,l,j){if(h===undefined)h=0;if(j===undefined)j=0;return this.linearA.x*d.x+this.linearA.y*d.y+this.angularA*h+(this.linearB.x*l.x+this.linearB.y*l.y)+this.angularB*j};I.b2Joint=function(){this.m_edgeA=new Y;this.m_edgeB=new Y;this.m_localCenterA=new w;this.m_localCenterB=
+new w};I.prototype.GetType=function(){return this.m_type};I.prototype.GetAnchorA=function(){return null};I.prototype.GetAnchorB=function(){return null};I.prototype.GetReactionForce=function(){return null};I.prototype.GetReactionTorque=function(){return 0};I.prototype.GetBodyA=function(){return this.m_bodyA};I.prototype.GetBodyB=function(){return this.m_bodyB};I.prototype.GetNext=function(){return this.m_next};I.prototype.GetUserData=function(){return this.m_userData};I.prototype.SetUserData=function(d){this.m_userData=
+d};I.prototype.IsActive=function(){return this.m_bodyA.IsActive()&&this.m_bodyB.IsActive()};I.Create=function(d){var h=null;switch(d.type){case I.e_distanceJoint:h=new U(d instanceof p?d:null);break;case I.e_mouseJoint:h=new u(d instanceof D?d:null);break;case I.e_prismaticJoint:h=new H(d instanceof O?d:null);break;case I.e_revoluteJoint:h=new N(d instanceof S?d:null);break;case I.e_pulleyJoint:h=new E(d instanceof R?d:null);break;case I.e_gearJoint:h=new V(d instanceof M?d:null);break;case I.e_lineJoint:h=
+new k(d instanceof z?d:null);break;case I.e_weldJoint:h=new aa(d instanceof Z?d:null);break;case I.e_frictionJoint:h=new B(d instanceof Q?d:null)}return h};I.Destroy=function(){};I.prototype.b2Joint=function(d){F.b2Assert(d.bodyA!=d.bodyB);this.m_type=d.type;this.m_next=this.m_prev=null;this.m_bodyA=d.bodyA;this.m_bodyB=d.bodyB;this.m_collideConnected=d.collideConnected;this.m_islandFlag=false;this.m_userData=d.userData};I.prototype.InitVelocityConstraints=function(){};I.prototype.SolveVelocityConstraints=
+function(){};I.prototype.FinalizeVelocityConstraints=function(){};I.prototype.SolvePositionConstraints=function(){return false};Box2D.postDefs.push(function(){Box2D.Dynamics.Joints.b2Joint.e_unknownJoint=0;Box2D.Dynamics.Joints.b2Joint.e_revoluteJoint=1;Box2D.Dynamics.Joints.b2Joint.e_prismaticJoint=2;Box2D.Dynamics.Joints.b2Joint.e_distanceJoint=3;Box2D.Dynamics.Joints.b2Joint.e_pulleyJoint=4;Box2D.Dynamics.Joints.b2Joint.e_mouseJoint=5;Box2D.Dynamics.Joints.b2Joint.e_gearJoint=6;Box2D.Dynamics.Joints.b2Joint.e_lineJoint=
+7;Box2D.Dynamics.Joints.b2Joint.e_weldJoint=8;Box2D.Dynamics.Joints.b2Joint.e_frictionJoint=9;Box2D.Dynamics.Joints.b2Joint.e_inactiveLimit=0;Box2D.Dynamics.Joints.b2Joint.e_atLowerLimit=1;Box2D.Dynamics.Joints.b2Joint.e_atUpperLimit=2;Box2D.Dynamics.Joints.b2Joint.e_equalLimits=3});W.b2JointDef=function(){};W.prototype.b2JointDef=function(){this.type=I.e_unknownJoint;this.bodyB=this.bodyA=this.userData=null;this.collideConnected=false};Y.b2JointEdge=function(){};Box2D.inherit(k,Box2D.Dynamics.Joints.b2Joint);
+k.prototype.__super=Box2D.Dynamics.Joints.b2Joint.prototype;k.b2LineJoint=function(){Box2D.Dynamics.Joints.b2Joint.b2Joint.apply(this,arguments);this.m_localAnchor1=new w;this.m_localAnchor2=new w;this.m_localXAxis1=new w;this.m_localYAxis1=new w;this.m_axis=new w;this.m_perp=new w;this.m_K=new G;this.m_impulse=new w};k.prototype.GetAnchorA=function(){return this.m_bodyA.GetWorldPoint(this.m_localAnchor1)};k.prototype.GetAnchorB=function(){return this.m_bodyB.GetWorldPoint(this.m_localAnchor2)};k.prototype.GetReactionForce=
+function(d){if(d===undefined)d=0;return new w(d*(this.m_impulse.x*this.m_perp.x+(this.m_motorImpulse+this.m_impulse.y)*this.m_axis.x),d*(this.m_impulse.x*this.m_perp.y+(this.m_motorImpulse+this.m_impulse.y)*this.m_axis.y))};k.prototype.GetReactionTorque=function(d){if(d===undefined)d=0;return d*this.m_impulse.y};k.prototype.GetJointTranslation=function(){var d=this.m_bodyA,h=this.m_bodyB,l=d.GetWorldPoint(this.m_localAnchor1),j=h.GetWorldPoint(this.m_localAnchor2);h=j.x-l.x;l=j.y-l.y;d=d.GetWorldVector(this.m_localXAxis1);
+return d.x*h+d.y*l};k.prototype.GetJointSpeed=function(){var d=this.m_bodyA,h=this.m_bodyB,l;l=d.m_xf.R;var j=this.m_localAnchor1.x-d.m_sweep.localCenter.x,o=this.m_localAnchor1.y-d.m_sweep.localCenter.y,q=l.col1.x*j+l.col2.x*o;o=l.col1.y*j+l.col2.y*o;j=q;l=h.m_xf.R;var n=this.m_localAnchor2.x-h.m_sweep.localCenter.x,a=this.m_localAnchor2.y-h.m_sweep.localCenter.y;q=l.col1.x*n+l.col2.x*a;a=l.col1.y*n+l.col2.y*a;n=q;l=h.m_sweep.c.x+n-(d.m_sweep.c.x+j);q=h.m_sweep.c.y+a-(d.m_sweep.c.y+o);var c=d.GetWorldVector(this.m_localXAxis1),
+g=d.m_linearVelocity,b=h.m_linearVelocity;d=d.m_angularVelocity;h=h.m_angularVelocity;return l*-d*c.y+q*d*c.x+(c.x*(b.x+-h*a-g.x- -d*o)+c.y*(b.y+h*n-g.y-d*j))};k.prototype.IsLimitEnabled=function(){return this.m_enableLimit};k.prototype.EnableLimit=function(d){this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true);this.m_enableLimit=d};k.prototype.GetLowerLimit=function(){return this.m_lowerTranslation};k.prototype.GetUpperLimit=function(){return this.m_upperTranslation};k.prototype.SetLimits=function(d,
+h){if(d===undefined)d=0;if(h===undefined)h=0;this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true);this.m_lowerTranslation=d;this.m_upperTranslation=h};k.prototype.IsMotorEnabled=function(){return this.m_enableMotor};k.prototype.EnableMotor=function(d){this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true);this.m_enableMotor=d};k.prototype.SetMotorSpeed=function(d){if(d===undefined)d=0;this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true);this.m_motorSpeed=d};k.prototype.GetMotorSpeed=function(){return this.m_motorSpeed};
+k.prototype.SetMaxMotorForce=function(d){if(d===undefined)d=0;this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true);this.m_maxMotorForce=d};k.prototype.GetMaxMotorForce=function(){return this.m_maxMotorForce};k.prototype.GetMotorForce=function(){return this.m_motorImpulse};k.prototype.b2LineJoint=function(d){this.__super.b2Joint.call(this,d);this.m_localAnchor1.SetV(d.localAnchorA);this.m_localAnchor2.SetV(d.localAnchorB);this.m_localXAxis1.SetV(d.localAxisA);this.m_localYAxis1.x=-this.m_localXAxis1.y;
+this.m_localYAxis1.y=this.m_localXAxis1.x;this.m_impulse.SetZero();this.m_motorImpulse=this.m_motorMass=0;this.m_lowerTranslation=d.lowerTranslation;this.m_upperTranslation=d.upperTranslation;this.m_maxMotorForce=d.maxMotorForce;this.m_motorSpeed=d.motorSpeed;this.m_enableLimit=d.enableLimit;this.m_enableMotor=d.enableMotor;this.m_limitState=I.e_inactiveLimit;this.m_axis.SetZero();this.m_perp.SetZero()};k.prototype.InitVelocityConstraints=function(d){var h=this.m_bodyA,l=this.m_bodyB,j,o=0;this.m_localCenterA.SetV(h.GetLocalCenter());
+this.m_localCenterB.SetV(l.GetLocalCenter());var q=h.GetTransform();l.GetTransform();j=h.m_xf.R;var n=this.m_localAnchor1.x-this.m_localCenterA.x,a=this.m_localAnchor1.y-this.m_localCenterA.y;o=j.col1.x*n+j.col2.x*a;a=j.col1.y*n+j.col2.y*a;n=o;j=l.m_xf.R;var c=this.m_localAnchor2.x-this.m_localCenterB.x,g=this.m_localAnchor2.y-this.m_localCenterB.y;o=j.col1.x*c+j.col2.x*g;g=j.col1.y*c+j.col2.y*g;c=o;j=l.m_sweep.c.x+c-h.m_sweep.c.x-n;o=l.m_sweep.c.y+g-h.m_sweep.c.y-a;this.m_invMassA=h.m_invMass;this.m_invMassB=
+l.m_invMass;this.m_invIA=h.m_invI;this.m_invIB=l.m_invI;this.m_axis.SetV(y.MulMV(q.R,this.m_localXAxis1));this.m_a1=(j+n)*this.m_axis.y-(o+a)*this.m_axis.x;this.m_a2=c*this.m_axis.y-g*this.m_axis.x;this.m_motorMass=this.m_invMassA+this.m_invMassB+this.m_invIA*this.m_a1*this.m_a1+this.m_invIB*this.m_a2*this.m_a2;this.m_motorMass=this.m_motorMass>Number.MIN_VALUE?1/this.m_motorMass:0;this.m_perp.SetV(y.MulMV(q.R,this.m_localYAxis1));this.m_s1=(j+n)*this.m_perp.y-(o+a)*this.m_perp.x;this.m_s2=c*this.m_perp.y-
+g*this.m_perp.x;q=this.m_invMassA;n=this.m_invMassB;a=this.m_invIA;c=this.m_invIB;this.m_K.col1.x=q+n+a*this.m_s1*this.m_s1+c*this.m_s2*this.m_s2;this.m_K.col1.y=a*this.m_s1*this.m_a1+c*this.m_s2*this.m_a2;this.m_K.col2.x=this.m_K.col1.y;this.m_K.col2.y=q+n+a*this.m_a1*this.m_a1+c*this.m_a2*this.m_a2;if(this.m_enableLimit){j=this.m_axis.x*j+this.m_axis.y*o;if(y.Abs(this.m_upperTranslation-this.m_lowerTranslation)<2*F.b2_linearSlop)this.m_limitState=I.e_equalLimits;else if(j<=this.m_lowerTranslation){if(this.m_limitState!=
+I.e_atLowerLimit){this.m_limitState=I.e_atLowerLimit;this.m_impulse.y=0}}else if(j>=this.m_upperTranslation){if(this.m_limitState!=I.e_atUpperLimit){this.m_limitState=I.e_atUpperLimit;this.m_impulse.y=0}}else{this.m_limitState=I.e_inactiveLimit;this.m_impulse.y=0}}else this.m_limitState=I.e_inactiveLimit;if(this.m_enableMotor==false)this.m_motorImpulse=0;if(d.warmStarting){this.m_impulse.x*=d.dtRatio;this.m_impulse.y*=d.dtRatio;this.m_motorImpulse*=d.dtRatio;d=this.m_impulse.x*this.m_perp.x+(this.m_motorImpulse+
+this.m_impulse.y)*this.m_axis.x;j=this.m_impulse.x*this.m_perp.y+(this.m_motorImpulse+this.m_impulse.y)*this.m_axis.y;o=this.m_impulse.x*this.m_s1+(this.m_motorImpulse+this.m_impulse.y)*this.m_a1;q=this.m_impulse.x*this.m_s2+(this.m_motorImpulse+this.m_impulse.y)*this.m_a2;h.m_linearVelocity.x-=this.m_invMassA*d;h.m_linearVelocity.y-=this.m_invMassA*j;h.m_angularVelocity-=this.m_invIA*o;l.m_linearVelocity.x+=this.m_invMassB*d;l.m_linearVelocity.y+=this.m_invMassB*j;l.m_angularVelocity+=this.m_invIB*
+q}else{this.m_impulse.SetZero();this.m_motorImpulse=0}};k.prototype.SolveVelocityConstraints=function(d){var h=this.m_bodyA,l=this.m_bodyB,j=h.m_linearVelocity,o=h.m_angularVelocity,q=l.m_linearVelocity,n=l.m_angularVelocity,a=0,c=0,g=0,b=0;if(this.m_enableMotor&&this.m_limitState!=I.e_equalLimits){b=this.m_motorMass*(this.m_motorSpeed-(this.m_axis.x*(q.x-j.x)+this.m_axis.y*(q.y-j.y)+this.m_a2*n-this.m_a1*o));a=this.m_motorImpulse;c=d.dt*this.m_maxMotorForce;this.m_motorImpulse=y.Clamp(this.m_motorImpulse+
+b,-c,c);b=this.m_motorImpulse-a;a=b*this.m_axis.x;c=b*this.m_axis.y;g=b*this.m_a1;b=b*this.m_a2;j.x-=this.m_invMassA*a;j.y-=this.m_invMassA*c;o-=this.m_invIA*g;q.x+=this.m_invMassB*a;q.y+=this.m_invMassB*c;n+=this.m_invIB*b}c=this.m_perp.x*(q.x-j.x)+this.m_perp.y*(q.y-j.y)+this.m_s2*n-this.m_s1*o;if(this.m_enableLimit&&this.m_limitState!=I.e_inactiveLimit){g=this.m_axis.x*(q.x-j.x)+this.m_axis.y*(q.y-j.y)+this.m_a2*n-this.m_a1*o;a=this.m_impulse.Copy();d=this.m_K.Solve(new w,-c,-g);this.m_impulse.Add(d);
+if(this.m_limitState==I.e_atLowerLimit)this.m_impulse.y=y.Max(this.m_impulse.y,0);else if(this.m_limitState==I.e_atUpperLimit)this.m_impulse.y=y.Min(this.m_impulse.y,0);c=-c-(this.m_impulse.y-a.y)*this.m_K.col2.x;g=0;g=this.m_K.col1.x!=0?c/this.m_K.col1.x+a.x:a.x;this.m_impulse.x=g;d.x=this.m_impulse.x-a.x;d.y=this.m_impulse.y-a.y;a=d.x*this.m_perp.x+d.y*this.m_axis.x;c=d.x*this.m_perp.y+d.y*this.m_axis.y;g=d.x*this.m_s1+d.y*this.m_a1;b=d.x*this.m_s2+d.y*this.m_a2}else{d=0;d=this.m_K.col1.x!=0?-c/
+this.m_K.col1.x:0;this.m_impulse.x+=d;a=d*this.m_perp.x;c=d*this.m_perp.y;g=d*this.m_s1;b=d*this.m_s2}j.x-=this.m_invMassA*a;j.y-=this.m_invMassA*c;o-=this.m_invIA*g;q.x+=this.m_invMassB*a;q.y+=this.m_invMassB*c;n+=this.m_invIB*b;h.m_linearVelocity.SetV(j);h.m_angularVelocity=o;l.m_linearVelocity.SetV(q);l.m_angularVelocity=n};k.prototype.SolvePositionConstraints=function(){var d=this.m_bodyA,h=this.m_bodyB,l=d.m_sweep.c,j=d.m_sweep.a,o=h.m_sweep.c,q=h.m_sweep.a,n,a=0,c=0,g=0,b=0,e=n=0,f=0;c=false;
+var m=0,r=G.FromAngle(j);g=G.FromAngle(q);n=r;f=this.m_localAnchor1.x-this.m_localCenterA.x;var s=this.m_localAnchor1.y-this.m_localCenterA.y;a=n.col1.x*f+n.col2.x*s;s=n.col1.y*f+n.col2.y*s;f=a;n=g;g=this.m_localAnchor2.x-this.m_localCenterB.x;b=this.m_localAnchor2.y-this.m_localCenterB.y;a=n.col1.x*g+n.col2.x*b;b=n.col1.y*g+n.col2.y*b;g=a;n=o.x+g-l.x-f;a=o.y+b-l.y-s;if(this.m_enableLimit){this.m_axis=y.MulMV(r,this.m_localXAxis1);this.m_a1=(n+f)*this.m_axis.y-(a+s)*this.m_axis.x;this.m_a2=g*this.m_axis.y-
+b*this.m_axis.x;var v=this.m_axis.x*n+this.m_axis.y*a;if(y.Abs(this.m_upperTranslation-this.m_lowerTranslation)<2*F.b2_linearSlop){m=y.Clamp(v,-F.b2_maxLinearCorrection,F.b2_maxLinearCorrection);e=y.Abs(v);c=true}else if(v<=this.m_lowerTranslation){m=y.Clamp(v-this.m_lowerTranslation+F.b2_linearSlop,-F.b2_maxLinearCorrection,0);e=this.m_lowerTranslation-v;c=true}else if(v>=this.m_upperTranslation){m=y.Clamp(v-this.m_upperTranslation+F.b2_linearSlop,0,F.b2_maxLinearCorrection);e=v-this.m_upperTranslation;
+c=true}}this.m_perp=y.MulMV(r,this.m_localYAxis1);this.m_s1=(n+f)*this.m_perp.y-(a+s)*this.m_perp.x;this.m_s2=g*this.m_perp.y-b*this.m_perp.x;r=new w;s=this.m_perp.x*n+this.m_perp.y*a;e=y.Max(e,y.Abs(s));f=0;if(c){c=this.m_invMassA;g=this.m_invMassB;b=this.m_invIA;n=this.m_invIB;this.m_K.col1.x=c+g+b*this.m_s1*this.m_s1+n*this.m_s2*this.m_s2;this.m_K.col1.y=b*this.m_s1*this.m_a1+n*this.m_s2*this.m_a2;this.m_K.col2.x=this.m_K.col1.y;this.m_K.col2.y=c+g+b*this.m_a1*this.m_a1+n*this.m_a2*this.m_a2;this.m_K.Solve(r,
+-s,-m)}else{c=this.m_invMassA;g=this.m_invMassB;b=this.m_invIA;n=this.m_invIB;m=c+g+b*this.m_s1*this.m_s1+n*this.m_s2*this.m_s2;c=0;c=m!=0?-s/m:0;r.x=c;r.y=0}m=r.x*this.m_perp.x+r.y*this.m_axis.x;c=r.x*this.m_perp.y+r.y*this.m_axis.y;s=r.x*this.m_s1+r.y*this.m_a1;r=r.x*this.m_s2+r.y*this.m_a2;l.x-=this.m_invMassA*m;l.y-=this.m_invMassA*c;j-=this.m_invIA*s;o.x+=this.m_invMassB*m;o.y+=this.m_invMassB*c;q+=this.m_invIB*r;d.m_sweep.a=j;h.m_sweep.a=q;d.SynchronizeTransform();h.SynchronizeTransform();return e<=
+F.b2_linearSlop&&f<=F.b2_angularSlop};Box2D.inherit(z,Box2D.Dynamics.Joints.b2JointDef);z.prototype.__super=Box2D.Dynamics.Joints.b2JointDef.prototype;z.b2LineJointDef=function(){Box2D.Dynamics.Joints.b2JointDef.b2JointDef.apply(this,arguments);this.localAnchorA=new w;this.localAnchorB=new w;this.localAxisA=new w};z.prototype.b2LineJointDef=function(){this.__super.b2JointDef.call(this);this.type=I.e_lineJoint;this.localAxisA.Set(1,0);this.enableLimit=false;this.upperTranslation=this.lowerTranslation=
+0;this.enableMotor=false;this.motorSpeed=this.maxMotorForce=0};z.prototype.Initialize=function(d,h,l,j){this.bodyA=d;this.bodyB=h;this.localAnchorA=this.bodyA.GetLocalPoint(l);this.localAnchorB=this.bodyB.GetLocalPoint(l);this.localAxisA=this.bodyA.GetLocalVector(j)};Box2D.inherit(u,Box2D.Dynamics.Joints.b2Joint);u.prototype.__super=Box2D.Dynamics.Joints.b2Joint.prototype;u.b2MouseJoint=function(){Box2D.Dynamics.Joints.b2Joint.b2Joint.apply(this,arguments);this.K=new G;this.K1=new G;this.K2=new G;
+this.m_localAnchor=new w;this.m_target=new w;this.m_impulse=new w;this.m_mass=new G;this.m_C=new w};u.prototype.GetAnchorA=function(){return this.m_target};u.prototype.GetAnchorB=function(){return this.m_bodyB.GetWorldPoint(this.m_localAnchor)};u.prototype.GetReactionForce=function(d){if(d===undefined)d=0;return new w(d*this.m_impulse.x,d*this.m_impulse.y)};u.prototype.GetReactionTorque=function(){return 0};u.prototype.GetTarget=function(){return this.m_target};u.prototype.SetTarget=function(d){this.m_bodyB.IsAwake()==
+false&&this.m_bodyB.SetAwake(true);this.m_target=d};u.prototype.GetMaxForce=function(){return this.m_maxForce};u.prototype.SetMaxForce=function(d){if(d===undefined)d=0;this.m_maxForce=d};u.prototype.GetFrequency=function(){return this.m_frequencyHz};u.prototype.SetFrequency=function(d){if(d===undefined)d=0;this.m_frequencyHz=d};u.prototype.GetDampingRatio=function(){return this.m_dampingRatio};u.prototype.SetDampingRatio=function(d){if(d===undefined)d=0;this.m_dampingRatio=d};u.prototype.b2MouseJoint=
+function(d){this.__super.b2Joint.call(this,d);this.m_target.SetV(d.target);var h=this.m_target.x-this.m_bodyB.m_xf.position.x,l=this.m_target.y-this.m_bodyB.m_xf.position.y,j=this.m_bodyB.m_xf.R;this.m_localAnchor.x=h*j.col1.x+l*j.col1.y;this.m_localAnchor.y=h*j.col2.x+l*j.col2.y;this.m_maxForce=d.maxForce;this.m_impulse.SetZero();this.m_frequencyHz=d.frequencyHz;this.m_dampingRatio=d.dampingRatio;this.m_gamma=this.m_beta=0};u.prototype.InitVelocityConstraints=function(d){var h=this.m_bodyB,l=h.GetMass(),
+j=2*Math.PI*this.m_frequencyHz,o=l*j*j;this.m_gamma=d.dt*(2*l*this.m_dampingRatio*j+d.dt*o);this.m_gamma=this.m_gamma!=0?1/this.m_gamma:0;this.m_beta=d.dt*o*this.m_gamma;o=h.m_xf.R;l=this.m_localAnchor.x-h.m_sweep.localCenter.x;j=this.m_localAnchor.y-h.m_sweep.localCenter.y;var q=o.col1.x*l+o.col2.x*j;j=o.col1.y*l+o.col2.y*j;l=q;o=h.m_invMass;q=h.m_invI;this.K1.col1.x=o;this.K1.col2.x=0;this.K1.col1.y=0;this.K1.col2.y=o;this.K2.col1.x=q*j*j;this.K2.col2.x=-q*l*j;this.K2.col1.y=-q*l*j;this.K2.col2.y=
+q*l*l;this.K.SetM(this.K1);this.K.AddM(this.K2);this.K.col1.x+=this.m_gamma;this.K.col2.y+=this.m_gamma;this.K.GetInverse(this.m_mass);this.m_C.x=h.m_sweep.c.x+l-this.m_target.x;this.m_C.y=h.m_sweep.c.y+j-this.m_target.y;h.m_angularVelocity*=0.98;this.m_impulse.x*=d.dtRatio;this.m_impulse.y*=d.dtRatio;h.m_linearVelocity.x+=o*this.m_impulse.x;h.m_linearVelocity.y+=o*this.m_impulse.y;h.m_angularVelocity+=q*(l*this.m_impulse.y-j*this.m_impulse.x)};u.prototype.SolveVelocityConstraints=function(d){var h=
+this.m_bodyB,l,j=0,o=0;l=h.m_xf.R;var q=this.m_localAnchor.x-h.m_sweep.localCenter.x,n=this.m_localAnchor.y-h.m_sweep.localCenter.y;j=l.col1.x*q+l.col2.x*n;n=l.col1.y*q+l.col2.y*n;q=j;j=h.m_linearVelocity.x+-h.m_angularVelocity*n;var a=h.m_linearVelocity.y+h.m_angularVelocity*q;l=this.m_mass;j=j+this.m_beta*this.m_C.x+this.m_gamma*this.m_impulse.x;o=a+this.m_beta*this.m_C.y+this.m_gamma*this.m_impulse.y;a=-(l.col1.x*j+l.col2.x*o);o=-(l.col1.y*j+l.col2.y*o);l=this.m_impulse.x;j=this.m_impulse.y;this.m_impulse.x+=
+a;this.m_impulse.y+=o;d=d.dt*this.m_maxForce;this.m_impulse.LengthSquared()>d*d&&this.m_impulse.Multiply(d/this.m_impulse.Length());a=this.m_impulse.x-l;o=this.m_impulse.y-j;h.m_linearVelocity.x+=h.m_invMass*a;h.m_linearVelocity.y+=h.m_invMass*o;h.m_angularVelocity+=h.m_invI*(q*o-n*a)};u.prototype.SolvePositionConstraints=function(){return true};Box2D.inherit(D,Box2D.Dynamics.Joints.b2JointDef);D.prototype.__super=Box2D.Dynamics.Joints.b2JointDef.prototype;D.b2MouseJointDef=function(){Box2D.Dynamics.Joints.b2JointDef.b2JointDef.apply(this,
+arguments);this.target=new w};D.prototype.b2MouseJointDef=function(){this.__super.b2JointDef.call(this);this.type=I.e_mouseJoint;this.maxForce=0;this.frequencyHz=5;this.dampingRatio=0.7};Box2D.inherit(H,Box2D.Dynamics.Joints.b2Joint);H.prototype.__super=Box2D.Dynamics.Joints.b2Joint.prototype;H.b2PrismaticJoint=function(){Box2D.Dynamics.Joints.b2Joint.b2Joint.apply(this,arguments);this.m_localAnchor1=new w;this.m_localAnchor2=new w;this.m_localXAxis1=new w;this.m_localYAxis1=new w;this.m_axis=new w;
+this.m_perp=new w;this.m_K=new K;this.m_impulse=new A};H.prototype.GetAnchorA=function(){return this.m_bodyA.GetWorldPoint(this.m_localAnchor1)};H.prototype.GetAnchorB=function(){return this.m_bodyB.GetWorldPoint(this.m_localAnchor2)};H.prototype.GetReactionForce=function(d){if(d===undefined)d=0;return new w(d*(this.m_impulse.x*this.m_perp.x+(this.m_motorImpulse+this.m_impulse.z)*this.m_axis.x),d*(this.m_impulse.x*this.m_perp.y+(this.m_motorImpulse+this.m_impulse.z)*this.m_axis.y))};H.prototype.GetReactionTorque=
+function(d){if(d===undefined)d=0;return d*this.m_impulse.y};H.prototype.GetJointTranslation=function(){var d=this.m_bodyA,h=this.m_bodyB,l=d.GetWorldPoint(this.m_localAnchor1),j=h.GetWorldPoint(this.m_localAnchor2);h=j.x-l.x;l=j.y-l.y;d=d.GetWorldVector(this.m_localXAxis1);return d.x*h+d.y*l};H.prototype.GetJointSpeed=function(){var d=this.m_bodyA,h=this.m_bodyB,l;l=d.m_xf.R;var j=this.m_localAnchor1.x-d.m_sweep.localCenter.x,o=this.m_localAnchor1.y-d.m_sweep.localCenter.y,q=l.col1.x*j+l.col2.x*o;
