public static void ShowAlert(string header, string message = null, string footer = "Enter to continue", Action onEnter = null) { if (Ballz.The().MessageOverlay != null) return; MessageOverlay overlay = new MessageOverlay { HeaderText = header, MessageText = message, FooterText = footer }; if (onEnter != null) overlay.OnEnter = onEnter; Ballz.The().MessageOverlay = overlay; } }