[racket] syntax, differently

From: Todd O'Bryan (toddobryan at gmail.com)
Date: Sun Aug 1 18:14:21 EDT 2010

You'd create the new world and set field values using mutators.

So

if (x > 248 && x < 424 && y > 570 && y < 649) {
    SState newState = new SState();
    newState.setBackground(blah);
    newState.setButton(blah2);
    ...
}

On Sun, Aug 1, 2010 at 5:22 PM, Richard Cleis <rcleis at mac.com> wrote:
> [snip]
>
> I was trying to emphasize that it may be harder to students to keep their
> code neater compared to some other languages which usually have code that
> rarely exceed 1 line.
> Example:
> Racket using the universe teachpack:
> (define (s-mouse-engine s x y event)
>   (cond
>     [(and
>       (and (> x 248)           (< x 424))
>       (and (> y 570)           (< y 649)))
>         (make-S-STATE
>          (get-s-background s)                ;;I have made methods here to
> reduce length, but other wise it would be longer.
>          (make-button
>           (s-mouse-engine-worker1 event "button-img")
>           (get-s-button-x s)                   ;;I have made methods here to
> reduce length, but other wise it would be longer.
>           (get-s-button-y s)                   ;;I have made methods here to
> reduce length, but other wise it would be longer.
>           (s-mouse-engine-worker1 event "button-initiate")))]
>
> How would you write that in another language that rarely exceeds one line?
> rac
> _________________________________________________
>  For list-related administrative tasks:
>  http://lists.racket-lang.org/listinfo/users
>


Posted on the users mailing list.