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svn: r8625

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Eli Barzilay 2008-02-11 22:25:08 +00:00
parent 88290b46be
commit 6bcaca2f09
29 changed files with 4393 additions and 4732 deletions
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596
collects/games/aces/aces.scm
View File

@ -5,367 +5,329 @@ possible to remap single click (instead of double click)?
|# |#
(module aces mzscheme #lang mzscheme
(require (lib "cards.ss" "games" "cards") (require (lib "cards.ss" "games" "cards")
(lib "class.ss") (lib "class.ss")
(lib "unit.ss") (lib "mred.ss" "mred")
(lib "mred.ss" "mred") (lib "list.ss")
(lib "list.ss") (lib "unit.ss")
(lib "string-constant.ss" "string-constants") (lib "string-constant.ss" "string-constants")
"../show-help.ss") "../show-help.ss")
(provide game@) (provide game@)
(define game@ (unit (import) (export)
(define game@ (define table (make-table "Aces" 6 5))
(unit
(import)
(export)
(define table (make-table "Aces" 6 5)) (make-object button% (string-constant help-menu-label) table
(let ([show-help (show-help (list "games" "aces") "Aces Help")])
(lambda x (show-help))))
(make-object button% (string-constant help-menu-label) table (define draw-pile null)
(let ([show-help (show-help (list "games" "aces") "Aces Help")])
(lambda x
(show-help))))
(define draw-pile null) (define card-height (send (car (make-deck)) card-height))
(define card-width (send (car (make-deck)) card-width))
(define region-height (send table table-height))
(define card-height (send (car (make-deck)) card-height)) ;; space between cards in the 4 stacks
(define card-width (send (car (make-deck)) card-width)) (define card-space 30)
(define region-height (send table table-height))
;; space between cards in the 4 stacks (define-struct stack (x y cards))
(define card-space 30)
(define-struct stack (x y cards)) (define (get-x-offset n)
(let* ([table-width (send table table-width)]
[stack-spacing 7]
[num-stacks 5]
[all-stacks-width (+ (* num-stacks card-width)
(* (- num-stacks 1) stack-spacing))])
(+ (- (/ table-width 2) (/ all-stacks-width 2))
(* n (+ card-width stack-spacing)))))
(define (get-x-offset n) (define draw-pile-region
(let* ([table-width (send table table-width)] (make-button-region
[stack-spacing 7] (get-x-offset 0)
[num-stacks 5] 0
[all-stacks-width card-width
(+ (* num-stacks card-width) region-height ; card-height
(* (- num-stacks 1) stack-spacing))]) #f
(+ (- (/ table-width 2) (/ all-stacks-width 2)) #f))
(* n (+ card-width stack-spacing)))))
(define draw-pile-region (define stacks
(make-button-region (list (make-stack (get-x-offset 1) 0 null)
(get-x-offset 0) (make-stack (get-x-offset 2) 0 null)
0 (make-stack (get-x-offset 3) 0 null)
card-width (make-stack (get-x-offset 4) 0 null)))
region-height ; card-height
#f
#f))
(define stacks ;; type state = (make-state (listof cards) (listof[4] (listof cards)))
(list (define-struct state (draw-pile stacks))
(make-stack
(get-x-offset 1)
0
null)
(make-stack
(get-x-offset 2)
0
null)
(make-stack
(get-x-offset 3)
0
null)
(make-stack
(get-x-offset 4)
0
null)))
;; type state = (make-state (listof cards) (listof[4] (listof cards))) ;; extract-current-state : -> state
(define-struct state (draw-pile stacks)) (define (extract-current-state)
(make-state (copy-list draw-pile)
(map (lambda (x) (copy-list (stack-cards x))) stacks)))
;; extract-current-state : -> state (define (copy-list l) (map (lambda (x) x) l))
(define (extract-current-state)
(make-state
(copy-list draw-pile)
(map (lambda (x) (copy-list (stack-cards x))) stacks)))
(define (copy-list l) (map (lambda (x) x) l)) ;; install-state : -> void
(define (install-state state)
(send table begin-card-sequence)
;; install-state : -> void ;; erase all old snips
(define (install-state state) (send table remove-cards draw-pile)
(send table begin-card-sequence) (for-each (lambda (stack)
(send table remove-cards (stack-cards stack)))
stacks)
;; erase all old snips ;; restore old state
(send table remove-cards draw-pile) (set! draw-pile (state-draw-pile state))
(for-each (lambda (stack) (for-each (lambda (stack cards) (set-stack-cards! stack cards))
(send table remove-cards (stack-cards stack))) stacks
stacks) (state-stacks state))
;; restore old state ;; restore GUI
(set! draw-pile (state-draw-pile state)) (for-each (lambda (draw-pile-card)
(for-each (lambda (stack cards) (set-stack-cards! stack cards)) (send table add-card draw-pile-card 0 0))
stacks draw-pile)
(state-stacks state)) (send table move-cards-to-region draw-pile draw-pile-region)
(for-each (lambda (draw-pile-card)
(send table card-face-down draw-pile-card)
(send table card-to-front draw-pile-card))
(reverse draw-pile))
;; restore GUI (for-each (lambda (stack)
(for-each (lambda (draw-pile-card) (let ([num-cards (length (stack-cards stack))])
(send table add-card draw-pile-card 0 0)) (send table add-cards (stack-cards stack) 0 0)
draw-pile) (send table move-cards (stack-cards stack)
(send table move-cards-to-region draw-pile draw-pile-region) (stack-x stack)
(for-each (lambda (draw-pile-card) (stack-y stack)
(send table card-face-down draw-pile-card) (lambda (i)
(send table card-to-front draw-pile-card)) (values 0 (* (- num-cards i 1) card-space)))))
(reverse draw-pile)) (send table cards-face-up (stack-cards stack)))
stacks)
(send table end-card-sequence))
(for-each ;; undo-stack : (listof state)
(lambda (stack) (define undo-stack null)
(let ([num-cards (length (stack-cards stack))])
(send table add-cards (stack-cards stack) 0 0)
(send table move-cards (stack-cards stack)
(stack-x stack)
(stack-y stack)
(lambda (i)
(values 0
(* (- num-cards i 1) card-space)))))
(send table cards-face-up (stack-cards stack)))
stacks)
(send table end-card-sequence))
;; undo-stack : (listof state) ;; redo-stack : (listof state)
(define undo-stack null) (define redo-stack null)
;; redo-stack : (listof state) ;; save-undo : -> void
(define redo-stack null) ;; saves the current state in the undo stack
(define (save-undo)
(set! undo-stack (cons (extract-current-state) undo-stack))
(set! redo-stack null))
;; save-undo : -> void ;; do-undo : -> void
;; saves the current state in the undo stack ;; pre: (not (null? undo-stack))
(define (save-undo) (define (do-undo)
(set! undo-stack (cons (extract-current-state) undo-stack)) (let ([to-install (car undo-stack)])
(set! redo-stack null)) (set! redo-stack (cons (extract-current-state) redo-stack))
(set! undo-stack (cdr undo-stack))
(install-state to-install)))
;; do-undo : -> void ;; do-redo : -> void
;; pre: (not (null? undo-stack)) ;; pre: (not (null? redo-stack))
(define (do-undo) (define (do-redo)
(let ([to-install (car undo-stack)]) (let ([to-install (car redo-stack)])
(set! redo-stack (cons (extract-current-state) redo-stack)) (set! undo-stack (cons (extract-current-state) undo-stack))
(set! undo-stack (cdr undo-stack)) (set! redo-stack (cdr redo-stack))
(install-state to-install))) (install-state to-install)))
;; do-redo : -> void (define (position-cards stack)
;; pre: (not (null? redo-stack)) (let ([m (length (stack-cards stack))])
(define (do-redo) (lambda (i)
(let ([to-install (car redo-stack)]) (values 0 (if (= m 0) 0 (* (- m i 1) card-space))))))
(set! undo-stack (cons (extract-current-state) undo-stack))
(set! redo-stack (cdr redo-stack))
(install-state to-install)))
(define (position-cards stack) (define (reset-game)
(let ([m (length (stack-cards stack))]) (send table remove-cards draw-pile)
(lambda (i) (for-each (lambda (stack) (send table remove-cards (stack-cards stack)))
(values 0 stacks)
(if (= m 0)
0
(* (- m i 1) card-space))))))
(define (reset-game) (set! undo-stack null)
(send table remove-cards draw-pile) (set! redo-stack null)
(for-each
(lambda (stack) (send table remove-cards (stack-cards stack)))
stacks)
(set! undo-stack null) (let* ([deck (shuffle-list (make-deck) 7)]
(set! redo-stack null) [set-stack
(lambda (which)
(set-stack-cards! (which stacks) (list (which deck))))])
(for-each (lambda (card)
(send card user-can-move #f)
(send card user-can-flip #f))
deck)
(set! draw-pile (cddddr deck))
(set-stack car)
(set-stack cadr)
(set-stack caddr)
(set-stack cadddr))
(let* ([deck (shuffle-list (make-deck) 7)] (for-each (lambda (stack)
[set-stack (send table add-cards
(lambda (which) (stack-cards stack)
(set-stack-cards! (which stacks) (list (which deck))))]) (stack-x stack)
(for-each (lambda (card) (stack-y stack)
(send card user-can-move #f) (position-cards stack))
(send card user-can-flip #f)) (for-each (lambda (card) (send card flip))
deck) (stack-cards stack)))
(set! draw-pile (cddddr deck)) stacks)
(set-stack car)
(set-stack cadr)
(set-stack caddr)
(set-stack cadddr))
(for-each (send table add-cards-to-region draw-pile draw-pile-region))
(lambda (stack)
(send table add-cards
(stack-cards stack)
(stack-x stack)
(stack-y stack)
(position-cards stack))
(for-each
(lambda (card) (send card flip))
(stack-cards stack)))
stacks)
(send table add-cards-to-region draw-pile draw-pile-region)) (define (move-from-deck)
(save-undo)
(unless (null? draw-pile)
(let ([move-one
(lambda (select)
(let ([stack (select stacks)]
[card (select draw-pile)])
(set-stack-cards! stack (cons card (stack-cards stack)))
(send table card-to-front card)
(send table flip-card card)))])
(define (move-from-deck) (send table begin-card-sequence)
(save-undo) (move-one car)
(unless (null? draw-pile) (move-one cadr)
(let ([move-one (move-one caddr)
(lambda (select) (move-one cadddr)
(let ([stack (select stacks)] (send table end-card-sequence)
[card (select draw-pile)])
(set-stack-cards! stack
(cons card (stack-cards stack)))
(send table card-to-front card)
(send table flip-card card)))])
(send table begin-card-sequence) (let ([cards-to-move (list (car draw-pile)
(move-one car) (cadr draw-pile)
(move-one cadr) (caddr draw-pile)
(move-one caddr) (cadddr draw-pile))])
(move-one cadddr) (send table move-cards cards-to-move
(send table end-card-sequence) 0 0
(lambda (i)
(let ([stack (list-ref stacks i)])
(let-values ([(dx dy) ((position-cards stack) 0)])
(values (+ dx (stack-x stack))
(+ dy (stack-y stack))))))))
(let ([cards-to-move (list (car draw-pile) (set! draw-pile (cddddr draw-pile))
(cadr draw-pile)
(caddr draw-pile)
(cadddr draw-pile))])
(send table move-cards cards-to-move
0 0
(lambda (i)
(let ([stack (list-ref stacks i)])
(let-values ([(dx dy) ((position-cards stack) 0)])
(values (+ dx (stack-x stack))
(+ dy (stack-y stack))))))))
(set! draw-pile (cddddr draw-pile)) (send table move-cards-to-region draw-pile draw-pile-region))))
(send table move-cards-to-region draw-pile draw-pile-region)))) (define (move-to-empty-spot card stack)
(save-undo)
(send table move-cards
(list card)
(stack-x stack)
(stack-y stack)
(position-cards stack))
(remove-card-from-stacks card)
(set-stack-cards! stack (cons card (stack-cards stack))))
(define (move-to-empty-spot card stack) (define (remove-card card)
(save-undo) (save-undo)
(send table move-cards (send table remove-card card)
(list card) (remove-card-from-stacks card))
(stack-x stack)
(stack-y stack)
(position-cards stack))
(remove-card-from-stacks card)
(set-stack-cards!
stack
(cons card (stack-cards stack))))
(define (remove-card card) (define (remove-card-from-stacks card)
(save-undo) (let ([old-cards (map stack-cards stacks)])
(send table remove-card card) (for-each (lambda (stack)
(remove-card-from-stacks card)) (set-stack-cards! stack (remq card (stack-cards stack))))
stacks)
(for-each (lambda (stack old-cards)
(unless (equal? (stack-cards stack) old-cards)
(send table move-cards
(stack-cards stack)
(stack-x stack)
(stack-y stack)
(position-cards stack))))
stacks
old-cards)))
(define (remove-card-from-stacks card) (send table set-single-click-action
(let ([old-cards (map stack-cards stacks)]) (lambda (card)
(for-each (if (send card face-down?)
(lambda (stack) (move-from-deck)
(set-stack-cards! stack (remq card (stack-cards stack)))) (let ([bottom-four
stacks) (let loop ([l stacks])
(for-each (lambda (stack old-cards) (if (null? l)
(unless (equal? (stack-cards stack) old-cards) null
(send table move-cards (let ([stack (car l)])
(stack-cards stack) (if (null? (stack-cards stack))
(stack-x stack) (loop (cdr l))
(stack-y stack) (cons (car (stack-cards stack)) (loop (cdr l)))))))])
(position-cards stack)))) (when (memq card bottom-four)
stacks (if (ormap (lambda (bottom-card)
old-cards))) (and (eq? (send card get-suit)
(send bottom-card get-suit))
(send table set-single-click-action (or (and (not (= 1 (send card get-value)))
(lambda (card) (= 1 (send bottom-card get-value)))
(cond (and (not (= 1 (send card get-value)))
[(send card face-down?) (move-from-deck)] (< (send card get-value)
[else (send bottom-card get-value))))))
(let ([bottom-four bottom-four)
(let loop ([l stacks]) (remove-card card)
(cond (let loop ([stacks stacks])
[(null? l) null] (if (null? stacks)
[else (let ([stack (car l)]) (void)
(if (null? (stack-cards stack)) (let ([stack (car stacks)])
(loop (cdr l)) (if (null? (stack-cards stack))
(cons (car (stack-cards stack)) (move-to-empty-spot card stack)
(loop (cdr l)))))]))]) (loop (cdr stacks))))))))))
(when (memq card bottom-four)
(cond
[(ormap (lambda (bottom-card)
(and (eq? (send card get-suit)
(send bottom-card get-suit))
(or
(and (not (= 1 (send card get-value)))
(= 1 (send bottom-card get-value)))
(and (not (= 1 (send card get-value)))
(< (send card get-value)
(send bottom-card get-value))))))
bottom-four)
(remove-card card)]
[else (let loop ([stacks stacks])
(cond
[(null? stacks) (void)]
[else (let ([stack (car stacks)])
(if (null? (stack-cards stack))
(move-to-empty-spot card stack)
(loop (cdr stacks))))]))])))])
(check-game-over))) (check-game-over)))
(define (game-over?) (define (game-over?)
(and (null? draw-pile) (and (null? draw-pile)
(let ([suits/false (let ([suits/false
(map (lambda (x) (map (lambda (x)
(let ([stack-cards (stack-cards x)]) (let ([stack-cards (stack-cards x)])
(if (null? stack-cards) (if (null? stack-cards)
#f #f
(send (car stack-cards) get-suit)))) (send (car stack-cards) get-suit))))
stacks)]) stacks)])
(if (member #f suits/false) (if (member #f suits/false)
#f #f
(and (memq 'clubs suits/false) (and (memq 'clubs suits/false)
(memq 'diamonds suits/false) (memq 'diamonds suits/false)
(memq 'hearts suits/false) (memq 'hearts suits/false)
(memq 'spades suits/false)))))) (memq 'spades suits/false))))))
(define (won?) (define (won?)
(and (game-over?) (and (game-over?)
(andmap (lambda (x) (andmap (lambda (x)
(let ([cards (stack-cards x)]) (let ([cards (stack-cards x)])
(and (not (null? cards)) (and (not (null? cards))
(null? (cdr cards)) (null? (cdr cards))
(= 1 (send (car cards) get-value))))) (= 1 (send (car cards) get-value)))))
stacks))) stacks)))
(define (check-game-over) (define (check-game-over)
(when (game-over?) (when (game-over?)
(case (message-box "Aces" (case (message-box "Aces"
(if (won?) (if (won?)
"Congratulations! You win! Play again?" "Congratulations! You win! Play again?"
"Game Over. Play again?") "Game Over. Play again?")
table table
'(yes-no)) '(yes-no))
[(yes) (reset-game)] [(yes) (reset-game)]
[(no) (send table show #f)]))) [(no) (send table show #f)])))
(send table add-region draw-pile-region) (send table add-region draw-pile-region)
(reset-game) (reset-game)
(define mb (or (send table get-menu-bar) (define mb (or (send table get-menu-bar)
(make-object menu-bar% table))) (make-object menu-bar% table)))
(define edit-menu (instantiate menu% () (define edit-menu (new menu% [parent mb] [label (string-constant edit-menu)]))
(parent mb) (new menu-item%
(label (string-constant edit-menu)))) [label (string-constant undo-menu-item)]
(instantiate menu-item% () [parent edit-menu]
(label (string-constant undo-menu-item)) [callback (lambda (x y) (do-undo))]
(parent edit-menu) [shortcut #\z]
(callback (lambda (x y) (do-undo))) [demand-callback
(shortcut #\z) (lambda (item) (send item enable (not (null? undo-stack))))])
(demand-callback (new menu-item%
(lambda (item) [label (string-constant redo-menu-item)]
(send item enable (not (null? undo-stack)))))) [parent edit-menu]
(instantiate menu-item% () [callback (lambda (x y) (do-redo))]
(label (string-constant redo-menu-item)) [shortcut #\y]
(parent edit-menu) [demand-callback
(callback (lambda (x y) (do-redo))) (lambda (item) (send item enable (not (null? redo-stack))))])
(shortcut #\y)
(demand-callback
(lambda (item)
(send item enable (not (null? redo-stack))))))
(send table show #t)))) (send table show #t)
))

16
collects/games/aces/doc.txt
View File

@ -1,17 +1,17 @@
** To play _Aces_, run the "Games" application. ** ** To play Aces, run the "PLT Games" application.
Aces is a solitaire card game. The object is to remove all of the cards Aces is a solitaire card game. The object is to remove all of the
from the board, except the four Aces. cards from the board, except the four Aces.
Remove a card by clicking it. You may remove a card when two Remove a card by clicking it. You may remove a card when two
conditions are true. First, it must be at the bottom of one of the conditions are true. First, it must be at the bottom of one of the
four stacks of cards. Second, either the ace of the same suit, or a four stacks of cards. Second, either the ace of the same suit, or a
higher card of the same suit must also be at the bottom of one of the higher card of the same suit must also be at the bottom of one of the
four stacks of cards. four stacks of cards.
You may also move any card from the bottom of one of the stacks to an You may also move any card from the bottom of one of the stacks to an
empty stack by clicking it. If there are still cards in the deck on the empty stack by clicking it. If there are still cards in the deck on
right, you may click the deck to deal four new cards, one onto the the right, you may click the deck to deal four new cards, one onto the
bottom of each stack. bottom of each stack.
Good Luck! Good Luck!

778
collects/games/blackjack/blackjack.ss
View File

@ -29,422 +29,412 @@
;; ;;
;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(module blackjack mzscheme #lang mzscheme
(require (lib "cards.ss" "games" "cards")
(lib "mred.ss" "mred")
(lib "class.ss")
(lib "unit.ss")
(lib "list.ss"))
(provide game@) (require (lib "cards.ss" "games" "cards")
(lib "mred.ss" "mred")
(lib "class.ss")
(lib "list.ss")
(lib "unit.ss"))
(define game@ (provide game@)
(unit (define game@ (unit (import) (export)
(import)
(export)
;; Number of decks to use ;; Number of decks to use
(define DECK-COUNT 4) (define DECK-COUNT 4)
;; Region layout constants ;; Region layout constants
(define MARGIN 10) (define MARGIN 10)
(define SUBMARGIN 10) (define SUBMARGIN 10)
(define LABEL-H 15) (define LABEL-H 15)
;; Randomize ;; Randomize
(random-seed (modulo (current-milliseconds) 10000)) (random-seed (modulo (current-milliseconds) 10000))
;; Reshuffle when 3/4 of the deck is used ;; Reshuffle when 3/4 of the deck is used
(define min-deck-size (/ (* DECK-COUNT 52) 4)) (define min-deck-size (/ (* DECK-COUNT 52) 4))
;; Set up the table ;; Set up the table
(define t (make-table "Blackjack" 6 3)) (define t (make-table "Blackjack" 6 3))
(define status-pane (send t create-status-pane)) (define status-pane (send t create-status-pane))
(send t add-help-button status-pane '("games" "blackjack") "Blackjack Help" #f) (send t add-help-button status-pane '("games" "blackjack") "Blackjack Help" #f)
(send t show #t) (send t show #t)
(send t set-double-click-action #f) (send t set-double-click-action #f)
(send t set-button-action 'left 'drag/one) (send t set-button-action 'left 'drag/one)
(send t set-button-action 'middle 'drag/one) (send t set-button-action 'middle 'drag/one)
(send t set-button-action 'right 'drag/one) (send t set-button-action 'right 'drag/one)
;; Get table width & height ;; Get table width & height
(define w (send t table-width)) (define w (send t table-width))
(define h (send t table-height)) (define h (send t table-height))
;; Build the deck ;; Build the deck
(define deck (define deck
(let loop ([n DECK-COUNT]) (let loop ([n DECK-COUNT])
(if (zero? n) (if (zero? n)
null null
(append (make-deck) (loop (sub1 n)))))) (append (make-deck) (loop (sub1 n))))))
;; Card width & height ;; Card width & height
(define cw (send (car deck) card-width)) (define cw (send (car deck) card-width))
(define ch (send (car deck) card-height)) (define ch (send (car deck) card-height))
;; Size of buttons ;; Size of buttons
(define BUTTON-HEIGHT 16) (define BUTTON-HEIGHT 16)
(define BUTTON-WIDTH cw) (define BUTTON-WIDTH cw)
;; Cards are not movable ;; Cards are not movable
(for-each (for-each (lambda (card) (send* card (user-can-move #f) (user-can-flip #f)))
(lambda (card) deck)
(send card user-can-move #f)
(send card user-can-flip #f))
deck)
;; Set up card regions ;; Set up card regions
(define deck-region (define deck-region
(make-region MARGIN MARGIN (make-region MARGIN MARGIN cw ch #f #f))
cw ch #f #f))
(define discard-region (define discard-region
(make-region (- w cw MARGIN) MARGIN (make-region (- w cw MARGIN) MARGIN cw ch #f #f))
cw ch #f #f))
(define dealer-region (define dealer-region
(make-region (+ cw (* 2 MARGIN)) MARGIN (make-region (+ cw (* 2 MARGIN)) MARGIN
(- w (* 2 cw) (* 4 MARGIN)) ch (- w (* 2 cw) (* 4 MARGIN)) ch
#f #f)) #f #f))
(define player-region (define player-region
(make-region (+ cw (* 2 MARGIN)) (- h (* 2 MARGIN) ch BUTTON-HEIGHT) (make-region (+ cw (* 2 MARGIN)) (- h (* 2 MARGIN) ch BUTTON-HEIGHT)
(- w (* 2 cw) (* 4 MARGIN)) ch (- w (* 2 cw) (* 4 MARGIN)) ch
#f #f)) #f #f))
;; In case of split, we need more regions ;; In case of split, we need more regions
(define ww (* 3/2 cw)) (define ww (* 3/2 cw))
(define player-2-region (define player-2-region
(make-region MARGIN (region-y player-region) (make-region MARGIN (region-y player-region)
(- w ww (* 3 MARGIN)) (region-h player-region) (- w ww (* 3 MARGIN)) (region-h player-region)
#f #f)) #f #f))
(define player-2-wait-region (define player-2-wait-region
(make-region (region-x player-2-region) (region-y player-2-region) (make-region (region-x player-2-region) (region-y player-2-region)
ww (region-h player-2-region) ww (region-h player-2-region)
#f #f)) #f #f))
(define player-1-region (define player-1-region
(make-region (- w MARGIN (region-w player-2-region)) (region-y player-2-region) (make-region (- w MARGIN (region-w player-2-region)) (region-y player-2-region)
(region-w player-2-region) (region-h player-2-region) (region-w player-2-region) (region-h player-2-region)
#f #f)) #f #f))
(define player-1-wait-region (define player-1-wait-region
(make-region (- (+ (region-x player-1-region) (region-w player-1-region)) ww) (make-region (- (+ (region-x player-1-region) (region-w player-1-region)) ww)
(region-y player-1-region) (region-y player-1-region)
ww (region-h player-1-region) ww (region-h player-1-region)
#f #f)) #f #f))
(define (make-border-region r) (define (make-border-region r)
(define hm (/ MARGIN 2)) (define hm (/ MARGIN 2))
(make-region (- (region-x r) hm) (- (region-y r) hm) (make-region (- (region-x r) hm) (- (region-y r) hm)
(+ (region-w r) MARGIN) (+ (region-h r) MARGIN) (+ (region-w r) MARGIN) (+ (region-h r) MARGIN)
"" #f)) "" #f))
(define player-1-border (make-border-region player-1-region)) (define player-1-border (make-border-region player-1-region))
(define player-2-border (make-border-region player-2-region)) (define player-2-border (make-border-region player-2-region))
;; Player buttons ;; Player buttons
(define (make-button title pos) (define (make-button title pos)
(make-button-region (+ (/ (- w (* 4 BUTTON-WIDTH) (* 3 MARGIN)) 2) (make-button-region (+ (/ (- w (* 4 BUTTON-WIDTH) (* 3 MARGIN)) 2)
(* pos (+ BUTTON-WIDTH MARGIN))) (* pos (+ BUTTON-WIDTH MARGIN)))
(- h MARGIN BUTTON-HEIGHT) (- h MARGIN BUTTON-HEIGHT)
BUTTON-WIDTH BUTTON-HEIGHT BUTTON-WIDTH BUTTON-HEIGHT
title void)) title void))
(define hit-button (make-button "Hit" 1)) (define hit-button (make-button "Hit" 1))
(define stand-button (make-button "Stand" 2)) (define stand-button (make-button "Stand" 2))
(define split-button (make-button "Split" 0)) (define split-button (make-button "Split" 0))
(define double-button (make-button "Double" 3)) (define double-button (make-button "Double" 3))
;; Put the cards on the table ;; Put the cards on the table
(send t add-cards-to-region deck deck-region) (send t add-cards-to-region deck deck-region)
;; Function to compute the normal or minimum value of a card ;; Function to compute the normal or minimum value of a card
(define (min-card-value c) (define (min-card-value c)
(let ([v (send c get-value)]) (let ([v (send c get-value)]) (if (> v 10) 10 v)))
(if (> v 10)
10
v)))
;; Function to compute the value of a hand, counting aces as 1 or 11 ;; Function to compute the value of a hand, counting aces as 1 or 11
;; to get the highest total possible under 21 ;; to get the highest total possible under 21
(define (best-total l) (define (best-total l)
(let* ([ace? (lambda (is?) (lambda (c) (eq? is? (= (send c get-value) 1))))] (let* ([ace? (lambda (is?) (lambda (c) (eq? is? (= (send c get-value) 1))))]
[aces (filter (ace? #t) l)] [aces (filter (ace? #t) l)]
[others (filter (ace? #f) l)] [others (filter (ace? #f) l)]
[base (apply + (map min-card-value others))]) [base (apply + (map min-card-value others))])
(let loop ([l aces][base base]) (let loop ([l aces][base base])
(cond (cond [(null? l) base]
[(null? l) base] [(<= (+ base (* (length aces) 11)) 21)
[(<= (+ base (* (length aces) 11)) 21) (+ base (* (length aces) 11))]
(+ base (* (length aces) 11))] [else (loop (cdr l) (add1 base))]))))
[else (loop (cdr l) (add1 base))]))))
;; Function to test whether a hand is a bust ;; Function to test whether a hand is a bust
(define (bust? p) (define (bust? p)
(> (best-total p) 21)) (> (best-total p) 21))
;; Very simple betting... ;; Very simple betting...
(define money 100) (define money 100)
(define (update-money! d) (define (update-money! d)
(set! money (+ money d)) (set! money (+ money d))
(send t set-status (format "You have $~a. (Each bet is $2.)" money))) (send t set-status (format "You have $~a. (Each bet is $2.)" money)))
;; Let's play! ;; Let's play!
(let shuffle-loop () (let shuffle-loop ()
;; Shuffle the cards, none are discarded, yet ;; Shuffle the cards, none are discarded, yet
(let* ([deck (shuffle-list deck 7)] (let* ([deck (shuffle-list deck 7)]
[discard null] [discard null]
[deal (lambda (n) [deal (lambda (n)
(let deal ([n n]) (let deal ([n n])
(if (zero? n) (if (zero? n)
null null
(let ([c (car deck)]) (let ([c (car deck)])
(set! deck (cdr deck)) (set! deck (cdr deck))
(cons c (deal (sub1 n)))))))]) (cons c (deal (sub1 n)))))))])
;; Put the shuffled deck in place ;; Put the shuffled deck in place
(send t move-cards-to-region deck deck-region) (send t move-cards-to-region deck deck-region)
(send t stack-cards deck) (send t stack-cards deck)
;; Loop rounds over while there's enough cards in the deck ;; Loop rounds over while there's enough cards in the deck
(let loop () (let loop ()
;; All bets are $2 ;; All bets are $2
(update-money! -2) (update-money! -2)
;; Deal to player ;; Deal to player
(let ([p (deal 2)] (let ([p (deal 2)]
[p2 null] ; in case of splitting [p2 null] ; in case of splitting
[double? #f]) ; in case of doubling (flag is needed to adjust money) [double? #f]) ; in case of doubling (flag is needed to adjust money)
;; Move the player's cards into place and show them ;; Move the player's cards into place and show them
(send t move-cards-to-region p player-region) (send t move-cards-to-region p player-region)
(send t cards-face-up p) (send t cards-face-up p)
;; Deal to dealer ;; Deal to dealer
(let ([d (deal 2)]) (let ([d (deal 2)])
;; Move the dealer's cards into place and show one ;; Move the dealer's cards into place and show one
(send t move-cards-to-region d dealer-region) (send t move-cards-to-region d dealer-region)
(send t card-face-up (car d)) (send t card-face-up (car d))
(let* ([continue (make-semaphore)] (let* ([continue (make-semaphore)]
;; Make a button in the center to show results ;; Make a button in the center to show results
[make-status [make-status
(lambda (title continue) (lambda (title continue)
(let ([r (make-button-region (let ([r (make-button-region
(/ (- w (* 2 cw)) 2) (/ (- w (* 2 cw)) 2)
(region-y hit-button) (region-y hit-button)
(* 2 cw) BUTTON-HEIGHT (* 2 cw) BUTTON-HEIGHT
title #f)]) title #f)])
(set-region-callback! r (lambda () (set-region-callback! r (lambda ()
(send t remove-region r) (send t remove-region r)
(semaphore-post continue)))
r))]
;; Done with hand:
[done
(lambda (title continue)
(send t remove-region hit-button)
(send t remove-region stand-button)
(send t add-region (make-status title continue)))]
;; Compute winnings (not called for busts by the player)
[finish
(lambda (p blackjack?)
(let ([pt (best-total p)]
[dt (best-total d)]
[continue (make-semaphore)])
(cond
[(or (> dt 21) (> pt dt))
(update-money! (if blackjack? 5 (if double? 8 4)))
(done (if blackjack?
"Blackjack"
"You Win")
continue)]
[(> dt pt)
(done (if blackjack?
"Dealer Blackjack"
"You Lose")
continue)]
[else (update-money! (if double? 4 2))
(done "Push" continue)])
(yield continue)))]
;; Done with the first hand of a split
[finish-split
(lambda (p player-region player-wait-region player-border)
(unless (bust? p)
(send t move-cards-to-region p player-region)
(send t add-region player-border)
(finish p #f)
(send t remove-region player-border)
(send t move-cards-to-region p player-wait-region)))]
;; Player busts
[bust (lambda ()
(done "Bust" continue))]
;; Bust in one hand of a split
[local-bust (lambda ()
(let ([cont (make-semaphore)])
(done "Bust" cont)
(yield cont)))]
;; Callback for the hit button; the button's callback
;; is changed for diferent modes: normal, split part 1, or split part 2
[make-hit-callback
(lambda (get-p set-p! player-region bust)
(lambda ()
(send t remove-region double-button)
(send t remove-region split-button)
(set-p! (append (deal 1) (get-p)))
(send t stack-cards (get-p))
(send t move-cards-to-region (get-p) player-region)
(send t cards-face-up (get-p))
;; Check for bust
(when (bust? (get-p))
(bust))))])
;; Blackjack by player or dealer?
(if (or (= 21 (best-total p))
(= 21 (best-total d)))
(begin
;; Show the dealers cards...
(send t cards-face-up d)
;; ... and compute the result
(finish p #t))
(begin
;; Three basic actions are allowed:
(send t add-region hit-button)
(send t add-region stand-button)
(send t add-region double-button)
;; Set the callbacks for normal (unsplit) hands
(set-region-callback! hit-button
(make-hit-callback
(lambda () p)
(lambda (v) (set! p v))
player-region
bust))
(set-region-callback! stand-button
(lambda ()
(semaphore-post continue))) (semaphore-post continue)))
(set-region-callback! double-button r))]
(lambda () ;; Done with hand:
;; Note the double for adjusting money on a win [done
(set! double? #t) (lambda (title continue)
;; Double the bet (send t remove-region hit-button)
(update-money! -2) (send t remove-region stand-button)
;; Deal one more card (send t add-region (make-status title continue)))]
((region-callback hit-button)) ;; Compute winnings (not called for busts by the player)
;; No more cards or actions, but if the player busted, the hit [finish
;; callback has already continued (lambda (p blackjack?)
(unless (bust? p) (let ([pt (best-total p)]
(semaphore-post continue)))) [dt (best-total d)]
;; Split allowed? [continue (make-semaphore)])
(when (= (min-card-value (car p)) (min-card-value (cadr p))) (cond
;; Yes, we can split. If the player hits the split button, [(or (> dt 21) (> pt dt))
;; we have to split the cards, deal one more to each split (update-money! (if blackjack? 5 (if double? 8 4)))
;; half and adjust the callbacks for hit and stand. (done (if blackjack?
;; (If aces are split, the round is over.) "Blackjack"
(send t add-region split-button) "You Win")
(set-region-callback! split-button continue)]
(lambda () [(> dt pt)
;; Double our bet... (done (if blackjack?
(update-money! -2) "Dealer Blackjack"
;; Split the hand "You Lose")
(set! p2 (list (cadr p))) continue)]
(set! p (list (car p))) [else (update-money! (if double? 4 2))
;; Move the split halves to the "waiting" area. The (done "Push" continue)])
;; active area is reserved for hands that are being (yield continue)))]
;; played ;; Done with the first hand of a split
(send t move-cards-to-region p player-1-wait-region) [finish-split
(send t move-cards-to-region p2 player-2-wait-region) (lambda (p player-region player-wait-region player-border)
;; Deal one more card to each half and move them into place (unless (bust? p)
(set! p (append (deal 1) p)) (send t move-cards-to-region p player-region)
(set! p2 (append (deal 1) p2)) (send t add-region player-border)
(send t stack-cards p) (finish p #f)
(send t stack-cards p2) (send t remove-region player-border)
(send t move-cards-to-region p player-1-wait-region) (send t move-cards-to-region p player-wait-region)))]
(send t move-cards-to-region p2 player-2-wait-region) ;; Player busts
;; Show the newly dealt cards [bust (lambda ()
(send t flip-cards (list (car p) (car p2))) (done "Bust" continue))]
;; No more splits, no doubling ;; Bust in one hand of a split
(send t remove-region split-button) [local-bust (lambda ()
(send t remove-region double-button) (let ([cont (make-semaphore)])
;; Function called when the last split hand is done (done "Bust" cont)
(let* ([close-split (yield cont)))]
(lambda () ;; Callback for the hit button; the button's callback is
;; Unhilite the second hand ;; changed for diferent modes: normal, split part 1, or split
(send t remove-region player-2-border) ;; part 2
(send t move-cards-to-region p2 player-2-wait-region) [make-hit-callback
;; Let the main loop finish up (lambda (get-p set-p! player-region bust)
(semaphore-post continue))] (lambda ()
;; Callback to swicth from the first split hand to the second (send t remove-region double-button)
[switch (send t remove-region split-button)
(lambda () (set-p! (append (deal 1) (get-p)))
;; Unhilite the first hand (send t stack-cards (get-p))
(send t remove-region player-1-border) (send t move-cards-to-region (get-p) player-region)
(send t move-cards-to-region p player-1-wait-region) (send t cards-face-up (get-p))
;; Hilite the second hand ;; Check for bust
(send t move-cards-to-region p2 player-2-region) (when (bust? (get-p)) (bust))))])
(send t add-region player-2-border) ;; Blackjack by player or dealer?
;; Adjust callbacks to operate on the second hand (if (or (= 21 (best-total p))
(set-region-callback! (= 21 (best-total d)))
hit-button (begin
(make-hit-callback (lambda () p2) ;; Show the dealers cards...
(lambda (v) (set! p2 v)) (send t cards-face-up d)
player-2-region ;; ... and compute the result
(lambda () (finish p #t))
(local-bust) (begin
(close-split)))) ;; Three basic actions are allowed:
(set-region-callback! (send t add-region hit-button)
stand-button (send t add-region stand-button)
close-split))]) (send t add-region double-button)
;; Did we split aces? ;; Set the callbacks for normal (unsplit) hands
(if (= 1 (send (cadr p) get-value)) (set-region-callback!
;; Split aces; no more cards hit-button
(semaphore-post continue) (make-hit-callback (lambda () p)
(begin (lambda (v) (set! p v))
;; The first of the split hands is ready to go player-region
(send t move-cards-to-region p player-1-region) bust))
;; Hilite the first hand (set-region-callback!
(send t add-region player-1-border) stand-button
;; Adjust callbacks to work on the first of a split hand (lambda () (semaphore-post continue)))
(set-region-callback! (set-region-callback!
hit-button double-button
(make-hit-callback (lambda () p) (lambda ()
(lambda (v) (set! p v)) ;; Note the double for adjusting money on a win
player-1-region (set! double? #t)
(lambda () ;; Double the bet
(local-bust) (update-money! -2)
(switch) ;; Deal one more card
(send t add-region hit-button) ((region-callback hit-button))
(send t add-region stand-button)))) ;; No more cards or actions, but if the player busted, the
(set-region-callback! ;; hit callback has already continued
stand-button (unless (bust? p) (semaphore-post continue))))
switch))))))) ;; Split allowed?
;; Wait until the player is done (when (= (min-card-value (car p)) (min-card-value (cadr p)))
(yield continue) ;; Yes, we can split. If the player hits the split button, we
;; No more player actions; get rid of the buttons ;; have to split the cards, deal one more to each split half
(send t remove-region hit-button) ;; and adjust the callbacks for hit and stand. (If aces are
(send t remove-region stand-button) ;; split, the round is over.)
(send t remove-region double-button) (send t add-region split-button)
(send t remove-region split-button) (set-region-callback!
;; If all the player's hards are bust, the dealer doesn't do anything split-button
(unless (and (bust? p) (lambda ()
(or (null? p2) ;; Double our bet...
(bust? p2))) (update-money! -2)
;; Show the dealer's starting hand ;; Split the hand
(send t card-face-up (cadr d)) (set! p2 (list (cadr p)))
(let loop () (set! p (list (car p)))
;; Hit on 16 or lower, stand on 17 and higher ;; Move the split halves to the "waiting" area. The active
(when (< (best-total d) 17) ;; area is reserved for hands that are being played
;; Hit the dealer (send t move-cards-to-region p player-1-wait-region)
(set! d (append (deal 1) d)) (send t move-cards-to-region p2 player-2-wait-region)
(send t stack-cards d) ;; Deal one more card to each half and move them into
(send t move-cards-to-region d dealer-region) ;; place
(send t cards-face-up d) (set! p (append (deal 1) p))
(loop))) (set! p2 (append (deal 1) p2))
(if (null? p2) (send t stack-cards p)
;; Finish normal game (adjusts winnings) (send t stack-cards p2)
(finish p #f) (send t move-cards-to-region p player-1-wait-region)
;; Finish split game (adjusts winnings for each hand) (send t move-cards-to-region p2 player-2-wait-region)
(begin ;; Show the newly dealt cards
(finish-split p player-1-region player-1-wait-region player-1-border) (send t flip-cards (list (car p) (car p2)))
(finish-split p2 player-2-region player-2-wait-region player-2-border)))))) ;; No more splits, no doubling
;; Move all the discarded cards to the back (send t remove-region split-button)
(unless (null? discard) (send t remove-region double-button)
(send t card-to-back (car discard)) ;; Function called when the last split hand is done
(send t stack-cards discard)) (let* ([close-split
;; Discard all the cards we used (lambda ()
(set! discard (append p p2 d discard)) ;; Unhilite the second hand
(send t cards-face-down discard) (send t remove-region player-2-border)
(send t move-cards-to-region discard discard-region) (send t move-cards-to-region p2 player-2-wait-region)
;; Go again. Check whether we should reshuffle the deck or keep going with this one ;; Let the main loop finish up
(if (< (length deck) min-deck-size) (semaphore-post continue))]
(begin ;; Callback to swicth from the first split hand to
(send t move-cards-to-region deck discard-region) ;; the second
(shuffle-loop)) [switch
(loop))))))))))) (lambda ()
;; Unhilite the first hand
(send t remove-region player-1-border)
(send t move-cards-to-region p player-1-wait-region)
;; Hilite the second hand
(send t move-cards-to-region p2 player-2-region)
(send t add-region player-2-border)
;; Adjust callbacks to operate on the second hand
(set-region-callback!
hit-button
(make-hit-callback (lambda () p2)
(lambda (v) (set! p2 v))
player-2-region
(lambda ()
(local-bust)
(close-split))))
(set-region-callback!
stand-button
close-split))])
;; Did we split aces?
(if (= 1 (send (cadr p) get-value))
;; Split aces; no more cards
(semaphore-post continue)
(begin
;; The first of the split hands is ready to go
(send t move-cards-to-region p player-1-region)
;; Hilite the first hand
(send t add-region player-1-border)
;; Adjust callbacks to work on the first of a split
;; hand
(set-region-callback!
hit-button
(make-hit-callback (lambda () p)
(lambda (v) (set! p v))
player-1-region
(lambda ()
(local-bust)
(switch)
(send t add-region hit-button)
(send t add-region stand-button))))
(set-region-callback! stand-button switch)))))))
;; Wait until the player is done
(yield continue)
;; No more player actions; get rid of the buttons
(send t remove-region hit-button)
(send t remove-region stand-button)
(send t remove-region double-button)
(send t remove-region split-button)
;; If all the player's hards are bust, the dealer doesn't do
;; anything
(unless (and (bust? p) (or (null? p2) (bust? p2)))
;; Show the dealer's starting hand
(send t card-face-up (cadr d))
(let loop ()
;; Hit on 16 or lower, stand on 17 and higher
(when (< (best-total d) 17)
;; Hit the dealer
(set! d (append (deal 1) d))
(send t stack-cards d)
(send t move-cards-to-region d dealer-region)
(send t cards-face-up d)
(loop)))
(if (null? p2)
;; Finish normal game (adjusts winnings)
(finish p #f)
;; Finish split game (adjusts winnings for each hand)
(begin
(finish-split p player-1-region player-1-wait-region player-1-border)
(finish-split p2 player-2-region player-2-wait-region player-2-border))))))
;; Move all the discarded cards to the back
(unless (null? discard)
(send t card-to-back (car discard))
(send t stack-cards discard))
;; Discard all the cards we used
(set! discard (append p p2 d discard))
(send t cards-face-down discard)
(send t move-cards-to-region discard discard-region)
;; Go again. Check whether we should reshuffle the deck or keep
;; going with this one
(if (< (length deck) min-deck-size)
(begin (send t move-cards-to-region deck discard-region)
(shuffle-loop))
(loop))))))))
))

