On 1/9/11 9:02 AM, Sayth Renshaw 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,
You need to have at least one expression to step through in order for
the stepper to work. The program you've given consists of a single
definition and *no* expressions.
The fix is easy: uncomment the check-color expression you have and step
through its computation.
David
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