Hey Guys i just finished the book.
I am now working on a web implementation of some sort of rithmatics game.
Currently I am still working on detecting shapes and improving the drawn image slightly(otherwise it's too hard). Since I am currently travelling I don't have heaps of time but I am working on making it a real thing.
If you want to see the progress check here: hexelena.github.io (it works on mobile devices as well). Pull requests are very welcome.
EDIT: I attached a picture showing the current look of the app. It currently only detects circles and improves them. (Detecting Shapes is a messy art )...
Does anyone of you know how Sanderson is about fan creations? After all it is his IP.