void FixedUpdate()
{
//Vector3 movement = new Vector3 (joystick.Horizontal () * Time.deltaTime, 0.0f, joystick.Vertical() * Time.deltaTime);
//rb.AddForce (movement * speed);
this.gameObject.transform.position += this.gameObject.transform.forward * Time.deltaTime * (speed * joystick.Vertical());
this.gameObject.transform.position += this.gameObject.transform.right * Time.deltaTime * (speed * joystick.Horizontal());
}
