MC Tween is a very easy to use tweening engine. Also a design-oriented flash developer without much Actionscript knowledge can use it. I remember I have used it by myself before I knew the Object Oriented Actionscript programming.

How the tweening engine works is that it extends the functions of the basic MovieClip class. So you can then create a tween in a simple command like this:
myMovieclip.tween("_x", 100);

MC Tween is nice documented and has nice examples on it's homepage. You can also preview the animation types in sample flash movies.

Recently, Zeh Fernando started developing a new tweening engine called Tweener. It is both AS2 and AS3 and I will introduce it in the next article.

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