Hello! I have been looking at Pixi.js for a while, and want to give it a try! While I am learning more and more JavaScript I realize how little I know about it... I would like to try out Pixi.js by building a 360*Movement top down spaceshooter example. And figured I ask a Noob question: Is there some Collision Detection via bounding boxes, rectangles and circles already build in? Since it is using WebGL, am I to understand that things are rendered on Flat 4 vector planes? (I know some ThreeJS, that's why I am asking. I think Play Station 1 games that are in 2D did this, because of how the engine was designed.) Cheers! Hope to have fun here :-)