/// <summary>
        /// Creates an instance of the Options screen.
        /// </summary>
        /// <param name="screenResolution">Screen resolution used for scaling.</param>
        /// <param name="screenResolutionChanged">True if the screen resolution has changed.</param>
        /// <param name="game">Game1 class passed on to options to allow changing of options.</param>
        /// <param name="director">The director of the game</param>
        public OptionsScreen(Vector2 screenResolution, bool screenResolutionChanged, Game1 game, ref Director director)
            : base(screenResolution)
        {
            // scaling of all positions according to viewport size
            mMenuBoxPosition = new Vector2(mScreenResolution.X / 2 - 306, mScreenResolution.Y / 4);
            mMenuBoxSize     = new Vector2(612, 420);

            mDirector = director;

            GlobalVariables.ChosenResolution =
                GlobalVariables.ResolutionList.IndexOf(new Tuple <int, int>((int)screenResolution.X, (int)screenResolution.Y));

            if (GlobalVariables.ChosenResolution == -1)
            {
                GlobalVariables.ChosenResolution = 0;
            }

            mTabPadding        = 36;
            mContentPadding    = 204;
            mTopContentPadding = mMenuBoxPosition.Y + 84;

            mTextColor = new Color(new Vector3(.9137f, .9058f, .8314f));

            mScreenState = EOptionScreenState.Graphics;
            mGame        = game;

            mMenuOpacity   = screenResolutionChanged ? 1 : 0;
            mWindowOpacity = 1;
        }
 /// <summary>
 /// Handler for the Audio button
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="eventArgs"></param>
 private void OnAudioReleased(Object sender, EventArgs eventArgs)
 {
     mScreenState = EOptionScreenState.Audio;
     mAudioSliders[0].SetSliderPosition(GlobalVariables.MasterVolume);
     mAudioSliders[1].SetSliderPosition(GlobalVariables.MusicVolume / GlobalVariables.MasterVolume);
     mAudioSliders[2].SetSliderPosition(GlobalVariables.EffectsVolume / GlobalVariables.MasterVolume);
     mAudioSliders[3].SetSliderPosition(GlobalVariables.UiVolume / GlobalVariables.MasterVolume);
 }
 /// <summary>
 /// Handler for the Graphics button
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="eventArgs"></param>
 private void OnGraphicsReleased(Object sender, EventArgs eventArgs)
 {
     mScreenState = EOptionScreenState.Graphics;
 }
 /// <summary>
 /// Handler for the Gameplay button
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="eventArgs"></param>
 private void OnGameplayReleased(Object sender, EventArgs eventArgs)
 {
     mScreenState = EOptionScreenState.Gameplay;
 }