+o=l.col1.y*j+l.col2.y*o;j=q;l=h.m_xf.R;var n=this.m_localAnchor2.x-h.m_sweep.localCenter.x,a=this.m_localAnchor2.y-h.m_sweep.localCenter.y;q=l.col1.x*n+l.col2.x*a;a=l.col1.y*n+l.col2.y*a;n=q;l=h.m_sweep.c.x+n-(d.m_sweep.c.x+j);q=h.m_sweep.c.y+a-(d.m_sweep.c.y+o);var c=d.GetWorldVector(this.m_localXAxis1),g=d.m_linearVelocity,b=h.m_linearVelocity;d=d.m_angularVelocity;h=h.m_angularVelocity;return l*-d*c.y+q*d*c.x+(c.x*(b.x+-h*a-g.x- -d*o)+c.y*(b.y+h*n-g.y-d*j))};H.prototype.IsLimitEnabled=function(){return this.m_enableLimit};
+H.prototype.EnableLimit=function(d){this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true);this.m_enableLimit=d};H.prototype.GetLowerLimit=function(){return this.m_lowerTranslation};H.prototype.GetUpperLimit=function(){return this.m_upperTranslation};H.prototype.SetLimits=function(d,h){if(d===undefined)d=0;if(h===undefined)h=0;this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true);this.m_lowerTranslation=d;this.m_upperTranslation=h};H.prototype.IsMotorEnabled=function(){return this.m_enableMotor};
+H.prototype.EnableMotor=function(d){this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true);this.m_enableMotor=d};H.prototype.SetMotorSpeed=function(d){if(d===undefined)d=0;this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true);this.m_motorSpeed=d};H.prototype.GetMotorSpeed=function(){return this.m_motorSpeed};H.prototype.SetMaxMotorForce=function(d){if(d===undefined)d=0;this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true);this.m_maxMotorForce=d};H.prototype.GetMotorForce=function(){return this.m_motorImpulse};
+H.prototype.b2PrismaticJoint=function(d){this.__super.b2Joint.call(this,d);this.m_localAnchor1.SetV(d.localAnchorA);this.m_localAnchor2.SetV(d.localAnchorB);this.m_localXAxis1.SetV(d.localAxisA);this.m_localYAxis1.x=-this.m_localXAxis1.y;this.m_localYAxis1.y=this.m_localXAxis1.x;this.m_refAngle=d.referenceAngle;this.m_impulse.SetZero();this.m_motorImpulse=this.m_motorMass=0;this.m_lowerTranslation=d.lowerTranslation;this.m_upperTranslation=d.upperTranslation;this.m_maxMotorForce=d.maxMotorForce;this.m_motorSpeed=
+d.motorSpeed;this.m_enableLimit=d.enableLimit;this.m_enableMotor=d.enableMotor;this.m_limitState=I.e_inactiveLimit;this.m_axis.SetZero();this.m_perp.SetZero()};H.prototype.InitVelocityConstraints=function(d){var h=this.m_bodyA,l=this.m_bodyB,j,o=0;this.m_localCenterA.SetV(h.GetLocalCenter());this.m_localCenterB.SetV(l.GetLocalCenter());var q=h.GetTransform();l.GetTransform();j=h.m_xf.R;var n=this.m_localAnchor1.x-this.m_localCenterA.x,a=this.m_localAnchor1.y-this.m_localCenterA.y;o=j.col1.x*n+j.col2.x*
+a;a=j.col1.y*n+j.col2.y*a;n=o;j=l.m_xf.R;var c=this.m_localAnchor2.x-this.m_localCenterB.x,g=this.m_localAnchor2.y-this.m_localCenterB.y;o=j.col1.x*c+j.col2.x*g;g=j.col1.y*c+j.col2.y*g;c=o;j=l.m_sweep.c.x+c-h.m_sweep.c.x-n;o=l.m_sweep.c.y+g-h.m_sweep.c.y-a;this.m_invMassA=h.m_invMass;this.m_invMassB=l.m_invMass;this.m_invIA=h.m_invI;this.m_invIB=l.m_invI;this.m_axis.SetV(y.MulMV(q.R,this.m_localXAxis1));this.m_a1=(j+n)*this.m_axis.y-(o+a)*this.m_axis.x;this.m_a2=c*this.m_axis.y-g*this.m_axis.x;this.m_motorMass=
+this.m_invMassA+this.m_invMassB+this.m_invIA*this.m_a1*this.m_a1+this.m_invIB*this.m_a2*this.m_a2;if(this.m_motorMass>Number.MIN_VALUE)this.m_motorMass=1/this.m_motorMass;this.m_perp.SetV(y.MulMV(q.R,this.m_localYAxis1));this.m_s1=(j+n)*this.m_perp.y-(o+a)*this.m_perp.x;this.m_s2=c*this.m_perp.y-g*this.m_perp.x;q=this.m_invMassA;n=this.m_invMassB;a=this.m_invIA;c=this.m_invIB;this.m_K.col1.x=q+n+a*this.m_s1*this.m_s1+c*this.m_s2*this.m_s2;this.m_K.col1.y=a*this.m_s1+c*this.m_s2;this.m_K.col1.z=a*
+this.m_s1*this.m_a1+c*this.m_s2*this.m_a2;this.m_K.col2.x=this.m_K.col1.y;this.m_K.col2.y=a+c;this.m_K.col2.z=a*this.m_a1+c*this.m_a2;this.m_K.col3.x=this.m_K.col1.z;this.m_K.col3.y=this.m_K.col2.z;this.m_K.col3.z=q+n+a*this.m_a1*this.m_a1+c*this.m_a2*this.m_a2;if(this.m_enableLimit){j=this.m_axis.x*j+this.m_axis.y*o;if(y.Abs(this.m_upperTranslation-this.m_lowerTranslation)<2*F.b2_linearSlop)this.m_limitState=I.e_equalLimits;else if(j<=this.m_lowerTranslation){if(this.m_limitState!=I.e_atLowerLimit){this.m_limitState=
+I.e_atLowerLimit;this.m_impulse.z=0}}else if(j>=this.m_upperTranslation){if(this.m_limitState!=I.e_atUpperLimit){this.m_limitState=I.e_atUpperLimit;this.m_impulse.z=0}}else{this.m_limitState=I.e_inactiveLimit;this.m_impulse.z=0}}else this.m_limitState=I.e_inactiveLimit;if(this.m_enableMotor==false)this.m_motorImpulse=0;if(d.warmStarting){this.m_impulse.x*=d.dtRatio;this.m_impulse.y*=d.dtRatio;this.m_motorImpulse*=d.dtRatio;d=this.m_impulse.x*this.m_perp.x+(this.m_motorImpulse+this.m_impulse.z)*this.m_axis.x;
+j=this.m_impulse.x*this.m_perp.y+(this.m_motorImpulse+this.m_impulse.z)*this.m_axis.y;o=this.m_impulse.x*this.m_s1+this.m_impulse.y+(this.m_motorImpulse+this.m_impulse.z)*this.m_a1;q=this.m_impulse.x*this.m_s2+this.m_impulse.y+(this.m_motorImpulse+this.m_impulse.z)*this.m_a2;h.m_linearVelocity.x-=this.m_invMassA*d;h.m_linearVelocity.y-=this.m_invMassA*j;h.m_angularVelocity-=this.m_invIA*o;l.m_linearVelocity.x+=this.m_invMassB*d;l.m_linearVelocity.y+=this.m_invMassB*j;l.m_angularVelocity+=this.m_invIB*
+q}else{this.m_impulse.SetZero();this.m_motorImpulse=0}};H.prototype.SolveVelocityConstraints=function(d){var h=this.m_bodyA,l=this.m_bodyB,j=h.m_linearVelocity,o=h.m_angularVelocity,q=l.m_linearVelocity,n=l.m_angularVelocity,a=0,c=0,g=0,b=0;if(this.m_enableMotor&&this.m_limitState!=I.e_equalLimits){b=this.m_motorMass*(this.m_motorSpeed-(this.m_axis.x*(q.x-j.x)+this.m_axis.y*(q.y-j.y)+this.m_a2*n-this.m_a1*o));a=this.m_motorImpulse;d=d.dt*this.m_maxMotorForce;this.m_motorImpulse=y.Clamp(this.m_motorImpulse+
+b,-d,d);b=this.m_motorImpulse-a;a=b*this.m_axis.x;c=b*this.m_axis.y;g=b*this.m_a1;b=b*this.m_a2;j.x-=this.m_invMassA*a;j.y-=this.m_invMassA*c;o-=this.m_invIA*g;q.x+=this.m_invMassB*a;q.y+=this.m_invMassB*c;n+=this.m_invIB*b}g=this.m_perp.x*(q.x-j.x)+this.m_perp.y*(q.y-j.y)+this.m_s2*n-this.m_s1*o;c=n-o;if(this.m_enableLimit&&this.m_limitState!=I.e_inactiveLimit){d=this.m_axis.x*(q.x-j.x)+this.m_axis.y*(q.y-j.y)+this.m_a2*n-this.m_a1*o;a=this.m_impulse.Copy();d=this.m_K.Solve33(new A,-g,-c,-d);this.m_impulse.Add(d);
+if(this.m_limitState==I.e_atLowerLimit)this.m_impulse.z=y.Max(this.m_impulse.z,0);else if(this.m_limitState==I.e_atUpperLimit)this.m_impulse.z=y.Min(this.m_impulse.z,0);g=-g-(this.m_impulse.z-a.z)*this.m_K.col3.x;c=-c-(this.m_impulse.z-a.z)*this.m_K.col3.y;c=this.m_K.Solve22(new w,g,c);c.x+=a.x;c.y+=a.y;this.m_impulse.x=c.x;this.m_impulse.y=c.y;d.x=this.m_impulse.x-a.x;d.y=this.m_impulse.y-a.y;d.z=this.m_impulse.z-a.z;a=d.x*this.m_perp.x+d.z*this.m_axis.x;c=d.x*this.m_perp.y+d.z*this.m_axis.y;g=d.x*
+this.m_s1+d.y+d.z*this.m_a1;b=d.x*this.m_s2+d.y+d.z*this.m_a2}else{d=this.m_K.Solve22(new w,-g,-c);this.m_impulse.x+=d.x;this.m_impulse.y+=d.y;a=d.x*this.m_perp.x;c=d.x*this.m_perp.y;g=d.x*this.m_s1+d.y;b=d.x*this.m_s2+d.y}j.x-=this.m_invMassA*a;j.y-=this.m_invMassA*c;o-=this.m_invIA*g;q.x+=this.m_invMassB*a;q.y+=this.m_invMassB*c;n+=this.m_invIB*b;h.m_linearVelocity.SetV(j);h.m_angularVelocity=o;l.m_linearVelocity.SetV(q);l.m_angularVelocity=n};H.prototype.SolvePositionConstraints=function(){var d=
+this.m_bodyA,h=this.m_bodyB,l=d.m_sweep.c,j=d.m_sweep.a,o=h.m_sweep.c,q=h.m_sweep.a,n,a=0,c=0,g=0,b=a=n=0,e=0;c=false;var f=0,m=G.FromAngle(j),r=G.FromAngle(q);n=m;e=this.m_localAnchor1.x-this.m_localCenterA.x;var s=this.m_localAnchor1.y-this.m_localCenterA.y;a=n.col1.x*e+n.col2.x*s;s=n.col1.y*e+n.col2.y*s;e=a;n=r;r=this.m_localAnchor2.x-this.m_localCenterB.x;g=this.m_localAnchor2.y-this.m_localCenterB.y;a=n.col1.x*r+n.col2.x*g;g=n.col1.y*r+n.col2.y*g;r=a;n=o.x+r-l.x-e;a=o.y+g-l.y-s;if(this.m_enableLimit){this.m_axis=
+y.MulMV(m,this.m_localXAxis1);this.m_a1=(n+e)*this.m_axis.y-(a+s)*this.m_axis.x;this.m_a2=r*this.m_axis.y-g*this.m_axis.x;var v=this.m_axis.x*n+this.m_axis.y*a;if(y.Abs(this.m_upperTranslation-this.m_lowerTranslation)<2*F.b2_linearSlop){f=y.Clamp(v,-F.b2_maxLinearCorrection,F.b2_maxLinearCorrection);b=y.Abs(v);c=true}else if(v<=this.m_lowerTranslation){f=y.Clamp(v-this.m_lowerTranslation+F.b2_linearSlop,-F.b2_maxLinearCorrection,0);b=this.m_lowerTranslation-v;c=true}else if(v>=this.m_upperTranslation){f=
+y.Clamp(v-this.m_upperTranslation+F.b2_linearSlop,0,F.b2_maxLinearCorrection);b=v-this.m_upperTranslation;c=true}}this.m_perp=y.MulMV(m,this.m_localYAxis1);this.m_s1=(n+e)*this.m_perp.y-(a+s)*this.m_perp.x;this.m_s2=r*this.m_perp.y-g*this.m_perp.x;m=new A;s=this.m_perp.x*n+this.m_perp.y*a;r=q-j-this.m_refAngle;b=y.Max(b,y.Abs(s));e=y.Abs(r);if(c){c=this.m_invMassA;g=this.m_invMassB;n=this.m_invIA;a=this.m_invIB;this.m_K.col1.x=c+g+n*this.m_s1*this.m_s1+a*this.m_s2*this.m_s2;this.m_K.col1.y=n*this.m_s1+
+a*this.m_s2;this.m_K.col1.z=n*this.m_s1*this.m_a1+a*this.m_s2*this.m_a2;this.m_K.col2.x=this.m_K.col1.y;this.m_K.col2.y=n+a;this.m_K.col2.z=n*this.m_a1+a*this.m_a2;this.m_K.col3.x=this.m_K.col1.z;this.m_K.col3.y=this.m_K.col2.z;this.m_K.col3.z=c+g+n*this.m_a1*this.m_a1+a*this.m_a2*this.m_a2;this.m_K.Solve33(m,-s,-r,-f)}else{c=this.m_invMassA;g=this.m_invMassB;n=this.m_invIA;a=this.m_invIB;f=n*this.m_s1+a*this.m_s2;v=n+a;this.m_K.col1.Set(c+g+n*this.m_s1*this.m_s1+a*this.m_s2*this.m_s2,f,0);this.m_K.col2.Set(f,
+v,0);f=this.m_K.Solve22(new w,-s,-r);m.x=f.x;m.y=f.y;m.z=0}f=m.x*this.m_perp.x+m.z*this.m_axis.x;c=m.x*this.m_perp.y+m.z*this.m_axis.y;s=m.x*this.m_s1+m.y+m.z*this.m_a1;m=m.x*this.m_s2+m.y+m.z*this.m_a2;l.x-=this.m_invMassA*f;l.y-=this.m_invMassA*c;j-=this.m_invIA*s;o.x+=this.m_invMassB*f;o.y+=this.m_invMassB*c;q+=this.m_invIB*m;d.m_sweep.a=j;h.m_sweep.a=q;d.SynchronizeTransform();h.SynchronizeTransform();return b<=F.b2_linearSlop&&e<=F.b2_angularSlop};Box2D.inherit(O,Box2D.Dynamics.Joints.b2JointDef);
+O.prototype.__super=Box2D.Dynamics.Joints.b2JointDef.prototype;O.b2PrismaticJointDef=function(){Box2D.Dynamics.Joints.b2JointDef.b2JointDef.apply(this,arguments);this.localAnchorA=new w;this.localAnchorB=new w;this.localAxisA=new w};O.prototype.b2PrismaticJointDef=function(){this.__super.b2JointDef.call(this);this.type=I.e_prismaticJoint;this.localAxisA.Set(1,0);this.referenceAngle=0;this.enableLimit=false;this.upperTranslation=this.lowerTranslation=0;this.enableMotor=false;this.motorSpeed=this.maxMotorForce=
+0};O.prototype.Initialize=function(d,h,l,j){this.bodyA=d;this.bodyB=h;this.localAnchorA=this.bodyA.GetLocalPoint(l);this.localAnchorB=this.bodyB.GetLocalPoint(l);this.localAxisA=this.bodyA.GetLocalVector(j);this.referenceAngle=this.bodyB.GetAngle()-this.bodyA.GetAngle()};Box2D.inherit(E,Box2D.Dynamics.Joints.b2Joint);E.prototype.__super=Box2D.Dynamics.Joints.b2Joint.prototype;E.b2PulleyJoint=function(){Box2D.Dynamics.Joints.b2Joint.b2Joint.apply(this,arguments);this.m_groundAnchor1=new w;this.m_groundAnchor2=
+new w;this.m_localAnchor1=new w;this.m_localAnchor2=new w;this.m_u1=new w;this.m_u2=new w};E.prototype.GetAnchorA=function(){return this.m_bodyA.GetWorldPoint(this.m_localAnchor1)};E.prototype.GetAnchorB=function(){return this.m_bodyB.GetWorldPoint(this.m_localAnchor2)};E.prototype.GetReactionForce=function(d){if(d===undefined)d=0;return new w(d*this.m_impulse*this.m_u2.x,d*this.m_impulse*this.m_u2.y)};E.prototype.GetReactionTorque=function(){return 0};E.prototype.GetGroundAnchorA=function(){var d=
+this.m_ground.m_xf.position.Copy();d.Add(this.m_groundAnchor1);return d};E.prototype.GetGroundAnchorB=function(){var d=this.m_ground.m_xf.position.Copy();d.Add(this.m_groundAnchor2);return d};E.prototype.GetLength1=function(){var d=this.m_bodyA.GetWorldPoint(this.m_localAnchor1),h=d.x-(this.m_ground.m_xf.position.x+this.m_groundAnchor1.x);d=d.y-(this.m_ground.m_xf.position.y+this.m_groundAnchor1.y);return Math.sqrt(h*h+d*d)};E.prototype.GetLength2=function(){var d=this.m_bodyB.GetWorldPoint(this.m_localAnchor2),
+h=d.x-(this.m_ground.m_xf.position.x+this.m_groundAnchor2.x);d=d.y-(this.m_ground.m_xf.position.y+this.m_groundAnchor2.y);return Math.sqrt(h*h+d*d)};E.prototype.GetRatio=function(){return this.m_ratio};E.prototype.b2PulleyJoint=function(d){this.__super.b2Joint.call(this,d);this.m_ground=this.m_bodyA.m_world.m_groundBody;this.m_groundAnchor1.x=d.groundAnchorA.x-this.m_ground.m_xf.position.x;this.m_groundAnchor1.y=d.groundAnchorA.y-this.m_ground.m_xf.position.y;this.m_groundAnchor2.x=d.groundAnchorB.x-
+this.m_ground.m_xf.position.x;this.m_groundAnchor2.y=d.groundAnchorB.y-this.m_ground.m_xf.position.y;this.m_localAnchor1.SetV(d.localAnchorA);this.m_localAnchor2.SetV(d.localAnchorB);this.m_ratio=d.ratio;this.m_constant=d.lengthA+this.m_ratio*d.lengthB;this.m_maxLength1=y.Min(d.maxLengthA,this.m_constant-this.m_ratio*E.b2_minPulleyLength);this.m_maxLength2=y.Min(d.maxLengthB,(this.m_constant-E.b2_minPulleyLength)/this.m_ratio);this.m_limitImpulse2=this.m_limitImpulse1=this.m_impulse=0};E.prototype.InitVelocityConstraints=
+function(d){var h=this.m_bodyA,l=this.m_bodyB,j;j=h.m_xf.R;var o=this.m_localAnchor1.x-h.m_sweep.localCenter.x,q=this.m_localAnchor1.y-h.m_sweep.localCenter.y,n=j.col1.x*o+j.col2.x*q;q=j.col1.y*o+j.col2.y*q;o=n;j=l.m_xf.R;var a=this.m_localAnchor2.x-l.m_sweep.localCenter.x,c=this.m_localAnchor2.y-l.m_sweep.localCenter.y;n=j.col1.x*a+j.col2.x*c;c=j.col1.y*a+j.col2.y*c;a=n;j=l.m_sweep.c.x+a;n=l.m_sweep.c.y+c;var g=this.m_ground.m_xf.position.x+this.m_groundAnchor2.x,b=this.m_ground.m_xf.position.y+
+this.m_groundAnchor2.y;this.m_u1.Set(h.m_sweep.c.x+o-(this.m_ground.m_xf.position.x+this.m_groundAnchor1.x),h.m_sweep.c.y+q-(this.m_ground.m_xf.position.y+this.m_groundAnchor1.y));this.m_u2.Set(j-g,n-b);j=this.m_u1.Length();n=this.m_u2.Length();j>F.b2_linearSlop?this.m_u1.Multiply(1/j):this.m_u1.SetZero();n>F.b2_linearSlop?this.m_u2.Multiply(1/n):this.m_u2.SetZero();if(this.m_constant-j-this.m_ratio*n>0){this.m_state=I.e_inactiveLimit;this.m_impulse=0}else this.m_state=I.e_atUpperLimit;if(j<this.m_maxLength1){this.m_limitState1=
+I.e_inactiveLimit;this.m_limitImpulse1=0}else this.m_limitState1=I.e_atUpperLimit;if(n<this.m_maxLength2){this.m_limitState2=I.e_inactiveLimit;this.m_limitImpulse2=0}else this.m_limitState2=I.e_atUpperLimit;j=o*this.m_u1.y-q*this.m_u1.x;n=a*this.m_u2.y-c*this.m_u2.x;this.m_limitMass1=h.m_invMass+h.m_invI*j*j;this.m_limitMass2=l.m_invMass+l.m_invI*n*n;this.m_pulleyMass=this.m_limitMass1+this.m_ratio*this.m_ratio*this.m_limitMass2;this.m_limitMass1=1/this.m_limitMass1;this.m_limitMass2=1/this.m_limitMass2;
+this.m_pulleyMass=1/this.m_pulleyMass;if(d.warmStarting){this.m_impulse*=d.dtRatio;this.m_limitImpulse1*=d.dtRatio;this.m_limitImpulse2*=d.dtRatio;d=(-this.m_impulse-this.m_limitImpulse1)*this.m_u1.x;j=(-this.m_impulse-this.m_limitImpulse1)*this.m_u1.y;n=(-this.m_ratio*this.m_impulse-this.m_limitImpulse2)*this.m_u2.x;g=(-this.m_ratio*this.m_impulse-this.m_limitImpulse2)*this.m_u2.y;h.m_linearVelocity.x+=h.m_invMass*d;h.m_linearVelocity.y+=h.m_invMass*j;h.m_angularVelocity+=h.m_invI*(o*j-q*d);l.m_linearVelocity.x+=
+l.m_invMass*n;l.m_linearVelocity.y+=l.m_invMass*g;l.m_angularVelocity+=l.m_invI*(a*g-c*n)}else this.m_limitImpulse2=this.m_limitImpulse1=this.m_impulse=0};E.prototype.SolveVelocityConstraints=function(){var d=this.m_bodyA,h=this.m_bodyB,l;l=d.m_xf.R;var j=this.m_localAnchor1.x-d.m_sweep.localCenter.x,o=this.m_localAnchor1.y-d.m_sweep.localCenter.y,q=l.col1.x*j+l.col2.x*o;o=l.col1.y*j+l.col2.y*o;j=q;l=h.m_xf.R;var n=this.m_localAnchor2.x-h.m_sweep.localCenter.x,a=this.m_localAnchor2.y-h.m_sweep.localCenter.y;
+q=l.col1.x*n+l.col2.x*a;a=l.col1.y*n+l.col2.y*a;n=q;var c=q=l=0,g=0;l=g=l=g=c=q=l=0;if(this.m_state==I.e_atUpperLimit){l=d.m_linearVelocity.x+-d.m_angularVelocity*o;q=d.m_linearVelocity.y+d.m_angularVelocity*j;c=h.m_linearVelocity.x+-h.m_angularVelocity*a;g=h.m_linearVelocity.y+h.m_angularVelocity*n;l=-(this.m_u1.x*l+this.m_u1.y*q)-this.m_ratio*(this.m_u2.x*c+this.m_u2.y*g);g=this.m_pulleyMass*-l;l=this.m_impulse;this.m_impulse=y.Max(0,this.m_impulse+g);g=this.m_impulse-l;l=-g*this.m_u1.x;q=-g*this.m_u1.y;
+c=-this.m_ratio*g*this.m_u2.x;g=-this.m_ratio*g*this.m_u2.y;d.m_linearVelocity.x+=d.m_invMass*l;d.m_linearVelocity.y+=d.m_invMass*q;d.m_angularVelocity+=d.m_invI*(j*q-o*l);h.m_linearVelocity.x+=h.m_invMass*c;h.m_linearVelocity.y+=h.m_invMass*g;h.m_angularVelocity+=h.m_invI*(n*g-a*c)}if(this.m_limitState1==I.e_atUpperLimit){l=d.m_linearVelocity.x+-d.m_angularVelocity*o;q=d.m_linearVelocity.y+d.m_angularVelocity*j;l=-(this.m_u1.x*l+this.m_u1.y*q);g=-this.m_limitMass1*l;l=this.m_limitImpulse1;this.m_limitImpulse1=
+y.Max(0,this.m_limitImpulse1+g);g=this.m_limitImpulse1-l;l=-g*this.m_u1.x;q=-g*this.m_u1.y;d.m_linearVelocity.x+=d.m_invMass*l;d.m_linearVelocity.y+=d.m_invMass*q;d.m_angularVelocity+=d.m_invI*(j*q-o*l)}if(this.m_limitState2==I.e_atUpperLimit){c=h.m_linearVelocity.x+-h.m_angularVelocity*a;g=h.m_linearVelocity.y+h.m_angularVelocity*n;l=-(this.m_u2.x*c+this.m_u2.y*g);g=-this.m_limitMass2*l;l=this.m_limitImpulse2;this.m_limitImpulse2=y.Max(0,this.m_limitImpulse2+g);g=this.m_limitImpulse2-l;c=-g*this.m_u2.x;
+g=-g*this.m_u2.y;h.m_linearVelocity.x+=h.m_invMass*c;h.m_linearVelocity.y+=h.m_invMass*g;h.m_angularVelocity+=h.m_invI*(n*g-a*c)}};E.prototype.SolvePositionConstraints=function(){var d=this.m_bodyA,h=this.m_bodyB,l,j=this.m_ground.m_xf.position.x+this.m_groundAnchor1.x,o=this.m_ground.m_xf.position.y+this.m_groundAnchor1.y,q=this.m_ground.m_xf.position.x+this.m_groundAnchor2.x,n=this.m_ground.m_xf.position.y+this.m_groundAnchor2.y,a=0,c=0,g=0,b=0,e=l=0,f=0,m=0,r=e=m=l=e=l=0;if(this.m_state==I.e_atUpperLimit){l=
+d.m_xf.R;a=this.m_localAnchor1.x-d.m_sweep.localCenter.x;c=this.m_localAnchor1.y-d.m_sweep.localCenter.y;e=l.col1.x*a+l.col2.x*c;c=l.col1.y*a+l.col2.y*c;a=e;l=h.m_xf.R;g=this.m_localAnchor2.x-h.m_sweep.localCenter.x;b=this.m_localAnchor2.y-h.m_sweep.localCenter.y;e=l.col1.x*g+l.col2.x*b;b=l.col1.y*g+l.col2.y*b;g=e;l=d.m_sweep.c.x+a;e=d.m_sweep.c.y+c;f=h.m_sweep.c.x+g;m=h.m_sweep.c.y+b;this.m_u1.Set(l-j,e-o);this.m_u2.Set(f-q,m-n);l=this.m_u1.Length();e=this.m_u2.Length();l>F.b2_linearSlop?this.m_u1.Multiply(1/
+l):this.m_u1.SetZero();e>F.b2_linearSlop?this.m_u2.Multiply(1/e):this.m_u2.SetZero();l=this.m_constant-l-this.m_ratio*e;r=y.Max(r,-l);l=y.Clamp(l+F.b2_linearSlop,-F.b2_maxLinearCorrection,0);m=-this.m_pulleyMass*l;l=-m*this.m_u1.x;e=-m*this.m_u1.y;f=-this.m_ratio*m*this.m_u2.x;m=-this.m_ratio*m*this.m_u2.y;d.m_sweep.c.x+=d.m_invMass*l;d.m_sweep.c.y+=d.m_invMass*e;d.m_sweep.a+=d.m_invI*(a*e-c*l);h.m_sweep.c.x+=h.m_invMass*f;h.m_sweep.c.y+=h.m_invMass*m;h.m_sweep.a+=h.m_invI*(g*m-b*f);d.SynchronizeTransform();
+h.SynchronizeTransform()}if(this.m_limitState1==I.e_atUpperLimit){l=d.m_xf.R;a=this.m_localAnchor1.x-d.m_sweep.localCenter.x;c=this.m_localAnchor1.y-d.m_sweep.localCenter.y;e=l.col1.x*a+l.col2.x*c;c=l.col1.y*a+l.col2.y*c;a=e;l=d.m_sweep.c.x+a;e=d.m_sweep.c.y+c;this.m_u1.Set(l-j,e-o);l=this.m_u1.Length();if(l>F.b2_linearSlop){this.m_u1.x*=1/l;this.m_u1.y*=1/l}else this.m_u1.SetZero();l=this.m_maxLength1-l;r=y.Max(r,-l);l=y.Clamp(l+F.b2_linearSlop,-F.b2_maxLinearCorrection,0);m=-this.m_limitMass1*l;
+l=-m*this.m_u1.x;e=-m*this.m_u1.y;d.m_sweep.c.x+=d.m_invMass*l;d.m_sweep.c.y+=d.m_invMass*e;d.m_sweep.a+=d.m_invI*(a*e-c*l);d.SynchronizeTransform()}if(this.m_limitState2==I.e_atUpperLimit){l=h.m_xf.R;g=this.m_localAnchor2.x-h.m_sweep.localCenter.x;b=this.m_localAnchor2.y-h.m_sweep.localCenter.y;e=l.col1.x*g+l.col2.x*b;b=l.col1.y*g+l.col2.y*b;g=e;f=h.m_sweep.c.x+g;m=h.m_sweep.c.y+b;this.m_u2.Set(f-q,m-n);e=this.m_u2.Length();if(e>F.b2_linearSlop){this.m_u2.x*=1/e;this.m_u2.y*=1/e}else this.m_u2.SetZero();
