From b1086c978996e522f133b4c6bdc59c95016eec0a Mon Sep 17 00:00:00 2001
From: tslil clingman <>
Date: Sun, 5 Sep 2021 11:43:38 -0400
Subject: Sprite rendering skeleton!

Except that i'm not satisfied. It would appear that we're computing
various distances more-or-less exactly in the sprite rendering
process, but this is at odds with the walls and floors which -- by
virtue of the linear interpolation garbage -- don't agree about where
things are.

The net result is that there are at least two fudge factors:
- to account to for the incorrect height of the floors i shift the
sprites up by 0.2
- to account for the incorrect wall distances i add 1 to the z_buffer
comparison

These fudges are ugly and empirical.

Still to do: for more than one object we have to sort by distance first!
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