(cond ((null screen) nil)
(t (SDL_Flip screen))))
- (defun create-surface (width height &key (trans-color *transparent-color*))
- (init-video-mode)
- (let ((new-surface (make-surface
- :address (create-SDL_Surface
- (surface-address screen)
- width
- height
- (getf trans-color :red)
- (getf trans-color :green)
- (getf trans-color :blue)))))
- (set-resource 'image new-surface (gentemp))
- new-surface))
-
- (defun print-surface (x y surface)
- (apply-surface x y surface screen)
- surface)
-
(defun quit-video-mode ()
(setq screen nil)))
(glHint GL_PERSPECTIVE_CORRECTION_HINT GL_NICEST)
t)
-(defun init-textures ()
- (init-video-mode)
- (glEnable GL_TEXTURE_2D))
-
(defun init-lighting ()
(init-video-mode)
(glEnable GL_LIGHTING))
(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)
(lambda (x y) (print-surface x y address-image))
(lambda () (SDL_FreeSurface address-image)))))
-(defun apply-surface (x y source destination)
- (let ((offset (SDL_Rect x y 0 0)))
- (SDL_BlitSurface source 0 destination offset)
- (free offset)
- destination))
-
-(defun apply-surface-old (x y source destination &optional (clip nil))
- (cond ((null clip)
- (apply-surface2 x y (surface-address source) (surface-address destination) 0 0 0 0 0))
- ((integerp clip)
- (apply-surface2 x y (surface-address source) (surface-address destination) 0 0
- (surface-clip-w source) (surface-clip-h source) clip))
- (t
- (apply-surface2 x y (surface-address source) (surface-address destination)
- (first clip) (second clip) (third clip) (fourth clip) 0)))
- destination)
-
-
-(defun print-image (x y image-file &optional (clip nil))
- (init-video-mode)
- (let ((image (load-image image-file)))
- (print-surface x y image clip)
- image))
-
-
(defun clean-screen ()
(fill-screen *background-color*))
(flip))
-;;; TTF Subsystem
-(defstruct font address)
-
-(let ((ttf nil))
-
- (defun init-ttf ()
- (cond ((null ttf) (progn (init-sdl) (setq ttf (TTF_Init))))
- (t ttf)))
-
- (defun quit-ttf ()
- (setq ttf (TTF_Quit))))
-
-
-(defun open-font (font-name tam)
- (init-ttf)
- (let ((font (get-resource 'font font-name tam)))
- (if (null font)
- (progn (setq font (make-font :address (TTF_OpenFont font-name tam)))
- (set-resource 'font font font-name tam)))
- font))
-
-
-(defun render-text (text-message
- &key (color '(:red 255 :green 255 :blue 255))
- (font-name "lazy.ttf") (tam 28))
- (init-ttf)
- (let ((message (get-resource 'text text-message color font-name tam)))
- (if (null message)
- (progn
- (setq message
- (make-surface
- :address (render-text2 (open-font font-name tam)
- text-message
- (getf color :red)
- (getf color :green)
- (getf color :blue))))
- (set-resource 'text message text-message color font-name tam)))
- message))
-
-
-(defun print-text (x y text-message
- &key (color '(:red 255 :green 255 :blue 255))
- (font-name "lazy.ttf") (tam 28))
- (init-video-mode)
- (init-ttf)
- (let ((message (render-text text-message :color color :font-name font-name :tam tam)))
- (print-surface x y message)
- message))
-
-
;;; Audio Subsystem
(let ((audio nil))
;;; Resources Manager
-(defstruct resource address free-function object)
+(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 size encoding)
+ `(:type font :filename ,filename :size ,size :enconding ,encoding))
(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)))
+ (defun set-resource (key plist constructor destructor &key static)
+ (setf (gethash key resources-table)
+ (make-resource :plist plist
+ :constructor constructor
+ :destructor destructor
+ :time (if static t (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-resource (key)
+ (funcall (resource-destructor (gethash key resources-table)))
+ (setf (resource-time (gethash key resources-table)) nil))
(defun free-all-resources ()
- (maphash (lambda (key res) (funcall (resource-free-function res) (resource-address res)))
- resources-table)
- (clrhash resources-table)))
+ (maphash (lambda (key res) (free-resource key)) resources-table)))
;;; Connection with the GUI
;;; 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)))
(eval (read-from-string (concatenate 'string "(progn " (car comlst) ")")))))))
(run-com running)))))))
-(let ((gacela-timer (make-timer)))
- (defun start-gacela-timer () (start-timer gacela-timer))
- (defun get-gacela-time () (get-time gacela-timer)))
+(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?))
- (start-gacela-timer)
(glClear (+ GL_COLOR_BUFFER_BIT GL_DEPTH_BUFFER_BIT))
(glLoadIdentity)
,@code
(SDL_GL_SwapBuffers)
- (let ((frame-time (get-gacela-time)) (time-per-frame (/ 1000.0 *frames-per-second*)))
- (cond ((< frame-time time-per-frame)
- (SDL_Delay (- time-per-frame frame-time)))))
+ (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)
projects / gacela.git / blobdiff