Easy tweens with TweenLite

TweenLite is a small and fast tweening engine for Flash Player 9 (AS3). TweenLite only adds about 3KB to published .swfs.

Somewhere above your constructor:

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import gs.TweenLite; 
import gs.easing.*;

Basic TweenLite function:

TweenLite.to tweens from an initial point to that point that you define. Position the clip on the stage where/how you want the tween to start.

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TweenLite.to(circle, 1, {x:300, ease:Sine.easeIn}); 
// TweenLite.to(moviecliptotween, timeinsec, { .. properties... });

TweenLite.from does the opposite. Position the clip on the stage where you want the tween to end, and define where/how you want the tween to begin:

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TweenLite.from(circle, 1, {y:300, ease:Sine.easeIn});

Useful notes:

TweenLite has an onComplete function that you can map behaviour to upon finishing a tween.

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TweenLite.to(circle, 1, {onComplete:doneTween};
...
function doneTween():void {
   // finished tween, now do this 
}