From: Patrik Gornicz <Gornicz.P@gmail.com>
Date: Fri, 22 Aug 2008 14:52:58 +0000 (-0400)
Subject: time step fixed
X-Git-Tag: physics-premerge~136
X-Git-Url: http://gitweb.pgornicz.com/gitweb.cgi?a=commitdiff_plain;h=2ea1d2d42976f924508c086f1f9e4c773417d06c;p=libbear.git

time step fixed
---

diff --git a/src/main.cpp b/src/main.cpp
index 8c3134b..01afeaa 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -65,7 +65,7 @@ int target_UPS = 100;
 long int last_Block_Update;
 float update_Sum = 0;
 
-int ups, fps;
+int ups =100, fps=100;
 int update_Count, draw_Count;
 long int last_Second;
 
@@ -158,11 +158,12 @@ void run()
 void blockUpdate()
 {
     long int start = tickCountMicro();
+    long int diff = start - last_Block_Update;
 
     //cout << "Block" << endl;
 
     // Calculate the updates that should be run for the next draw
-    update_Sum += (start - last_Block_Update) / (1000000 / (float)target_UPS);
+    update_Sum += diff / (1000000 / (float)target_UPS);
 
     // insures the float to int cast is done once.
     int iupdate_sum = (int)update_Sum;
@@ -172,10 +173,13 @@ void blockUpdate()
     {
         // Calculate a time step that spreads the updates out as much as possible
         // used because really quick updates are nearly wasted
-        float time_step = ((float)(start - last_Block_Update)) / iupdate_sum / 1000;
+
+        //float time_step = ((float)diff) / iupdate_sum / 1000;
+        //float time_step = 1000 / (100000 / rUpdate) / iupdate_sum;
+        float time_step = 10;
 
         // run the updates
-        for (int i = 1; i <= iupdate_sum; i++)
+        for (int i = 0; i < iupdate_sum; i++)
         {
             handleInput();
             update(time_step);
@@ -258,7 +262,7 @@ void draw()
 
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
-//        SDL_Delay(20);
+//        SDL_Delay(10);
     time = tickCountMicro() - time;
 
     rDraw = (rDraw*(num-1) + time) /num;