29
collects/games/blackjack/doc.txt
View File

@ -1,27 +1,26 @@
** To play _Blackjack_, run the "Games" application. ** ** To play Blackjack, run the "PLT Games" application.
Standard Blackjack rules, plus the following specifics: Standard Blackjack rules, plus the following specifics:
* 1 player (not counting the dealer) * 1 player (not counting the dealer)
* 4 decks, reshuffled after 3/4 of the cards are used * 4 decks, reshuffled after 3/4 of the cards are used
* Dealer stands on soft 17s * Dealer stands on soft 17s
* Splitting is allowed only on the first two cards, and only if * Splitting is allowed only on the first two cards, and only if they
they are equal; 10 and the face cards are all considered equal are equal; 10 and the face cards are all considered equal for
for splitting splitting
* Doubling is allowed on all unsplit hands, not on split hands * Doubling is allowed on all unsplit hands, not on split hands
* No blackjacks after splitting * No blackjacks after splitting
* No surrender * No surrender
* No insurance * No insurance
* No maximum under-21 hand size * No maximum under-21 hand size
* Dealer's second card is not revealed if the player busts (or
both halves of a split hand bust)
* Dealer's second card is not revealed if the player busts (or both
halves of a split hand bust)

732
collects/games/checkers/checkers.ss
View File

@ -1,244 +1,238 @@
(module checkers mzscheme #lang mzscheme
(require (lib "gl-board.ss" "games" "gl-board-game")
(lib "class.ss")
(lib "math.ss")
(lib "mred.ss" "mred")
(lib "gl-vectors.ss" "sgl")
(prefix gl- (lib "sgl.ss" "sgl"))
(lib "gl.ss" "sgl")
(lib "array.ss" "srfi" "25")
(lib "unit.ss")
(lib "include-bitmap.ss" "mrlib")
"honu-bitmaps.ss")
(provide game@) (require (lib "gl-board.ss" "games" "gl-board-game")
(lib "class.ss")
(lib "math.ss")
(lib "mred.ss" "mred")
(lib "unit.ss")
(lib "gl-vectors.ss" "sgl")
(prefix gl- (lib "sgl.ss" "sgl"))
(lib "gl.ss" "sgl")
(lib "array.ss" "srfi" "25")
(lib "include-bitmap.ss" "mrlib")
"honu-bitmaps.ss")
(provide game@)
(define-struct image (width height rgba)) (define-struct image (width height rgba))
(define (argb->rgba argb) (define (argb->rgba argb)
(let* ((length (bytes-length argb)) (let* ([length (bytes-length argb)]
(rgba (make-gl-ubyte-vector length))) [rgba (make-gl-ubyte-vector length)])
(let loop ((i 0)) (let loop ((i 0))
(when (< i length) (when (< i length)
(gl-vector-set! rgba (+ i 0) (bytes-ref argb (+ i 1))) (gl-vector-set! rgba (+ i 0) (bytes-ref argb (+ i 1)))
(gl-vector-set! rgba (+ i 1) (bytes-ref argb (+ i 2))) (gl-vector-set! rgba (+ i 1) (bytes-ref argb (+ i 2)))
(gl-vector-set! rgba (+ i 2) (bytes-ref argb (+ i 3))) (gl-vector-set! rgba (+ i 2) (bytes-ref argb (+ i 3)))
(gl-vector-set! rgba (+ i 3) (bytes-ref argb (+ i 0))) (gl-vector-set! rgba (+ i 3) (bytes-ref argb (+ i 0)))
(loop (+ i 4)))) (loop (+ i 4))))
rgba)) rgba))
(define (bitmap->argb bmp) (define (bitmap->argb bmp)
(let* ((width (send bmp get-width)) (let* ([width (send bmp get-width)]
(height (send bmp get-height)) [height (send bmp get-height)]
(argb (make-bytes (* 4 width height) 255)) [argb (make-bytes (* 4 width height) 255)]
(dc (make-object bitmap-dc% bmp))) [dc (make-object bitmap-dc% bmp)])
(send dc get-argb-pixels 0 0 width height argb #f) (send dc get-argb-pixels 0 0 width height argb #f)
(when (send bmp get-loaded-mask) (when (send bmp get-loaded-mask)
(send dc set-bitmap (send bmp get-loaded-mask)) (send dc set-bitmap (send bmp get-loaded-mask))
(send dc get-argb-pixels 0 0 width height argb #t)) (send dc get-argb-pixels 0 0 width height argb #t))
(send dc set-bitmap #f) (send dc set-bitmap #f)
argb)) argb))
(define (bitmap->image bmp) (define (bitmap->image bmp)
(make-image (send bmp get-width) (send bmp get-height) (make-image (send bmp get-width) (send bmp get-height)
(argb->rgba (bitmap->argb bmp)))) (argb->rgba (bitmap->argb bmp))))
(define light-square-img (bitmap->image (include-bitmap "light.jpg"))) (define light-square-img (bitmap->image (include-bitmap "light.jpg")))
(define light-square-color (gl-float-vector .7216 .6471 .5176 1)) (define light-square-color (gl-float-vector .7216 .6471 .5176 1))
(define dark-square-img (bitmap->image (include-bitmap "dark.jpg"))) (define dark-square-img (bitmap->image (include-bitmap "dark.jpg")))
(define dark-square-color (gl-float-vector .4745 .3569 .2627 1)) (define dark-square-color (gl-float-vector .4745 .3569 .2627 1))
(define (color-name->vector name darken?) (define (color-name->vector name darken?)
(let ([color (send the-color-database find-color name)] (let ([color (send the-color-database find-color name)]
[adj (if darken? sqr values)]) [adj (if darken? sqr values)])
(unless color (unless color
(error 'color-name->vector "could not find ~e" name)) (error 'color-name->vector "could not find ~e" name))
(gl-float-vector (adj (/ (send color red) 255)) (gl-float-vector (adj (/ (send color red) 255))
(adj (/ (send color green) 255)) (adj (/ (send color green) 255))
(adj (/ (send color blue) 255)) (adj (/ (send color blue) 255))
1.0))) 1.0)))
(define light-checker-img (bitmap->image honu-down-bitmap)) (define light-checker-img (bitmap->image honu-down-bitmap))
(define dark-checker-img (bitmap->image honu-bitmap)) (define dark-checker-img (bitmap->image honu-bitmap))
(define-struct space-info (x y light?)) (define-struct space-info (x y light?))
(define-struct piece-info (x y color king?) (make-inspector)) (define-struct piece-info (x y color king?) (make-inspector))
(define-struct moves (list forced-jump?)) (define-struct moves (list forced-jump?))
(define-signature model^ (define-signature model^
(move)) (move))
(define-signature view^ (define-signature view^
(add-space add-piece remove-piece move-piece set-turn show)) (add-space add-piece remove-piece move-piece set-turn show))
(define-unit view@ (define-unit view@
(import model^) (import model^)
(export view^) (export view^)
(define (get-space-draw-fn space) (define (get-space-draw-fn space)
(let* ((list-id (get-square-dl (space-info-light? space) (let* ([list-id (get-square-dl (space-info-light? space)
(send texture-box get-value))) (send texture-box get-value))]
(sx (space-info-x space)) [sx (space-info-x space)]
(sy (space-info-y space))) [sy (space-info-y space)])
(lambda () (lambda ()
(gl-push-matrix) (gl-push-matrix)
(gl-translate sx sy 0) (gl-translate sx sy 0)
(gl-call-list list-id) (gl-call-list list-id)
(gl-pop-matrix)))) (gl-pop-matrix))))
(define (add-space space) (define (add-space space)
(send board add-space (get-space-draw-fn space) space)) (send board add-space (get-space-draw-fn space) space))
(define (get-piece-draw-fn piece glow?) (define (get-piece-draw-fn piece glow?)
(let ((list-id (get-checker-dl (eq? 'red (piece-info-color piece)) (let ([list-id (get-checker-dl (eq? 'red (piece-info-color piece))
(piece-info-king? piece) (piece-info-king? piece)
(send texture-box get-value)))) (send texture-box get-value))])
(if glow? (if glow?
(lambda (for-shadow?) (lambda (for-shadow?)
(gl-material-v 'front 'emission (gl-float-vector 0.15 0.15 0.15 1.0)) (gl-material-v 'front 'emission (gl-float-vector 0.15 0.15 0.15 1.0))
(gl-call-list ((if for-shadow? cdr car) list-id)) (gl-call-list ((if for-shadow? cdr car) list-id))
(gl-material-v 'front 'emission (gl-float-vector 0.0 0.0 0.0 1.0))) (gl-material-v 'front 'emission (gl-float-vector 0.0 0.0 0.0 1.0)))
(lambda (for-shadow?) (lambda (for-shadow?)
(gl-call-list ((if for-shadow? cdr car) list-id)))))) (gl-call-list ((if for-shadow? cdr car) list-id))))))
(define add-piece (define add-piece
(case-lambda (case-lambda
((piece) (add-piece piece #f)) [(piece) (add-piece piece #f)]
((piece glow?) [(piece glow?)
(send board add-piece (+ .5 (piece-info-x piece)) (+ .5 (piece-info-y piece)) 0.0 (send board add-piece
(get-piece-draw-fn piece glow?) (+ .5 (piece-info-x piece)) (+ .5 (piece-info-y piece)) 0.0
piece)))) (get-piece-draw-fn piece glow?)
piece)]))
(define (move-piece from to-x to-y) (define (move-piece from to-x to-y)
(remove-piece from) (remove-piece from)
(add-piece (make-piece-info to-x to-y (piece-info-color from) (piece-info-king? from)))) (add-piece (make-piece-info to-x to-y
(piece-info-color from)
(piece-info-king? from))))
(define (remove-piece p) (define (remove-piece p)
(send board remove-piece p)) (send board remove-piece p))
(define (internal-move old move-to) (define (internal-move old move-to)
(when (piece-info? old) (when (piece-info? old) (move old move-to)))
(move old move-to)))
(define (set-turn turn moves) (define (set-turn turn moves)
(let* ([pieces (send board get-pieces)]) (let ([pieces (send board get-pieces)])
(for-each (lambda (p) (for-each (lambda (p)
(send board set-piece-draw p (send board set-piece-draw p (get-piece-draw-fn p #f))
(get-piece-draw-fn p #f)) (send board enable-piece p #f))
(send board enable-piece p #f)) pieces)
pieces) (for-each (lambda (p)
(for-each (lambda (p) (send board set-piece-draw p (get-piece-draw-fn p #t))
(send board set-piece-draw p (send board enable-piece p #t))
(get-piece-draw-fn p #t)) (moves-list moves)))
(send board enable-piece p #t)) (send msg set-label
(moves-list moves))) (if (null? (moves-list moves))
(send msg set-label (format "~a wins!" (if (eq? turn 'red) "Black" "Red"))
(if (null? (moves-list moves)) (format "~a's turn~a"
(format "~a wins!" (if (eq? turn 'red) "Black" "Red")) (if (eq? turn 'red) "Red" "Black")
(format "~a's turn~a" (if (moves-forced-jump? moves) " - must take jump" "")))))
(if (eq? turn 'red) "Red" "Black")
(if (moves-forced-jump? moves)
" - must take jump"
"")))))
(define f (new frame% (label "Checkers") (width 800) (height 600))) (define f (new frame% (label "Checkers") (width 800) (height 600)))
(define board (define board
(new gl-board% (parent f) (who "Checkers") (new gl-board% (parent f) (who "Checkers")
(min-x 0.0) (max-x 8.0) (min-y 0.0) (max-y 8.0) (min-x 0.0) (max-x 8.0) (min-y 0.0) (max-y 8.0)
(lift .35) (lift .35)
(move internal-move))) (move internal-move)))
(define hp (new horizontal-pane% (parent f) (stretchable-height #f))) (define hp (new horizontal-pane% (parent f) (stretchable-height #f)))
(define msg (define msg
(new message% (label "") (parent hp) (stretchable-width #t))) (new message% (label "") (parent hp) (stretchable-width #t)))
(define texture-box (define texture-box
(new check-box% (label "Textured") (parent hp) (new check-box% (label "Textured") (parent hp)
(callback (callback
(lambda (box _) (lambda (box _)
(for-each (for-each
(lambda (s) (lambda (s)
(send board set-space-draw s (send board set-space-draw s (get-space-draw-fn s)))
(get-space-draw-fn s))) (send board get-spaces))
(send board get-spaces)) (for-each
(for-each (lambda (p)
(lambda (p) (send board set-piece-draw p
(send board set-piece-draw p (get-piece-draw-fn p (send board enabled? p))))
(get-piece-draw-fn p (send board enabled? p)))) (send board get-pieces))
(send board get-pieces)) (send board refresh)))))
(send board refresh))))) (new grow-box-spacer-pane% [parent hp])
(new grow-box-spacer-pane% [parent hp]) (send texture-box set-value #t)
(send texture-box set-value #t)
(define q (define q
(send board with-gl-context (send board with-gl-context (lambda () (gl-new-quadric))))
(lambda () (gl-new-quadric))))
(define-values (dark-tex light-tex dark-checker-tex light-checker-tex) (define-values (dark-tex light-tex dark-checker-tex light-checker-tex)
(send board with-gl-context (send board with-gl-context
(lambda () (lambda ()
(let ((x (glGenTextures 4))) (let ((x (glGenTextures 4)))
(values (values (gl-vector-ref x 0)
(gl-vector-ref x 0) (gl-vector-ref x 1)
(gl-vector-ref x 1) (gl-vector-ref x 2)
(gl-vector-ref x 2) (gl-vector-ref x 3))))))
(gl-vector-ref x 3))))))
(define (init-tex tex img) (define (init-tex tex img)
(send board with-gl-context (send board with-gl-context
(lambda ()
(glBindTexture GL_TEXTURE_2D tex)
(glTexParameteri GL_TEXTURE_2D GL_TEXTURE_MIN_FILTER GL_LINEAR)
(glTexParameteri GL_TEXTURE_2D GL_TEXTURE_MAG_FILTER GL_LINEAR)
(glTexParameteri GL_TEXTURE_2D GL_TEXTURE_WRAP_S GL_CLAMP)
(glTexParameteri GL_TEXTURE_2D GL_TEXTURE_WRAP_T GL_CLAMP)
(glTexImage2D GL_TEXTURE_2D 0 GL_RGBA (image-width img) (image-height img) 0
GL_RGBA GL_UNSIGNED_BYTE (image-rgba img)))))
(init-tex light-tex light-square-img)
(init-tex dark-tex dark-square-img)
(init-tex dark-checker-tex dark-checker-img)
(init-tex light-checker-tex light-checker-img)
(define (make-piece-dl color height tex shadow?)
(send board with-gl-context
(lambda ()
(let ((list-id (gl-gen-lists 1)))
(gl-quadric-draw-style q 'fill)
(gl-quadric-normals q 'smooth)
(gl-new-list list-id 'compile)
(when shadow?
(gl-disable 'lighting))
(gl-material-v 'front 'specular (gl-float-vector 1.0 1.0 1.0 1.0))
(gl-material 'front 'shininess 120.0)
(gl-material-v 'front 'ambient-and-diffuse color)
(gl-cylinder q .35 .35 height 25 1)
(gl-push-matrix)
(gl-translate 0.0 0.0 height)
(when (and tex (not shadow?))
(gl-enable 'texture-2d)
(glBindTexture GL_TEXTURE_2D tex)
(glTexEnvf GL_TEXTURE_ENV GL_TEXTURE_ENV_MODE GL_DECAL)
(gl-quadric-texture q #t))
(gl-disk q 0.0 .35 25 1)
(when (and tex (not shadow?))
(gl-quadric-texture q #f)
(glTexEnvf GL_TEXTURE_ENV GL_TEXTURE_ENV_MODE GL_MODULATE)
(gl-disable 'texture-2d))
(gl-pop-matrix)
(when shadow?
(gl-enable 'lighting))
(gl-end-list)
list-id))))
(define (make-tex-square-dl tex)
(send board with-gl-context
(lambda () (lambda ()
(let ((list-id (gl-gen-lists 1))) (glBindTexture GL_TEXTURE_2D tex)
(glTexParameteri GL_TEXTURE_2D GL_TEXTURE_MIN_FILTER GL_LINEAR)
(glTexParameteri GL_TEXTURE_2D GL_TEXTURE_MAG_FILTER GL_LINEAR)
(glTexParameteri GL_TEXTURE_2D GL_TEXTURE_WRAP_S GL_CLAMP)
(glTexParameteri GL_TEXTURE_2D GL_TEXTURE_WRAP_T GL_CLAMP)
(glTexImage2D GL_TEXTURE_2D 0 GL_RGBA
(image-width img) (image-height img) 0
GL_RGBA GL_UNSIGNED_BYTE (image-rgba img)))))
(init-tex light-tex light-square-img)
(init-tex dark-tex dark-square-img)
(init-tex dark-checker-tex dark-checker-img)
(init-tex light-checker-tex light-checker-img)
(define (make-piece-dl color height tex shadow?)
(send board with-gl-context
(lambda ()
(let ([list-id (gl-gen-lists 1)])
(gl-quadric-draw-style q 'fill)
(gl-quadric-normals q 'smooth)
(gl-new-list list-id 'compile)
(when shadow? (gl-disable 'lighting))
(gl-material-v 'front 'specular (gl-float-vector 1.0 1.0 1.0 1.0))
(gl-material 'front 'shininess 120.0)
(gl-material-v 'front 'ambient-and-diffuse color)
(gl-cylinder q .35 .35 height 25 1)
(gl-push-matrix)
(gl-translate 0.0 0.0 height)
(when (and tex (not shadow?))
(gl-enable 'texture-2d)
(glBindTexture GL_TEXTURE_2D tex)
(glTexEnvf GL_TEXTURE_ENV GL_TEXTURE_ENV_MODE GL_DECAL)
(gl-quadric-texture q #t))
(gl-disk q 0.0 .35 25 1)
(when (and tex (not shadow?))
(gl-quadric-texture q #f)
(glTexEnvf GL_TEXTURE_ENV GL_TEXTURE_ENV_MODE GL_MODULATE)
(gl-disable 'texture-2d))
(gl-pop-matrix)
(when shadow? (gl-enable 'lighting))
(gl-end-list)
list-id))))
(define (make-tex-square-dl tex)
(send board with-gl-context
(lambda ()
(let ([list-id (gl-gen-lists 1)])
(gl-new-list list-id 'compile) (gl-new-list list-id 'compile)
(gl-enable 'texture-2d) (gl-enable 'texture-2d)
(glBindTexture GL_TEXTURE_2D tex) (glBindTexture GL_TEXTURE_2D tex)
@ -258,10 +252,10 @@
(gl-end-list) (gl-end-list)
list-id)))) list-id))))
(define (make-square-dl color) (define (make-square-dl color)
(send board with-gl-context (send board with-gl-context
(lambda () (lambda ()
(let ((list-id (gl-gen-lists 1))) (let ([list-id (gl-gen-lists 1)])
(gl-new-list list-id 'compile) (gl-new-list list-id 'compile)
(gl-material-v 'front 'ambient-and-diffuse color) (gl-material-v 'front 'ambient-and-diffuse color)
(gl-begin 'polygon) (gl-begin 'polygon)
@ -273,14 +267,15 @@
(gl-end-list) (gl-end-list)
list-id)))) list-id))))
(define checkers (define checkers
(map (map (lambda (x)
(lambda (x) (let ([color (if (car x)
(let ((color (if (car x)
(color-name->vector "firebrick" #t) (color-name->vector "firebrick" #t)
(gl-float-vector 0.15 0.15 0.15 1.0))) (gl-float-vector 0.15 0.15 0.15 1.0))]
(height (if (cadr x) .4 .2)) [height (if (cadr x) .4 .2)]
(tex (if (caddr x) (if (car x) light-checker-tex dark-checker-tex) #f))) [tex (if (caddr x)
(if (car x) light-checker-tex dark-checker-tex)
#f)])
(cons x (cons (make-piece-dl color height tex #f) (cons x (cons (make-piece-dl color height tex #f)
(make-piece-dl color height tex #t))))) (make-piece-dl color height tex #t)))))
'((#f #f #f) '((#f #f #f)
@ -291,155 +286,142 @@
(#t #f #t) (#t #f #t)
(#t #t #f) (#t #t #f)
(#t #t #t)))) (#t #t #t))))
(define (get-checker-dl light? king? tex?) (define (get-checker-dl light? king? tex?)
(cdr (assoc (list light? king? tex?) checkers))) (cdr (assoc (list light? king? tex?) checkers)))
(define dark-square (cons (make-tex-square-dl dark-tex) (define dark-square (cons (make-tex-square-dl dark-tex)
(make-square-dl dark-square-color))) (make-square-dl dark-square-color)))
(define light-square (cons (make-tex-square-dl light-tex) (define light-square (cons (make-tex-square-dl light-tex)
(make-square-dl light-square-color))) (make-square-dl light-square-color)))
(define (get-square-dl light? tex?) (define (get-square-dl light? tex?)
(let ((getter (if tex? car cdr))) (let ((getter (if tex? car cdr)))
(getter (if light? light-square dark-square)))) (getter (if light? light-square dark-square))))
(define (show) (define (show) (send f show #t)))
(send f show #t)))
(define-unit model@ (define-unit model@
(import view^) (import view^)
(export model^) (export model^)
(define turn 'red) (define turn 'red)
(define board (make-array (shape 0 8 0 8) #f)) (define board (make-array (shape 0 8 0 8) #f))
(let loop ((i 0) (let loop ([i 0] [j 0])
(j 0)) (cond
(cond [(and (< j 8) (< i 8))
((and (< j 8) (< i 8)) (cond
(cond [(even? (+ i j))
((even? (+ i j)) (add-space (make-space-info j i #f))
(add-space (make-space-info j i #f)) (cond [(< i 3)
(cond
((< i 3)
(array-set! board j i (cons 'red #f)) (array-set! board j i (cons 'red #f))
(add-piece (make-piece-info j i 'red #f))) (add-piece (make-piece-info j i 'red #f))]
((> i 4) [(> i 4)
(array-set! board j i (cons 'black #f)) (array-set! board j i (cons 'black #f))
(add-piece (make-piece-info j i 'black #f))))) (add-piece (make-piece-info j i 'black #f))])]
(else [else (add-space (make-space-info j i #t))])
(add-space (make-space-info j i #t)))) (loop i (add1 j))]
(loop i (add1 j))) [(< i 8) (loop (add1 i) 0)]))
((< i 8) (loop (add1 i) 0))))
(define (other-color c) (define (other-color c)
(cond (if (eq? c 'red) 'black 'red))
((eq? c 'red) 'black)
(else 'red)))
(define (single-move-ok? direction from-x from-y to-x to-y) (define (single-move-ok? direction from-x from-y to-x to-y)
(and (= to-y (+ direction from-y)) (and (= to-y (+ direction from-y))
(= 1 (abs (- from-x to-x))))) (= 1 (abs (- from-x to-x)))))
(define (can-move? direction from-x from-y) (define (can-move? direction from-x from-y)
(and (<= 0 (+ from-y direction) 7) (and (<= 0 (+ from-y direction) 7)
(or (and (<= 0 (+ from-x 1) 7) (or (and (<= 0 (+ from-x 1) 7)
(not (array-ref board (+ from-x 1) (+ from-y direction)))) (not (array-ref board (+ from-x 1) (+ from-y direction))))
(and (<= 0 (+ from-x -1) 7) (and (<= 0 (+ from-x -1) 7)
(not (array-ref board (+ from-x -1) (+ from-y direction))))))) (not (array-ref board (+ from-x -1) (+ from-y direction)))))))
(define (get-jumped-piece color direction from-x from-y to-x to-y) (define (get-jumped-piece color direction from-x from-y to-x to-y)
(and (= to-y (+ direction direction from-y)) (and (= to-y (+ direction direction from-y))
(= 2 (abs (- from-x to-x))) (= 2 (abs (- from-x to-x)))
(let* ((jumped-x (+ from-x (/ (- to-x from-x) 2))) (let* ([jumped-x (+ from-x (/ (- to-x from-x) 2))]
(jumped-y (+ from-y direction)) [jumped-y (+ from-y direction)]
(jumped-piece (array-ref board jumped-x jumped-y))) [jumped-piece (array-ref board jumped-x jumped-y)])
(and jumped-piece (and jumped-piece
(eq? (other-color color) (car jumped-piece)) (eq? (other-color color) (car jumped-piece))
(make-piece-info jumped-x jumped-y (car jumped-piece) (cdr jumped-piece)))))) (make-piece-info jumped-x jumped-y
(car jumped-piece) (cdr jumped-piece))))))
(define (can-jump? direction from-color from-x from-y) (define (can-jump? direction from-color from-x from-y)
(let ((to-y (+ direction direction from-y)) (let ([to-y (+ direction direction from-y)]
(to-x1 (+ from-x 2)) [to-x1 (+ from-x 2)]
(to-x2 (- from-x 2))) [to-x2 (- from-x 2)])
(and (<= 0 to-y 7) (and (<= 0 to-y 7)
(or (and (<= 0 to-x1 7) (or (and (<= 0 to-x1 7)
(not (array-ref board to-x1 to-y)) (not (array-ref board to-x1 to-y))
(get-jumped-piece from-color direction (get-jumped-piece from-color direction
from-x from-y from-x from-y
to-x1 to-y)) to-x1 to-y))
(and (<= 0 to-x2) (and (<= 0 to-x2)
(not (array-ref board to-x2 to-y)) (not (array-ref board to-x2 to-y))
(get-jumped-piece from-color direction (get-jumped-piece from-color direction
from-x from-y from-x from-y
to-x2 to-y)))))) to-x2 to-y))))))
(define (fold-board f v)
(let iloop ([i 0] [v v])
(if (= i 8)
v
(let jloop ([j 0] [v v])
(if (= j 8)
(iloop (add1 i) v)
(jloop (add1 j) (if (even? (+ i j)) (f i j v) v)))))))
(define (fold-board f v) (define (get-jump-moves)
(let iloop ([i 0][v v]) (let ([direction (if (eq? turn 'red) 1 -1)])
(if (= i 8) (fold-board
v (lambda (i j l)
(let jloop ([j 0][v v]) (let ([p (array-ref board i j)])
(if (= j 8) (if (and p
(iloop (add1 i) v) (eq? (car p) turn)
(jloop (add1 j) (or (can-jump? direction turn i j)
(if (even? (+ i j)) (and (cdr p)
(f i j v) (can-jump? (- direction) turn i j))))
v))))))) (cons (make-piece-info i j turn (cdr p)) l)
l)))
null)))
(define (get-jump-moves) (define (get-moves)
(let ([direction (if (eq? turn 'red) 1 -1)]) (let ([jumps (get-jump-moves)])
(fold-board (if (pair? jumps)
(lambda (i j l) (make-moves jumps #t)
(let ([p (array-ref board i j)]) (make-moves
(if (and p (let ([direction (if (eq? turn 'red) 1 -1)])
(eq? (car p) turn) (fold-board
(or (can-jump? direction turn i j) (lambda (i j l)
(and (cdr p) (let ([p (array-ref board i j)])
(can-jump? (- direction) turn i j)))) (if (and p
(cons (make-piece-info i j turn (cdr p)) l) (eq? (car p) turn)
l))) (or (can-move? direction i j)
null))) (and (cdr p) (can-move? (- direction) i j))))
(cons (make-piece-info i j turn (cdr p)) l)
l)))
null))
#f))))
(define (get-moves) (define (move from to)
(let ([jumps (get-jump-moves)]) (let* ([to-x (inexact->exact (floor (gl-vector-ref to 0)))]
(if (pair? jumps) [to-y (inexact->exact (floor (gl-vector-ref to 1)))]
(make-moves jumps #t) [from-x (piece-info-x from)]
(make-moves [from-y (piece-info-y from)]
(let ([direction (if (eq? turn 'red) 1 -1)]) [from-color (piece-info-color from)]
(fold-board [from-king? (piece-info-king? from)]
(lambda (i j l) [to-king? (or from-king? (= to-y (if (eq? 'red from-color) 7 0)))]
(let ([p (array-ref board i j)]) [direction (if (eq? turn 'red) 1 -1)])
(if (and p (when (and (eq? turn from-color)
(eq? (car p) turn) (<= 0 to-x 7)
(or (can-move? direction i j) (<= 0 to-y 7)
(and (cdr p) (not (array-ref board to-x to-y)))
(can-move? (- direction) i j)))) (cond [(and (null? (get-jump-moves))
(cons (make-piece-info i j turn (cdr p)) l)
l)))
null))
#f))))
(define (move from to)
(let* ((to-x (inexact->exact (floor (gl-vector-ref to 0))))
(to-y (inexact->exact (floor (gl-vector-ref to 1))))
(from-x (piece-info-x from))
(from-y (piece-info-y from))
(from-color (piece-info-color from))
(from-king? (piece-info-king? from))
(to-king? (or from-king?
(if (eq? 'red from-color)
(= to-y 7)
(= to-y 0))))
(direction (if (eq? turn 'red) 1 -1)))
(when (and (eq? turn from-color)
(<= 0 to-x 7)
(<= 0 to-y 7)
(not (array-ref board to-x to-y)))
(cond
((and (null? (get-jump-moves))
(or (single-move-ok? direction from-x from-y to-x to-y) (or (single-move-ok? direction from-x from-y to-x to-y)
(and from-king? (and from-king?
(single-move-ok? (- direction) from-x from-y to-x to-y)))) (single-move-ok? (- direction) from-x from-y
to-x to-y))))
(move-piece from to-x to-y) (move-piece from to-x to-y)
(set! turn (other-color from-color)) (set! turn (other-color from-color))
(array-set! board to-x to-y (cons from-color to-king?)) (array-set! board to-x to-y (cons from-color to-king?))
@ -447,8 +429,9 @@
(when (and to-king? (not from-king?)) (when (and to-king? (not from-king?))
(remove-piece (make-piece-info to-x to-y from-color from-king?)) (remove-piece (make-piece-info to-x to-y from-color from-king?))
(add-piece (make-piece-info to-x to-y from-color to-king?))) (add-piece (make-piece-info to-x to-y from-color to-king?)))
(set-turn turn (get-moves))) (set-turn turn (get-moves))]
((or (get-jumped-piece from-color direction from-x from-y to-x to-y) [(or (get-jumped-piece from-color direction from-x from-y
to-x to-y)
(and from-king? (and from-king?
(get-jumped-piece from-color (- direction) from-x from-y to-x to-y))) (get-jumped-piece from-color (- direction) from-x from-y to-x to-y)))
=> =>
@ -462,25 +445,24 @@
(remove-piece (make-piece-info to-x to-y from-color from-king?)) (remove-piece (make-piece-info to-x to-y from-color from-king?))
(add-piece (make-piece-info to-x to-y from-color to-king?))) (add-piece (make-piece-info to-x to-y from-color to-king?)))
(cond (cond
((or (can-jump? direction from-color to-x to-y) [(or (can-jump? direction from-color to-x to-y)
(and from-king? (and from-king?
(can-jump? (- direction) from-color to-x to-y))) (can-jump? (- direction) from-color to-x to-y)))
(set-turn turn (make-moves (list (make-piece-info to-x to-y from-color to-king?)) #t))) (set-turn turn
(else (make-moves (list (make-piece-info
to-x to-y from-color to-king?))
#t))]
[else
(set! turn (other-color from-color)) (set! turn (other-color from-color))
(set-turn turn (get-moves)))))))))) (set-turn turn (get-moves))]))]))))
(set-turn turn (get-moves)) (set-turn turn (get-moves))
)
(define-unit show@
(import view^)
(export)
(show))
(define game@
(compound-unit/infer
(import)
(export)
(link view@ model@ show@)))
) )
(define-unit show@
(import view^)
(export)
(show))
(define game@
(compound-unit/infer (import) (export) (link view@ model@ show@)))