+l=this.m_maxLength2-e;r=y.Max(r,-l);l=y.Clamp(l+F.b2_linearSlop,-F.b2_maxLinearCorrection,0);m=-this.m_limitMass2*l;f=-m*this.m_u2.x;m=-m*this.m_u2.y;h.m_sweep.c.x+=h.m_invMass*f;h.m_sweep.c.y+=h.m_invMass*m;h.m_sweep.a+=h.m_invI*(g*m-b*f);h.SynchronizeTransform()}return r<F.b2_linearSlop};Box2D.postDefs.push(function(){Box2D.Dynamics.Joints.b2PulleyJoint.b2_minPulleyLength=2});Box2D.inherit(R,Box2D.Dynamics.Joints.b2JointDef);R.prototype.__super=Box2D.Dynamics.Joints.b2JointDef.prototype;R.b2PulleyJointDef=
+function(){Box2D.Dynamics.Joints.b2JointDef.b2JointDef.apply(this,arguments);this.groundAnchorA=new w;this.groundAnchorB=new w;this.localAnchorA=new w;this.localAnchorB=new w};R.prototype.b2PulleyJointDef=function(){this.__super.b2JointDef.call(this);this.type=I.e_pulleyJoint;this.groundAnchorA.Set(-1,1);this.groundAnchorB.Set(1,1);this.localAnchorA.Set(-1,0);this.localAnchorB.Set(1,0);this.maxLengthB=this.lengthB=this.maxLengthA=this.lengthA=0;this.ratio=1;this.collideConnected=true};R.prototype.Initialize=
+function(d,h,l,j,o,q,n){if(n===undefined)n=0;this.bodyA=d;this.bodyB=h;this.groundAnchorA.SetV(l);this.groundAnchorB.SetV(j);this.localAnchorA=this.bodyA.GetLocalPoint(o);this.localAnchorB=this.bodyB.GetLocalPoint(q);d=o.x-l.x;l=o.y-l.y;this.lengthA=Math.sqrt(d*d+l*l);l=q.x-j.x;j=q.y-j.y;this.lengthB=Math.sqrt(l*l+j*j);this.ratio=n;n=this.lengthA+this.ratio*this.lengthB;this.maxLengthA=n-this.ratio*E.b2_minPulleyLength;this.maxLengthB=(n-E.b2_minPulleyLength)/this.ratio};Box2D.inherit(N,Box2D.Dynamics.Joints.b2Joint);
+N.prototype.__super=Box2D.Dynamics.Joints.b2Joint.prototype;N.b2RevoluteJoint=function(){Box2D.Dynamics.Joints.b2Joint.b2Joint.apply(this,arguments);this.K=new G;this.K1=new G;this.K2=new G;this.K3=new G;this.impulse3=new A;this.impulse2=new w;this.reduced=new w;this.m_localAnchor1=new w;this.m_localAnchor2=new w;this.m_impulse=new A;this.m_mass=new K};N.prototype.GetAnchorA=function(){return this.m_bodyA.GetWorldPoint(this.m_localAnchor1)};N.prototype.GetAnchorB=function(){return this.m_bodyB.GetWorldPoint(this.m_localAnchor2)};
+N.prototype.GetReactionForce=function(d){if(d===undefined)d=0;return new w(d*this.m_impulse.x,d*this.m_impulse.y)};N.prototype.GetReactionTorque=function(d){if(d===undefined)d=0;return d*this.m_impulse.z};N.prototype.GetJointAngle=function(){return this.m_bodyB.m_sweep.a-this.m_bodyA.m_sweep.a-this.m_referenceAngle};N.prototype.GetJointSpeed=function(){return this.m_bodyB.m_angularVelocity-this.m_bodyA.m_angularVelocity};N.prototype.IsLimitEnabled=function(){return this.m_enableLimit};N.prototype.EnableLimit=
+function(d){this.m_enableLimit=d};N.prototype.GetLowerLimit=function(){return this.m_lowerAngle};N.prototype.GetUpperLimit=function(){return this.m_upperAngle};N.prototype.SetLimits=function(d,h){if(d===undefined)d=0;if(h===undefined)h=0;this.m_lowerAngle=d;this.m_upperAngle=h};N.prototype.IsMotorEnabled=function(){this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true);return this.m_enableMotor};N.prototype.EnableMotor=function(d){this.m_enableMotor=d};N.prototype.SetMotorSpeed=function(d){if(d===
+undefined)d=0;this.m_bodyA.SetAwake(true);this.m_bodyB.SetAwake(true);this.m_motorSpeed=d};N.prototype.GetMotorSpeed=function(){return this.m_motorSpeed};N.prototype.SetMaxMotorTorque=function(d){if(d===undefined)d=0;this.m_maxMotorTorque=d};N.prototype.GetMotorTorque=function(){return this.m_maxMotorTorque};N.prototype.b2RevoluteJoint=function(d){this.__super.b2Joint.call(this,d);this.m_localAnchor1.SetV(d.localAnchorA);this.m_localAnchor2.SetV(d.localAnchorB);this.m_referenceAngle=d.referenceAngle;
+this.m_impulse.SetZero();this.m_motorImpulse=0;this.m_lowerAngle=d.lowerAngle;this.m_upperAngle=d.upperAngle;this.m_maxMotorTorque=d.maxMotorTorque;this.m_motorSpeed=d.motorSpeed;this.m_enableLimit=d.enableLimit;this.m_enableMotor=d.enableMotor;this.m_limitState=I.e_inactiveLimit};N.prototype.InitVelocityConstraints=function(d){var h=this.m_bodyA,l=this.m_bodyB,j,o=0;j=h.m_xf.R;var q=this.m_localAnchor1.x-h.m_sweep.localCenter.x,n=this.m_localAnchor1.y-h.m_sweep.localCenter.y;o=j.col1.x*q+j.col2.x*
+n;n=j.col1.y*q+j.col2.y*n;q=o;j=l.m_xf.R;var a=this.m_localAnchor2.x-l.m_sweep.localCenter.x,c=this.m_localAnchor2.y-l.m_sweep.localCenter.y;o=j.col1.x*a+j.col2.x*c;c=j.col1.y*a+j.col2.y*c;a=o;j=h.m_invMass;o=l.m_invMass;var g=h.m_invI,b=l.m_invI;this.m_mass.col1.x=j+o+n*n*g+c*c*b;this.m_mass.col2.x=-n*q*g-c*a*b;this.m_mass.col3.x=-n*g-c*b;this.m_mass.col1.y=this.m_mass.col2.x;this.m_mass.col2.y=j+o+q*q*g+a*a*b;this.m_mass.col3.y=q*g+a*b;this.m_mass.col1.z=this.m_mass.col3.x;this.m_mass.col2.z=this.m_mass.col3.y;
+this.m_mass.col3.z=g+b;this.m_motorMass=1/(g+b);if(this.m_enableMotor==false)this.m_motorImpulse=0;if(this.m_enableLimit){var e=l.m_sweep.a-h.m_sweep.a-this.m_referenceAngle;if(y.Abs(this.m_upperAngle-this.m_lowerAngle)<2*F.b2_angularSlop)this.m_limitState=I.e_equalLimits;else if(e<=this.m_lowerAngle){if(this.m_limitState!=I.e_atLowerLimit)this.m_impulse.z=0;this.m_limitState=I.e_atLowerLimit}else if(e>=this.m_upperAngle){if(this.m_limitState!=I.e_atUpperLimit)this.m_impulse.z=0;this.m_limitState=
+I.e_atUpperLimit}else{this.m_limitState=I.e_inactiveLimit;this.m_impulse.z=0}}else this.m_limitState=I.e_inactiveLimit;if(d.warmStarting){this.m_impulse.x*=d.dtRatio;this.m_impulse.y*=d.dtRatio;this.m_motorImpulse*=d.dtRatio;d=this.m_impulse.x;e=this.m_impulse.y;h.m_linearVelocity.x-=j*d;h.m_linearVelocity.y-=j*e;h.m_angularVelocity-=g*(q*e-n*d+this.m_motorImpulse+this.m_impulse.z);l.m_linearVelocity.x+=o*d;l.m_linearVelocity.y+=o*e;l.m_angularVelocity+=b*(a*e-c*d+this.m_motorImpulse+this.m_impulse.z)}else{this.m_impulse.SetZero();
+this.m_motorImpulse=0}};N.prototype.SolveVelocityConstraints=function(d){var h=this.m_bodyA,l=this.m_bodyB,j=0,o=j=0,q=0,n=0,a=0,c=h.m_linearVelocity,g=h.m_angularVelocity,b=l.m_linearVelocity,e=l.m_angularVelocity,f=h.m_invMass,m=l.m_invMass,r=h.m_invI,s=l.m_invI;if(this.m_enableMotor&&this.m_limitState!=I.e_equalLimits){o=this.m_motorMass*-(e-g-this.m_motorSpeed);q=this.m_motorImpulse;n=d.dt*this.m_maxMotorTorque;this.m_motorImpulse=y.Clamp(this.m_motorImpulse+o,-n,n);o=this.m_motorImpulse-q;g-=
+r*o;e+=s*o}if(this.m_enableLimit&&this.m_limitState!=I.e_inactiveLimit){d=h.m_xf.R;o=this.m_localAnchor1.x-h.m_sweep.localCenter.x;q=this.m_localAnchor1.y-h.m_sweep.localCenter.y;j=d.col1.x*o+d.col2.x*q;q=d.col1.y*o+d.col2.y*q;o=j;d=l.m_xf.R;n=this.m_localAnchor2.x-l.m_sweep.localCenter.x;a=this.m_localAnchor2.y-l.m_sweep.localCenter.y;j=d.col1.x*n+d.col2.x*a;a=d.col1.y*n+d.col2.y*a;n=j;d=b.x+-e*a-c.x- -g*q;var v=b.y+e*n-c.y-g*o;this.m_mass.Solve33(this.impulse3,-d,-v,-(e-g));if(this.m_limitState==
+I.e_equalLimits)this.m_impulse.Add(this.impulse3);else if(this.m_limitState==I.e_atLowerLimit){j=this.m_impulse.z+this.impulse3.z;if(j<0){this.m_mass.Solve22(this.reduced,-d,-v);this.impulse3.x=this.reduced.x;this.impulse3.y=this.reduced.y;this.impulse3.z=-this.m_impulse.z;this.m_impulse.x+=this.reduced.x;this.m_impulse.y+=this.reduced.y;this.m_impulse.z=0}}else if(this.m_limitState==I.e_atUpperLimit){j=this.m_impulse.z+this.impulse3.z;if(j>0){this.m_mass.Solve22(this.reduced,-d,-v);this.impulse3.x=
+this.reduced.x;this.impulse3.y=this.reduced.y;this.impulse3.z=-this.m_impulse.z;this.m_impulse.x+=this.reduced.x;this.m_impulse.y+=this.reduced.y;this.m_impulse.z=0}}c.x-=f*this.impulse3.x;c.y-=f*this.impulse3.y;g-=r*(o*this.impulse3.y-q*this.impulse3.x+this.impulse3.z);b.x+=m*this.impulse3.x;b.y+=m*this.impulse3.y;e+=s*(n*this.impulse3.y-a*this.impulse3.x+this.impulse3.z)}else{d=h.m_xf.R;o=this.m_localAnchor1.x-h.m_sweep.localCenter.x;q=this.m_localAnchor1.y-h.m_sweep.localCenter.y;j=d.col1.x*o+
+d.col2.x*q;q=d.col1.y*o+d.col2.y*q;o=j;d=l.m_xf.R;n=this.m_localAnchor2.x-l.m_sweep.localCenter.x;a=this.m_localAnchor2.y-l.m_sweep.localCenter.y;j=d.col1.x*n+d.col2.x*a;a=d.col1.y*n+d.col2.y*a;n=j;this.m_mass.Solve22(this.impulse2,-(b.x+-e*a-c.x- -g*q),-(b.y+e*n-c.y-g*o));this.m_impulse.x+=this.impulse2.x;this.m_impulse.y+=this.impulse2.y;c.x-=f*this.impulse2.x;c.y-=f*this.impulse2.y;g-=r*(o*this.impulse2.y-q*this.impulse2.x);b.x+=m*this.impulse2.x;b.y+=m*this.impulse2.y;e+=s*(n*this.impulse2.y-
+a*this.impulse2.x)}h.m_linearVelocity.SetV(c);h.m_angularVelocity=g;l.m_linearVelocity.SetV(b);l.m_angularVelocity=e};N.prototype.SolvePositionConstraints=function(){var d=0,h,l=this.m_bodyA,j=this.m_bodyB,o=0,q=h=0,n=0,a=0;if(this.m_enableLimit&&this.m_limitState!=I.e_inactiveLimit){d=j.m_sweep.a-l.m_sweep.a-this.m_referenceAngle;var c=0;if(this.m_limitState==I.e_equalLimits){d=y.Clamp(d-this.m_lowerAngle,-F.b2_maxAngularCorrection,F.b2_maxAngularCorrection);c=-this.m_motorMass*d;o=y.Abs(d)}else if(this.m_limitState==
+I.e_atLowerLimit){d=d-this.m_lowerAngle;o=-d;d=y.Clamp(d+F.b2_angularSlop,-F.b2_maxAngularCorrection,0);c=-this.m_motorMass*d}else if(this.m_limitState==I.e_atUpperLimit){o=d=d-this.m_upperAngle;d=y.Clamp(d-F.b2_angularSlop,0,F.b2_maxAngularCorrection);c=-this.m_motorMass*d}l.m_sweep.a-=l.m_invI*c;j.m_sweep.a+=j.m_invI*c;l.SynchronizeTransform();j.SynchronizeTransform()}h=l.m_xf.R;c=this.m_localAnchor1.x-l.m_sweep.localCenter.x;d=this.m_localAnchor1.y-l.m_sweep.localCenter.y;q=h.col1.x*c+h.col2.x*
+d;d=h.col1.y*c+h.col2.y*d;c=q;h=j.m_xf.R;var g=this.m_localAnchor2.x-j.m_sweep.localCenter.x,b=this.m_localAnchor2.y-j.m_sweep.localCenter.y;q=h.col1.x*g+h.col2.x*b;b=h.col1.y*g+h.col2.y*b;g=q;n=j.m_sweep.c.x+g-l.m_sweep.c.x-c;a=j.m_sweep.c.y+b-l.m_sweep.c.y-d;var e=n*n+a*a;h=Math.sqrt(e);q=l.m_invMass;var f=j.m_invMass,m=l.m_invI,r=j.m_invI,s=10*F.b2_linearSlop;if(e>s*s){e=1/(q+f);n=e*-n;a=e*-a;l.m_sweep.c.x-=0.5*q*n;l.m_sweep.c.y-=0.5*q*a;j.m_sweep.c.x+=0.5*f*n;j.m_sweep.c.y+=0.5*f*a;n=j.m_sweep.c.x+
+g-l.m_sweep.c.x-c;a=j.m_sweep.c.y+b-l.m_sweep.c.y-d}this.K1.col1.x=q+f;this.K1.col2.x=0;this.K1.col1.y=0;this.K1.col2.y=q+f;this.K2.col1.x=m*d*d;this.K2.col2.x=-m*c*d;this.K2.col1.y=-m*c*d;this.K2.col2.y=m*c*c;this.K3.col1.x=r*b*b;this.K3.col2.x=-r*g*b;this.K3.col1.y=-r*g*b;this.K3.col2.y=r*g*g;this.K.SetM(this.K1);this.K.AddM(this.K2);this.K.AddM(this.K3);this.K.Solve(N.tImpulse,-n,-a);n=N.tImpulse.x;a=N.tImpulse.y;l.m_sweep.c.x-=l.m_invMass*n;l.m_sweep.c.y-=l.m_invMass*a;l.m_sweep.a-=l.m_invI*(c*
+a-d*n);j.m_sweep.c.x+=j.m_invMass*n;j.m_sweep.c.y+=j.m_invMass*a;j.m_sweep.a+=j.m_invI*(g*a-b*n);l.SynchronizeTransform();j.SynchronizeTransform();return h<=F.b2_linearSlop&&o<=F.b2_angularSlop};Box2D.postDefs.push(function(){Box2D.Dynamics.Joints.b2RevoluteJoint.tImpulse=new w});Box2D.inherit(S,Box2D.Dynamics.Joints.b2JointDef);S.prototype.__super=Box2D.Dynamics.Joints.b2JointDef.prototype;S.b2RevoluteJointDef=function(){Box2D.Dynamics.Joints.b2JointDef.b2JointDef.apply(this,arguments);this.localAnchorA=
+new w;this.localAnchorB=new w};S.prototype.b2RevoluteJointDef=function(){this.__super.b2JointDef.call(this);this.type=I.e_revoluteJoint;this.localAnchorA.Set(0,0);this.localAnchorB.Set(0,0);this.motorSpeed=this.maxMotorTorque=this.upperAngle=this.lowerAngle=this.referenceAngle=0;this.enableMotor=this.enableLimit=false};S.prototype.Initialize=function(d,h,l){this.bodyA=d;this.bodyB=h;this.localAnchorA=this.bodyA.GetLocalPoint(l);this.localAnchorB=this.bodyB.GetLocalPoint(l);this.referenceAngle=this.bodyB.GetAngle()-
+this.bodyA.GetAngle()};Box2D.inherit(aa,Box2D.Dynamics.Joints.b2Joint);aa.prototype.__super=Box2D.Dynamics.Joints.b2Joint.prototype;aa.b2WeldJoint=function(){Box2D.Dynamics.Joints.b2Joint.b2Joint.apply(this,arguments);this.m_localAnchorA=new w;this.m_localAnchorB=new w;this.m_impulse=new A;this.m_mass=new K};aa.prototype.GetAnchorA=function(){return this.m_bodyA.GetWorldPoint(this.m_localAnchorA)};aa.prototype.GetAnchorB=function(){return this.m_bodyB.GetWorldPoint(this.m_localAnchorB)};aa.prototype.GetReactionForce=
+function(d){if(d===undefined)d=0;return new w(d*this.m_impulse.x,d*this.m_impulse.y)};aa.prototype.GetReactionTorque=function(d){if(d===undefined)d=0;return d*this.m_impulse.z};aa.prototype.b2WeldJoint=function(d){this.__super.b2Joint.call(this,d);this.m_localAnchorA.SetV(d.localAnchorA);this.m_localAnchorB.SetV(d.localAnchorB);this.m_referenceAngle=d.referenceAngle;this.m_impulse.SetZero();this.m_mass=new K};aa.prototype.InitVelocityConstraints=function(d){var h,l=0,j=this.m_bodyA,o=this.m_bodyB;
+h=j.m_xf.R;var q=this.m_localAnchorA.x-j.m_sweep.localCenter.x,n=this.m_localAnchorA.y-j.m_sweep.localCenter.y;l=h.col1.x*q+h.col2.x*n;n=h.col1.y*q+h.col2.y*n;q=l;h=o.m_xf.R;var a=this.m_localAnchorB.x-o.m_sweep.localCenter.x,c=this.m_localAnchorB.y-o.m_sweep.localCenter.y;l=h.col1.x*a+h.col2.x*c;c=h.col1.y*a+h.col2.y*c;a=l;h=j.m_invMass;l=o.m_invMass;var g=j.m_invI,b=o.m_invI;this.m_mass.col1.x=h+l+n*n*g+c*c*b;this.m_mass.col2.x=-n*q*g-c*a*b;this.m_mass.col3.x=-n*g-c*b;this.m_mass.col1.y=this.m_mass.col2.x;
+this.m_mass.col2.y=h+l+q*q*g+a*a*b;this.m_mass.col3.y=q*g+a*b;this.m_mass.col1.z=this.m_mass.col3.x;this.m_mass.col2.z=this.m_mass.col3.y;this.m_mass.col3.z=g+b;if(d.warmStarting){this.m_impulse.x*=d.dtRatio;this.m_impulse.y*=d.dtRatio;this.m_impulse.z*=d.dtRatio;j.m_linearVelocity.x-=h*this.m_impulse.x;j.m_linearVelocity.y-=h*this.m_impulse.y;j.m_angularVelocity-=g*(q*this.m_impulse.y-n*this.m_impulse.x+this.m_impulse.z);o.m_linearVelocity.x+=l*this.m_impulse.x;o.m_linearVelocity.y+=l*this.m_impulse.y;
+o.m_angularVelocity+=b*(a*this.m_impulse.y-c*this.m_impulse.x+this.m_impulse.z)}else this.m_impulse.SetZero()};aa.prototype.SolveVelocityConstraints=function(){var d,h=0,l=this.m_bodyA,j=this.m_bodyB,o=l.m_linearVelocity,q=l.m_angularVelocity,n=j.m_linearVelocity,a=j.m_angularVelocity,c=l.m_invMass,g=j.m_invMass,b=l.m_invI,e=j.m_invI;d=l.m_xf.R;var f=this.m_localAnchorA.x-l.m_sweep.localCenter.x,m=this.m_localAnchorA.y-l.m_sweep.localCenter.y;h=d.col1.x*f+d.col2.x*m;m=d.col1.y*f+d.col2.y*m;f=h;d=
+j.m_xf.R;var r=this.m_localAnchorB.x-j.m_sweep.localCenter.x,s=this.m_localAnchorB.y-j.m_sweep.localCenter.y;h=d.col1.x*r+d.col2.x*s;s=d.col1.y*r+d.col2.y*s;r=h;d=n.x-a*s-o.x+q*m;h=n.y+a*r-o.y-q*f;var v=a-q,t=new A;this.m_mass.Solve33(t,-d,-h,-v);this.m_impulse.Add(t);o.x-=c*t.x;o.y-=c*t.y;q-=b*(f*t.y-m*t.x+t.z);n.x+=g*t.x;n.y+=g*t.y;a+=e*(r*t.y-s*t.x+t.z);l.m_angularVelocity=q;j.m_angularVelocity=a};aa.prototype.SolvePositionConstraints=function(){var d,h=0,l=this.m_bodyA,j=this.m_bodyB;d=l.m_xf.R;
+var o=this.m_localAnchorA.x-l.m_sweep.localCenter.x,q=this.m_localAnchorA.y-l.m_sweep.localCenter.y;h=d.col1.x*o+d.col2.x*q;q=d.col1.y*o+d.col2.y*q;o=h;d=j.m_xf.R;var n=this.m_localAnchorB.x-j.m_sweep.localCenter.x,a=this.m_localAnchorB.y-j.m_sweep.localCenter.y;h=d.col1.x*n+d.col2.x*a;a=d.col1.y*n+d.col2.y*a;n=h;d=l.m_invMass;h=j.m_invMass;var c=l.m_invI,g=j.m_invI,b=j.m_sweep.c.x+n-l.m_sweep.c.x-o,e=j.m_sweep.c.y+a-l.m_sweep.c.y-q,f=j.m_sweep.a-l.m_sweep.a-this.m_referenceAngle,m=10*F.b2_linearSlop,
+r=Math.sqrt(b*b+e*e),s=y.Abs(f);if(r>m){c*=1;g*=1}this.m_mass.col1.x=d+h+q*q*c+a*a*g;this.m_mass.col2.x=-q*o*c-a*n*g;this.m_mass.col3.x=-q*c-a*g;this.m_mass.col1.y=this.m_mass.col2.x;this.m_mass.col2.y=d+h+o*o*c+n*n*g;this.m_mass.col3.y=o*c+n*g;this.m_mass.col1.z=this.m_mass.col3.x;this.m_mass.col2.z=this.m_mass.col3.y;this.m_mass.col3.z=c+g;m=new A;this.m_mass.Solve33(m,-b,-e,-f);l.m_sweep.c.x-=d*m.x;l.m_sweep.c.y-=d*m.y;l.m_sweep.a-=c*(o*m.y-q*m.x+m.z);j.m_sweep.c.x+=h*m.x;j.m_sweep.c.y+=h*m.y;
+j.m_sweep.a+=g*(n*m.y-a*m.x+m.z);l.SynchronizeTransform();j.SynchronizeTransform();return r<=F.b2_linearSlop&&s<=F.b2_angularSlop};Box2D.inherit(Z,Box2D.Dynamics.Joints.b2JointDef);Z.prototype.__super=Box2D.Dynamics.Joints.b2JointDef.prototype;Z.b2WeldJointDef=function(){Box2D.Dynamics.Joints.b2JointDef.b2JointDef.apply(this,arguments);this.localAnchorA=new w;this.localAnchorB=new w};Z.prototype.b2WeldJointDef=function(){this.__super.b2JointDef.call(this);this.type=I.e_weldJoint;this.referenceAngle=
+0};Z.prototype.Initialize=function(d,h,l){this.bodyA=d;this.bodyB=h;this.localAnchorA.SetV(this.bodyA.GetLocalPoint(l));this.localAnchorB.SetV(this.bodyB.GetLocalPoint(l));this.referenceAngle=this.bodyB.GetAngle()-this.bodyA.GetAngle()}})();
+(function(){var F=Box2D.Dynamics.b2DebugDraw;F.b2DebugDraw=function(){this.m_xformScale=this.m_fillAlpha=this.m_alpha=this.m_lineThickness=this.m_drawScale=1;var G=this;this.m_sprite={graphics:{clear:function(){G.m_ctx.clearRect(0,0,G.m_ctx.canvas.width,G.m_ctx.canvas.height)}}}};F.prototype._color=function(G,K){return"rgba("+((G&16711680)>>16)+","+((G&65280)>>8)+","+(G&255)+","+K+")"};F.prototype.b2DebugDraw=function(){this.m_drawFlags=0};F.prototype.SetFlags=function(G){if(G===undefined)G=0;this.m_drawFlags=
+G};F.prototype.GetFlags=function(){return this.m_drawFlags};F.prototype.AppendFlags=function(G){if(G===undefined)G=0;this.m_drawFlags|=G};F.prototype.ClearFlags=function(G){if(G===undefined)G=0;this.m_drawFlags&=~G};F.prototype.SetSprite=function(G){this.m_ctx=G};F.prototype.GetSprite=function(){return this.m_ctx};F.prototype.SetDrawScale=function(G){if(G===undefined)G=0;this.m_drawScale=G};F.prototype.GetDrawScale=function(){return this.m_drawScale};F.prototype.SetLineThickness=function(G){if(G===
+undefined)G=0;this.m_lineThickness=G;this.m_ctx.strokeWidth=G};F.prototype.GetLineThickness=function(){return this.m_lineThickness};F.prototype.SetAlpha=function(G){if(G===undefined)G=0;this.m_alpha=G};F.prototype.GetAlpha=function(){return this.m_alpha};F.prototype.SetFillAlpha=function(G){if(G===undefined)G=0;this.m_fillAlpha=G};F.prototype.GetFillAlpha=function(){return this.m_fillAlpha};F.prototype.SetXFormScale=function(G){if(G===undefined)G=0;this.m_xformScale=G};F.prototype.GetXFormScale=function(){return this.m_xformScale};
+F.prototype.DrawPolygon=function(G,K,y){if(K){var w=this.m_ctx,A=this.m_drawScale;w.beginPath();w.strokeStyle=this._color(y.color,this.m_alpha);w.moveTo(G[0].x*A,G[0].y*A);for(y=1;y<K;y++)w.lineTo(G[y].x*A,G[y].y*A);w.lineTo(G[0].x*A,G[0].y*A);w.closePath();w.stroke()}};F.prototype.DrawSolidPolygon=function(G,K,y){if(K){var w=this.m_ctx,A=this.m_drawScale;w.beginPath();w.strokeStyle=this._color(y.color,this.m_alpha);w.fillStyle=this._color(y.color,this.m_fillAlpha);w.moveTo(G[0].x*A,G[0].y*A);for(y=
+1;y<K;y++)w.lineTo(G[y].x*A,G[y].y*A);w.lineTo(G[0].x*A,G[0].y*A);w.closePath();w.fill();w.stroke()}};F.prototype.DrawCircle=function(G,K,y){if(K){var w=this.m_ctx,A=this.m_drawScale;w.beginPath();w.strokeStyle=this._color(y.color,this.m_alpha);w.arc(G.x*A,G.y*A,K*A,0,Math.PI*2,true);w.closePath();w.stroke()}};F.prototype.DrawSolidCircle=function(G,K,y,w){if(K){var A=this.m_ctx,U=this.m_drawScale,p=G.x*U,B=G.y*U;A.moveTo(0,0);A.beginPath();A.strokeStyle=this._color(w.color,this.m_alpha);A.fillStyle=
+this._color(w.color,this.m_fillAlpha);A.arc(p,B,K*U,0,Math.PI*2,true);A.moveTo(p,B);A.lineTo((G.x+y.x*K)*U,(G.y+y.y*K)*U);A.closePath();A.fill();A.stroke()}};F.prototype.DrawSegment=function(G,K,y){var w=this.m_ctx,A=this.m_drawScale;w.strokeStyle=this._color(y.color,this.m_alpha);w.beginPath();w.moveTo(G.x*A,G.y*A);w.lineTo(K.x*A,K.y*A);w.closePath();w.stroke()};F.prototype.DrawTransform=function(G){var K=this.m_ctx,y=this.m_drawScale;K.beginPath();K.strokeStyle=this._color(16711680,this.m_alpha);
+K.moveTo(G.position.x*y,G.position.y*y);K.lineTo((G.position.x+this.m_xformScale*G.R.col1.x)*y,(G.position.y+this.m_xformScale*G.R.col1.y)*y);K.strokeStyle=this._color(65280,this.m_alpha);K.moveTo(G.position.x*y,G.position.y*y);K.lineTo((G.position.x+this.m_xformScale*G.R.col2.x)*y,(G.position.y+this.m_xformScale*G.R.col2.y)*y);K.closePath();K.stroke()}})();var i;for(i=0;i<Box2D.postDefs.length;++i)Box2D.postDefs[i]();delete Box2D.postDefs;

