Hello everyone, i've found a script that makes my object draggable. The problem is that i want the object to be dragged only in a certain space in the screen. For example on the x - Axis : -2.2f and 2.2f

I've modified the script but when i touch the object it goes to the bottom of the screen. Can you tell me what am i doing wrong ? It's my first time working with Touch input.

Here is my code :

 using UnityEngine;
 using System.Collections;
 
 public class Drag2 : MonoBehaviour {
     private float dist;
     private bool dragging = false;
     private Vector3 offset;
     private Transform toDrag;
     
     void Update() {
         Vector3 v3;
         
         if (Input.touchCount != 1) {
             dragging = false; 
             return;
         }
         
         Touch touch = Input.touches[0];
         Vector3 pos = touch.position;
         
         if(touch.phase == TouchPhase.Began) {
             RaycastHit hit;
             Ray ray = Camera.main.ScreenPointToRay(pos); 
             if(Physics.Raycast(ray, out hit) && (hit.collider.tag == "Draggable"))
             {
                 toDrag = hit.transform;
                 dist = hit.transform.position.z - Camera.main.transform.position.z;
                 v3 = new Vector3(pos.x, pos.y, dist);
                 v3 = Camera.main.ScreenToWorldPoint(v3);
                 offset = toDrag.position - v3;
                 dragging = true;
             }
         }
         if (dragging && touch.phase == TouchPhase.Moved) {
 /// Here i try to clamp my values
             float testx = Mathf.Clamp(Input.mousePosition.x, -2.2f, 2.2f);
             float testy = Mathf.Clamp(Input.mousePosition.y, -2.2f, 2.2f);
             v3 = new Vector3(testx, testy, dist);
             v3 = Camera.main.ScreenToWorldPoint(v3);
             toDrag.position = v3 + offset;
 ////////////////////////////////////////////////////
         }
         if (dragging && (touch.phase == TouchPhase.Ended || touch.phase == TouchPhase.Canceled)) {
             dragging = false;
         }
     }
 }