1215
collects/games/crazy8s/crazy8s.ss
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File diff suppressed because it is too large Load Diff

14
collects/games/crazy8s/doc.txt
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@ -1,24 +1,24 @@
** To play _Crazy 8s_, run the "Games" application. ** ** To play Crazy 8s, run the "PLT Games" application.
Try to get rid of all you cards by matching the value or suit of the Try to get rid of all you cards by matching the value or suit of the
top card in the discard pile. In the default mode, click a card to top card in the discard pile. In the default mode, click a card to
discard it; you can adjust the options so that you discard by dragging discard it; you can adjust the options so that you discard by dragging
a card from your hand to the discard pile. a card from your hand to the discard pile.
An 8 can be discarded at any time, and in that case, the player who An 8 can be discarded at any time, and in that case, the player who
discarded the 8 gets to pick any suit for it (hence the craziness of discarded the 8 gets to pick any suit for it (hence the craziness of
8s). When you discard an 8, a panel of buttons appears to the right of 8s). When you discard an 8, a panel of buttons appears to the right
the discard pile, so you can pick the suit. of the discard pile, so you can pick the suit.
A player can choose to draw a card instead of discarding, as long as A player can choose to draw a card instead of discarding, as long as
cards are left in the draw pile. A player's turn continues after cards are left in the draw pile. A player's turn continues after
drawing, so a player can continue drawing to find something to drawing, so a player can continue drawing to find something to
discard. In the default mode, click the face-down draw pile in the discard. In the default mode, click the face-down draw pile in the
middle of the table; you can adjust the options to that you draw by middle of the table; you can adjust the options to that you draw by
dragging it from the draw pile to your hand. dragging it from the draw pile to your hand.
If no cards are left in the deck, a player may pass instead of If no cards are left in the deck, a player may pass instead of
discarding. To pass, click the "Pass" button. discarding. To pass, click the "Pass" button.
The status line at the bottom of the window provides instructions as The status line at the bottom of the window provides instructions as
you go. you go.

1
collects/games/doors/doc.txt
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@ -1,4 +1,3 @@
_doors.ss_ _doors.ss_
The "doors.ss" library builds on "gl-board.ss" to support simple The "doors.ss" library builds on "gl-board.ss" to support simple

187
collects/games/games.ss
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@ -1,114 +1,97 @@
(module games mzscheme #lang scheme/gui
(require (lib "mred.ss" "mred")
(lib "class.ss")
(lib "unit.ss")
(lib "list.ss")
(lib "getinfo.ss" "setup")
(lib "bitmap-label.ss" "mrlib")
"show-help.ss")
(define game-mapping (require setup/getinfo mrlib/bitmap-label "show-help.ss")
(let ([games (let ([d (collection-path "games")])
(filter (lambda (f)
(let ([p (build-path d f)])
(and (directory-exists? p)
(with-handlers ([exn:fail? (lambda (x) #f)])
((get-info (list (string->path "games") f)) 'game (lambda () #f))))))
(directory-list d)))])
(map (lambda (g)
(let ([info (get-info `(,(string->path "games") ,g))])
(list (path->string g)
(info 'game (lambda () "wrong.ss"))
(info 'name (lambda () g))
(info 'game-set (lambda () "Other Games"))
(info 'game-icon (lambda () (build-path (collection-path "games" g)
(format "~a.png" g)))))))
games)))
(define f (new (class frame% (define-struct game (file name set icon))
(augment*
[on-close (lambda () (exit))])
(super-new))
[label "PLT Games"]
[style '(metal no-resize-border)]))
(define hp (make-object horizontal-panel% f))
(define main (make-object vertical-panel% hp))
(send f set-alignment 'left 'top)
(send f stretchable-width #f)
(send f stretchable-height #f)
(define main-horizontal-panel (make-object horizontal-panel% main)) (define gamedir (collection-path "games"))
(define (game-button p desc) (define (get-game game)
(let* ([collect (car desc)] (let* ([game (path-element->string game)]
[file (cadr desc)] [info (with-handlers ([exn:fail? (lambda (x) #f)])
[name (caddr desc)] (get-info (list "games" game)))]
[dir (with-handlers ([void (lambda (x) #f)]) [main (and info (info 'game (lambda () #f)))]
(collection-path "games" collect))]) [gamefile (lambda (f) (build-path gamedir game f))])
(when dir (and main
(make-object button% (make-game
((bitmap-label-maker name (list-ref desc 4)) (gamefile main)
p) (info 'name (lambda () (string-titlecase game)))
p (info 'game-set (lambda () "Other Games"))
(lambda (b e) (info 'game-icon (lambda () (gamefile (format "~a.png" game))))))))
(let ([game@ (dynamic-wind
begin-busy-cursor
(lambda () (dynamic-require (build-path dir file) 'game@))
end-busy-cursor)])
(let ([c (make-custodian)])
(parameterize ([current-custodian c])
(parameterize ([current-eventspace (make-eventspace)])
(queue-callback
(lambda ()
(exit-handler (lambda (v)
(custodian-shutdown-all c)))
(invoke-unit game@))))))))))))
(let ([game-mapping (sort game-mapping (define (run-game game)
(lambda (a b) (define c (make-custodian))
(string<? (list-ref a 3) (list-ref b 3))))]) (define run
(let loop ([l game-mapping]) (dynamic-wind
(unless (null? l) begin-busy-cursor
(let* ([set (list-ref (car l) 3)] (lambda ()
[p (new group-box-panel% (with-handlers ([exn? (lambda (e) (lambda () (raise e)))])
[label set] (let ([u (dynamic-require (game-file game) 'game@)])
[parent main-horizontal-panel])]) (lambda () (invoke-unit u)))))
(let xloop ([here (list (car l))] end-busy-cursor))
[l (cdr l)]) (parameterize* ([current-custodian c]
(if (and (pair? l) [current-namespace (make-gui-empty-namespace)]
(string=? set (list-ref (car l) 3))) [current-eventspace (make-eventspace)])
(xloop (cons (car l) here) (cdr l)) (queue-callback
(begin (lambda ()
(for-each (lambda (g) (game-button p g)) here) (exit-handler (lambda (v) (custodian-shutdown-all c)))
(loop l)))))))) (with-handlers ([exn? (lambda (e)
(message-box (format "Error in \"~a\""
(game-name game))
(exn-message e) f '(ok)))])
(run))))))
(for-each (lambda (p) (define games
(let ([pred (lambda (x y) (<= (send x min-width) (send y min-width)))]) (filter values (map get-game (directory-list gamedir))))
(send p change-children (lambda (l) (sort l pred)))))
(send main-horizontal-panel get-children))
(send main-horizontal-panel change-children (define game-sets
(lambda (l) (let ([ht (make-hash-table 'equal)])
(sort l (lambda (x y) (for ([g games])
(let ([l1 (length (send x get-children))] (let ([set (game-set g)])
[l2 (length (send y get-children))]) (hash-table-put! ht set (cons g (hash-table-get ht set '())))))
(cond [(> l1 l2) #t] (sort (hash-table-map ht cons)
[(= l1 l2) (string-ci<? (send x get-label) (lambda (x y)
(send y get-label))] (let ([xlen (length x)] [ylen (length y)])
[else #f])))))) (cond [(> xlen ylen) #t]
[(< xlen ylen) #f]
[else (string<? (car x) (car y))]))))))
(define show-games-help (define f (new (class frame%
(show-help '("games") "About PLT Games")) (augment* [on-close (lambda () (exit))])
(super-new))
[label "PLT Games"]
[style '(metal no-resize-border)]))
(define main (make-object horizontal-panel% f))
(send f set-alignment 'left 'top)
(send f stretchable-width #f)
(send f stretchable-height #f)
(application-about-handler show-games-help) (for ([set game-sets])
(application-preferences-handler (lambda () (define set-name (car set))
(message-box (define games (cdr set))
"Oops" (define panel
"There aren't actually any preferences. This is just a test for Mac OS X" (new group-box-panel% [label set-name] [parent main]))
f (define buttons
'(ok)))) (map (lambda (game)
(new button%
(send f show #t)) [label ((bitmap-label-maker (game-name game) (game-icon game))
panel)]
[parent panel]
[callback (lambda _ (run-game game))]))
games))
(define sorted
(sort buttons (lambda (x y) (< (send x min-width) (send y min-width)))))
(send panel change-children (lambda (l) sorted)))
(define show-games-help (show-help '("games") "About PLT Games"))
(application-about-handler show-games-help)
(application-preferences-handler
(lambda ()
(message-box
"Oops"
"There aren't actually any preferences. This is just a test for Mac OS X"
f
'(ok))))
(send f show #t)

81
collects/games/gcalc/doc.txt
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@ -1,4 +1,5 @@
_GCalc_ a system for visually demonstrating the Lambda Calculus. GCalc is a system for visually demonstrating the Lambda Calculus.
(Not really a game...)
See the following for the principles: See the following for the principles:
http://www.grame.fr/Research/GCalcul/Graphic_Calculus.html http://www.grame.fr/Research/GCalcul/Graphic_Calculus.html
@ -9,30 +10,30 @@ The window layout
----------------- -----------------
The window is divided into three working areas, each made of cells. The window is divided into three working areas, each made of cells.
Cells hold cube objects, which can be dragged between cells (with a few Cells hold cube objects, which can be dragged between cells (with a
exceptions that are listed below). The working areas are: few exceptions that are listed below). The working areas are:
1. The right side is the storage area. 1. The right side is the storage area. This is used for saving
This is used for saving objects -- drag any cube to/from here. Note objects -- drag any cube to/from here. Note that cubes can be
that cubes can be named for convenience. named for convenience.
2. The left side is a panel of basic color cubes. 2. The left side is a panel of basic color cubes. These cells always
These cells always contain a set of basic cubes that are used as the contain a set of basic cubes that are used as the primitive
primitive building blocks all other values are made of. They cannot building blocks all other values are made of. They cannot be
be overwritten. (Note that this includes a transparent cell.) overwritten. (Note that this includes a transparent cell.)
3. The center part is the working panel. 3. The center part is the working panel. This is the main panel where
This is the main panel where new cubes are constructed. The center new cubes are constructed. The center cell is similar to a storage
cell is similar to a storage cell, and the surrounding eight cells cell, and the surrounding eight cells all perform some operation on
all perform some operation on this cell. this cell.
User Interaction User Interaction
---------------- ----------------
Right-click any cell except for the basic colors on the left panel, or Right-click any cell except for the basic colors on the left panel, or
hit escape or F10 for a menu of operations. The menu also includes the hit escape or F10 for a menu of operations. The menu also includes
keyboard shortcuts for these operations. the keyboard shortcuts for these operations.
Cube operations Cube operations
@ -41,38 +42,38 @@ Cube operations
There are six simple operations that are considered part of the simple There are six simple operations that are considered part of the simple
graphic cube world. The operations correspond to six of the operation graphic cube world. The operations correspond to six of the operation
cells: a left-right composition is built using the left and the right cells: a left-right composition is built using the left and the right
cells, a top-bottom using the top and the bottom, and a front-back using cells, a top-bottom using the top and the bottom, and a front-back
the top-left and bottom-right. Dragging a cube to one of these cells using the top-left and bottom-right. Dragging a cube to one of these
will use the corresponding operator to combine it with the main cell's cells will use the corresponding operator to combine it with the main
cube. Using a right mouse click on one of these cells can be used to cell's cube. Using a right mouse click on one of these cells can be
cancel dragging an object to that cell, this is not really an undo used to cancel dragging an object to that cell, this is not really an
feature: a right-click on the right cell always splits the main cube to undo feature: a right-click on the right cell always splits the main
two halves and throws the right side. cube to two halves and throws the right side.
The colored cubes and the six basic operators make this simple domain, The colored cubes and the six basic operators make this simple domain,
which is extended to form a Lambda-Calculus-like language by adding which is extended to form a Lambda-Calculus-like language by adding
abstractions and applications. Right-clicking on a basic cube on the abstractions and applications. Right-clicking on a basic cube on the
left panel creates an abstraction which is actually a lambda expression left panel creates an abstraction which is actually a lambda
except that colors are used instead of syntactic variables. For expression except that colors are used instead of syntactic variables.
example, if the main cell contains `R|G' (red-green on the left and For example, if the main cell contains `R|G' (red-green on the left
right), then right-clicking the green cube on the left panel leaves us and right), then right-clicking the green cube on the left panel
with `lambda G . R|G', which is visualized as `R|G' with a green circle. leaves us with `lambda G . R|G', which is visualized as `R|G' with a
The last two operator cells are used for application of these green circle. The last two operator cells are used for application of
abstractions: drag a function to the top-right to have it applied on the these abstractions: drag a function to the top-right to have it
main cube, or to the bottom-left to have the main cube applied to it. applied on the main cube, or to the bottom-left to have the main cube
As in the Lambda Calculus, all abstractions have exactly one variable, applied to it. As in the Lambda Calculus, all abstractions have
use currying for multiple variables. exactly one variable, use currying for multiple variables.
So far the result is a domain of colored cubes that can be used in the So far the result is a domain of colored cubes that can be used in the
same way as the simple Lambda Calculus. There is one last extension same way as the simple Lambda Calculus. There is one last extension
that goes one step further: function cubes can themselves be combined that goes one step further: function cubes can themselves be combined
with other functions using the simple operations. This results in with other functions using the simple operations. This results in a
a form of "spatial functions" that behave differently in different parts form of "spatial functions" that behave differently in different parts
of the cube according to the construction. For example, a left-right of the cube according to the construction. For example, a left-right
construction of two functions `f|g' operates on a given cube by applying construction of two functions `f|g' operates on a given cube by
`f' on its left part and `g' on its right part. You can use the applying `f' on its left part and `g' on its right part. You can use
preferences dialog to change a few aspects of the computation. the preferences dialog to change a few aspects of the computation.
Use the "Open Example" menu entry to open a sample file that contains Use the "Open Example" menu entry to open a sample file that contains
lots of useful objects (Church numerals, booleans, lists, Y-combinator, lots of useful objects (Church numerals, booleans, lists,
etc). Y-combinator, etc).

35
collects/games/gcalc/gcalc.ss
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@ -3,24 +3,23 @@
;;; based on http://www.grame.fr/Research/GCalcul/Graphic_Calculus.html ;;; based on http://www.grame.fr/Research/GCalcul/Graphic_Calculus.html
;;; implemented by Eli Barzilay: Maze is Life! (eli@barzilay.org) ;;; implemented by Eli Barzilay: Maze is Life! (eli@barzilay.org)
(module gcalc mzscheme #lang mzscheme
(require (lib "class.ss") (lib "mred.ss" "mred") (lib "etc.ss")
"../show-help.ss" (lib "unit.ss"))
(provide game@)
(define customs '()) (require (lib "class.ss") (lib "mred.ss" "mred") (lib "etc.ss")
(define (add-custom! name get set type desc) "../show-help.ss" (lib "unit.ss"))
(set! customs (provide game@)
(append customs (list (make-custom name get set type desc))))) d
(define-struct custom (name getter setter type description)) (define customs '())
(define-syntax defcustom (define (add-custom! name get set type desc)
(syntax-rules () (set! customs (append customs (list (make-custom name get set type desc)))))
[(_ var default type description) (define-struct custom (name getter setter type description))
(begin (define var default) (define-syntax defcustom
(add-custom! 'var (lambda () var) (lambda (v) (set! var v)) (syntax-rules ()
type description))])) [(_ var default type description)
(define game@ (begin (define var default)
(unit (import) (export) (add-custom! 'var (lambda () var) (lambda (v) (set! var v))
type description))]))
(define game@ (unit (import) (export)
;;;============================================================================ ;;;============================================================================
;;; Customizations etc ;;; Customizations etc
@ -1025,4 +1024,4 @@
;; start the whole thing ;; start the whole thing
(send gcalc-frame show #t) (send gcalc-frame show #t)
))) ))

6
collects/games/ginrummy/doc.txt
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@ -1,9 +1,9 @@
** To play _Rummy_, run the "Games" application. ** ** To play Rummy, run the "PLT Games" application.
This is a simple variant of Rummy. This is a simple variant of Rummy.
Put all cards in your hand into straights (3 or more cards) and 3- or Put all cards in your hand into straights (3 or more cards) and 3- or
4-of-a-kind sets to win. Each card counts for only one set. Aces can 4-of-a-kind sets to win. Each card counts for only one set. Aces can
be used in both A-2-3 sequences and Q-K-A sequences. be used in both A-2-3 sequences and Q-K-A sequences.
When all of your cards fit into sets (the game detects this When all of your cards fit into sets (the game detects this
@ -15,4 +15,4 @@ one of your own cards (by dragging from your hand to the discard
pile). pile).
The status line at the bottom of the window provides instructions as The status line at the bottom of the window provides instructions as
you go. The computer player is fairly smart. you go. The computer player is fairly smart.

