minetest/src/genericobject.cpp

/*
Minetest-c55
Copyright (C) 2012 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "genericobject.h"
#include "utility.h"
#include <sstream>

std::string gob_cmd_set_properties(const ObjectProperties &prop)
{
	std::ostringstream os(std::ios::binary);
	writeU8(os, GENERIC_CMD_SET_PROPERTIES);
	writeS16(os, prop.hp_max);
	writeU8(os, prop.physical);
	writeF1000(os, prop.weight);
	writeV3F1000(os, prop.collisionbox.MinEdge);
	writeV3F1000(os, prop.collisionbox.MaxEdge);
	os<<serializeString(prop.visual);
	writeV2F1000(os, prop.visual_size);
	writeU16(os, prop.textures.size());
	for(u32 i=0; i<prop.textures.size(); i++){
		os<<serializeString(prop.textures[i]);
	}
	writeV2S16(os, prop.spritediv);
	writeV2S16(os, prop.initial_sprite_basepos);
	writeU8(os, prop.is_visible);
	writeU8(os, prop.makes_footstep_sound);
	return os.str();
}

ObjectProperties gob_read_set_properties(std::istream &is)
{
	ObjectProperties prop;
	prop.hp_max = readS16(is);
	prop.physical = readU8(is);
	prop.weight = readF1000(is);
	prop.collisionbox.MinEdge = readV3F1000(is);
	prop.collisionbox.MaxEdge = readV3F1000(is);
	prop.visual = deSerializeString(is);
	prop.visual_size = readV2F1000(is);
	prop.textures.clear();
	u32 texture_count = readU16(is);
	for(u32 i=0; i<texture_count; i++){
		prop.textures.push_back(deSerializeString(is));
	}
	prop.spritediv = readV2S16(is);
	prop.initial_sprite_basepos = readV2S16(is);
	prop.is_visible = readU8(is);
	prop.makes_footstep_sound = readU8(is);
	return prop;
}

std::string gob_cmd_update_position(
	v3f position,
	v3f velocity,
	v3f acceleration,
	f32 yaw,
	bool do_interpolate,
	bool is_movement_end,
	f32 update_interval
){
	std::ostringstream os(std::ios::binary);
	// command
	writeU8(os, GENERIC_CMD_UPDATE_POSITION);
	// pos
	writeV3F1000(os, position);
	// velocity
	writeV3F1000(os, velocity);
	// acceleration
	writeV3F1000(os, acceleration);
	// yaw
	writeF1000(os, yaw);
	// do_interpolate
	writeU8(os, do_interpolate);
	// is_end_position (for interpolation)
	writeU8(os, is_movement_end);
	// update_interval (for interpolation)
	writeF1000(os, update_interval);
	return os.str();
}

std::string gob_cmd_set_texture_mod(const std::string &mod)
{
	std::ostringstream os(std::ios::binary);
	// command 
	writeU8(os, GENERIC_CMD_SET_TEXTURE_MOD);
	// parameters
	os<<serializeString(mod);
	return os.str();
}

std::string gob_cmd_set_sprite(
	v2s16 p,
	u16 num_frames,
	f32 framelength,
	bool select_horiz_by_yawpitch
){
	std::ostringstream os(std::ios::binary);
	// command
	writeU8(os, GENERIC_CMD_SET_SPRITE);
	// parameters
	writeV2S16(os, p);
	writeU16(os, num_frames);
	writeF1000(os, framelength);
	writeU8(os, select_horiz_by_yawpitch);
	return os.str();
}

std::string gob_cmd_punched(s16 damage, s16 result_hp)
{
	std::ostringstream os(std::ios::binary);
	// command 
	writeU8(os, GENERIC_CMD_PUNCHED);
	// damage
	writeS16(os, damage);
	// result_hp
	writeS16(os, result_hp);
	return os.str();
}

std::string gob_cmd_update_armor_groups(const ItemGroupList &armor_groups)
{
	std::ostringstream os(std::ios::binary);
	writeU8(os, GENERIC_CMD_UPDATE_ARMOR_GROUPS);
	writeU16(os, armor_groups.size());
	for(ItemGroupList::const_iterator i = armor_groups.begin();
			i != armor_groups.end(); i++){
		os<<serializeString(i->first);
		writeS16(os, i->second);
	}
	return os.str();
}