Pause.Update C# (CSharp) Method

    void Update ()
    {
        if (!busy && (Input.GetKeyDown(KeyCode.Escape) || Input.GetKeyDown(KeyCode.P)))
        {
            // Prevent input until transitioning is over
            busy = true;
            paused = !paused;
            if (paused)
                StartCoroutine(_TransitionIn());
            else
                StartCoroutine(_TransitionOut());
        }
    }

        /// <summary>
        /// Allows the game to run logic such as updating the world,
        /// checking for collisions, gathering input, and playing audio.
        /// </summary>
        /// <param name="gameTime">Provides a snapshot of timing values.</param>
        protected override void Update(GameTime gameTime)
        {
            //check for input
            background.Update(gameTime);
            //get input
            float[] R = new float[9];
            SensorManager.GetRotationMatrix(R, null, Activity1.accelValues, Activity1.magnetoValues);
            float[] orientation = new float[9];
            SensorManager.GetOrientation(R, orientation);
            float roll = (float)Java.Lang.Math.ToDegrees(orientation[2]);

            touchCollection = TouchPanel.GetState();
            TouchLocation[] touches = new TouchLocation[touchCollection.Count];
            for (int i = 0; i < touchCollection.Count; i++)
            {
                touches[i] = new TouchLocation(touchCollection[i].Id, touchCollection[i].State, touchCollection[i].Position * Game1.screenSize / new Vector2(Window.ClientBounds.Width, Window.ClientBounds.Height));
            }

            switch (state)
            {
            case GameState.Start:
                startScreen.Update(touches, Window);
                break;

            case GameState.Playing:
                level.Update(gameTime, touches, roll);
                pauseScreen.Update(touches, Window);
                break;

            case GameState.End:
                endScreen.Update(touches, Window); break;
            }
        }