Game properties.

[gacela.git] / src / video.scm

diff --git a/src/video.scm b/src/video.scm
index e0b7a6da10823354c930a724a25bae533771dcf9..f9e37f15e8b730736bfe8938b25909e123b0e461 100644 (file)
--- a/src/video.scm
+++ b/src/video.scm
@@ -26,10 +26,13 @@
            get-screen-height
            get-screen-width
            get-screen-bpp
+           set-screen-bpp!
            resize-screen
            quit-video
            clear-screen
            flip-screen
+           set-screen-title!
+           get-screen-title
            set-2d-mode
            set-3d-mode
            3d-mode?
@@ -73,7 +76,7 @@
                          (if (= (assoc-ref info 'hw_available) 0) SDL_SWSURFACE SDL_HWSURFACE)
                          (if (= (assoc-ref info 'blit_hw) 0) 0 SDL_HWACCEL)))
           (set! screen (SDL_SetVideoMode width height bpp flags))
-          (SDL_WM_SetCaption title "")
+          (set-screen-title! title)
           (init-gl)
           (if (eq? mode '3d) (set-3d-mode) (set-2d-mode))))))
 
@@ -86,6 +89,10 @@
 (define (get-screen-bpp)
   (surface-format-BytesPerPixel screen))
 
+(define (set-screen-bpp! bpp)
+  (cond (screen
+        (set! screen (SDL_SetVideoMode (get-screen-width) (get-screen-height) bpp flags)))))
+
 (define (resize-screen width height)
   (cond (screen
         (set! screen (SDL_SetVideoMode width height (get-screen-bpp) flags))
@@ -104,6 +111,16 @@
   (SDL_GL_SwapBuffers))
 
 
+(define screen-title "")
+
+(define (set-screen-title! title)
+  (set! screen-title title)
+  (SDL_WM_SetCaption title ""))
+
+(define (get-screen-title)
+  screen-title)
+
+
 (define mode '2d)
 
 (define (set-2d-mode)
@@ -145,29 +162,22 @@
 
 ;;; Frames per second
 
-(define set-frames-per-second #f)
-(define init-frame-time #f)
-(define get-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! get-frame-time
-;;     (lambda ()
-;;       time))
-
-;;   (set! delay-frame
-;;     (lambda ()
-;;       (let ((frame-time (- (SDL_GetTicks) time)))
-;;         (cond ((< frame-time time-per-frame)
-;;                (SDL_Delay (- time-per-frame frame-time))))))))
+(define time 0)
+(define time-per-frame 50)   ;in ms
+
+(define (set-frames-per-second fps)
+  (set! time-per-frame (/ 1000.0 fps)))
+
+(define (init-frame-time)
+  (set! time (SDL_GetTicks)))
+
+(define (get-frame-time)
+  time)
+
+(define (delay-frame)
+  (let ((frame-time (- (SDL_GetTicks) time)))
+    (cond ((< frame-time time-per-frame)
+          (SDL_Delay (- time-per-frame frame-time))))))
 
 
 ;;; Drawing