/// <summary>
/// Adds a new Tween.
/// </summary>
/// <param name="t">The Tween to add.</param>
/// <param name="start">If the Tween should call start() immediately.</param>
/// <returns>The added Tween.</returns>
public Tween addTween(Tween t, Boolean start = false)
{
//if (t._parent) throw new Error("Cannot add a Tween object more than once.");
if (t._parent != null)
{
return null;
}
t._parent = this;
t._next = _tween;
if (_tween != null)
{
_tween._prev = t;
}
_tween = t;
if (start)
{
_tween.start();
}
return t;
}
/// <summary>
/// Removes a Tween.
/// </summary>
/// <param name="t">The Tween to remove.</param>
/// <returns>The removed Tween.</returns>
public Tween removeTween(Tween t)
{
if (t._parent != this)
{
throw new Exception("Core object does not contain Tween.");
}
if (t._next != null)
{
t._next._prev = t._prev;
}
if (t._prev != null)
{
t._prev._next = t._next;
}
else
{
_tween = t._next;
}
t._next = t._prev = null;
t._parent = null;
t.active = false;
return t;
}
