So I need help with 4 things.

1. Do player/ enemy collision with rocks

2. Make enemies at random spots

3. Make enemies move once toward the player every move

4. Make a random map out of 8 maps

Plz comment on how to do stuff and please make it simple for me. I dont care about tokens

Yay! This is my second game. I'm a new programmer, so I'm looking for feedback. Thanks!
EDIT: P.S. If the lines variable down below is bigger than 4800, then it will get slow. If it does that, reset the cart
EDIT: Ok the mouse is freakin awesome