Fixed issue with double initalization

Engine/headers/game.h

@@ -11,7 +11,6 @@
 
 static int curX, curY;
 
-extern bool isActive;
 extern std::vector<std::vector<Room>> rooms;
 
 #define MAP_HEIGHT 5
@@ -26,7 +25,9 @@ private:
     nlohmann::json json;
     fs::path filePath = "Resources/Rooms.json";
     std::ifstream stream;
- 
+    bool isActive;
+
+
     inline static Game *game_;
 
 
@@ -36,7 +37,7 @@ private:
 
 public:
     Game();
-    static bool GetIsActive() { return isActive; }
+    inline bool GetIsActive() const { return isActive; }
     bool Init();
     void Run();
     bool Save();
@@ -44,7 +45,18 @@ public:
     void ChangeRoom(Room r);
     Room GetCurrentRoom() { return currentRoom; }
 
-    static void SetIsActive(const bool active) { isActive = active; }
+    inline bool operator!() const {
+        if (isActive) {
+            return false;
+        }
+        return true;
+    }
+
+    void SetIsActive(const bool active) { isActive = active; }
+
+    static void SetGameInstance(Game * g) {
+        game_ = g;
+    }
 
     static Game &Instance() {
         if (game_ == nullptr) {