-(define (init-gacela)
- (init-sdl)
- (init-gl))
-
-
-(define set-frames-per-second #f)
-(define init-frame-time #f)
-(define delay-frame #f)
-
-(let ((time 0) (time-per-frame (/ 1000.0 *frames-per-second*)))
- (set! set-frames-per-second
- (lambda (fps)
- (set! time-per-frame (/ 1000.0 fps))))
-
- (set! init-frame-time
- (lambda ()
- (set! time (SDL_GetTicks))))
-
- (set! delay-frame
- (lambda ()
- (let ((frame-time (- (SDL_GetTicks) time)))
- (cond ((< frame-time time-per-frame)
- (SDL_Delay (- time-per-frame frame-time))))))))
-
-
-(define set-game-properties #f)
-(define get-game-properties #f)
-
-(let ((ptitle "") (pwidth *width-screen*) (pheight *height-screen*) (pbpp *bpp-screen*) (pfps *frames-per-second*) (pmode '2d))
- (set! set-game-properties
- (lambda* (#:key title width height bpp fps mode)
-; (init-video-mode)
- (if title
- (begin
- (set! ptitle title)
- (if (video-mode-on?) (SDL_WM_SetCaption title ""))))
- (if (or width height bpp)
- (begin
- (if width (set! pwidth width))
- (if height (set! pheight height))
- (if bpp (set! pbpp bpp))
- (if (video-mode-on?) (resize-screen pwidth pheight pbpp))))
- (if fps
- (begin
- (set! pfps fps)
- (set-frames-per-second fps)))
- (if mode
- (begin
- (set! pmode mode)
- (if (video-mode-on?)
- (if (eq? mode '3d) (set-3d-mode) (set-2d-mode)))))
- (get-game-properties)))
-
- (set! get-game-properties
- (lambda ()
- `((title . ,ptitle) (width . ,pwidth) (height . ,pheight) (bpp . ,pbpp) (fps . ,pfps) (mode . ,pmode)))))
-
-
-(define-macro (run-game . code)
- `(let ((game-function ,(if (null? code)
- `(lambda () #f)
- `(lambda () ,@code))))
- (init-video-mode)
- (set-game-code game-function)
- (cond ((not (game-running?))
- (game-loop)))))
-
-(define game-loop #f)
-(define game-running? #f)
-(define set-game-code #f)
-
-(let ((running #f) (game-code #f) (mobs '()))
- (set! game-loop
- (lambda ()
- (set! mobs (get-active-mobs))
- (set! running #t)
- (quit? #f)
- (do () ((quit?))
- (init-frame-time)
-; (check-connections)
-; (eval-from-clients)
- (process-events)
- (cond ((not (quit?))
- (glClear (+ GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT))
- (to-origin)
- (cond ((mobs-changed?) (set! mobs (get-active-mobs))))
- (if (procedure? game-code) (game-code))
- (process-mobs mobs)
- (SDL_GL_SwapBuffers)
- (delay-frame))))
- (set! running #f)))
-
- (set! game-running?
- (lambda ()
- running))
-
- (set! set-game-code
- (lambda (game-function)
- (set! game-code game-function))))
-
-(define (quit-game)
- (quit-audio)
- (quit-video-mode)
-; (quit-all-mobs)
-; (kill-all-objects)
-; (clear-events)
- (quit-events)
- (quit-sdl))
+(define *title* "Gacela")
+(define *width-screen* 640)
+(define *height-screen* 480)
+(define *bpp-screen* 32)
+(define *frames-per-second* 20)
+(define *mode* '2d)
+(define *fullscreen* 'off)
+
+(define* (set-game-properties! #:key title width height bpp fps mode fullscreen)
+ (if title
+ (set-screen-title! title))
+ (if bpp
+ (set-screen-bpp! bpp))
+ (if (or width height)
+ (begin
+ (if (not width) (set! width (get-screen-width)))
+ (if (not height) (set! height (get-screen-height)))
+ (resize-screen width height)))
+ (if fps
+ (set-frames-per-second! fps))
+ (if mode
+ (if (eq? mode '3d) (set-3d-mode) (set-2d-mode)))
+ (if fullscreen
+ (set-fullscreen! fullscreen))
+ (get-game-properties))
+
+(define (get-game-properties)
+ `((title . ,(get-screen-title)) (width . ,(get-screen-width)) (height . ,(get-screen-height)) (bpp . ,(get-screen-bpp)) (fps . ,(get-frames-per-second)) (mode . ,(if (3d-mode?) '3d '2d)) (fullscreen . ,(get-fullscreen))))
+
+
+;;; Mobs Factory
+
+(define mobs-table (make-hash-table))
+(define active-mobs '())
+(define mobs-changed #f)
+
+(define (show-mob-hash mob)
+ (hash-set! mobs-table (mob 'get-mob-id) mob)
+ (set! mobs-changed #t))
+
+(define (hide-mob-hash mob-id)
+ (hash-remove! mobs-table mob-id)
+ (set! mobs-changed #t))
+
+(define (refresh-active-mobs)
+ (cond (mobs-changed
+ (set! mobs-changed #f)
+ (set! active-mobs (hash-map->list (lambda (k v) v) mobs-table)))))
+
+(define (get-active-mobs)
+ active-mobs)
+
+(define (hide-all-mobs)
+ (set! mobs-changed #t)
+ (hash-clear! mobs-table))
+
+(define (mobs-changed?)