public/_define.styl

@@ -0,0 +1,105 @@
+helv()
+  font-family: "Helvetica Neue", Arial, Helvetica, sans-serif
+
+shadow($color, $x, $y, $blur)
+  -webkit-box-shadow: color $x $y $blur
+  -moz-box-shadow: $color $x $y $blur
+  box-shadow: $color $x $y $blur
+
+innerShadow($color, $x, $y, $blur)
+  box-shadow: inset $color $x $y $blurpx
+  -moz-box-shadow: inset $color $x $y $blurpx
+  -webkit-box-shadow: inset $color $x $y $blur
+
+gradient($top, $bottom)
+  background-image: $top
+  background-image: -moz-linear-gradient(top, $top, $bottom)
+  background-image: -webkit-gradient(linear,left top,left bottom,color-stop(0, $top),color-stop(1, $bottom))
+
+radial($inner, $outer)
+  background: $inner
+  background-image: -webkit-radial-gradient(center center, circle cover, $inner, $outer)
+  background-image: -moz-radial-gradient(center center, circle cover, $inner, $outer)
+  background-image: -ms-radial-gradient(center center, circle cover, $inner, $outer)
+  background-image: -o-radial-gradient(center center, circle cover, $inner, $outer)
+  background-image: radial-gradient(center center, circle cover, $inner, $outer)
+
+roundall($round)
+  -moz-border-radius: $round
+  -webkit-border-radius: $round
+  -khtml-border-radius: $round
+  -o-border-radius: $round
+  -border-radius: $round
+  border-radius: $round
+
+round($roundtl, $roundtr, $roundbr, $roundbl)
+  -webkit-border-top-left-radius: $roundtl
+  -webkit-border-top-right-radius: $roundtr
+  -webkit-border-bottom-left-radius: $roundbl
+  -webkit-border-bottom-right-radius: $roundbr
+  -moz-border-radius-topleft: $roundtl
+  -moz-border-radius-topright: $roundtr
+  -moz-border-radius-bottomleft: $roundbl
+  -moz-border-radius-bottomright: $roundbr
+  -border-top-left-radius: $roundtl
+  -border-top-right-radius: $roundtr
+  -border-bottom-left-radius: $roundbl
+  -border-bottom-right-radius: $roundbr
+  border-top-left-radius: $roundtl
+  border-top-right-radius: $roundtr
+  border-bottom-left-radius: $roundbl
+  border-bottom-right-radius: $roundbr
+
+textShadow($color, $x, $y, $blur)
+  text-shadow: $color $x $y $blur
+
+noselect()
+  -webkit-touch-callout: none
+  -webkit-user-select: none
+  -khtml-user-select: none
+  -moz-user-select: none
+  -ms-user-select: none
+  user-select: none
+
+turn($deg)
+  -moz-transform: rotate($deg)
+  -webkit-transform: rotate($deg)
+  -o-transform: rotate($deg)
+  transform: rotate($deg)
+
+transform($param)
+  -webkit-transform: $param
+  -moz-transform: $param
+  -ms-transform: $param
+  transform: $param
+
+transition($attr, $dur, $timing, $delay)
+  -webkit-transition: $attr $dur $timing $delay
+  -moz-transition: $attr $dur $timing $delay
+  -o-transition: $attr $dur $timing $delay
+  transition: $attr $dur $timing $delay
+
+flip-horizontal()
+  -moz-transform: scaleX(-1)
+  -webkit-transform: scaleX(-1)
+  -o-transform: scaleX(-1)
+  transform: scaleX(-1)
+  -ms-filter: fliph
+  filter: fliph
+
+flip-vertical()
+  -moz-transform: scaleY(-1)
+  -webkit-transform: scaleY(-1)
+  -o-transform: scaleY(-1)
+  transform: scaleY(-1)
+  -ms-filter: flipv
+  filter: flipv
+
+colorDot($color)
+  display: block
+  height: 10px
+  width: 10px
+  gradient: $color + #777 $color + #000
+  border-radius: 25px
+  border-bottom: 1px solid rgba(0,0,0,1)
+  border-top: 1px solid rgba(255,255,255,.9)

public/_reset.css

@@ -0,0 +1,247 @@
+article,
+aside,
+details,
+figcaption,
+figure,
+footer,
+header,
+hgroup,
+nav,
+section {
+  display: block;
+}
+audio,
+canvas,
+video {
+  display: inline-block;
+  *display: inline;
+  *zoom: 1;
+}
+audio:not([controls]) {
+  display: none;
+}
+[hidden] {
+  display: none;
+}
+html {
+  font-size: 100%;
+  -webkit-text-size-adjust: 100%;
+  -ms-text-size-adjust: 100%;
+}
+html,
+button,
+input,
+select,
+textarea {
+  font-family: sans-serif;
+  color: #222;
+}
+body {
+  margin: 0;
+  font-size: 1em;
+  line-height: 1.4;
+}
+a {
+  color: #00e;
+}
+a:visited {
+  color: #551a8b;
+}
+a:hover {
+  color: #06e;
+}
+a:focus {
+  outline: thin dotted;
+}
+a:hover,
+a:active {
+  outline: 0;
+}
+abbr[title] {
+  border-bottom: 1px dotted;
+}
+b,
+strong {
+  font-weight: bold;
+}
+blockquote {
+  margin: 1em 40px;
+}
+dfn {
+  font-style: italic;
+}
+hr {
+  display: block;
+  height: 1px;
+  border: 0;
+  border-top: 1px solid #ccc;
+  margin: 1em 0;
+  padding: 0;
+}
+ins {
+  background: #ff9;
+  color: #000;
+  text-decoration: none;
+}
+mark {
+  background: #ff0;
+  color: #000;
+  font-style: italic;
+  font-weight: bold;
+}
+pre,
+code,
+kbd,
+samp {
+  font-family: monospace, serif;
+  _font-family: 'courier new', monospace;
+  font-size: 1em;
+}
+pre {
+  white-space: pre-wrap;
+  word-wrap: break-word;
+}
+q {
+  quotes: none;
+}
+q:before,
+q:after {
+  content: none;
+}
+small {
+  font-size: 85%;
+}
+sub,
+sup {
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+sup {
+  top: -0.5em;
+}
+sub {
+  bottom: -0.25em;
+}
+ul,
+ol {
+  margin: 1em 0;
+  padding: 0 0 0 40px;
+}
+dd {
+  margin: 0 0 0 40px;
+}
+nav ul,
+nav ol {
+  list-style: none;
+  list-style-image: none;
+  margin: 0;
+  padding: 0;
+}
+img {
+  border: 0;
+  -ms-interpolation-mode: bicubic;
+  vertical-align: middle;
+}
+svg:not(:root) {
+  overflow: hidden;
+}
+figure {
+  margin: 0;
+}
+form {
+  margin: 0;
+}
+fieldset {
+  border: 0;
+  margin: 0;
+  padding: 0;
+}
+label {
+  cursor: pointer;
+}
+legend {
+  border: 0;
+  *margin-left: -7px;
+  padding: 0;
+  white-space: normal;
+}
+button,
+input,
+select,
+textarea {
+  font-size: 100%;
+  margin: 0;
+  vertical-align: baseline;
+  *vertical-align: middle;
+}
+button,
+input {
+  line-height: normal;
+}
+button,
+input[type="button"],
+input[type="reset"],
+input[type="submit"] {
+  cursor: pointer;
+  -webkit-appearance: button;
+  *overflow: visible;
+}
+button[disabled],
+input[disabled] {
+  cursor: default;
+}
+input[type="checkbox"],
+input[type="radio"] {
+  box-sizing: border-box;
+  padding: 0;
+  *width: 13px;
+  *height: 13px;
+}
+input[type="search"] {
+  -webkit-appearance: textfield;
+  -moz-box-sizing: content-box;
+  -webkit-box-sizing: content-box;
+  box-sizing: content-box;
+}
+input[type="search"]::-webkit-search-decoration,
+input[type="search"]::-webkit-search-cancel-button {
+  -webkit-appearance: none;
+}
+button::-moz-focus-inner,
+input::-moz-focus-inner {
+  border: 0;
+  padding: 0;
+}
+textarea {
+  overflow: auto;
+  vertical-align: top;
+  resize: vertical;
+}
+input:valid,
+textarea:valid,
+input:invalid,
+textarea:invalid {
+  background-color: #f0dddd;
+}
+table {
+  border-collapse: collapse;
+  border-spacing: 0;
+}
+td {
+  vertical-align: top;
+}
+.clearfix:before,
+.clearfix:after {
+  content: "\0020";
+  display: block;
+  height: 0;
+  visibility: hidden;
+}
+.clearfix:after {
+  clear: both;
+}
+.clearfix {
+  zoom: 1;
+}

public/_reset.styl

@@ -0,0 +1,210 @@
+article, aside, details, figcaption, figure, footer, header, hgroup, nav, section
+  display: block
+
+audio, canvas, video
+  display: inline-block
+  *display: inline
+  *zoom: 1
+
+audio:not([controls])
+  display: none
+
+[hidden]
+  display: none
+
+html
+  font-size: 100%
+  -webkit-text-size-adjust: 100%
+  -ms-text-size-adjust: 100%
+
+html, button, input, select, textarea
+  font-family: sans-serif
+  color: #222
+
+body
+  margin: 0
+  font-size: 1em
+  line-height: 1.4
+
+a
+  color: #00e
+
+a:visited
+  color: #551a8b
+
+a:hover
+  color: #06e
+
+a:focus
+  outline: thin dotted
+
+a:hover, a:active
+  outline: 0
+
+abbr[title]
+  border-bottom: 1px dotted
+
+b, strong
+  font-weight: bold
+
+blockquote
+  margin: 1em 40px
+
+dfn
+  font-style: italic
+
+hr
+  display: block
+  height: 1px
+  border: 0
+  border-top: 1px solid #ccc
+  margin: 1em 0
+  padding: 0
+
+ins
+  background: #ff9
+  color: #000
+  text-decoration: none
+
+mark
+  background: #ff0
+  color: #000
+  font-style: italic
+  font-weight: bold
+
+pre, code, kbd, samp
+  font-family: monospace, serif
+  _font-family: 'courier new', monospace
+  font-size: 1em
+
+pre
+  white-space: pre-wrap
+  word-wrap: break-word
+
+q
+  quotes: none
+
+q:before, q:after
+  content: none
+
+small
+  font-size: 85%
+
+sub, sup
+  font-size: 75%
+  line-height: 0
+  position: relative
+  vertical-align: baseline
+
+sup
+  top: -0.5em
+
+sub
+  bottom: -0.25em
+
+ul, ol
+  margin: 1em 0
+  padding: 0 0 0 40px
+
+dd
+  margin: 0 0 0 40px
+
+nav ul, nav ol
+  list-style: none
+  list-style-image: none
+  margin: 0
+  padding: 0
+
+img
+  border: 0
+  -ms-interpolation-mode: bicubic
+  vertical-align: middle
+
+svg:not(:root)
+  overflow: hidden
+
+figure
+  margin: 0
+
+form
+  margin: 0
+
+fieldset
+  border: 0
+  margin: 0
+  padding: 0
+
+label
+  cursor: pointer
+
+legend
+  border: 0
+  *margin-left: -7px
+  padding: 0
+  white-space: normal
+
+button, input, select, textarea
+  font-size: 100%
+  margin: 0
+  vertical-align: baseline
+  *vertical-align: middle
+
+button, input
+  line-height: normal
+
+button, input[type="button"], input[type="reset"], input[type="submit"]
+  cursor: pointer
+  -webkit-appearance: button
+  *overflow: visible
+
+button[disabled], input[disabled]
+  cursor: default
+
+input[type="checkbox"], input[type="radio"]
+  box-sizing: border-box
+  padding: 0
+  *width: 13px
+  *height: 13px
+
+input[type="search"]
+  -webkit-appearance: textfield
+  -moz-box-sizing: content-box
+  -webkit-box-sizing: content-box
+  box-sizing: content-box
+
+input[type="search"]::-webkit-search-decoration, input[type="search"]::-webkit-search-cancel-button
+  -webkit-appearance: none
+
+button::-moz-focus-inner, input::-moz-focus-inner
+  border: 0
+  padding: 0
+
+textarea
+  overflow: auto
+  vertical-align: top
+  resize: vertical
+
+input:valid, textarea:valid
+
+input:invalid, textarea:invalid
+  background-color: #f0dddd
+
+table
+  border-collapse: collapse
+  border-spacing: 0
+
+td
+  vertical-align: top
+
+
+.clearfix:before, .clearfix:after
+  content: "\0020"
+  display: block
+  height: 0
+  visibility: hidden
+
+.clearfix:after
+  clear: both
+
+.clearfix
+  zoom: 1

public/awesome-andbang-ad.js

@@ -0,0 +1,16 @@
+// picks a random thing from this list (html is fine) and shows it.
+function showAd() {
+    var messages = [
+        'Have more fun, get more done with your team. And Bang is currently in free private beta.',
+        'And Bang is simple and powerful tasks and chat for teams. Join the free private beta now.',
+        'Create a culture of shipping, one rocket at a time. And Bang is free while in private beta.',
+        'An API for what\'s important right now. And Bang is free while in private beta.'
+    ],
+    message = messages[Math.floor(Math.random()*messages.length)];
+
+    $('#ad').html(message);
+
+    setTimeout(showAd, 30000);
+}
+
+showAd();

public/box.js

@@ -0,0 +1,13 @@
+module.exports =  {
+    Vec2: Box2D.Common.Math.b2Vec2,
+    Math: Box2D.Common.Math.b2Math,
+    BodyDef: Box2D.Dynamics.b2BodyDef,
+    Body: Box2D.Dynamics.b2Body,
+    FixtureDef: Box2D.Dynamics.b2FixtureDef,
+    Fixture: Box2D.Dynamics.b2Fixture,
+    World: Box2D.Dynamics.b2World,
+    MassData: Box2D.Collision.Shapes.b2MassData,
+    PolygonShape: Box2D.Collision.Shapes.b2PolygonShape,
+    CircleShape: Box2D.Collision.Shapes.b2CircleShape,
+    DebugDraw: Box2D.Dynamics.b2DebugDraw
+};

public/fluidgrid.js

@@ -0,0 +1,229 @@
+(function () {
+// reference to our currently focused element
+var focusedEl;
+
+function getFluidGridFunction(selector) {
+    return function (focus) {
+        reOrganize(selector, focus);
+    };
+}
+
+function biggestBox(container, aspectRatio) {
+    var aspectRatio = aspectRatio || (3 / 4),
+        height = (container.width * aspectRatio),
+        res = {};
+
+    if (height > container.height) {
+        return {
+            height: container.height,
+            width: container.height / aspectRatio
+        };
+    } else {
+        return {
+            width: container.width,
+            height: container.width * aspectRatio
+        };
+    }
+}
+
+function reOrganize(selector, focus) {
+    var floor = Math.floor,
+        elements = $(selector),
+        howMany = elements.length,
+        howManyNonFocused = function () {
+            var hasFocused = !!elements.find('.focused').length;
+            if (hasFocused && howMany > 1) {
+                return howMany - 1;
+            } else if (hasFocused && howMany === 1) {
+                return 1;
+            } else {
+                return howMany;
+            }
+        }(),
+
+        totalAvailableWidth = window.innerWidth,
+        totalAvailableHeight = window.innerHeight - 140,
+
+        availableWidth = totalAvailableWidth,
+        availableHeight = totalAvailableHeight,
+
+        container = {
+            width: availableWidth,
+            height: availableHeight
+        },
+        columnPadding = 15,
+        minimumWidth = 290,
+        aspectRatio = 3 / 4,
+
+        numberOfColumns,
+        numberOfRows,
+
+        numberOfPaddingColumns,
+        numberOfPaddingRows,
+
+        itemDimensions,
+        totalWidth,
+
+        videoWidth,
+        leftMargin,
+
+        videoHeight,
+        usedHeight,
+        topMargin,
+
+        // do we have one selected?
+        // this is because having a single
+        // focused element is not treated
+        // differently, but we don't want to
+        // lose that reference.
+        haveFocusedEl;
+
+
+    // if we passed in a string here (could be "none")
+    // then we want to either set or clear our current
+    // focused element.
+    if (focus) focusedEl = $(focus)[0];
+
+    // make sure our cached focused element is still
+    // attached.
+    if (focusedEl && !$(focusedEl).parent().length) focusedEl = undefined;
+
+    // figure out if we should consider us as having any
+    // special focused elements
+    haveFocusedEl = focusedEl && howManyNonFocused > 1;
+
+    elements.height(availableHeight);
+
+    // how we want the to stack at different numbers
+    if (haveFocusedEl) {
+        numberOfColumns = howManyNonFocused - 1;
+        numberOfRows = 1;
+        availableHeight = totalAvailableHeight * .2;
+    } else if (howManyNonFocused === 0) {
+        return;
+    } else if (howManyNonFocused === 1) {
+        numberOfColumns = 1;
+        numberOfRows = 1;
+    } else if (howManyNonFocused === 2) {
+        if (availableWidth > availableHeight) {
+            numberOfColumns = 2;
+            numberOfRows = 1;
+        } else {
+            numberOfColumns = 1;
+            numberOfRows = 2;
+        }
+    } else if (howManyNonFocused === 3) {
+        if (availableWidth > availableHeight) {
+            numberOfColumns = 3;
+            numberOfRows = 1;
+        } else {
+            numberOfColumns = 1;
+            numberOfRows = 3;
+        }
+    } else if (howManyNonFocused === 4) {
+        numberOfColumns = 2;
+        numberOfRows = 2;
+    } else if (howManyNonFocused === 5) {
+        numberOfColumns = 3;
+        numberOfRows = 2;
+    } else if (howManyNonFocused === 6) {
+        if (availableWidth > availableHeight) {
+            numberOfColumns = 3;
+            numberOfRows = 2;
+        } else {
+            numberOfColumns = 2;
+            numberOfRows = 3;
+        }
+    }
+
+    itemDimensions = biggestBox({
+        width: availableWidth / numberOfColumns,
+        height: availableHeight / numberOfRows
+    });
+
+    numberOfPaddingColumns = numberOfColumns - 1;
+    numberOfPaddingRows = numberOfRows - 1;
+
+    totalWidth = itemDimensions.width * numberOfColumns;
+
+    videoWidth = function () {
+        var totalWidthLessPadding = totalWidth - (columnPadding * numberOfPaddingColumns);
+        return totalWidthLessPadding / numberOfColumns;
+    }();
+
+    leftMargin = (availableWidth - totalWidth) / 2;
+
+    videoHeight = itemDimensions.height - ((numberOfRows > 1) ? (columnPadding / numberOfRows) : 0);
+    usedHeight = (numberOfRows * videoHeight);
+    topMargin = (availableHeight - usedHeight) / 2;
+
+    if (haveFocusedEl) {
+        elements = elements.not('.focused');
+    }
+
+    elements.each(function (index) {
+        var order = index,
+            row = floor(order / numberOfColumns),
+            column = order % numberOfColumns,
+            intensity = 12,
+            rotation = function () {
+                if (numberOfColumns === 3) {
+                    if (column === 0) {
+                        return 1;
+                    } else if (column === 1) {
+                        return 0;
+                    } else if (column === 2) {
+                        return -1
+                    }
+                } else if (numberOfColumns === 2) {
+                    intensity = 5;
+                    return column == 1 ? -1 : 1
+                } else if (numberOfColumns === 1) {
+                    return 0;
+                }
+            }(),
+            transformation = 'rotateY(' + (rotation * intensity) + 'deg)';
+
+        if (rotation === 0) {
+            transformation += ' scale(.98)';
+        }
+
+        var calculatedTop;
+        if (haveFocusedEl) {
+            calculatedTop = (totalAvailableHeight * .8) + topMargin + 'px';
+        } else {
+            calculatedTop = (row * itemDimensions.height) + topMargin + 'px';
+        }
+
+        $(this).css({
+            //transform: transformation,
+            top: calculatedTop,
+            left: (column * itemDimensions.width) + leftMargin + 'px',
+            width: videoWidth + 'px',
+            height: videoHeight + 'px',
+            position: 'absolute'
+        });
+    });
+
+    if (haveFocusedEl) {
+        var focusSize = biggestBox({
+            height: (totalAvailableHeight * .8),
+            width: totalAvailableWidth
+        }, focusedEl.videoHeight / focusedEl.videoWidth);
+
+        $(focusedEl).css({
+            top: 0,
+            height: focusSize.height - topMargin,
+            width: focusSize.width,
+            left: (totalAvailableWidth / 2) - (focusSize.width / 2)
+        });
+    }
+}
+
+if (typeof exports !== 'undefined') {
+    module.exports = getFluidGridFunction;
+} else {
+    window.getFluidGridFunction = getFluidGridFunction;
+}
+
+})();

