Don't forget to love-it! Curious how this project works? Find out here: http://scratch.mit.edu/forums/viewtopic.php?id=35318 Edit: That link no longer appears to work since the move to Scratch 2.0, but you can read BoltBait's summary of the same concepts here: http://scratch.mit.edu/discuss/topic/7160/ Before we begin, I'd like to give a big thank-you to AddZero, who helped me quite a bit in making the project work online and gave me a few suggestions on how to make it slightly more human-friendly. This pathing AI Will always find it's way from point A to point B in the least number of turns. There will be a small wait of about 5 seconds after you place your obstacles. INSTRUCTIONS: Press the green flag and place walls by clicking on squares. If you put one down accidentally, hold Zero and click it again to delete it. Press space to put down a goal and the starting point. If you download, you can control how fast the square moves with a variable called "wait."