//====== Copyright © 1996-2003, Valve Corporation, All rights reserved. =======
//
// Purpose: Entity to control screen overlays on a player
//
//=============================================================================

#include "cbase.h"
#include "shareddefs.h"

// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"

#define ENV_PROJECTEDTEXTURE_STARTON			(1<<0)

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
class CEnvProjectedTexture : public CPointEntity
{
	DECLARE_CLASS( CEnvProjectedTexture, CPointEntity );
public:
	DECLARE_DATADESC();
	DECLARE_SERVERCLASS();

	CEnvProjectedTexture();

	// Always transmit to clients
	virtual int UpdateTransmitState();
	virtual void Activate( void );

	void InputTurnOn( inputdata_t &inputdata );
	void InputTurnOff( inputdata_t &inputdata );
	void InputSetFOV( inputdata_t &inputdata );
	void InitialThink( void );

	CNetworkHandle( CBaseEntity, m_hTargetEntity );
	
private:

	CNetworkVar( bool, m_bState );
	CNetworkVar( float, m_flLightFOV );
	CNetworkVar( bool, m_bEnableShadows );
	CNetworkVar( bool, m_bLightOnlyTarget );
	CNetworkVar( bool, m_bLightWorld );
	CNetworkVar( bool, m_bCameraSpace );
	CNetworkVar( color32, m_cLightColor );
};

LINK_ENTITY_TO_CLASS( env_projectedtexture, CEnvProjectedTexture );

BEGIN_DATADESC( CEnvProjectedTexture )
	DEFINE_FIELD( m_hTargetEntity, FIELD_EHANDLE ),
	DEFINE_FIELD( m_bState, FIELD_BOOLEAN ),
	DEFINE_KEYFIELD( m_flLightFOV, FIELD_FLOAT, "lightfov" ),
	DEFINE_KEYFIELD( m_bEnableShadows, FIELD_BOOLEAN, "enableshadows" ),
	DEFINE_KEYFIELD( m_bLightOnlyTarget, FIELD_BOOLEAN, "lightonlytarget" ),
	DEFINE_KEYFIELD( m_bLightWorld, FIELD_BOOLEAN, "lightworld" ),
	DEFINE_KEYFIELD( m_bCameraSpace, FIELD_BOOLEAN, "cameraspace" ),
	DEFINE_KEYFIELD( m_cLightColor, FIELD_COLOR32, "lightcolor" ),
	DEFINE_INPUTFUNC( FIELD_VOID, "TurnOn", InputTurnOn ),
	DEFINE_INPUTFUNC( FIELD_VOID, "TurnOff", InputTurnOff ),
	DEFINE_INPUTFUNC( FIELD_FLOAT, "SetFOV", InputSetFOV ),
	DEFINE_THINKFUNC( InitialThink ),
END_DATADESC()

IMPLEMENT_SERVERCLASS_ST( CEnvProjectedTexture, DT_EnvProjectedTexture )
	SendPropEHandle( SENDINFO( m_hTargetEntity ) ),
	SendPropBool( SENDINFO( m_bState ) ),
	SendPropFloat( SENDINFO( m_flLightFOV ) ),
	SendPropBool( SENDINFO( m_bEnableShadows ) ),
	SendPropBool( SENDINFO( m_bLightOnlyTarget ) ),
	SendPropBool( SENDINFO( m_bLightWorld ) ),
	SendPropBool( SENDINFO( m_bCameraSpace ) ),
	SendPropInt( SENDINFO( m_cLightColor ), 32, SPROP_UNSIGNED ),
END_SEND_TABLE()

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
CEnvProjectedTexture::CEnvProjectedTexture( void )
{
	m_bState = false;
	m_flLightFOV = 45.0f;
	m_bEnableShadows = false;
	m_bLightOnlyTarget = false;
	m_bLightWorld = true;
	m_bCameraSpace = true;

	color32 color;
	color.r =  255;
	color.g =  255;
	color.b =  255;
	color.a =  0;
	m_cLightColor.Set( color );
}

void CEnvProjectedTexture::InputTurnOn( inputdata_t &inputdata )
{
	m_bState = true;
}

void CEnvProjectedTexture::InputTurnOff( inputdata_t &inputdata )
{
	m_bState = false;
}

void CEnvProjectedTexture::InputSetFOV( inputdata_t &inputdata )
{
	m_flLightFOV = inputdata.value.Float();
}

void CEnvProjectedTexture::Activate( void )
{
	if ( GetSpawnFlags() & ENV_PROJECTEDTEXTURE_STARTON )
	{
		m_bState = true;
	}

	SetThink( &CEnvProjectedTexture::InitialThink );
	SetNextThink( gpGlobals->curtime + 0.1f );

	BaseClass::Activate();
}

void CEnvProjectedTexture::InitialThink( void )
{
	m_hTargetEntity = gEntList.FindEntityByName( NULL, m_target );
}

int CEnvProjectedTexture::UpdateTransmitState()
{
	return SetTransmitState( FL_EDICT_ALWAYS );
}