I am not sure if had been done before or not. So I made it! I set the passibility on to all four directions, becasue I think it is stupid that you can't walk out of the default. Well now you don't need the default, I made it easier with an auto tile! here it is:
Enjoy! No credit needed!
EDIT: I fixed the corners! So if you downloaded it before, you have a bug on the corners, the updated version is up.
Enjoy! No credit needed!
EDIT: I fixed the corners! So if you downloaded it before, you have a bug on the corners, the updated version is up.