X-Git-Url: https://git.jsancho.org/?a=blobdiff_plain;f=gacela.lisp;h=bf7cea34a889da6d1e6074d54a53858374673515;hb=a43020f63638aee6921f1c6333b0d81fa72d4e11;hp=62594b53508a1a15d7aa6fa1cc1672e929c955b3;hpb=678a1561ca858c34fecf04792831caf68559c2ac;p=gacela.git diff --git a/gacela.lisp b/gacela.lisp index 62594b5..bf7cea3 100644 --- a/gacela.lisp +++ b/gacela.lisp @@ -22,10 +22,9 @@ (defvar *height-screen* 480) (defvar *bpp-screen* 32) (defvar *title-screen* "Happy Hacking!!") -(defvar *gacela-freq* 30) +(defvar *frames-per-second* 20) (defvar *transparent-color* '(:red 0 :green 0 :blue 0)) (defvar *background-color* '(:red 0 :green 0 :blue 0)) -(defvar *zoom* -10) ;;; SDL Initialization Subsystem (let (initialized) @@ -89,16 +88,24 @@ (defun init-GL () + (2d-mode) (glShadeModel GL_SMOOTH) (glClearColor 0 0 0 0) (glClearDepth 1) - (glEnable GL_DEPTH_TEST) (glDepthFunc GL_LEQUAL) ; (glEnable GL_BLEND) ; (glBlendFunc GL_SRC_ALPHA GL_ONE) (glHint GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST) t) +(defmacro progn-textures (&body code) + `(let (values) + (init-video-mode) + (glEnable GL_TEXTURE_2D) + (setq values (multiple-value-list (progn ,@code))) + (glDisable GL_TEXTURE_2D) + (apply #'values values))) + (defun init-textures () (init-video-mode) (glEnable GL_TEXTURE_2D)) @@ -109,23 +116,23 @@ (defun resize-screen-GL (width height) (let ((ratio (if (= height 0) width (/ width height)))) - (glViewPort 0 0 width height) +; (glViewPort 0 0 width height) (glMatrixMode GL_PROJECTION) (glLoadIdentity) - (gluPerspective 45 ratio 0.1 100) + (let* ((w (/ width 2)) (-w (neg w)) (h (/ height 2)) (-h (neg h))) + (glOrtho -w w -h h 0 1)) +; (gluPerspective 45 ratio 0.1 100) (glMatrixMode GL_MODELVIEW) (glLoadIdentity) t)) -(defun copy-surface (source) - (cond ((surface-p source) - (let ((new-surface - (make-surface :address (copy-SDL_Surface (surface-address source)) - :clip-w (surface-clip-w source) - :clip-h (surface-clip-h source) - :shape (surface-shape source)))) - (set-resource 'image new-surface (gentemp)) - new-surface)))) +(let ((current-color '(1 1 1 1))) + (defun get-current-color () + 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))) (defun load-image (image-file &key (transparent-color nil)) (init-video-mode) @@ -183,32 +190,6 @@ (flip)) -(defun filled-circle (radius &optional (color '(:red 255 :green 255 :blue 255))) - (init-video-mode) - (let ((new-surface (create-surface (1+ (* radius 2)) (1+ (* radius 2))))) - (sge_FilledCircle (surface-address new-surface) - radius radius radius - (getf color :red) - (getf color :green) - (getf color :blue)) - (setf (surface-shape new-surface) - `((,radius ,radius) ,radius)) - new-surface)) - - -(defun filled-rect (width height &optional (color '(:red 255 :green 255 :blue 255))) - (init-video-mode) - (let ((new-surface (create-surface width height))) - (sge_FilledRect (surface-address new-surface) - 0 0 width height - (getf color :red) - (getf color :green) - (getf color :blue)) - (setf (surface-shape new-surface) - (make-rectangle 0 0 width height)) - new-surface)) - - ;;; TTF Subsystem (defstruct font address) @@ -271,39 +252,24 @@ ;;; Resources Manager -(defstruct resource address free-function object) - -(let ((resources-table (make-hash-table :test 'equal))) - - (defun set-resource (type object &rest key) - (let ((res - (cond ((surface-p object) - (make-resource :address (surface-address object) - :free-function #'SDL_FreeSurface - :object object)) - ((font-p object) - (make-resource :address (font-address object) - :free-function #'TTF_CloseFont - :object object)) - ((cp-space-p object) - (make-resource :address (cp-space-address object) - :free-function #'cpSpaceFree - :object object)) - ((cp-body-p object) - (make-resource :address (cp-body-address object) - :free-function #'cpBodyFree - :object object)) - ((cp-shape-p object) - (make-resource :address (cp-shape-address object) - :free-function #'cpShapeFree - :object object)) - (t nil)))) - (cond (res (setf (gethash `(,type ,@key) resources-table) res))))) - - (defun get-resource (type &rest key) - (let ((resource (gethash `(,type ,@key) resources-table))) +(defstruct resource plist free-function time) +(defstruct texture filename min-filter mag-filter) + +(let ((resources-table (make-hash-table :test 'equalp))) + + (defun set-resource (key plist free-function &key static) + (setf (gethash key resources-table) + (make-resource :plist plist + :free-function free-function + :time (if static -1 (SDL_GetTicks))))) + + (defun get-resource (key) + (let ((resource (gethash key resources-table))) (cond ((null resource) nil) - (t (resource-object resource))))) + (t (cond ((/= (resource-time resource) -1) + (setf (resource-time resource) (SDL_GetTicks)) + (setf (gethash key resources-table) resource))) + (resource-plist resource))))) (defun free-all-resources () (maphash (lambda (key res) (funcall (resource-free-function res) (resource-address res))) @@ -321,18 +287,6 @@ ;;; GaCeLa Functions -;(defun game-loop (code) -; (process-events) -; (cond ((quit?) nil) -; (t -; (glClear (+ GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT)) -; (glLoadIdentity) -; (translate 0 0 *zoom*) -; (funcall code) -; (SDL_GL_SwapBuffers) -; (SDL_Delay (- *gacela-freq* (rem (SDL_GetTicks) *gacela-freq*))) -; (game-loop code)))) - (let (commands) (defun prog-command (command) (setq commands (cons command commands))) @@ -347,34 +301,35 @@ (eval (read-from-string (concatenate 'string "(progn " (car comlst) ")"))))))) (run-com running))))))) +(let (time (time-per-frame (/ 1000.0 *frames-per-second*))) + (defun set-frames-per-second (fps) + (setq time-per-frame (/ 1000.0 fps))) + + (defun init-frame-time () + (setq time (SDL_GetTicks))) + + (defun delay-frame () + (let ((frame-time (- (SDL_GetTicks) time))) + (cond ((< frame-time time-per-frame) + (SDL_Delay (- time-per-frame frame-time))))))) + + (defmacro run-game (title &body code) `(progn (init-video-mode) (SDL_WM_SetCaption ,title "") + (init-frame-time) (process-events) (do () ((quit?)) (glClear (+ GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT)) (glLoadIdentity) - (translate 0 0 *zoom*) ,@code (SDL_GL_SwapBuffers) - (SDL_Delay (- *gacela-freq* (rem (SDL_GetTicks) *gacela-freq*))) + (delay-frame) + (init-frame-time) (process-events) (setq running nil)))) -;(defun run-game () -; (init-video-mode) -; (SDL_WM_SetCaption *title-screen* "") -; (refresh-active-procs) -; (enjoy!) -; (do () ((quit?)) -; (process-events) -; (logic-procs) -; (motion-procs) -; (refresh-active-procs) -; (refresh-screen) -; (SDL_Delay (- *gacela-freq* (rem (SDL_GetTicks) *gacela-freq*))))) - (defun quit-game () ; (free-all-resources) ; (quit-audio)