public Baddy enemyMove( ) {
		if ( lastMove == 0 ) {
			return new Baddy( new Posn( pin.x, pin.y + 20), "images/downbaddy.png", 0 );
		} else 	if ( lastMove == 1 ) {
			return new Baddy( new Posn( pin.x + 20, pin.y), "images/rightbaddy.png", 1 );
		} else if ( lastMove == 2 ) {
			return new Baddy( new Posn( pin.x, pin.y - 20), "images/upbaddy.png", 2 );
		} else
			return new Baddy( new Posn( pin.x - 20, pin.y), "images/leftbaddy.png", 3 );
	}