From 62f29c535971a4af5c4a957444a53eb6007b32e3 Mon Sep 17 00:00:00 2001
From: jsancho <devnull@localhost>
Date: Wed, 28 Dec 2011 19:32:05 +0000
Subject: [PATCH] Game properties.

---
 src/events.scm |  4 +--
 src/gacela.scm | 68 ++++++++++++++++++++------------------------------
 src/video.scm  | 19 +++++++++++++-
 3 files changed, 47 insertions(+), 44 deletions(-)

diff --git a/src/events.scm b/src/events.scm
index dfe9e60..fb21d88 100644
--- a/src/events.scm
+++ b/src/events.scm
@@ -18,7 +18,7 @@
 (define-module (gacela events)
   #:use-module (gacela sdl)
   #:export (process-events
-	    quit?
+	    quit-signal?
 	    key?
 	    key-pressed?
 	    key-released?))
@@ -54,7 +54,7 @@
 	   (cond ((= (assoc-ref event 'type) SDL_QUIT) (set! quit-signal #t))))
 	 (process-screen-events (cdr events)))))
 
-(define (quit?)
+(define (quit-signal?)
   quit-signal)
 
 
diff --git a/src/gacela.scm b/src/gacela.scm
index 256e940..86c4605 100644
--- a/src/gacela.scm
+++ b/src/gacela.scm
@@ -22,6 +22,8 @@
   #:use-module (ice-9 optargs)
   #:export (load-texture
 	    load-font
+	    set-game-properties!
+	    get-game-properties
 	    init-gacela
 	    quit-gacela
 	    game-loop
@@ -48,16 +50,6 @@
 	       render-text))
 
 
-;;; Default values for Gacela
-
-(define *title* "Gacela")
-(define *width-screen* 640)
-(define *height-screen* 480)
-(define *bpp-screen* 32)
-(define *frames-per-second* 20)
-(define *mode* '2d)
-
-
 ;;; Resources Cache
 
 (define resources-cache (make-weak-value-hash-table))
@@ -88,37 +80,31 @@
 
 ;;; Game Properties
 
-(define set-game-properties! #f)
-(define get-game-properties #f)
-
-;; (let ((ptitle *title*) (pwidth *width-screen*) (pheight *height-screen*) (pbpp *bpp-screen*) (pfps *frames-per-second*) (pmode *mode*))
-;;   (set! set-game-properties!
-;; 	(lambda* (#:key title width height bpp fps mode)
-;; ;	  (init-video-mode)
-;; 	  (if title
-;; 	      (begin
-;; 		(set! ptitle title)
-;; 		(if (video-mode-on?) (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))
-;; 		(if (video-mode-on?) (resize-screen pwidth pheight pbpp))))
-;; 	  (if fps
-;; 	      (begin
-;; 		(set! pfps fps)
-;; 		(set-frames-per-second fps)))
-;; 	  (if mode
-;; 	      (begin
-;; 		(set! pmode mode)
-;; 		(if (video-mode-on?)
-;; 		    (if (eq? mode '3d) (set-3d-mode) (set-2d-mode)))))
-;; 	  (get-game-properties)))
-
-;;   (set! get-game-properties
-;; 	(lambda ()
-;; 	  `((title . ,ptitle) (width . ,pwidth) (height . ,pheight) (bpp . ,pbpp) (fps . ,pfps) (mode . ,pmode)))))
+(define title "Gacela")
+(define width-screen 640)
+(define height-screen 480)
+(define bpp-screen 32)
+(define frames-per-second 20)
+(define mode '2d)
+
+(define* (set-game-properties! #:key title width height bpp fps mode)
+  (if title
+      (set-screen-title! title))
+  (if 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)))
+	(resize-screen width height)))
+  (if fps
+      (set-frames-per-second fps))
+  (if mode
+      (if (eq? mode '3d) (set-3d-mode) (set-2d-mode)))
+  (get-game-properties))
+
+(define (get-game-properties)
+  `((title . ,(get-screen-title)) (width . ,(get-screen-width)) (height . ,(get-screen-height)) (bpp . ,(get-screen-bpp)) (fps . ,pfps) (mode . ,pmode)))
 
 
 ;;; Main Loop
diff --git a/src/video.scm b/src/video.scm
index 7eda879..f9e37f1 100644
--- 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)
-- 
2.39.2