public/game.js

@@ -0,0 +1,243 @@
+
+window.requestAnimFrame = (function(){
+return  window.requestAnimationFrame       || 
+window.webkitRequestAnimationFrame || 
+window.mozRequestAnimationFrame    || 
+window.oRequestAnimationFrame      || 
+window.msRequestAnimationFrame     || 
+function( callback ){
+window.setTimeout(callback, 1000 / 60);
+};
+})();
+
+console.log(window.requestAnimFrame);
+
+var Rocket = require('./rocket');
+var particle = require('./particle');
+var box = require('./box');
+
+var b2Vec2 = Box2D.Common.Math.b2Vec2;
+var b2Math = Box2D.Common.Math.b2Math;
+var b2BodyDef = Box2D.Dynamics.b2BodyDef;
+var b2Body = Box2D.Dynamics.b2Body;
+var b2FixtureDef = Box2D.Dynamics.b2FixtureDef;
+var b2Fixture = Box2D.Dynamics.b2Fixture;
+var b2World = Box2D.Dynamics.b2World;
+var b2MassData = Box2D.Collision.Shapes.b2MassData;
+var b2PolygonShape = Box2D.Collision.Shapes.b2PolygonShape;
+var b2CircleShape = Box2D.Collision.Shapes.b2CircleShape;
+var b2DebugDraw = Box2D.Dynamics.b2DebugDraw;
+ 
+var Game = function() {
+    this.canvas = document.getElementById('viewport');
+    console.log(this.canvas.parentNode.clientWidth, this.canvas.parentNode.clientHeight);
+    this.canvas.width = this.canvas.parentNode.clientWidth;
+    this.canvas.height = this.canvas.parentNode.clientHeight;
+    this.ctx = this.canvas.getContext('2d');
+    this.world = new b2World(
+       //new b2Vec2(0, 50), //gravity
+       new b2Vec2(0,50),
+       false  //allow sleep
+    );
+
+    this.scale = 10;
+
+    this.smoke = new Image;
+    this.smoke.src = 'cloud.png';
+
+    this.rocket = new Rocket(this, this.canvas.width / 2 / this.scale, (this.canvas.height - 20) / this.scale, .01);
+
+    this.last_update = Date.now();
+
+    this.shraps = [];
+
+    this.keys = {};
+    document.addEventListener('keydown', function(e) {
+        //console.log(e.keyCode);
+        this.keys[e.keyCode] = true;
+    }.bind(this));
+
+    document.addEventListener('keyup', function(e) {
+        this.keys[e.keyCode] = false;
+    }.bind(this));
+
+    this.update();
+};
+
+(function() {
+    var avg = 0;
+    var avgt = 0;
+    var average = 0;
+    this.update = function() {
+        var now = Date.now();
+        var dt = (now - this.last_update);
+        avg += dt;
+        avgt++;
+        if (avgt === 20) {
+            average = (1000/(avg/20)).toFixed(2);
+            avgt = 0;
+            avg = 0;
+        }
+
+
+
+        /*
+        var gra = Math.atan2(this.rocket.y - 400, -(this.rocket.x - 400)) + Math.PI/2;
+        if(this.rocket.active) {
+            this.rocket.body.ApplyImpulse(new b2Vec2(Math.sin(gra) * (dt/5), Math.cos(gra) * (dt/5)), this.rocket.body.GetWorldCenter());
+        }
+        */
+
+        this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
+        this.ctx.globalAlpha = 1.0;
+        //ctx.fillStyle = 'white'
+        //ctx.fillRect(0, 0, canvas.width, canvas.height);
+        this.ctx.fillStyle = 'gray'
+        this.ctx.fillRect(0,this.canvas.height - 20, this.canvas.width, 20);
+        //this.world.DrawDebugData();
+        this.ctx.globalAlpha = 1.0;
+        this.ctx.fillStyle = 'black';
+        this.ctx.fillText("FPS: " + (average), 10, this.canvas.height - 30);
+        this.rocket.animate(dt);
+        for(var sidx in this.shraps) {
+            this.shraps[sidx].animate(dt, now);
+        }
+
+        dt = dt/1000;
+        for(var pidx in particle.particles) {
+            particle.particles[pidx].animate(dt, now);
+        }
+        this.world.Step(
+                dt
+               //frame-rate
+            ,  10       //velocity iterations
+            ,  10       //position iterations
+        );
+        //this.world.ClearForces();
+        requestAnimFrame(this.update.bind(this));
+        this.last_update = now;
+    };
+
+    this.makeBody = function (x, y, points, p) {
+        var pidx = 0;
+        while(pidx < points.length) {
+            points[pidx] = new box.Vec2(points[pidx][0], points[pidx][1]);
+            pidx++;
+        }
+        var fixDef = new box.FixtureDef;
+        fixDef.density = 1.0;
+        fixDef.friction = .8;
+        fixDef.restitution = 0.2;
+        fixDef.shape = new box.PolygonShape;
+        fixDef.shape.SetAsArray(points, points.length);
+        fixDef.par = p;
+
+        var bodyDef = new box.BodyDef;
+        if(p) {
+            bodyDef.userData = p;
+        }
+        bodyDef.type = box.Body.b2_dynamicBody;
+        bodyDef.position.x = x;
+        bodyDef.position.y = y;
+
+        var body = this.world.CreateBody(bodyDef);
+        var fixt = body.CreateFixture(fixDef);
+
+        return body;
+    }
+
+}).call(Game.prototype);
+
+
+var game = new Game;
+
+
+/*
+var debugDraw = new b2DebugDraw();
+debugDraw.SetSprite(game.ctx);
+debugDraw.SetDrawScale(game.scale);
+debugDraw.SetFillAlpha(0.3);
+debugDraw.SetLineThickness(1.0);
+debugDraw.SetFlags(b2DebugDraw.e_shapeBit | b2DebugDraw.e_jointBit);
+game.world.SetDebugDraw(debugDraw);
+*/
+
+ 
+var fixDef = new b2FixtureDef;
+fixDef.density = 1.0;
+fixDef.friction = .8;
+fixDef.restitution = 0.2;
+
+
+var bodyDef = new b2BodyDef;
+//create ground
+bodyDef.type = b2Body.b2_staticBody;
+bodyDef.position.x = game.canvas.width / 2 / game.scale;
+bodyDef.position.y = game.canvas.height / game.scale;
+bodyDef.userData = "ground";
+//fixDef.shape = new b2CircleShape(20);
+fixDef.shape = new b2PolygonShape
+fixDef.shape.SetAsBox(game.canvas.width / 2 / game.scale, 2);
+game.world.CreateBody(bodyDef).CreateFixture(fixDef);
+
+flame = new Image();
+flame.src = 'flame.gif';
+fireball = new Image();
+fireball.src = 'fireball.png';
+shrap = new Image();
+shrap.src = 'shrapenel.png';
+
+var shraps = [];
+
+
+var last_update = Date.now();
+var last_particle = Date.now();
+
+var mouse_x = 0;
+var mouse_y = 0;
+
+
+
+function normalizeAngle(angle) {
+    if(angle == 0) { return 0; }
+    if(angle < 0 || angle > Math.PI * 2) return Math.abs((Math.PI * 2) - Math.abs(angle));
+}
+
+
+var contactListener = new Box2D.Dynamics.b2ContactListener;
+contactListener.PreSolve = function(contact, manifold) {
+    var a = contact.GetFixtureA(); 
+    var ab = a.GetBody();
+    var b = contact.GetFixtureB(); 
+    var bb = b.GetBody();
+    var au = ab.GetUserData();
+    var bu = bb.GetUserData();
+    if((au instanceof Rocket && bu == 'ground') || au == 'ground' && bu instanceof Rocket) { 
+        var av = ab.GetLinearVelocity();
+        var bv = bb.GetLinearVelocity();
+        var f = b2Math.Distance(bv, av);
+        var r = null;
+        if(au instanceof Rocket) r = au;
+        if(bu instanceof Rocket) r = bu;
+        if(r && f > 25) {
+            setTimeout(
+            r.explode.bind(r), 0);
+            /*
+            au.explode();
+            bu.explode();
+            */
+
+        } else if (r.body) {
+            var a = r.body.GetAngle();
+            a = Box2D.Common.Math.b2Mat22.FromAngle(a);
+            a = Math.abs(Math.atan2(a.col1.y, a.col1.x));
+            if(a > 1.5) {
+            setTimeout(
+            r.explode.bind(r), 0);
+            }
+        }
+    }
+    // rocket.explode();
+       //do some stuff 
+};
+game.world.SetContactListener(contactListener);

public/jquery.slidingmessage.js

@@ -0,0 +1,44 @@
+(function($) {
+    $.showMessage = function(message, options){
+        // defaults
+        var settings = jQuery.extend({
+                id: 'sliding_message_box',
+                position: 'bottom',
+                size: '90',
+                backgroundColor: 'rgb(143, 177, 240)',
+                delay: 1500,
+                speed: 500,
+                fontSize: '30px'
+            }, options),
+            el = $('#' + settings.id);
+
+        // generate message div if it doesn't exist
+        if (el.length == 0) {
+            el = $('<div></div>').attr('id', settings.id);
+
+            el.css({
+              '-moz-transition': 'bottom ' + settings.speed + 'ms',
+              '-webkit-transition': 'bottom ' + settings.speed + 'ms',
+              'bottom': '-' + settings.size + 'px',
+              'z-index': '999',
+              'background-color': settings.backgroundColor,
+              'text-align': 'center',
+              'position': 'fixed',
+              'left': '0',
+              'width': '100%',
+              'line-height': settings.size + 'px',
+              'font-size': settings.fontSize,
+            });
+
+            $('body').append(el);
+        }
+
+        setTimeout(function () {
+            el.html(message);
+            el.css('bottom', 0);
+            setTimeout(function () {
+                el.css('bottom', '-' + settings.size + 'px');
+            }, settings.delay);
+        }, 10);
+    }
+})(jQuery);

public/metrics.js

@@ -0,0 +1,9 @@
+// some metrics
+if (location.hostname === 'conversat.io') {
+    (function(e,b){if(!b.__SV){var a,f,i,g;window.mixpanel=b;a=e.createElement("script");a.type="text/javascript";a.async=!0;a.src=("https:"===e.location.protocol?"https:":"http:")+'//cdn.mxpnl.com/libs/mixpanel-2.2.min.js';f=e.getElementsByTagName("script")[0];f.parentNode.insertBefore(a,f);b._i=[];b.init=function(a,e,d){function f(b,h){var a=h.split(".");2==a.length&&(b=b[a[0]],h=a[1]);b[h]=function(){b.push([h].concat(Array.prototype.slice.call(arguments,0)))}}var c=b;"undefined"!== typeof d?c=b[d]=[]:d="mixpanel";c.people=c.people||[];c.toString=function(b){var a="mixpanel";"mixpanel"!==d&&(a+="."+d);b||(a+=" (stub)");return a};c.people.toString=function(){return c.toString(1)+".people (stub)"};i="disable track track_pageview track_links track_forms register register_once alias unregister identify name_tag set_config people.set people.increment people.append people.track_charge people.clear_charges people.delete_user".split(" ");for(g=0;g<i.length;g++)f(c,i[g]);b._i.push([a,e,d])};b.__SV=1.2}})(document,window.mixpanel||[]);
+    mixpanel.init("4f9fd79a6827838ce81d84cd70d535cd");
+    // a handler to track # of videos connected
+    webrtc.on('videoAdded', function () {
+        mixpanel.track('videoConnected');
+    });
+}

public/out.js

@@ -0,0 +1,964 @@
+(function(){var require = function (file, cwd) {
+    var resolved = require.resolve(file, cwd || '/');
+    var mod = require.modules[resolved];
+    if (!mod) throw new Error(
+        'Failed to resolve module ' + file + ', tried ' + resolved
+    );
+    var cached = require.cache[resolved];
+    var res = cached? cached.exports : mod();
+    return res;
+};
+
+require.paths = [];
+require.modules = {};
+require.cache = {};
+require.extensions = [".js",".coffee",".json"];
+
+require._core = {
+    'assert': true,
+    'events': true,
+    'fs': true,
+    'path': true,
+    'vm': true
+};
+
+require.resolve = (function () {
+    return function (x, cwd) {
+        if (!cwd) cwd = '/';
+        
+        if (require._core[x]) return x;
+        var path = require.modules.path();
+        cwd = path.resolve('/', cwd);
+        var y = cwd || '/';
+        
+        if (x.match(/^(?:\.\.?\/|\/)/)) {
+            var m = loadAsFileSync(path.resolve(y, x))
+                || loadAsDirectorySync(path.resolve(y, x));
+            if (m) return m;
+        }
+        
+        var n = loadNodeModulesSync(x, y);
+        if (n) return n;
+        
+        throw new Error("Cannot find module '" + x + "'");
+        
+        function loadAsFileSync (x) {
+            x = path.normalize(x);
+            if (require.modules[x]) {
+                return x;
+            }
+            
+            for (var i = 0; i < require.extensions.length; i++) {
+                var ext = require.extensions[i];
+                if (require.modules[x + ext]) return x + ext;
+            }
+        }
+        
+        function loadAsDirectorySync (x) {
+            x = x.replace(/\/+$/, '');
+            var pkgfile = path.normalize(x + '/package.json');
+            if (require.modules[pkgfile]) {
+                var pkg = require.modules[pkgfile]();
+                var b = pkg.browserify;
+                if (typeof b === 'object' && b.main) {
+                    var m = loadAsFileSync(path.resolve(x, b.main));
+                    if (m) return m;
+                }
+                else if (typeof b === 'string') {
+                    var m = loadAsFileSync(path.resolve(x, b));
+                    if (m) return m;
+                }
+                else if (pkg.main) {
+                    var m = loadAsFileSync(path.resolve(x, pkg.main));
+                    if (m) return m;
+                }
+            }
+            
+            return loadAsFileSync(x + '/index');
+        }
+        
+        function loadNodeModulesSync (x, start) {
+            var dirs = nodeModulesPathsSync(start);
+            for (var i = 0; i < dirs.length; i++) {
+                var dir = dirs[i];
+                var m = loadAsFileSync(dir + '/' + x);
+                if (m) return m;
+                var n = loadAsDirectorySync(dir + '/' + x);
+                if (n) return n;
+            }
+            
+            var m = loadAsFileSync(x);
+            if (m) return m;
+        }
+        
+        function nodeModulesPathsSync (start) {
+            var parts;
+            if (start === '/') parts = [ '' ];
+            else parts = path.normalize(start).split('/');
+            
+            var dirs = [];
+            for (var i = parts.length - 1; i >= 0; i--) {
+                if (parts[i] === 'node_modules') continue;
+                var dir = parts.slice(0, i + 1).join('/') + '/node_modules';
+                dirs.push(dir);
+            }
+            
+            return dirs;
+        }
+    };
+})();
+
+require.alias = function (from, to) {
+    var path = require.modules.path();
+    var res = null;
+    try {
+        res = require.resolve(from + '/package.json', '/');
+    }
+    catch (err) {
+        res = require.resolve(from, '/');
+    }
+    var basedir = path.dirname(res);
+    
+    var keys = (Object.keys || function (obj) {
+        var res = [];
+        for (var key in obj) res.push(key);
+        return res;
+    })(require.modules);
+    
+    for (var i = 0; i < keys.length; i++) {
+        var key = keys[i];
+        if (key.slice(0, basedir.length + 1) === basedir + '/') {
+            var f = key.slice(basedir.length);
+            require.modules[to + f] = require.modules[basedir + f];
+        }
+        else if (key === basedir) {
+            require.modules[to] = require.modules[basedir];
+        }
+    }
+};
+
+(function () {
+    var process = {};
+    var global = typeof window !== 'undefined' ? window : {};
+    var definedProcess = false;
+    
+    require.define = function (filename, fn) {
+        if (!definedProcess && require.modules.__browserify_process) {
+            process = require.modules.__browserify_process();
+            definedProcess = true;
+        }
+        
+        var dirname = require._core[filename]
+            ? ''
+            : require.modules.path().dirname(filename)
+        ;
+        
+        var require_ = function (file) {
+            var requiredModule = require(file, dirname);
+            var cached = require.cache[require.resolve(file, dirname)];
+
+            if (cached && cached.parent === null) {
+                cached.parent = module_;
+            }
+
+            return requiredModule;
+        };
+        require_.resolve = function (name) {
+            return require.resolve(name, dirname);
+        };
+        require_.modules = require.modules;
+        require_.define = require.define;
+        require_.cache = require.cache;
+        var module_ = {
+            id : filename,
+            filename: filename,
+            exports : {},
+            loaded : false,
+            parent: null
+        };
+        
+        require.modules[filename] = function () {
+            require.cache[filename] = module_;
+            fn.call(
+                module_.exports,
+                require_,
+                module_,
+                module_.exports,
+                dirname,
+                filename,
+                process,
+                global
+            );
+            module_.loaded = true;
+            return module_.exports;
+        };
+    };
+})();
+
+
+require.define("path",function(require,module,exports,__dirname,__filename,process,global){function filter (xs, fn) {
+    var res = [];
+    for (var i = 0; i < xs.length; i++) {
+        if (fn(xs[i], i, xs)) res.push(xs[i]);
+    }
+    return res;
+}
+
+// resolves . and .. elements in a path array with directory names there
+// must be no slashes, empty elements, or device names (c:\) in the array
+// (so also no leading and trailing slashes - it does not distinguish
+// relative and absolute paths)
+function normalizeArray(parts, allowAboveRoot) {
+  // if the path tries to go above the root, `up` ends up > 0
+  var up = 0;
+  for (var i = parts.length; i >= 0; i--) {
+    var last = parts[i];
+    if (last == '.') {
+      parts.splice(i, 1);
+    } else if (last === '..') {
+      parts.splice(i, 1);
+      up++;
+    } else if (up) {
+      parts.splice(i, 1);
+      up--;
+    }
+  }
+
+  // if the path is allowed to go above the root, restore leading ..s
+  if (allowAboveRoot) {
+    for (; up--; up) {
+      parts.unshift('..');
+    }
+  }
+
+  return parts;
+}
+
+// Regex to split a filename into [*, dir, basename, ext]
+// posix version
+var splitPathRe = /^(.+\/(?!$)|\/)?((?:.+?)?(\.[^.]*)?)$/;
+
+// path.resolve([from ...], to)
+// posix version
+exports.resolve = function() {
+var resolvedPath = '',
+    resolvedAbsolute = false;
+
+for (var i = arguments.length; i >= -1 && !resolvedAbsolute; i--) {
+  var path = (i >= 0)
+      ? arguments[i]
+      : process.cwd();
+
+  // Skip empty and invalid entries
+  if (typeof path !== 'string' || !path) {
+    continue;
+  }
+
+  resolvedPath = path + '/' + resolvedPath;
+  resolvedAbsolute = path.charAt(0) === '/';
+}
+
+// At this point the path should be resolved to a full absolute path, but
+// handle relative paths to be safe (might happen when process.cwd() fails)
+
+// Normalize the path
+resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
+    return !!p;
+  }), !resolvedAbsolute).join('/');
+
+  return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
+};
+
+// path.normalize(path)
+// posix version
+exports.normalize = function(path) {
+var isAbsolute = path.charAt(0) === '/',
+    trailingSlash = path.slice(-1) === '/';
+
+// Normalize the path
+path = normalizeArray(filter(path.split('/'), function(p) {
+    return !!p;
+  }), !isAbsolute).join('/');
+
+  if (!path && !isAbsolute) {
+    path = '.';
+  }
+  if (path && trailingSlash) {
+    path += '/';
+  }
+  
+  return (isAbsolute ? '/' : '') + path;
+};
+
+
+// posix version
+exports.join = function() {
+  var paths = Array.prototype.slice.call(arguments, 0);
+  return exports.normalize(filter(paths, function(p, index) {
+    return p && typeof p === 'string';
+  }).join('/'));
+};
+
+
+exports.dirname = function(path) {
+  var dir = splitPathRe.exec(path)[1] || '';
+  var isWindows = false;
+  if (!dir) {
+    // No dirname
+    return '.';
+  } else if (dir.length === 1 ||
+      (isWindows && dir.length <= 3 && dir.charAt(1) === ':')) {
+    // It is just a slash or a drive letter with a slash
+    return dir;
+  } else {
+    // It is a full dirname, strip trailing slash
+    return dir.substring(0, dir.length - 1);
+  }
+};
+
+
+exports.basename = function(path, ext) {
+  var f = splitPathRe.exec(path)[2] || '';
+  // TODO: make this comparison case-insensitive on windows?
+  if (ext && f.substr(-1 * ext.length) === ext) {
+    f = f.substr(0, f.length - ext.length);
+  }
+  return f;
+};
+
+
+exports.extname = function(path) {
+  return splitPathRe.exec(path)[3] || '';
+};
+
+});
+
+require.define("__browserify_process",function(require,module,exports,__dirname,__filename,process,global){var process = module.exports = {};
+
+process.nextTick = (function () {
+    var canSetImmediate = typeof window !== 'undefined'
+        && window.setImmediate;
+    var canPost = typeof window !== 'undefined'
+        && window.postMessage && window.addEventListener
+    ;
+
+    if (canSetImmediate) {
+        return window.setImmediate;
+    }
+
+    if (canPost) {
+        var queue = [];
+        window.addEventListener('message', function (ev) {
+            if (ev.source === window && ev.data === 'browserify-tick') {
+                ev.stopPropagation();
+                if (queue.length > 0) {
+                    var fn = queue.shift();
+                    fn();
+                }
+            }
+        }, true);
+
+        return function nextTick(fn) {
+            queue.push(fn);
+            window.postMessage('browserify-tick', '*');
+        };
+    }
+
+    return function nextTick(fn) {
+        setTimeout(fn, 0);
+    };
+})();
+
+process.title = 'browser';
+process.browser = true;
+process.env = {};
+process.argv = [];
+
+process.binding = function (name) {
+    if (name === 'evals') return (require)('vm')
+    else throw new Error('No such module. (Possibly not yet loaded)')
+};
+
+(function () {
+    var cwd = '/';
+    var path;
+    process.cwd = function () { return cwd };
+    process.chdir = function (dir) {
+        if (!path) path = require('path');
+        cwd = path.resolve(dir, cwd);
+    };
+})();
+
+});
+
+require.define("/rocket.js",function(require,module,exports,__dirname,__filename,process,global){var box = require('./box');
+//var util = require('./utils');
+var particle = require('./particle');
+var Shrapnel = require('./shrapnel');
+
+var rimg = new Image();
+rimg.src = 'ship2.png';
+
+
+var Rocket = function(game, x, y, a) {
+    this.game = game;
+    this.x = x;
+    this.y = y;
+    this.a = a;
+    this.my = 0;
+    this.go = false;
+    this.start = Date.now();
+    this.body = this.game.makeBody(x, y, [[0,-2],[1.2,1.8],[-1.2,1.8]], this);
+    this.active = true;
+    this.last_particle = Date.now();
+    this.last_shot = Date.now();
+
+    this.explode = function() {
+        if(!this.active) { return; }
+        var pos = this.body.GetPosition();
+        var vel = this.body.GetLinearVelocity();
+        var idx = 0;
+        var a = Math.random() * Math.PI;
+        while(idx < 4) {
+            idx++;
+            var s = new Shrapnel(this.game, pos.x, pos.y, .01, true);
+            s.body.SetAngularVelocity(Math.random() * 50 - 25);
+            var af = Math.random() * 100 + 50;
+            s.body.SetLinearVelocity(this.body.GetLinearVelocity());
+
+            var f = new box.Vec2(Math.sin(a) * af, Math.cos(a) * af);
+            s.body.ApplyImpulse(f, pos);
+            this.game.shraps.push(s);
+            a += Math.PI/2;
+        }
+        var pidx = 0;
+        while (pidx < 10) {
+            var p = new particle.Particle(this.game, fireball);
+            p.reset(pos.x * this.game.scale, pos.y * this.game.scale, 
+                    vel.x + Math.random() * 50 -25 , vel.y + Math.random() * 50 - 25,
+
+                    1, 200 * Math.random(), 1, -.5,
+                    Math.random() * 360,
+                    Math.random() * 2- 1);
+            pidx++;
+        }
+        this.game.world.DestroyBody(this.body);
+        this.active = false;
+    }
+    this.animate = function(dt, now) {
+        var ctx = this.game.ctx;
+            var now = Date.now();
+            if(this.active == false && this.game.keys[82] == true) {
+                this.body = this.game.makeBody(40, 78, [[0,-2],[1.2,1.8],[-1.2,1.8]], this);
+                this.body.SetPosition(new box.Vec2(this.game.canvas.width / 2 / this.game.scale, (this.game.canvas.height - 20) / this.game.scale));
+                this.body.SetAngle(0);
+                this.body.SetAngularVelocity(0);
+                this.body.SetLinearVelocity(new box.Vec2(0, 0));
+                for(var s in this.game.shraps) {
+                    this.game.shraps[s].destroy();
+                }
+                this.game.shraps = [];
+
+                this.active = true;
+                console.log('reset');
+            }
+        if(this.active) {
+            if(this.game.keys[88] == true) {
+                this.explode();
+                return;
+    
+            }
+            var pos = this.body.GetPosition();
+            if(pos.x * this.game.scale > this.game.canvas.width) {
+                pos.x = 0;
+                this.body.SetPosition(pos);
+            } else if (pos.x < 0) {
+                pos.x = this.game.canvas.width / this.game.scale;
+                this.body.SetPosition(pos);
+            }
+            this.angle = this.body.GetAngle();
+            if(this.game.keys[32] == true) {
+                if(now - this.last_shot > 100) {
+                    var pos = this.body.GetPosition();
+                    npos = pos.Copy();
+                    var angle = this.body.GetAngle();
+                    npos.x += Math.sin(angle) * 3;
+                    npos.y -= Math.cos(angle) * 3;
+                    var vel = this.body.GetLinearVelocity();
+                    var force = new box.Vec2(Math.sin(angle) * 150, Math.cos(angle) * -150);
+                    var s = new Shrapnel(this.game, npos.x, npos.y, .01, false);
+                    //s.body.SetAngularVelocity(Math.random() * 50 - 25);
+                    s.body.SetLinearVelocity(vel);
+                    s.body.ApplyImpulse(force, s.body.GetPosition());
+                    this.game.shraps.push(s);
+                    this.last_shot = now;
+                }
+            }
+            if(this.game.keys[38] == true) {
+                var cp = pos.Copy();
+                cp.x += Math.sin(this.angle) * -2;
+                cp.y += Math.cos(this.angle) * 2;
+                //ctx.fillRect(cp.x * scale - 10, cp.y * scale - 10, 20, 20);
+                var force = new box.Vec2(Math.sin(this.angle), Math.cos(this.angle))
+                force.x *= dt / 3;
+                force.y *= -dt / 3;
+                this.body.ApplyImpulse(force, cp);
+
+                vel = this.body.GetLinearVelocity();
+                if(now - this.last_particle > 50) {
+                    var p = new particle.Particle(this.game, this.game.smoke);
+                    p.reset(
+                        cp.x * this.game.scale,
+                        cp.y * this.game.scale,
+                        Math.sin(this.angle) * -(-vel.x +  60 + (30 * Math.random())),
+                        Math.cos(this.angle) *(vel.y  + 60 + (30 * Math.random())) ,
+                        10, 25, 1, -.5,
+                        Math.random() * 360,
+                        Math.random() * 10 - 5);
+                    this.last_particle = now;
+                }
+
+                var ctx = this.game.ctx;
+                ctx.save();
+                ctx.translate(cp.x * this.game.scale, cp.y * this.game.scale);
+                ctx.rotate(this.angle + Math.PI);
+                ctx.drawImage(flame, -7.5, -9.5, 15, 19);
+                ctx.restore();
+
+            }
+            if(this.game.keys[39] == true) {
+                var cp = pos.Copy();
+                cp.x -= Math.sin(this.angle) * -1.5;
+                cp.y -= Math.cos(this.angle) * 1.5;
+                //ctx.fillStyle = 'red'
+                //ctx.fillRect(cp.x * scale - 10, cp.y * scale - 10, 20, 20);
+                var force = new box.Vec2(Math.sin(this.angle + Math.PI/2) * .20, Math.cos(this.angle - Math.PI/2) * .20)
+                //ctx.fillRect(cp.x * scale - force.x * scale * 2 - 5, cp.y * scale - force.y * scale * 2 - 5, 10, 10);
+                ctx.save();
+                ctx.translate(cp.x * this.game.scale - force.x * this.game.scale, cp.y * this.game.scale - force.y * this.game.scale );
+                ctx.rotate(this.angle - Math.PI/2);
+                ctx.drawImage(flame, -7.5, -9.5, 15,19);
+                ctx.restore();
+                this.body.ApplyImpulse(force, cp);
+            }
+            if(this.game.keys[37] == true) {
+                var cp = pos.Copy();
+                cp.x += Math.sin(this.angle) * 1.5;
+                cp.y += Math.cos(this.angle) * -1.5;
+                ctx.fillStyle = 'blue'
+                //ctx.fillRect(cp.x * scale - 10, cp.y * scale - 10, 20, 20);
+                var force = new box.Vec2(Math.sin(this.angle - Math.PI/2) * .20, Math.cos(this.angle + Math.PI/2) * .20)
+                ctx.save();
+                ctx.translate(cp.x * this.game.scale - force.x * this.game.scale, cp.y * this.game.scale - force.y * this.game.scale);
+                ctx.rotate(this.angle + Math.PI/2);
+                ctx.drawImage(flame, -7.5, -9.5, 15, 19);
+                ctx.restore();
+                //ctx.fillRect(cp.x * scale - force.x * scale*2  - 5, cp.y  * scale - force.y * scale * 2- 5, 10, 10);
+                this.body.ApplyImpulse(force, cp);
+            }
+            this.x = pos.x * this.game.scale;
+            this.y = pos.y * this.game.scale;
+            if(this.y < -10) {
+                var vel = this.body.GetLinearVelocity();
+                ctx.save();
+                ctx.translate(this.x, 20);
+                ctx.fillText("Velocity: " + (vel.y.toFixed(2)), -40, 30);
+                ctx.fillText("Distance: " + ((Math.abs(pos.y)).toFixed(2)), -40, 45);
+                ctx.rotate(this.angle);
+                ctx.globalAlpha = .5;
+                ctx.drawImage(rimg, -11, -18);
+                ctx.globalAlpha = 1.0;
+                ctx.restore();
+            } else {
+                ctx.save();
+                ctx.translate(this.x , this.y);
+                ctx.rotate(this.angle);
+                ctx.drawImage(rimg, -11, -18);
+                ctx.restore();
+            }
+        }
+    };
+};
+
+module.exports = Rocket;
+
+});
+
+require.define("/box.js",function(require,module,exports,__dirname,__filename,process,global){module.exports =  {
+    Vec2: Box2D.Common.Math.b2Vec2,
+    Math: Box2D.Common.Math.b2Math,
+    BodyDef: Box2D.Dynamics.b2BodyDef,
+    Body: Box2D.Dynamics.b2Body,
+    FixtureDef: Box2D.Dynamics.b2FixtureDef,
+    Fixture: Box2D.Dynamics.b2Fixture,
+    World: Box2D.Dynamics.b2World,
+    MassData: Box2D.Collision.Shapes.b2MassData,
+    PolygonShape: Box2D.Collision.Shapes.b2PolygonShape,
+    CircleShape: Box2D.Collision.Shapes.b2CircleShape,
+    DebugDraw: Box2D.Dynamics.b2DebugDraw
+};
+
+});
+
+require.define("/particle.js",function(require,module,exports,__dirname,__filename,process,global){var pcount = 0;
+var particles = {};
+
+var Particle = function(game, img) {
+    this.idx = pcount++;
+    particles[this.idx] = this;
+    this.start = Date.now();
+    this.img = img;
+    this.game = game;
+};
+
+(function() {
+    this.reset = function(x, y, mx, my, s, ms, o, mo, a, ma) {
+        this.start = Date.now();
+        this.x = x;
+        this.y = y;
+        this.mx = mx;
+        this.my = my;
+        this.s = s;
+        this.ms = ms;
+        this.o = o;
+        this.mo = mo;
+        this.a = a;
+        this.ma = ma;
+    };
+
+    this.animate = function(dt, now) {
+        var ctx = this.game.ctx;
+        this.x = this.x + this.mx * dt / .6;
+        this.y = this.y + this.my * dt / .6;
+        this.s = this.s + this.ms * dt;
+        this.o = this.o + this.mo * dt;
+        this.a = this.a + this.ma * dt;
+        ctx.globalAlpha = this.o;
+        if(this.y > this.game.canvas.height - 20) {
+            this.my = 0;
+            this.mx = this.mx = Math.random() * 100 - 50;
+            this.y = this.game.canvas.height - 20;
+            //delete particles[pcount];
+        }
+        if(now - this.start > 5000 || this.o <= 0) {
+            delete particles[this.idx];
+            return;
+        }
+        ctx.save();
+        ctx.translate(this.x , this.y);
+        ctx.rotate(this.a);
+        //ctx.translate(this.x, this.y + this.s/2);
+        ctx.drawImage(this.img, -this.s/2, -this.s/2, this.s, this.s);
+        ctx.restore();
+    }
+}).call(Particle.prototype);
+
+module.exports = {Particle: Particle, particles: particles};
+
+});
+
+require.define("/shrapnel.js",function(require,module,exports,__dirname,__filename,process,global){var particle = require('./particle');
+
+var Shrapnel = function(game,x, y, a, add_smoke) {
+    this.add_smoke = add_smoke;
+    this.x = x;
+    this.y = y;
+    this.a = a;
+    this.my = 0;
+    this.go = false;
+    this.start = Date.now();
+    this.body = game.makeBody(x, y, [[-.8,-.5],[-.5, -1], [1, -.4], [.4,.5], [-.8, 1]]);
+    this.last_particle = Date.now();
+    //this.body.m_body.SetPosition(200,200);
+    //this.body.x = x;
+    //this.body.y = y;
+    this.animate = function(dt, now) {
+        var pos = this.body.GetPosition();
+        if(pos.x * game.scale > game.canvas.width) {
+            pos.x = 0;
+            this.body.SetPosition(pos);
+        } else if (pos.x < 0) {
+            pos.x = game.canvas.width / game.scale;
+            this.body.SetPosition(pos);
+        }
+        var vel = this.body.GetLinearVelocity();
+        var now = Date.now();
+        if(this.add_smoke && now - this.start < 1200 && now - this.last_particle > 50) {
+            var p = new particle.Particle(game, game.smoke);
+            p.reset(
+                pos.x * game.scale,
+                pos.y * game.scale,
+                Math.random() * 50 - 25,
+                Math.random() * 50 - 25,
+                10, 25, .5, -.2,
+                Math.random() * 360,
+                Math.random() * 10 - 5);
+            this.last_particle = now;
+        }
+        this.angle = this.body.GetAngle();
+        this.x = pos.x * game.scale;
+        this.y = pos.y * game.scale;
+        game.ctx.save();
+        game.ctx.translate(this.x , this.y);
+        game.ctx.rotate(this.angle);
+        game.ctx.drawImage(shrap, -10, -10);
+        game.ctx.restore();
+    };
+
+    this.destroy = function() {
+        game.world.DestroyBody(this.body);
+    }
+};
+
+module.exports = Shrapnel;
+
+});
+
+require.define("/game.js",function(require,module,exports,__dirname,__filename,process,global){
+window.requestAnimFrame = (function(){
+return  window.requestAnimationFrame       || 
+window.webkitRequestAnimationFrame || 
+window.mozRequestAnimationFrame    || 
+window.oRequestAnimationFrame      || 
+window.msRequestAnimationFrame     || 
+function( callback ){
+window.setTimeout(callback, 1000 / 60);
+};
+})();
+
+console.log(window.requestAnimFrame);
+
+var Rocket = require('./rocket');
+var particle = require('./particle');
+var box = require('./box');
+
+var b2Vec2 = Box2D.Common.Math.b2Vec2;
+var b2Math = Box2D.Common.Math.b2Math;
+var b2BodyDef = Box2D.Dynamics.b2BodyDef;
+var b2Body = Box2D.Dynamics.b2Body;
+var b2FixtureDef = Box2D.Dynamics.b2FixtureDef;
+var b2Fixture = Box2D.Dynamics.b2Fixture;
+var b2World = Box2D.Dynamics.b2World;
+var b2MassData = Box2D.Collision.Shapes.b2MassData;
+var b2PolygonShape = Box2D.Collision.Shapes.b2PolygonShape;
+var b2CircleShape = Box2D.Collision.Shapes.b2CircleShape;
+var b2DebugDraw = Box2D.Dynamics.b2DebugDraw;
+ 
+var Game = function() {
+    this.canvas = document.getElementById('viewport');
+    console.log(this.canvas.parentNode.clientWidth, this.canvas.parentNode.clientHeight);
+    this.canvas.width = this.canvas.parentNode.clientWidth;
+    this.canvas.height = this.canvas.parentNode.clientHeight;
+    this.ctx = this.canvas.getContext('2d');
+    this.world = new b2World(
+       //new b2Vec2(0, 50), //gravity
+       new b2Vec2(0,50),
+       false  //allow sleep
+    );
+
+    this.scale = 10;
+
+    this.smoke = new Image;
+    this.smoke.src = 'cloud.png';
+
+    this.rocket = new Rocket(this, this.canvas.width / 2 / this.scale, (this.canvas.height - 20) / this.scale, .01);
+
+    this.last_update = Date.now();
+
+    this.shraps = [];
+
+    this.keys = {};
+    document.addEventListener('keydown', function(e) {
+        //console.log(e.keyCode);
+        this.keys[e.keyCode] = true;
+    }.bind(this));
+
+    document.addEventListener('keyup', function(e) {
+        this.keys[e.keyCode] = false;
+    }.bind(this));
+
+    this.update();
+};
+
+(function() {
+    var avg = 0;
+    var avgt = 0;
+    var average = 0;
+    this.update = function() {
+        var now = Date.now();
+        var dt = (now - this.last_update);
+        avg += dt;
+        avgt++;
+        if (avgt === 20) {
+            average = (1000/(avg/20)).toFixed(2);
+            avgt = 0;
+            avg = 0;
+        }
+
+
+
+        /*
+        var gra = Math.atan2(this.rocket.y - 400, -(this.rocket.x - 400)) + Math.PI/2;
+        if(this.rocket.active) {
+            this.rocket.body.ApplyImpulse(new b2Vec2(Math.sin(gra) * (dt/5), Math.cos(gra) * (dt/5)), this.rocket.body.GetWorldCenter());
+        }
+        */
+
+        this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
+        this.ctx.globalAlpha = 1.0;
+        //ctx.fillStyle = 'white'
+        //ctx.fillRect(0, 0, canvas.width, canvas.height);
+        this.ctx.fillStyle = 'gray'
+        this.ctx.fillRect(0,this.canvas.height - 20, this.canvas.width, 20);
+        //this.world.DrawDebugData();
+        this.ctx.globalAlpha = 1.0;
+        this.ctx.fillStyle = 'black';
+        this.ctx.fillText("FPS: " + (average), 10, this.canvas.height - 30);
+        this.rocket.animate(dt);
+        for(var sidx in this.shraps) {
+            this.shraps[sidx].animate(dt, now);
+        }
+
+        dt = dt/1000;
+        for(var pidx in particle.particles) {
+            particle.particles[pidx].animate(dt, now);
+        }
+        this.world.Step(
+                dt
+               //frame-rate
+            ,  10       //velocity iterations
+            ,  10       //position iterations
+        );
+        //this.world.ClearForces();
+        requestAnimFrame(this.update.bind(this));
+        this.last_update = now;
+    };
+
+    this.makeBody = function (x, y, points, p) {
+        var pidx = 0;
+        while(pidx < points.length) {
+            points[pidx] = new box.Vec2(points[pidx][0], points[pidx][1]);
+            pidx++;
+        }
+        var fixDef = new box.FixtureDef;
+        fixDef.density = 1.0;
+        fixDef.friction = .8;
+        fixDef.restitution = 0.2;
+        fixDef.shape = new box.PolygonShape;
+        fixDef.shape.SetAsArray(points, points.length);
+        fixDef.par = p;
+
+        var bodyDef = new box.BodyDef;
+        if(p) {
+            bodyDef.userData = p;
+        }
+        bodyDef.type = box.Body.b2_dynamicBody;
+        bodyDef.position.x = x;
+        bodyDef.position.y = y;
+
+        var body = this.world.CreateBody(bodyDef);
+        var fixt = body.CreateFixture(fixDef);
+
+        return body;
+    }
+
+}).call(Game.prototype);
+
+
+var game = new Game;
+
+
+/*
+var debugDraw = new b2DebugDraw();
+debugDraw.SetSprite(game.ctx);
+debugDraw.SetDrawScale(game.scale);
+debugDraw.SetFillAlpha(0.3);
+debugDraw.SetLineThickness(1.0);
+debugDraw.SetFlags(b2DebugDraw.e_shapeBit | b2DebugDraw.e_jointBit);
+game.world.SetDebugDraw(debugDraw);
+*/
+
+ 
+var fixDef = new b2FixtureDef;
+fixDef.density = 1.0;
+fixDef.friction = .8;
+fixDef.restitution = 0.2;
+
+
+var bodyDef = new b2BodyDef;
+//create ground
+bodyDef.type = b2Body.b2_staticBody;
+bodyDef.position.x = game.canvas.width / 2 / game.scale;
+bodyDef.position.y = game.canvas.height / game.scale;
+bodyDef.userData = "ground";
+//fixDef.shape = new b2CircleShape(20);
+fixDef.shape = new b2PolygonShape
+fixDef.shape.SetAsBox(game.canvas.width / 2 / game.scale, 2);
+game.world.CreateBody(bodyDef).CreateFixture(fixDef);
+
+flame = new Image();
+flame.src = 'flame.gif';
+fireball = new Image();
+fireball.src = 'fireball.png';
+shrap = new Image();
+shrap.src = 'shrapenel.png';
+
+var shraps = [];
+
+
+var last_update = Date.now();
+var last_particle = Date.now();
+
+var mouse_x = 0;
+var mouse_y = 0;
+
+
+
+function normalizeAngle(angle) {
+    if(angle == 0) { return 0; }
+    if(angle < 0 || angle > Math.PI * 2) return Math.abs((Math.PI * 2) - Math.abs(angle));
+}
+
+
+var contactListener = new Box2D.Dynamics.b2ContactListener;
+contactListener.PreSolve = function(contact, manifold) {
+    var a = contact.GetFixtureA(); 
+    var ab = a.GetBody();
+    var b = contact.GetFixtureB(); 
+    var bb = b.GetBody();
+    var au = ab.GetUserData();
+    var bu = bb.GetUserData();
+    if((au instanceof Rocket && bu == 'ground') || au == 'ground' && bu instanceof Rocket) { 
+        var av = ab.GetLinearVelocity();
+        var bv = bb.GetLinearVelocity();
+        var f = b2Math.Distance(bv, av);
+        var r = null;
+        if(au instanceof Rocket) r = au;
+        if(bu instanceof Rocket) r = bu;
+        if(r && f > 25) {
+            setTimeout(
+            r.explode.bind(r), 0);
+            /*
+            au.explode();
+            bu.explode();
+            */
+
+        } else if (r.body) {
+            var a = r.body.GetAngle();
+            a = Box2D.Common.Math.b2Mat22.FromAngle(a);
+            a = Math.abs(Math.atan2(a.col1.y, a.col1.x));
+            if(a > 1.5) {
+            setTimeout(
+            r.explode.bind(r), 0);
+            }
+        }
+    }
+    // rocket.explode();
+       //do some stuff 
+};
+game.world.SetContactListener(contactListener);
+
+});
+require("/game.js");
+})();
+

