Please check this pen instead :
It is more complex !
Uses a pre made image as the background of the canvas element and draws a user defined line pattern over the top. Position of the lines is determined by cursor position.
Using my Particle Swarm Optimization library to perform exotic regressions: https://github.com/kotsoft/psojs
A riff on [a fun beesandbombs gif](https://twitter.com/beesandbombs/status/548662338690498561).
A particle system; behavior based on mouse movements. Depth of color & size will change depending on mouse coordinates.