Trigonometry is a tool for animation and of great general utility. With it, you can make a character glow, rotate an image, find the distance between objects and determine whether two objects have collided. It took me a long time to wrap my head around trigonometry. It really isn’t that difficult and once you understand what you can do with it, it becomes a tool in your toolbox you will constantly use.
See the Pen Animating Attributes Using Trigonometry by bitbrainresearch (@jcaldw11) on CodePen.0