894
collects/games/ginrummy/ginrummy.ss
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@ -1,513 +1,485 @@
#lang mzscheme
(require (lib "cards.ss" "games" "cards")
(lib "mred.ss" "mred")
(lib "class.ss")
(lib "unit.ss")
(lib "list.ss"))
(module ginrummy mzscheme (provide game@)
(require (lib "cards.ss" "games" "cards") (define game@ (unit (import) (export)
(lib "mred.ss" "mred")
(lib "class.ss")
(lib "unit.ss")
(lib "list.ss"))
(provide game@) ;; Initial card count
(define DEAL-COUNT 10)
(define game@ ;; Messages
(unit (define YOUR-TURN-MESSAGE "Your turn. (Draw a card or pickup a discard.)")
(import) (define DISCARD-MESSAGE "Drag a card from your hand to discard.")
(export) (define GAME-OVER-MESSAGE "GAME OVER")
;; Initial card count ;; Area labels
(define DEAL-COUNT 10) (define YOU-NAME "You")
(define MACHINE-NAME "Opponent")
;; Messages ;; Region layout constants
(define YOUR-TURN-MESSAGE "Your turn. (Draw a card or pickup a discard.)") (define MARGIN 5)
(define DISCARD-MESSAGE "Drag a card from your hand to discard.") (define LABEL-H 15)
(define GAME-OVER-MESSAGE "GAME OVER")
;; Area labels ;; Randomize
(define YOU-NAME "You") (random-seed (modulo (current-milliseconds) 10000))
(define MACHINE-NAME "Opponent")
;; Region layout constants ;; Set up the table
(define MARGIN 5) (define t (make-table "Rummy" 8 4.5))
(define LABEL-H 15) (define status-pane (send t create-status-pane))
(send t add-help-button status-pane '("games" "ginrummy") "Rummy Help" #f)
(send t show #t)
(send t set-double-click-action #f)
(send t set-button-action 'left 'drag-raise/one)
(send t set-button-action 'middle 'drag/one)
(send t set-button-action 'right 'drag/above)
;; Randomize ;; Get table width & height
(random-seed (modulo (current-milliseconds) 10000)) (define w (send t table-width))
(define h (send t table-height))
;; Set up the table ;; Set up the cards
(define t (make-table "Rummy" 8 4.5)) (define deck (shuffle-list (make-deck) 7))
(define status-pane (send t create-status-pane)) (for-each (lambda (card)
(send t add-help-button status-pane '("games" "ginrummy") "Rummy Help" #f) (send card user-can-move #f)
(send t show #t) (send card user-can-flip #f))
(send t set-double-click-action #f) deck)
(send t set-button-action 'left 'drag-raise/one)
(send t set-button-action 'middle 'drag/one)
(send t set-button-action 'right 'drag/above)
;; Get table width & height ;; Function for dealing or drawing cards
(define w (send t table-width)) (define (deal n)
(define h (send t table-height)) (let loop ([n n][d deck])
(if (zero? n)
(begin (set! deck d) null)
(cons (car d) (loop (sub1 n) (cdr d))))))
;; Set up the cards ;; Card width & height
(define deck (shuffle-list (make-deck) 7)) (define cw (send (car deck) card-width))
(for-each (define ch (send (car deck) card-height))
(lambda (card)
(send card user-can-move #f)
(send card user-can-flip #f))
deck)
;; Function for dealing or drawing cards ;; Draw and discard pile locations
(define (deal n) (define draw-x (/ (- w (* 3 cw)) 2))
(let loop ([n n][d deck]) (define draw-y (/ (- h ch) 2))
(if (zero? n) (define discard-x (+ draw-x (* 2 cw)))
(begin (define discard-y draw-y)
(set! deck d)
null)
(cons (car d) (loop (sub1 n) (cdr d))))))
;; Card width & height ;; Put the cards on the table
(define cw (send (car deck) card-width)) (send t add-cards deck draw-x draw-y)
(define ch (send (car deck) card-height))
;; Draw and discard pile locations ;; Player region size
(define draw-x (/ (- w (* 3 cw)) 2)) (define pw (- w (* 2 MARGIN)))
(define draw-y (/ (- h ch) 2)) (define ph (- (* 1.75 ch) (* 4 MARGIN)))
(define discard-x (+ draw-x (* 2 cw)))
(define discard-y draw-y)
;; Put the cards on the table ;; Define the regions
(send t add-cards deck draw-x draw-y) (define machine-region
(make-region MARGIN MARGIN pw ph MACHINE-NAME #f))
(define you-region
(make-region MARGIN (- h ph MARGIN) pw ph YOU-NAME void))
(define discard-region
(make-region (- discard-x MARGIN) (- discard-y MARGIN)
(+ cw (* 2 MARGIN)) (+ ch (* 2 MARGIN))
"" #f))
;; Player region size ;; Install the visible regions
(define pw (- w (* 2 MARGIN))) (send t add-region machine-region)
(define ph (- (* 1.75 ch) (* 4 MARGIN))) (send t add-region you-region)
(send t add-region discard-region)
;; Define the regions ;; Deal the initial hands
(define machine-region (define machine-hand (deal DEAL-COUNT))
(make-region (define you-hand (deal DEAL-COUNT))
MARGIN MARGIN pw ph
MACHINE-NAME
#f))
(define you-region
(make-region
MARGIN (- h ph MARGIN) pw ph
YOU-NAME
void))
(define discard-region
(make-region
(- discard-x MARGIN) (- discard-y MARGIN)
(+ cw (* 2 MARGIN)) (+ ch (* 2 MARGIN))
"" #f))
;; Install the visible regions
(send t add-region machine-region)
(send t add-region you-region)
(send t add-region discard-region)
;; Deal the initial hands
(define machine-hand (deal DEAL-COUNT))
(define you-hand (deal DEAL-COUNT))
;; Function to inset a region ;; Function to inset a region
(define (region->display-region r) (define (region->display-region r)
(define m MARGIN) (define m MARGIN)
(make-region (make-region (+ m (region-x r)) (+ m (region-y r))
(+ m (region-x r)) (+ m (region-y r)) (- (region-w r) (* 2 m)) (- (region-h r) (* 2 m))
(- (region-w r) (* 2 m)) (- (region-h r) (* 2 m)) #f #f))
#f #f))
;; Place cards nicely ;; Place cards nicely
(define machine-display-region (region->display-region machine-region)) (define machine-display-region (region->display-region machine-region))
(send t move-cards-to-region machine-hand machine-display-region) (send t move-cards-to-region machine-hand machine-display-region)
(send t move-cards-to-region you-hand (region->display-region you-region)) (send t move-cards-to-region you-hand (region->display-region you-region))
;; All cards in your hand are movable, but must stay in your region ;; All cards in your hand are movable, but must stay in your region
(for-each (for-each (lambda (card)
(lambda (card) (send card home-region you-region)
(send card home-region you-region) (send card user-can-move #t))
(send card user-can-move #t)) you-hand)
you-hand)
;; More card setup: Show your cards ;; More card setup: Show your cards
(send t cards-face-up you-hand) (send t cards-face-up you-hand)
;; Start the discard pile ;; Start the discard pile
(define discards (deal 1)) (define discards (deal 1))
(send t card-face-up (car discards)) (send t card-face-up (car discards))
(send t move-card (car discards) discard-x discard-y) (send t move-card (car discards) discard-x discard-y)
;; ;;;;;;;;;;;;; Finding Rummy and The Machine Player Strategy ;;;;;;;; ;; ;;;;;;;;;;;;; Finding Rummy and The Machine Player Strategy ;;;;;;;;
;; Check whether a group of (at least 3) cards forms a set (building ;; Check whether a group of (at least 3) cards forms a set (building
;; up to gin). ;; up to gin).
(define (set? cards) (define (set? cards)
(let ([values (map (lambda (c) (send c get-value)) cards)] (let ([values (map (lambda (c) (send c get-value)) cards)]
[suits (map (lambda (c) (send c get-suit-id)) cards)]) [suits (map (lambda (c) (send c get-suit-id)) cards)])
;; All same value? ... or ;; All same value? ... or
(or (apply = values) (or (apply = values)
;; ... All same suit and a straight? ;; ... All same suit and a straight?
(and (apply = suits) (and (apply = suits)
(let ([sorted (sort values <)] (let ([sorted (sort values <)]
[try (lambda (l) [try (lambda (l)
(let loop ([l l]) (let loop ([l l])
(or (null? (cdr l)) (or (null? (cdr l))
(and (= (car l) (sub1 (cadr l))) (and (= (car l) (sub1 (cadr l)))
(loop (cdr l))))))]) (loop (cdr l))))))])
;; Try with Ace at end and at beginning ;; Try with Ace at end and at beginning
(or (try sorted) (or (try sorted)
(and (= 1 (car sorted)) (and (= 1 (car sorted))
(try (append (cdr sorted) (list 14)))))))))) (try (append (cdr sorted) (list 14))))))))))
;; Check how close a hand comes to winning by returning the maximum ;; Check how close a hand comes to winning by returning the maximum number of
;; number of cards that can be arranged into sets. This function is ;; cards that can be arranged into sets. This function is used both to detect
;; used both to detect gin for the end-of-game condition, and also ;; gin for the end-of-game condition, and also as part of the machine player's
;; as part of the machine player's strategy. ;; strategy.
(define (gin-size cards) (define (gin-size cards)
(if (<= (length cards) 2) (if (<= (length cards) 2)
0 0
(let* ([sort (lambda (get) (let* ([sort (lambda (get)
(sort cards (lambda (a b) (< (get a) (get b)))))] (sort cards (lambda (a b) (< (get a) (get b)))))]
;; It's not reasonable to test every combination of 10 cards, ;; It's not reasonable to test every combination of 10 cards, but we
;; but we can cut down the search space a lot by starting ;; can cut down the search space a lot by starting with two
;; with two different sorts on the card list. ;; different sorts on the card list.
;; We sort by value, to find 3-of-a-kind sets, and by ;; We sort by value, to find 3-of-a-kind sets, and by
;; suit-then-value, to find straights. Whatever the ;; suit-then-value, to find straights. Whatever the best allocation
;; best allocation of cards to sets, one of the sets ;; of cards to sets, one of the sets must show up as three cards
;; must show up as three cards together in one of the ;; together in one of the sorted lists. Also, if an extension to
;; sorted lists. Also, if an extension to that set ;; that set leads to an optimal allocation, the extended set
;; leads to an optimal allocation, the extended set ;; corresponds to an extended section of the list.
;; corresponds to an extended section of the list. [value-sorted (sort (lambda (c) (send c get-value)))]
[value-sorted (sort (lambda (c) (send c get-value)))] [suit-sorted (sort (lambda (c) (+ (* 20 (send c get-suit-id)) (send c get-value))))]
[suit-sorted (sort (lambda (c) (+ (* 20 (send c get-suit-id)) (send c get-value))))]
;; Procedure to find a set allocation given one of the sorted ;; Procedure to find a set allocation given one of the sorted
;; lists. It picks each group of three consecutive items ;; lists. It picks each group of three consecutive items from the
;; from the list and see how that choice works out. ;; list and see how that choice works out. (We're still performing
;; (We're still performing a lot of redundant work here, ;; a lot of redundant work here, but it's fast enough.)
;; but it's fast enough.) [find-set
[find-set (lambda (l)
(lambda (l) ;; 3loop tries each group of three items
;; 3loop tries each group of three items (let 3loop ([pre null] ; prefix we've tried already
(let 3loop ([pre null] ; prefix we've tried already [group (list (car l) (cadr l) (caddr l))] ; the group to try
[group (list (car l) (cadr l) (caddr l))] ; the group to try [post (cdddr l)]) ; suffix we haven't tried yet
[post (cdddr l)]) ; suffix we haven't tried yet (max (if (set? group)
(max (if (set? group) ;; We have a start; try to extend or not, and
;; We have a start; try to extend or not, and ;; make gin with the rest, then try the next 3-set
;; make gin with the rest, then try the next 3-set (max (let exloop ([set group][post post])
(max (let exloop ([set group][post post]) (cond
(cond [(null? post)
[(null? post) ;; No more items? Can't extend the set. Does the
;; No more items? Can't extend the set. Does the ;; set we found work out in the long run?
;; set we found work out in the long run? (+ (length set)
(+ (length set) (if (null? pre) 0 (gin-size pre)))]
(if (null? pre) ;; Try to extend the set...
0 [(set? (cons (car post) set))
(gin-size pre)))] ;; The set can be extended. Maybe this
;; Try to extend the set... ;; extension works in the long run...
[(set? (cons (car post) set)) (max (exloop (cons (car post) set) (cdr post))
;; The set can be extended. ;; or maybe without extension works in
;; Maybe this extension works in the long run... ;; the long run...
(max (exloop (cons (car post) set) (cdr post)) (+ (length set) (gin-size (append pre post))))]
;; or maybe without extension works in the long run... ;; Can't extend the set, so try without
(+ (length set) (gin-size (append pre post))))] ;; extension
;; Can't extend the set, so try without extension [else (+ (length set)
[else (+ (length set) (gin-size (append pre post)))])))
(gin-size (append pre post)))]))) 0)
0) ;; Try next three, if possible
;; Try next three, if possible (if (null? post)
(if (null? post) 0
0 ;; Rotate the group, pulling a new last item in from
;; Rotate the group, pulling a new last item in from post ;; post and kicking the first item out to pre.
;; and kicking the first item out to pre. (3loop (cons (car group) pre)
(3loop (cons (car group) pre) (list (cadr group) (caddr group) (car post))
(list (cadr group) (caddr group) (car post)) (cdr post))))))])
(cdr post))))))]) ;; Try the value-sorted list, the the suit-sorted list, then...
;; Try the value-sorted list, the the suit-sorted list, then... (max (find-set value-sorted)
(max (find-set value-sorted) (find-set suit-sorted)
(find-set suit-sorted) ;; the suit-sorted list with with Aces at the end instead of the
;; the suit-sorted list with with Aces at the end instead of the beginning ;; beginning
(let ace-loop ([pre null][l suit-sorted]) (let ace-loop ([pre null][l suit-sorted])
(cond (cond
[(null? l) [(null? l)
;; No more aces to find ;; No more aces to find
(find-set (reverse pre))] (find-set (reverse pre))]
[(null? (cdr l)) [(null? (cdr l))
;; No more aces to find ;; No more aces to find
(find-set (reverse (cons (car l) pre)))] (find-set (reverse (cons (car l) pre)))]
;; Is the front card an ace (before something else of the same suit)? ;; Is the front card an ace (before something else of the same
[(and (= 1 (send (car l) get-value)) ;; suit)?
(= (send (car l) get-suit-id) (send (cadr l) get-suit-id))) [(and (= 1 (send (car l) get-value))
;; Ace is at beginning; move it to the end (= (send (car l) get-suit-id) (send (cadr l) get-suit-id)))
(let* ([ace (car l)] ;; Ace is at beginning; move it to the end
[ace-suit (send ace get-suit-id)]) (let* ([ace (car l)]
(let loop ([pre (cons (cadr l) pre)][l (cddr l)]) [ace-suit (send ace get-suit-id)])
;; At end of this suit? (let loop ([pre (cons (cadr l) pre)][l (cddr l)])
(if (or (null? l) ;; At end of this suit?
(> (send (car l) get-suit-id) ace-suit)) (if (or (null? l) (> (send (car l) get-suit-id) ace-suit))
;; At the end; add Ace here ;; At the end; add Ace here
(ace-loop (cons ace pre) l) (ace-loop (cons ace pre) l)
;; still looking for new spot for Ace ;; still looking for new spot for Ace
(loop (cons (car l) pre) (cdr l)))))] (loop (cons (car l) pre) (cdr l)))))]
[else [else
;; Didn't find an ace; keep looking ;; Didn't find an ace; keep looking
(ace-loop (cons (car l) pre) (cdr l))])))))) (ace-loop (cons (car l) pre) (cdr l))]))))))
;; A hand wins if the biggest gin configuration includes all the cards ;; A hand wins if the biggest gin configuration includes all the cards
(define (gin? cards) (define (gin? cards)
(= (gin-size cards) (length cards))) (= (gin-size cards) (length cards)))
;; This procedure is the second part of the machine's strategy. If ;; This procedure is the second part of the machine's strategy. If the machine
;; the machine sees two choices that are equally good according to ;; sees two choices that are equally good according to gin-size, then it
;; gin-size, then it computes a rating based on pairs, i.e., cards ;; computes a rating based on pairs, i.e., cards that might eventually go
;; that might eventually go together in a set. ;; together in a set.
(define (pair-rating cards gone-cards) (define (pair-rating cards gone-cards)
(let ([suits (map (lambda (card) (send card get-suit-id)) cards)] (let ([suits (map (lambda (card) (send card get-suit-id)) cards)]
[values (map (lambda (card) (send card get-value)) cards)]) [values (map (lambda (card) (send card get-value)) cards)])
;; Its O(n*n), but n is always 10 or 11 ;; Its O(n*n), but n is always 10 or 11
(apply + (apply
(map (lambda (suit value) + (map (lambda (suit value)
(apply + (apply
(map (lambda (suit2 value2) + (map (lambda (suit2 value2)
(cond (cond [(= value value2)
[(= value value2) (- 2 (count-gone value gone-cards))]
(- 2 (count-gone value gone-cards))] [(= suit suit2)
[(= suit suit2) (rate-straight suit value value2 gone-cards)]
(rate-straight suit value value2 gone-cards)] [else 0]))
[else 0])) suits values)))
suits values))) suits values))))
suits values))))
;; count-gone checks how many of a given value are known ;; count-gone checks how many of a given value are known to be permanently
;; to be permanently discarded ;; discarded
(define (count-gone value gone-cards) (define (count-gone value gone-cards)
(cond (cond [(null? gone-cards) 0]
[(null? gone-cards) 0] [(= value (send (car gone-cards) get-value))
[(= value (send (car gone-cards) get-value)) (+ 1 (count-gone value (cdr gone-cards)))]
(+ 1 (count-gone value (cdr gone-cards)))] [else (count-gone value (cdr gone-cards))]))
[else (count-gone value (cdr gone-cards))]))
;; count-avail checks whether a given value/suit is ;; count-avail checks whether a given value/suit is
;; known to be discarded (returns 0) or not (returns 1) ;; known to be discarded (returns 0) or not (returns 1)
(define (count-avail value suit gone-cards) (define (count-avail value suit gone-cards)
(cond (cond [(null? gone-cards) 1]
[(null? gone-cards) 1] [(and (= value (send (car gone-cards) get-value))
[(and (= value (send (car gone-cards) get-value)) (= suit (send (car gone-cards) get-suit-id)))
(= suit (send (car gone-cards) get-suit-id))) 0]
0] [else (count-avail value suit (cdr gone-cards))]))
[else (count-avail value suit (cdr gone-cards))]))
;; rates the possibility for forming a straight given ;; rates the possibility for forming a straight given two card values in a
;; two card values in a particular suit, and taking ;; particular suit, and taking into account cards known to be discarded; the
;; into account cards known to be discarded; the ;; rating is the number of non-discarded cards that would form a straight with
;; rating is the number of non-discarded cards that ;; the given values
;; would form a straight with the given values (define (rate-straight suit value value2 gone-cards)
(define (rate-straight suit value value2 gone-cards) (let ([v1 (if (= value 1)
(let ([v1 (if (= value 1) (if (value2 . > . 6) 14 1)
(if (value2 . > . 6) value)]
14 [v2 (if (= value2 1)
1) (if (value . > . 6) 14 1)
value)] value2)])
[v2 (if (= value2 1) (let ([delta (abs (- v1 v2))])
(if (value . > . 6) (cond [(= delta 1)
14 (cond [(or (= v1 1) (= v2 1))
1) ;; Might get the 3?
value2)]) (count-avail 3 suit gone-cards)]
(let ([delta (abs (- v1 v2))]) [(or (= v1 14) (= v2 14))
(cond ;; Might get the queen?
[(= delta 1) (count-avail 12 suit gone-cards)]
(cond [(or (= v1 13) (= v2 13))
[(or (= v1 1) (= v2 1)) ;; Might get the jack or ace?
;; Might get the 3? (+ (count-avail 11 suit gone-cards)
(count-avail 3 suit gone-cards)] (count-avail 1 suit gone-cards))]
[(or (= v1 14) (= v2 14)) [else
;; Might get the queen? ;; Might get top or bottom?
(count-avail 12 suit gone-cards)] (+ (count-avail (sub1 (min v1 v2)) suit gone-cards)
[(or (= v1 13) (= v2 13)) (count-avail (add1 (max v1 v2)) suit gone-cards))])]
;; Might get the jack or ace? [(= delta 2)
(+ (count-avail 11 suit gone-cards) ;; Might get the middle one?
(count-avail 1 suit gone-cards))] (let ([middle (quotient (+ v1 v2) 2)])
[else (count-avail middle suit gone-cards))]
;; Might get top or bottom? [else 0]))))
(+ (count-avail (sub1 (min v1 v2)) suit gone-cards)
(count-avail (add1 (max v1 v2)) suit gone-cards))])]
[(= delta 2)
;; Might get the middle one?
(let ([middle (quotient (+ v1 v2) 2)])
(count-avail middle suit gone-cards))]
[else 0]))))
;; The procedure implements the machine's card-drawing choice ;; The procedure implements the machine's card-drawing choice
(define (machine-wants-card? machine-hand card gone-cards) (define (machine-wants-card? machine-hand card gone-cards)
;; Simple strategy: the machine wants the card if taking it will ;; Simple strategy: the machine wants the card if taking it will make the
;; make the gin-size of its hand increase, or if taking it will not ;; gin-size of its hand increase, or if taking it will not make the gin-size
;; make the gin-size decrease but will increase the pair rating. ;; decrease but will increase the pair rating.
(let* ([orig-size (gin-size machine-hand)] (let* ([orig-size (gin-size machine-hand)]
[new-hand (remq (machine-discard (cons card machine-hand) gone-cards) [new-hand (remq (machine-discard (cons card machine-hand) gone-cards)
(cons card machine-hand))] (cons card machine-hand))]
[new-size (gin-size new-hand)]) [new-size (gin-size new-hand)])
(or (> new-size orig-size) (or (> new-size orig-size)
(and (= new-size orig-size) (and (= new-size orig-size)
(> (pair-rating new-hand gone-cards) (> (pair-rating new-hand gone-cards)
(pair-rating machine-hand gone-cards)))))) (pair-rating machine-hand gone-cards))))))
;; The procedure implements the machine's discard choice ;; The procedure implements the machine's discard choice
(define (machine-discard machine-hand gone-cards) (define (machine-discard machine-hand gone-cards)
;; Discard the card that leaves the hand with the largest ;; Discard the card that leaves the hand with the largest gin-size. If
;; gin-size. If multiple cards leave the same largest gin size, ;; multiple cards leave the same largest gin size, pick card leaving the best
;; pick card leaving the best pair rating. ;; pair rating.
(let* ([gin-size-card-pairs (let* ([gin-size-card-pairs
(map (lambda (card) (cons (gin-size (remq card machine-hand)) (map (lambda (card) (cons (gin-size (remq card machine-hand)) card))
card)) machine-hand)]
machine-hand)] [most (apply max (map car gin-size-card-pairs))]
[most (apply max (map car gin-size-card-pairs))] [best (filter (lambda (x) (= most (car x))) gin-size-card-pairs)]
[best (filter (lambda (x) (= most (car x))) gin-size-card-pairs)] [best-cards (map cdr best)]
[best-cards (map cdr best)] [rating-card-pairs
[rating-card-pairs (map (lambda (card)
(map (lambda (card) (cons (pair-rating (remq card machine-hand) gone-cards) (cons (pair-rating (remq card machine-hand) gone-cards) card))
card)) best-cards)]
best-cards)] [most (apply max (map car rating-card-pairs))]
[most (apply max (map car rating-card-pairs))] [best (filter (lambda (x) (= most (car x))) rating-card-pairs)])
[best (filter (lambda (x) (= most (car x))) rating-card-pairs)]) (cdar best)))
(cdar best)))
;; ;;;;;; Game Loop ;;;;;;;; ;; ;;;;;; Game Loop ;;;;;;;;
;; This procedure finalizes the display when the game is over ;; This procedure finalizes the display when the game is over
(define (end-of-game why) (define (end-of-game why)
(send t set-status-text (send t set-status-text
(format "~aGame over. ~a." (format
why "~aGame over. ~a."
(cond why
[(and (gin? you-hand) (gin? machine-hand)) "Tie"] ; only on deal (cond [(and (gin? you-hand) (gin? machine-hand)) "Tie"] ; only on deal
[(gin? you-hand) "You win"] [(gin? you-hand) "You win"]
[else "Opponent wins"]))) [else "Opponent wins"])))
(send t cards-face-up machine-hand)) (send t cards-face-up machine-hand))
;; Deck empty? Shuffle the discard pile (preserving the top discard) ;; Deck empty? Shuffle the discard pile (preserving the top discard)
(define (check-empty-deck) (define (check-empty-deck)
(when (null? deck) (when (null? deck)
(set! deck (shuffle-list (cdr discards) 7)) (set! deck (shuffle-list (cdr discards) 7))
(set! discards (list (car discards))) (set! discards (list (car discards)))
(send t cards-face-down deck) (send t cards-face-down deck)
(send t stack-cards deck) (send t stack-cards deck)
(send t move-cards deck draw-x draw-y))) (send t move-cards deck draw-x draw-y)))
;; Check for starge start... ;; Check for starge start...
(if (or (gin? you-hand) (gin? machine-hand)) (if (or (gin? you-hand) (gin? machine-hand))
;; Someone was delt gin - game over ;; Someone was delt gin - game over
(end-of-game "Dealt gin. ") (end-of-game "Dealt gin. ")
;; This is the main game loop ;; This is the main game loop
(let loop () (let loop ()
(check-empty-deck) (check-empty-deck)
;; Your turn; you can select the top card on the deck or on the discard pile ;; Your turn; you can select the top card on the deck or on the discard
(send (car discards) user-can-move #t) ;; pile
(send (car discards) snap-back-after-move #t) (send (car discards) user-can-move #t)
(send (car deck) user-can-move #t) (send (car discards) snap-back-after-move #t)
(send (car deck) snap-back-after-move #t) (send (car deck) user-can-move #t)
(send t set-status-text YOUR-TURN-MESSAGE) (send (car deck) snap-back-after-move #t)
(let ([something-happened (make-semaphore 0)]) (send t set-status-text YOUR-TURN-MESSAGE)
;; Set callback in your region to receive the deck/discard card (let ([something-happened (make-semaphore 0)])
(set-region-callback! ;; Set callback in your region to receive the deck/discard card
you-region (set-region-callback!
(lambda (cards) you-region
(let ([card (car cards)]) (lambda (cards)
;; Adjust the deck, discard pile, and your hand (let ([card (car cards)])
(if (eq? card (car discards)) ;; Adjust the deck, discard pile, and your hand
(set! discards (cdr discards)) (if (eq? card (car discards))
(set! deck (cdr deck))) (set! discards (cdr discards))
(set! you-hand (cons card you-hand)) (set! deck (cdr deck)))
(send t card-face-up card)) (set! you-hand (cons card you-hand))
(send t card-face-up card))
;; Action done - clean up and move on ;; Action done - clean up and move on
(semaphore-post something-happened) (semaphore-post something-happened)
(unless (null? deck) (unless (null? deck)
(send (car deck) user-can-move #f) (send (car deck) user-can-move #f)
(send (car deck) home-region #f)) (send (car deck) home-region #f))
(unless (null? discards) (unless (null? discards)
(send (car discards) user-can-move #f) (send (car discards) user-can-move #f)
(send (car discards) home-region #f)) (send (car discards) home-region #f))
(set-region-callback! you-region #f) (set-region-callback! you-region #f)
(set-region-interactive-callback! you-region #f))) (set-region-interactive-callback! you-region #f)))
;; Interactive callback: change home of card if region is hilited. ;; Interactive callback: change home of card if region is hilited. As a
;; As a result, the card snaps to where you put it instead of back ;; result, the card snaps to where you put it instead of back to its
;; to its original position. ;; original position.
(set-region-interactive-callback! (set-region-interactive-callback!
you-region you-region
(lambda (on? cards) (lambda (on? cards)
(send (car cards) snap-back-after-move (not on?)) (send (car cards) snap-back-after-move (not on?))
(send (car cards) home-region (and on? you-region)))) (send (car cards) home-region (and on? you-region))))
;; Wait for action (the action itself is handled by the callback ;; Wait for action (the action itself is handled by the callback
;; for you-region) ;; for you-region)
(yield something-happened)) (yield something-happened))
;; Time for you to discard something ;; Time for you to discard something
(send t set-status-text DISCARD-MESSAGE) (send t set-status-text DISCARD-MESSAGE)
(let ([something-happened (make-semaphore 0)]) (let ([something-happened (make-semaphore 0)])
;; This time, the discard pile is the active region ;; This time, the discard pile is the active region
(set-region-callback! (set-region-callback!
discard-region discard-region
(lambda (cards) (lambda (cards)
(let ([card (car cards)]) (let ([card (car cards)])
;; Adjust the discard pile and your hand ;; Adjust the discard pile and your hand
(set! you-hand (remq card you-hand)) (set! you-hand (remq card you-hand))
(set! discards (cons card discards)) (set! discards (cons card discards))
(send t card-to-front card) (send t card-to-front card)
(send t move-card card discard-x discard-y) (send t move-card card discard-x discard-y)
;; Discarded card is now relatively immobile ;; Discarded card is now relatively immobile
(send card user-can-move #t) (send card user-can-move #t)
(send card home-region #f)) (send card home-region #f))
;; Action done - clean up and move on ;; Action done - clean up and move on
(semaphore-post something-happened) (semaphore-post something-happened)
(set-region-callback! discard-region #f) (set-region-callback! discard-region #f)
(set-region-interactive-callback! discard-region #f))) (set-region-interactive-callback! discard-region #f)))
;; Interactive callback: change home of card if region is hilited, ;; Interactive callback: change home of card if region is hilited,
;; so the card you drag snaps to the discard pile. ;; so the card you drag snaps to the discard pile.
(set-region-interactive-callback! (set-region-interactive-callback!
discard-region discard-region
(lambda (on? cards) (lambda (on? cards)
(send (car cards) home-region (send (car cards) home-region (if on? discard-region you-region))))
(if on? discard-region you-region)))) ;; Wait for action
;; Wait for action (yield something-happened))
(yield something-happened))
(if (gin? you-hand) (if (gin? you-hand)
;; Game over ;; Game over
(end-of-game "") (end-of-game "")
;; Keep going; machine's turn ;; Keep going; machine's turn
(begin (begin
(check-empty-deck) (check-empty-deck)
;; Machine picks a card ;; Machine picks a card
(if (machine-wants-card? machine-hand (car discards) (cdr discards)) (if (machine-wants-card? machine-hand (car discards) (cdr discards))
(let ([card (car discards)]) (let ([card (car discards)])
(set! discards (cdr discards)) (set! discards (cdr discards))
(send t card-face-down card) (send t card-face-down card)
(send card user-can-move #f) (send card user-can-move #f)
(set! machine-hand (cons card machine-hand))) (set! machine-hand (cons card machine-hand)))
(let ([card (car deck)]) (let ([card (car deck)])
(send t card-to-front card) (send t card-to-front card)
(set! deck (cdr deck)) (set! deck (cdr deck))
(send card user-can-move #f) (send card user-can-move #f)
(set! machine-hand (cons card machine-hand)))) (set! machine-hand (cons card machine-hand))))
(send t move-cards-to-region machine-hand machine-display-region) (send t move-cards-to-region machine-hand machine-display-region)
;; Machine discards ;; Machine discards
(let ([card (machine-discard machine-hand discards)]) (let ([card (machine-discard machine-hand discards)])
(send t card-face-up card) (send t card-face-up card)
(send t card-to-front card) (send t card-to-front card)
(send t move-card card discard-x discard-y) (send t move-card card discard-x discard-y)
(set! discards (cons card discards)) (set! discards (cons card discards))
(set! machine-hand (remq card machine-hand)) (set! machine-hand (remq card machine-hand))
(send t move-cards-to-region machine-hand machine-display-region)) (send t move-cards-to-region machine-hand machine-display-region))
(if (gin? machine-hand) (if (gin? machine-hand)
;; Game over ;; Game over
(end-of-game "") (end-of-game "")
;; Next turn ;; Next turn
(loop))))))))) (loop))))))
))

56
collects/games/gobblet/doc.txt
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@ -1,4 +1,4 @@
** To play _Goblet_, run the "Games" application. ** ** To play Goblet, run the "PLT Games" application.
"Gobblet!" is a board game from Blue Orange Games: "Gobblet!" is a board game from Blue Orange Games:
http://www.blueorangegames.com/ http://www.blueorangegames.com/
@ -16,7 +16,7 @@ Game Rules
The 3x3 game is a generalization of tic-tac-toe: The 3x3 game is a generalization of tic-tac-toe:
* The object of the game is to get three in a row of your color, * The object of the game is to get three in a row of your color,
vertically, horizontally, or diagonally. Size doesn't matter for vertically, horizontally, or diagonally. Size doesn't matter for
determining a winner. determining a winner.
* Each player (red or yellow) starts with 6 pieces: two large, two * Each player (red or yellow) starts with 6 pieces: two large, two
@ -28,14 +28,14 @@ The 3x3 game is a generalization of tic-tac-toe:
* A piece can be placed (or moved to) an empty space, or it can be * A piece can be placed (or moved to) an empty space, or it can be
placed/moved on top of a smaller piece already on the board, placed/moved on top of a smaller piece already on the board,
"gobbling" the smaller piece. The smaller piece does not have to be "gobbling" the smaller piece. The smaller piece does not have to
an opponent's piece, and the smaller piece may itself have gobbled be an opponent's piece, and the smaller piece may itself have
another piece previously. gobbled another piece previously.
* Only visible pieces can be moved, and only visible pieces count * Only visible pieces can be moved, and only visible pieces count
toward winning. Gobbled pieces stay on the board, however, and when toward winning. Gobbled pieces stay on the board, however, and
a piece is moved, any piece that it gobbled stays put and becomes when a piece is moved, any piece that it gobbled stays put and
visible. becomes visible.
* If moving a piece exposes a winning sequence for the opponent, and * If moving a piece exposes a winning sequence for the opponent, and
if the destination for the move does not cover up one of the other if the destination for the move does not cover up one of the other
@ -43,10 +43,10 @@ The 3x3 game is a generalization of tic-tac-toe:
makes a winning sequence for the moving player. makes a winning sequence for the moving player.
* Technically, if a player touches a piece, then the piece must be * Technically, if a player touches a piece, then the piece must be
moved on that turn. In other words, you're not allowed to peek moved on that turn. In other words, you're not allowed to peek
under a piece to remind yourself whether it gobbled anything. If under a piece to remind yourself whether it gobbled anything. If
the piece can't be moved, the player forfeits. This particular rule the piece can't be moved, the player forfeits. This particular
is not enforced by our version --- in part because our version rule is not enforced by our version --- in part because our version
supports a rewind button, which is also not in the official game. supports a rewind button, which is also not in the official game.
The 4x4 game has a few changes: The 4x4 game has a few changes:
@ -72,36 +72,36 @@ The 4x4 game has a few changes:
Controls Controls
-------- --------
Click and drag pieces in the obvious way to take a turn. The shadow Click and drag pieces in the obvious way to take a turn. The shadow
under a piece shows where it will land when you drop it. under a piece shows where it will land when you drop it.
Use the arrow keys on your keyboard to rotate the board. Use the "-" Use the arrow keys on your keyboard to rotate the board. Use the "-"
and "=" keys to zoom in and out. Use "_" and "+" to make the game and "=" keys to zoom in and out. Use "_" and "+" to make the game
smaller and larger. (Changing the size adjusts perspective in a smaller and larger. (Changing the size adjusts perspective in a
slightly different way than zooming.) Depending on how keyboard focus slightly different way than zooming.) Depending on how keyboard focus
works on your machine, you may have to click the board area to make works on your machine, you may have to click the board area to make
these controls work. these controls work.
The button labeled "<" at the bottom of the window rewinds the game The button labeled "<" at the bottom of the window rewinds the game by
by one turn. The button labeled ">" re-plays one turn in a rewound one turn. The button labeled ">" re-plays one turn in a rewound game.
game. An alternate move can be made at any point in a rewound game, An alternate move can be made at any point in a rewound game,
replacing the old game from that point on. replacing the old game from that point on.
Auto-Play Auto-Play
--------- ---------
Turn on a computer player at any time by checking the "Auto-Play Red" Turn on a computer player at any time by checking the "Auto-Play Red"
or "Auto-Play Yellow" checkbox. If you rewind the game, you can choose or "Auto-Play Yellow" checkbox. If you rewind the game, you can
an alternate move for yourself or for the auto-player to find out what choose an alternate move for yourself or for the auto-player to find
would have happened. The auto-player is not always deterministic, so out what would have happened. The auto-player is not always
replying the same move might lead to a different result. You can deterministic, so replying the same move might lead to a different
disable an auto-player at any point by unchecking the corresponding result. You can disable an auto-player at any point by unchecking the
"Auto-Play" checkbox. corresponding "Auto-Play" checkbox.
Important: In the 3x3 game, you CANNOT win as yellow against the smart Important: In the 3x3 game, you CANNOT win as yellow against the smart
auto-player (if the auto-player is allowed to play red from the start auto-player (if the auto-player is allowed to play red from the start
of the game). In other words, red has a forced win in the 3x3 game, of the game). In other words, red has a forced win in the 3x3 game,
and the smart auto-player knows the path to victory. You might have a and the smart auto-player knows the path to victory. You might have a
chance to beat the red player in the default mode, though, which is chance to beat the red player in the default mode, though, which is
represented by the "Ok" choice (instead of "Smart") in the "Auto-Play represented by the "Ok" choice (instead of "Smart") in the "Auto-Play
Options" dialog. Options" dialog.

108
collects/games/gobblet/gobblet.ss
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@ -1,62 +1,60 @@
(module gobblet mzscheme #lang mzscheme
(require (lib "unitsig.ss") (require (lib "unitsig.ss")
(only (lib "unit.ss") unit import export) (only (lib "unit.ss") unit import export)
(lib "file.ss") (lib "file.ss")
(lib "mred.ss" "mred") (lib "mred.ss" "mred")
"sig.ss" "sig.ss"
"model.ss" "model.ss"
"gui.ss" "gui.ss"
"heuristics.ss" "heuristics.ss"
"explore.ss" "explore.ss"
"../show-help.ss") "../show-help.ss")
(provide game@) (provide game@)
(define game@ (define game@
(unit (unit (import) (export)
(import)
(export)
(define (make-gobblet-unit size) (define (make-gobblet-unit size)
(compound-unit/sig (compound-unit/sig
(import) (import)
(link [CONFIG : config^ ((unit/sig config^ (link [CONFIG : config^
(import) ((unit/sig config^ (import)
(define BOARD-SIZE size)))] (define BOARD-SIZE size)))]
[RESTART : restart^ ((unit/sig restart^ [RESTART : restart^
(import) ((unit/sig restart^ (import)
(define (new-game n) (define (new-game n)
(put-preferences '(gobblet:board-size) (list n) void) (put-preferences '(gobblet:board-size) (list n) void)
(parameterize ([current-eventspace orig-eventspace]) (parameterize ([current-eventspace orig-eventspace])
(queue-callback (queue-callback
(lambda () (lambda ()
(start-gobblet n))))) (start-gobblet n)))))
(define (show-gobblet-help) (define (show-gobblet-help)
(parameterize ([current-eventspace orig-eventspace]) (parameterize ([current-eventspace orig-eventspace])
(queue-callback (queue-callback
(lambda () (lambda ()
(unless help (unless help
(set! help (show-help (list "games" "gobblet") (set! help (show-help (list "games" "gobblet")
"Gobblet Help" #f))) "Gobblet Help" #f)))
(help)))))))] (help)))))))]
[MODEL : model^ (model-unit CONFIG)] [MODEL : model^ (model-unit CONFIG)]
[HEURISTICS : heuristics^ (heuristics-unit CONFIG MODEL EXPLORE)] [HEURISTICS : heuristics^ (heuristics-unit CONFIG MODEL EXPLORE)]
[EXPLORE : explore^ (explore-unit CONFIG MODEL)] [EXPLORE : explore^ (explore-unit CONFIG MODEL)]
[GUI : () (gui-unit CONFIG MODEL RESTART HEURISTICS EXPLORE)]) [GUI : () (gui-unit CONFIG MODEL RESTART HEURISTICS EXPLORE)])
(export))) (export)))
(define help #f) (define help #f)
(define orig-eventspace (current-eventspace)) (define orig-eventspace (current-eventspace))
(define (start-gobblet board-size) (define (start-gobblet board-size)
;; Start a new game as a child process: ;; Start a new game as a child process:
(parameterize ([current-custodian (make-custodian)]) (parameterize* ([current-custodian (make-custodian)]
(parameterize ([exit-handler (lambda (v) [exit-handler
(custodian-shutdown-all (current-custodian)))]) (lambda (v)
(parameterize ([current-eventspace (make-eventspace)]) (custodian-shutdown-all (current-custodian)))]
(queue-callback [current-eventspace (make-eventspace)])
(lambda () (queue-callback
(invoke-unit/sig (make-gobblet-unit board-size)))))))) (lambda () (invoke-unit/sig (make-gobblet-unit board-size))))))
(start-gobblet (get-preference 'gobblet:board-size (lambda () 3)))))) (start-gobblet (get-preference 'gobblet:board-size (lambda () 3)))))

14
collects/games/gofish/doc.txt
View File

@ -1,7 +1,7 @@
** To play _Go Fish_, run the "Games" application. ** ** To play Go Fish, run the "PLT Games" application.
Go Fish is the children's card game where you try to get rid of all Go Fish is the children's card game where you try to get rid of all
you cards by forming pairs. You play against two computer players. you cards by forming pairs. You play against two computer players.
On Each turn, if you have a match in your hand, drag one of the On Each turn, if you have a match in your hand, drag one of the
matching cards to your numbered box, and the match will move into the matching cards to your numbered box, and the match will move into the
@ -12,17 +12,17 @@ opponent's area to ask the opponent for a matching card:
* If the opponent has a card with the same value as the card that you * If the opponent has a card with the same value as the card that you
drag, the opponent will give you the card, and they'll go into your drag, the opponent will give you the card, and they'll go into your
match area. Drag another card to an opponent. match area. Drag another card to an opponent.
* If the opponent has no matching card, the top card on draw pile * If the opponent has no matching card, the top card on draw pile
will move, indicating that you must "Go Fish!". Draw a card by will move, indicating that you must "Go Fish!". Draw a card by
dragging it from the draw pile to your hand. If the drawn card dragging it from the draw pile to your hand. If the drawn card
gives you a match, then the match will automatically move into your gives you a match, then the match will automatically move into your
match area, and it's still your turn (so drag another card to one match area, and it's still your turn (so drag another card to one
of the opponents). of the opponents).
The game is over when one player runs out of cards. The winner is the The game is over when one player runs out of cards. The winner is the
one with the most matches. one with the most matches.
The status line at the bottom of the window provides instructions as The status line at the bottom of the window provides instructions as
you go. The computer players are not particularly smart. you go. The computer players are not particularly smart.

