/// <summary>
        /// Affiche l'écran sen prendre en compte son animation
        /// </summary>
        /// <param name="screenObject"></param>
        public void ForceDisplay(ScreenObject screenObject)
        {
            if (displayedScreens.Contains(screenObject) || screenObject.IsAppear)
            {
                return;
            }

            displayedScreens.Add(screenObject);
            screenObject.ForceAppear();
            SortScreens();
        }
        public void ForceDisplay(ScreenObject screenObject, int index)
        {
            if (displayedScreens.Contains(screenObject) || screenObject.IsAppear)
            {
                return;
            }

            displayedScreens.Insert(index, screenObject);
            screenObject.ForceAppear();
            SortScreens();
        }