spieleprogrammierer.de - Forum und Wiki zur Spieleprogrammierung und Spieleentwicklung

C-/C++-Quelltext

void CApplication::Run()
{
  // Als erstes das Fenster erstellen

  CMainWindow mainWindow(800,600,m_bFullScreen);

    MSG Message;
    Message.message = (~WM_QUIT);
    DWORD dwNextDeadLine = GetTickCount() + FRAME_TIME;
    DWORD dwSleep = FRAME_TIME; // FRAME_TIME als "75" definiert

    bool bUpdate = false;

  //Schleife, bis eine Nachricht WM_QUIT erhalten wird, also das Fenster

  // zu schließen

    while (Message.message != WM_QUIT)
    {
    // Wait until a message comes in or until the timeout expires. The

    // timeout is recalculated so that this function will return at

    // least every FRAME_TIME msec.

    DWORD dwResult = MsgWaitForMultipleObjectsEx(0,NULL,dwSleep,QS_ALLEVENTS,0);
    if (dwResult != WAIT_TIMEOUT)
    {
      // If the function returned with no timeout, it means that at 

      // least one message has been received, so process all of them.

      while (PeekMessage(&Message, NULL, 0, 0, PM_REMOVE))
      {
        // If a message was waiting in the message queue, process it

        TranslateMessage(&Message);
        DispatchMessage(&Message);
      }

      // If the current time is close (or past) to the 

      // deadline, the application should be processed.

      if (GetTickCount() >= dwNextDeadLine)
        bUpdate = true;
      else
        bUpdate = false;
    }
    else
      // On a timeout, the application should be processed.

      bUpdate = true;

    // Check if the application should be processed

    if (bUpdate)
    {
      DWORD dwCurrentTime = GetTickCount();
      // Fenster updaten

      mainWindow.Update(dwCurrentTime);
      // Fenster "zeichnen"

      mainWindow.Draw();

      dwNextDeadLine = dwNextDeadLine + FRAME_TIME;
    }

    // Process the sleep time, which is the difference

    // between the current time and the next deadline.

    dwSleep =  dwNextDeadLine - GetCurrentTime();
    // If the sleep time is larger than the frame time,

    // it probably means that the processing was stopped 

    // (e.g. the window was being moved,...), so recalculate

    // the next deadline.

    if (dwSleep>FRAME_TIME)
    {
      dwSleep = FRAME_TIME;
      dwNextDeadLine = GetCurrentTime() + FRAME_TIME;
    }
  }
}

C-/C++-Quelltext

    Message.message = (~WM_QUIT);