652
collects/games/gofish/gofish.ss
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@ -1,359 +1,329 @@
#lang mzscheme
(require (lib "cards.ss" "games" "cards")
(lib "mred.ss" "mred")
(lib "class.ss")
(lib "unit.ss")
(lib "list.ss"))
(module gofish mzscheme (provide game@)
(require (lib "cards.ss" "games" "cards") (define game@ (unit (import) (export)
(lib "mred.ss" "mred")
(lib "class.ss")
(lib "unit.ss")
(lib "list.ss"))
(provide game@) ;; Player record
(define-struct player (r hand-r discard-r count-r ; regions
hand discarded ; cards
tried)) ; memory for simulating players
(define game@ ;; Player names
(unit (define PLAYER-1-NAME "Opponent 1")
(import) (define PLAYER-2-NAME "Opponent 2")
(export) (define YOUR-NAME "You")
;; Player record ;; Initial card count
(define-struct player (r hand-r discard-r count-r ; regions (define DEAL-COUNT 7)
hand discarded ; cards
tried)) ; memory for simulating players
;; Player names ;; Messages
(define PLAYER-1-NAME "Opponent 1") (define YOUR-TURN-MESSAGE
(define PLAYER-2-NAME "Opponent 2") "Your turn. (Drag a match to your discard box or drag a card to an opponent.)")
(define YOUR-NAME "You") (define GO-FISH-MESSAGE
"Go Fish! (Drag a card from the center deck to your box.)")
(define MATCH-MESSAGE "Match!")
(define GAME-OVER-MESSAGE "GAME OVER")
;; Initial card count ;; Region layout constants
(define DEAL-COUNT 7) (define MARGIN 10)
(define SUBMARGIN 10)
(define LABEL-H 15)
;; Messages ;; Randomize
(define YOUR-TURN-MESSAGE "Your turn. (Drag a match to your discard box or drag a card to an opponent.)") (random-seed (modulo (current-milliseconds) 10000))
(define GO-FISH-MESSAGE "Go Fish! (Drag a card from the center deck to your box.)")
(define MATCH-MESSAGE "Match!")
(define GAME-OVER-MESSAGE "GAME OVER")
;; Region layout constants ;; Set up the table
(define MARGIN 10) (define t (make-table "Go Fish" 8 4.5))
(define SUBMARGIN 10) (define status-pane (send t create-status-pane))
(define LABEL-H 15) (send t add-help-button status-pane '("games" "gofish") "Go Fish Help" #f)
(send t show #t)
(send t set-double-click-action #f)
(send t set-button-action 'left 'drag-raise/one)
(send t set-button-action 'middle 'drag/one)
(send t set-button-action 'right 'drag/one)
;; Randomize ;; Get table width & height
(random-seed (modulo (current-milliseconds) 10000)) (define w (send t table-width))
(define h (send t table-height))
;; Set up the table ;; Set up the cards
(define t (make-table "Go Fish" 8 4.5)) (define deck (shuffle-list (make-deck) 7))
(define status-pane (send t create-status-pane)) (for-each (lambda (card)
(send t add-help-button status-pane '("games" "gofish") "Go Fish Help" #f) (send card snap-back-after-move #t)
(send t show #t) (send card user-can-flip #f))
(send t set-double-click-action #f) deck)
(send t set-button-action 'left 'drag-raise/one)
(send t set-button-action 'middle 'drag/one)
(send t set-button-action 'right 'drag/one)
;; Get table width & height ;; Function for dealing or drawing cards
(define w (send t table-width)) (define (deal n)
(define h (send t table-height)) (let loop ([n n][d deck])
(if (zero? n)
(begin (set! deck d) null)
(cons (car d) (loop (sub1 n) (cdr d))))))
;; Set up the cards ;; Card width & height
(define deck (shuffle-list (make-deck) 7)) (define cw (send (car deck) card-width))
(for-each (define ch (send (car deck) card-height))
(lambda (card)
(send card snap-back-after-move #t)
(send card user-can-flip #f))
deck)
;; Function for dealing or drawing cards ;; Put the cards on the table
(define (deal n) (send t add-cards deck (/ (- w cw) 2) (- (/ (- h ch) 2) (/ ch 3)))
(let loop ([n n][d deck])
(if (zero? n) ;; Player region size
(define pw (- (/ (- w cw) 2) (* 2 MARGIN)))
(define ph (- (/ (- h (/ ch 3)) 2) (* 2 MARGIN)))
;; Region-makers
(define (make-hand-region r)
(define m SUBMARGIN)
(make-region (+ m (region-x r)) (+ LABEL-H m (region-y r))
(- (region-w r) (* 3 m) cw) (- (region-h r) LABEL-H (* 2 m))
#f #f))
(define (make-discard-region r)
(make-region (- (+ (region-x r) (region-w r)) SUBMARGIN cw)
(- (+ (region-y r) (region-h r)) SUBMARGIN ch)
cw ch
#f #f))
(define (make-discard-count-region r c cb)
(make-region
(- (+ (region-x r) (region-w r)) SUBMARGIN cw (/ SUBMARGIN 2))
(- (+ (region-y r) (region-h r)) SUBMARGIN ch LABEL-H (/ SUBMARGIN 2))
(+ cw SUBMARGIN) (+ ch LABEL-H SUBMARGIN)
(number->string c)
cb))
;; Define the initial regions
(define player-1-region
(make-region MARGIN MARGIN pw ph PLAYER-1-NAME void))
(define player-2-region
(make-region (- w MARGIN pw) MARGIN pw ph PLAYER-2-NAME void))
(define you-region
(make-region MARGIN (- h MARGIN ph) (- w (* 2 MARGIN)) ph YOUR-NAME void))
;; Player setup
(define (create-player r discard-callback)
(let ([p (make-player
r
(make-hand-region r)
(make-discard-region r)
(make-discard-count-region r 0 discard-callback)
(deal DEAL-COUNT)
null
null)])
(send t add-region r)
(send t add-region (player-count-r p))
(for-each (lambda (card)
(send t card-to-front card)) (reverse (player-hand p)))
(send t move-cards-to-region (player-hand p) (player-hand-r p))
p))
(define player-1 (create-player player-1-region #f))
(define player-2 (create-player player-2-region #f))
(define you (create-player you-region
;; Dragging to your discard pile checks to see if
;; the card makes a match:
(lambda (cards)
(check-hand you (car cards))
(send t set-status YOUR-TURN-MESSAGE))))
;; More card setup: Opponents's cards and deck initally can't be moved
(for-each (lambda (card) (send card user-can-move #f))
(append (player-hand player-1) (player-hand player-2) deck))
;; More card setup: Show your cards
(send t flip-cards (player-hand you))
;; Function to update the display for a player record
(define (rearrange-cards p)
;; Stack cards in 3D first-to-last
(send t stack-cards (player-discarded p))
(send t stack-cards (player-hand p))
;; Move them to their regions
(send t move-cards-to-region (player-discarded p) (player-discard-r p))
(send t move-cards-to-region (player-hand p) (player-hand-r p))
;; Recreate the counter region to reset the count
(send t begin-card-sequence)
(send t remove-region (player-count-r p))
(set-player-count-r! p (make-discard-count-region
(player-r p) (/ (length (player-discarded p)) 2)
(region-callback (player-count-r p))))
(send t add-region (player-count-r p))
(send t end-card-sequence))
;; Function to search for an equivalent card
(define (find-equiv card hand)
(ormap (lambda (c)
(and (not (eq? c card))
(= (send card get-value) (send c get-value))
c))
hand))
;; Function to check for a match involving `card' already in the player's hand
(define (check-hand player card)
(let* ([h (player-hand player)]
[found (find-equiv card h)])
(if found
(begin
;; Make sure the matching cards are face-up and pause for the user
(send t cards-face-up (list found card))
(send t set-status MATCH-MESSAGE)
;; The players has a match! Move the card from the player's hand
;; to his discard pile
(set-player-hand! player (remove* (list card found) h))
(set-player-discarded! player
(list* found card (player-discarded player)))
;; The dicarded cards can no longer be moved
(send card user-can-move #f)
(send found user-can-move #f)
;; Move the cards to their new places
(rearrange-cards player)
;; Slower
#t)
#f)))
;; Function to enable/disable moving your cards
(define (enable-your-cards on?)
(for-each (lambda (c) (send c user-can-move on?)) (player-hand you)))
;; Callbacks communicate back to the main loop via these
(define something-happened (make-semaphore 1))
(define go-fish? #f)
;; Function for trying to get a card from another player
(define (ask-player-for-match getter giver card)
(let* ([h (player-hand giver)]
[found (find-equiv card h)])
(if found
(begin
;; The giver player has a matching card - give it to the getter
(set-player-hand! giver (remq found h))
(set-player-hand! getter (cons found (player-hand getter)))
;; Make sure the matching cards are face-up and pause for the user
(send t cards-face-up (list found card))
;; Move the cards around
(check-hand getter card)
(rearrange-cards giver)
#t)
;; The giver player doesn't have it - Go Fish!
#f)))
;; Callback for dragging a card to an opponent
(define (player-callback player)
(lambda (cards)
(set! go-fish? (not (ask-player-for-match you player (car cards))))
(semaphore-post something-happened)))
;; Visual info to go fish
(define wiggle-top-card
(lambda ()
(let ([top (car deck)]
[x (/ (- w cw) 2)]
[y (- (/ (- h ch) 2) (/ ch 3))])
(send t move-card top (- x 10) y)
(send t move-card top (+ x 10) y)
(send t move-card top x y))))
;; Callback for going fishing
(define fishing
(lambda (cards)
(send t flip-card (car deck))
(set-player-hand! you (append (deal 1) (player-hand you)))
(rearrange-cards you)
(semaphore-post something-happened)))
;; Function to simulate a player
(define (simulate-player player other-player k)
;; Try cards in the players hand that haven't been tried
(let ([cards-to-try (remq* (player-tried player) (player-hand player))])
(if (null? cards-to-try)
(begin
;; No cards to try. Reset the history and start over
(set-player-tried! player null)
(simulate-player player other-player k))
;; Pick a random card and a random opponent
(let ([c (list-ref cards-to-try (random (length cards-to-try)))]
[o (list-ref (list you other-player) (random 2))])
(set-player-tried! player (cons c (player-tried player)))
;; Show you the card-to-ask
(send t flip-card c)
;; Hilight player-to-ask
(send t hilite-region (player-r o))
;; Wait a moment
(sleep 0.3)
;; Unhilight player-to-ask
(send t unhilite-region (player-r o))
(if (ask-player-for-match player o c)
;; Got it - go again
(check-done
(lambda ()
(simulate-player player other-player k)))
;; Go fish
(begin
;; Wait a bit, then turn the asked-for card back over
(sleep 0.3)
(send t flip-card c)
(if (null? deck)
;; No more cards; pass
(k)
(begin (begin
(set! deck d) ;; Draw a card
null) (set-player-hand! player (append (deal 1) (player-hand player)))
(cons (car d) (loop (sub1 n) (cdr d))))))
;; Card width & height
(define cw (send (car deck) card-width))
(define ch (send (car deck) card-height))
;; Put the cards on the table
(send t add-cards
deck
(/ (- w cw) 2)
(- (/ (- h ch) 2) (/ ch 3)))
;; Player region size
(define pw (- (/ (- w cw) 2) (* 2 MARGIN)))
(define ph (- (/ (- h (/ ch 3)) 2) (* 2 MARGIN)))
;; Region-makers
(define (make-hand-region r)
(define m SUBMARGIN)
(make-region
(+ m (region-x r)) (+ LABEL-H m (region-y r))
(- (region-w r) (* 3 m) cw) (- (region-h r) LABEL-H (* 2 m))
#f #f))
(define (make-discard-region r)
(make-region
(- (+ (region-x r) (region-w r)) SUBMARGIN cw)
(- (+ (region-y r) (region-h r)) SUBMARGIN ch)
cw ch
#f #f))
(define (make-discard-count-region r c cb)
(make-region
(- (+ (region-x r) (region-w r)) SUBMARGIN cw (/ SUBMARGIN 2))
(- (+ (region-y r) (region-h r)) SUBMARGIN ch LABEL-H (/ SUBMARGIN 2))
(+ cw SUBMARGIN) (+ ch LABEL-H SUBMARGIN)
(number->string c)
cb))
;; Define the initial regions
(define player-1-region
(make-region
MARGIN MARGIN pw ph
PLAYER-1-NAME
void))
(define player-2-region
(make-region
(- w MARGIN pw) MARGIN pw ph
PLAYER-2-NAME
void))
(define you-region
(make-region
MARGIN (- h MARGIN ph) (- w (* 2 MARGIN)) ph
YOUR-NAME
void))
;; Player setup
(define (create-player r discard-callback)
(let ([p (make-player
r
(make-hand-region r)
(make-discard-region r)
(make-discard-count-region r 0 discard-callback)
(deal DEAL-COUNT)
null
null)])
(send t add-region r)
(send t add-region (player-count-r p))
(for-each (lambda (card) (send t card-to-front card)) (reverse (player-hand p)))
(send t move-cards-to-region (player-hand p) (player-hand-r p))
p))
(define player-1 (create-player player-1-region #f))
(define player-2 (create-player player-2-region #f))
(define you (create-player you-region
;; Dragging to your discard pile checks to see if the card
;; makes a match:
(lambda (cards)
(check-hand you (car cards))
(send t set-status YOUR-TURN-MESSAGE))))
;; More card setup: Opponents's cards and deck initally can't be moved
(for-each
(lambda (card) (send card user-can-move #f))
(append
(player-hand player-1)
(player-hand player-2)
deck))
;; More card setup: Show your cards
(send t flip-cards (player-hand you))
;; Function to update the display for a player record
(define (rearrange-cards p)
;; Stack cards in 3D first-to-last
(send t stack-cards (player-discarded p))
(send t stack-cards (player-hand p))
;; Move them to their regions
(send t move-cards-to-region (player-discarded p) (player-discard-r p))
(send t move-cards-to-region (player-hand p) (player-hand-r p))
;; Recreate the counter region to reset the count
(send t begin-card-sequence)
(send t remove-region (player-count-r p))
(set-player-count-r! p (make-discard-count-region
(player-r p) (/ (length (player-discarded p)) 2)
(region-callback (player-count-r p))))
(send t add-region (player-count-r p))
(send t end-card-sequence))
;; Function to search for an equivalent card
(define (find-equiv card hand)
(ormap (lambda (c)
(and (not (eq? c card))
(= (send card get-value) (send c get-value))
c))
hand))
;; Function to check for a match involving `card' already in the player's hand
(define (check-hand player card)
(let* ([h (player-hand player)]
[found (find-equiv card h)])
(if found
(begin
;; Make sure the matching cards are face-up and pause for the user
(send t cards-face-up (list found card))
(send t set-status MATCH-MESSAGE)
;; The players has a match! Move the card from the player's hand
;; to his discard pile
(set-player-hand! player (remove* (list card found) h))
(set-player-discarded! player (cons found
(cons card
(player-discarded player))))
;; The dicarded cards can no longer be moved
(send card user-can-move #f)
(send found user-can-move #f)
;; Move the cards to their new places
(rearrange-cards player) (rearrange-cards player)
;; Slower (if (check-hand player (car (player-hand player)))
#t) ;; Drew a good card - keep going
#f))) (check-done
(lambda ()
(simulate-player player other-player k)))
;; End of our turn
(k))))))))))
;; Function to enable/disable moving your cards ;; Function to check for end-of-game
(define (enable-your-cards on?) (define (check-done k)
(for-each (lambda (c) (send c user-can-move on?)) (if (ormap (lambda (p) (null? (player-hand p))) (list player-1 player-2 you))
(player-hand you))) (begin (enable-your-cards #f)
(send t set-status GAME-OVER-MESSAGE))
;; Callbacks communicate back to the main loop via these (k)))
(define something-happened (make-semaphore 1))
(define go-fish? #f)
;; Function for trying to get a card from another player
(define (ask-player-for-match getter giver card)
(let* ([h (player-hand giver)]
[found (find-equiv card h)])
(if found
(begin
;; The giver player has a matching card - give it to the getter
(set-player-hand! giver (remq found h))
(set-player-hand! getter (cons found (player-hand getter)))
;; Make sure the matching cards are face-up and pause for the user
(send t cards-face-up (list found card))
;; Move the cards around
(check-hand getter card)
(rearrange-cards giver)
#t)
;; The giver player doesn't have it - Go Fish!
#f)))
;; Callback for dragging a card to an opponent
(define (player-callback player)
(lambda (cards)
(set! go-fish? (not (ask-player-for-match you player (car cards))))
(semaphore-post something-happened)))
;; Visual info to go fish
(define wiggle-top-card
(lambda ()
(let ([top (car deck)]
[x (/ (- w cw) 2)]
[y (- (/ (- h ch) 2) (/ ch 3))])
(send t move-card top (- x 10) y)
(send t move-card top (+ x 10) y)
(send t move-card top x y))))
;; Callback for going fishing
(define fishing
(lambda (cards)
(send t flip-card (car deck))
(set-player-hand! you (append (deal 1) (player-hand you)))
(rearrange-cards you)
(semaphore-post something-happened)))
;; Function to simulate a player
(define (simulate-player player other-player k)
;; Try cards in the players hand that haven't been tried
(let ([cards-to-try (remq* (player-tried player) (player-hand player))])
(if (null? cards-to-try)
(begin
;; No cards to try. Reset the history and start over
(set-player-tried! player null)
(simulate-player player other-player k))
;; Pick a random card and a random opponent
(let ([c (list-ref cards-to-try (random (length cards-to-try)))]
[o (list-ref (list you other-player) (random 2))])
(set-player-tried! player (cons c (player-tried player)))
;; Show you the card-to-ask
(send t flip-card c)
;; Hilight player-to-ask
(send t hilite-region (player-r o))
;; Wait a moment
(sleep 0.3)
;; Unhilight player-to-ask
(send t unhilite-region (player-r o))
(if (ask-player-for-match player o c)
;; Got it - go again
(check-done
(lambda ()
(simulate-player player other-player k)))
;; Go fish
(begin
;; Wait a bit, then turn the asked-for card back over
(sleep 0.3)
(send t flip-card c)
(if (null? deck)
;; No more cards; pass
(k)
(begin
;; Draw a card
(set-player-hand! player (append (deal 1) (player-hand player)))
(rearrange-cards player)
(if (check-hand player (car (player-hand player)))
;; Drew a good card - keep going
(check-done
(lambda ()
(simulate-player player other-player k)))
;; End of our turn
(k))))))))))
;; Function to check for end-of-game
(define (check-done k)
(if (ormap (lambda (p) (null? (player-hand p))) (list player-1 player-2 you))
(begin
(enable-your-cards #f)
(send t set-status GAME-OVER-MESSAGE))
(k)))
;; Look in opponents' initial hands for matches
;; (Since each player gets 7 cards, it's impossible to run out of cards this way)
(define (find-initial-matches player)
(when (ormap (lambda (card) (check-hand player card)) (player-hand player))
;; Found a match in the hand
(find-initial-matches player)))
(find-initial-matches player-1)
(find-initial-matches player-2)
;; Run the game loop
(let loop ()
(set-region-callback! (player-r you) #f)
(set-region-callback! (player-r player-1) (player-callback player-1))
(set-region-callback! (player-r player-2) (player-callback player-2))
(send t set-status YOUR-TURN-MESSAGE)
(yield something-happened)
(if go-fish?
(begin
(if (if (null? deck)
;; No more cards; pass
#f
;; Draw a card (wait for the user to drag it)
(begin
(send t set-status GO-FISH-MESSAGE)
(wiggle-top-card)
(enable-your-cards #f)
(set-region-callback! (player-r player-1) #f)
(set-region-callback! (player-r player-2) #f)
(set-region-callback! (player-r you) fishing)
(send (car deck) user-can-move #t)
(yield something-happened)
(enable-your-cards #t)
(check-hand you (car (player-hand you)))))
(check-done loop)
(begin
(send t set-status PLAYER-1-NAME)
(simulate-player
player-1 player-2
(lambda ()
(send t set-status PLAYER-2-NAME)
(simulate-player player-2 player-1 loop))))))
(check-done loop))))))
;; Look in opponents' initial hands for matches (Since each player gets 7
;; cards, it's impossible to run out of cards this way)
(define (find-initial-matches player)
(when (ormap (lambda (card) (check-hand player card)) (player-hand player))
;; Found a match in the hand
(find-initial-matches player)))
(find-initial-matches player-1)
(find-initial-matches player-2)
;; Run the game loop
(let loop ()
(set-region-callback! (player-r you) #f)
(set-region-callback! (player-r player-1) (player-callback player-1))
(set-region-callback! (player-r player-2) (player-callback player-2))
(send t set-status YOUR-TURN-MESSAGE)
(yield something-happened)
(if go-fish?
(begin
(if (if (null? deck)
;; No more cards; pass
#f
;; Draw a card (wait for the user to drag it)
(begin (send t set-status GO-FISH-MESSAGE)
(wiggle-top-card)
(enable-your-cards #f)
(set-region-callback! (player-r player-1) #f)
(set-region-callback! (player-r player-2) #f)
(set-region-callback! (player-r you) fishing)
(send (car deck) user-can-move #t)
(yield something-happened)
(enable-your-cards #t)
(check-hand you (car (player-hand you)))))
(check-done loop)
(begin (send t set-status PLAYER-1-NAME)
(simulate-player
player-1 player-2
(lambda ()
(send t set-status PLAYER-2-NAME)
(simulate-player player-2 player-1 loop))))))
(check-done loop)))))

25
collects/games/jewel/doc.txt
View File

@ -1,30 +1,29 @@
** To play _Jewel_, run the "Games" application. ** ** To play Jewel, run the "PLT Games" application.
The board is an 8x8 array of jewels of 7 types. You need to get 3 or The board is an 8x8 array of jewels of 7 types. You need to get 3 or
more in a row horizontally or vertically in order to score points. You more in a row horizontally or vertically in order to score points.
can swap any two jewels that are next to each other up and down or You can swap any two jewels that are next to each other up and down or
left and right. The mechanic is to either: left and right. The mechanic is to either:
* Click the mouse on the first one, then drag in the direction for * Click the mouse on the first one, then drag in the direction for
the swap. the swap.
* Move a bubble using the arrow keys, lock the bubble to a jewel with * Move a bubble using the arrow keys, lock the bubble to a jewel with
the space bar, and the swap the locked jewel with another by using the space bar, and the swap the locked jewel with another by using
the arrow keys. Space unlocks a locked bubble without swapping. the arrow keys. Space unlocks a locked bubble without swapping.
Jewels can only be swapped if after the swap there are at least 3 or Jewels can only be swapped if after the swap there are at least 3 or
more same shape or color in a row or column. Otherwise the jewels more same shape or color in a row or column. Otherwise the jewels
return to their original position. There is a clock shown on the return to their original position. There is a clock shown on the
left. When it counts down to 0 the game is over. Getting 3 in a row left. When it counts down to 0 the game is over. Getting 3 in a row
adds time to the clock. adds time to the clock.
Hit spacebar to start a new game then select the difficulty number by Hit spacebar to start a new game then select the difficulty number by
pressing '0', '1', '2', '3' or '4'. You can always press 'ESC' to exit. pressing '0', '1', '2', '3' or '4'. You can always press 'ESC' to
During playing press 'p' to pause the game. exit. During playing press 'p' to pause the game.
The code is released under the LGPL. The code is released under the LGPL. The code is a conversion of Dave
The code is a conversion of Dave Ashley's C program to Scheme with some Ashley's C program to Scheme with some modifications and enhancements.
modifications and enhancements.
Enjoy. Enjoy.

8
collects/games/lights-out/doc.txt
View File

@ -1,7 +1,7 @@
_Lights Out_ ** To play Lights Out, run the "PLT Games" application.
The object of this game is to turn all of the lights off. Click on a button The object of this game is to turn all of the lights off. Click on a
to turn that light off, but beware it will also toggle the lights above, button to turn that light off, but beware it will also toggle the
below to the left and to the right of that button. lights above, below to the left and to the right of that button.
Good luck. Good luck.

356
collects/games/lights-out/lights-out.ss
View File

@ -1,212 +1,186 @@
(module lights-out mzscheme #lang mzscheme
(require "board.ss" (require "board.ss"
"../show-help.ss" "../show-help.ss"
(lib "mred.ss" "mred") (lib "mred.ss" "mred")
(lib "class.ss") (lib "class.ss")
(lib "unit.ss")) (lib "unit.ss"))
(provide game@ (provide game@ lights-out^)
lights-out^)
(define-signature lights-out^ (define-signature lights-out^ (init-board))
(init-board))
(define game@ (define game@ (unit (import)
(unit (export lights-out^) ;; : (board -> void) resets the window(s)
(import)
(export lights-out^) ;; : (board -> void) resets the window(s)
(define frame (make-object frame% "Lights Out")) (define frame (make-object frame% "Lights Out"))
(define label-size 30) (define label-size 30)
(define orange (make-object color% 255 165 0)) (define orange (make-object color% 255 165 0))
(define light-orange (make-object color% 255 220 100)) (define light-orange (make-object color% 255 220 100))
(define on-pen (send the-pen-list find-or-create-pen orange 1 'solid)) (define on-pen (send the-pen-list find-or-create-pen orange 1 'solid))
(define on-brush (send the-brush-list find-or-create-brush orange 'solid)) (define on-brush (send the-brush-list find-or-create-brush orange 'solid))
(define off-pen (send the-pen-list find-or-create-pen "BLACK" 1 'solid)) (define off-pen (send the-pen-list find-or-create-pen "BLACK" 1 'solid))
(define off-brush (send the-brush-list find-or-create-brush "BLACK" 'solid)) (define off-brush (send the-brush-list find-or-create-brush "BLACK" 'solid))
(define dull-on-pen (send the-pen-list find-or-create-pen light-orange 1 'solid)) (define dull-on-pen (send the-pen-list find-or-create-pen light-orange 1 'solid))
(define dull-on-brush (send the-brush-list find-or-create-brush light-orange 'solid)) (define dull-on-brush (send the-brush-list find-or-create-brush light-orange 'solid))
(define dull-off-pen (send the-pen-list find-or-create-pen "DARK GRAY" 1 'solid)) (define dull-off-pen (send the-pen-list find-or-create-pen "DARK GRAY" 1 'solid))
(define dull-off-brush (send the-brush-list find-or-create-brush "DARK GRAY" 'solid)) (define dull-off-brush (send the-brush-list find-or-create-brush "DARK GRAY" 'solid))
(define (flip-one i j) (define (flip-one i j)
(when (and (<= 0 i (- (vector-length current-board) 1))
(<= 0 j (- (vector-length current-board) 1)))
(vector-set!
(vector-ref current-board j)
i
(case (vector-ref (vector-ref current-board j) i)
[(x) 'o]
[(o) 'x]))))
(define (flip-surrounding i j)
(flip-one i j)
(flip-one (- i 1) j)
(flip-one i (- j 1))
(flip-one (+ i 1) j)
(flip-one i (+ j 1)))
(define current-board #f)
(define original-board #f)
(define board-canvas%
(class canvas%
(inherit get-dc get-client-size)
(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 dull-i 1]
[define dull-j 1]
[define/private tile->screen
(lambda (i j)
(let ([x (inexact->exact (floor (* (/ i (vector-length current-board)) (- (get-width) 2))))]
[y (inexact->exact (floor (* (/ j (vector-length current-board)) (- (get-height) 2))))]
[w (inexact->exact (floor (* (/ (- (get-width) 2) (vector-length current-board)))))]
[h (inexact->exact (floor (* (/ (- (get-height) 2) (vector-length current-board)))))])
(values (+ x 2)
(+ y 2)
(max 0 (- w 2))
(max 0 (- h 2)))))]
[define/private screen->tile
(lambda (x y)
(values (inexact->exact (floor (* (/ x (get-width)) (vector-length current-board))))
(inexact->exact (floor (* (/ y (get-height)) (vector-length current-board))))))]
[define/private draw-tile
(lambda (dc i j)
(when (and (<= 0 i (- (vector-length current-board) 1)) (when (and (<= 0 i (- (vector-length current-board) 1))
(<= 0 j (- (vector-length current-board) 1))) (<= 0 j (- (vector-length current-board) 1)))
(vector-set! (let ([ent (vector-ref (vector-ref current-board j) i)]
(vector-ref current-board j) [dull? (and dull-i
i dull-j
(case (vector-ref (vector-ref current-board j) i) (or (and (= i dull-i) (= j dull-j))
[(x) 'o] (and (= i (- dull-i 1)) (= j dull-j))
[(o) 'x])))) (and (= i (+ dull-i 1)) (= j dull-j))
(and (= i dull-i) (= j (- dull-j 1)))
(and (= i dull-i) (= j (+ dull-j 1)))))])
(if dull?
(if (eq? ent 'x)
(begin (send dc set-pen dull-off-pen)
(send dc set-brush dull-off-brush))
(begin (send dc set-pen dull-on-pen)
(send dc set-brush dull-on-brush)))
(if (eq? ent 'x)
(begin (send dc set-pen on-pen)
(send dc set-brush on-brush))
(begin (send dc set-pen off-pen)
(send dc set-brush off-brush)))))
(let-values ([(x y w h) (tile->screen i j)])
(send dc draw-rectangle x y w h))))]
[define/private get-changed
(lambda (x y)
(if (and x y)
(list (cons x y)
(cons (+ x 1) y)
(cons (- x 1) y)
(cons x (- y 1))
(cons x (+ y 1)))
null))]
[define/public redraw
(lambda ()
(let* ([dc (get-dc)])
(let loop ([j (vector-length current-board)])
(if (zero? j)
(void)
(begin (let loop ([i (vector-length current-board)])
(if (zero? i)
(void)
(begin (draw-tile dc (- i 1) (- j 1))
(loop (- i 1)))))
(loop (- j 1)))))))]
(define (flip-surrounding i j) [define/override on-event
(flip-one i j) (lambda (evt)
(flip-one (- i 1) j) (cond
(flip-one i (- j 1)) [(send evt button-up?)
(flip-one (+ i 1) j) (let-values ([(x y) (screen->tile (send evt get-x) (send evt get-y))])
(flip-one i (+ j 1))) (flip-surrounding x y)
(redraw))]
[(send evt leaving?)
(let ([changed (get-changed dull-i dull-j)])
(set! dull-i #f)
(set! dull-j #f)
(for-each (lambda (pair) (draw-tile (get-dc) (car pair) (cdr pair)))
changed))]
[(send evt moving?)
(let ([changed-one (get-changed dull-i dull-j)])
(let-values ([(x y) (screen->tile (send evt get-x) (send evt get-y))])
(set! dull-i x)
(set! dull-j y))
(let ([changed-two (get-changed dull-i dull-j)])
(for-each (lambda (pair) (draw-tile (get-dc) (car pair) (cdr pair)))
(append changed-one changed-two))))]
[else (void)]))]
[define/override on-paint
(lambda ()
(send (get-dc) clear)
(redraw))]
(super-instantiate () (parent frame))))
(define current-board #f) (define board-canvas (make-object board-canvas%))
(define original-board #f) (send board-canvas min-width 100)
(send board-canvas min-height 100)
(define board-canvas% (define (copy-board board)
(class canvas% (list->vector
(inherit get-dc get-client-size) (map (lambda (x) (list->vector (vector->list x)))
(vector->list board))))
(define/private (get-width) (let-values ([(w h) (get-client-size)]) w)) (define (init-board new-board)
(define/private (get-height) (let-values ([(w h) (get-client-size)]) h)) (set! current-board new-board)
(set! original-board (copy-board new-board))
(send board-canvas on-paint))
[define dull-i 1] (define button-panel (make-object horizontal-panel% frame))
[define dull-j 1]
[define/private tile->screen
(lambda (i j)
(let ([x (inexact->exact (floor (* (/ i (vector-length current-board)) (- (get-width) 2))))]
[y (inexact->exact (floor (* (/ j (vector-length current-board)) (- (get-height) 2))))]
[w (inexact->exact (floor (* (/ (- (get-width) 2) (vector-length current-board)))))]
[h (inexact->exact (floor (* (/ (- (get-height) 2) (vector-length current-board)))))])
(values (+ x 2)
(+ y 2)
(max 0 (- w 2))
(max 0 (- h 2)))))]
[define/private screen->tile
(lambda (x y)
(values (inexact->exact (floor (* (/ x (get-width)) (vector-length current-board))))
(inexact->exact (floor (* (/ y (get-height)) (vector-length current-board))))))]
[define/private draw-tile
(lambda (dc i j)
(when (and (<= 0 i (- (vector-length current-board) 1))
(<= 0 j (- (vector-length current-board) 1)))
(let ([ent (vector-ref (vector-ref current-board j) i)]
[dull? (and dull-i
dull-j
(or (and (= i dull-i)
(= j dull-j))
(and (= i (- dull-i 1))
(= j dull-j))
(and (= i (+ dull-i 1))
(= j dull-j))
(and (= i dull-i)
(= j (- dull-j 1)))
(and (= i dull-i)
(= j (+ dull-j 1)))))])
(if dull?
(if (eq? ent 'x)
(begin
(send dc set-pen dull-off-pen)
(send dc set-brush dull-off-brush))
(begin
(send dc set-pen dull-on-pen)
(send dc set-brush dull-on-brush)))
(if (eq? ent 'x)
(begin
(send dc set-pen on-pen)
(send dc set-brush on-brush))
(begin
(send dc set-pen off-pen)
(send dc set-brush off-brush)))))
(let-values ([(x y w h) (tile->screen i j)])
(send dc draw-rectangle x y w h))))]
[define/private get-changed
(lambda (x y)
(if (and x y)
(list (cons x y)
(cons (+ x 1) y)
(cons (- x 1) y)
(cons x (- y 1))
(cons x (+ y 1)))
null))]
[define/public redraw
(lambda ()
(let* ([dc (get-dc)])
(let loop ([j (vector-length current-board)])
(cond
[(zero? j) (void)]
[else
(let loop ([i (vector-length current-board)])
(cond
[(zero? i) (void)]
[else
(draw-tile dc
(- i 1)
(- j 1))
(loop (- i 1))]))
(loop (- j 1))]))))]
[define/override on-event (make-object button% "New" button-panel
(lambda (evt) (lambda x
(cond (let ([res (new-board)])
[(send evt button-up?) (when res
(let-values ([(x y) (screen->tile (send evt get-x) (send evt get-y))]) (init-board res)))))
(flip-surrounding x y)
(redraw))]
[(send evt leaving?)
(let ([changed (get-changed dull-i dull-j)])
(set! dull-i #f)
(set! dull-j #f)
(for-each (lambda (pair) (draw-tile (get-dc) (car pair) (cdr pair)))
changed))]
[(send evt moving?)
(let ([changed-one (get-changed dull-i dull-j)])
(let-values ([(x y) (screen->tile (send evt get-x) (send evt get-y))])
(set! dull-i x)
(set! dull-j y))
(let ([changed-two (get-changed dull-i dull-j)])
(for-each (lambda (pair) (draw-tile (get-dc) (car pair) (cdr pair)))
(append changed-one changed-two))))]
[else (void)]))]
[define/override on-paint
(lambda ()
(send (get-dc) clear)
(redraw))]
(super-instantiate ()
(parent frame))))
(define board-canvas (make-object board-canvas%)) (make-object button% "Reset" button-panel
(send board-canvas min-width 100) (lambda x
(send board-canvas min-height 100) (init-board original-board)))
(define (copy-board board) (let ([help (show-help (list "games" "lights-out") "Lights Out Help")])
(list->vector (make-object button% "Help" button-panel (lambda x (help))))
(map (lambda (x) (list->vector (vector->list x)))
(vector->list board))))
(define (init-board new-board) (make-object grow-box-spacer-pane% button-panel)
(set! current-board new-board) (send button-panel stretchable-height #f)
(set! original-board (copy-board new-board))
(send board-canvas on-paint))
(define button-panel (make-object horizontal-panel% frame)) (init-board (random-board
(+ 3 (random 2) (random 2) (random 2) (random 2) (random 2))))
(make-object button% "New" button-panel ;; (send frame stretchable-width #f)
(lambda x ;; (send frame stretchable-height #f)
(let ([res (new-board)]) (send frame show #t)))
(when res
(init-board res)))))
(make-object button% "Reset" button-panel
(lambda x
(init-board original-board)))
(let ([help (show-help
(list "games" "lights-out")
"Lights Out Help")])
(make-object button% "Help" button-panel
(lambda x
(help))))
(make-object grow-box-spacer-pane% button-panel)
(send button-panel stretchable-height #f)
(init-board (random-board (+ 3
(random 2)
(random 2)
(random 2)
(random 2)
(random 2))))
;(send frame stretchable-width #f)
;(send frame stretchable-height #f)
(send frame show #t))))

