racket/collects/mztake/demos/random/random-mztake-uncommented.ss
Eli Barzilay cfce6631b3 props etc
svn: r187
2005-06-16 00:22:41 +00:00

44 lines
1.2 KiB
Scheme

(require (lib "graphics.ss" "graphics")
(lib "mztake.ss" "mztake")
(lifted mzscheme
make-hash-table
hash-table-put!
hash-table-get))
(open-graphics)
(define window (open-viewport "Debugger" 600 500))
((draw-viewport window) (make-rgb 0.95 0.95 0.95))
(define/bind (loc "random.ss" 4 6) x)
(define largest-bin 0)
(define valcount (make-hash-table))
(hold (x-trace . -=> .(printf-b "largest count: ~a" largest-bin)))
(map-e (lambda (x)
(let* ([new-cnt (add1 (hash-table-get valcount x (lambda () 0)))]
[color (/ new-cnt (add1 largest-bin))])
(when (= largest-bin 250)
(kill p))
(when (> new-cnt largest-bin) (set! largest-bin new-cnt))
(hash-table-put! valcount x new-cnt)
((draw-solid-rectangle window) (make-posn (* x 6) (- 500 (* 2 new-cnt)))
6 10 ;; width height
(make-rgb 0 (* 0.75 color) color))))
x-trace)
(printf-b "count: ~a" (count-b x-trace))
(set-running! true)