ImagesCollide looked like I wanted, but I want it so that rather than stopping you from moving further into the tree when you collide with it, but rather preventing you from walking any closer to a tree if that would cause a collision.
In other words, rather than smacking into a wall and unable to go any further, I'd like to stop before the wall because otherwise I will smack into it.
In other words, rather than smacking into a wall and unable to go any further, I'd like to stop before the wall because otherwise I will smack into it.