/*
================
idLight::Present
================
*/
void idLight::Present( void ) {
	// don't present to the renderer if the entity hasn't changed
	if ( !( thinkFlags & TH_UPDATEVISUALS ) ) {
		return;
	}

	// add the model
	idEntity::Present();

	// current transformation
	renderLight.axis	= localLightAxis * GetPhysics()->GetAxis();
	renderLight.origin  = GetPhysics()->GetOrigin() + GetPhysics()->GetAxis() * localLightOrigin;

	// reference the sound for shader synced effects
	if ( lightParent ) {
		renderLight.referenceSound = lightParent->GetSoundEmitter();
		renderEntity.referenceSound = lightParent->GetSoundEmitter();
	}
	else {
		renderLight.referenceSound = refSound.referenceSound;
		renderEntity.referenceSound = refSound.referenceSound;
	}

	// update the renderLight and renderEntity to render the light and flare
	PresentLightDefChange();
	PresentModelDefChange();
}

/*
================
idLight::SetLightParm
================
*/
void idLight::SetLightParm( int parmnum, float value ) {
	if( ( parmnum < 0 ) || ( parmnum >= MAX_ENTITY_SHADER_PARMS ) ) {
		gameLocal.Error( "shader parm index (%d) out of range", parmnum );
	}
	renderLight.shaderParms[ parmnum ] = value;
	PresentLightDefChange();
}

/*
================
idLight::SetRadiusXYZ
================
*/
void idLight::SetRadiusXYZ( float x, float y, float z )
{
    renderLight.lightRadius[0] = x;
    renderLight.lightRadius[1] = y;
    renderLight.lightRadius[2] = z;
    PresentLightDefChange();
}

/*
================
idLight::SetLightParms
================
*/
void idLight::SetLightParms( float parm0, float parm1, float parm2, float parm3 ) {
	renderLight.shaderParms[ SHADERPARM_RED ]		= parm0;
	renderLight.shaderParms[ SHADERPARM_GREEN ]		= parm1;
	renderLight.shaderParms[ SHADERPARM_BLUE ]		= parm2;
	renderLight.shaderParms[ SHADERPARM_ALPHA ]		= parm3;
	renderEntity.shaderParms[ SHADERPARM_RED ]		= parm0;
	renderEntity.shaderParms[ SHADERPARM_GREEN ]	= parm1;
	renderEntity.shaderParms[ SHADERPARM_BLUE ]		= parm2;
	renderEntity.shaderParms[ SHADERPARM_ALPHA ]	= parm3;
	PresentLightDefChange();
	PresentModelDefChange();
}

/*
================
idLight::SetLightLevel
================
*/
void idLight::SetLightLevel( void ) {
	idVec3	color;
	float	intensity;
	intensity = ( float )currentLevel / ( float )levels;
	color = baseColor * intensity;
	renderLight.shaderParms[ SHADERPARM_RED ]	= color[ 0 ];
	renderLight.shaderParms[ SHADERPARM_GREEN ]	= color[ 1 ];
	renderLight.shaderParms[ SHADERPARM_BLUE ]	= color[ 2 ];
	renderEntity.shaderParms[ SHADERPARM_RED ]	= color[ 0 ];
	renderEntity.shaderParms[ SHADERPARM_GREEN ] = color[ 1 ];
	renderEntity.shaderParms[ SHADERPARM_BLUE ]	= color[ 2 ];
	PresentLightDefChange();
	PresentModelDefChange();
}