Method InitializeAmbientEffect

trinity/Eve/Turret/EveTurretSet.cpp:394–456

-------------------------------------------------------------------------------- Description: Sets up the attached ambient effect. The ambient effect will be distributed across the turret locators via a EveChildInstanceContainer --------------------------------------------------------------------------------

//   EveChildInstanceContainer
// --------------------------------------------------------------------------------
void EveTurretSet::InitializeAmbientEffect()
{
	auto registry = GetComponentRegistry();
	if( EveEntityPtr entity = BlueCastPtr( m_generatedDistributedAmbientEffect ) )
	{
		entity->UnRegister( registry );
	}
	m_generatedDistributedAmbientEffect = nullptr;

	if( nullptr == m_ambientEffect )
	{
		return;
	}

	m_ambientOffsetMatrix = IdentityMatrix();
	if( m_ambientEffectEditingMode && !m_singleTurrets.empty() )
	{
		auto& firstTurret = m_singleTurrets[0];
		// calculate the offset to place the ambient effect, if we are in editing mode so we can see the effect on the first turret
		m_ambientOffsetMatrix = firstTurret.localMatrix;
	}

	m_generatedDistributedAmbientEffect.CreateInstance();
	m_generatedDistributedAmbientEffect->SetSourceEffect( m_ambientEffect );

	for( auto it = m_singleTurrets.begin(); it != m_singleTurrets.end(); ++it )
	{
		auto& turret = *it;
		// Add the instance to the generated effect
		// Note that we don't want this to be attached to a bone
		m_generatedDistributedAmbientEffect->AddInstanceTransform( Vector3( 1, 1, 1 ), turret.localQuaternion, turret.localPosition.GetXYZ() );
	}

	// This will either return the source or the generated effect
	auto ambientEffect = GetAmbientEffectOrGeneratedEffect();

	if( m_ambientEffectEditingMode )
	{
		if( EveEntityPtr entity = BlueCastPtr( m_ambientEffect ) )
		{
			entity->Register( registry );
		}
	}
	else
	{
		if( EveEntityPtr entity = BlueCastPtr( m_generatedDistributedAmbientEffect ) )
		{
			entity->Register( registry );
		}
	}

	switch( m_state )
	{
	case STATE_FIRING:
		ambientEffect->SetControllerVariable( "TurretState", float( STATE_TARGETING ) );
		SetAmbientEffectControllerVariableOnInstance( m_activeTurret, "TurretState", float( m_state ) );
		break;
	default: