Comment by Waterluvian

Anyone think they can explain this in the source code?

function ziggurat() { return ((Math.random() + Math.random() + Math.random() + Math.random() + Math.random() + Math.random()) - 3) / 3; }

https://github.com/vikrum/kidpix/blob/9385acf5b3f57cdc8c5b3f...