public static void Initialize()
    {
        mapSizeMax         = 25;
        mapSizeMaxUnlocked = 5;
        mapSizeCurrent     = mapSizeMaxUnlocked;

        maxEnemyUnlock = 6;
        difficulty     = Mathf.Clamp(10, 0, 10);

        currentTimeHours = 0;
        UpdateElapsedTime();

        currentRequirementProgress = new Requirements();
        currentRequirementProgress.FullInitialize();
    }