public static List<RoomModel> generateRooms()
    {
	List<RoomModel> rooms = new ArrayList<RoomModel>();
	
	for (int i = 0; i < 4; i++)
	{
	    for (int j = 0; j < 3; j++)
	    {
		rooms.add(new RoomModel(i, j));
	    }
	}
	rooms.add(new RoomModel(-1, 0));
	
	return rooms;
    }