public static void SetDifficulty(string name)
 {
     foreach (GamePlayConstants gameplayConstants in gameplayConstantsCollection)
     {
         if (gameplayConstants.difficultyName == name)
         {
             Debug.Log("Set the GamePlayConstants to " + name);
             instance = gameplayConstants;
             return;
         }
     }
 }
    void DropdownValueChanged(Dropdown dropdown)
    {
        //string difficultyName = change.value as string;
        string difficultyName = GamePlayConstants.Difficulties[dropdown.value];

        if (difficultyName != null)
        {
            GamePlayConstants.SetDifficulty(difficultyName);
        }
        else
        {
            Debug.LogWarning("The dropdown value is not a string");
        }
    }