public void rotateLeft() {
		switch (position.getDirection()) {
			case N:
				position.setDirection(Direction.W);
				break;
			case E:
				position.setDirection(Direction.N);
				break;
			case W:
				position.setDirection(Direction.S);
				break;
			case S:
				position.setDirection(Direction.E);
				break;
		}
	}