public/particle.js

@@ -0,0 +1,54 @@
+var pcount = 0;
+var particles = {};
+
+var Particle = function(game, img) {
+    this.idx = pcount++;
+    particles[this.idx] = this;
+    this.start = Date.now();
+    this.img = img;
+    this.game = game;
+};
+
+(function() {
+    this.reset = function(x, y, mx, my, s, ms, o, mo, a, ma) {
+        this.start = Date.now();
+        this.x = x;
+        this.y = y;
+        this.mx = mx;
+        this.my = my;
+        this.s = s;
+        this.ms = ms;
+        this.o = o;
+        this.mo = mo;
+        this.a = a;
+        this.ma = ma;
+    };
+
+    this.animate = function(dt, now) {
+        var ctx = this.game.ctx;
+        this.x = this.x + this.mx * dt / .6;
+        this.y = this.y + this.my * dt / .6;
+        this.s = this.s + this.ms * dt;
+        this.o = this.o + this.mo * dt;
+        this.a = this.a + this.ma * dt;
+        ctx.globalAlpha = this.o;
+        if(this.y > this.game.canvas.height - 20) {
+            this.my = 0;
+            this.mx = this.mx = Math.random() * 100 - 50;
+            this.y = this.game.canvas.height - 20;
+            //delete particles[pcount];
+        }
+        if(now - this.start > 5000 || this.o <= 0) {
+            delete particles[this.idx];
+            return;
+        }
+        ctx.save();
+        ctx.translate(this.x , this.y);
+        ctx.rotate(this.a);
+        //ctx.translate(this.x, this.y + this.s/2);
+        ctx.drawImage(this.img, -this.s/2, -this.s/2, this.s, this.s);
+        ctx.restore();
+    }
+}).call(Particle.prototype);
+
+module.exports = {Particle: Particle, particles: particles};

public/retina.js

@@ -0,0 +1,142 @@
+(function() {
+
+  var root = (typeof exports == 'undefined' ? window : exports);
+
+  var config = {
+    // Ensure Content-Type is an image before trying to load @2x image
+    // https://github.com/imulus/retinajs/pull/45)
+    check_mime_type: true
+  };
+
+
+
+  root.Retina = Retina;
+
+  function Retina() {}
+
+  Retina.configure = function(options) {
+    if (options == null) options = {};
+    for (var prop in options) config[prop] = options[prop];
+  };
+
+  Retina.init = function(context) {
+    if (context == null) context = root;
+
+    var existing_onload = context.onload || new Function;
+
+    context.onload = function() {
+      var images = document.getElementsByTagName("img"), retinaImages = [], i, image;
+      for (i = 0; i < images.length; i++) {
+        image = images[i];
+        retinaImages.push(new RetinaImage(image));
+      }
+      existing_onload();
+    }
+  };
+
+  Retina.isRetina = function(){
+    var mediaQuery = "(-webkit-min-device-pixel-ratio: 1.5),\
+                      (min--moz-device-pixel-ratio: 1.5),\
+                      (-o-min-device-pixel-ratio: 3/2),\
+                      (min-resolution: 1.5dppx)";
+
+    if (root.devicePixelRatio > 1)
+      return true;
+
+    if (root.matchMedia && root.matchMedia(mediaQuery).matches)
+      return true;
+
+    return false;
+  };
+
+
+  root.RetinaImagePath = RetinaImagePath;
+
+  function RetinaImagePath(path, at_2x_path) {
+    this.path = path;
+    if (typeof at_2x_path !== "undefined" && at_2x_path !== null) {
+      this.at_2x_path = at_2x_path;
+      this.perform_check = false;
+    } else {
+      this.at_2x_path = path.replace(/\.\w+$/, function(match) { return "@2x" + match; });
+      this.perform_check = true;
+    }
+  }
+
+  RetinaImagePath.confirmed_paths = [];
+
+  RetinaImagePath.prototype.is_external = function() {
+    return !!(this.path.match(/^https?\:/i) && !this.path.match('//' + document.domain) )
+  }
+
+  RetinaImagePath.prototype.check_2x_variant = function(callback) {
+    var http, that = this;
+    if (this.is_external()) {
+      return callback(false);
+    } else if (!this.perform_check && typeof this.at_2x_path !== "undefined" && this.at_2x_path !== null) {
+      return callback(true);
+    } else if (this.at_2x_path in RetinaImagePath.confirmed_paths) {
+      return callback(true);
+    } else {
+      http = new XMLHttpRequest;
+      http.open('HEAD', this.at_2x_path);
+      http.onreadystatechange = function() {
+        if (http.readyState != 4) {
+          return callback(false);
+        }
+
+        if (http.status >= 200 && http.status <= 399) {
+          if (config.check_mime_type) {
+            var type = http.getResponseHeader('Content-Type');
+            if (type == null || !type.match(/^image/i)) {
+              return callback(false);
+            }
+          }
+
+          RetinaImagePath.confirmed_paths.push(that.at_2x_path);
+          return callback(true);
+        } else {
+          return callback(false);
+        }
+      }
+      http.send();
+    }
+  }
+
+
+
+  function RetinaImage(el) {
+    this.el = el;
+    this.path = new RetinaImagePath(this.el.getAttribute('src'), this.el.getAttribute('data-at2x'));
+    var that = this;
+    this.path.check_2x_variant(function(hasVariant) {
+      if (hasVariant) that.swap();
+    });
+  }
+
+  root.RetinaImage = RetinaImage;
+
+  RetinaImage.prototype.swap = function(path) {
+    if (typeof path == 'undefined') path = this.path.at_2x_path;
+
+    var that = this;
+    function load() {
+      if (! that.el.complete) {
+        setTimeout(load, 5);
+      } else {
+        that.el.setAttribute('width', that.el.offsetWidth);
+        that.el.setAttribute('height', that.el.offsetHeight);
+        that.el.setAttribute('src', path);
+      }
+    }
+    load();
+  }
+
+
+
+
+  if (Retina.isRetina()) {
+    Retina.init(root);
+  }
+
+})();

public/rocket.js

@@ -0,0 +1,190 @@
+var box = require('./box');
+//var util = require('./utils');
+var particle = require('./particle');
+var Shrapnel = require('./shrapnel');
+
+var rimg = new Image();
+rimg.src = 'ship2.png';
+
+
+var Rocket = function(game, x, y, a) {
+    this.game = game;
+    this.x = x;
+    this.y = y;
+    this.a = a;
+    this.my = 0;
+    this.go = false;
+    this.start = Date.now();
+    this.body = this.game.makeBody(x, y, [[0,-2],[1.2,1.8],[-1.2,1.8]], this);
+    this.active = true;
+    this.last_particle = Date.now();
+    this.last_shot = Date.now();
+
+    this.explode = function() {
+        if(!this.active) { return; }
+        var pos = this.body.GetPosition();
+        var vel = this.body.GetLinearVelocity();
+        var idx = 0;
+        var a = Math.random() * Math.PI;
+        while(idx < 4) {
+            idx++;
+            var s = new Shrapnel(this.game, pos.x, pos.y, .01, true);
+            s.body.SetAngularVelocity(Math.random() * 50 - 25);
+            var af = Math.random() * 100 + 50;
+            s.body.SetLinearVelocity(this.body.GetLinearVelocity());
+
+            var f = new box.Vec2(Math.sin(a) * af, Math.cos(a) * af);
+            s.body.ApplyImpulse(f, pos);
+            this.game.shraps.push(s);
+            a += Math.PI/2;
+        }
+        var pidx = 0;
+        while (pidx < 10) {
+            var p = new particle.Particle(this.game, fireball);
+            p.reset(pos.x * this.game.scale, pos.y * this.game.scale, 
+                    vel.x + Math.random() * 50 -25 , vel.y + Math.random() * 50 - 25,
+
+                    1, 200 * Math.random(), 1, -.5,
+                    Math.random() * 360,
+                    Math.random() * 2- 1);
+            pidx++;
+        }
+        this.game.world.DestroyBody(this.body);
+        this.active = false;
+    }
+    this.animate = function(dt, now) {
+        var ctx = this.game.ctx;
+            var now = Date.now();
+            if(this.active == false && this.game.keys[82] == true) {
+                this.body = this.game.makeBody(40, 78, [[0,-2],[1.2,1.8],[-1.2,1.8]], this);
+                this.body.SetPosition(new box.Vec2(this.game.canvas.width / 2 / this.game.scale, (this.game.canvas.height - 20) / this.game.scale));
+                this.body.SetAngle(0);
+                this.body.SetAngularVelocity(0);
+                this.body.SetLinearVelocity(new box.Vec2(0, 0));
+                for(var s in this.game.shraps) {
+                    this.game.shraps[s].destroy();
+                }
+                this.game.shraps = [];
+
+                this.active = true;
+                console.log('reset');
+            }
+        if(this.active) {
+            if(this.game.keys[88] == true) {
+                this.explode();
+                return;
+    
+            }
+            var pos = this.body.GetPosition();
+            if(pos.x * this.game.scale > this.game.canvas.width) {
+                pos.x = 0;
+                this.body.SetPosition(pos);
+            } else if (pos.x < 0) {
+                pos.x = this.game.canvas.width / this.game.scale;
+                this.body.SetPosition(pos);
+            }
+            this.angle = this.body.GetAngle();
+            if(this.game.keys[32] == true) {
+                if(now - this.last_shot > 100) {
+                    var pos = this.body.GetPosition();
+                    npos = pos.Copy();
+                    var angle = this.body.GetAngle();
+                    npos.x += Math.sin(angle) * 3;
+                    npos.y -= Math.cos(angle) * 3;
+                    var vel = this.body.GetLinearVelocity();
+                    var force = new box.Vec2(Math.sin(angle) * 150, Math.cos(angle) * -150);
+                    var s = new Shrapnel(this.game, npos.x, npos.y, .01, false);
+                    //s.body.SetAngularVelocity(Math.random() * 50 - 25);
+                    s.body.SetLinearVelocity(vel);
+                    s.body.ApplyImpulse(force, s.body.GetPosition());
+                    this.game.shraps.push(s);
+                    this.last_shot = now;
+                }
+            }
+            if(this.game.keys[38] == true) {
+                var cp = pos.Copy();
+                cp.x += Math.sin(this.angle) * -2;
+                cp.y += Math.cos(this.angle) * 2;
+                //ctx.fillRect(cp.x * scale - 10, cp.y * scale - 10, 20, 20);
+                var force = new box.Vec2(Math.sin(this.angle), Math.cos(this.angle))
+                force.x *= dt / 3;
+                force.y *= -dt / 3;
+                this.body.ApplyImpulse(force, cp);
+
+                vel = this.body.GetLinearVelocity();
+                if(now - this.last_particle > 50) {
+                    var p = new particle.Particle(this.game, this.game.smoke);
+                    p.reset(
+                        cp.x * this.game.scale,
+                        cp.y * this.game.scale,
+                        Math.sin(this.angle) * -(-vel.x +  60 + (30 * Math.random())),
+                        Math.cos(this.angle) *(vel.y  + 60 + (30 * Math.random())) ,
+                        10, 25, 1, -.5,
+                        Math.random() * 360,
+                        Math.random() * 10 - 5);
+                    this.last_particle = now;
+                }
+
+                var ctx = this.game.ctx;
+                ctx.save();
+                ctx.translate(cp.x * this.game.scale, cp.y * this.game.scale);
+                ctx.rotate(this.angle + Math.PI);
+                ctx.drawImage(flame, -7.5, -9.5, 15, 19);
+                ctx.restore();
+
+            }
+            if(this.game.keys[39] == true) {
+                var cp = pos.Copy();
+                cp.x -= Math.sin(this.angle) * -1.5;
+                cp.y -= Math.cos(this.angle) * 1.5;
+                //ctx.fillStyle = 'red'
+                //ctx.fillRect(cp.x * scale - 10, cp.y * scale - 10, 20, 20);
+                var force = new box.Vec2(Math.sin(this.angle + Math.PI/2) * .20, Math.cos(this.angle - Math.PI/2) * .20)
+                //ctx.fillRect(cp.x * scale - force.x * scale * 2 - 5, cp.y * scale - force.y * scale * 2 - 5, 10, 10);
+                ctx.save();
+                ctx.translate(cp.x * this.game.scale - force.x * this.game.scale, cp.y * this.game.scale - force.y * this.game.scale );
+                ctx.rotate(this.angle - Math.PI/2);
+                ctx.drawImage(flame, -7.5, -9.5, 15,19);
+                ctx.restore();
+                this.body.ApplyImpulse(force, cp);
+            }
+            if(this.game.keys[37] == true) {
+                var cp = pos.Copy();
+                cp.x += Math.sin(this.angle) * 1.5;
+                cp.y += Math.cos(this.angle) * -1.5;
+                ctx.fillStyle = 'blue'
+                //ctx.fillRect(cp.x * scale - 10, cp.y * scale - 10, 20, 20);
+                var force = new box.Vec2(Math.sin(this.angle - Math.PI/2) * .20, Math.cos(this.angle + Math.PI/2) * .20)
+                ctx.save();
+                ctx.translate(cp.x * this.game.scale - force.x * this.game.scale, cp.y * this.game.scale - force.y * this.game.scale);
+                ctx.rotate(this.angle + Math.PI/2);
+                ctx.drawImage(flame, -7.5, -9.5, 15, 19);
+                ctx.restore();
+                //ctx.fillRect(cp.x * scale - force.x * scale*2  - 5, cp.y  * scale - force.y * scale * 2- 5, 10, 10);
+                this.body.ApplyImpulse(force, cp);
+            }
+            this.x = pos.x * this.game.scale;
+            this.y = pos.y * this.game.scale;
+            if(this.y < -10) {
+                var vel = this.body.GetLinearVelocity();
+                ctx.save();
+                ctx.translate(this.x, 20);
+                ctx.fillText("Velocity: " + (vel.y.toFixed(2)), -40, 30);
+                ctx.fillText("Distance: " + ((Math.abs(pos.y)).toFixed(2)), -40, 45);
+                ctx.rotate(this.angle);
+                ctx.globalAlpha = .5;
+                ctx.drawImage(rimg, -11, -18);
+                ctx.globalAlpha = 1.0;
+                ctx.restore();
+            } else {
+                ctx.save();
+                ctx.translate(this.x , this.y);
+                ctx.rotate(this.angle);
+                ctx.drawImage(rimg, -11, -18);
+                ctx.restore();
+            }
+        }
+    };
+};
+
+module.exports = Rocket;

