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|
#lang racket/base
(require racket/class
racket/unit
racket/gui/base
"../show-scribbling.rkt"
"same-lib.rkt")
(provide game@)
(define game@
(unit
(import)
(export)
(define board-width 20)
(define board-height 16)
;; build-board : (-> (vectorof (vectorof (vector (union num #f) boolean))))
; this represents the board. Each entry is the color index of
; the piece and a node to mark for the depth-first traversal.
; #f for the color index indicates an eliminated piece.
(define (build-board)
(define board
(build-vector
board-width
(lambda (i)
(build-vector
board-height
(lambda (j)
(vector
(random (length colors))
#f))))))
(for* ([x (in-range 1 board-width)]
[y (in-range 1 board-height)])
(when (zero? (random 5))
(define-values (prev-x prev-y)
(if (zero? (random 2))
(values x (- y 1))
(values (- x 1) y)))
(define this-vector (board-ref board x y))
(define prev-vector (board-ref board prev-x prev-y))
(vector-set! this-vector 0 (vector-ref prev-vector 0))))
board)
(define board (build-board))
(define game-over? #f)
;; adds up as the user clicks
(define clicked-score 0)
(define (calc-score n) (* n n))
(define (reset-score)
(set! clicked-score 0)
(set-score-label))
(define (update-score balls-going-away)
(set! clicked-score (+ clicked-score (calc-score balls-going-away)))
(set-score-label))
(define (set-score-label)
(define cells-filled-in 0)
(for ([v (in-vector board)])
(for ([v (in-vector v)])
(when (vector-ref v 0)
(set! cells-filled-in (+ cells-filled-in 1)))))
(define bonus-start 50) ;; bonus for getting down to 49 (or fewer) balls
(define bonus-per-ball 100) ;; number of points for clearing each of those last 'bonus-start' balls
(define bonus (if (<= cells-filled-in bonus-start)
(* bonus-per-ball (- bonus-start cells-filled-in))
0))
(send score-message set-label
(format "~a + ~a = ~a"
clicked-score
bonus
(+ clicked-score bonus))))
(define same-canvas%
(class canvas%
(inherit get-dc get-client-size make-bitmap)
(define/private (get-width) (let-values ([(w h) (get-client-size)]) w))
(define/private (get-height) (let-values ([(w h) (get-client-size)]) h))
(define/private (get-x-step) (/ (get-width) board-width))
(define/private (get-y-step) (/ (get-height) board-height))
(define mouse-current-x #f)
(define mouse-current-y #f)
(define mouse-clicked-x #f)
(define mouse-clicked-y #f)
(define background-valid? #f)
(define background #f)
(define/public (invalidate-board-bitmap)
(set! background-valid? #f))
(define/override (on-size w h)
(define-values (cw ch) (get-client-size))
(when background
(unless (and (= cw (send background get-width))
(= ch (send background get-height)))
(set! background #f)
(set! background-valid? #f))))
(define/override (on-paint)
(define-values (cw ch) (get-client-size))
(define dc (get-dc))
(send dc set-smoothing 'smoothed)
(build-background)
(send dc set-scale 1 1)
(send dc draw-bitmap background 0 0)
(define current-blob
(and mouse-current-x
(find-same-colors board board-width board-height
mouse-current-x
mouse-current-y)))
(cond
[(and mouse-clicked-x
mouse-current-x
(equal? mouse-clicked-x mouse-current-x)
(equal? mouse-clicked-y mouse-current-y))
;; don't know what to do here
(define blob
(find-same-colors board board-width board-height
mouse-current-x
mouse-current-y))
(unless (null? blob)
(define color
(vector-ref (board-ref board mouse-current-x mouse-current-y)
0))
(define-values (cw ch) (get-client-size))
(update-dc-scale dc cw ch board-width board-height)
(update-pen/draw-blob
blob dc color
mouse-current-x mouse-current-y
mouse-clicked-x mouse-clicked-y))]
[mouse-current-x
(define blob
(find-same-colors board board-width board-height
mouse-current-x
mouse-current-y))
(unless (null? blob)
(define color
(vector-ref (board-ref board mouse-current-x mouse-current-y)
0))
(define-values (cw ch) (get-client-size))
(update-dc-scale dc cw ch board-width board-height)
(update-pen/draw-blob
blob dc color
mouse-current-x mouse-current-y
mouse-clicked-x mouse-clicked-y))])
(when game-over?
(update-dc-scale dc cw ch board-width board-height)
(paint-game-over)))
(define/private (build-background)
(unless background-valid?
