The detection system was a package we imported and kept tinkering with to fit the game. What it essentially does on a base level is allow you to enter symbols into the database under an ID, and then the code uses a mix of stroke count, curvature, number of points, and the general motion of drawing to see which input was the closest to the database. We messed with that so that there's a base level percentage of accuracy the player has to hit to get a drawing right, and we also had to draw several versions of every message so that the judging would be fair and account for the different ways players would draw every message. It was definitely the most challenging part of the game to get working. Also you did in fact get a perfect score, I don't think any of us managed to get a score that high, great job and thanks for playing our game!