Function PyPickParticle

trinity/Eve/EveSpaceScene_Blue.cpp:603–735

#if BLUE_WITH_PYTHON
static PyObject* PyPickParticle( PyObject* self, PyObject* args )
{
	int x, y;
	float constPickRadius;
	PyObject* pyData;
	PyObject* pyWorld;
	PyObject* pyProj;
	PyObject* pyView;
	PyObject* pyViewport;
	if( !PyArg_ParseTuple(
			args,
			"O!iiO!O!O!O!f",
			Tr2RuntimeInstanceData::ClassType_()->mTypeObject,
			&pyData,
			&x,
			&y,
			&PyTuple_Type,
			&pyWorld,
			TriView::ClassType_()->mTypeObject,
			&pyView,
			TriProjection::ClassType_()->mTypeObject,
			&pyProj,
			TriViewport::ClassType_()->mTypeObject,
			&pyViewport,
			&constPickRadius ) )
	{
		return nullptr;
	}

	Matrix world;
	if( !BlueExtractMatrix( pyWorld, &world.m[0][0], 16 ) )
	{
		PyErr_SetString( PyExc_TypeError, "Argument 4 needs to be a matrix" );
		return nullptr;
	}

	Tr2RuntimeInstanceData* data = BluePythonCast<Tr2RuntimeInstanceData*>( pyData );
	TriProjection* proj = BluePythonCast<TriProjection*>( pyProj );
	TriView* view = BluePythonCast<TriView*>( pyView );
	TriViewport* viewport = BluePythonCast<TriViewport*>( pyViewport );

	if( data->GetData() == 0 )
	{
		return ToPython( -1 );
	}

	const Tr2VertexDefinition& def = data->GetLayout();
	if( def.m_items.empty() )
	{
		return ToPython( -1 );
	}

	const char* positionStream = nullptr;

	for( auto it = def.m_items.begin(); it != def.m_items.end(); ++it )
	{
		if( it->m_usage == Tr2VertexDefinition::POSITION && it->m_usageIndex == 0 )
		{