Our hero can walk around the world and won't go through walls.

map.hpp

@@ -59,11 +59,15 @@ public:
   int limit() { return m_limit; }
   size_t width() { return m_walls[0].size(); }
   size_t height() { return m_walls.size(); }
+  Room &room(size_t at) {
+    return m_rooms[at];
+  }
 
   void make_room(size_t origin_y, size_t origin_x, size_t width, size_t height);
 
   void add_door(Room &room);
   bool inmap(size_t x, size_t y);
+  bool iswall(size_t x, size_t y);
   bool neighbors(Point &out, bool up);
   void generate();
   void place_rooms(Room &root);