On Mon, Jan 10, 2011 at 9:16 AM, Justin Zamora <[email protected]> wrote:
> The stepper works fine on simple programs. You can try watching this > video tutorial I made for my students. It's basic, but it covers the > essentials of using the stepper. > http://www.youtube.com/watch?v=j3X07a-7YRM > > Justin > > On Sun, Jan 9, 2011 at 9:02 AM, Sayth Renshaw <[email protected]> > wrote: > > I am having a real issue with the stepper. Maybe the programs are too > simple > > so far for the stepper, but it doesn't step. > > > > The check syntax feature is great. for the check-color game should the > > stepper work? What is the trick? I just wanted to check the flow by > stepping > > through. > > Each time I use it I get "Couldn't find a step matching that criterion" > > No matter what I change select or do. > > > > ;check-color > > ;colour guessing game (target target)(guess guess) > > ;symbol symbol symbol symbol -> string > > ;four color symbols > > (define (check-color target1 target2 guess1 guess2) > > (cond > > [(eq? target1 guess1) 'Perfect] > > [(or (eq? target1 guess1)(eq? target2 guess2)) > > 'OneColorAtCorrectPosition] > > [(or (eq? target1 guess2)(eq? target2 guess1)) 'OneColorOccurs] > > [else 'NothingCorrect])) > > > > ;(check-color 'red 'green 'green 'red) > > ;'OneColorOccurs > > > > Sayth > > > > _________________________________________________ > > For list-related administrative tasks: > > http://lists.racket-lang.org/listinfo/users > > > Thanks heaps. Very handy
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