Function PySetElementLayout

trinity/Tr2RuntimeInstanceData_Blue.cpp:11–75

#if BLUE_WITH_PYTHON
static PyObject* PySetElementLayout( PyObject* self, PyObject* args )
{
	Tr2RuntimeInstanceData* pThis = BluePythonCast<Tr2RuntimeInstanceData*>( self );

	PyObject* pyDecl;
	if( !PyArg_ParseTuple( args, "O!", &PyList_Type, &pyDecl ) )
	{
		return nullptr;
	}

	Tr2VertexDefinition def;
	for( int i = 0; i < PyList_GET_SIZE( pyDecl ); ++i )
	{
		PyObject* el = PyList_GetItem( pyDecl, i );
		if( !PyTuple_Check( el ) || PyTuple_GET_SIZE( el ) != 3 )
		{
			PyErr_SetString( PyExc_TypeError, "Argument 1 needs to be a list of 3-element tuples of numbers" );
			return nullptr;
		}
		PyObject* pyUsage = PyTuple_GetItem( el, 0 );
		if( !PyNumber_Check( pyUsage ) )
		{
			PyErr_SetString( PyExc_TypeError, "Argument 1 needs to be a list of 3-element tuples of numbers" );
			return nullptr;
		}
		int usage = int( PyNumber_AsSsize_t( pyUsage, nullptr ) );
		if( usage < 0 || usage > Tr2ParticleElementDeclarationName::CUSTOM )
		{
			PyErr_SetString( PyExc_TypeError, "Invalid element usage" );
			return nullptr;
		}
		PyObject* pyUsageIndex = PyTuple_GetItem( el, 1 );
		if( !PyNumber_Check( pyUsageIndex ) )
		{
			PyErr_SetString( PyExc_TypeError, "Argument 1 needs to be a list of 3-element tuples of numbers" );
			return nullptr;
		}
		int usageIndex = int( PyNumber_AsSsize_t( pyUsageIndex, nullptr ) );
		if( usageIndex < 0 || usageIndex > 7 )
		{
			PyErr_SetString( PyExc_TypeError, "Invalid element usage index" );
			return nullptr;
		}
		PyObject* pyType = PyTuple_GetItem( el, 2 );
		if( !PyNumber_Check( pyType ) )
		{
			PyErr_SetString( PyExc_TypeError, "Argument 1 needs to be a list of 3-element tuples of numbers" );
			return nullptr;
		}
		int type = int( PyNumber_AsSsize_t( pyType, nullptr ) );
		if( type <= 0 || type > 4 )
		{
			PyErr_SetString( PyExc_TypeError, "Invalid element type" );
			return nullptr;
		}

		def.Add(
			Tr2VertexDefinition::DataType( Tr2VertexDefinition::DT_FLOAT32 | ( ( type - 1 ) << Tr2VertexDefinition::DT_SIZE_OFFSET ) ),