Changeset 3289

Timestamp:

Jul 14, 2009, 10:09:12 AM (15 years ago)

Author:

scheusso

Message:

a fix in Clock (more ogre-overflow safe now)
moved framerate control from gsdedicated to game
desired framerate can be controlled by config value FPSLimit_ (in the Game class) now

Location:

code/branches/netp6/src

Files:

• core/Clock.cc (modified) (2 diffs)
• core/Game.cc (modified) (3 diffs)
• core/Game.h (modified) (1 diff)
• orxonox/gamestates/GSDedicated.cc (modified) (2 diffs)
• orxonox/gamestates/GSDedicated.h (modified) (1 diff)

code/branches/netp6/src/core/Clock.cc

@@ -59 +59 @@
         tickDtFloat_ = static_cast<float>(tickDt_) / 1000000.0f;
 
-        if (timersTime > 0x7FFFFFF0)
+        if (timersTime > 0xFFFFFFFF/4)
         {
             // Ogre timer will overflow at 2^32 microseconds if unsigned long is 32 bit
@@ -74 +74 @@
     unsigned long long Clock::getRealMicroseconds() const
     {
-        return this->timer_->getMicroseconds();
+        return this->timer_->getMicroseconds() + this->storedTime_;
     }
 }

code/branches/netp6/src/core/Game.cc

@@ -40 +40 @@
 #include "util/Debug.h"
 #include "util/Exception.h"
+#include "util/Sleep.h"
 #include "util/SubString.h"
 #include "Clock.h"
@@ -120 +121 @@
         SetConfigValue(levelName_, "presentation_dm.oxw")
             .description("Sets the preselection of the level in the main menu.");
+      SetConfigValue(FPSLimit_, 50)
+            .description("Sets the desired framerate (0 for no limit).");
     }
 
@@ -156 +159 @@
         while (!this->abort_ && !this->activeStates_.empty())
         {
+            uint64_t currentTime = this->gameClock_->getRealMicroseconds();
+
+            uint64_t nextTickTime = statisticsTickTimes_.back().tickTime + 1000000.f/this->FPSLimit_;
+            if( currentTime < nextTickTime )
+            {
+                usleep( nextTickTime - currentTime );
+                continue;
+            }
             this->gameClock_->capture();
-            uint64_t currentTime = this->gameClock_->getMicroseconds();
 
             // STATISTICS

code/branches/netp6/src/core/Game.h

@@ -131 +131 @@
         unsigned int                    statisticsRefreshCycle_;
         unsigned int                    statisticsAvgLength_;
+        unsigned int                    FPSLimit_;
         std::string                     levelName_;
 

code/branches/netp6/src/orxonox/gamestates/GSDedicated.cc

@@ -58 +58 @@
         : GameState(name)
         , server_(0)
-        , timeSinceLastUpdate_(0)
         , closeThread_(false)
         , cleanLine_(true)
@@ -109 +108 @@
     void GSDedicated::update(const Clock& time)
     {
-        timeSinceLastUpdate_ += time.getDeltaTime();
-        //if (timeSinceLastUpdate_ >= NETWORK_PERIOD)
-        {
-            timeSinceLastUpdate_ -= static_cast<unsigned int>(timeSinceLastUpdate_ / NETWORK_PERIOD) * NETWORK_PERIOD;
-            server_->update(time);
-        }
-        /*else
-        {
-            msleep(static_cast<unsigned int>((NETWORK_PERIOD - timeSinceLastUpdate_)*1000));
-            msleep(static_cast<unsigned int>(NETWORK_PERIOD*1000)); // NOTE: this is to throttle the non-network framerate
-//            COUT(0) << "sleeping for " << (int)((NETWORK_PERIOD - timeSinceLastUpdate_) * 1000 * 1000) << " usec" << endl;
-        }*/
+        server_->update(time);
         processQueue();
         printLine();

code/branches/netp6/src/orxonox/gamestates/GSDedicated.h

@@ -66 +66 @@
         
         Server*                 server_;
-        float                   timeSinceLastUpdate_;
         
         boost::thread           *inputThread_;