It started from an idea I got on the bus and I thought this was the best opportunity to try something unusual and that may be very bad.

Here is some kind of diagram I had to make, you can probably understand why I needed this.

Graphics will be bad, so I don’t want to show them now ^^ I went for the “4 colors” thing, just to have an excuse to make bad graphics ! I think that’s the only thing from the MiniLD post that I followed (except the “do what you want” part, obviously !)