GearVR player movement with touchpad

Hello, I am beginner developer in unity, and I have a problem with touchpad, which I want to use in movement camera. I've read some topics and in all of them offer something like the following code.

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class OVR_PlayerMove : MonoBehaviour
5. {
6.     [SerializeField]
7.     private float velocity = 5.0f;
8.  
9.     private int direction = 100;
10.     private CharacterController controller;
11.     private Transform head;
12.     private Transform body;
13.  
14.     void Start()
15.     {
16.         controller = GetComponent<CharacterController>();
17.         head = Camera.main.transform;
18.         body = transform.Find("Body");
19.     }
20.  
21.     void Update()
22.     {
23.         if (Input.GetMouseButton(0))
24.         {
25.             controller.SimpleMove(head.transform.forward * velocity * direction * Time.deltaTime);
26.             body.transform.rotation = Quaternion.Euler(new Vector3(0.0f, head.transform.eulerAngles.y, 0.0f));
27.         }else
28.         if (Input.GetMouseButtonUp(0) && direction == -100)
29.         {
30.             direction = 100;
31.         }
32.         if (Input.GetMouseButtonDown(0))
33.         {
34.             if (Input.GetAxisRaw("Mouse X") < 0)
35.             {
36.                 direction = -100;
37.             }
38.             else
39.             {
40.                 direction = 100;
41.             }
42.         }
43.     }
44. }

I created a camera and attached this code. When I start the game in Unity, I click the mouse and everything is OK, the camera moves. But when I start the game on the phone, and I click on the touchpad, nothing happens. Maybe someone faced such a problem, or I forgot to set something up?

https://imgur.com/a/U8wBudB - screen with unity

 

The touchpad (I assume you mean on the GearVR controller) is not a mouse.