Enemies now turn into a lootable device witha grave_stone sprite so you know they died. Need to implement noclipping on items with collision.

events.hpp

@@ -3,7 +3,7 @@
 namespace Events {
   enum GUI {
     START, COMBAT, LOOT, DEATH, STAIRS_UP, STAIRS_DOWN, TRAP,
-    COMBAT_START, NO_NEIGHBORS, ATTACK, NOOP
+    COMBAT_START, NO_NEIGHBORS, ATTACK, UPDATE_SPRITE, NOOP
   };
 
   struct Combat {