304
collects/games/memory/memory.ss
View File

@ -1,176 +1,164 @@
#lang mzscheme
(require (lib "cards.ss" "games" "cards")
(lib "mred.ss" "mred")
(lib "class.ss")
(lib "unit.ss")
(lib "list.ss"))
(module memory mzscheme (provide game@)
(require (lib "cards.ss" "games" "cards")
(lib "mred.ss" "mred")
(lib "class.ss")
(lib "unit.ss")
(lib "list.ss"))
(provide game@) (define game@ (unit (import) (export)
(define game@ ;; Layout width and height:
(unit (define WIDTH 5)
(import) (define HEIGHT 4)
(export) (define MAX-MATCHES (/ (* WIDTH HEIGHT) 2))
;; Layout width and height: ;; Randomize
(define WIDTH 5) (random-seed (modulo (current-milliseconds) 10000))
(define HEIGHT 4)
(define MAX-MATCHES (/ (* WIDTH HEIGHT) 2))
;; Randomize ;; Set up the table
(random-seed (modulo (current-milliseconds) 10000)) (define t (make-table "Memory" (+ 2 WIDTH) (+ 1 HEIGHT)))
(send t show #t)
(send t set-double-click-action #f)
;; Set up the table ;; Get table width & height
(define t (make-table "Memory" (+ 2 WIDTH) (+ 1 HEIGHT))) (define w (send t table-width))
(send t show #t) (define h (send t table-height))
(send t set-double-click-action #f)
;; Get table width & height ;; Set up the cards
(define w (send t table-width)) (define deck
(define h (send t table-height)) (let ([cards (map (lambda (name value)
(let ([bm (make-object
bitmap%
(build-path
(collection-path "games" "memory" "images")
(format "~a.png" name)))])
(make-card bm #f 0 value)))
'("club" "heart" "spade" "diamond"
"happy" "unhappy"
"fish" "two-fish"
"jack" "star")
'(1 2 3 4 5 6 7 8 9 10))])
(append cards (map (lambda (c) (send c copy)) cards))))
(for-each (lambda (card)
(send card user-can-move #f)
(send card user-can-flip #t))
deck)
;; Set up the cards ;; Card width & height
(define deck (define cw (send (car deck) card-width))
(let ([cards (map (lambda (name value) (define ch (send (car deck) card-height))
(let ([bm (make-object bitmap%
(build-path
(collection-path "games" "memory" "images")
(format "~a.png" name)))])
(make-card bm #f 0 value)))
'("club" "heart" "spade" "diamond"
"happy" "unhappy"
"fish" "two-fish"
"jack" "star")
'(1 2 3 4 5 6 7 8 9 10))])
(append cards (map (lambda (c) (send c copy)) cards))))
(for-each
(lambda (card)
(send card user-can-move #f)
(send card user-can-flip #t))
deck)
;; Card width & height (define dx (/ cw (+ 2 WIDTH)))
(define cw (send (car deck) card-width)) (define dy (/ ch (+ 1 HEIGHT)))
(define ch (send (car deck) card-height))
(define dx (/ cw (+ 2 WIDTH))) (define match-x (- w cw dx))
(define dy (/ ch (+ 1 HEIGHT))) (define match-y dy)
(define match-x (- w cw dx)) (define time-h (+ 12 5 5))
(define match-y dy) (define time-x match-x)
(define time-y (+ ch dy dy))
(define time-h (+ 12 5 5)) ;; Put the cards on the table
(define time-x match-x) (send t add-cards deck match-x match-y)
(define time-y (+ ch dy dy))
;; Put the cards on the table ;; Setup
(send t add-cards deck match-x match-y) (define (setup)
(reset-timer)
(set! deck (shuffle-list deck 7))
(send t stack-cards deck)
(send t move-cards deck 0 0
(lambda (pos)
(let ([i (modulo pos WIDTH)]
[j (quotient pos WIDTH)])
(values (+ dx (* i (+ cw dx)))
(+ dy (* j (+ ch dy))))))))
;; Setup ;; Number of matches found so far:
(define (setup) (define matches 0)
(reset-timer)
(set! deck (shuffle-list deck 7))
(send t stack-cards deck)
(send t move-cards deck 0 0
(lambda (pos)
(let ([i (modulo pos WIDTH)]
[j (quotient pos WIDTH)])
(values (+ dx (* i (+ cw dx)))
(+ dy (* j (+ ch dy))))))))
;; Number of matches found so far: ;; First card flipped, or #f if non flipped, yet
(define matches 0) (define card-1 #f)
;; First card flipped, or #f if non flipped, yet (define (flip-and-match c)
(define card-1 #f) (cond [(eq? c card-1)
;; Cancel first card
(send t flip-card c)
(set! card-1 #f)]
[(not (send c face-down?))
;; Can't click a matched card, unless the game is over,
;; in which case we reset the game
(when (= matches MAX-MATCHES)
(send t flip-cards deck)
(set! matches 0)
(setup))]
[else
;; Flip over a card...
(send t flip-card c)
(send t card-to-front c)
(run-timer)
(cond [(not card-1)
;; That was the first card
(set! card-1 c)]
[(and (equal? (send card-1 get-value) (send c get-value))
(equal? (send card-1 get-suit) (send c get-suit)))
;; Match
(send t pause 0.5)
(send t move-cards (list card-1 c) match-x match-y)
(set! card-1 #f)
(set! matches (add1 matches))]
[else
;; Not a match
(send t pause 0.5)
(send t flip-cards (list card-1 c))
(set! card-1 #f)])]))
(send t set-single-click-action flip-and-match)
(define (flip-and-match c) ;; The timer turns out to be the most difficult part:
(cond (define (make-time-region secs)
[(eq? c card-1) (make-region time-x time-y cw time-h
;; Cancel first card (if (>= secs 6000)
(send t flip-card c) "XX:XX"
(set! card-1 #f)] (format
[(not (send c face-down?)) "~a:~a"
;; Can't click a matched card, unless the game is over, (substring (number->string (+ 100 (quotient secs 60))) 1)
;; in which case we reset the game (substring (number->string (+ 100 (modulo secs 60))) 1)))
(when (= matches MAX-MATCHES) #f))
(send t flip-cards deck) (define start-time #f) ; in inexact milliseconds; #f means not started
(set! matches 0) (define shown-seconds 0) ; used to compute the delay until the next update
(setup))] (define time-region (make-time-region 0)) ; old region, so we wan remove it
[else (send t add-region time-region) ; start with the initial region added
;; Flip over a card... (define (show-time n)
(send t flip-card c) ;; Compute new time to show:
(send t card-to-front c) (set! shown-seconds n)
(run-timer) ;; Update the time by removing the old region and adding a new one:
(cond (send t begin-card-sequence)
[(not card-1) (send t remove-region time-region)
;; That was the first card (set! time-region (make-time-region shown-seconds))
(set! card-1 c)] (send t add-region time-region)
[(and (equal? (send card-1 get-value) (send t end-card-sequence))
(send c get-value)) (define (get-update-delta)
(equal? (send card-1 get-suit) ;; Figure out how many milliseconds to sleep before the next update
(send c get-suit))) (max 0 (inexact->exact (floor (- (+ start-time (* 1000 shown-seconds) 1000)
;; Match (current-inexact-milliseconds))))))
(send t pause 0.5) (define time-timer
(send t move-cards (list card-1 c) match-x match-y) (make-object timer%
(set! card-1 #f) (lambda ()
(set! matches (add1 matches))] (unless (= matches MAX-MATCHES)
[else (show-time
;; Not a match (inexact->exact
(send t pause 0.5) (floor (/ (- (current-inexact-milliseconds) start-time) 1000))))
(send t flip-cards (list card-1 c)) (send time-timer start (get-update-delta) #t)))))
(set! card-1 #f)])])) (define (reset-timer)
(send t set-single-click-action flip-and-match) (send time-timer stop)
(set! start-time #f)
(show-time 0))
(define (run-timer)
(unless start-time
(set! start-time (current-inexact-milliseconds))
(send time-timer start 1000 #t)))
;; The timer turns out to be the most difficult part: ;; Start the game:
(define (make-time-region secs) (send t pause 0.25)
(make-region time-x time-y cw time-h (setup)))
(if (>= secs 6000)
"XX:XX"
(format
"~a:~a"
(substring (number->string (+ 100 (quotient secs 60))) 1)
(substring (number->string (+ 100 (modulo secs 60))) 1)))
#f))
(define start-time #f) ; in inexact milliseconds; #f means not started
(define shown-seconds 0) ; used to compute the delay until the next update
(define time-region (make-time-region 0)) ; old region, so we wan remove it
(send t add-region time-region) ; start with the initial region added
(define (show-time n)
;; Compute new time to show:
(set! shown-seconds n)
;; Update the time by removing the old region and adding a new one:
(send t begin-card-sequence)
(send t remove-region time-region)
(set! time-region (make-time-region shown-seconds))
(send t add-region time-region)
(send t end-card-sequence))
(define (get-update-delta)
;; Figure out how many milliseconds to sleep before the next update
(max 0
(inexact->exact
(floor
(- (+ start-time (* 1000 shown-seconds) 1000)
(current-inexact-milliseconds))))))
(define time-timer
(make-object timer% (lambda ()
(unless (= matches MAX-MATCHES)
(show-time
(inexact->exact
(floor (/ (- (current-inexact-milliseconds)
start-time)
1000))))
(send time-timer start (get-update-delta) #t)))))
(define (reset-timer)
(send time-timer stop)
(set! start-time #f)
(show-time 0))
(define (run-timer)
(unless start-time
(set! start-time (current-inexact-milliseconds))
(send time-timer start 1000 #t)))
;; Start the game:
(send t pause 0.25)
(setup))))

902
collects/games/mines/mines.ss
View File

@ -3,507 +3,475 @@
;;;;;;;;;;;;;;;;; Configuration ;;;;;;;;;;;;;;;;;; ;;;;;;;;;;;;;;;;; Configuration ;;;;;;;;;;;;;;;;;;
(module mines mzscheme #lang mzscheme
(require (lib "etc.ss") ; defines build-vector (require (lib "etc.ss") ; defines build-vector
(lib "class.ss") (lib "class.ss")
(lib "unit.ss") (lib "unit.ss")
(lib "mred.ss" "mred") (lib "mred.ss" "mred")
(lib "include-bitmap.ss" "mrlib")) (lib "include-bitmap.ss" "mrlib"))
(provide game@) (provide game@)
;; Layout constants ;; Layout constants
(define TILE-HW 24) ; height/width of a tile (define TILE-HW 24) ; height/width of a tile
(define B-WIDTH 16) ; number of tiles across (define B-WIDTH 16) ; number of tiles across
(define B-HEIGHT 16) ; number of tiles down (define B-HEIGHT 16) ; number of tiles down
(define THE-BOMB-COUNT 30) ; number of bombs to hide (define THE-BOMB-COUNT 30) ; number of bombs to hide
;; Bitmap constants ;; Bitmap constants
(define tile-bm (include-bitmap "images/tile.png")) (define tile-bm (include-bitmap "images/tile.png"))
(define lclick-bm (include-bitmap "images/lclick-tile.png")) (define lclick-bm (include-bitmap "images/lclick-tile.png"))
(define rclick-bm (include-bitmap "images/rclick-tile.png")) (define rclick-bm (include-bitmap "images/rclick-tile.png"))
(define local-bm (include-bitmap "images/local-tile.png")) (define local-bm (include-bitmap "images/local-tile.png"))
(define near-bm (include-bitmap "images/near-tile.png")) (define near-bm (include-bitmap "images/near-tile.png"))
(define bomb-bm (include-bitmap "images/bomb.png")) (define bomb-bm (include-bitmap "images/bomb.png"))
(define explode-bm (include-bitmap "images/explode.png")) (define explode-bm (include-bitmap "images/explode.png"))
(define flag-bm (include-bitmap "images/flag.png")) (define flag-bm (include-bitmap "images/flag.png"))
(define DIGIT-COLOR-NAMES (define DIGIT-COLOR-NAMES
;; 0th is background; 8th is foreground ;; 0th is background; 8th is foreground
(vector "WHITE" "BLUE" "FORESTGREEN" "RED" "PURPLE" (vector "WHITE" "BLUE" "FORESTGREEN" "RED" "PURPLE"
"ORANGE" "YELLOW" "BROWN" "BLACK")) "ORANGE" "YELLOW" "BROWN" "BLACK"))
(define DIGIT-COLORS (define DIGIT-COLORS
(build-vector 9 (lambda (i) (build-vector 9 (lambda (i)
(send the-color-database find-color (send the-color-database find-color
(vector-ref DIGIT-COLOR-NAMES i))))) (vector-ref DIGIT-COLOR-NAMES i)))))
(define BG-COLOR (vector-ref DIGIT-COLORS 0)) (define BG-COLOR (vector-ref DIGIT-COLORS 0))
(define FG-COLOR (vector-ref DIGIT-COLORS 8)) (define FG-COLOR (vector-ref DIGIT-COLORS 8))
(define BLACK-COLOR (send the-color-database find-color "BLACK")) (define BLACK-COLOR (send the-color-database find-color "BLACK"))
(define BG-PEN (make-object pen% BG-COLOR 1 'solid)) (define BG-PEN (make-object pen% BG-COLOR 1 'solid))
(define FG-PEN (make-object pen% FG-COLOR 1 'solid)) (define FG-PEN (make-object pen% FG-COLOR 1 'solid))
;; A function for looping over numbers: ;; A function for looping over numbers:
(define (step-while first test until f accum init) (define (step-while first test until f accum init)
(let loop ([n first][a init]) (let loop ([n first][a init])
(if (test n until) (if (test n until)
(loop (add1 n) (accum a (f n))) (loop (add1 n) (accum a (f n)))
a))) a)))
;; The rest of the game is implemented in a unit so it can be started multiple times ;; The rest of the game is implemented in a unit so it can be started
(define game@ ;; multiple times
(unit (define game@ (unit (import) (export)
(import)
(export)
;; ;;;;;;;;;;;;;;; Tiles ;;;;;;;;;;;;;;;;;; ;; ;;;;;;;;;;;;;;; Tiles ;;;;;;;;;;;;;;;;;;
;; Class for a tile object ;; Class for a tile object
(define tile:plain% (define tile:plain%
(class object% (class object%
(define state 'covered) ; 'covered, 'flagged, 'semi-flagged, or 'uncovered (define state 'covered) ; 'covered, 'flagged, 'semi-flagged, or 'uncovered
(define neighbor-bomb-count 0) ; 0 to 8 (define neighbor-bomb-count 0) ; 0 to 8
(define area-hilite 'none) ; 'none, 'local, 'near (define area-hilite 'none) ; 'none, 'local, 'near
(public* (public*
[set-state [set-state (lambda (newstate) (set! state newstate))]
(lambda (newstate) [get-state (lambda () state)]
(set! state newstate))] [set-neighbor-bomb-count (lambda (c) (set! neighbor-bomb-count c))]
[get-state [get-neighbor-bomb-count (lambda () neighbor-bomb-count)]
(lambda () [set-area-hilite (lambda (mode) (set! area-hilite mode))]
state)] [draw-text-tile
[set-neighbor-bomb-count (lambda (dc x y w h hilite border? str color)
(lambda (c) (if border?
(set! neighbor-bomb-count c))] (send dc draw-bitmap
[get-neighbor-bomb-count (case hilite
(lambda () [(left) lclick-bm]
neighbor-bomb-count)] [(right) rclick-bm]
[set-area-hilite [else (case area-hilite
(lambda (mode) [(near) near-bm]
(set! area-hilite mode))] [(local) local-bm]
[draw-text-tile [else tile-bm])])
(lambda (dc x y w h hilite border? str color) x y)
(if border? (begin (send dc set-pen BG-PEN)
(send dc draw-bitmap (send dc draw-rectangle x y w h)))
(case hilite (when str
[(left) lclick-bm] (cond [(string? str)
[(right) rclick-bm] (send dc set-text-foreground (or color FG-COLOR))
[else (case area-hilite ;; Draw text centered in the tile's box:
[(near) near-bm] (let-values ([(tw th d a) (send dc get-text-extent str)])
[(local) local-bm] (send dc draw-text str
[else tile-bm])]) (+ x (/ (- w tw) 2))
x y) (+ y (/ (- h (- th d)) 2))))]
(begin [else
(send dc set-pen BG-PEN) (send dc draw-bitmap str x y 'solid BLACK-COLOR
(send dc draw-rectangle x y w h))) (send str get-loaded-mask))])))]
(when str [draw
(cond (lambda (dc x y w h hilite)
[(string? str) (case state
(send dc set-text-foreground (or color FG-COLOR)) [(covered) (draw-text-tile dc x y w h hilite #t #f #f)]
;; Draw text centered in the tile's box: [(flagged) (draw-text-tile dc x y w h hilite #t flag-bm #f)]
(let-values ([(tw th d a) (send dc get-text-extent str)]) [(semi-flagged) (draw-text-tile dc x y w h hilite #t "?" #f)]
(send dc draw-text str [(uncovered)
(+ x (/ (- w tw) 2)) (draw-text-tile
(+ y (/ (- h (- th d)) 2))))] dc x y w h #f #f
[else (if (zero? neighbor-bomb-count)
(send dc draw-bitmap str x y 'solid BLACK-COLOR #f
(send str get-loaded-mask))])))] (number->string neighbor-bomb-count))
[draw (vector-ref DIGIT-COLORS neighbor-bomb-count))]))])
(lambda (dc x y w h hilite)
(case state
[(covered) (draw-text-tile dc x y w h hilite #t #f #f)]
[(flagged) (draw-text-tile dc x y w h hilite #t flag-bm #f)]
[(semi-flagged) (draw-text-tile dc x y w h hilite #t "?" #f)]
[(uncovered) (draw-text-tile
dc x y w h #f #f
(if (zero? neighbor-bomb-count)
#f
(number->string neighbor-bomb-count))
(vector-ref DIGIT-COLORS neighbor-bomb-count))]))])
(super-instantiate ()))) (super-instantiate ())))
;; Class for a tile with a bomb underneath ;; Class for a tile with a bomb underneath
(define tile:bomb% (define tile:bomb%
(class tile:plain% (class tile:plain%
(inherit get-state draw-text-tile) (inherit get-state draw-text-tile)
(define explode-source? #f) ; draw this bomb as the one that exploded? (define explode-source? #f) ; draw this bomb as the one that exploded?
(public* (public*
[set-explode-source [set-explode-source (lambda (s?) (set! explode-source? s?))])
(lambda (s?)
(set! explode-source? s?))])
(override* (override*
[draw [draw
(lambda (dc x y w h hilite) (lambda (dc x y w h hilite)
(if (eq? (get-state) 'uncovered) (if (eq? (get-state) 'uncovered)
(draw-text-tile dc x y w h #f #f (draw-text-tile dc x y w h #f #f
(if explode-source? explode-bm bomb-bm) #f) (if explode-source? explode-bm bomb-bm) #f)
(super draw dc x y w h hilite)))]) (super draw dc x y w h hilite)))])
(super-instantiate ()))) (super-instantiate ())))
(define (is-bomb? x) (define (is-bomb? x)
(is-a? x tile:bomb%)) (is-a? x tile:bomb%))
;; ;;;;;;;;;;;;;;; Board Operations ;;;;;;;;;;;;;;;;;; ;; ;;;;;;;;;;;;;;; Board Operations ;;;;;;;;;;;;;;;;;;
;; A board is a vector of vectors of tiles ;; A board is a vector of vectors of tiles
(define board #f) ; initialized by calling make-board! (define board #f) ; initialized by calling make-board!
(define (get-tile x y) (define (get-tile x y)
(vector-ref (vector-ref board x) y)) (vector-ref (vector-ref board x) y))
(define (set-tile! x y t) (define (set-tile! x y t)
(vector-set! (vector-ref board x) y t)) (vector-set! (vector-ref board x) y t))
(define (do-surrounding x y accum start default f) (define (do-surrounding x y accum start default f)
(step-while -1 <= 1 (step-while -1 <= 1
(lambda (dx) (lambda (dx)
(step-while -1 <= 1 (step-while -1 <= 1
(lambda (dy) (lambda (dy)
(if (and (not (and (zero? dx) (zero? dy))) (if (and (not (and (zero? dx) (zero? dy)))
(< -1 (+ x dx) B-WIDTH) (< -1 (+ x dx) B-WIDTH)
(< -1 (+ y dy) B-HEIGHT)) (< -1 (+ y dy) B-HEIGHT))
(f dx dy) (f dx dy)
default)) default))
accum start)) accum start))
accum start)) accum start))
(define (count-surrounding-bombs x y) (define (count-surrounding-bombs x y)
(do-surrounding (do-surrounding
x y + 0 0 x y + 0 0
(lambda (dx dy) (lambda (dx dy) (if (is-bomb? (get-tile (+ x dx) (+ y dy))) 1 0))))
(if (is-bomb? (get-tile (+ x dx) (+ y dy)))
1
0))))
(define (for-each-tile f) (define (for-each-tile f)
(step-while 0 < B-WIDTH (step-while 0 < B-WIDTH
(lambda (x) (lambda (x)
(step-while 0 < B-HEIGHT (step-while 0 < B-HEIGHT (lambda (y) (f (get-tile x y) x y))
(lambda (y) void (void)))
(f (get-tile x y) x y)) void (void)))
void (void)))
void (void)))
(define (make-board!) (define (make-board!)
;; Create the board ;; Create the board
(set! board (set! board
(build-vector B-WIDTH (build-vector B-WIDTH
(lambda (i) (lambda (i)
(build-vector B-HEIGHT (build-vector B-HEIGHT
(lambda (j) (lambda (j) (make-object tile:plain%))))))
(make-object tile:plain%)))))) ;; Randomly insert bombs
;; Randomly insert bombs (let loop ([n THE-BOMB-COUNT])
(let loop ([n THE-BOMB-COUNT]) (unless (zero? n)
(unless (zero? n) (let rloop ()
(let rloop () (let* ([x (random B-WIDTH)]
(let* ([x (random B-WIDTH)] [y (random B-HEIGHT)]
[y (random B-HEIGHT)] [t (get-tile x y)])
[t (get-tile x y)]) (if (is-a? t tile:bomb%)
(if (is-a? t tile:bomb%) (rloop)
(rloop) (begin
(begin (set-tile! x y (make-object tile:bomb%))
(set-tile! x y (make-object tile:bomb%)) (loop (sub1 n))))))))
(loop (sub1 n)))))))) ;; Set surrounding-bomb counts for each tile:
;; Set surrounding-bomb counts for each tile: (for-each-tile (lambda (t x y)
(send t
set-neighbor-bomb-count
(count-surrounding-bombs x y)))))
;; ;;;;;;;;;;;;;;; Graphic Interface ;;;;;;;;;;;;;;;;;;
;; Make a frame:
(define frame
(instantiate
(class frame%
(augment*
[on-close ; stop the timer, in case it's running
(lambda ()
(send board-canvas stop-timer)
(inner () on-close))])
(super-instantiate ()))
("Minesweeper")
[style '(no-resize-border metal)]))
;; Make the row of controls at the top of the frame:
(define panel (make-object horizontal-panel% frame))
(send panel stretchable-height #f)
(define (make-centering-pane parent)
(let ([p (make-object vertical-pane% parent)])
(send p set-alignment 'center 'center)
p))
(define time-display
(make-object message% "Time: 00000" (make-centering-pane panel)))
(make-object button% "Reset" (make-centering-pane panel)
(lambda (b e) (send board-canvas reset)))
(define count-display
(make-object message% "Count: 000" (make-centering-pane panel)))
(define (set-time t)
(send time-display set-label (string-append "Time: " (number->string t))))
(define (set-count c)
(send count-display set-label (string-append "Bombs: " (number->string c))))
;; Most of the work is in this class, which extends the basic canvas
;; class for drawing the Minesweeper board and handling clicks.
(define board-canvas%
(class canvas%
(init frame)
(inherit get-dc min-client-width min-client-height
stretchable-width stretchable-height)
(define clicking #f) ; #t => click in progress
(define clicking-x 0) ; x position of click in progress
(define clicking-y 0) ; y position of click in progress
(define clicking-right? #f) ; #t => right-click in progress
(define area-hilite #f) ; tile with mouse pointer over it
(define area-hilites null) ; tiles+locs hilited due to mouse-over
(define ready? #t) ; #t => accept clicks
(define start-time #f) ; time of first click
(define elapsed-time 0) ; seconds since first click
(define timer #f) ; a timer that updates elapsed-time
(define bomb-count THE-BOMB-COUNT) ; number of bombs minus the number of flags
(define cover-count (* B-HEIGHT B-WIDTH)) ; number of uncovered tiles
(public*
[stop-timer ; stop the clock
(lambda ()
(when timer
(send timer stop)
(set! timer #f)))]
[start-timer ; start the clock
(lambda ()
(set! start-time (current-seconds))
(set! timer
(make-object
(class timer% ()
(override*
[notify
(lambda ()
(let ([e (- (current-seconds) start-time)])
(when (> e elapsed-time)
(set! elapsed-time e)
(set-time e))))])
(super-instantiate ()))))
(send timer start 100 #f))] ; check time roughly every .1 secs
[end-of-game ; stop the game
(lambda (win?)
(stop-timer)
(set! ready? #f)
(set! start-time #f)
(unless win? (show-all-bombs))
(set-count THE-BOMB-COUNT))]
[explode ; stop the game because the player hit a bomb
(lambda () (end-of-game #f))]
[win ; stop the game because the player won
(lambda () (end-of-game #t))]
[reset ; quit the current game and reset the board
(lambda ()
(stop-timer)
(set! ready? #t)
(set! start-time #f)
(set! elapsed-time 0)
(set! cover-count (* B-HEIGHT B-WIDTH))
(send dc clear)
(set-time 0)
(set! bomb-count THE-BOMB-COUNT)
(set-count THE-BOMB-COUNT)
(make-board!)
(on-paint))]
[show-all-bombs ; show the location of each bomb (after end-of-game)
(lambda ()
(for-each-tile (lambda (t x y) (for-each-tile (lambda (t x y)
(send t (when (is-bomb? t)
set-neighbor-bomb-count (change-state t (send t get-state) 'uncovered #f)
(count-surrounding-bombs x y))))) (paint-one t x y)))))]
[autoclick-surrounding ; autoclick tiles (after a 0 tile is uncovered)
;; ;;;;;;;;;;;;;;; Graphic Interface ;;;;;;;;;;;;;;;;;; (lambda (x y)
(do-surrounding
;; Make a frame: x y void (void) (void)
(define frame (instantiate (lambda (dx dy)
(class frame% (let* ([x2 (+ x dx)]
(augment* [y2 (+ y dy)]
[on-close ; stop the timer, in case it's running [t (get-tile x2 y2)]
(lambda () [state (send t get-state)]
(send board-canvas stop-timer) [nc (send t get-neighbor-bomb-count)])
(inner () on-close))]) (unless (eq? state 'uncovered)
(super-instantiate ())) (change-state t state 'uncovered #t)
("Minesweeper") (paint-one t x2 y2)
[style '(no-resize-border metal)])) (when (zero? nc) (autoclick-surrounding x2 y2)))))))]
[change-state ; update counters after a tile changes
;; Make the row of controls at the top of the frame: (lambda (t old-state new-state update-count?)
(define panel (make-object horizontal-panel% frame)) (send t set-state new-state)
(send panel stretchable-height #f) (when (and update-count? (not (eq? new-state old-state)))
(define (make-centering-pane parent) (when (eq? new-state 'uncovered)
(let ([p (make-object vertical-pane% parent)]) (set! cover-count (sub1 cover-count)))
(send p set-alignment 'center 'center) (when (eq? old-state 'uncovered)
p)) (set! cover-count (add1 cover-count)))
(when (eq? new-state 'flagged)
(define time-display (make-object message% "Time: 00000" (make-centering-pane panel))) (set! bomb-count (sub1 bomb-count))
(make-object button% "Reset" (make-centering-pane panel) (set-count bomb-count))
(lambda (b e) (send board-canvas reset))) (when (eq? old-state 'flagged)
(define count-display (make-object message% "Count: 000" (make-centering-pane panel))) (set! bomb-count (add1 bomb-count))
(set-count bomb-count))))]
(define (set-time t) [do-select ; handle a click on a tile
(send time-display set-label (string-append "Time: " (number->string t)))) (lambda (x y flag?)
(define (set-count c) (let* ([t (get-tile x y)]
(send count-display set-label (string-append "Bombs: " (number->string c)))) [state (send t get-state)]
[new-state (case state
;; Most of the work is in this class, which extends the basic canvas [(covered) (if flag? 'flagged 'uncovered)]
;; class for drawing the Minesweeper board and handling clicks. [(flagged) (if flag? 'semi-flagged state)]
(define board-canvas% [(semi-flagged) (if flag? 'covered 'uncovered)]
(class canvas% [else state])]
(init frame) [nc (send t get-neighbor-bomb-count)]
(inherit get-dc min-client-width min-client-height [new-uncover? (and (eq? new-state 'uncovered)
stretchable-width stretchable-height) (not (eq? state 'uncovered)))]
[bomb? (is-bomb? t)])
(define clicking #f) ; #t => click in progress (change-state t state new-state #t)
(define clicking-x 0) ; x position of click in progress (when (and new-uncover? bomb?) (send t set-explode-source #t))
(define clicking-y 0) ; y position of click in progress (paint-one t x y)
(define clicking-right? #f) ; #t => right-click in progress (when new-uncover?
(define area-hilite #f) ; tile with mouse pointer over it (if bomb?
(define area-hilites null) ; tiles+locs hilited due to mouse-over (explode)
(define ready? #t) ; #t => accept clicks (begin
(define start-time #f) ; time of first click (if (zero? nc)
(define elapsed-time 0) ; seconds since first click (autoclick-surrounding x y)
(define timer #f) ; a timer that updates elapsed-time (set-near-hilite t x y))))
(define bomb-count THE-BOMB-COUNT) ; number of bombs minus the number of flags (when (and ready? (= cover-count THE-BOMB-COUNT)) (win)))))]
(define cover-count (* B-HEIGHT B-WIDTH)) ; number of uncovered tiles [paint-one ; draw one tile
(lambda (t x y)
(public* (let ([xloc (* x TILE-HW)]
[stop-timer ; stop the clock [yloc (* y TILE-HW)])
(lambda () (send t draw dc xloc yloc TILE-HW TILE-HW
(when timer (and (eq? t clicking) (if clicking-right? 'right 'left)))))]
(send timer stop) [set-near-hilite
(set! timer #f)))] (lambda (t x y)
[start-timer ; start the clock (set! area-hilite t)
(lambda () (set! area-hilites
(set! start-time (current-seconds))
(set! timer
(make-object
(class timer% ()
(override*
[notify
(lambda ()
(let ([e (- (current-seconds) start-time)])
(when (> e elapsed-time)
(set! elapsed-time e)
(set-time e))))])
(super-instantiate ()))))
(send timer start 100 #f))] ; check time roughly every .1 secs
[end-of-game ; stop the game
(lambda (win?)
(stop-timer)
(set! ready? #f)
(set! start-time #f)
(unless win?
(show-all-bombs))
(set-count THE-BOMB-COUNT))]
[explode ; stop the game because the player hit a bomb
(lambda ()
(end-of-game #f))]
[win ; stop the game because the player won
(lambda ()
(end-of-game #t))]
[reset ; quit the current game and reset the board
(lambda ()
(stop-timer)
(set! ready? #t)
(set! start-time #f)
(set! elapsed-time 0)
(set! cover-count (* B-HEIGHT B-WIDTH))
(send dc clear)
(set-time 0)
(set! bomb-count THE-BOMB-COUNT)
(set-count THE-BOMB-COUNT)
(make-board!)
(on-paint))]
[show-all-bombs ; show the location of each bomb (after end-of-game)
(lambda ()
(for-each-tile (lambda (t x y)
(when (is-bomb? t)
(change-state t (send t get-state) 'uncovered #f)
(paint-one t x y)))))]
[autoclick-surrounding ; autoclick tiles (after a 0 tile is uncovered)
(lambda (x y)
(do-surrounding (do-surrounding
x y void (void) (void) x y append null null
(lambda (dx dy) (lambda (dx dy)
(let* ([x2 (+ x dx)] (let* ([x (+ x dx)]
[y2 (+ y dy)] [y (+ y dy)]
[t (get-tile x2 y2)] [t (get-tile x y)])
[state (send t get-state)] (if (not (eq? (send t get-state) 'uncovered))
[nc (send t get-neighbor-bomb-count)]) (begin
(unless (eq? state 'uncovered) (send t set-area-hilite 'near)
(change-state t state 'uncovered #t) (paint-one t x y)
(paint-one t x2 y2) (list (list t x y)))
(when (zero? nc) null))))))]
(autoclick-surrounding x2 y2)))))))] [clear-area-hilite
[change-state ; update counters after a tile changes (lambda ()
(lambda (t old-state new-state update-count?) (when area-hilite
(send t set-state new-state) (set! area-hilite #f)
(when (and update-count? (not (eq? new-state old-state))) (for-each (lambda (p)
(when (eq? new-state 'uncovered) (send (car p) set-area-hilite 'none)
(set! cover-count (sub1 cover-count))) (paint-one (car p) (cadr p) (caddr p)))
(when (eq? old-state 'uncovered) area-hilites)
(set! cover-count (add1 cover-count))) (set! area-hilites null)))])
(when (eq? new-state 'flagged) (override*
(set! bomb-count (sub1 bomb-count)) [on-event ; handle a click
(set-count bomb-count)) (lambda (e)
(when (eq? old-state 'flagged) (when ready?
(set! bomb-count (add1 bomb-count)) (unless start-time ; if the timer's not running, start it
(set-count bomb-count))))] (when (send e button-down?)
[do-select ; handle a click on a tile (start-timer)))
(lambda (x y flag?) ;; Find the time for an (x,y) pixel position in the canvas
(let* ([t (get-tile x y)] (let* ([x (quotient (inexact->exact (floor (send e get-x))) TILE-HW)]
[state (send t get-state)] [y (quotient (inexact->exact (floor (send e get-y))) TILE-HW)]
[new-state [t (if (and (< -1 x B-WIDTH) (< -1 y B-HEIGHT))
(case state (get-tile x y)
[(covered) #f)]) ; not a tile
(if flag? 'flagged 'uncovered)] (cond
[(flagged) [(and clicking (or (not (eq? t clicking))
(if flag? 'semi-flagged state)] (not (or (send e button-up?)
[(semi-flagged) (send e dragging?)))))
(if flag? 'covered 'uncovered)] ;; We're already in the middle of a click, and the mouse
[else state])] ;; was moved. Paint the tile to show whether releasing the
[nc (send t get-neighbor-bomb-count)] ;; mouse button selects the tile.
[new-uncover? (and (eq? new-state 'uncovered) (let ([old clicking])
(not (eq? state 'uncovered)))] (set! clicking #f)
[bomb? (is-bomb? t)]) (paint-one old clicking-x clicking-y))]
(change-state t state new-state #t) [(and t
(when (and new-uncover? bomb?) (not (eq? (send t get-state) 'uncovered))
(send t set-explode-source #t)) (or (send e button-down?)
(paint-one t x y) (and (send e dragging?)
(when new-uncover? (= x clicking-x)
(if bomb? (= y clicking-y))))
(explode) ;; Start a click on a covered tile
(begin (clear-area-hilite)
(if (zero? nc) (set! clicking t)
(autoclick-surrounding x y) (set! clicking-x x)
(set-near-hilite t x y)))) (set! clicking-y y)
(when (and ready? (= cover-count THE-BOMB-COUNT)) (when (send e button-down?)
(win)))))] (set! clicking-right?
[paint-one ; draw one tile (or (send e button-down? 'right)
(lambda (t x y) (send e get-control-down)
(let ([xloc (* x TILE-HW)] (send e get-alt-down)
[yloc (* y TILE-HW)]) (send e get-meta-down))))
(send t draw dc xloc yloc TILE-HW TILE-HW (paint-one t x y)]
(and (eq? t clicking) [(and clicking (send e button-up?))
(if clicking-right? 'right 'left)))))] ;; User released the button
[set-near-hilite (set! clicking #f)
(lambda (t x y) (do-select x y clicking-right?)]
(set! area-hilite t) [(and (not (send e leaving?))
(set! area-hilites t
(do-surrounding x y append null null (eq? (send t get-state) 'uncovered)
(lambda (dx dy) (positive? (send t get-neighbor-bomb-count)))
(let* ([x (+ x dx)] ;; Moving over uncovered number
[y (+ y dy)] (unless (eq? t area-hilite)
[t (get-tile x y)]) (clear-area-hilite)
(if (not (eq? (send t get-state) 'uncovered)) (set-near-hilite t x y))]
(begin [(and (not (send e leaving?))
(send t set-area-hilite 'near) t
(paint-one t x y) (not (eq? (send t get-state) 'uncovered)))
(list (list t x y))) ;; Moving over tile
null))))))] (unless (eq? t area-hilite)
[clear-area-hilite (clear-area-hilite)
(lambda () (set! area-hilite t)
(when area-hilite (set! area-hilites (list (list t x y)))
(set! area-hilite #f) (send t set-area-hilite 'local)
(for-each (lambda (p) (paint-one t x y))]
(send (car p) set-area-hilite 'none) [else (clear-area-hilite)]))))]
(paint-one (car p) (cadr p) (caddr p))) [on-paint ; refresh the board
area-hilites) (lambda () (for-each-tile (lambda (tile x y) (paint-one tile x y))))])
(set! area-hilites null)))])
(override*
[on-event ; handle a click
(lambda (e)
(when ready?
(unless start-time ; if the timer's not running, start it
(when (send e button-down?)
(start-timer)))
;; Find the time for an (x,y) pixel position in the canvas
(let* ([x (quotient (inexact->exact (floor (send e get-x)))
TILE-HW)]
[y (quotient (inexact->exact (floor (send e get-y)))
TILE-HW)]
[t (if (and (< -1 x B-WIDTH)
(< -1 y B-HEIGHT))
(get-tile x y)
#f)]) ; not a tile
(cond
[(and clicking (or (not (eq? t clicking))
(not (or (send e button-up?)
(send e dragging?)))))
;; We're already in the middle of a click, and the mouse
;; was moved. Paint the tile to show whether releasing the
;; mouse button selects the tile.
(let ([old clicking])
(set! clicking #f)
(paint-one old clicking-x clicking-y))]
[(and t
(not (eq? (send t get-state) 'uncovered))
(or (send e button-down?)
(and (send e dragging?)
(= x clicking-x)
(= y clicking-y))))
;; Start a click on a covered tile
(clear-area-hilite)
(set! clicking t)
(set! clicking-x x)
(set! clicking-y y)
(when (send e button-down?)
(set! clicking-right? (or (send e button-down? 'right)
(send e get-control-down)
(send e get-alt-down)
(send e get-meta-down))))
(paint-one t x y)]
[(and clicking (send e button-up?))
;; User released the button
(set! clicking #f)
(do-select x y clicking-right?)]
[(and (not (send e leaving?))
t
(eq? (send t get-state) 'uncovered)
(positive? (send t get-neighbor-bomb-count)))
;; Moving over uncovered number
(unless (eq? t area-hilite)
(clear-area-hilite)
(set-near-hilite t x y))]
[(and (not (send e leaving?))
t
(not (eq? (send t get-state) 'uncovered)))
;; Moving over tile
(unless (eq? t area-hilite)
(clear-area-hilite)
(set! area-hilite t)
(set! area-hilites (list (list t x y)))
(send t set-area-hilite 'local)
(paint-one t x y))]
[else (clear-area-hilite)]))))]
[on-paint ; refresh the board
(lambda ()
(for-each-tile (lambda (tile x y) (paint-one tile x y))))])
(super-instantiate (frame)) (super-instantiate (frame))
;; Make canvas size always match the board size: ;; Make canvas size always match the board size:
(min-client-width (* TILE-HW B-WIDTH)) (min-client-width (* TILE-HW B-WIDTH))
(min-client-height (* TILE-HW B-HEIGHT)) (min-client-height (* TILE-HW B-HEIGHT))
(stretchable-width #f) (stretchable-width #f)
(stretchable-height #f) (stretchable-height #f)
(define dc (get-dc)) (define dc (get-dc))
(reset) ; initialize the game (reset) ; initialize the game
(send dc set-font (make-object font% 16 'swiss 'normal 'bold #f 'default #t)) (send dc set-font (make-object font% 16 'swiss 'normal 'bold #f 'default #t))
(send dc set-text-background BG-COLOR) (send dc set-text-background BG-COLOR)
(send dc set-brush (send the-brush-list find-or-create-brush (send dc set-brush (send the-brush-list find-or-create-brush
BG-COLOR 'solid)))) BG-COLOR 'solid))))
;; Make the board canvas: ;; Make the board canvas:
(define board-canvas (make-object board-canvas% frame)) (define board-canvas (make-object board-canvas% frame))
;; Show the frame (and handle events):
(send frame show #t))))
;; Show the frame (and handle events):
(send frame show #t)))

