alien-infinite/animation.cpp at master · Kert/alien-infinite · GitHub

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#include "animation.h"

Animation anim_player;

Animation::Animation()
{
    CurrentFrame    = 0;
    MaxFrames       = 0;
    FrameInc        = 1;

    FrameRate       = 100; //Milliseconds
    OldTime         = 0;

    Oscillate       = false;
}

void Animation::Animate()
{
    if(OldTime + FrameRate > SDL_GetTicks())
	{
        return;
    }

    OldTime = SDL_GetTicks();

    CurrentFrame += FrameInc;

    if(Oscillate)
	{
        if(FrameInc > 0)
		{
            if(CurrentFrame >= MaxFrames)
			{
                FrameInc = -FrameInc;
            }
        }
		else
		{
            if(CurrentFrame <= 0)
			{
                FrameInc = -FrameInc;
            }
        }
    }
	else
	{
        if(CurrentFrame >= MaxFrames)
		{
            CurrentFrame = 0;
        }
    }
}

void Animation::SetFrameRate(int Rate)
{
    FrameRate = Rate;
}

void Animation::SetCurrentFrame(int Frame)
{
    if(Frame < 0 || Frame >= MaxFrames) return;

    CurrentFrame = Frame;
}

int Animation::GetCurrentFrame()
{
    return CurrentFrame;
}