Collision Detection!

[Dameria]

I have been hearing a lot about collision detection and how it is so hard in Alice to make, so I decided to give it a try, and so far I think I have one part down really well in this program.

You move with arrow keys, and for now, if you try to move through the blue wall it will not let you, but as soon as you go to the side of the wall it will let you pass, try it yourself, hope you like it.

I am planning to also implement methods where you cannot go backwards through the wall, or through the sides of the wall, but I have no time right now. Tell me what you think please.

ALICE VERSION 2.2 NEEDED TO VIEW THIS PROGRAM --- USING ALICE 2.0 WILL PRODUCE AN ERROR
If this program produces an error for you, please use x2495iiii's version below, although you will only be able to move forward