| Interface | Description | 
|---|---|
| ContainsTweens | |
| Tween | 
 Represents some action that interpolates across input between 0
 and some length value. 
 | 
| Class | Description | 
|---|---|
| AbstractTween | 
 Base implementation of the Tween interface that provides
 default implementations of the getLength() and interpolate()
 methods that provide common tween clamping and bounds checking. 
 | 
| Tweens | 
 Static utility methods for creating common generic Tween objects. 
 |