mirror of
https://github.com/moparisthebest/minetest
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73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef EVENT_HEADER
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#define EVENT_HEADER
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class MtEvent
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{
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public:
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virtual ~MtEvent(){};
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//virtual MtEvent* clone(){ return new IEvent; }
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virtual const char* getType() const = 0;
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MtEvent* checkIs(const std::string &type)
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{
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if(type == getType())
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return this;
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return NULL;
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}
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};
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// An event with no parameters and customizable name
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class SimpleTriggerEvent: public MtEvent
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{
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const char *type;
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public:
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SimpleTriggerEvent(const char *type):
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type(type)
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{}
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const char* getType() const
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{return type;}
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};
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class MtEventReceiver
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{
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public:
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virtual ~MtEventReceiver(){};
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virtual void onEvent(MtEvent *e) = 0;
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};
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typedef void (*event_receive_func)(MtEvent *e, void *data);
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class MtEventManager
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{
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public:
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virtual ~MtEventManager(){};
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virtual void put(MtEvent *e) = 0;
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virtual void reg(const char *type, event_receive_func f, void *data) = 0;
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// If data==NULL, every occurence of f is deregistered.
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virtual void dereg(const char *type, event_receive_func f, void *data) = 0;
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virtual void reg(MtEventReceiver *r, const char *type) = 0;
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virtual void dereg(MtEventReceiver *r, const char *type) = 0;
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};
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#endif
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