Передвижение объекта в ограниченном диапазоне

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System;
 
public class Touch2 : MonoBehaviour {
    public float speed = 2.5F;
    public GameObject lup;
    public Text text;
    float minX ,maxX, minY, maxY;
    //private float minX, minY, maxX, maxY;
    void Start(){
        minX = Camera.main.ScreenToWorldPoint(new Vector2(0f, 0f)).x + 0.1f;
        minY = Camera.main.ScreenToWorldPoint(new Vector2(0f, 0f)).y + 0.1f;
        maxX = -minX;
        maxY = -minX;
 
        //lup.GetComponent<Renderer>().enabled = false;
 
    }
    public void Deffault(){
        lup.transform.position = new Vector3(0, 0, 0);
    }
    public void Update(){
        
        if (Input.touchCount > 0 && Input.GetTouch (0).phase == TouchPhase.Moved) {     
            Touch touch = Input.GetTouch (0);
            Vector2 touchDeltaPosition = Input.GetTouch (0).deltaPosition;
            //text.text = "x:" + lup.transform.position.x.ToString () + " " + "y:" + lup.transform.position.y.ToString ();
            if (lup.transform.position.x > minX / 1.39f && lup.transform.position.x < maxX / 1.41f) {
                
                lup.GetComponent<Renderer> ().enabled = true;
                //Vector3 pos = Input.mousePosition;
                //transform.position = pos;
                transform.Translate (touchDeltaPosition.x * speed, touchDeltaPosition.y, 0);
            } else if (lup.transform.position.x < minX / 1.39f || lup.transform.position.x > maxX / 1.41f) {
                transform.Translate (-touchDeltaPosition.x * speed + 0.5f, -touchDeltaPosition.y, 0);
            }
        }
        if (Input.GetTouch (0).phase == TouchPhase.Ended) {
            lup.GetComponent<Renderer>().enabled = false;
            //lup.transform.position = new Vector3(minX*2.0f, maxY/1.5f, 0);
        }
    }
}

....
//get delta
var delta = Input.GetTouch(0).deltaPosition;
//get position
var pos = lup.transform.position;
//add delta with clamp
pos.x = Mathf.Clamp(pos.x + delta.x, minX, maxX);
pos.y = Mathf.Clamp(pos.y + delta.y, minY, maxY);
//set pos
lup.transform.position = pos;
...