/**

 * vim: set ts=4 :

 * =============================================================================

 * SourceMod

 * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.

 * =============================================================================

 *

 * This program is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, version 3.0, as published by the

 * Free Software Foundation.

 * 

 * 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, see <http://www.gnu.org/licenses/>.

 *

 * As a special exception, AlliedModders LLC gives you permission to link the

 * code of this program (as well as its derivative works) to "Half-Life 2," the

 * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software

 * by the Valve Corporation.  You must obey the GNU General Public License in

 * all respects for all other code used.  Additionally, AlliedModders LLC grants

 * this exception to all derivative works.  AlliedModders LLC defines further

 * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),

 * or <http://www.sourcemod.net/license.php>.

 *

 * Version: $Id$

 */

#ifndef _INCLUDE_SOURCEMOD_CTIMERSYS_H_

#define _INCLUDE_SOURCEMOD_CTIMERSYS_H_

#include "ShareSys.h"

#include <ITimerSystem.h>

#include <sh_stack.h>

#include <sh_list.h>

#include "sourcemm_api.h"

using namespace SourceHook;

using namespace SourceMod;

typedef List<ITimer *> TimerList;

typedef List<ITimer *>::iterator TimerIter;

class SourceMod::ITimer

{

public:

	void Initialize(ITimedEvent *pCallbacks, float fInterval, float fToExec, void *pData, int flags);

	ITimedEvent *m_Listener;

	void *m_pData;

	float m_Interval;

	double m_ToExec;

	int m_Flags;

	bool m_InExec;

	bool m_KillMe;

};

class TimerSystem : 

	public ITimerSystem,

	public SMGlobalClass

{

public:

	TimerSystem();

	~TimerSystem();

public: //SMGlobalClass

	void OnSourceModAllInitialized();

	void OnSourceModLevelEnd();

	void OnSourceModGameInitialized();

	void OnSourceModShutdown();

public: //ITimerSystem

	ITimer *CreateTimer(ITimedEvent *pCallbacks, float fInterval, void *pData, int flags);

	void KillTimer(ITimer *pTimer);

	void FireTimerOnce(ITimer *pTimer, bool delayExec=false);

	void MapTimeLeftChanged();

	IMapTimer *SetMapTimer(IMapTimer *pTimer);

	float GetTickedTime();

	void NotifyOfGameStart(float offset /* = 0.0f */);

	bool GetMapTimeLeft(float *pTime);

public:

	void RunFrame();

	void RemoveMapChangeTimers();

	void GameFrame(bool simulating);

	IMapTimer *GetMapTimer();

private:

	List<ITimer *> m_SingleTimers;

	List<ITimer *> m_LoopTimers;

	CStack<ITimer *> m_FreeTimers;

	IMapTimer *m_pMapTimer;

	/* This is stuff for our manual ticking escapades. */

	bool m_bHasMapTickedYet;	/** Has the map ticked yet? */

	bool m_bHasMapSimulatedYet;	/** Has the map simulated yet? */

	float m_fLastTickedTime;	/** Last time that the game currently gave 

									us while ticking.

									*/

	IForward *m_pOnGameFrame;

	IForward *m_pOnMapTimeLeftChanged;

};

time_t GetAdjustedTime(time_t *buf = NULL);

extern const double *g_pUniversalTime;

extern TimerSystem g_Timers;

extern int g_TimeLeftMode;

#endif //_INCLUDE_SOURCEMOD_CTIMERSYS_H_