public Position cellToDot(Stripe stripe, Position p) {
   Integer x = null;
   Integer y = null;
   switch (stripe) {
     case UP:
       y = p.y();
       x = p.x() + 1;
       break;
     case RIGHT:
       break;
     case DOWN:
       break;
     case LEFT:
       x = p.x();
       y = p.y() + 1;
       break;
     default:
       break;
   }
   return new Position(x, y);
 }
 public Movement dotToMovement(Position a, Position b) {
   Stripe stripe = null;
   Integer x = null;
   Integer y = null;
   x = Math.min(a.x(), b.x());
   y = Math.min(a.y(), b.y());
   if (a.x() == b.x()) {
     stripe = Stripe.LEFT;
   } else if (a.y() == b.y()) {
     stripe = Stripe.UP;
   }
   if (a.x() == this.GAME_SIZE && b.y() != this.GAME_SIZE) {
     x = this.GAME_SIZE - 1;
     stripe = Stripe.RIGHT;
   }
   if (a.y() == this.GAME_SIZE && b.x() != this.GAME_SIZE) {
     y = this.GAME_SIZE - 1;
     stripe = Stripe.DOWN;
   }
   Position position = new Position(x, y);
   return new Movement(position, stripe);
 }