Check to see if the given Tween instance exists within this Tween Manager.
Will return true as long as the Tween is being processed by this Tween Manager.
Will return false if not present, or has a state of REMOVED or DESTROYED.
| name | type | description |
|---|---|---|
| tween | Phaser.Tweens.Tween |
The Tween instance to check. |
true if the Tween exists within this Tween Manager, otherwise false.