how i rotate the player with the joystick i crate

Code (CSharp):

1. sing System.Collections;
2. using System.Collections.Generic;
3. using System.Drawing;
4. using UnityEditor;
5. using UnityEditor.Experimental.GraphView;
6. using UnityEngine;
7.  
8. public class joystick : MonoBehaviour
9.  
10. {
11.     public Transform player;
12.     public float speed;
13.     private bool touchStart = false;
14.     private Vector2 pointA;
15.     private Vector2 pointB;
16.     public Transform circle;
17.     public Transform outerCircle;
18.  
19.  
20.  
21.     // Start is called before the first frame update
22.     void Start()
23.     {
24.        
25.     }
26.  
27.     // Update is called once per frame
28.     void Update()
29.     {
30.         if (Input.GetMouseButtonDown(0))
31.         {
32.             pointA = Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, Camera.main.transform.position.z));
33.             circle.GetComponent<SpriteRenderer>().enabled = true;
34.             outerCircle.GetComponent<SpriteRenderer>().enabled = true;
35.  
36.             circle.transform.position = pointA;
37.             outerCircle.transform.position = pointA;
38.         }
39.  
40.  
41.        
42.  
43.  
44.  
45.         if (Input.GetMouseButton(0))
46.         {
47.             pointB = Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, Camera.main.transform.position.z));
48.             touchStart = true;
49.         }
50.         else
51.         {
52.             touchStart = false;
53.             circle.GetComponent<SpriteRenderer>().enabled = false;
54.             outerCircle.GetComponent<SpriteRenderer>().enabled = false;
55.         }
56.  
57.     }
58.  
59.     private void FixedUpdate()
60.     {
61.         if (touchStart)
62.         {
63.             Vector2 offset = pointB - pointA;
64.             Vector2 direction = Vector2.ClampMagnitude(offset, 1.0f);
65.             movePlayer(direction);
66.             circle.transform.position = new Vector2(pointA.x + direction.x, pointA.y + direction.y);
67.         }
68.        
69.     }
70.     void movePlayer(Vector2 direction)
71.     {
72.         player.Translate(direction * speed * Time.deltaTime);
73.     }
74. }
75.