From 6a3d1ffb69036e6d4f1c239fd7d52f9bfc48d50c Mon Sep 17 00:00:00 2001 From: jsancho Date: Sun, 15 May 2011 12:02:30 +0000 Subject: [PATCH] --- src/gacela.c | 1 + src/gacela.scm | 240 +++++++++++++++----------------------------- src/gacela_misc.scm | 17 ++++ 3 files changed, 101 insertions(+), 157 deletions(-) create mode 100644 src/gacela_misc.scm diff --git a/src/gacela.c b/src/gacela.c index ff1954f..42bfdf0 100644 --- a/src/gacela.c +++ b/src/gacela.c @@ -54,6 +54,7 @@ main (int argc, char *argv[]) scm_c_eval_string ("(set-repl-prompt! \"gacela>\")"); scm_c_eval_string ("(use-modules (ice-9 readline))"); scm_c_eval_string ("(activate-readline)"); + scm_c_eval_string ("(use-modules (ice-9 optargs))"); load_scheme_files (dirname (argv[0])); scm_shell (argc, argv); } diff --git a/src/gacela.scm b/src/gacela.scm index 4a1a7bc..7d63068 100644 --- a/src/gacela.scm +++ b/src/gacela.scm @@ -21,6 +21,7 @@ (define *bpp-screen* 32) (define *frames-per-second* 20) + ;;; SDL Initialization Subsystem (define init-sdl #f) (define quit-sdl #f) @@ -37,7 +38,6 @@ (set! initialized #f)))) - ;;; Video Subsystem (define init-video-mode #f) (define resize-screen #f) @@ -46,10 +46,7 @@ (let ((screen #f) (flags 0) (current-width *width-screen*) (current-height *height-screen*) (current-bpp *bpp-screen*)) (set! init-video-mode - (lambda (. args) - (let ((width (cond ((assq 'width args - - (lambda (&key (width current-width) (height current-height) (bpp *bpp-screen*)) + (lambda* (#:optional (width current-width) (height current-height) (bpp current-bpp)) (cond ((not screen) (init-sdl) (SDL_GL_SetAttribute SDL_GL_DOUBLEBUFFER 1) @@ -65,7 +62,7 @@ (else #t)))) (set! resize-screen - (lambda (width height &optional (bpp current-bpp)) + (lambda* (width height #:optional (bpp current-bpp)) (cond (screen (set! screen (SDL_SetVideoMode width height bpp flags)) (resize-screen-GL width height))) (set! current-width width) @@ -77,13 +74,13 @@ (set! quit-video-mode (lambda () (set! screen #f)))) -(defun set-2d-mode () +(define (set-2d-mode) (cond ((not (3d-mode?)) (init-video-mode) (glDisable GL_DEPTH_TEST) (apply-mode-change)))) -(defun set-3d-mode () +(define (set-3d-mode) (cond ((3d-mode?) (init-video-mode) (glClearDepth 1) @@ -91,10 +88,10 @@ (glDepthFunc GL_LEQUAL) (apply-mode-change)))) -(defun 3d-mode? () - (eq (getf (get-game-properties) :mode) '3d)) +(define (3d-mode?) + (eq? (assoc-ref (get-game-properties) 'mode) '3d)) -(defun init-GL () +(define (init-GL) (glShadeModel GL_SMOOTH) (glClearColor 0 0 0 0) ; (glClearDepth 1) @@ -102,183 +99,112 @@ ; (glEnable GL_BLEND) ; (glBlendFunc GL_SRC_ALPHA GL_ONE) (glHint GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST) - t) + #t) -(defun init-lighting () +(define (init-lighting) (init-video-mode) (glEnable GL_LIGHTING)) -(defun resize-screen-GL (width height) +(define (resize-screen-GL width height) (glViewPort 0 0 width height) (glMatrixMode GL_PROJECTION) (glLoadIdentity) (cond ((3d-mode?) (let ((ratio (if (= height 0) width (/ width height)))) (gluPerspective 45 ratio 0.1 100))) ;0.1 - (t (let* ((w (/ width 2)) (-w (neg w)) (h (/ height 2)) (-h (neg h))) - (glOrtho -w w -h h 0 1)))) + (else (let* ((w (/ width 2)) (-w (neg w)) (h (/ height 2)) (-h (neg h))) + (glOrtho -w w -h h 0 1)))) (glMatrixMode GL_MODELVIEW) (glLoadIdentity) - t)) + #t) + +(define get-current-color #f) +(define set-current-color #f) (let ((current-color '(1 1 1 1))) - (defun get-current-color () - current-color) + (set! get-current-color + (lambda () + current-color)) - (defun set-current-color (red green blue &optional (alpha 1)) - (setq current-color (list red green blue