private void prepend(TweenFlowItem item)
{
// early out for invalid items
if (item.tween != null && !item.tween.isValid())
{
return;
}
if (float.IsInfinity(item.duration))
{
Debug.LogError("adding a Tween with infinite iterations to a TweenChain is not permitted");
return;
}
if (item.tween != null)
{
if (item.tween.isReversed != isReversed)
{
Debug.LogError("adding a Tween that doesn't match the isReversed property of the TweenChain is not permitted.");
return;
}
// ensure the tween isnt already live
Go.removeTween(item.tween);
// ensure that the item is marked to play.
item.tween.play();
}
// fix all the start times on our previous chains
foreach (var flowItem in _tweenFlows)
{
flowItem.startTime += item.duration;
}
_tweenFlows.Insert(0, item);
// update the duration and total duration
duration += item.duration;
if (iterations < 0)
{
totalDuration = float.PositiveInfinity;
}
else
{
totalDuration = duration * iterations;
}
}
/// <summary>
/// the item being added already has a start time so no extra parameter is needed
/// </summary>
private void insert(TweenFlowItem item)
{
// early out for invalid items
if (item.tween != null && !item.tween.isValid())
{
return;
}
if (float.IsInfinity(item.duration))
{
Debug.LogError("adding a Tween with infinite iterations to a TweenFlow is not permitted");
return;
}
if (item.tween != null)
{
if (item.tween.isReversed != isReversed)
{
Debug.LogError("adding a Tween that doesn't match the isReversed property of the TweenFlow is not permitted.");
return;
}
// ensure the tween isnt already live
Go.removeTween(item.tween);
// ensure that the item is marked to play.
item.tween.play();
}
// add the item then sort based on startTimes
_tweenFlows.Add(item);
_tweenFlows.Sort((x, y) =>
{
return(x.startTime.CompareTo(y.startTime));
});
duration = Mathf.Max(item.startTime + item.duration, duration);
if (iterations < 0)
{
totalDuration = float.PositiveInfinity;
}
else
{
totalDuration = duration * iterations;
}
}
