message: Tile
  excavated and connected setters
  thingIsStructure
diff: @@ -31,10 +31,10 @@ public:
  bool bulldozed() const { return index() == 0; }
  bool excavated() const { return mExcavated; }
  - void excavated(bool _b) { mExcavated = _b; }
  + void excavated(bool value) { mExcavated = value; }
  bool connected() const { return mConnected; }
  - void connected(bool _b) { mConnected = _b; }
  + void connected(bool value) { mConnected = value; }
  Thing* thing() { return mThing; }
  @@ -64,7 +64,7 @@ protected:
  friend class StructureManager;
  // Access to this function should be very, very limited.
  - void thingIsStructure(bool _b) { mThingIsStructure = _b; }
  + void thingIsStructure(bool value) { mThingIsStructure = value; }
  private:
  int mIndex = 0; /**< */
  