C# Xna - Ett objekt ska vara "true" under 60 sekunder.

        long elapsed;
        long minutes;
        long seconds;

        protected override void Initialize()
        {
            elapsed = 0;
            minutes = 0;
            seconds = 0;
            base.Initialize();
        }

        protected override void Update(GameTime gameTime)
        {
            this.Window.Title = "Elapsed Time: " + minutes + "m " + seconds + "s";

            elapsed += gameTime.ElapsedGameTime.Milliseconds;
            if (elapsed >= 1000)
            {
                elapsed = 0;
                seconds++;
                if (seconds == 60)
                {
                    seconds = 0;
                    minutes++;
                }
            }

            base.Update(gameTime);
        }