
The idea of keeping a few tiles open to serve as passibility control - IOW tiles are either X or O so you can _not walk on them _walk on them is a common idea in parallax mapping.
I guess if you walk under them you just stick those puppies on another layer. =]
I was wondering if people also keep tiles available for directional passibilty.
It just kind of occurred to me. And how do you keep it straight? o_0
