//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
//
// Purpose: 
//
//=============================================================================//

#ifndef REPLAYDIRECTOR_H
#define REPLAYDIRECTOR_H

#ifdef _WIN32
#pragma once
#endif

#include "GameEventListener.h"
#include <igamesystem.h>
#include <ireplaydirector.h>
#include <ireplay.h>
#include <utlrbtree.h>

#define	REPLAY_MIN_DIRECTOR_DELAY		10	// minimum delay if director is enabled
#define	REPLAY_MAX_DELAY				120	// maximum delay


#define MAX_NUM_CAMERAS				64	// support up to 64 fixed cameras per level

#define MIN_SHOT_LENGTH				4.0f  // minimum time of a cut (seconds)
#define MAX_SHOT_LENGTH				8.0f  // maximum time of a cut (seconds)
#define DEF_SHOT_LENGTH				6.0f  // average time of a cut (seconds)

class CReplayGameEvent
{
public:
		int			m_Tick;		// tick of this command
		int			m_Priority; // game event priority
		IGameEvent	*m_Event;	// IGameEvent
};

class CReplayDirector : public CGameEventListener, public CBaseGameSystemPerFrame, public IReplayDirector
{
public:
	DECLARE_CLASS_NOBASE( CReplayDirector );

	virtual char const *Name() { return "CReplayDirector"; }

	CReplayDirector();
	virtual ~CReplayDirector();

	virtual void SetReplayServer( IReplayServer *replay ); // give the director an Replay interface 
	IReplayServer* GetReplayServer( void ); 
	int		GetDirectorTick( void );	// get current broadcast tick from director
	int		GetPVSEntity( void ); // get current view entity (PVS)
	Vector	GetPVSOrigin( void ); // get current PVS origin, if PVS entity is 0
	float	GetDelay( void ); // returns current delay in seconds
	bool	IsActive( void );

	virtual const char** GetModEvents(); // returns list of event names forwarded to Replay clients

	void	BuildCameraList( void );
		

public: // IGameEventListener Interface
	virtual void	FireGameEvent( IGameEvent * event );
	
public: // CBaseGameSystem overrides

	virtual bool	Init();
	virtual void	Shutdown();
	virtual void	FrameUpdatePostEntityThink();
	virtual void	LevelInitPostEntity();
	virtual char	*GetFixedCameraEntityName( void ) { return "point_viewcontrol"; }

			bool	SetCameraMan( int iPlayerIndex );
			int		GetCameraMan() { return m_iCameraManIndex; }


protected:

	virtual void	StartNewShot();	
	virtual void	StartRandomShot();
	virtual void	StartDelayMessage();
	virtual void	StartBestFixedCameraShot(bool bForce);
	virtual void	StartBestPlayerCameraShot();
	virtual void	StartFixedCameraShot(int iCamera, int iTarget);
	virtual void	StartChaseCameraShot(int iTarget1, int iTarget2, int distance, int phi, int theta, bool bInEye);
	virtual void	UpdateSettings();
	virtual void	AnalyzePlayers();
	virtual void 	AnalyzeCameras();
	virtual bool	StartCameraManShot();
	virtual void	StartInstantBroadcastShot();
	virtual void	FinishCameraManShot();
	virtual void	BuildActivePlayerList();
	virtual CReplayGameEvent *FindBestGameEvent();
	virtual void	CreateShotFromEvent( CReplayGameEvent *ge );

	int		FindFirstEvent( int tick ); // finds first event >= tick
	void	CheckHistory();
	void	RemoveEventsFromHistory(int tick); // removes all commands < tick, or all if tick -1
	
	IReplayServer	*m_pReplayServer;	// interface to servers Replay object
	float			m_fDelay;	// replay delay in seconds
	int				m_nBroadcastTick; // world time that is currently "on the air"
	int				m_iPVSEntity;	// entity for PVS center
	Vector			m_vPVSOrigin;	// PVS origin if PVS entity is 0
	int				m_iCameraMan;	//  >0 if current view entity is a cameraman
	CBasePlayer		*m_pReplayClient; // the Replay fake client
	int				m_nNextShotTick;	// time for the next scene cut
	int				m_iLastPlayer;		// last player in random rotation

	int				m_nNextAnalyzeTick;	
		
	int				m_nNumFixedCameras;	//number of cameras in current map
	CBaseEntity		*m_pFixedCameras[MAX_NUM_CAMERAS]; // fixed cameras (point_viewcontrol)
	
	int				m_nNumActivePlayers;	//number of cameras in current map
	CBasePlayer		*m_pActivePlayers[MAX_PLAYERS]; // fixed cameras (point_viewcontrol)
	int				m_iCameraManIndex;		// entity index of current camera man or 0
	
	CUtlRBTree<CReplayGameEvent>	m_EventHistory;
};

extern IGameSystem* ReplayDirectorSystem();
extern CReplayDirector* ReplayDirector();

#endif // REPLAYDIRECTOR_H