init-gacela
quit-gacela
game-loop
+ gacela-script
game-running?
set-game-code
show-mob-hash
lambda-mob
define-checking-mobs)
#:re-export (get-current-color
+ get-texture-properties
set-current-color
with-color
progn-textures
(game-loop)))))
(define (init-gacela)
- (set! game-loop-thread (call-with-new-thread (lambda () (game))))
+ (hide-all-mobs)
+ (set-game-code (lambda () #f))
+ (cond ((not game-loop-thread)
+ (set! game-loop-thread (call-with-new-thread (lambda () (game))))))
(while (not loop-flag))
#t)
(define (quit-gacela)
+ (hide-all-mobs)
+ (set-game-code (lambda () #f))
(set! game-loop-thread #f)
(set! loop-flag #f))
(delay-frame))))
(quit-video))
+(define (gacela-script args)
+ (while loop-flag (sleep 1)))
+
(define (game-running?)
loop-flag)
(define current-mob-id #f)
+(define translate-mob translate)
+
(define (get-current-mob-id)
current-mob-id)
(hash-set! mob-functions mob-name name)))
name))
-(define-macro (the-mob type init-data fun-name)
+(define-macro (the-mob mob-name init-data)
`(let ((mob-id (gensym))
(mob-z-index 0)
(mob-time 0)
((get-z-index)
mob-z-index)
((get-type)
- ,type)
+ (procedure-name ,mob-name))
((get-data)
(save-data)
saved-data)
(else
- (save-data)
- (let ((res (,fun-name mob-id mob-data)))
- (set! mob-z-index (car res))
- (set! mob-data (cadr res))))))))
-
-(define-macro (define-mob-function head . body)
- (let ((fun-name (car head))
- (attr (map (lambda (a) (if (list? a) a (list a #f))) (cdr head)))
+ (cond ((keyword? option)
+ (assoc-ref saved-data (keyword->symbol option)))
+ (else
+ (save-data)
+ (let ((res (,mob-name mob-id mob-data)))
+ (set! mob-z-index (car res))
+ (set! mob-data (cadr res))))))))))
+
+(define-macro (define-mob-function attr . body)
+ (let ((attr (map (lambda (a) (if (list? a) a (list a #f))) attr))
(mob-id-symbol (gensym))
(mob-id-z-index (gensym))
(data-symbol (gensym)))
- `(define (,fun-name ,mob-id-symbol ,data-symbol)
+ `(lambda (,mob-id-symbol ,data-symbol)
(let ((,mob-id-z-index 0))
(define (kill-me)
(hide-mob-hash ,mob-id-symbol))
(else
(set! ,mob-id-z-index (+ ,mob-id-z-index z))
(translate-mob x y))))
- (let ,attr
+ (let* ,attr
,@(map
(lambda (a)
`(let ((val (assoc-ref ,data-symbol ',(car a))))
(list ,mob-id-z-index (list ,@(map (lambda (a) `(cons ',(car a) ,(car a))) attr))))))))
(define-macro (define-mob mob-head . body)
- (let* ((name (car mob-head)) (attr (cdr mob-head))
- (fun-name (get-mob-function-name name)))
- `(begin
- (define-mob-function ,(cons fun-name attr) ,@body)
- (define ,(string->symbol (string-concatenate (list "make-" (symbol->string name))))
+ (let* ((name (car mob-head))
+ (attr (cdr mob-head))
+ (make-fun-symbol (gensym))
+ (mob-fun-symbol (gensym))
+ (params-symbol (gensym)))
+ `(define (,name . ,params-symbol)
+ (define ,make-fun-symbol
(lambda* ,(if (null? attr) '() `(#:key ,@attr))
- (the-mob ',name (list ,@(map (lambda (a) `(cons ',(car a) ,(car a))) attr)) ,fun-name))))))
+ (the-mob ,name (list ,@(map (lambda (a) `(cons ',(car a) ,(car a))) attr)))))
+ (define ,mob-fun-symbol
+ (define-mob-function ,attr ,@body))
+ (cond ((or (null? ,params-symbol) (keyword? (car ,params-symbol)))
+ (apply ,make-fun-symbol ,params-symbol))
+ (else
+ (apply ,mob-fun-symbol ,params-symbol))))))
(define-macro (lambda-mob attr . body)
(let ((fun-name (gensym)))
;;; Functions for checking mobs (collisions and more)
-(define translate-mob translate)
-
(define (map-mobs fun type)
(let ((mobs (filter (lambda (m) (and (eq? (m 'get-type) type) (not (eq? (m 'get-mob-id) (get-current-mob-id))))) (get-active-mobs))))
(map (lambda (m) (fun (m 'get-data))) mobs)))
(let ,(map (lambda (a) `(,(car a) (assoc-ref m ',(cadr a)))) attr)
,@body))
',type))))
+
+
+;;; Scenes
+
+(define-macro (define-scene name . body)
+ `(define (,name)
+ ,@body))