/// <summary>
/// Update the tweening factor and call the virtual update function.
/// </summary>
protected void DoUpdate()
{
float delta = ignoreTimeScale && !useFixedUpdate ? Time.unscaledDeltaTime : Time.deltaTime;
float time = ignoreTimeScale && !useFixedUpdate ? Time.unscaledTime : Time.time;
if (!mStarted)
{
delta = 0;
mStarted = true;
mStartTime = time + delay;
}
if (time < mStartTime)
{
return;
}
// Advance the sampling factor
mFactor += (duration == 0f) ? 1f : amountPerDelta * delta * timeScale;
// Loop style simply resets the play factor after it exceeds 1.
if (style == Style.Loop)
{
if (mFactor > 1f)
{
mFactor -= Mathf.Floor(mFactor);
}
}
else if (style == Style.PingPong)
{
// Ping-pong style reverses the direction
if (mFactor > 1f)
{
mFactor = 1f - (mFactor - Mathf.Floor(mFactor));
mAmountPerDelta = -mAmountPerDelta;
}
else if (mFactor < 0f)
{
mFactor = -mFactor;
mFactor -= Mathf.Floor(mFactor);
mAmountPerDelta = -mAmountPerDelta;
}
}
// If the factor goes out of range and this is a one-time tweening operation, disable the script
if ((style == Style.Once) && (duration == 0f || mFactor > 1f || mFactor < 0f))
{
mFactor = Mathf.Clamp01(mFactor);
Sample(mFactor, true);
enabled = false;
if (current != this)
{
UITweener before = current;
current = this;
if (onFinished != null)
{
mTemp = onFinished;
onFinished = new List <EventDelegate>();
// Notify the listener delegates
EventDelegate.Execute(mTemp);
// Re-add the previous persistent delegates
for (int i = 0; i < mTemp.Count; ++i)
{
EventDelegate ed = mTemp[i];
if (ed != null && !ed.oneShot)
{
EventDelegate.Add(onFinished, ed, ed.oneShot);
}
}
mTemp = null;
}
// Deprecated legacy functionality support
if (eventReceiver != null && !string.IsNullOrEmpty(callWhenFinished))
{
eventReceiver.SendMessage(callWhenFinished, this, SendMessageOptions.DontRequireReceiver);
}
current = before;
}
}
else
{
Sample(mFactor, false);
}
}