public/ship.svg

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   version="1.1"
+   id="ship"
+   x="0px"
+   y="0px"
+   xml:space="preserve"
+   inkscape:version="0.48.2 r9819"
+   width="100%"
+   height="100%"
+   sodipodi:docname="ship.svg"><metadata
+   id="metadata3134"><rdf:RDF><cc:Work
+       rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+         rdf:resource="http://purl.org/dc/dcmitype/StillImage" /></cc:Work></rdf:RDF></metadata><defs
+   id="defs3132" /><sodipodi:namedview
+   pagecolor="#ffffff"
+   bordercolor="#666666"
+   borderopacity="1"
+   objecttolerance="10"
+   gridtolerance="10"
+   guidetolerance="10"
+   inkscape:pageopacity="0"
+   inkscape:pageshadow="2"
+   inkscape:window-width="887"
+   inkscape:window-height="708"
+   id="namedview3130"
+   showgrid="false"
+   inkscape:zoom="7.0847604"
+   inkscape:cx="41.215997"
+   inkscape:cy="1003.5875"
+   inkscape:window-x="0"
+   inkscape:window-y="0"
+   inkscape:window-maximized="0"
+   inkscape:current-layer="g3124" />
+<g
+   id="g3124"
+   transform="matrix(0.70710678,-0.70710678,0.70710678,0.70710678,-12.842404,32.822117)">
+	<path
+   d="m 48.921908,16.495906 c -7.96e-4,-0.235169 -0.171507,-0.41824 -0.407014,-0.436469 -4.332912,-0.307404 -8.687353,0.230951 -12.638207,2.106216 -2.96082,1.404524 -5.483343,3.581816 -7.49713,6.148099 -1.9816,0.03989 -3.868475,0.662396 -5.665481,1.462168 -1.123138,0.500107 -2.093541,0.924501 -2.808213,1.934173 -1.574659,2.226401 -2.248594,5.27874 -2.635702,7.939853 -0.03279,0.221986 0.242119,0.344659 0.414295,0.256614 1.721044,-0.85946 3.787414,-1.120502 5.713068,-1.134307 -0.100308,0.436764 -0.193576,0.872775 -0.269861,1.309379 -0.01,0.05669 -0.01893,0.111406 -0.02786,0.166126 -0.03994,0.08365 -0.05019,0.176356 -0.01635,0.267592 0.02204,0.113838 0.09633,0.19248 0.190921,0.234805 0.04751,0.04369 0.09405,0.08634 0.141584,0.12902 -0.160464,0.411652 -0.31893,0.823372 -0.479395,1.235022 -0.03195,0.08394 -0.0076,0.216869 0.06243,0.275347 1.213898,1.026989 2.427796,2.053979 3.642694,3.081005 0.09717,0.08245 0.217883,0.12168 0.338257,0.05584 0.304994,-0.166457 0.608954,-0.33195 0.912951,-0.498441 0.321412,0.194335 0.650174,0.292868 0.973365,0.207097 0.290859,-0.07691 0.578897,-0.158893 0.867004,-0.242891 0.0754,1.823743 -0.08269,3.743396 -0.778389,5.413133 -0.191141,0.66588 -0.283323,0.68243 -0.08877,0.641194 2.565924,-0.554788 5.84464,-1.711969 7.953883,-3.315334 0.975468,-0.741409 1.282471,-1.481146 1.737794,-2.599937 0.702823,-1.730526 1.226259,-3.596395 1.262818,-5.474263 0.352577,-0.296876 0.697295,-0.598029 1.03451,-0.913452 4.437222,-4.169684 7.088581,-10.007708 7.887074,-15.99649 0.105865,-0.795787 0.181026,-1.459573 0.179669,-2.251101 z M 38.842671,27.73099 c -1.800904,-0.06289 -3.208062,-1.572918 -3.145208,-3.372821 0.06289,-1.800901 1.571954,-3.209093 3.372856,-3.146205 1.800903,0.06289 3.20806,1.572919 3.145172,3.373821 -0.06286,1.799902 -1.571919,3.208095 -3.37282,3.145205 z"
+   id="path3126"
+   inkscape:connector-curvature="0"
+   style="fill:#00adee;fill-opacity:1"
+   sodipodi:nodetypes="ccccccccccccccccccccccccccccccsssss" />
+	
+</g>
+</svg>

public/shrapnel.js

@@ -0,0 +1,54 @@
+var particle = require('./particle');
+
+var Shrapnel = function(game,x, y, a, add_smoke) {
+    this.add_smoke = add_smoke;
+    this.x = x;
+    this.y = y;
+    this.a = a;
+    this.my = 0;
+    this.go = false;
+    this.start = Date.now();
+    this.body = game.makeBody(x, y, [[-.8,-.5],[-.5, -1], [1, -.4], [.4,.5], [-.8, 1]]);
+    this.last_particle = Date.now();
+    //this.body.m_body.SetPosition(200,200);
+    //this.body.x = x;
+    //this.body.y = y;
+    this.animate = function(dt, now) {
+        var pos = this.body.GetPosition();
+        if(pos.x * game.scale > game.canvas.width) {
+            pos.x = 0;
+            this.body.SetPosition(pos);
+        } else if (pos.x < 0) {
+            pos.x = game.canvas.width / game.scale;
+            this.body.SetPosition(pos);
+        }
+        var vel = this.body.GetLinearVelocity();
+        var now = Date.now();
+        if(this.add_smoke && now - this.start < 1200 && now - this.last_particle > 50) {
+            var p = new particle.Particle(game, game.smoke);
+            p.reset(
+                pos.x * game.scale,
+                pos.y * game.scale,
+                Math.random() * 50 - 25,
+                Math.random() * 50 - 25,
+                10, 25, .5, -.2,
+                Math.random() * 360,
+                Math.random() * 10 - 5);
+            this.last_particle = now;
+        }
+        this.angle = this.body.GetAngle();
+        this.x = pos.x * game.scale;
+        this.y = pos.y * game.scale;
+        game.ctx.save();
+        game.ctx.translate(this.x , this.y);
+        game.ctx.rotate(this.angle);
+        game.ctx.drawImage(shrap, -10, -10);
+        game.ctx.restore();
+    };
+
+    this.destroy = function() {
+        game.world.DestroyBody(this.body);
+    }
+};
+
+module.exports = Shrapnel;

public/simplewebrtc.js

@@ -0,0 +1,657 @@
+;(function () {
+
+var logger = {
+    log: function (){},
+    warn: function (){},
+    error: function (){}
+};
+
+// normalize environment
+var RTCPeerConnection = null,
+    getUserMedia = null,
+    attachMediaStream = null,
+    reattachMediaStream = null,
+    browser = null,
+    screenSharingSupport = false;
+    webRTCSupport = true;
+
+if (navigator.mozGetUserMedia) {
+    logger.log("This appears to be Firefox");
+
+    browser = "firefox";
+
+    // The RTCPeerConnection object.
+    RTCPeerConnection = mozRTCPeerConnection;
+
+    // The RTCSessionDescription object.
+    RTCSessionDescription = mozRTCSessionDescription;
+
+    // The RTCIceCandidate object.
+    RTCIceCandidate = mozRTCIceCandidate;
+
+    // Get UserMedia (only difference is the prefix).
+    // Code from Adam Barth.
+    getUserMedia = navigator.mozGetUserMedia.bind(navigator);
+
+    // Attach a media stream to an element.
+    attachMediaStream = function(element, stream) {
+        element.mozSrcObject = stream;
+        element.play();
+    };
+
+    reattachMediaStream = function(to, from) {
+        to.mozSrcObject = from.mozSrcObject;
+        to.play();
+    };
+
+    // Fake get{Video,Audio}Tracks
+    MediaStream.prototype.getVideoTracks = function() {
+        return [];
+    };
+
+    MediaStream.prototype.getAudioTracks = function() {
+        return [];
+    };
+} else if (navigator.webkitGetUserMedia) {
+    browser = "chrome";
+
+    screenSharingSupport = navigator.userAgent.match('Chrome') && parseInt(navigator.userAgent.match(/Chrome\/(.*) /)[1]) >= 26
+
+    // The RTCPeerConnection object.
+    RTCPeerConnection = webkitRTCPeerConnection;
+
+    // Get UserMedia (only difference is the prefix).
+    // Code from Adam Barth.
+    getUserMedia = navigator.webkitGetUserMedia.bind(navigator);
+
+    // Attach a media stream to an element.
+    attachMediaStream = function(element, stream) {
+        element.autoplay = true;
+        element.src = webkitURL.createObjectURL(stream);
+    };
+
+    reattachMediaStream = function(to, from) {
+        to.src = from.src;
+    };
+
+    // The representation of tracks in a stream is changed in M26.
+    // Unify them for earlier Chrome versions in the coexisting period.
+    if (!webkitMediaStream.prototype.getVideoTracks) {
+        webkitMediaStream.prototype.getVideoTracks = function() {
+            return this.videoTracks;
+        };
+        webkitMediaStream.prototype.getAudioTracks = function() {
+            return this.audioTracks;
+        };
+    }
+
+    // New syntax of getXXXStreams method in M26.
+    if (!webkitRTCPeerConnection.prototype.getLocalStreams) {
+        webkitRTCPeerConnection.prototype.getLocalStreams = function() {
+            return this.localStreams;
+        };
+        webkitRTCPeerConnection.prototype.getRemoteStreams = function() {
+            return this.remoteStreams;
+        };
+    }
+} else {
+    webRTCSupport = false;
+    throw new Error("Browser does not appear to be WebRTC-capable");
+}
+
+
+// emitter that we use as a base
+function WildEmitter() {
+    this.callbacks = {};
+}
+
+// Listen on the given `event` with `fn`. Store a group name if present.
+WildEmitter.prototype.on = function (event, groupName, fn) {
+    var hasGroup = (arguments.length === 3),
+        group = hasGroup ? arguments[1] : undefined,
+        func = hasGroup ? arguments[2] : arguments[1];
+    func._groupName = group;
+    (this.callbacks[event] = this.callbacks[event] || []).push(func);
+    return this;
+};
+
+// Adds an `event` listener that will be invoked a single
+// time then automatically removed.
+WildEmitter.prototype.once = function (event, fn) {
+    var self = this;
+    function on() {
+        self.off(event, on);
+        fn.apply(this, arguments);
+    }
+    this.on(event, on);
+    return this;
+};
+
+// Unbinds an entire group
+WildEmitter.prototype.releaseGroup = function (groupName) {
+    var item, i, len, handlers;
+    for (item in this.callbacks) {
+        handlers = this.callbacks[item];
+        for (i = 0, len = handlers.length; i < len; i++) {
+            if (handlers[i]._groupName === groupName) {
+                handlers.splice(i, 1);
+                i--;
+                len--;
+            }
+        }
+    }
+    return this;
+};
+
+// Remove the given callback for `event` or all
+// registered callbacks.
+WildEmitter.prototype.off = function (event, fn) {
+    var callbacks = this.callbacks[event],
+        i;
+
+    if (!callbacks) return this;
+
+    // remove all handlers
+    if (arguments.length === 1) {
+        delete this.callbacks[event];
+        return this;
+    }
+
+    // remove specific handler
+    i = callbacks.indexOf(fn);
+    callbacks.splice(i, 1);
+    return this;
+};
+
+// Emit `event` with the given args.
+// also calls any `*` handlers
+WildEmitter.prototype.emit = function (event) {
+    var args = [].slice.call(arguments, 1),
+        callbacks = this.callbacks[event],
+        specialCallbacks = this.getWildcardCallbacks(event),
+        i,
+        len,
+        item;
+
+    if (callbacks) {
+        for (i = 0, len = callbacks.length; i < len; ++i) {
+            callbacks[i].apply(this, args);
+        }
+    }
+
+    if (specialCallbacks) {
+        for (i = 0, len = specialCallbacks.length; i < len; ++i) {
+            specialCallbacks[i].apply(this, [event].concat(args));
+        }
+    }
+
+    return this;
+};
+
+// Helper for for finding special wildcard event handlers that match the event
+WildEmitter.prototype.getWildcardCallbacks = function (eventName) {
+    var item,
+        split,
+        result = [];
+
+    for (item in this.callbacks) {
+        split = item.split('*');
+        if (item === '*' || (split.length === 2 && eventName.slice(0, split[1].length) === split[1])) {
+            result = result.concat(this.callbacks[item]);
+        }
+    }
+    return result;
+};
+
+
+function WebRTC(opts) {
+    var self = this,
+        options = opts || {},
+        config = this.config = {
+            url: 'http://signaling.simplewebrtc.com:8888',
+            log: false,
+            localVideoEl: '',
+            remoteVideosEl: '',
+            autoRequestMedia: false,
+            // makes the entire PC config overridable
+            peerConnectionConfig: {
+                iceServers: browser == 'firefox' ? [{"url":"stun:124.124.124.2"}] : [{"url": "stun:stun.l.google.com:19302"}]
+            },
+            peerConnectionContraints: {
+                optional: [{"DtlsSrtpKeyAgreement": true}]
+            },
+            media: {
+                audio:true,
+                video: {
+                    mandatory: {},
+                    optional: []
+                }
+            }
+        },
+        item,
+        connection;
+
+    // check for support
+    if (!webRTCSupport) {
+        console.error('Your browser doesn\'t seem to support WebRTC');
+    }
+
+    // expose screensharing check
+    this.screenSharingSupport = screenSharingSupport;
+
+    // set options
+    for (item in options) {
+        this.config[item] = options[item];
+    }
+
+    // log if configured to
+    if (this.config.log) logger = console;
+
+    // where we'll store our peer connections
+    this.peers = [];
+
+    // our socket.io connection
+    connection = this.connection = io.connect(this.config.url);
+
+    connection.on('connect', function () {
+        self.emit('ready', connection.socket.sessionid);
+        self.sessionReady = true;
+        self.testReadiness();
+    });
+
+    connection.on('message', function (message) {
+        var peers = self.getPeers(message.from, message.roomType),
+            peer;
+
+        if (message.type === 'offer') {
+            peer = self.createPeer({
+                id: message.from,
+                type: message.roomType,
+                sharemyscreen: message.roomType === 'screen' && !message.broadcaster
+            });
+            peer.handleMessage(message);
+        } else if (peers.length) {
+            peers.forEach(function (peer) {
+                peer.handleMessage(message);
+            });
+        }
+    });
+
+    connection.on('remove', function (room) {
+        if (room.id !== self.connection.socket.sessionid) {
+            self.removeForPeerSession(room.id, room.type);
+        }
+    });
+
+    WildEmitter.call(this);
+
+    // log events
+    this.on('*', function (event, val1, val2) {
+        logger.log('event:', event, val1, val2);
+    });
+
+    // auto request if configured
+    if (this.config.autoRequestMedia) this.startLocalVideo();
+}
+
+WebRTC.prototype = Object.create(WildEmitter.prototype, {
+    constructor: {
+        value: WebRTC
+    }
+});
+
+WebRTC.prototype.getEl = function (idOrEl) {
+    if (typeof idOrEl == 'string') {
+        return document.getElementById(idOrEl);
+    } else {
+        return idOrEl;
+    }
+};
+
+// this accepts either element ID or element
+// and either the video tag itself or a container
+// that will be used to put the video tag into.
+WebRTC.prototype.getLocalVideoContainer = function () {
+    var el = this.getEl(this.config.localVideoEl);
+    if (el && el.tagName === 'VIDEO') {
+        return el;
+    } else {
+        var video = document.createElement('video');
+        el.appendChild(video);
+        return video;
+    }
+};
+
+WebRTC.prototype.getRemoteVideoContainer = function () {
+    return this.getEl(this.config.remoteVideosEl);
+};
+
+WebRTC.prototype.createPeer = function (opts) {
+    var peer;
+    opts.parent = this;
+    peer = new Peer(opts);
+    this.peers.push(peer);
+    return peer;
+};
+
+WebRTC.prototype.createRoom = function (name, cb) {
+    if (arguments.length === 2) {
+        this.connection.emit('create', name, cb);
+    } else {
+        this.connection.emit('create', name);
+    }
+};
+
+WebRTC.prototype.joinRoom = function (name) {
+    var self = this;
+    this.roomName = name;
+    this.connection.emit('join', name, function (roomDescription) {
+        var id,
+            client,
+            type,
+            peer;
+        for (id in roomDescription) {
+            client = roomDescription[id];
+            for (type in client) {
+                if (client[type]) {
+                    peer = self.createPeer({
+                        id: id,
+                        type: type
+                    });
+                    peer.start();
+                }
+            }
+        }
+    });
+};
+
+WebRTC.prototype.leaveRoom = function () {
+    if (this.roomName) {
+        this.connection.emit('leave', this.roomName);
+        this.peers.forEach(function (peer) {
+            peer.end();
+        });
+    }
+};
+
+WebRTC.prototype.testReadiness = function () {
+    var self = this;
+    if (this.localStream && this.sessionReady) {
+        // This timeout is a workaround for the strange no-audio bug
+        // as described here: https://code.google.com/p/webrtc/issues/detail?id=1525
+        // remove timeout when this is fixed.
+        setTimeout(function () {
+            self.emit('readyToCall', self.connection.socket.sessionid);
+        }, 1000);
+    }
+};
+
+WebRTC.prototype.startLocalVideo = function (element) {
+    var self = this;
+    getUserMedia(this.config.media, function (stream) {
+        attachMediaStream(element || self.getLocalVideoContainer(), stream);
+        self.localStream = stream;
+        self.testReadiness();
+    }, function () {
+        throw new Error('Failed to get access to local media.');
+    });
+};
+
+// Audio controls
+WebRTC.prototype.mute = function () {
+    this._audioEnabled(false);
+    this.emit('audioOff');
+};
+WebRTC.prototype.unmute = function () {
+    this._audioEnabled(true);
+    this.emit('audioOn');
+};
+
+// Video controls
+WebRTC.prototype.pauseVideo = function () {
+    this._videoEnabled(false);
+    this.emit('videoOff');
+};
+WebRTC.prototype.resumeVideo = function () {
+    this._videoEnabled(true);
+    this.emit('videoOn');
+};
+
+// Combined controls
+WebRTC.prototype.pause = function () {
+    this.mute();
+    this.pauseVideo();
+};
+WebRTC.prototype.resume = function () {
+    this.unmute();
+    this.resumeVideo();
+};
+
+// Internal methods for enabling/disabling audio/video
+WebRTC.prototype._audioEnabled = function (bool) {
+    this.localStream.getAudioTracks().forEach(function (track) {
+        track.enabled = !!bool;
+    });
+};
+WebRTC.prototype._videoEnabled = function (bool) {
+    this.localStream.getVideoTracks().forEach(function (track) {
+        track.enabled = !!bool;
+    });
+};
+
+WebRTC.prototype.shareScreen = function () {
+    var self = this,
+        peer;
+    if (screenSharingSupport) {
+        getUserMedia({
+            video: {
+                mandatory: {
+                    chromeMediaSource: 'screen'
+                }
+            }
+        }, function (stream) {
+            var item,
+                el = document.createElement('video'),
+                container = self.getRemoteVideoContainer();
+
+            self.localScreen = stream;
+
+            el.id = 'localScreen';
+            attachMediaStream(el, stream);
+            if (container) {
+                container.appendChild(el);
+            }
+            self.emit('videoAdded', el);
+            self.connection.emit('shareScreen');
+            self.peers.forEach(function (existingPeer) {
+                var peer;
+                if (existingPeer.type === 'video') {
+                    peer = self.createPeer({
+                        id: existingPeer.id,
+                        type: 'screen',
+                        sharemyscreen: true
+                    });
+                    peer.start();
+                }
+            });
+        }, function () {
+            throw new Error('Failed to access to screen media.');
+        });
+    }
+};
+
+WebRTC.prototype.stopScreenShare = function () {
+    this.connection.emit('unshareScreen');
+    var videoEl = document.getElementById('localScreen'),
+        container = this.getRemoteVideoContainer(),
+        stream = this.localScreen;
+
+    if (container && videoEl) {
+        container.removeChild(videoEl);
+    }
+    this.localScreen.stop();
+    this.peers.forEach(function (peer) {
+        if (peer.broadcaster) {
+            peer.end();
+            // a hack to emit the event the removes the video
+            // element that we want
+            peer.emit('videoRemoved', videoEl);
+        }
+    });
+    delete this.localScreen;
+};
+
+WebRTC.prototype.removeForPeerSession = function (id, type) {
+    this.getPeers(id, type).forEach(function (peer) {
+        peer.end();
+    });
+};
+
+// fetches all Peer objects by session id and/or type
+WebRTC.prototype.getPeers = function (sessionId, type) {
+    return this.peers.filter(function (peer) {
+        return (!sessionId || peer.id === sessionId) && (!type || peer.type === type);
+    });
+};
+
+
+function Peer(options) {
+    var self = this;
+
+    this.id = options.id;
+    this.parent = options.parent;
+    this.type = options.type || 'video';
+    this.oneway = options.oneway || false;
+    this.sharemyscreen = options.sharemyscreen || false;
+    this.stream = options.stream;
+    // Create an RTCPeerConnection via the polyfill
+    this.pc = new RTCPeerConnection(this.parent.config.peerConnectionConfig, this.parent.config.peerConnectionContraints);
+    this.pc.onicecandidate = this.onIceCandidate.bind(this);
+    if (options.type === 'screen') {
+        if (this.parent.localScreen && this.sharemyscreen) {
+            logger.log('adding local screen stream to peer connection')
+            this.pc.addStream(this.parent.localScreen);
+            this.broadcaster = this.parent.connection.socket.sessionid;
+        }
+    } else {
+        this.pc.addStream(this.parent.localStream);
+    }
+    this.pc.onaddstream = this.handleRemoteStreamAdded.bind(this);
+    this.pc.onremovestream = this.handleStreamRemoved.bind(this);
+    // for re-use
+    this.mediaConstraints = {
+        mandatory: {
+            OfferToReceiveAudio: true,
+            OfferToReceiveVideo: true
+        }
+    };
+    WildEmitter.call(this);
+
+    // proxy events to parent
+    this.on('*', function (name, value) {
+        self.parent.emit(name, value, self);
+    });
+}
+
+Peer.prototype = Object.create(WildEmitter.prototype, {
+    constructor: {
+        value: Peer
+    }
+});
+
+Peer.prototype.handleMessage = function (message) {
+    if (message.type === 'offer') {
+        logger.log('setting remote description');
+        this.pc.setRemoteDescription(new RTCSessionDescription(message.payload));
+        this.answer();
+    } else if (message.type === 'answer') {
+        logger.log('setting answer');
+        this.pc.setRemoteDescription(new RTCSessionDescription(message.payload));
+    } else if (message.type === 'candidate') {
+        var candidate = new RTCIceCandidate({
+            sdpMLineIndex: message.payload.label,
+            candidate: message.payload.candidate
+        });
+        this.pc.addIceCandidate(candidate);
+    }
+};
+
+Peer.prototype.send = function (type, payload) {
+    this.parent.connection.emit('message', {
+        to: this.id,
+        broadcaster: this.broadcaster,
+        roomType: this.type,
+        type: type,
+        payload: payload
+    });
+};
+
+Peer.prototype.onIceCandidate = function (event) {
+    if (this.closed) return;
+    if (event.candidate) {
+        this.send('candidate', {
+            label: event.candidate.sdpMLineIndex,
+            id: event.candidate.sdpMid,
+            candidate: event.candidate.candidate
+        });
+    } else {
+      logger.log("End of candidates.");
+    }
+};
+
+Peer.prototype.start = function () {
+    var self = this;
+    this.pc.createOffer(function (sessionDescription) {
+        logger.log('setting local description');
+        self.pc.setLocalDescription(sessionDescription);
+        logger.log('sending offer', sessionDescription);
+        self.send('offer', sessionDescription);
+    }, null, this.mediaConstraints);
+};
+
+Peer.prototype.end = function () {
+    this.pc.close();
+    this.handleStreamRemoved();
+};
+
+Peer.prototype.answer = function () {
+    var self = this;
+    logger.log('answer called');
+    this.pc.createAnswer(function (sessionDescription) {
+        logger.log('setting local description');
+        self.pc.setLocalDescription(sessionDescription);
+        logger.log('sending answer', sessionDescription);
+        self.send('answer', sessionDescription);
+    }, null, this.mediaConstraints);
+};
+
+Peer.prototype.handleRemoteStreamAdded = function (event) {
+    var stream = this.stream = event.stream,
+        el = document.createElement('video'),
+        container = this.parent.getRemoteVideoContainer();
+
+    el.id = this.getDomId();
+    attachMediaStream(el, stream);
+    if (container) container.appendChild(el);
+    this.emit('videoAdded', el);
+};
+
+Peer.prototype.handleStreamRemoved = function () {
+    var video = document.getElementById(this.getDomId()),
+        container = this.parent.getRemoteVideoContainer();
+    if (video && container) {
+        container.removeChild(video);
+        this.emit('videoRemoved', video);
+    }
+    this.parent.peers.splice(this.parent.peers.indexOf(this), 1);
+    this.closed = true;
+};
+
+Peer.prototype.getDomId = function () {
+    return [this.id, this.type, this.broadcaster ? 'broadcasting' : 'incoming'].join('_');
+};
+
+// expose WebRTC
+window.WebRTC = WebRTC;
+
+}());

public/sound-effect-manager.js

@@ -0,0 +1,135 @@
+/*
+SoundEffectManager
+
+Loads and plays sound effects useing
+HTML5 Web Audio API (as only available in webkit, at the moment).
+
+By @HenrikJoreteg from &yet
+*/
+/*global webkitAudioContext define*/
+(function () {
+    var root = this;
+
+    function SoundEffectManager() {
+        this.support = !!window.webkitAudioContext;
+        if (this.support) {
+            this.context = new webkitAudioContext();
+        }
+        this.sounds = {};
+    }
+
+    // async load a file at a given URL, store it as 'name'.
+    SoundEffectManager.prototype.loadFile = function (url, name, delay) {
+        if (this.support) {
+            this._loadWebAudioFile(url, name, delay);
+        } else {
+            this._loadWaveFile(url.replace('.mp3', '.wav'), name, delay);
+        }
+    };
+
+    // async load a file at a given URL, store it as 'name'.
+    SoundEffectManager.prototype._loadWebAudioFile = function (url, name, delay) {
+        if (!this.support) return;
+        var self = this,
+            request = new XMLHttpRequest();
+
+        request.open("GET", url, true);
+        request.responseType = "arraybuffer";
+        request.onload = function () {
+            self.sounds[name] = self.context.createBuffer(request.response, true);
+        };
+
+        setTimeout(function () {
+            request.send();
+        }, delay || 0);
+    };
+
+    SoundEffectManager.prototype._loadWaveFile = function (url, name, delay, multiplexLimit) {
+        var self = this,
+            limit = multiplexLimit || 3;
+        setTimeout(function () {
+            var a, i = 0;
+
+            self.sounds[name] = [];
+            while (i < limit) {
+                a = new Audio();
+                a.src = url;
+                a.load();
+                self.sounds[name][i++] = a;
+            }
+        }, delay || 0);
+    };
+
+    SoundEffectManager.prototype._playWebAudio = function (soundName) {
+        var buffer = this.sounds[soundName],
+            source;
+
+        if (!buffer) return;
+
+        // creates a sound source
+        source = this.context.createBufferSource();
+        // tell the source which sound to play
+        source.buffer = buffer;
+        // connect the source to the context's destination (the speakers)
+        source.connect(this.context.destination);
+        // play it
+        source.noteOn(0);
+    };
+
+    SoundEffectManager.prototype._playWavAudio = function (soundName, loop) {
+        var self = this,
+            audio = this.sounds[soundName],
+            howMany = audio && audio.length || 0,
+            i = 0,
+            currSound;
+
+        if (!audio) return;
+
+        while (i < howMany) {
+            currSound = audio[i++];
+            // this covers case where we loaded an unplayable file type
+            if (currSound.error) return;
+            if (currSound.currentTime === 0 || currSound.currentTime === currSound.duration) {
+                currSound.currentTime = 0;
+                currSound.loop = !!loop;
+                i = howMany;
+                return currSound.play();
+            }
+        }
+    };
+
+    SoundEffectManager.prototype.play = function (soundName, loop) {
+        if (this.support) {
+            this._playWebAudio(soundName, loop);
+        } else {
+            return this._playWavAudio(soundName, loop);
+        }
+    };
+
+    SoundEffectManager.prototype.stop = function (soundName) {
+        if (this.support) {
+            // TODO: this
+        } else {
+            var soundArray = this.sounds[soundName],
+                howMany = soundArray && soundArray.length || 0,
+                i = 0,
+                currSound;
+
+            while (i < howMany) {
+                currSound = soundArray[i++];
+                currSound.pause();
+                currSound.currentTime = 0;
+            }
+        }
+    };
+
+    // attach to window or export with commonJS
+    if (typeof module !== "undefined") {
+        module.exports = SoundEffectManager;
+    } else if (typeof root.define === "function" && define.amd) {
+        root.define(SoundEffectManager);
+    } else {
+        root.SoundEffectManager = SoundEffectManager;
+    }
+
+})();

public/ss-standard.svg

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+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
+<svg xmlns="http://www.w3.org/2000/svg">
+<metadata></metadata>
+<defs>
+<font id="SSStandard" >
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public/style.css

