Method PlacePieces

src/Generating/PieceGenerator.cpp:563–621

void cBFSPieceGenerator::PlacePieces(int a_BlockX, int a_BlockY, int a_BlockZ, int a_MaxDepth, cPlacedPieces & a_OutPieces)
{
	a_OutPieces.clear();
	cFreeConnectors ConnectorPool;
	
	// Place the starting piece:
	a_OutPieces.push_back(PlaceStartingPiece(a_BlockX, a_BlockY, a_BlockZ, ConnectorPool));
	
	/*
	// DEBUG:
	printf("Placed the starting piece at {%d, %d, %d}\n", a_BlockX, a_BlockY, a_BlockZ);
	cCuboid Hitbox = a_OutPieces[0]->GetHitBox();
	Hitbox.Sort();
	printf("  Hitbox: {%d, %d, %d} - {%d, %d, %d} (%d * %d * %d)\n",
		Hitbox.p1.x, Hitbox.p1.y, Hitbox.p1.z,
		Hitbox.p2.x, Hitbox.p2.y, Hitbox.p2.z,
		Hitbox.DifX() + 1, Hitbox.DifY() + 1, Hitbox.DifZ() + 1
	);
	DebugConnectorPool(ConnectorPool, 0);
	//*/
	
	// Place pieces at the available connectors:
	/*
	Instead of removing them one by one from the pool, we process them sequentially and take note of the last
	processed one. To save on memory, once the number of processed connectors reaches a big number, a chunk
	of the connectors is removed.
	*/
	size_t NumProcessed = 0;
	while (ConnectorPool.size() > NumProcessed)
	{
		cFreeConnector & Conn = ConnectorPool[NumProcessed];
		if (Conn.m_Piece->GetDepth() < a_MaxDepth)
		{
			if (TryPlacePieceAtConnector(*Conn.m_Piece, Conn.m_Connector, a_OutPieces, ConnectorPool))
			{
				/*
				// DEBUG:
				const cPlacedPiece * NewPiece = a_OutPieces.back();
				const Vector3i & Coords = NewPiece->GetCoords();
				printf("Placed a new piece at {%d, %d, %d}, rotation %d\n", Coords.x, Coords.y, Coords.z, NewPiece->GetNumCCWRotations());
				cCuboid Hitbox = NewPiece->GetHitBox();
				Hitbox.Sort();
				printf("  Hitbox: {%d, %d, %d} - {%d, %d, %d} (%d * %d * %d)\n",
					Hitbox.p1.x, Hitbox.p1.y, Hitbox.p1.z,
					Hitbox.p2.x, Hitbox.p2.y, Hitbox.p2.z,
					Hitbox.DifX() + 1, Hitbox.DifY() + 1, Hitbox.DifZ() + 1
				);
				DebugConnectorPool(ConnectorPool, NumProcessed + 1);
				//*/
			}
		}
		NumProcessed++;
		if (NumProcessed > 1000)
		{
			ConnectorPool.erase(ConnectorPool.begin(), ConnectorPool.begin() + NumProcessed);
			NumProcessed = 0;
		}
	}