조이스틱 에러

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.UI;

using UnityEngine.EventSystems;

public class vitualJoystick : MonoBehaviour, IDragHandler,IPointerDownHandler,IPointerUpHandler

{

private Image bgImg;

private Image joystckImg;

private Vector3 inputVector;

private void Start()

{

bgImg = GetComponent<Image> ();

joystckImg = transform.GetChild (0).GetComponent<Image> ();

}

public virtual void OnDrag(PointerEventData ped)

{

Vector2 pos;

if (RectTransformUtility.ScreenPointToLocalPointInRectangle (bgImg.rectTransform, ped.position, ped.pressEventCamera, out pos)) {

Debug.Log ("sdf");

}

}

public virtual void OnPointerDown(PointerEventData ped)

{

OnDrag (ped);

}

public virtual void OnPointerUP(PointerEventData ped)

{

}

}

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.UI;

using UnityEngine.EventSystems;

public class vitualJoystick : MonoBehaviour, IDragHandler,IPointerDownHandler

{

private Image bgImg;

private Image joystckImg;

private Vector3 inputVector;

private void Start()

{

bgImg = GetComponent<Image> ();

joystckImg = transform.GetChild (0).GetComponent<Image> ();

}

public virtual void OnDrag(PointerEventData ped)

{

Vector2 pos;

if (RectTransformUtility.ScreenPointToLocalPointInRectangle (bgImg.rectTransform, ped.position, ped.pressEventCamera, out pos)) {

            pos.x = (pos.x / bgImg.rectTransform.sizeDelta.x);

            pos.y = (pos.y / bgImg.rectTransform.sizeDelta.y);

            inputVector = new Vector3(pos.x * 2 + 1, 0, pos.y * 2 - 1);

            Debug.Log(inputVector);

        }

}

public virtual void OnPointerDown(PointerEventData ped)

{

OnDrag (ped);

}

public virtual void OnPointerUP(PointerEventData ped)

{

}

}

조이스틱 에러