[Pingus-CVS] r3537 - trunk/pingus/src/screen

[plouj at BerliOS]

Author: plouj
Date: 2007-12-28 05:18:53 +0100 (Fri, 28 Dec 2007)
New Revision: 3537

Modified:
   trunk/pingus/src/screen/screen_manager.cpp
Log:
introduced a temporary variable for storing frame time to avoid problems 
related to large differences in time between lines of code (caused by system 
lag)


Modified: trunk/pingus/src/screen/screen_manager.cpp
===================================================================
--- trunk/pingus/src/screen/screen_manager.cpp  2007-12-28 03:06:07 UTC (rev 
3536)
+++ trunk/pingus/src/screen/screen_manager.cpp  2007-12-28 04:18:53 UTC (rev 
3537)
@@ -147,10 +147,12 @@
          fade_over(last_screen, get_current_screen());
        }
 
+      // save this value because it might change drastically within the if 
statement
+      float current_frame_time = frame_timer.get();
       // cap the framerate at the desired value
-      if (frame_timer.get() < 1 / desired_fps) {
+      if (current_frame_time < 1 / desired_fps) {
        // idle delay to make the frame take as long as we want it to
-       SDL_Delay(static_cast<Uint32>(1000 *((1 / desired_fps) - 
frame_timer.get())));
+       SDL_Delay(static_cast<Uint32>(1000 *((1 / desired_fps) - 
current_frame_time)));
       }
     }