I have this Drag script it works fine but i want it so when you click and drag it follows the mouse like a trail instead of being underneath it, can someone help me please thanks.

using UnityEngine; using System.Collections;

[RequireComponent(typeof(BoxCollider2D))]

public class Drag : MonoBehaviour { private Vector3 screenPoint; private Vector3 offset;

 void OnMouseDown() {

     offset = gameObject.transform.position - Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, screenPoint.z));
 }
 
 void OnMouseDrag()
 {
     Vector3 curScreenPoint = new Vector3(Input.mousePosition.x, Input.mousePosition.y, screenPoint.z);
     Vector3 curPosition = Camera.main.ScreenToWorldPoint(curScreenPoint) + offset;
     transform.position = curPosition;
 } 

}