GameLearning_PlusPlus/CFPS.cpp at master · leenephi/GameLearning_PlusPlus · GitHub

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//=============================================================================
#include "CFPS.h"

//=============================================================================
CFPS CFPS::FPSControl;

//=============================================================================
CFPS::CFPS()
{
    OldTime     = 0;
    LastTime    = 0;

    SpeedFactor	= 0;

    Frames      = 0;
    NumFrames   = 0;
}

//=============================================================================
void CFPS::OnLoop()
{
    if(OldTime + 1000 < SDL_GetTicks())
    {
        OldTime = SDL_GetTicks();

        NumFrames = Frames;

        Frames = 0;
    }

    SpeedFactor = ((SDL_GetTicks() - LastTime) / 1000.0f) * 32.0f;

    LastTime = SDL_GetTicks();

    Frames++;
}

//=============================================================================
const int CFPS::GetFPS()
{
    return NumFrames;
}

//------------------------------------------------------------------------------
const float CFPS::GetSpeedFactor()
{
    return SpeedFactor;
}

//==============================================================================