alpha)) - (glColor4f red green blue alpha))) + (set! set-current-color + (lambda* (red green blue #:optional (alpha 1)) + (set! current-color (list red green blue alpha)) + (glColor4f red green blue alpha)))) -(defun load-image (image-file &key (transparent-color nil)) +(define* (load-image image-file #:key transparent-color) (init-video-mode) (let ((loaded-image (IMG_Load image-file))) - (cond ((= loaded-image 0) nil) - (t (let ((optimized-image (SDL_DisplayFormat loaded-image))) - (SDL_FreeSurface loaded-image) - (cond ((= optimized-image 0) nil) - ((null transparent-color) optimized-image) - (t (SDL_SetColorKey optimized-image - SDL_SRCCOLORKEY - (SDL_MapRGB (surface-format optimized-image) - (car transparent-color) - (cadr transparent-color) - (caddr transparent-color))) - optimized-image))))))) + (cond ((= loaded-image 0) #f) + (else (let ((optimized-image (SDL_DisplayFormat loaded-image))) + (SDL_FreeSurface loaded-image) + (cond ((= optimized-image 0) #f) + ((not transparent-color) optimized-image) + (else (SDL_SetColorKey optimized-image + SDL_SRCCOLORKEY + (SDL_MapRGB (surface-format optimized-image) + (car transparent-color) + (cadr transparent-color) + (caddr transparent-color))) + optimized-image))))))) ;;; Audio Subsystem -(let ((audio nil)) - - (defun init-audio () - (cond ((null audio) (progn (init-sdl) (setq audio (Mix_OpenAudio 22050 MIX_DEFAULT_FORMAT 2 4096)))) - (t audio))) - - (defun quit-audio () - (setq audio (Mix_CloseAudio)))) - - -;;; Resources Manager -(defstruct resource plist constructor destructor time) - -(defun make-resource-texture (&key filename min-filter mag-filter) - `(:type texture :filename ,filename :min-filter ,min-filter :mag-filter ,mag-filter)) - -(defun make-resource-font (&key filename encoding) - `(:type font :filename ,filename :enconding ,encoding)) - -(defun make-resource-sound (&key filename) - `(:type sound :filename ,filename)) - -(defun make-resource-music (&key filename) - `(:type music :filename ,filename)) - -(defmacro get-rtime (key) - `(resource-time (gethash ,key resources-table))) - -(defmacro get-rplist (key) - `(resource-plist (gethash ,key resources-table))) - -(defmacro get-rconstructor (key) - `(resource-constructor (gethash ,key resources-table))) - -(defmacro get-rdestructor (key) - `(resource-destructor (gethash ,key resources-table))) +(define init-audio #f) +(define quit-audio #f) -(let ((resources-table (make-hash-table :test 'equal)) - (expiration-time 50000)) - - (defun set-expiration-time (new-time) - (setq expiration-time new-time)) - - (defun set-resource (key plist constructor destructor &key static) - (expire-resources) - (setf (gethash key resources-table) - (make-resource :plist plist - :constructor constructor - :destructor destructor - :time (if static t (SDL_GetTicks))))) - - (defun get-resource (key) - (cond ((null (gethash key resources-table)) nil) - (t (let ((time (get-rtime key))) - (cond ((null time) (funcall (get-rconstructor key))) - ((numberp time) (setf (get-rtime key) (SDL_GetTicks)))) - (get-rplist key))))) - - (defun free-resource (key) - (funcall (get-rdestructor key)) - (setf (get-rtime key) nil)) - - (defun expire-resource (key &optional (now (SDL_GetTicks))) - (let ((time (get-rtime key))) - (cond ((and (numberp time) (> (- now time) expiration-time)) (free-resource key))))) - - (defun expire-resources () - (maphash (lambda (key res) (expire-resource key)) resources-table)) - - (defun free-all-resources () - (maphash (lambda (key res) (free-resource key)) resources-table))) - - -;;; Connection with Gacela Clients -(let (server-socket clients) - (defun start-server (port) - (cond ((null server-socket) (setq server-socket (si::socket port :server #'check-connections))))) +(let ((audio #f)) + (set! init-audio + (lambda () + (cond ((not audio) (begin (init-sdl) (set! audio (Mix_OpenAudio 22050 MIX_DEFAULT_FORMAT 2 4096)))) + (else audio)))) - (defun check-connections () - (cond ((and server-socket (listen server-socket)) (setq clients (cons (si::accept server-socket) clients))))) + (set! quit-audio + (lambda () + (Mix_CloseAudio) + (set! audio #f)))) - (defun eval-from-clients () - (labels ((eval-clients (cli-socks) - (cond (cli-socks - (let ((cli (car cli-socks))) - (cond ((si::listen cli) - (secure-block cli (eval (read cli))) - (si::close cli) - (eval-clients (cdr cli-socks))) - (t - (cons cli (eval-clients (cdr cli-socks)))))))))) - (setq clients (eval-clients clients)))) - (defun stop-server () - (cond (server-socket (si::close server-socket) (setq server-socket nil))) - (cond (clients - (labels ((close-clients (cli-socks) - (si::close (car cli-socks)) - (close-clients (cdr cli-socks)))) - (close-clients clients)) - (setq clients nil))))) +;;; GaCeLa Functions +(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)))) -;;; GaCeLa Functions -(let (time (time-per-frame (/ 1000.0 *frames-per-second*))) - (defun set-frames-per-second (fps) - (setq time-per-frame (/ 1000.0 fps))) + (set! init-frame-time + (lambda () + (set! time (SDL_GetTicks)))) - (defun init-frame-time () - (setq 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)))))))) - (defun delay-frame () - (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)) - (defun set-game-properties (&key title width height bpp fps mode) - (init-video-mode) - (when title (progn (setq ptitle title) (SDL_WM_SetCaption title ""))) - (when (or width height bpp) - (progn - (when width (setq pwidth width)) - (when height (setq pheight height)) - (when bpp (setq pbpp bpp)) - (resize-screen pwidth pheight pbpp))) - (when fps (progn (setq pfps fps) (set-frames-per-second fps))) - (when mode (progn (setq pmode mode) (if (eq mode '3d) (set-3d-mode) (set-2d-mode)))) - (get-game-properties)) - - (defun get-game-properties () - (list :title ptitle :width pwidth :height pheight :bpp pbpp :fps pfps :mode pmode))) + (set! set-game-properties + (lambda* (#:key title width height bpp fps mode) + (init-video-mode) + (if title (begin (set! ptitle title) (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)) + (resize-screen pwidth pheight pbpp))) + (if fps (begin (set! pfps fps) (set-frames-per-second fps))) + (if mode (begin (set! pmode mode) (if (eq? mode '3d) (set-3d-mode) (set-2d-mode)))) + (get-game-properties))) + + (set! get-game-properties + (lambda () + (list :title ptitle :width pwidth :height pheight :bpp pbpp :fps pfps :mode pmode))) (defmacro run-game (&body code) diff --git a/src/gacela_misc.scm b/src/gacela_misc.scm new file mode 100644 index 0000000..c95abf5 --- /dev/null +++ b/src/gacela_misc.scm @@ -0,0 +1,17 @@ +;;; Gacela, a GNU Guile extension for fast games development +;;; Copyright (C) 2009 by Javier Sancho Fernandez +;;; +;;; This program is free software: you can redistribute it and/or modify +;;; it under the terms of the GNU General Public License as published by +;;; the Free Software Foundation, either version 3 of the License, or +;;; (at your option) any later version. +;;; +;;; This program is distributed in the hope that it will be useful, +;;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;;; GNU General Public License for more details. +;;; +;;; You should have received a copy of the GNU General Public License +;;; along with this program. If not, see . + + -- 2.39.2