Hi Mozillians, Having logic trouble re: Adding features to our bouncing balls demo. (Re-post from: Introducing JavaScript objects: Assessment: Adding features to our bouncing balls demo Note: I’m trying to figure this out without looking at the solution. So far, I can generate/draw the evil circle on the page; however, when I add the other 3 evil methods (collisionDetect, setControls, checkBounds) the code breaks. More so, my set up for the exist property does not make working sense. Fina......Move the evil Circle with the keyBoard EvilBall.prototype.setControls...mostly in order, although: The keyboard controls don’t work, or are...