X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=src%2Fgacela.scm;h=b9d13160dccac4bce3695d60fb0922e657d3393f;hb=1c898284a9d3ea84cda71e4ff3c6f39c0bba644b;hp=a9d67711599253964c158718c3648ce0d29e9e26;hpb=0b8b2e68b4ef4205e43d58a4b44fbf3c48758629;p=gacela.git diff --git a/src/gacela.scm b/src/gacela.scm index a9d6771..b9d1316 100644 --- a/src/gacela.scm +++ b/src/gacela.scm @@ -20,9 +20,7 @@ #:use-module (gacela video) #:use-module (gacela audio) #:use-module (ice-9 optargs) - #:export (load-texture - load-font - *title* + #:export (*title* *width-screen* *height-screen* *bpp-screen* @@ -33,120 +31,141 @@ init-gacela quit-gacela game-loop + gacela-script game-running? - set-game-code show-mob-hash hide-mob-hash - hide-all-mobs) + get-active-mobs + hide-all-mobs + get-current-mob-id + get-mob-function-name + map-mobs + translate-mob) #:export-syntax (game show-mob hide-mob the-mob + define-mob-function define-mob - lambda-mob) - #:re-export (get-current-color - set-current-color - with-color - progn-textures - draw - draw-texture - draw-line - draw-quad - draw-rectangle - draw-square - draw-cube - translate - rotate - to-origin - add-light - set-camera - camera-look - render-text - get-frame-time)) - - -;;; Resources Cache - -(define resources-cache (make-weak-value-hash-table)) - -(define (from-cache key) - (hash-ref resources-cache key)) - -(define (into-cache key res) - (hash-set! resources-cache key res)) - -(define-macro (use-cache-with module proc) - (let* ((pwc (string->symbol (string-concatenate (list (symbol->string proc) "-without-cache"))))) - `(begin - (define ,pwc (@ ,module ,proc)) - (define (,proc . param) - (let* ((key param) - (res (from-cache key))) - (cond (res - res) - (else - (set! res (apply ,pwc param)) - (into-cache key res) - res))))))) - -(use-cache-with (gacela video) load-texture) -(use-cache-with (gacela video) load-font) + lambda-mob + define-checking-mobs) + #:re-export (get-frame-time + 3d-mode?)) ;;; Main Loop -(define loop-flag #f) -(define game-code #f) +(define game-loop-flag #f) (define game-loop-thread #f) +(define game-loop-procedure #f) + +(define-macro (run-in-game-loop proc) + (let ((pgl (string->symbol (string-concatenate (list (symbol->string proc) "-in-game-loop")))) + (flag-symbol (gensym)) + (value-symbol (gensym))) + `(begin + (define ,pgl ,proc) + (define (,proc . param) + (cond ((and game-loop-thread (not (eq? game-loop-thread (current-thread)))) + (let ((,flag-symbol #f)) + (define ,value-symbol) + (system-async-mark + (lambda () + (catch #t + (lambda () (set! ,value-symbol (apply ,pgl param))) + (lambda (key . args) #f)) + (set! ,flag-symbol #t)) + game-loop-thread) + (while (not ,flag-symbol)) + ,value-symbol)) + (else + (apply ,pgl param))))))) + +(run-in-game-loop load-texture) +(run-in-game-loop load-font) +(run-in-game-loop set-screen-bpp!) +(run-in-game-loop resize-screen) (define-macro (game . code) - `(let ((game-function ,(if (null? code) - `(lambda () #f) - `(lambda () ,@code)))) - (set-game-code game-function) - (cond ((not (game-running?)) - (game-loop))))) - -(define-macro (run-in-game-loop . code) - `(if game-loop-thread - (system-async-mark (lambda () ,@code) game-loop-thread) - (begin ,@code))) + `(set! game-loop-procedure + ,(if (null? code) + `#f + `(lambda (game-elements) ,@code)))) (define (init-gacela) - (set! game-loop-thread (call-with-new-thread (lambda () (game))))) +; (hide-all-mobs) + (cond ((not game-loop-thread) + (set! game-loop-thread (call-with-new-thread (lambda () (cond ((not (game-running?)) (game-loop)))))))) + (while (not game-loop-flag)) + #t) (define (quit-gacela) +; (hide-all-mobs) (set! game-loop-thread #f) - (set! loop-flag #f)) + (set! game-loop-flag #f) + (quit-video)) (define (game-loop) - (refresh-active-mobs) - (set! loop-flag #t) +; (refresh-active-mobs) (init-video *width-screen* *height-screen* *bpp-screen* #:title *title* #:mode *mode* #:fps *frames-per-second*) - (while loop-flag - (init-frame-time) + (set! game-loop-flag #t) + (let loop ((game-elements '())) + (cond (game-loop-flag + (init-frame-time) ; (check-connections) - (process-events) - (cond ((quit-signal?) - (quit-gacela)) - (else - (clear-screen) - (to-origin) - (refresh-active-mobs) - (if (procedure? game-code) - (catch #t - (lambda () (game-code)) - (lambda (key . args) #f))) - (run-mobs) - (flip-screen) - (delay-frame)))) - (quit-video)) + (process-events) + (cond ((quit-signal?) + (quit-gacela)) + (else + (clear-screen) + (to-origin) +; (refresh-active-mobs) +; (run-mobs) +; (run-extensions) + (if game-loop-procedure + (catch #t + (lambda () (set! game-elements (game-loop-procedure game-elements))) + (lambda (key . args) #f))) + (process-game-elements game-elements) + (flip-screen) + (delay-frame) + (loop game-elements))))))) (define (game-running?) - loop-flag) + game-loop-flag) + +(define (process-game-elements elements) + (cond ((not (list? elements)) + (process-game-elements (list elements))) + (else + (draw-meshes (filter (lambda (e) (mesh? e)) elements))))) -(define (set-game-code game-function) - (set! game-code game-function)) +(define (draw-meshes meshes) + (cond ((null? meshes) #t) + (else + (catch #t + (lambda () (mesh-draw (car meshes))) + (lambda (key . args) #f)) + (draw-meshes (cdr meshes))))) + +;;; Extensions to main loop + +(define extensions '()) + +(define (add-extension! proc pri) + "Add an extension with a priority to the main loop" + (set! extensions + (sort (assoc-set! extensions proc pri) + (lambda (a b) + (< (cdr a) (cdr b)))))) + +(define (remove-extension! proc) + "Remove an extension from the main loop" + (set! extensions + (assoc-remove! extensions proc))) + +(define (run-extensions) + (for-each (lambda (x) ((car x))) extensions)) ;;; Game Properties @@ -157,24 +176,28 @@ (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) +(define* (set-game-properties! #:key title width height bpp fps mode fullscreen) (if title (set-screen-title! title)) (if bpp - (run-in-game-loop (set-screen-bpp! 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))) - (run-in-game-loop (resize-screen width 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 (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)))) + `((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 @@ -221,72 +244,139 @@ (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))) - (for-each - (lambda (m) - (glmatrix-block (m))) - 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-macro (the-mob type attr publish . body) - (let ((mob-id-symbol (gensym)) - (type-symbol (gensym)) - (time-symbol (gensym)) +(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))) - `(let ((,mob-id-symbol (gensym)) - (,type-symbol ,type) - (,time-symbol 0) - (,data-symbol '()) - ,@attr) - (lambda* (#:optional (option #f)) + `(lambda (,mob-id-symbol ,data-symbol) + (let ((,mob-id-z-index 0)) (define (kill-me) (hide-mob-hash ,mob-id-symbol)) - (define (save-data) - (let ((time (get-frame-time))) - (cond ((not (= time ,time-symbol)) - (set! ,time-symbol time) - (set! ,data-symbol ,(cons 'list (map (lambda (x) `(cons ',(car x) ,(car x))) publish))))))) - (define (get-data) - ,data-symbol) - (define (filter-mobs type fun) - #t) - (define (map-mobs fun type) - (let ((mobs (filter (lambda (m) (and (eq? (m 'get-type) type) (not (eq? (m 'get-mob-id) ,mob-id-symbol)))) (get-active-mobs)))) - (map (lambda (m) (fun (m 'get-data))) mobs))) - (case option - ((get-mob-id) - ,mob-id-symbol) - ((get-type) - ,type-symbol) - ((get-data) - (save-data) - ,data-symbol) - (else - (save-data) - (catch #t - (lambda () ,@body) - (lambda (key . args) #f)))))))) + (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))) - `(define ,(string->symbol (string-concatenate (list "make-" (symbol->string name)))) - (lambda* ,(if (null? attr) '() `(#:key ,@attr)) - (the-mob ',name () ,attr ,@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) - `(the-mob 'undefined ,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 -;;; Collisions +(define-macro (define-scene name . body) + `(define (,name) + ,@body)) -;; (define-macro (lambda-mob-data attr . body) -;; `(lambda ,attr ,@body)) -;; (define-macro (define-collision-check name mobs . body) -;; `(defmacro* ,name (#:optional m) -;; `(let ,(cond (m `((mob-id (,m 'get-mob-id)) (mob-type (,m 'get-type)))) -;; (else `())) - -;; mob-id))) +(module-map (lambda (sym var) + (if (not (eq? sym '%module-public-interface)) + (module-export! (current-module) (list sym)))) + (current-module))