(define-values (cw ch) (get-client-size))
(unless background
(set! background (make-bitmap cw ch)))
(define bdc (make-object bitmap-dc% background))
(draw-board bdc board-width board-height board cw ch #f #f #f #f)
(send bdc set-bitmap #f)
(set! background-valid? #t)))
(define/private (paint-game-over)
(define dc (get-dc))
(define game-over "Game Over")
(send dc set-font
(send the-font-list find-or-create-font
24 'decorative 'normal 'normal #f))
(define border 5)
(define-values (text-width text-height d l)
(send dc get-text-extent game-over))
(define x (- (/ (* cell-w board-width) 2) (/ text-width 2)))
(define y (- (/ (* cell-h board-height) 2) (/ text-height 2)))
(send dc set-pen "white" 1' transparent)
(send dc set-brush "white" 'solid)
(send dc set-alpha .8)
(send dc draw-rectangle
(- x border border) (- y border)
(+ text-width border border border border)
(+ text-height border border))
(send dc set-alpha 1)
(send dc draw-text game-over x y))
(inherit refresh)
(define/override (on-event evt)
(define x (send evt get-x))
(define y (send evt get-y))
(define-values (cw ch) (get-client-size))
(define bx (floor (* (/ x cw) board-width)))
(define by (floor (* (/ y ch) board-height)))
(unless (<= 0 bx (- board-width 1)) (set! bx #f))
(unless (<= 0 by (- board-height 1)) (set! by #f))
(when (send evt leaving?)
(set! bx #f)
(set! by #f))
(when (send evt button-up?)
(when (and (equal? mouse-clicked-x bx)
(equal? mouse-clicked-y by))
(define removed-ball-count
(make-a-move mouse-clicked-x mouse-clicked-y
board board-width board-height))
(when removed-ball-count
(update-score removed-ball-count)
(invalidate-board-bitmap)
(update-game-over)
(refresh))))
(define-values (new-mouse-clicked-x new-mouse-clicked-y)
(cond
[(send evt button-down?) (values bx by)]
[(send evt button-up?) (values #f #f)]
[else (values mouse-clicked-x mouse-clicked-y)]))
(define this-score-needs-update? #f)
(unless (and (equal? mouse-clicked-x new-mouse-clicked-x)
(equal? mouse-clicked-y new-mouse-clicked-y))
(set! mouse-clicked-x new-mouse-clicked-x)
(set! mouse-clicked-y new-mouse-clicked-y)
(set! this-score-needs-update? #t)
(refresh))
(unless (and (equal? bx mouse-current-x)
(equal? by mouse-current-y))
(set! mouse-current-x bx)
(set! mouse-current-y by)
(set! this-score-needs-update? #t)
(refresh))
(when this-score-needs-update?
(update-this-score (if mouse-clicked-x
mouse-clicked-x
mouse-current-x)
(if mouse-clicked-y
mouse-clicked-y
mouse-current-y))))
(define/private (update-this-score x y)
(send this-score-message set-label
(cond
[(and x y)
(define num (length (find-same-colors board
board-width
board-height
x y)))
(if (= num 1)
""
(format "~a" (calc-score num)))]
[else ""])))
(define/public-final (update-game-over)
(set! game-over?
(not
(let loop ([i board-width]
[continue? #f])
(cond
[(zero? i) continue?]
[else
(or continue?
(loop
(sub1 i)
(let loop ([j board-height]
[continue? continue?])
(cond
[(zero? j) continue?]
[else
(or continue?
(loop
(sub1 j)
(> (length (find-same-colors board
board-width
board-height
(sub1 i)
(sub1 j)))
1)))]))))])))))
(super-new)))
(define semaphore (make-semaphore 0))
(define same-frame%
(class frame%
[define/augment on-close
(lambda ()
(semaphore-post semaphore)
(inner (void) on-close))]
(super-new [style '(metal)])))
(define (new-game-callback redraw?)
(set! game-over? #f)
(set! board (build-board))
(reset-score)
(send canvas invalidate-board-bitmap)
(send canvas update-game-over)
(when redraw?
(send canvas refresh)))
(define frame (make-object same-frame% "Same"))
(define panel (make-object vertical-panel% frame))
(define canvas (make-object same-canvas% panel))
(define hp (new horizontal-panel% [parent panel] [stretchable-height #f]))
(new message% [label "Total Score: "] [parent hp])
(define score-message (new message%
[label "10000 + 10000 = 20000"] ;; get a reasonable min size
[parent hp] [stretchable-width #t]))
(new message% [label "This Score: "] [parent hp])
(define this-score-message (new message%
[label "10000"] ;; get a reasonable min size
[parent hp]
[stretchable-width #t]))
(define button (make-object button% "New Game" hp (lambda x (new-game-callback #t))))
(define help-button (make-object button% "Help"
hp
(let ([show-help
(show-scribbling
'(lib "games/scribblings/games.scrbl")
"same")])
(lambda (_1 _2)
(show-help)))))
(send canvas update-game-over)
(reset-score)
(send canvas min-width (ceiling (* board-width cell-w #e2.5)))
(send canvas min-height (ceiling (* board-height cell-h #e2.5)))
(send frame show #t)
(void (yield semaphore))))
; (make-same-bitmap "same.png")
|
