Refactor the light calculations to be part of map instead of spread out all over. Still need to bring back lighting on walls and also pathing for enemies is currently busted.

lights.hpp

@@ -0,0 +1,30 @@
+#pragma once
+#include <array>
+#include "dbc.hpp"
+#include "point.hpp"
+#include <algorithm>
+#include "map.hpp"
+
+namespace lighting {
+
+  struct LightSource {
+    int strength = 0;  // lower is better
+    int distance = 1;  // higher is farther, in squares
+  };
+
+  const int MIN = 40;
+  const int MAX = 220;
+
+  const std::array<int, 10> LEVELS{
+    MAX,
+    200,
+    180,
+    160,
+    140,
+    120,
+    100,
+    80,
+    60,
+    MIN,
+  };
+}