newTownBlock(new Coord(x, z));
}
public TownBlock newTownBlock(Coord key) throws AlreadyRegisteredException {
if (hasTownBlock(key))
throw new AlreadyRegisteredException();
townBlocks.put(new Coord(key.getX(), key.getZ()), new TownBlock(key.getX(), key.getZ(), this));
return townBlocks.get(new Coord(key.getX(), key.getZ()));
}