www.pudn.com > simpleraytracer_v1_0.zip > timer.h

/*===================================================================== 
Code By Nicholas Chapman. 
 
  nickamy@paradise.net.nz 
 
You may use this code for any non-commercial project, 
as long as you do not remove this description. 
 
You may *not* use this code for any commercial project. 
=====================================================================*/ 
#ifndef __TIMER_H__ 
#define __TIMER_H__ 
 
 
#include "clock.h" 
#include  
 
class Timer 
{ 
public: 
	inline Timer(); 
	inline ~Timer(); 
 
	inline double getSecondsElapsed() const; 
 
	inline void reset(); 
 
	inline bool isPaused(); 
 
	inline void pause(); 
	inline void unpause(); 
 
private: 
	double last_time_started; 
	double timesofar; 
	bool paused; 
}; 
 
Timer::Timer() 
{ 
	paused = false; 
	last_time_started = getCurTimeRealSec(); 
	timesofar = 0; 
} 
 
Timer::~Timer() 
{} 
 
double Timer::getSecondsElapsed() const 
{ 
	if(paused) 
		return timesofar; 
	else 
		return timesofar + getCurTimeRealSec() - last_time_started; 
 
 
	//return GetCurTimeRealSec() - time_started; 
} 
 
void Timer::reset() 
{ 
	last_time_started = getCurTimeRealSec(); 
	timesofar = 0; 
} 
 
 
bool Timer::isPaused() 
{ 
	return paused; 
} 
 
 
void Timer::pause() 
{ 
	assert(!paused); 
 
	paused = true; 
 
	timesofar += getCurTimeRealSec() - last_time_started; 
} 
 
void Timer::unpause() 
{ 
	assert(paused); 
 
	paused = false; 
 
	last_time_started = getCurTimeRealSec(); 
} 
 
	 
 
 
#endif //__TIMER_H__