Hello,   I've just found Pixi and I think it's a really good library.   I'm writing a small open source html5 videogame library that wraps around Box2D.js. I've decided to use Pixi.js to do the rendering process.   One of the problems that I've been having with the library is that the MovieClip constructor doesn't satisfy some of my needs, which are: Easily have multiple sprite sequences asociated with one Sprite Being able to indicate a variable step of time to the Sprite, so that, if frame rat