Hypongtrochoid

Try it online @ catseye.tc | See also: Kolakoski Kurve ∘ Erratic Turtle Graphics ∘ Maze Clouds

This is a gewgaw composed at Cat's Eye Technologies circa 2013. Each box moves with a constant velocity relative to the box it is contained in, and bounces around inside it in a simple fashion. Yet the path traced out by the innermost box is not very simple at all.

The name "hypongtrochoid" is a portmanteau of hypotrochoidᵂᴾ (as popularized by Spirographᵂᴾ) and Pongᵂᴾ (as popularized by, well, Pong.)

The first implementation of Hypongtrochoid (which we will call version 1.0) was located in the HTML5 Gewgaws distribution. The current version found in this repository (which we will call version 1.1 or later) has had several improvements made to it:

• It has been adapted to use DAM.
• A bug in toggling the visibility of the path has been fixed.