bool Playback::HasEndReached() const
{
if (IsForward())
return (AreFramesChrono() ? frame >= lastFrame : frame <= lastFrame);
else
return (AreFramesChrono() ? frame <= firstFrame : frame >= firstFrame);
}
void Playback::SetNextFrame(FrameIndex nextFrameIndex)
{
if (IsForward())
nextFrame = nextFrameIndex;
else
frame = nextFrameIndex;
}
void Playback::SetNextFrame()
{
/* Set next frame index depending on playback chronology */
if (IsForward())
nextFrame = (AreFramesChrono() ? frame + 1 : frame - 1);
else
frame = (AreFramesChrono() ? frame - 1 : frame + 1);
}
void Playback::Update(Gs::Real deltaTime)
{
/* Check if playback is currently being played */
if (GetState() != State::Playing || deltaTime <= Gs::Real(0))
return;
/* Increase frame interpolator */
interpolator += (deltaTime * speed);
if (IsForward())
{
/* Post event for each animation frame */
while (interpolator >= Gs::Real(1))
{
/* Set current frame to the next frame */
interpolator -= Gs::Real(1);
frame = nextFrame;
/* Get next frame by event listener */
PostNextFrame();
}
}
else
{
/* Post event for each animation frame */
while (interpolator <= Gs::Real(0))
{
/* Set current frame to the next frame */
interpolator += Gs::Real(1);
nextFrame = frame;
/* Get next frame by event listener */
PostNextFrame();
}
}
}
bool FCurveSequence::IsAtEnd( ) const
{
return ( IsForward() == true && IsPlaying() == false && !bIsLooping );
}