48
collects/games/paint-by-numbers/doc.txt
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@ -1,35 +1,37 @@
** To play _Paint By Numbers_, run the "Games" application. ** ** To play Paint By Numbers, run the "PLT Games" application.
The object of Paint By Numbers is to discover which cells should be The object of Paint By Numbers is to discover which cells should be
colored blue and which should be colored white. Initially, all squares are colored blue and which should be colored white. Initially, all
grey, indicating that the correct colors are not known. The lists of squares are grey, indicating that the correct colors are not known.
numbers to the left and above the grid are your clues to the correct color The lists of numbers to the left and above the grid are your clues to
of each square. Each list of numbers specifies the pattern of blue squares the correct color of each square. Each list of numbers specifies the
in the row beside it or the column below it. Each number indicates the pattern of blue squares in the row beside it or the column below it.
length of a group of blue squares. For example, if the list of numbers Each number indicates the length of a group of blue squares. For
beside the first row is "2 3" then you know that there is a contiguous example, if the list of numbers beside the first row is "2 3" then you
block of two blue squares followed by a contiguous block of three blue know that there is a contiguous block of two blue squares followed by
squares with at least one white square between them. The label does not a contiguous block of three blue squares with at least one white
tell you where the blue squares are, only their shapes. The trick is to square between them. The label does not tell you where the blue
gather as much information as you can about each row, and then use that squares are, only their shapes. The trick is to gather as much
information to determine more about each column. Eventually you should be information as you can about each row, and then use that information
able to fill in the entire puzzle. to determine more about each column. Eventually you should be able to
fill in the entire puzzle.
Click on a square to toggle it between blue and gray. Hold down a modifier Click on a square to toggle it between blue and gray. Hold down a
key (shift, command, meta, or alt depending on the platform) to toggle a modifier key (shift, command, meta, or alt depending on the platform)
square between white and gray. The third button under unix and the right to toggle a square between white and gray. The third button under
button under windows also toggles between white and gray. unix and the right button under windows also toggles between white and
gray.
For some puzzles, hints are available. Choose the Nongram|Show Mistakes For some puzzles, hints are available. Choose the Nongram|Show
menu item to receive the hints. This will turn all incorrectly colored Mistakes menu item to receive the hints. This will turn all
squares red. incorrectly colored squares red.
Thanks to Shoichiro Hattori for his puzzles! Visit him on the web at: Thanks to Shoichiro Hattori for his puzzles! Visit him on the web at:
http://hattori.m78.com/puzzle/ http://hattori.m78.com/puzzle/
Thanks also to many of the contributors to the Kajitani web site for Thanks also to many of the contributors to the Kajitani web site for
permission to re-distribute their puzzles. Visit them online at: permission to re-distribute their puzzles. Visit them online at:
http://www02.so-net.ne.jp/~kajitani/index.html http://www02.so-net.ne.jp/~kajitani/index.html

71
collects/games/parcheesi/doc.txt
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@ -1,52 +1,47 @@
_Parcheesi_ ** To play Parcheesi, run the "PLT Games" application.
Parcheesi is a race game for four players. The goal is for Parcheesi is a race game for four players. The goal is for each
each player to move their pieces from the starting position player to move their pieces from the starting position (the circles in
(the circles in the corners) to the home square (in the the corners) to the home square (in the center of the board), passing
center of the board), passing a nearly complete loop around a nearly complete loop around the board in the counter-clockwise
the board in the counter-clockwise direction and then heads direction and then heads up towards the main row. For example, the
up towards the main row. For example, the green player green player enters from the bottom right, travels around the board on
enters from the bottom right, travels around the board on the light blue squares, passing each of the corners, until it reaches
the light blue squares, passing each of the corners, until the middle of the bottom of the board, where it turns off the light
it reaches the middle of the bottom of the board, where it blue squares and heads into the central region.
turns off the light blue squares and heads into the central
region.
On each turn, the player rolls two dice and advances the On each turn, the player rolls two dice and advances the pawn, based
pawn, based on the die rolls. Typically the players may move on the die rolls. Typically the players may move a pawn for each die.
a pawn for each die. The pawn moves by the number of pips The pawn moves by the number of pips showing on the die and all of the
showing on the die and all of the dice must be used to dice must be used to complete a turn.
complete a turn.
There are some exceptions, however: There are some exceptions, however:
- you must roll a 5 (either directly or via summing) to - you must roll a 5 (either directly or via summing) to enter from
enter from the start area to the main ring. the start area to the main ring.
- if two pieces of the same color occupy a square, no - if two pieces of the same color occupy a square, no pieces may
pieces may pass that square. pass that square.
- if an opponent's piece lands on your piece, you piece is - if an opponent's piece lands on your piece, you piece is returned
returned to the starting area and the opponent receives to the starting area and the opponent receives a bonus of 20
a bonus of 20 (which is treated just as if they had (which is treated just as if they had rolled a 20 on the dice).
rolled a 20 on the dice)
- if your piece makes it home (and it must do so by exact - if your piece makes it home (and it must do so by exact count) you
count) you get a bonus of 10, to be used as an get a bonus of 10, to be used as an additional die roll.
additional die roll.
These rules induce a number of unexpected corner cases, but These rules induce a number of unexpected corner cases, but the GUI
the GUI only lets you make legal moves. Watch the space only lets you make legal moves. Watch the space along the bottom of
along the bottom of the board for reasons why a move is the board for reasons why a move is illegal or why you have not used
illegal or why you have not used all of your die rolls. all of your die rolls.
The automated players are: The automated players are:
- Reckless Renee, who she tries to maximize the chances - Reckless Renee, who she tries to maximize the chances that someone
that someone else bops her. else bops her.
- Polite Polly, who tries to minimize the distance her - Polite Polly, who tries to minimize the distance her pawns move
pawns move ("no, after _you_. I insist."), and ("no, after _you_. I insist."), and
- Amazing Grace, who tries to minimize the chance she gets - Amazing Grace, who tries to minimize the chance she gets bopped
bopped while moving as far as possible. while moving as far as possible.

10
collects/games/pousse/doc.txt
View File

@ -1,4 +1,4 @@
To play _Pousse_, run the "Games" application. ** To play Pousse, run the "PLT Games" application.
Pousse (French for "push", pronounced "poo-ss") is a 2 person game, Pousse (French for "push", pronounced "poo-ss") is a 2 person game,
played on an N by N board (usually 4x4). Initially the board is played on an N by N board (usually 4x4). Initially the board is
@ -32,13 +32,13 @@ Note that the last marker of the row or column will be pushed off the
board (and must be removed from play) if there are no empty squares on board (and must be removed from play) if there are no empty squares on
the insertion row or column. the insertion row or column.
A row or a column is a "straight" of a given color, if it contains A row or a column is a "straight" of a given color, if it contains N
N markers of the given color. markers of the given color.
The game ends either when an insertion The game ends either when an insertion
1) repeats a previous configuration of the board; in this case 1) repeats a previous configuration of the board; in this case the
the player who inserted the marker LOSES. player who inserted the marker LOSES.
2) creates a configuration with more straights of one color than 2) creates a configuration with more straights of one color than
straights of the other color; the player whose color is dominant straights of the other color; the player whose color is dominant

28
collects/games/same/doc.txt
View File

@ -1,18 +1,18 @@
** To play _Same_, run the Games application. ** ** To play Same, run the "PLT Games" application.
The object of Same is to score points by removing dots from the The object of Same is to score points by removing dots from the board.
board. To remove a dot, click on it. As long as there is another dot To remove a dot, click on it. As long as there is another dot of the
of the same color next to the clicked dot, it will disappear along same color next to the clicked dot, it will disappear along with all
with all adjacent dots of the same color. After the dots disappear, adjacent dots of the same color. After the dots disappear, dots in
dots in the rows above the deleted dots will fall into the vacated the rows above the deleted dots will fall into the vacated spaces. If
spaces. If an entire column is wiped out, all of the dots from the an entire column is wiped out, all of the dots from the right will
right will slide left to take up the empty column's space. slide left to take up the empty column's space.
Your score increases for each ball removed from the board. The score Your score increases for each ball removed from the board. The score
for each click is a function of the number of balls that for each click is a function of the number of balls that disappeared.
disappeared. The "This Click" label shows how many points you would The "This Click" label shows how many points you would score for
score for clicking the dots underneath the mouse pointer. The score clicking the dots underneath the mouse pointer. The score varies
varies quadratically with the number of balls, so eliminating many quadratically with the number of balls, so eliminating many balls with
balls with one click is advantageous. one click is advantageous.
Click the New Game button to play again. Click the New Game button to play again.

606
collects/games/slidey/slidey.ss
View File

@ -1,358 +1,318 @@
#lang mzscheme
(require (lib "etc.ss")
(lib "class.ss")
(lib "unit.ss")
(lib "mred.ss" "mred"))
(module slidey mzscheme (provide game@)
(require (lib "etc.ss")
(lib "class.ss")
(lib "unit.ss")
(lib "mred.ss" "mred"))
(provide game@) (define game@ (unit (import) (export)
(define game@ (define (get-bitmap bitmap)
(unit (define f (make-object dialog% "Choose Size" #f #f #f #f #f '(resize-border)))
(import) (define bm-panel (make-object vertical-panel% f))
(export) (define bm-message (make-object message% bitmap bm-panel))
(define size-message
(make-object message% (format "Image size: ~a x ~a pixels"
(send bitmap get-width)
(send bitmap get-height))
bm-panel))
(define wide-panel (make-object vertical-panel% f '(border)))
(define sw (make-object slider% "Tiles (width)" 2 30 wide-panel
(lambda (_1 _2) (update-horizontal-cutoff))))
(define tall-panel (make-object vertical-panel% f '(border)))
(define sh (make-object slider% "Tiles (height)" 2 30 tall-panel
(lambda (_1 _2) (update-vertical-cutoff))))
(define button-panel (make-object horizontal-panel% f))
(define (get-bitmap bitmap) (define cancelled? #t)
(define f (make-object dialog% "Choose Size" #f #f #f #f #f '(resize-border)))
(define bm-panel (make-object vertical-panel% f))
(define bm-message (make-object message% bitmap bm-panel))
(define size-message (make-object message%
(format "Image size: ~a x ~a pixels"
(send bitmap get-width)
(send bitmap get-height))
bm-panel))
(define wide-panel (make-object vertical-panel% f '(border)))
(define sw (make-object slider% "Tiles (width)" 2 30 wide-panel
(lambda (_1 _2)
(update-horizontal-cutoff))))
(define tall-panel (make-object vertical-panel% f '(border)))
(define sh (make-object slider% "Tiles (height)" 2 30 tall-panel
(lambda (_1 _2)
(update-vertical-cutoff))))
(define button-panel (make-object horizontal-panel% f))
(define cancelled? #t) (define cancel (make-object button% "Cancel" button-panel
(lambda (_1 _2) (send f show #f))))
(define ok (make-object button% "OK" button-panel
(lambda (_1 _2)
(set! cancelled? #f)
(send f show #f)) '(border)))
(define cancel (make-object button% "Cancel" button-panel (lambda (_1 _2) (send f show #f)))) (define vertical-cutoff 0)
(define ok (make-object button% "OK" button-panel (lambda (_1 _2) (define vertical-cutoff-message (make-object message% "" tall-panel))
(set! cancelled? #f)
(send f show #f)) '(border)))
(define vertical-cutoff 0) (define horizontal-cutoff 0)
(define vertical-cutoff-message (make-object message% "" tall-panel)) (define horizontal-cutoff-message (make-object message% "" wide-panel))
(define horizontal-cutoff 0) (define (update-vertical-cutoff)
(define horizontal-cutoff-message (make-object message% "" wide-panel)) (set! vertical-cutoff (modulo (send bitmap get-height) (send sh get-value)))
(send vertical-cutoff-message set-label
(if (= 0 vertical-cutoff)
""
(format "Vertical cutoff ~a pixels" vertical-cutoff))))
(define (update-horizontal-cutoff)
(set! horizontal-cutoff (modulo (send bitmap get-width) (send sw get-value)))
(send horizontal-cutoff-message set-label
(if (= 0 horizontal-cutoff)
""
(format "Horizontal cutoff ~a pixels" horizontal-cutoff))))
(define (update-vertical-cutoff) (send horizontal-cutoff-message stretchable-width #t)
(set! vertical-cutoff (modulo (send bitmap get-height) (send sh get-value))) (send vertical-cutoff-message stretchable-width #t)
(send vertical-cutoff-message set-label (update-vertical-cutoff)
(if (= 0 vertical-cutoff) (update-horizontal-cutoff)
"" (send button-panel set-alignment 'right 'center)
(format "Vertical cutoff ~a pixels" vertical-cutoff)))) (send button-panel stretchable-height #f)
(define (update-horizontal-cutoff) (send bm-panel set-alignment 'center 'center)
(set! horizontal-cutoff (modulo (send bitmap get-width) (send sw get-value))) (send wide-panel stretchable-height #f)
(send horizontal-cutoff-message set-label (send tall-panel stretchable-height #f)
(if (= 0 horizontal-cutoff) (make-object grow-box-spacer-pane% button-panel)
"" (send f show #t)
(format "Horizontal cutoff ~a pixels" horizontal-cutoff))))
(send horizontal-cutoff-message stretchable-width #t) (if cancelled?
(send vertical-cutoff-message stretchable-width #t) (values #f #f #f)
(update-vertical-cutoff) (let* ([nb (make-object bitmap%
(update-horizontal-cutoff) (- (send bitmap get-width) horizontal-cutoff)
(send button-panel set-alignment 'right 'center) (- (send bitmap get-height) vertical-cutoff))]
(send button-panel stretchable-height #f) [bdc (make-object bitmap-dc% nb)])
(send bm-panel set-alignment 'center 'center) (send bdc draw-bitmap-section bitmap 0 0 0 0
(send wide-panel stretchable-height #f) (- (send bitmap get-width) horizontal-cutoff)
(send tall-panel stretchable-height #f) (- (send bitmap get-height) vertical-cutoff))
(make-object grow-box-spacer-pane% button-panel) (send bdc set-bitmap #f)
(send f show #t) (values nb (send sw get-value) (send sh get-value)))))
(if cancelled? (define-struct loc (x y))
(values #f #f #f) ;; board = (vector-of (vector-of (union #f (make-loc n1 n2))))
(let* ([nb (make-object bitmap%
(- (send bitmap get-width) horizontal-cutoff)
(- (send bitmap get-height) vertical-cutoff))]
[bdc (make-object bitmap-dc% nb)])
(send bdc draw-bitmap-section bitmap 0 0 0 0
(- (send bitmap get-width) horizontal-cutoff)
(- (send bitmap get-height) vertical-cutoff))
(send bdc set-bitmap #f)
(values nb (send sw get-value) (send sh get-value)))))
(define-struct loc (x y)) ;; need to make sure that the bitmap divides nicely
;; board = (vector-of (vector-of (union #f (make-loc n1 n2)))) ;;(define bitmap (make-object bitmap% (build-path (collection-path "games" "slidey") "11.jpg")))
;;(define board-width 6)
;;(define board-height 5)
;; need to make sure that the bitmap divides nicely (define (board-for-each board f)
;(define bitmap (make-object bitmap% (build-path (collection-path "games" "slidey") "11.jpg"))) (let loop ([i (vector-length board)])
;(define board-width 6) (unless (zero? i)
;(define board-height 5) (let ([row (vector-ref board (- i 1))])
(let loop ([j (vector-length row)])
(unless (zero? j)
(f (- i 1) (- j 1) (vector-ref row (- j 1)))
(loop (- j 1)))))
(loop (- i 1)))))
(define (board-for-each board f) (define (move-one board from-i from-j to-i to-j)
(let loop ([i (vector-length board)]) (let ([from-save (board-ref board from-i from-j)]
(cond [to-save (board-ref board to-i to-j)])
[(zero? i) (void)] (board-set! board from-i from-j to-save)
[else (board-set! board to-i to-j from-save)))
(let ([row (vector-ref board (- i 1))])
(let loop ([j (vector-length row)])
(cond
[(zero? j) (void)]
[else
(f (- i 1) (- j 1) (vector-ref row (- j 1)))
(loop (- j 1))])))
(loop (- i 1))])))
(define (move-one board from-i from-j to-i to-j) (define (board-set! board i j v)
(let ([from-save (board-ref board from-i from-j)] (vector-set! (vector-ref board i) j v))
[to-save (board-ref board to-i to-j)]) (define (board-ref board i j)
(board-set! board from-i from-j to-save) (vector-ref (vector-ref board i) j))
(board-set! board to-i to-j from-save)))
(define (board-set! board i j v) (define (get-board-width board)
(vector-set! (vector-ref board i) j v)) (vector-length board))
(define (board-ref board i j) (define (get-board-height board)
(vector-ref (vector-ref board i) j)) (vector-length (vector-ref board 0)))
(define (get-board-width board) (define (randomize-board board hole-i hole-j)
(vector-length board)) (let ([board-width (get-board-width board)]
(define (get-board-height board) [board-height (get-board-height board)])
(vector-length (vector-ref board 0))) (let loop ([no-good #f]
[i (* 10 board-width board-height)]
[m-hole-i hole-i]
[m-hole-j hole-j])
(cond
[(zero? i) ;; move hole back to last spot
(let ([i-diff (abs (- m-hole-i hole-i))])
(let loop ([i 0])
(unless (= i i-diff)
(move-one board (+ m-hole-i i)
m-hole-j (+ m-hole-i i (if (< m-hole-i hole-i) +1 -1))
m-hole-j)
(loop (+ i 1)))))
(let ([j-diff (abs (- m-hole-j hole-j))])
(let loop ([j 0])
(unless (= j j-diff)
(move-one board hole-i (+ m-hole-j j)
hole-i (+ m-hole-j j (if (< m-hole-j hole-j) +1 -1)))
(loop (+ j 1)))))]
[else
(let ([this-dir (get-random-number 4 no-good)])
(let-values ([(new-i new-j)
(case this-dir
;; up
[(0) (values (- m-hole-i 1) m-hole-j)]
[(1) (values (+ m-hole-i 1) m-hole-j)]
[(2) (values m-hole-i (- m-hole-j 1))]
[(3) (values m-hole-i (+ m-hole-j 1))])])
(if (and (<= 0 new-i)
(< new-i board-width)
(<= 0 new-j)
(< new-j board-height))
(let ([next-no-good
(case this-dir [(0) 1] [(1) 0] [(2) 3] [(3) 2])])
(move-one board new-i new-j m-hole-i m-hole-j)
(loop next-no-good (- i 1) new-i new-j))
(loop no-good (- i 1) m-hole-i m-hole-j))))]))))
(define (randomize-board board hole-i hole-j) (define (get-random-number bound no-good)
(let ([board-width (get-board-width board)] (let ([raw (random (- bound 1))])
[board-height (get-board-height board)]) (cond [(not no-good) raw]
(let loop ([no-good #f] [(< raw no-good) raw]
[i (* 10 board-width board-height)] [else (+ raw 1)])))
[m-hole-i hole-i]
[m-hole-j hole-j])
(cond
[(zero? i) ;; move hole back to last spot
(let ([i-diff (abs (- m-hole-i hole-i))])
(let loop ([i 0])
(unless (= i i-diff)
(move-one
board
(+ m-hole-i i)
m-hole-j
(+ m-hole-i i (if (< m-hole-i hole-i) +1 -1))
m-hole-j)
(loop (+ i 1)))))
(let ([j-diff (abs (- m-hole-j hole-j))])
(let loop ([j 0])
(unless (= j j-diff)
(move-one
board
hole-i
(+ m-hole-j j)
hole-i
(+ m-hole-j j (if (< m-hole-j hole-j) +1 -1)))
(loop (+ j 1)))))]
[else
(let ([this-dir (get-random-number 4 no-good)])
(let-values ([(new-i new-j)
(case this-dir
; up
[(0) (values (- m-hole-i 1) m-hole-j)]
[(1) (values (+ m-hole-i 1) m-hole-j)]
[(2) (values m-hole-i (- m-hole-j 1))]
[(3) (values m-hole-i (+ m-hole-j 1))])])
(if (and (<= 0 new-i)
(< new-i board-width)
(<= 0 new-j)
(< new-j board-height))
(let ([next-no-good
(case this-dir
[(0) 1]
[(1) 0]
[(2) 3]
[(3) 2])])
(move-one board new-i new-j m-hole-i m-hole-j)
(loop next-no-good (- i 1) new-i new-j))
(loop no-good (- i 1) m-hole-i m-hole-j))))]))))
(define (get-random-number bound no-good) (define line-brush
(let ([raw (random (- bound 1))]) (send the-brush-list find-or-create-brush "black" 'transparent))
(cond (define line-pen (send the-pen-list find-or-create-pen "white" 1 'solid))
[(not no-good) raw] (define mistake-brush
[(< raw no-good) raw] (send the-brush-list find-or-create-brush "black" 'transparent))
[else (+ raw 1)]))) (define mistake-pen (send the-pen-list find-or-create-pen "red" 1 'solid))
(define pict-brush (send the-brush-list find-or-create-brush "black" 'solid))
(define pict-pen (send the-pen-list find-or-create-pen "black" 1 'solid))
(define white-brush (send the-brush-list find-or-create-brush "white" 'solid))
(define white-pen (send the-pen-list find-or-create-pen "white" 1 'solid))
(define line-brush (send the-brush-list find-or-create-brush "black" 'transparent)) (define slidey-canvas%
(define line-pen (send the-pen-list find-or-create-pen "white" 1 'solid)) (class canvas%
(define mistake-brush (send the-brush-list find-or-create-brush "black" 'transparent)) (init-field bitmap board-width board-height)
(define mistake-pen (send the-pen-list find-or-create-pen "red" 1 'solid))
(define pict-brush (send the-brush-list find-or-create-brush "black" 'solid))
(define pict-pen (send the-pen-list find-or-create-pen "black" 1 'solid))
(define white-brush (send the-brush-list find-or-create-brush "white" 'solid))
(define white-pen (send the-pen-list find-or-create-pen "white" 1 'solid))
(define slidey-canvas% (define show-mistakes? #f)
(class canvas% (define/public (show-mistakes nv)
(init-field bitmap board-width board-height) (set! show-mistakes? nv)
(unless solved? (on-paint)))
(define show-mistakes? #f) (define solved? #f)
(define/public (show-mistakes nv)
(set! show-mistakes? nv)
(unless solved?
(on-paint)))
(define solved? #f) (define board
(build-vector
board-width
(lambda (i) (build-vector board-height (lambda (j) (make-loc i j))))))
(define hole-i (- board-width 1))
(define hole-j (- board-height 1))
(board-set! board hole-i hole-j #f)
(define board (define/override (on-paint)
(build-vector (if solved?
board-width (send (get-dc) draw-bitmap bitmap 0 0)
(lambda (i) (board-for-each board (lambda (i j v) (draw-cell i j)))))
(build-vector
board-height
(lambda (j)
(make-loc i j))))))
(define hole-i (- board-width 1))
(define hole-j (- board-height 1))
(board-set! board hole-i hole-j #f)
(define/override (on-paint) (define/override (on-event evt)
(if solved? (unless solved?
(send (get-dc) draw-bitmap bitmap 0 0) (when (send evt button-down? 'left)
(board-for-each (let-values ([(i j) (xy->ij (send evt get-x) (send evt get-y))])
board (slide i j)))))
(lambda (i j v) (inherit get-client-size get-dc)
(draw-cell i j)))))
(define/override (on-event evt) (define/private (check-end-condition)
(unless solved? (let ([answer #t])
(cond (board-for-each
[(send evt button-down? 'left) board
(let-values ([(i j) (xy->ij (send evt get-x) (send evt get-y))]) (lambda (i j v)
(slide i j))] (when v
[else (void)]))) (unless (and (= i (loc-x v)) (= j (loc-y v)))
(inherit get-client-size get-dc) (set! answer #f)))))
(when answer (set! solved? #t))))
(define/private (check-end-condition) (define/private (slide i j)
(let ([answer #t]) (cond
(board-for-each [(= j hole-j)
board (let loop ([new-hole-i hole-i])
(lambda (i j v) (unless (= new-hole-i i)
(when v (let ([next (if (< i hole-i) sub1 add1)])
(unless (and (= i (loc-x v)) (move-one board (next new-hole-i) hole-j new-hole-i hole-j)
(= j (loc-y v))) (draw-cell new-hole-i hole-j)
(set! answer #f))))) (draw-cell (next new-hole-i) hole-j)
(when answer (loop (next new-hole-i)))))
(set! solved? #t)))) (set! hole-i i)
(check-end-condition)
(when solved? (on-paint))]
[(= i hole-i)
(let loop ([new-hole-j hole-j])
(unless (= new-hole-j j)
(let ([next (if (< j hole-j)
sub1
add1)])
(move-one board hole-i (next new-hole-j) hole-i new-hole-j)
(draw-cell hole-i new-hole-j)
(draw-cell hole-i (next new-hole-j))
(loop (next new-hole-j)))))
(set! hole-j j)
(check-end-condition)
(when solved?
(on-paint))]
[else (void)]))
(define/private (slide i j) (define/private (xy->ij x y)
(cond (let-values ([(w h) (get-client-size)])
[(= j hole-j) (values (inexact->exact (floor (* board-width (/ x w))))
(let loop ([new-hole-i hole-i]) (inexact->exact (floor (* board-height (/ y h)))))))
(cond
[(= new-hole-i i) (void)]
[else
(let ([next (if (< i hole-i)
sub1
add1)])
(move-one board (next new-hole-i) hole-j new-hole-i hole-j)
(draw-cell new-hole-i hole-j)
(draw-cell (next new-hole-i) hole-j)
(loop (next new-hole-i)))]))
(set! hole-i i)
(check-end-condition)
(when solved?
(on-paint))]
[(= i hole-i)
(let loop ([new-hole-j hole-j])
(cond
[(= new-hole-j j) (void)]
[else
(let ([next (if (< j hole-j)
sub1
add1)])
(move-one board hole-i (next new-hole-j) hole-i new-hole-j)
(draw-cell hole-i new-hole-j)
(draw-cell hole-i (next new-hole-j))
(loop (next new-hole-j)))]))
(set! hole-j j)
(check-end-condition)
(when solved?
(on-paint))]
[else (void)]))
(define/private (xy->ij x y) (define/private (ij->xywh i j)
(let-values ([(w h) (get-client-size)]) (let-values ([(w h) (get-client-size)])
(values (let ([cell-w (/ w board-width)]
(inexact->exact (floor (* board-width (/ x w)))) [cell-h (/ h board-height)])
(inexact->exact (floor (* board-height (/ y h))))))) (values (* i cell-w) (* j cell-h) cell-w cell-h))))
(define/private (draw-cell draw-i draw-j)
(let-values ([(xd yd wd hd) (ij->xywh draw-i draw-j)])
(let* ([dc (get-dc)]
[indicies (board-ref board draw-i draw-j)])
(if indicies
(let ([bm-i (loc-x indicies)]
[bm-j (loc-y indicies)])
(let-values ([(xs ys ws hs) (ij->xywh bm-i bm-j)])
(send dc set-pen pict-pen)
(send dc set-brush pict-brush)
(send dc draw-bitmap-section bitmap xd yd xs ys wd hd)
(if (and show-mistakes?
(or (not (= draw-i bm-i))
(not (= draw-j bm-j))))
(begin (send dc set-pen mistake-pen)
(send dc set-brush mistake-brush))
(begin (send dc set-pen line-pen)
(send dc set-brush line-brush)))
(send dc draw-rectangle xd yd wd hd)))
(begin (send dc set-pen white-pen)
(send dc set-brush white-brush)
(send dc draw-rectangle xd yd wd hd))))))
(define/private (ij->xywh i j) (inherit stretchable-width stretchable-height
(let-values ([(w h) (get-client-size)]) min-client-width min-client-height)
(let ([cell-w (/ w board-width)] (super-instantiate ())
[cell-h (/ h board-height)]) (randomize-board board hole-i hole-j)
(values (* i cell-w) (stretchable-width #f)
(* j cell-h) (stretchable-height #f)
cell-w (min-client-width (send bitmap get-width))
cell-h)))) (min-client-height (send bitmap get-height))))
(define/private (draw-cell draw-i draw-j)
(let-values ([(xd yd wd hd) (ij->xywh draw-i draw-j)])
(let* ([dc (get-dc)]
[indicies (board-ref board draw-i draw-j)])
(if indicies
(let ([bm-i (loc-x indicies)]
[bm-j (loc-y indicies)])
(let-values ([(xs ys ws hs) (ij->xywh bm-i bm-j)])
(send dc set-pen pict-pen)
(send dc set-brush pict-brush)
(send dc draw-bitmap-section bitmap xd yd xs ys wd hd)
(if (and show-mistakes?
(or (not (= draw-i bm-i))
(not (= draw-j bm-j))))
(begin
(send dc set-pen mistake-pen)
(send dc set-brush mistake-brush))
(begin
(send dc set-pen line-pen)
(send dc set-brush line-brush)))
(send dc draw-rectangle xd yd wd hd)))
(begin
(send dc set-pen white-pen)
(send dc set-brush white-brush)
(send dc draw-rectangle xd yd wd hd))))))
(inherit stretchable-width stretchable-height min-client-width min-client-height) (define f (make-object frame% "Slidey"))
(super-instantiate ()) (define p (make-object horizontal-panel% f))
(randomize-board board hole-i hole-j) (send p set-alignment 'center 'center)
(stretchable-width #f) (define slidey-canvas
(stretchable-height #f) (make-object slidey-canvas%
(min-client-width (send bitmap get-width)) (make-object bitmap%
(min-client-height (send bitmap get-height)))) (build-path (collection-path "games" "slidey") "11.jpg"))
6 6 p))
(define bp (make-object horizontal-panel% f))
(send bp stretchable-height #f)
(define show-mistakes
(make-object check-box% "Show misplaced pieces" bp
(lambda ___ (send slidey-canvas show-mistakes (send show-mistakes get-value)))))
(make-object grow-box-spacer-pane% bp)
(define f (make-object frame% "Slidey")) (define (change-bitmap)
(define p (make-object horizontal-panel% f)) (let ([fn (get-file)])
(send p set-alignment 'center 'center) (when fn
(define slidey-canvas (make-object slidey-canvas% (let ([bm (make-object bitmap% fn)])
(make-object bitmap% (cond
(build-path (collection-path "games" "slidey") "11.jpg")) [(send bm ok?)
6 6 p)) (let-values ([(bitmap w h) (get-bitmap bm)])
(define bp (make-object horizontal-panel% f)) (when bitmap
(send bp stretchable-height #f) (send p change-children (lambda (l) null))
(define show-mistakes (set! slidey-canvas (make-object slidey-canvas% bitmap w h p))))]
(make-object check-box% "Show misplaced pieces" bp
(lambda ___ (send slidey-canvas show-mistakes (send show-mistakes get-value)))))
(make-object grow-box-spacer-pane% bp)
(define (change-bitmap)
(let ([fn (get-file)])
(when fn
(let ([bm (make-object bitmap% fn)])
(cond
[(send bm ok?)
(let-values ([(bitmap w h) (get-bitmap bm)])
(when bitmap
(send p change-children (lambda (l) null))
(set! slidey-canvas (make-object slidey-canvas% bitmap w h p))))]
[else (message-box "Slidey" (format "Unrecognized image format: ~a" fn))]))))) [else (message-box "Slidey" (format "Unrecognized image format: ~a" fn))])))))
(define mb (make-object menu-bar% f)) (define mb (make-object menu-bar% f))
(define file-menu (make-object menu% "File" mb)) (define file-menu (make-object menu% "File" mb))
(make-object menu-item% "Open Image" file-menu (lambda (_1 _2) (change-bitmap)) #\o) (make-object menu-item% "Open Image" file-menu (lambda (_1 _2) (change-bitmap)) #\o)
(make-object menu-item% "Close Window" file-menu (lambda (_1 _2) (send f show #f)) #\w) (make-object menu-item% "Close Window" file-menu (lambda (_1 _2) (send f show #f)) #\w)
(send f show #t)))) (send f show #t)
))

