From: Patrik Gornicz <Gornicz.P@gmail.com>
Date: Fri, 22 Aug 2008 01:32:16 +0000 (-0400)
Subject: added rolling times
X-Git-Tag: physics-premerge~140
X-Git-Url: http://gitweb.pgornicz.com/gitweb.cgi?a=commitdiff_plain;h=d279b77b8130a56b4687b7f0702389ddc73941ac;p=libbear.git

added rolling times
---

diff --git a/src/main.cpp b/src/main.cpp
index d8ca3e1..228c238 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -61,7 +61,7 @@ bool is_Running;
  * draw_Count  := counts this seconds draws
  * last_Second := stores the time of the last second, used for ups and fps
  */
-int target_UPS = 250;
+int target_UPS = 100;
 long int last_Block_Update;
 float update_Sum = 0;
 
@@ -70,6 +70,16 @@ int update_Count, draw_Count;
 long int last_Second;
 
 
+float target_time_steps_per_second = 100;
+
+
+// experiment with rolling averages
+float rUpdate = 100;
+float rDraw = 100;
+float rRun = 100;
+float num = 10;
+
+
 /// ***** MAIN Method *****
 int main()
 {
@@ -123,9 +133,17 @@ void run()
 
     while(is_Running)
     {
-        blockUpdate();
-        updateFPSCounters();
-        draw();
+        long int time;
+
+        time = tickCountMicro();
+            blockUpdate();
+            updateFPSCounters();
+            draw();
+        time = tickCountMicro() - time;
+
+        rRun = (rRun * (num-1) + time) / num;
+
+        cout << "rR:\t" << rRun << endl;
     }
 }
 
@@ -133,6 +151,8 @@ void blockUpdate()
 {
     long int start = tickCountMicro();
 
+    cout << "Block" << endl;
+
     // Calculate the updates that should be run for the next draw
     update_Sum += (start - last_Block_Update) / (1000000 / (float)target_UPS);
 
@@ -150,7 +170,7 @@ void blockUpdate()
         for (int i = 1; i <= iupdate_sum; i++)
         {
             handleInput();
-            update(time_step*i / 1000);
+            update(time_step / 1000);
         }
         // remove the updates that where run from the sum
         update_Sum -= iupdate_sum;
@@ -189,18 +209,37 @@ void handleInput()
 
 void update(float time_step)
 {
+    long int time;
+
     update_Count++;
 
-    game::update(time_step);
+    time = tickCountMicro();
+        game::update(time_step);
+    time = tickCountMicro() - time;
+
+    rUpdate = (rUpdate * (num-1) + time) / num;
+
+    cout << "ru:\t" << rUpdate << endl;
+    cout << "ts:\t" << time_step << endl;
 }
 
 void draw()
 {
+    long int time;
+
     draw_Count++;
 
-    game::draw();
+    time = tickCountMicro();
+        game::draw();
+
+        SDL_GL_SwapBuffers();
+
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+        //SDL_Delay(50);
+    time = tickCountMicro() - time;
 
-    SDL_GL_SwapBuffers();
+    rDraw = (rDraw*(num-1) + time) /num;
 
-    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    cout << "rd:\t" << rDraw << endl;
 }