A processing implementation of the Serpiente Mágica (Magic Snake, Rubik's snake) 80s toy.
Rubik invented many "mathematical" toys in the eighties. Rubik's cube was the most popular, but Rubik's snake is also common in the hands of today's children. This processing scripts is a demo on how you could use processing to render the Rubik's snake.
This script allows you to use onscreen controls to select a prism and rotate it.