Fix a very nasty bug

TODO.txt

@@ -38,10 +38,6 @@ fuck issue trackers :D
 
 =========== BUGS =================
 
-- on arduinos for some reason straight triangles (floor, walls, ...) on map
-  don't fucking display, they seem to not be added at all, but maybe it's
-  something with the "instability" due to low memory... HOWEVER on ringo (enough
-  mem) it does the same thing, is some kinda shitbug
 - replay loading BUG! somehow map2 replay was saves with hash 05ef0ab1 instead
   of correct 3c5ba5dd once, WTF, check where hash gets modified
 
@@ -84,6 +80,13 @@ fuck issue trackers :D
   theory they should (enough block space to load): try to set the exact same
   settings on PC and see if the maps load or what. IT'S BCS BUILDING THE MAP
   TEMPORARILY REQUIRES MORE BLOCKS
+- on arduinos for some reason straight triangles (floor, walls, ...) on map
+  don't fucking display, they seem to not be added at all, but maybe it's
+  something with the "instability" due to low memory... HOWEVER on ringo (enough
+  mem) it does the same thing, is some kinda shitbug; LOOKS LIKE CULLING MOST
+  LIKELY; it's condition in renderer:824, most likely either a bug in
+  LooksConvex or CoversTri; lmao, had to change char to int in triangle winding,
+  char signedness is unspecified :D
 - should drifting make a sound? NO NEED
 - menu: key repeat?
 - replay validation? maybe yes?