Colly is a simple to use and optimized library for detecting and handling AABB collision.
This fork is a Unity C# port of the tileworld part of colly.
Colly.GridWorld should be used for tile-based worlds.
Colly works the same way as the main fork, just with c# syntax, it shouldn't be that hard to work out (hopefully)
A couple of things i haven't used have been left out, but they should be simple to add back in, also a couple of things are slightly different for my project.
What i'm saying is, use this as a base, i am just chucking it on here.
Colly is licensed under MIT license. See LICENSE for more details.