Tween Engines.... They needed?

[Sparticus007]

Hey all,

In the past, I have always animated objects using an Enter Frame event (ie. slide it 5 pixels to the right every frame).

I am seeing many companies I work at using the TweenLite tweening engine to animate objects.

Is there some special magic these tweening engines do that makes them better?

If I wanted to side a ball across the screen over a time span of 100 frames, would using an Enter Frame be any different than using the tween engine? Or would they have the exact same result?

Thanks

P.S. I am aware that tweening engines have other special things (easing, etc). This is assuming we don't need those.

[jAQUAN]

All libraries add file size so one should consider that before using them. TweenLite/Max have a pretty good plug in architecture so you save on the size for features you don't need. A tween is really just (destination - start) * time so for simple things you can probably skip em. If you're doing a lot of animation and need things to change speed over time you can either implement easing equations yourself or just use an engine.

Keep in mind TweenLite has a license and may or may not be right for your project. eaze has a different license.