+ mobs-changed)
+
+
+(define-macro (show-mob mob)
+ (cond ((list? mob)
+ `(let ((m ,mob))
+ (show-mob-hash m)))
+ (else
+ `(show-mob-hash (lambda* (#:optional (option #f)) (,mob option))))))
+
+(define-macro (hide-mob mob)
+ (cond ((list? mob)
+ `(let ((m ,mob))
+ (hide-mob-hash (m 'get-mob-id))))
+ (else
+ `(hide-mob-hash (,mob 'get-mob-id)))))
+
+(define current-mob-id #f)
+
+(define translate-mob translate)
+
+(define (get-current-mob-id)
+ current-mob-id)
+
+(define* (run-mobs #:optional (mobs (get-active-mobs)))
+ (let ((sorted-mobs (sort mobs (lambda (m1 m2) (< (m1 'get-z-index) (m2 'get-z-index))))))
+ (for-each
+ (lambda (m)
+ (set! current-mob-id (m 'get-mob-id))
+ (glmatrix-block (m)))
+ sorted-mobs)
+ (set! current-mob-id #f)))
+
+
+;;; Making mobs
+
+(define mob-functions (make-hash-table))
+
+(define (get-mob-function-name mob-name)
+ (let ((name (hash-ref mob-functions mob-name)))
+ (cond ((not name)
+ (set! name (gensym))
+ (hash-set! mob-functions mob-name name)))
+ name))
+
+(define-macro (the-mob mob-name init-data)
+ `(let ((mob-id (gensym))
+ (mob-z-index 0)
+ (mob-time 0)
+ (mob-data ,init-data)
+ (saved-data ,init-data))
+ (lambda* (#:optional (option #f))
+ (define (save-data)
+ (let ((time (get-frame-time)))
+ (cond ((not (= time mob-time))
+ (set! mob-time time)
+ (set! saved-data mob-data)))))
+ (case option
+ ((get-mob-id)
+ mob-id)
+ ((get-z-index)
+ mob-z-index)
+ ((get-type)
+ (procedure-name ,mob-name))
+ ((get-data)
+ (save-data)
+ saved-data)
+ (else
+ (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)))
+ `(lambda (,mob-id-symbol ,data-symbol)
+ (let ((,mob-id-z-index 0))
+ (define (kill-me)
+ (hide-mob-hash ,mob-id-symbol))
+ (define* (translate x y #:optional (z 0))
+ (cond ((3d-mode?)
+ (translate-mob x y z))
+ (else
+ (set! ,mob-id-z-index (+ ,mob-id-z-index z))
+ (translate-mob x y))))
+ (let* ,attr
+ ,@(map
+ (lambda (a)
+ `(let ((val (assoc-ref ,data-symbol ',(car a))))
+ (cond (val (set! ,(car a) val)))))
+ attr)
+ (catch #t
+ (lambda* () ,@body)
+ (lambda (key . args) #f))
+ (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))
+ (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)))))
+ (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)))
+ `(begin
+ (define-mob-function ,(cons fun-name attr) ,@body)
+ (the-mob 'undefined '() ,fun-name))))
+
+
+;;; Functions for checking mobs (collisions and more)
+
+(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)))
+
+(define-macro (define-checking-mobs head mob-def . body)
+ (let ((type (car mob-def)) (attr (cdr mob-def)))
+ `(define ,head
+ (map-mobs
+ (lambda (m)
+ (let ,(map (lambda (a) `(,(car a) (assoc-ref m ',(cadr a)))) attr)
+ ,@body))
+ ',type))))
+
+
+;;; Scenes
+
+(define-macro (define-scene name . body)
+ `(define (,name)
+ ,@body))
+
+
+(module-map (lambda (sym var)
+ (if (not (eq? sym '%module-public-interface))
+ (module-export! (current-module) (list sym))))
+ (current-module))