/// <summary>
        /// Initializing the screen (adding all items, and registering as observer)
        /// </summary>
        public override void Initialize()
        {
            base.Initialize();
            int currentSoundFXVolume = (int)(m_SoundManager.SoundFXVolume * k_VolumeChangeValue);
            int currentMusicVolume = (int)(m_SoundManager.MusicVolume * k_VolumeChangeValue);

            m_SoundEffetsVolumeItem = new OptionsMenuItem(
                                            Game,
                                            m_EffectVolumeTexts,
                                            currentSoundFXVolume,
                                            m_SoundEffetsVolumeItem_Modified);
            m_MusicVolumeItem = new OptionsMenuItem(
                                    Game,
                                    m_MusicVolumeTexts,
                                    currentMusicVolume,
                                    m_MusicVolumeItem_Modified);
            m_ToggleSoundItem = new OptionsMenuItem(
                                    Game,
                                    new List<string>(k_ToggleSoundText),
                                    m_ToggleSoundItem_Modified);
            m_DoneItem = new MenuItem(Game, "Done", m_DoneItem_Executed);

            Add(m_SoundEffetsVolumeItem);
            Add(m_MusicVolumeItem);
            Add(m_ToggleSoundItem);
            Add(m_DoneItem);
        }
        /// <summary>
        /// Adds all items to menu
        /// </summary>
        public override void Initialize()
        {
            base.Initialize();
            m_PlayersMenuItem = new OptionsMenuItem(
                                    Game,
                                    new List<string>(m_PlayersText),
                                    m_PlayersItem_Modified);

            m_DisplayOptionsItem = new MenuItem(Game, "Screen Options", displayOptionsItem_Executed);
            m_SoundOptionsItem = new MenuItem(Game, "Sound Options", soundOptionsItem_Executed);
            m_PlayItem = new MenuItem(Game, "Play", playItem_Executed);
            m_QuitItem = new MenuItem(Game, "Quit", quitItem_Executed);

            Add(m_PlayersMenuItem);
            Add(m_DisplayOptionsItem);
            Add(m_SoundOptionsItem);
            Add(m_PlayItem);
            Add(m_QuitItem);
        }