ds@1952: /**
ds@1952:  * vim: set ts=4 :
ds@1952:  * =============================================================================
ds@1952:  * SourceMod
ds@1952:  * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
ds@1952:  * =============================================================================
ds@1952:  *
ds@1952:  * This program is free software; you can redistribute it and/or modify it under
ds@1952:  * the terms of the GNU General Public License, version 3.0, as published by the
ds@1952:  * Free Software Foundation.
ds@1952:  * 
ds@1952:  * This program is distributed in the hope that it will be useful, but WITHOUT
ds@1952:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
ds@1952:  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
ds@1952:  * details.
ds@1952:  *
ds@1952:  * You should have received a copy of the GNU General Public License along with
ds@1952:  * this program.  If not, see <http://www.gnu.org/licenses/>.
ds@1952:  *
ds@1952:  * As a special exception, AlliedModders LLC gives you permission to link the
ds@1952:  * code of this program (as well as its derivative works) to "Half-Life 2," the
ds@1952:  * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
ds@1952:  * by the Valve Corporation.  You must obey the GNU General Public License in
ds@1952:  * all respects for all other code used.  Additionally, AlliedModders LLC grants
ds@1952:  * this exception to all derivative works.  AlliedModders LLC defines further
ds@1952:  * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
ds@1952:  * or <http://www.sourcemod.net/license.php>.
ds@1952:  *
ds@1952:  * Version: $Id$
ds@1952:  */
ds@1952: 
ds@1952: #ifndef _INCLUDE_SOURCEMOD_EVENTMANAGER_H_
ds@1952: #define _INCLUDE_SOURCEMOD_EVENTMANAGER_H_
ds@1952: 
ds@1952: #include "sm_globals.h"
ds@1952: #include "sourcemm_api.h"
ds@1952: #include "sm_trie.h"
ds@1952: #include <sh_list.h>
ds@1952: #include <sh_stack.h>
ds@1952: #include <IHandleSys.h>
ds@1952: #include <IForwardSys.h>
ds@1952: #include <IPluginSys.h>
ds@1952: 
ds@1952: using namespace SourceHook;
ds@1952: 
ds@1952: struct EventInfo
ds@1952: {
ds@1952: 	IGameEvent *pEvent;
ds@1952: 	IdentityToken_t *pOwner;
ds@1952: };
ds@1952: 
ds@1952: struct EventHook
ds@1952: {
ds@1952: 	EventHook()
ds@1952: 	{
ds@1952: 		pPreHook = NULL;
ds@1952: 		pPostHook = NULL;
ds@1952: 		postCopy = false;
ds@1952: 		pEventCopy = NULL;
ds@1952: 		refCount = 0;
ds@1952: 	}
ds@1952: 	IChangeableForward *pPreHook;
ds@1952: 	IChangeableForward *pPostHook;
ds@1952: 	bool postCopy;
ds@1952: 	IGameEvent *pEventCopy;
ds@1952: 	unsigned int refCount;
ds@1952: };
ds@1952: 
ds@1952: enum EventHookMode
ds@1952: {
ds@1952: 	EventHookMode_Pre,
ds@1952: 	EventHookMode_Post,
ds@1952: 	EventHookMode_PostNoCopy
ds@1952: };
ds@1952: 
ds@1952: enum EventHookError
ds@1952: {
ds@1952: 	EventHookErr_Okay = 0,			/**< No error */
ds@1952: 	EventHookErr_InvalidEvent,		/**< Specified event does not exist */
ds@1952: 	EventHookErr_NotActive,			/**< Specified event has no active hook */
ds@1952: 	EventHookErr_InvalidCallback,	/**< Specified event does not fire specified callback */ 
ds@1952: };
ds@1952: 
ds@1952: class EventManager :
ds@1952: 	public SMGlobalClass,
ds@1952: 	public IHandleTypeDispatch,
ds@1952: 	public IPluginsListener,
ds@1952: 	public IGameEventListener2
ds@1952: {
ds@1952: public:
ds@1952: 	EventManager();
ds@1952: 	~EventManager();
ds@1952: public: // SMGlobalClass
ds@1952: 	void OnSourceModAllInitialized();
ds@1952: 	void OnSourceModShutdown();
ds@1952: public: // IHandleTypeDispatch
ds@1952: 	void OnHandleDestroy(HandleType_t type, void *object);
ds@1952: public: // IPluginsListener
ds@1952: 	void OnPluginUnloaded(IPlugin *plugin);
ds@1952: public: // IGameEventListener2
ds@1952: 	void FireGameEvent(IGameEvent *pEvent);
ds@1952: public:
ds@1952: 	/**
ds@1952: 	 * Get the 'GameEvent' handle type ID.
ds@1952: 	 */
ds@1952: 	inline HandleType_t GetHandleType()
ds@1952: 	{
ds@1952: 		return m_EventType;
ds@1952: 	}
ds@1952: public:
ds@1952: 	EventHookError HookEvent(const char *name, IPluginFunction *pFunction, EventHookMode mode=EventHookMode_Post);
ds@1952: 	EventHookError UnhookEvent(const char *name, IPluginFunction *pFunction, EventHookMode mode=EventHookMode_Post);
ds@1952: 	EventInfo *CreateEvent(IPluginContext *pContext, const char *name, bool force=false);
ds@1952: 	void FireEvent(EventInfo *pInfo, bool bDontBroadcast=false);
ds@1952: 	void CancelCreatedEvent(EventInfo *pInfo);
ds@1952: private: // IGameEventManager2 hooks
ds@1952: 	bool OnFireEvent(IGameEvent *pEvent, bool bDontBroadcast);
ds@1952: 	bool OnFireEvent_Post(IGameEvent *pEvent, bool bDontBroadcast);
ds@1952: private:
ds@1952: 	HandleType_t m_EventType;
ds@1952: 	Trie *m_EventHooks;
ds@1952: 	CStack<EventInfo *> m_FreeEvents;
ds@1952: 	CStack<const char *> m_EventNames;
ds@1952: };
ds@1952: 
ds@1952: extern EventManager g_EventManager;
ds@1952: 
ds@1952: #endif // _INCLUDE_SOURCEMOD_EVENTMANAGER_H_