public Direction clockwise(){
		if (this.equals(NORTH)){
			return NORTHEAST;
		} else if (this.equals(NORTHEAST)){
			return EAST;
		} else if (this.equals(EAST)){
			return SOUTHEAST;
		} else if (this.equals(SOUTHEAST)){
            return SOUTH;
        }  else if (this.equals(SOUTH)){
            return SOUTHWEST;
        }  else if (this.equals(SOUTHWEST)){
            return WEST;
        }  else if (this.equals(WEST)){
            return NORTHWEST;
        }  else if (this.equals(NORTHWEST)){
            return NORTH;
        } else {
        	return NONE;
        }
	}