start1->user_data[NPF_NODE_FLAGS] = 0;

	NPFSetFlag(start1, NPF_FLAG_IGNORE_START_TILE, ignore_start_tile1);

	_npf_aystar.AddStartNode(start1, 0);

		start2->user_data[NPF_TRACKDIR_CHOICE] = INVALID_TRACKDIR;

		start2->user_data[NPF_NODE_FLAGS] = 0;

		NPFSetFlag(start2, NPF_FLAG_IGNORE_START_TILE, ignore_start_tile2);