Minor rendering corrections
Minor rendering corrections

Somehow, for no discernable reason, the FPS doubled.

There were many lines that, when commented out, bumped the FPS from ~30
to ~60. Some made no sense, like the computation of the "rest" variable,
that is very simple and only done ~800 times per frame. Wall size was
one of them, found by accident.

Thank you, oh powerful Performance God. I shall shave some bits in your
name.

boppreh/room