Timer.cpp

Go to the documentation of this file.

#include "Timer.hpp"
 
#include <math.h>
 
#include "Logger.hpp"
 
namespace BARE2D {
 
    Timer::Timer()
    {
        m_frameTime = 0.0;
    }
 
    bool Timer::integrateFrame()
    {
        if(m_frameTime > m_minDeltaTime) {
            m_frameTime -= std::min(m_frameTime, m_minDeltaTime);
            return true;
        } else {
            return false;
        }
    }
 
    double Timer::getDeltaTime()
    {
        return m_minDeltaTime > 1.0/100000.0 ? std::min(m_frameTime, m_minDeltaTime) : m_frameTime;
    }
 
    void Timer::startTimer()
    {
        m_startTime = std::chrono::steady_clock::now();
    }
 
    void Timer::endTimer()
    {
        std::chrono::steady_clock::time_point newTime = std::chrono::steady_clock::now();
        
        double deltaMicroseconds = std::chrono::duration_cast<std::chrono::microseconds>(newTime - m_startTime).count();
        
        // Convert from microseconds to fractional seconds.
        m_frameTime += deltaMicroseconds / 1000000.0;
    }
 
    void Timer::setDeltaTimeLimit(double minDt)
    {
        m_minDeltaTime = minDt;
    }
 
}