square detect

r3wlx

Hi, everyone! I have a question. I´ve been trying for some days to make some moves with Game Salad, but I couldn´t. For example: I have a square on the background and what I want is to draw on it with the finger, so that when I complete the square the program detect if it´s properly drawn or not (If the given lines have been followed correctly).
Thank you very much!