public Face getDirectionToStart(){
		if(start.getNorth()!=null){
			return Face.SOUTHERN;
		}else if(start.getWest()!=null){
			return Face.EASTERN;
		}else if(start.getSouth()!=null){
			return Face.NORTHERN;
		}else if(start.getEast()!=null){
			return Face.WESTERN;
		}
		return null;
	}