public boolean isEmptyCluster(Hashtable processed, int x, int y)
	{
		for(final Enumeration e=processed.elements();e.hasMoreElements();)
		{
			final MapRoom room=(MapRoom)e.nextElement();
			if((((room.x>x-CLUSTERSIZE)&&(room.x<x+CLUSTERSIZE))
			&&((room.y>y-CLUSTERSIZE)&&(room.y<y+CLUSTERSIZE)))
			||((room.x==x)&&(room.y==y)))
				return false;
		}
		return true;
	}