/// <summary>
/// Handls the logic for looping an animation that is ping-pong
/// animating.
/// </summary>
private void PingPongAnimationLoopCheck()
{
// Check if we are still within the bounds of the animations frames
if (CurrentFrameIndex < CurrentAnimation.From || CurrentFrameIndex > CurrentAnimation.To)
{
// Reverse the direction of the animation
_direction = -_direction;
if (_direction == -1)
{
// We've reached the end frame and reversed direciton, so set hte
// current frame index to one less the last frame
CurrentFrameIndex = CurrentAnimation.To - 1;
}
else if (_direction == 1 && CurrentAnimation.IsOneShot)
{
// We've cycled the animation forward and backwards, and it's a one-shot
// aniamtion, so we set the current frame to the first and stop animating
CurrentFrameIndex = CurrentAnimation.From;
Animating = false;
OnAnimationEnd?.Invoke();
}
else if (_direction == 1)
{
// We've cycled the animation forward and backwards, and it is NOT
// a one-shot animation, so we start it at the beginning + 1
CurrentFrameIndex = CurrentAnimation.From + 1;
// And invoke the OnAnimationLoop action
OnAnimationLoop?.Invoke();
}
}
}
/// <summary>
/// Handles the logic for looping an animation that is animating
/// in a reverse direction.
/// </summary>
private void ReverseAnimationLoopCheck()
{
// Chck that we are still within the bounds of the animation's frames
if (CurrentFrameIndex < CurrentAnimation.From)
{
// Check if this is a one-shot animation
if (CurrentAnimation.IsOneShot)
{
// It's one-shot, set hte current frame to the first and stop animating
CurrentFrameIndex = CurrentAnimation.From;
Animating = false;
OnAnimationEnd?.Invoke();
}
else
{
// Otherwise we loop the animation back to the end
CurrentFrameIndex = CurrentAnimation.To;
// Since we looped, invoke the OnAnimationLoop action
OnAnimationLoop?.Invoke();
}
}
}
/// <summary>
/// Handles the logic for looping an animation that is animating
/// in a foward direciton.
/// </summary>
private void ForwardAnimationLoopCheck()
{
// Check that we are still within the bounds of the animation's frames
if (CurrentFrameIndex > CurrentAnimation.To)
{
// Check if this is a one-shot animation
if (CurrentAnimation.IsOneShot)
{
// It's one-shot, set current frame to last and stop animating
CurrentFrameIndex = CurrentAnimation.To;
Animating = false;
OnAnimationEnd?.Invoke();
}
else
{
// Otherwise we loop the animation back to the beginning
CurrentFrameIndex = CurrentAnimation.From;
// Since we looped, invoke the OnAnimationLoop action
OnAnimationLoop?.Invoke();
}
}
}