public void Update(float dt)
{
_timer?.UpdateTimer(dt);
}
public void Update(float dt)
{
if (null != _curAnim)
{
int spriteCount = _curAnim.sprites.Count;
// update delay
if (null != _timerDelay)
{
_timerDelay.UpdateTimer(dt);
return;
}
// update timer here
if (!_timer.UpdateTimer(dt))
{
_timer.Reset();
_curIdx = _curIdx + (_isBackwards ? -1 : 1);
// if it should loop...
if (_curAnim.ShouldLoop)
{
// check whether has reached bottom / upper limit
bool hasReachedLimit = _curAnim.pingPong ?
(_isBackwards ? _curIdx < 0 : _curIdx >= spriteCount) : _curIdx >= spriteCount;
// if has reached limit
if (hasReachedLimit)
{
// if pingpong, toggle the backwards flag
// otherwise reset cur idx to 0 again
if (_curAnim.pingPong)
{
_isBackwards = !_isBackwards;
}
else
{
_curIdx = 0;
}
++_counter;
TryInitDelay();
}
}
// make sure the index wont be out of bound
_curIdx = _curIdx.Clamp(0, spriteCount - 1);
}
// check loop count here
bool isDone = false;
bool shouldChangeSprite = false;
if (_curAnim.LoopForever)
{
shouldChangeSprite = true;
}
else
{
if ((_curAnim.ShouldLoop && _counter > _curAnim.loop))
{
isDone = true;
}
else
{
shouldChangeSprite = true;
if (!_curAnim.ShouldLoop && _curIdx == spriteCount - 1)
{
isDone = true;
}
}
}
if (shouldChangeSprite)
{
var curSprite = _curAnim.sprites[_curIdx];
CurSprite?.Invoke(curSprite);
}
if (isDone)
{
_onDone?.Invoke();
_curAnim = null;
}
}
}
