Timer.cpp

/***************************************************************************
 *                                                                         *
 *   (c) Art Tevs, MPI Informatik Saarbruecken                             *
 *       mailto: <tevs@mpi-sb.mpg.de>                                      *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

//----------------------------------------------------------------------------------
// Includes
//----------------------------------------------------------------------------------
#include "Timer.h"


namespace nrEngine{
        
        //------------------------------------------------------------------------
        Timer::Timer(Clock& clock): _clock(clock){
                
                // unpause the timer and set default scaling
                setPause(false);
                setScale (1.0f);
                setFixFrameRate(false);
                
                // set default values
                _currentTime = 0;
                _frameTime = 0;
                
        }
                
        //------------------------------------------------------------------------
        Timer::~Timer(){
        
        }
                
        //------------------------------------------------------------------------
        void Timer::notifyTimeObserver(){
                // if there is no pause, so update times
                if (!_bPaused){
                        float32 frameInterval = _bFixFrameRate ? _fixFrameTime : _clock.getFrameInterval();
                        _frameTime = frameInterval * _fScale;
                }else{
                        _frameTime = 0;
                }

                // calculate current time
                _currentTime += _frameTime;
        }
        
        //------------------------------------------------------------------------
        void Timer::setFixFrameRate(bool setFixRate, float32 fixFrameRate){
                _bFixFrameRate = setFixRate;
                _fixFrameTime = 1.0f / fixFrameRate;
        }

        
        //------------------------------------------------------------------------
        float32 Timer::getRealFrameInterval() const
        {
                return _clock.getRealFrameInterval();
        }

}; // end namespace     

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