In our previous episode we used rotation and a while loop to create a pattern. We created and rotated many objects.
In this episode we animate using the rotate() function. On each frame of our animation (each time draw() gets called), we rotate our screen a little bit and then draw a circle. We repeat this over and over, so we see this circles spin around the 0,0 position. When we add some randomness to the size of the circles an interesting pattern appears.