com.jme3.anim.tween

Interface Tween

All Superinterfaces:

java.lang.Cloneable

All Known Implementing Classes:

AbstractTween, Action, BaseAction, BlendableAction, BlendAction, ClipAction

public interface Tween
extends java.lang.Cloneable

Represents some action that interpolates across input between 0 and some length value. (For example, movement, rotation, fading.) It's also possible to have zero length 'instant' tweens.

Method Summary

Modifier and Type	Method and Description
double	getLength() Returns the length of the tween.
boolean	interpolate(double t) Sets the implementation specific interpolation to the specified 'tween' value as a value in the range from 0 to getLength().

Method Detail

getLength

double getLength()

Returns the length of the tween. If 't' represents time in seconds then this is the notional time in seconds that the tween will run. Note: all the caveats are because tweens may be externally scaled in such a way that 't' no longer represents actual time.

Returns:

the duration (in de-scaled seconds)

interpolate

boolean interpolate(double t)

Sets the implementation specific interpolation to the specified 'tween' value as a value in the range from 0 to getLength(). If the value is greater or equal to getLength() then it is internally clamped and the method returns false. If 't' is still in the tween's range then this method returns true.

Parameters:

t - animation time (in de-scaled seconds)

Returns:

true if t>length(), otherwise false