private void SetupTween(TweenAction tween, int id, float from, float to, float duration, bool pingPong, float waitBetweenTime, TweenAction.TweenMode mode, Action <float> updateCallback, Action readyCallback, Action abortCallback)
{
tween.tweenId = id;
tween.startTime = Time.timeSinceLevelLoad;
tween.duration = duration;
tween.endTime = tween.startTime + tween.duration;
tween.from = from;
tween.to = to;
tween.pingPong = pingPong;
tween.waitBetweenTime = waitBetweenTime;
tween.mode = mode;
tween.updateCallback = updateCallback ?? delegate { };
tween.readyCallback = readyCallback ?? delegate { };
tween.abortCallback = abortCallback ?? delegate { };
tween.UpdateValue(tween.from);
if (gameObject.activeInHierarchy)
{
tween.coroutine = StartCoroutine(TweeningRoutine(tween));
}
else
{
Debug.LogWarning(name + " is not active, aborting the tween.");
tween.Abort();
}
}
private IEnumerator TweeningRoutine(TweenAction tween)
{
tween.isRunning = true;
TweenStarted(this, new EventArg <TweenAction>(tween));
while (true)
{
if (Time.timeSinceLevelLoad >= tween.endTime)
{
tween.UpdateValue(tween.to);
if (tween.pingPong)
{
yield return(new WaitForSeconds(tween.waitBetweenTime));
float previousTarget = tween.to;
tween.to = tween.from;
tween.from = previousTarget;
tween.startTime = Time.timeSinceLevelLoad;
tween.endTime = tween.startTime + tween.duration;
}
else
{
break;
}
}
else
{
tween.lerpTime = Mathf.InverseLerp(tween.startTime, tween.endTime, Time.timeSinceLevelLoad);
float lerp = 0;
switch (tween.mode)
{
case TweenAction.TweenMode.Linear:
lerp = Mathf.Lerp(tween.from, tween.to, tween.lerpTime);
break;
case TweenAction.TweenMode.EaseIn:
lerp = Mathf.Lerp(tween.from, tween.to, EaseIn(tween.lerpTime));
break;
case TweenAction.TweenMode.EaseOut:
lerp = Mathf.Lerp(tween.from, tween.to, EaseOut(tween.lerpTime));
break;
case TweenAction.TweenMode.Exponential:
lerp = Mathf.Lerp(tween.from, tween.to, Exponential(tween.lerpTime));
break;
case TweenAction.TweenMode.Smooth:
lerp = Mathf.Lerp(tween.from, tween.to, SmoothStep(tween.lerpTime));
break;
case TweenAction.TweenMode.Smoother:
lerp = Mathf.Lerp(tween.from, tween.to, SmootherStep(tween.lerpTime));
break;
default: throw new NotImplementedException("TweenMode not implemented.");
}
tween.UpdateValue(lerp);
}
yield return(null);
}
tween.readyCallback();
tween.isRunning = false;
TweenReady(this, new EventArg <TweenAction>(tween));
// Note: do not remove completed tweens, because we lose data (esp. currentValue)
}
