Status: New
Owner: ----
Labels: Type-Enhancement Priority-Medium Effort-Medium OpSys-All

New issue 107 by heuermh: Improve interpolating activities with other  
easing functions
http://code.google.com/p/piccolo2d/issues/detail?id=107

PInterpolatingActivity has only one easing mode, setSlowInSlowOut.  Several
other easing interpolation functions exist, such as those made familiar by
Robert Penner:

http://www.robertpenner.com/easing

E.g.

linear
ease-in-quadratic
ease-out-quadratic
ease-in-out-quadratic
ease-in-cubic
ease-out-cubic
ease-in-out-cubic
ease-in-quartic
ease-out-quartic
ease-in-out-quartic
ease-in-quintic
ease-out-quintic
ease-in-out-quintic
ease-in-sine
ease-out-sine
ease-in-out-sine
ease-in-exponential
ease-out-exponential
ease-in-out-exponential
ease-in-circular
ease-out-circular
ease-in-out-circular
ease-in-elastic
ease-out-elastic
ease-in-out-elastic
ease-in-back
ease-out-back
ease-in-out-back
ease-in-bounce
ease-out-bounce
ease-in-out-bounce

It should be possible to plug any of these easing interpolation functions
into PInterpolatingActivity, a subclass of PInterpolatingActivity, or a new
interpolating subclass of PActivity.

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