20
collects/games/spider/doc.txt
View File

@ -1,30 +1,30 @@
** To play _Spider_, run the "Games" application. ** ** To play Spider, run the "PLT Games" application.
Spider is a solitaire card game played with 104 cards. The cards can Spider is a solitaire card game played with 104 cards. The cards can
include either a single suit, two suits, or four suites. (Choose your include either a single suit, two suits, or four suites. (Choose your
variant through the "Options" item in the "Edit" menu.) variant through the "Options" item in the "Edit" menu.)
Terminology: Terminology:
* Tableau: one of the ten stacks of cards in the play area. The game * Tableau: one of the ten stacks of cards in the play area. The game
starts with six cards in the first four tableaus, and five cards in starts with six cards in the first four tableaus, and five cards in
the rest; only the topmost card is face up, and others are revealed the rest; only the topmost card is face up, and others are revealed
when they become the topmost card of the tableau. when they become the topmost card of the tableau.
* Sequence: a group of cards on the top of a tableau that are in the * Sequence: a group of cards on the top of a tableau that are in the
same suit, and that are in sequence, with the lowest numbered card same suit, and that are in sequence, with the lowest numbered card
topmost (i.e., closer to the bottom of the screen). King is high topmost (i.e., closer to the bottom of the screen). King is high
and ace is low. and ace is low.
The object of the game is to create a sequence with ace through king, The object of the game is to create a sequence with ace through king,
at which point the sequence is removed from play. Create eight such at which point the sequence is removed from play. Create eight such
sequences to win the game. sequences to win the game.
On each move, you can either: On each move, you can either:
* Move a sequence from any tableau to one whose topmost card (i.e., * Move a sequence from any tableau to one whose topmost card (i.e.,
closest to the bottom of the screen) has a value that's one more closest to the bottom of the screen) has a value that's one more
than the sequence's value. Note that if the top card of the target than the sequence's value. Note that if the top card of the target
tableau has the same suit as the sequence, a larger sequence is tableau has the same suit as the sequence, a larger sequence is
formed, but the target tableau's card is not required to have the formed, but the target tableau's card is not required to have the
same suit. same suit.
@ -32,12 +32,12 @@ On each move, you can either:
* Move a sequence to an empty tableau. * Move a sequence to an empty tableau.
* Deal ten cards from the deck (in the upper left corder), one to * Deal ten cards from the deck (in the upper left corder), one to
each tableau. This move is allowed only if no tableau is empty. each tableau. This move is allowed only if no tableau is empty.
To move a sequence, either drag it to the target tableau, or click the To move a sequence, either drag it to the target tableau, or click the
sequence and then click the top card of the target tableau (or the sequence and then click the top card of the target tableau (or the
place where a single card would be for an empty tableau). Click a place where a single card would be for an empty tableau). Click a
select card to de-select it. Clicking a card that is not a valid select card to de-select it. Clicking a card that is not a valid
target for the currently selected sequence causes the clicked card's target for the currently selected sequence causes the clicked card's
sequence to be selected (if the card is face up in a sequence). sequence to be selected (if the card is face up in a sequence).

757
collects/games/spider/spider.ss
View File

@ -1,445 +1,412 @@
#lang mzscheme
(module spider mzscheme (require (lib "cards.ss" "games" "cards")
(lib "class.ss")
(lib "mred.ss" "mred")
(lib "list.ss")
(lib "file.ss")
(lib "unit.ss")
"../show-help.ss")
(require (lib "cards.ss" "games" "cards") (define (list-first-n l n)
(lib "class.ss") (if (zero? n)
(lib "mred.ss" "mred") null
(lib "list.ss") (cons (car l) (list-first-n (cdr l) (sub1 n)))))
(lib "file.ss") (define (vector-copy v)
(lib "unit.ss") (list->vector (vector->list v)))
"../show-help.ss")
(define (list-first-n l n) (provide game@)
(if (zero? n) (define game@ (unit (import) (export)
null
(cons (car l) (list-first-n (cdr l) (sub1 n)))))
(define (vector-copy v)
(list->vector (vector->list v)))
(provide game@) (define t (make-table "Spider" 11 6))
(define game@ (define num-suits (get-preference 'spider:num-suits (lambda () 2)))
(unit
(import)
(export)
(define t (make-table "Spider" 11 6)) (define (make-spider-deck)
(let-values ([(suits copies)
(case num-suits
[(1) (values '(spades) 4)]
[(2) (values '(spades hearts) 2)]
[(4) (values '(spades hearts clubs diamonds) 1)])])
(let ([l (filter (lambda (c) (memq (send c get-suit) suits)) (make-deck))])
(let loop ([n (* 2 copies)])
(if (zero? n)
null
(append (map (lambda (c) (send c copy)) l) (loop (sub1 n))))))))
(define num-suits (get-preference 'spider:num-suits (lambda () 2))) (define deck (make-spider-deck))
(define (make-spider-deck) (define draw-pile deck)
(let-values ([(suits copies)
(case num-suits
[(1) (values '(spades) 4)]
[(2) (values '(spades hearts) 2)]
[(4) (values '(spades hearts clubs diamonds) 1)])])
(let ([l (filter (lambda (c)
(memq (send c get-suit) suits))
(make-deck))])
(let loop ([n (* 2 copies)])
(if (zero? n)
null
(append (map (lambda (c) (send c copy)) l)
(loop (sub1 n))))))))
(define deck (make-spider-deck)) (define CARD-WIDTH (send (car deck) card-width))
(define CARD-HEIGHT (send (car deck) card-height))
(define draw-pile deck) (define dx (quotient CARD-WIDTH 11))
(define dy dx)
(define CARD-WIDTH (send (car deck) card-width)) (define stacks (make-vector 10 null))
(define CARD-HEIGHT (send (car deck) card-height)) (define dones (make-vector 8 null))
(define dx (quotient CARD-WIDTH 11)) (define done-count 0)
(define dy dx)
(define stacks (make-vector 10 null)) (define old-states null)
(define dones (make-vector 8 null))
(define done-count 0) (define-struct state (draw-pile stacks dones done-count face-down?s))
(define old-states null) (define mb (make-object menu-bar% t))
(define-struct state (draw-pile stacks dones done-count face-down?s)) (define file-menu (make-object menu% "&File" mb))
(define mb (make-object menu-bar% t)) (new menu-item%
[label "&Reset Game..."]
[parent file-menu]
[callback
(lambda (i e)
(when (eq? 'yes (message-box "Reset Game"
"Are you sure you want to reset the game?"
t
'(yes-no)))
(reset-game!)))])
(define file-menu (make-object menu% "&File" mb)) (new separator-menu-item% [parent file-menu])
(new menu-item% (new menu-item%
[label "&Reset Game..."] [label "&Close"]
[parent file-menu] [parent file-menu]
[callback (lambda (i e) [shortcut #\W]
(when (eq? 'yes (message-box "Reset Game" [callback (lambda (i e) (send t show #f))])
"Are you sure you want to reset the game?"
t
'(yes-no)))
(reset-game!)))])
(new separator-menu-item% [parent file-menu]) (define edit-menu (make-object menu% "&Edit" mb))
(new menu-item% (define undo
[label "&Close"] (new menu-item%
[parent file-menu] [label "&Undo"]
[shortcut #\W] [parent edit-menu]
[callback (lambda (i e) (send t show #f))]) [shortcut #\Z]
[callback (lambda (i e) (pop-state!))]))
(define edit-menu (make-object menu% "&Edit" mb)) (new separator-menu-item% [parent edit-menu])
(define undo (new menu-item%
(new menu-item% [label "&Options..."]
[label "&Undo"] [parent edit-menu]
[parent edit-menu] [callback (lambda (i e)
[shortcut #\Z] (define d
[callback (lambda (i e) (new dialog%
(pop-state!))])) [label "Spider Options"]
[parent t]
(new separator-menu-item% [parent edit-menu]) [stretchable-width #f]
[stretchable-height #f]))
(new menu-item% (define suits
[label "&Options..."] (new radio-box%
[parent edit-menu] [label #f]
[callback (lambda (i e) [parent (new group-box-panel%
(define d (new dialog% [parent d]
[label "Spider Options"] [label "Number of Suits"]
[parent t] [stretchable-width #f]
[stretchable-width #f] [stretchable-height #f])]
[stretchable-height #f])) [choices '("1 (easiest)" "2" "4 (hardest)")]))
(define suits (new radio-box% (define bottom-panel
[label #f] (new horizontal-panel%
[parent (new group-box-panel% [parent d]
[parent d] [alignment '(right center)]
[label "Number of Suits"] [stretchable-height #f]))
[stretchable-width #f] (new button%
[stretchable-height #f])] [parent bottom-panel]
[choices '("1 (easiest)" "2" "4 (hardest)")])) [label "&Cancel"]
(define bottom-panel (new horizontal-panel% [callback (lambda (b e) (send d show #f))])
[parent d] (new button%
[alignment '(right center)] [parent bottom-panel]
[stretchable-height #f])) [label "&Ok"]
(new button% [style '(border)]
[parent bottom-panel] [callback (lambda (b e)
[label "&Cancel"] (let ([n (expt 2 (send suits get-selection))])
[callback (lambda (b e) (send d show #f))]) (if (not (= n num-suits))
(new button% (when (eq? 'yes
[parent bottom-panel] (message-box "Warning"
[label "&Ok"] "Reset the game for new suit count?"
[style '(border)] d
[callback (lambda (b e) '(yes-no)))
(let ([n (expt 2 (send suits get-selection))]) (set! num-suits n)
(if (not (= n num-suits)) (put-preferences '(spider:num-suits) (list n))
(when (eq? 'yes (send d show #f)
(message-box "Warning" (reset-game!))
"Reset the game for new suit count?" (send d show #f))))])
d (send suits set-selection (case num-suits [(1) 0][(2) 1][(4) 2]))
'(yes-no))) (send d center)
(set! num-suits n) (send d show #t))])
(put-preferences '(spider:num-suits) (list n))
(send d show #f)
(reset-game!))
(send d show #f))))])
(send suits set-selection (case num-suits [(1) 0][(2) 1][(4) 2]))
(send d center)
(send d show #t))])
(define help (show-help '("games" "spider") "Spider Rules" #f)) (define help (show-help '("games" "spider") "Spider Rules" #f))
(new menu-item% (new menu-item%
[label "&Rules"] [label "&Rules"]
[parent (make-object menu% "&Help" mb)] [parent (make-object menu% "&Help" mb)]
[callback (lambda (i e) [callback (lambda (i e) (help))])
(help))])
(define (push-state!) (define (push-state!)
(when (null? old-states) (when (null? old-states)
(send undo enable #t)) (send undo enable #t))
(set! old-states (cons (make-state (set! old-states
draw-pile (cons (make-state draw-pile
(vector-copy stacks) (vector-copy stacks)
(vector-copy dones) (vector-copy dones)
done-count done-count
(map (lambda (c) (send c face-down?)) deck)) (map (lambda (c) (send c face-down?)) deck))
old-states))) old-states)))
(define (pop-state!) (define (pop-state!)
(let ([state (car old-states)]) (let ([state (car old-states)])
(send t begin-card-sequence) (send t begin-card-sequence)
(set! old-states (cdr old-states)) (set! old-states (cdr old-states))
(set! draw-pile (state-draw-pile state)) (set! draw-pile (state-draw-pile state))
(set! stacks (state-stacks state)) (set! stacks (state-stacks state))
(set! dones (state-dones state)) (set! dones (state-dones state))
(set! done-count (state-done-count state)) (set! done-count (state-done-count state))
(for-each (lambda (c fd?) (for-each (lambda (c fd?)
(send c user-can-move #f) (send c user-can-move #f)
(unless (eq? (send c face-down?) fd?) (unless (eq? (send c face-down?) fd?) (send c flip)))
(send c flip))) deck (state-face-down?s state))
deck (state-face-down?s state)) (send t move-cards draw-pile dx dy)
(send t move-cards draw-pile dx dy) (send t stack-cards draw-pile)
(send t stack-cards draw-pile) (let loop ([i 0])
(let loop ([i 0]) (unless (= i (vector-length stacks))
(unless (= i (vector-length stacks)) (send t stack-cards (vector-ref stacks i))
(send t stack-cards (vector-ref stacks i)) (loop (add1 i))))
(loop (add1 i)))) (let loop ([i 0])
(let loop ([i 0]) (unless (= i (vector-length dones)) (move-dones i) (loop (add1 i))))
(unless (= i (vector-length dones)) (shift-stacks)
(move-dones i) (when (null? old-states) (send undo enable #f))
(loop (add1 i)))) (send t end-card-sequence)))
(shift-stacks)
(when (null? old-states)
(send undo enable #f))
(send t end-card-sequence)))
(define (find-stack find) (define (find-stack find)
(let loop ([i 0]) (let loop ([i 0])
(if (= i (vector-length stacks)) (if (= i (vector-length stacks))
#f #f
(let ([l (vector-ref stacks i)]) (let ([l (vector-ref stacks i)])
(if (and (pair? l) (if (and (pair? l) (memq find l))
(memq find l)) i
i (loop (add1 i)))))))
(loop (add1 i)))))))
(define (remove-from-stack! cards) (define (remove-from-stack! cards)
(let* ([i (find-stack (car cards))] (let* ([i (find-stack (car cards))]
[l (vector-ref stacks i)]) [l (vector-ref stacks i)])
(vector-set! stacks i (list-tail l (length cards))))) (vector-set! stacks i (list-tail l (length cards)))))
(define (stacked-cards card) (define (stacked-cards card)
(let ([i (find-stack card)]) (let ([i (find-stack card)])
(if i (if i
(reverse (reverse (let loop ([l (vector-ref stacks i)])
(let loop ([l (vector-ref stacks i)]) (cond [(not (send (car l) user-can-move)) null]
(cond [(eq? (car l) card) (list card)]
[(not (send (car l) user-can-move)) null] [else (cons (car l) (loop (cdr l)))])))
[(eq? (car l) card) (list card)] #f)))
[else (cons (car l) (loop (cdr l)))])))
#f)))
(define (drag-ok? cards i) (define (drag-ok? cards i)
(let ([c (car cards)] (let ([c (car cards)]
[l (vector-ref stacks i)]) [l (vector-ref stacks i)])
(and l (and l
(or (null? l) (or (null? l)
(= (send (car l) get-value) (= (send (car l) get-value)
(add1 (send c get-value))))))) (add1 (send c get-value)))))))
(let loop ([i 0]) (let loop ([i 0])
(unless (= i (vector-length stacks)) (unless (= i (vector-length stacks))
null null
(let ([r (make-region (+ dx (* i (+ CARD-WIDTH dx))) (let ([r (make-region (+ dx (* i (+ CARD-WIDTH dx)))
(+ dy CARD-HEIGHT dy) (+ dy CARD-HEIGHT dy)
CARD-WIDTH CARD-WIDTH
(- (* CARD-HEIGHT 5) dy dy) (- (* CARD-HEIGHT 5) dy dy)
#f #f
(lambda (cards) (lambda (cards)
(when (drag-ok? cards i) (when (drag-ok? cards i)
(move-to-stack cards i))))]) (move-to-stack cards i))))])
(set-region-interactive-callback! (set-region-interactive-callback!
r r
(lambda (on? cards) (lambda (on? cards)
(let ([ok? (and on? (drag-ok? cards i))]) (let ([ok? (and on? (drag-ok? cards i))])
(for-each (lambda (c) (for-each (lambda (c) (send c snap-back-after-move (not ok?)))
(send c snap-back-after-move (not ok?))) cards)
cards) (let ([l (vector-ref stacks i)])
(let ([l (vector-ref stacks i)]) (unless (null? l) (send (car l) dim ok?))))))
(unless (null? l) (send t add-region r)
(send (car l) dim ok?)))))) (loop (add1 i)))))
(send t add-region r)
(loop (add1 i)))))
(define (move-to-stack cards i) (define (move-to-stack cards i)
(unselect) (unselect)
(let ([l (vector-ref stacks i)]) (let ([l (vector-ref stacks i)])
(unless (null? l) (unless (null? l) (send (car l) dim #f)))
(send (car l) dim #f))) (push-state!)
(push-state!) (remove-from-stack! cards)
(remove-from-stack! cards) (vector-set! stacks i (append (reverse cards) (vector-ref stacks i)))
(vector-set! stacks i (for-each (lambda (c) (send c snap-back-after-move #t)) cards)
(append (reverse cards) (shift-stacks))
(vector-ref stacks i)))
(for-each (lambda (c)
(send c snap-back-after-move #t))
cards)
(shift-stacks))
(define selected null) (define selected null)
(define (select cards) (define (select cards)
(unselect) (unselect)
(set! selected cards) (set! selected cards)
(for-each (lambda (c) (send c dim #t)) (for-each (lambda (c) (send c dim #t)) selected))
selected))
(define (unselect) (define (unselect)
(for-each (lambda (c) (send c dim #f)) (for-each (lambda (c) (send c dim #f)) selected)
selected) (set! selected null))
(set! selected null))
(define (move-dones i) (define (move-dones i)
(send t move-cards (vector-ref dones i) (send t move-cards (vector-ref dones i)
(- (* 10 CARD-WIDTH) dx (* i (+ CARD-WIDTH dx))) (- (* 10 CARD-WIDTH) dx (* i (+ CARD-WIDTH dx)))
dy)) dy))
(define (draw push?) (define (draw push?)
(when push? (when push? (push-state!))
(push-state!)) (let ([drawn-cards
(let ([drawn-cards (let loop ([i 0])
(let loop ([i 0]) (if (or (= i (vector-length stacks)) (null? draw-pile))
(if (or (= i (vector-length stacks)) null
(null? draw-pile)) (if (vector-ref stacks i)
null (let ([a (car draw-pile)])
(if (vector-ref stacks i) (vector-set! stacks i (cons a (vector-ref stacks i)))
(let ([a (car draw-pile)]) (send a flip)
(vector-set! stacks i (cons a (set! draw-pile (cdr draw-pile))
(vector-ref stacks i))) (cons a (loop (add1 i))))
(send a flip) (loop (add1 i)))))])
(set! draw-pile (cdr draw-pile)) (send t card-to-front (car drawn-cards))
(cons a (loop (add1 i)))) (send t stack-cards drawn-cards))
(loop (add1 i)))))]) (shift-stacks))
(send t card-to-front (car drawn-cards))
(send t stack-cards drawn-cards))
(shift-stacks))
(define (check-complete) (define (check-complete)
(let loop ([i 0]) (let loop ([i 0])
(unless (= i (vector-length stacks)) (unless (= i (vector-length stacks))
(let ([l (vector-ref stacks i)]) (let ([l (vector-ref stacks i)])
(when (and (pair? l) (when (and (pair? l) (= 1 (send (car l) get-value)))
(= 1 (send (car l) get-value))) (let ([suit (send (car l) get-suit)])
(let ([suit (send (car l) get-suit)]) (let loop ([j 2][a (list (car l))][l (cdr l)])
(let loop ([j 2][a (list (car l))][l (cdr l)]) (cond
(cond [(= j 14)
[(= j 14) ;; Complete set - move 13 cards to a done pile
;; Complete set - move 13 cards to a done pile (vector-set! dones done-count a)
(vector-set! dones done-count a) (move-dones done-count)
(move-dones done-count) (set! done-count (add1 done-count))
(set! done-count (add1 done-count)) (for-each (lambda (c) (send c user-can-move #f)) a)
(for-each (lambda (c) (vector-set! stacks i l)]
(send c user-can-move #f)) [(and (pair? l)
a) (= j (send (car l) get-value))
(vector-set! stacks i l)] (equal? suit (send (car l) get-suit)))
[(and (pair? l) (loop (add1 j) (cons (car l) a) (cdr l))]
(= j (send (car l) get-value)) [else (void)])))))
(equal? suit (send (car l) get-suit))) (loop (add1 i)))))
(loop (add1 j) (cons (car l) a) (cdr l))]
[else (void)])))))
(loop (add1 i)))))
(define (shift-stacks) (define (shift-stacks)
(unselect) (unselect)
(check-complete) (check-complete)
(let ([cards (apply append (map reverse (vector->list stacks)))] (let ([cards (apply append (map reverse (vector->list stacks)))]
[deltas (list->vector [deltas (list->vector
(let loop ([i 0]) (let loop ([i 0])
(if (= i (vector-length stacks)) (if (= i (vector-length stacks))
null null
(append (append
(let* ([l (vector-ref stacks i)] (let* ([l (vector-ref stacks i)]
[ddy (min (quotient CARD-HEIGHT 3) [ddy (min (quotient CARD-HEIGHT 3)
(quotient (- (* CARD-HEIGHT 4) (quotient (- (* CARD-HEIGHT 4)
dy dy dy) dy dy dy)
(max 1 (sub1 (length l)))))]) (max 1 (sub1 (length l)))))])
(let loop ([l l][dy 0]) (let loop ([l l][dy 0])
(if (null? l) (if (null? l)
null null
(cons (list (* i (+ CARD-WIDTH dx)) dy) (cons (list (* i (+ CARD-WIDTH dx)) dy)
(loop (cdr l) (+ dy ddy)))))) (loop (cdr l) (+ dy ddy))))))
(loop (add1 i))))))]) (loop (add1 i))))))])
(send t move-cards cards dx (+ CARD-HEIGHT dy dy) (send t move-cards cards dx (+ CARD-HEIGHT dy dy)
(lambda (i) (apply values (vector-ref deltas i)))) (lambda (i) (apply values (vector-ref deltas i))))
(let loop ([i 0]) (let loop ([i 0])
(unless (= i (vector-length stacks)) (unless (= i (vector-length stacks))
(let ([l (vector-ref stacks i)]) (let ([l (vector-ref stacks i)])
(when (pair? l) (when (pair? l)
(when (send (car l) face-down?) (when (send (car l) face-down?) (send t flip-card (car l)))
(send t flip-card (car l))) (send (car l) user-can-move #t)
(send (car l) user-can-move #t) (let loop ([l (cdr l)][prev (car l)])
(let loop ([l (cdr l)][prev (car l)]) (unless (null? l)
(unless (null? l) (if (and (not (send (car l) face-down?))
(if (and (not (send (car l) face-down?)) (equal? (send prev get-suit)
(equal? (send prev get-suit) (send (car l) get-suit))
(send (car l) get-suit)) (= (add1 (send prev get-value))
(= (add1 (send prev get-value)) (send (car l) get-value)))
(send (car l) get-value))) (begin (send (car l) user-can-move #t)
(begin (loop (cdr l) (car l)))
(send (car l) user-can-move #t) (for-each (lambda (c) (send c user-can-move #f))
(loop (cdr l) (car l))) l))))))
(for-each (lambda (c) (loop (add1 i))))))
(send c user-can-move #f))
l))))))
(loop (add1 i))))))
(send t set-double-click-action void) (send t set-double-click-action void)
(send t set-single-click-action (send t set-single-click-action
(lambda (c) (lambda (c)
(cond (cond
[(and (pair? draw-pile) [(and (pair? draw-pile)
(eq? c (car draw-pile))) (eq? c (car draw-pile)))
(if (ormap null? (vector->list stacks)) (if (ormap null? (vector->list stacks)) (bell) (draw #t))]
(bell) [(and (pair? selected) (eq? c (car selected)))
(draw #t))] (unselect)]
[(and (pair? selected) (eq? c (car selected))) [(and (pair? selected)
(unselect)] (let ([i (find-stack c)])
[(and (pair? selected) (and i
(let ([i (find-stack c)]) (not (equal? i (find-stack (car selected))))
(and i (drag-ok? selected i)
(not (equal? i (find-stack (car selected)))) i)))
(drag-ok? selected i) => (lambda (i)
i))) (send t card-to-front (car (last-pair selected)))
=> (lambda (i) (send t stack-cards (reverse selected))
(send t card-to-front (car (last-pair selected))) (move-to-stack selected i))]
(send t stack-cards (reverse selected)) [(stacked-cards c) => (lambda (cards) (select cards))])))
(move-to-stack selected i))]
[(stacked-cards c)
=> (lambda (cards) (select cards))])))
;; Add a region for each stack to receive clicks when ;; Add a region for each stack to receive clicks when
;; the stack is empty: ;; the stack is empty:
(let loop ([i 0]) (let loop ([i 0])
(unless (= i (vector-length stacks)) (unless (= i (vector-length stacks))
(send t add-region (make-button-region (send t add-region (make-button-region
(+ dx (* i (+ CARD-WIDTH dx))) (+ dx (* i (+ CARD-WIDTH dx)))
(+ dy CARD-HEIGHT dy) (+ dy CARD-HEIGHT dy)
CARD-WIDTH CARD-HEIGHT CARD-WIDTH CARD-HEIGHT
#f #f
(lambda () (lambda ()
(when (and (null? (vector-ref stacks i)) (when (and (null? (vector-ref stacks i))
(pair? selected)) (pair? selected))
(move-to-stack selected i))))) (move-to-stack selected i)))))
(loop (add1 i)))) (loop (add1 i))))
(send t set-button-action 'left 'drag-raise/above) (send t set-button-action 'left 'drag-raise/above)
(send t set-button-action 'middle 'drag-raise/above) (send t set-button-action 'middle 'drag-raise/above)
(send t set-button-action 'right 'drag-raise/above) (send t set-button-action 'right 'drag-raise/above)
(define (reset-game!) (define (reset-game!)
(send t remove-cards deck) (send t remove-cards deck)
(set! deck (make-spider-deck)) (set! deck (make-spider-deck))
(send t add-cards deck dx dy) (send t add-cards deck dx dy)
(send t begin-card-sequence) (send t begin-card-sequence)
(unselect) (unselect)
(send undo enable #f) (send undo enable #f)
(set! draw-pile (shuffle-list deck 7)) (set! draw-pile (shuffle-list deck 7))
(for-each (lambda (c) (for-each (lambda (c)
(unless (send c face-down?) (unless (send c face-down?) (send c flip))
(send c flip)) (send c user-can-flip #f)
(send c user-can-flip #f) (send c user-can-move #f)
(send c user-can-move #f) (send c snap-back-after-move #t))
(send c snap-back-after-move #t)) draw-pile)
draw-pile) (set! stacks (make-vector 10 null))
(set! stacks (make-vector 10 null)) (set! dones (make-vector 8 null))
(set! dones (make-vector 8 null)) (set! done-count 0)
(set! done-count 0) (set! old-states null)
(set! old-states null) (send t stack-cards draw-pile)
(send t stack-cards draw-pile) (let loop ([i 0])
(let loop ([i 0]) (unless (= i (vector-length stacks))
(unless (= i (vector-length stacks)) (let ([n (if (< i 4) 5 4)])
(let ([n (if (< i 4) 5 4)]) (vector-set! stacks i (list-first-n draw-pile n))
(vector-set! stacks i (list-first-n draw-pile n)) (set! draw-pile (list-tail draw-pile n)))
(set! draw-pile (list-tail draw-pile n))) (loop (add1 i))))
(loop (add1 i)))) (draw #f)
(draw #f) (send t end-card-sequence))
(send t end-card-sequence)) (reset-game!)
(reset-game!) (send t show #t)
(send t show #t))))
))