Implementing a gesture

Another type of input that you'll find in mobile games is that of a swipe. This will allow us to use the general movement of the touch to dictate a direction for us to move in. This is usually used to have our players jump from one position to another or move quickly in a certain direction, so we'll go ahead and put that in, instead of our previous movement system:

1. First, in the PlayerBehaviour script, go ahead and add some new variables for us to work with:

    [Header("Swipe Properties")]
    [Tooltip("How far will the player move upon swiping")]
    public float swipeMove = 2f;


    [Tooltip("How far must the player swipe before we will execute the action (in pixel space)")]
    public float minSwipeDistance = 2f;

    /// <summary> 
    /// Stores the starting position of mobile touch events 
    /// </summary> 
    private Vector2 touchStart;

In order to determine whether we are swiping, we will need to first check the start and the end of our movement...