refactor

src/frontend/hud.hpp

@@ -73,7 +73,7 @@ class Hud : public util::ObjectsKeeper {
     Assets* assets;
     std::unique_ptr<Camera> uicamera;
     gui::GUI* gui;
-    LevelFrontend* frontend;
+    LevelFrontend& frontend;
     Player* player;
 
     /// @brief Is any overlay/inventory open
@@ -130,7 +130,7 @@ class Hud : public util::ObjectsKeeper {
     void showExchangeSlot();
     void updateWorldGenDebugVisualization();
 public:
-    Hud(Engine* engine, LevelFrontend* frontend, Player* player);
+    Hud(Engine* engine, LevelFrontend& frontend, Player* player);
     ~Hud();
 
     void update(bool hudVisible);