Sprite tile maps on the GPUI had a fun idea yesterday while playing (what else) Spelunky and decided I'd give it a go. The result is this demo, which I'm reasonably proud of despite it's simplicity. I know it doesn't look all that impressive, after all the SNES was doing that kind of stuff a long way back and they didn't need any fancy WebGL to do it. Heck, even a rudimentary HTML Canvas renderer can get similar results, so
