Did a full code review to identify things to fix and either fixed them or noted BUG where I should come back.

status.txt

@@ -6,6 +6,15 @@ TODAY'S GOAL:
 * Lua integration
 
 TODO:
+* $limit is pointless, just use a constant.
+* Pathing::compute_paths can take a starting level to implement lower directions, or possibly setting a value lower?
+* Pathing::set_target isn't using value, but that implements the above.
+https://www.roguebasin.com/index.php/Dijkstra_Maps_Visualized
+
+* When fighting two enemies with lots of attacks it crashes because one dies and isn't there.  Test by making enemies immortal.
+* LightRender can just use the Dijkstra map paths to calculate light strenght from the point rather than doing the box thing.
+* $paths.$paths is annoying.
+* Format of pre/post in dbc isn't consistent with the rest of the lib but I also maybe don't need the function version?
 * I can do headless windows in renderer for testing.
   - renderer.$window.setVisible(false);
 * Think up an enemy system.