@@ -0,0 +1,600 @@
+article,
+aside,
+details,
+figcaption,
+figure,
+footer,
+header,
+hgroup,
+nav,
+section {
+  display: block;
+}
+audio,
+canvas,
+video {
+  display: inline-block;
+  *display: inline;
+  *zoom: 1;
+}
+audio:not([controls]) {
+  display: none;
+}
+[hidden] {
+  display: none;
+}
+html {
+  font-size: 100%;
+  -webkit-text-size-adjust: 100%;
+  -ms-text-size-adjust: 100%;
+}
+html,
+button,
+input,
+select,
+textarea {
+  font-family: sans-serif;
+  color: #222;
+}
+body {
+  margin: 0;
+  font-size: 1em;
+  line-height: 1.4;
+}
+a {
+  color: #00e;
+}
+a:visited {
+  color: #551a8b;
+}
+a:hover {
+  color: #06e;
+}
+a:focus {
+  outline: thin dotted;
+}
+a:hover,
+a:active {
+  outline: 0;
+}
+abbr[title] {
+  border-bottom: 1px dotted;
+}
+b,
+strong {
+  font-weight: bold;
+}
+blockquote {
+  margin: 1em 40px;
+}
+dfn {
+  font-style: italic;
+}
+hr {
+  display: block;
+  height: 1px;
+  border: 0;
+  border-top: 1px solid #ccc;
+  margin: 1em 0;
+  padding: 0;
+}
+ins {
+  background: #ff9;
+  color: #000;
+  text-decoration: none;
+}
+mark {
+  background: #ff0;
+  color: #000;
+  font-style: italic;
+  font-weight: bold;
+}
+pre,
+code,
+kbd,
+samp {
+  font-family: monospace, serif;
+  _font-family: 'courier new', monospace;
+  font-size: 1em;
+}
+pre {
+  white-space: pre-wrap;
+  word-wrap: break-word;
+}
+q {
+  quotes: none;
+}
+q:before,
+q:after {
+  content: none;
+}
+small {
+  font-size: 85%;
+}
+sub,
+sup {
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+sup {
+  top: -0.5em;
+}
+sub {
+  bottom: -0.25em;
+}
+ul,
+ol {
+  margin: 1em 0;
+  padding: 0 0 0 40px;
+}
+dd {
+  margin: 0 0 0 40px;
+}
+nav ul,
+nav ol {
+  list-style: none;
+  list-style-image: none;
+  margin: 0;
+  padding: 0;
+}
+img {
+  border: 0;
+  -ms-interpolation-mode: bicubic;
+  vertical-align: middle;
+}
+svg:not(:root) {
+  overflow: hidden;
+}
+figure {
+  margin: 0;
+}
+form {
+  margin: 0;
+}
+fieldset {
+  border: 0;
+  margin: 0;
+  padding: 0;
+}
+label {
+  cursor: pointer;
+}
+legend {
+  border: 0;
+  *margin-left: -7px;
+  padding: 0;
+  white-space: normal;
+}
+button,
+input,
+select,
+textarea {
+  font-size: 100%;
+  margin: 0;
+  vertical-align: baseline;
+  *vertical-align: middle;
+}
+button,
+input {
+  line-height: normal;
+}
+button,
+input[type="button"],
+input[type="reset"],
+input[type="submit"] {
+  cursor: pointer;
+  -webkit-appearance: button;
+  *overflow: visible;
+}
+button[disabled],
+input[disabled] {
+  cursor: default;
+}
+input[type="checkbox"],
+input[type="radio"] {
+  box-sizing: border-box;
+  padding: 0;
+  *width: 13px;
+  *height: 13px;
+}
+input[type="search"] {
+  -webkit-appearance: textfield;
+  -moz-box-sizing: content-box;
+  -webkit-box-sizing: content-box;
+  box-sizing: content-box;
+}
+input[type="search"]::-webkit-search-decoration,
+input[type="search"]::-webkit-search-cancel-button {
+  -webkit-appearance: none;
+}
+button::-moz-focus-inner,
+input::-moz-focus-inner {
+  border: 0;
+  padding: 0;
+}
+textarea {
+  overflow: auto;
+  vertical-align: top;
+  resize: vertical;
+}
+input:valid,
+textarea:valid,
+input:invalid,
+textarea:invalid {
+  background-color: #f0dddd;
+}
+table {
+  border-collapse: collapse;
+  border-spacing: 0;
+}
+td {
+  vertical-align: top;
+}
+.clearfix:before,
+.clearfix:after {
+  content: "\0020";
+  display: block;
+  height: 0;
+  visibility: hidden;
+}
+.clearfix:after {
+  clear: both;
+}
+.clearfix {
+  zoom: 1;
+}
+* {
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+}
+::-webkit-input-placeholder {
+  color: #aaa;
+  font-weight: 200;
+}
+:-moz-placeholder {
+  color: #aaa;
+  font-weight: 200;
+}
+::-moz-placeholder {
+  color: #aaa;
+  font-weight: 200;
+}
+body {
+  font-family: "Helvetica Neue", Arial, Helvetica, sans-serif;
+  background: url("http://andyet.com/images/header.png");
+  background-position: top center;
+  background-repeat: no-repeat;
+  overflow: hidden;
+}
+body .loggedIn {
+  display: none;
+}
+body.authed .loggedOut {
+  display: none;
+}
+body.authed .loggedIn {
+  display: block;
+}
+#logo {
+  height: 64px;
+  display: block;
+  margin-bottom: 80px;
+  position: relative;
+  top: 60px;
+}
+#logo img {
+  position: absolute;
+  top: 0;
+  left: 50%;
+  margin-left: -240px;
+}
+h2 {
+  font-weight: 600;
+  color: #333;
+  font-size: 40px;
+  text-align: center;
+  margin: 0;
+}
+h3 {
+  display: none;
+}
+header {
+  position: absolute;
+  top: 20px;
+  right: 20px;
+}
+.page.talk .controls {
+  top: 75px;
+  position: absolute;
+  left: 20px;
+  top: 100px;
+  margin: 0 auto;
+  z-index: 10;
+}
+.page.talk .controls button {
+  padding: 0 1em 0 2em;
+  height: 35px;
+  line-height: 31px;
+}
+.page.talk .controls #shareScreen .unshare {
+  display: none;
+}
+.page.talk .controls #shareScreen.sharingScreen {
+  background: #ec008c;
+}
+.page.talk .controls #shareScreen.sharingScreen .unshare {
+  display: block;
+}
+.page.talk .controls #shareScreen.sharingScreen .share {
+  display: none;
+}
+.page.talk .controls #muteMicrophone .unmute {
+  display: none;
+}
+.page.talk .controls #muteMicrophone.muted {
+  background: #ec008c;
+}
+.page.talk .controls #muteMicrophone.muted .unmute {
+  display: block;
+}
+.page.talk .controls #muteMicrophone.muted .mute {
+  display: none;
+}
+.page.talk .controls #pauseVideo .resume {
+  display: none;
+}
+.page.talk .controls #pauseVideo.paused .resume {
+  display: block;
+}
+.page.talk .controls #pauseVideo.paused .pause {
+  display: none;
+}
+.page.talk .lockControls {
+  display: inline;
+}
+.page.talk .lockControls .unlock {
+  display: none;
+}
+.page.talk .lockControls.roomLocked .unlock {
+  display: inline;
+}
+.page.talk .lockControls.roomLocked .lock {
+  display: none;
+}
+.page.talk h2 {
+  position: relative;
+  margin: 0;
+  line-height: 1;
+  top: -20px;
+}
+.page.talk h2 svg {
+  fill: #12acef;
+}
+.page.talk #logo {
+  width: 100px;
+  margin: 0 auto;
+  position: fixed;
+  left: 20px;
+  top: 20px;
+  overflow: hidden;
+}
+.page.talk #logo img {
+  left: 240px;
+}
+.page.talk section {
+  padding: 0;
+}
+.page.talk h3 {
+  display: block;
+  font-size: 13px;
+  font-weight: normal;
+  margin: 0;
+  position: relative;
+  top: -20px;
+  text-align: center;
+  color: #aaa;
+}
+.page.talk h3 svg {
+  position: relative;
+  top: 3px;
+  fill: #aaa;
+}
+a:link,
+a:visited {
+  color: #12acef;
+}
+.desc {
+  text-align: center;
+  font-size: 18px;
+  margin-top: 0;
+  margin-bottom: 40px;
+  color: #555;
+  font-weight: 200;
+}
+.about {
+  text-align: center;
+  width: 450px;
+  font-size: 13px;
+  margin: 80px auto;
+  color: #444;
+  position: relative;
+  z-index: 10;
+}
+footer {
+  text-align: center;
+  color: #777;
+  font-size: 14px;
+  position: fixed;
+  bottom: 10px;
+  margin: 0;
+  left: 50%;
+  width: 500px;
+  margin-left: -250px;
+  z-index: 100;
+}
+section {
+  margin: 0 auto;
+  width: 100%;
+  padding: 20px 0;
+}
+#createRoom {
+  margin: 0 auto;
+  width: 400px;
+  position: relative;
+  z-index: 10;
+}
+#createRoom input {
+  width: 380px;
+  height: 40px;
+  border: 0px none;
+  display: inline-block;
+  font-size: 16px;
+  padding: 0 10px;
+  background: #eaebeb;
+  border-radius: 3px;
+  font-weight: 100;
+  line-height: 40px;
+  color: #333;
+  font-weight: bold;
+  margin: 0 0 10px 0;
+  text-align: left;
+}
+#createRoom button {
+  position: relative;
+  width: 380px;
+}
+#localVideo {
+  position: fixed;
+  top: 15px;
+  right: 15px;
+  border: 5px solid #777;
+  outline: 0px;
+  height: 70px;
+  -o-transform: scaleX(-1);
+  -webkit-transform: scaleX(-1);
+  -moz-transform: scaleX(-1);
+  -ms-transform: scaleX(-1);
+  transform: scaleX(-1);
+}
+#remotes {
+  width: 100%;
+  height: 100%;
+  position: absolute;
+  top: 100px;
+  -webkit-perspective: 2000px;
+  -moz-perspective: 2000px;
+  z-index: 1;
+}
+#remotes video {
+  position: absolute;
+  left: 4000px;
+  height: 200px;
+  -moz-transition: all 1s;
+  -moz-box-sizing: border-box;
+  -webkit-transition: all 1s;
+  -webkit-box-sizing: border-box;
+}
+#ad {
+  cursor: pointer;
+}
+a#ad:link,
+a#ad:visited {
+  color: #555;
+  text-decoration: none;
+  font-weight: 300;
+  font-size: 16px;
+  border-top: 1px solid #f0f0f0;
+  background-color: #fafafa;
+  width: 100%;
+  position: fixed;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  padding: 0px;
+  line-height: 2.5;
+  text-align: left;
+  height: 40px;
+}
+a#ad:link:before,
+a#ad:visited:before {
+  content: "";
+  display: inline-block;
+  float: left;
+  background-image: url("https://andbang.com/images/AndBangHeader.png");
+  width: 35px;
+  height: 35px;
+  background-size: 40px;
+  background-repeat: no-repeat;
+  margin-right: 10px;
+}
+#andyet {
+  position: fixed;
+  bottom: 10px;
+  right: 10px;
+  z-index: 10;
+}
+#game {
+  display: none;
+}
+#game.gameActive {
+  display: block;
+}
+#game,
+#viewport {
+  position: fixed;
+  display: block;
+  z-index: -1;
+  height: calc(100% - 20px);
+  height: -moz-calc(100% - 20px);
+  width: 100%;
+  top: 0;
+}
+#instructions {
+  display: none;
+  background-color: rgba(0,0,0,0.02);
+  border: 1px solid #eee;
+  padding: 10px;
+  top: 150px;
+  left: 20px;
+  width: 230px;
+  text-align: left;
+}
+#instructions h3 {
+  font-size: 16px;
+  color: #333;
+  font-weight: bold;
+  text-align: left;
+  margin-bottom: 20px;
+}
+#instructions p {
+  font-size: 13px;
+  margin: 10px 0 0 0;
+}
+button {
+  border: none;
+  height: 40px;
+  padding: 0 1em;
+  position: relative;
+  border-radius: 3px;
+  font-weight: bold;
+  color: #fff;
+  line-height: 40px;
+  background: #00aeef;
+}
+button#pauseVideo {
+  background: #ec008c;
+}
+button#pauseVideo:hover {
+  background: #d4007e;
+}
+button:hover {
+  background: #009dd7;
+}
+button .ss-icon {
+  font-size: 12px;
+  position: absolute;
+  top: 3px;
+  left: 12px;
+}

public/style.styl

@@ -0,0 +1,351 @@
+// style.styl
+@import _define
+@import _reset
+
+// variables
+accentColor = #ec008c
+baseColor = #00aeef
+
+*
+  -webkit-box-sizing: border-box
+  -moz-box-sizing: border-box
+
+::-webkit-input-placeholder
+  color: #aaa
+  font-weight: 200
+
+:-moz-placeholder
+  color: #aaa
+  font-weight: 200
+
+::-moz-placeholder 
+  color: #aaa
+  font-weight: 200
+
+body
+  helv()
+  background: url(http://andyet.com/images/header.png)
+  background-position: top center
+  background-repeat: no-repeat
+  overflow: hidden
+
+  .loggedIn
+    display: none
+
+  &.authed
+    .loggedOut
+      display: none
+    .loggedIn
+      display: block
+
+#logo
+  height: 64px
+  display: block
+  margin-bottom: 80px
+  position: relative
+  top: 60px
+
+  img
+    position: absolute
+    top: 0 
+    left: 50%
+    margin-left: -240px
+
+h2
+  font-weight: 600
+  color: #333
+  font-size: 40px
+  text-align: center
+  margin: 0
+
+h3
+  display: none
+
+header
+  position: absolute
+  top: 20px
+  right: 20px
+
+.page.talk
+  .controls
+    top: 75px
+    position: absolute
+    left: 20px
+    top: 100px
+    margin: 0 auto
+    z-index: 10
+    button
+      padding: 0 1em 0 2em
+      height: 35px
+      line-height: 31px 
+
+    #shareScreen
+      .unshare
+        display: none
+      &.sharingScreen
+        background: accentColor
+        .unshare
+          display: block
+        .share
+          display: none
+
+    #muteMicrophone
+      .unmute
+        display: none
+      &.muted
+        background: accentColor
+        .unmute
+          display: block
+        .mute
+          display: none
+
+    #pauseVideo
+      .resume
+        display: none
+      &.paused
+        .resume
+          display: block
+        .pause
+          display: none
+
+
+  .lockControls
+    display: inline
+    .unlock
+      display: none
+
+    &.roomLocked
+      .unlock
+        display: inline
+      .lock
+        display: none
+
+  h2 
+    position: relative
+    margin: 0
+    line-height: 1
+    top: -20px
+
+    svg
+      // green fill: #72B14D  
+      fill: #12ACEF
+
+  #logo
+    width: 100px
+    margin: 0 auto
+    position: fixed
+    left: 20px
+    top: 20px
+    overflow: hidden
+
+    img
+      left: 240px
+
+  section
+    padding: 0
+
+  h3
+    display: block
+    font-size: 13px
+    font-weight: normal
+    margin: 0
+    position: relative
+    top: -20px
+    text-align: center
+    color: #aaa
+
+    svg
+      position: relative
+      top: 3px
+      fill: #aaa
+
+a:link, a:visited
+  color: #12ACEF
+
+.desc
+  text-align: center
+  font-size: 18px
+  margin-top: 0
+  margin-bottom: 40px
+  color: #555
+  font-weight: 200
+
+.about
+  text-align: center
+  width: 450px
+  font-size: 13px
+  margin: 80px auto
+  color: #444
+  position: relative
+  z-index: 10
+
+footer
+  text-align: center
+  color: #777
+  font-size: 14px
+  position: fixed
+  bottom: 10px
+  margin: 0
+  left: 50%
+  width: 500px
+  margin-left: -250px
+  z-index: 100
+
+section
+  margin: 0 auto
+  width: 100%
+  padding: 20px 0
+
+#createRoom
+  margin: 0 auto
+  width: 400px
+  position: relative
+  z-index: 10
+
+  input
+    width: 380px
+    height: 40px
+    border: 0px none
+    display: inline-block
+    font-size: 16px
+    padding: 0 10px
+    background: #eaebeb
+    border-radius: 3px
+    font-weight: 100
+    line-height: 40px
+    color: #333
+    font-weight: bold 
+    margin: 0 0 10px 0
+    text-align: left
+
+  button
+    position: relative
+    width: 380px
+
+#localVideo
+  position: fixed
+  top: 15px
+  right: 15px  
+  border: 5px solid #777
+  outline: 0px
+  height: 70px
+  -o-transform: scaleX(-1)
+  transform: scaleX(-1)
+
+#remotes
+  width: 100%
+  height: 100%
+  position: absolute
+  top: 100px
+  -webkit-perspective: 2000px
+  -moz-perspective: 2000px
+  z-index: 1
+
+  video 
+    position: absolute
+    left: 4000px
+    height: 200px
+    -moz-transition: all 1s
+    -moz-box-sizing: border-box
+    -webkit-transition: all 1s
+    -webkit-box-sizing: border-box
+
+#ad
+  cursor: pointer
+
+a#ad:link, a#ad:visited
+  color: #555
+  text-decoration: none
+  font-weight: 300
+  font-size: 16px
+  border-top: 1px solid #f0f0f0
+  background-color: #fafafa
+  width: 100%
+  position: fixed
+  left: 0
+  right: 0
+  bottom: 0
+  padding: 0px
+  line-height: 2.5
+  text-align: left
+  height: 40px
+
+  &:before
+    content: ""
+    display: inline-block
+    float: left
+    background-image: url(https://andbang.com/images/AndBangHeader.png)
+    width: 35px
+    height: 35px
+    background-size: 40px
+    background-repeat: no-repeat
+    margin-right: 10px
+
+#andyet
+  position: fixed
+  bottom: 10px
+  right: 10px
+  z-index: 10
+
+#game
+  display: none
+
+#game.gameActive
+  display: block
+
+#game, #viewport
+  position: fixed
+  display: block
+  z-index: -1
+  height: calc(100% \- 20px)
+  height: -moz-calc(100% \- 20px)
+  width: 100%
+  top: 0
+
+
+#instructions
+  display: none
+  background-color: rgba(0,0,0,.02)
+  border: 1px solid #eee
+  padding: 10px  
+  top: 150px
+  left: 20px
+  width: 230px
+  text-align: left
+
+  h3
+    font-size: 16px
+    color: #333
+    font-weight: bold
+    text-align: left
+    margin-bottom: 20px
+
+  p
+    font-size: 13px
+    margin: 10px 0 0 0
+
+
+button 
+  border: none
+  height: 40px
+  padding: 0 1em
+  position: relative
+  border-radius: 3px
+  font-weight: bold
+  color: white
+  line-height: 40px
+  background: baseColor
+
+  &#pauseVideo
+    background: accentColor
+    &:hover 
+      background: darken(accentColor, 10%)
+
+  &:hover
+    background: darken(baseColor, 10%)
+
+  .ss-icon
+    font-size: 12px
+    position: absolute
+    top: 3px
+    left: 12px

public/ui.css

@@ -0,0 +1,107 @@
+#overlay {
+  position: fixed;
+  top: 0;
+  left: 0;
+  opacity: 1;
+  width: 100%;
+  height: 100%;
+  background: rgba(0,0,0,.75);
+  transition: opacity 300ms;
+  z-index: 500;
+}
+
+#overlay.hide {
+  pointer-events: none;
+  opacity: 0;
+}#dialog {
+  position: fixed;
+  left: 50%;
+  top: 150px;
+  max-width: 600px;
+  min-width: 250px;
+  border: 1px solid #eee;
+  background: white;
+  z-index: 1000;
+}
+
+#dialog .content {
+  padding: 15px 20px;
+}
+
+#dialog h1 {
+  margin: 0 0 5px 0;
+  font-size: 16px;
+  font-weight: normal;
+}
+
+#dialog p {
+  margin: 0;
+  padding: 0;
+  font-size: .9em;
+}
+
+#dialog.modal {
+  box-shadow: 0 1px 8px 0 black;
+}
+
+/* close */
+
+#dialog .close {
+  position: absolute;
+  top: 3px;
+  right: 10px;
+  text-decoration: none;
+  color: #888;
+  font-size: 16px;
+  font-weight: bold;
+  display: none;
+}
+
+#dialog.closable .close {
+  display: block;
+}
+
+#dialog .close:hover {
+  color: black;
+}
+
+#dialog .close:active {
+  margin-top: 1px;
+}
+
+/* slide */
+
+#dialog.slide {
+  -webkit-transition: opacity 300ms, top 300ms;
+  -moz-transition: opacity 300ms, top 300ms;
+}
+
+#dialog.slide.hide {
+  opacity: 0;
+  top: -500px;
+}
+
+/* fade */
+
+#dialog.fade {
+  -webkit-transition: opacity 300ms;
+  -moz-transition: opacity 300ms;
+}
+
+#dialog.fade.hide {
+  opacity: 0;
+}
+
+/* scale */
+
+#dialog.scale {
+  -webkit-transition: -webkit-transform 300ms;
+  -moz-transition: -moz-transform 300ms;
+  -webkit-transform: scale(1);
+  -moz-transform: scale(1);
+}
+
+#dialog.scale.hide {
+  -webkit-transform: scale(0);
+  -moz-transform: scale(0);
+}

server.js

@@ -0,0 +1,74 @@
+/*global console*/
+var fs = require('fs'),
+    privateKey = fs.readFileSync('fakekeys/privatekey.pem').toString(),
+    certificate = fs.readFileSync('fakekeys/certificate.pem').toString(),
+    express = require('express'),
+    app = express(),
+    server = require('https').createServer({key: privateKey, cert: certificate}, app),
+    connect = require('connect'),
+    RedisStore = require('connect-redis')(connect),
+    https = require('https'),
+    andbangAuth = require('andbang-express-auth'),
+    Moonboots = require('moonboots'),
+    config = require('getconfig'),
+    yetify = require('yetify'),
+    semiStatic = require('semi-static'),
+    uuid = require('node-uuid');
+
+
+app.use(express.static(__dirname + '/public'));
+app.enable('trust proxy');
+app.set('view engine', 'jade');
+app.use(express.bodyParser());
+app.use(express.cookieParser());
+app.use(express.session({
+    proxy: true,
+    secret: config.session.secret,
+    store: new RedisStore({
+        host: config.session.host,
+        port: config.session.port,
+        db: config.session.db
+    }),
+    cookie: {
+        maxAge: 1000 * 60 * 60 * 24 * 90, // 90 days
+        secure: config.session.secure
+    },
+    key: 'c.io'
+}));
+app.use(andbangAuth.middleware({
+    app: app,
+    clientId: config.auth.id,
+    clientSecret: config.auth.secret,
+    defaultRedirect: '/',
+    local: config.isDev
+}));
+
+var clientApp = new Moonboots({
+    fileName: 'conversat.io',
+    dir: __dirname + '/clientapp',
+    developmentMode: config.isDev,
+    libraries: [
+        'system-requirements.js',
+        'mixpanel.js',
+        'check-system.js',
+        'jquery.js',
+        'jquery.slidingmessage.js',
+        'ui.js',
+        'socket.io.js',
+        'init.js'
+    ],
+    server: app
+});
+
+// the help mini-site
+app.get('/help*', semiStatic({
+    folderPath: __dirname + '/templates/help-site',
+    root: '/help'
+}));
+
+
+// serves app on every other url
+app.get('*', clientApp.html());
+
+server.listen(config.http.port);
+console.log('conversat.io, by ' + yetify.logo() + ' running at: ' + config.http.baseUrl);

templates/help-site/index.jade

@@ -0,0 +1,25 @@
+!!! 5
+html
+    head
+    body
+        h1 conversat.io help
+
+        p conversat.io uses cutting edge web technology called WebRTC that is only available in <a href="http://chrome.com">chrome</a> and <a href="https://nightly.mozilla.org/">firefox 24+</a>.
+
+        h2#screensharing Screensharing
+
+        p Screensharing is currently only available in chrome and requires that you change a setting. If you're in chrome you can click right here:  
+
+        ol
+            li download and open chrome.
+            li go to <a href="chrome://flags">chrome://flags</a> (click that link, or type it into the url bar.
+            li Scroll all the way to the bottom. And make sure that "enable screen capture support in getUserMedia()" is enabled: 
+                p <img src="http://f.cl.ly/items/1v1x463V180530472p45/Screen%20Shot%202013-05-14%20at%2010.25.57%20AM.png" alt="screensharing setting screenshot" />
+            li click the "relaunch now" button at the bottom of the page.
+            li you should now be able to share your screen. 
+
+        p note: you won't have to do these steps in a bit, when Google considers this feature stable enough. But hey, we can do screensharing now, so why not!? :)
+
+        h2#feedback We'd love to hear from you
+
+        p We'd love to hear from you: <a href="mailto:support@conversat.io">support@conversat.io</a>.

templates/includes/link.svg

@@ -0,0 +1,38 @@
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+     width="16px" height="16px" viewBox="0 0 50 50">
+<g>
+    <path d="M46.715,28.074c-0.012-0.022-0.027-0.044-0.039-0.067c-0.439-0.807-0.982-1.538-1.615-2.17l-8.635-8.634
+        c-0.035-0.036-0.068-0.066-0.098-0.092c-1.102-1.067-2.439-1.85-3.893-2.282c1.676,1.754,2.785,3.946,3.217,6.358
+        c0.127,0.723,0.193,1.462,0.193,2.197c0,0.293-0.014,0.602-0.039,0.943l5.381,5.382c0.469,0.469,0.816,1.058,1.002,1.706
+        c0.109,0.372,0.162,0.759,0.162,1.151c0,0.434-0.064,0.862-0.197,1.273c-0.197,0.618-0.521,1.157-0.967,1.602l-3.508,3.508
+        c-0.752,0.752-1.77,1.166-2.865,1.166s-2.115-0.414-2.865-1.166l-3.346-3.344l-2.164-2.166l-3.125-3.124
+        c-0.311-0.311-0.569-0.678-0.765-1.092c-0.26-0.546-0.397-1.159-0.397-1.772c0-0.414,0.061-0.824,0.18-1.217
+        c0.011-0.035,0.024-0.07,0.038-0.105l0.021-0.057c0.051-0.144,0.098-0.261,0.148-0.368c0.029-0.062,0.06-0.123,0.092-0.184
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+</svg>

templates/join.jade

@@ -0,0 +1,64 @@
+extends layout
+
+block content
+      
+        a(href='/')
+          h1#logo
+            img(src='conversatio.png', height='64', width='480', alt='Conversat.io')
+        h2
+          span#title Get a room.
+        p.desc Video chat with up to 6 people.
+        
+
+        h3#roomLink
+          | include includes/link.svg
+          span#subTitle
+        form#createRoom
+          input#sessionInput(placeholder='Name the conversation', autofocus='autofocus')
+          button(type='submit') Let’s go!
+        p.about
+          | Requires Chrome or Firefox Nightly with peer connection enabled.
+          br
+          | conversat.io uses
+          a(href='https://github.com/henrikjoreteg/SimpleWebRTC') the simple WebRTC library
+          | from
+          a(href='http://andyet.com') &yet
+          | and so can you.
+        video#localVideo
+        .controls
+          button#shareScreen
+            span.share
+              i.ss-icon windows
+              | Share screen
+            span.unshare
+              i.ss-icon windows
+              | Unshare screen
+          button#muteMicrophone
+            span.mute
+              i.ss-icon volume
+              | Mute
+            span.unmute
+              i.ss-icon volumehigh
+              | Unmute
+          button#pauseVideo
+            span.pause
+              i.ss-icon pause
+              | Pause
+            span.resume
+              i.ss-icon play
+              | Resume
+        //
+           controls 
+        #remotes
+        #game
+          aside#instructions(style='position: absolute;')
+            h3 Play lander while you wait for people to join.
+            p Arrow keys control the ship
+            p
+              code r
+              | restarts
+            p
+              code x
+              | blows up your ship
+            p Have fun!
+          canvas#viewport

templates/layout.jade

@@ -0,0 +1,26 @@
+!!! 5
+html
+  head
+    title conversat.io
+    meta(charset='utf-8')
+    link(rel='stylesheet', href='style.css')
+    link(rel='stylesheet', href='fonts.css')
+    meta(name='google-site-verification', content='OEAv0Phoo4ZRGpC-GIVt-WpSDQU8wtQerm6s9PToCVY')
+    script(src='//ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js')
+    script(src='socket.io.js')
+    script(src='fluidgrid.js')
+    script(src='sound-effect-manager.js')
+    script(src='jquery.slidingmessage.js')
+    script(src='retina.js')
+    script(src='simplewebrtc.js')
+    script(src='conversat.io.js')
+    script(async='async', src='awesome-andbang-ad.js')
+    script(async='async', src='metrics.js')
+  body
+    .wrap
+      section
+        block content
+      footer
+        a#ad(href='http://andbang.com', target='_blank')
+        a#andyet(href='http://andyet.com', target='_blank')
+          img(src='http://andyet.com/images/logo.png', width='40')