Results of today's code review session.

spatialmap.hpp

@@ -0,0 +1,30 @@
+#pragma once
+#include <vector>
+#include <unordered_map>
+#include "map.hpp"
+#include "dinkyecs.hpp"
+#include "point.hpp"
+
+typedef std::vector<DinkyECS::Entity> EntityList;
+
+typedef std::unordered_map<Point, DinkyECS::Entity, PointHash> PointEntityMap;
+
+struct FoundEntities {
+  bool found;
+  EntityList nearby;
+};
+
+class SpatialMap {
+  public:
+    SpatialMap() {}
+
+    void insert(Point pos, DinkyECS::Entity obj);
+    void move(Point from, Point to, DinkyECS::Entity ent);
+    void remove(Point pos);
+    bool occupied(Point pos) const;
+    DinkyECS::Entity get(Point at) const;
+    FoundEntities neighbors(Point position, bool diag=false) const;
+
+  private:
+    PointEntityMap table;
+};