It's finally done! I figured out how to do the win detection properly, so after that it was easy! (After two failed attempts. You can see the old ones if you like, I still have it in the sprites) Anyway: Use the mouse to place your piece. Red always goes first, then yellow. This is a two player game, so it has no AI. I might make one with an AI sometime soon though!
Credit to @PullJosh for his Connect 4, which inspired me. If you see a circle with an X, the row is full and you cannot place your piece there.
