Method DoSpawn

trinity/Particle/Tr2StaticEmitter.cpp:96–265

-------------------------------------------------------------------------------------- Description: Spawns particles from geometry resource if resource is loaded. --------------------------------------------------------------------------------------

//   Spawns particles from geometry resource if resource is loaded.
// --------------------------------------------------------------------------------------
void Tr2StaticEmitter::DoSpawn()
{
	CCP_STATS_ZONE( __FUNCTION__ );

	auto createDeclarationMap = []( const Tr2VertexDefinition& elements, const Tr2ParticleElementDataMap& particleElements, const std::string& geometryResourcePath, std::vector<DeclarationMapping>& geometryDeclarationMap ) -> bool {
		geometryDeclarationMap.clear();
		for( auto i = particleElements.begin(); i != particleElements.end(); ++i )
		{
			bool found = false;
			for( const auto& item : elements.m_items )
			{
				unsigned usageIndex = 0;
				if( i->first.m_type == Tr2ParticleElementDeclarationName::CUSTOM )
				{
					usageIndex = i->second.m_usageIndex;
				}
				if( item.m_usage == i->first.GetD3DUsage() && item.m_usageIndex == usageIndex )
				{
					DeclarationMapping mapping;
					mapping.inOffset = item.m_offset;
					mapping.buffer = i->second.m_bufferType;
					mapping.offset = i->second.m_offset;
					mapping.length = i->second.m_dimension;
					mapping.isEmpty = false;

					if( ( item.m_dataType & elements.DT_TYPE_MASK ) == elements.DT_FLOAT32 )
					{
						mapping.isFloat16 = false;
					}
					else if( ( item.m_dataType & elements.DT_TYPE_MASK ) == elements.DT_FLOAT16 )
					{
						mapping.isFloat16 = true;
					}
					else
					{
						CCP_LOGERR( "Incompatible type for particle elements \"%s\" in Tr2StaticEmitter geometry %s",
									i->first.GetName().c_str(),
									geometryResourcePath.c_str() );
						return false;
					}
					geometryDeclarationMap.push_back( mapping );
					found = true;
					break;
				}
			}
			if( !found )
			{
				DeclarationMapping mapping;
				mapping.inOffset = 0;
				mapping.buffer = i->second.m_bufferType;
				mapping.offset = i->second.m_offset;
				mapping.length = i->second.m_dimension;
				mapping.isEmpty = true;
				mapping.isFloat16 = false;
				geometryDeclarationMap.push_back( mapping );
				CCP_LOG( "No data for particle elements \"%s\" in Tr2StaticEmitter geometry %s - filling with zeroes",
						 i->first.GetName().c_str(),
						 geometryResourcePath.c_str() );