.col() and .offset() impls for TileTypes - and some more sprites in

src/melee_combat_system.rs

@@ -295,7 +295,9 @@ impl<'a> System<'a> for MeleeCombatSystem {
                             );
                         }
                     }
-
+                    // TODO: Take out these animations (and for missing too), and turn
+                    //       them into effects - can use the damage type that gets passed in
+                    //       to determine the effect, colour, etc.
                     let pos = positions.get(wants_melee.target);
                     if let Some(pos) = pos {
                         particle_builder.damage_taken(pos.x, pos.y);