InputController.GetTouchInput C# (CSharp) Méthode

    Vector2 GetTouchInput()
    {
        //Check if Input has registered more than zero touches
        if (Input.touchCount <= 0)
        {
            return Vector2.zero;
        }

        int horizontal = 0;
        int vertical = 0;

        Touch firstTouch = Input.touches[0];

        //Check if the phase of that touch equals Began
        if (firstTouch.phase == TouchPhase.Began)
        {
            //If so, store position of that touch for later calculations
            touchOrigin = firstTouch.position;
        }
        else if (firstTouch.phase == TouchPhase.Ended && touchOrigin.x >= 0)
        {
            Vector2 touchEnd = firstTouch.position;
            float x = touchEnd.x - touchOrigin.x;
            float y = touchEnd.y - touchOrigin.y;

            // Set touchOrigin.x to -1 so that our else if statement will
            // evaluate false and not repeat immediately.
            touchOrigin.x = -1;

            // Check if the difference along the x axis is greater than the
            // difference along the y axis.
            if (Mathf.Abs(x) > Mathf.Abs(y))
            {
                horizontal = x > 0 ? 1 : -1;
            }
            else
            {
                vertical = y > 0 ? 1 : -1;
            }
        }

        return new Vector2(horizontal, vertical);
    }