How can I make joystick for my game?

News & General Discussion
1

I am making a 3D game. I want also to port it to Android and IOS. So for smartphones I will need on-screen controller. My character actually can only walk and jump, so i need joystick and button. Here’s my script that works with keyboard :

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerController : MonoBehaviour
{
    public float moveSpeed;
    public float jumpForce;
    public CharacterController controller;
    private Vector3 moveDirection;
    public float gravityScale;
    // Start is called before the first frame update
    void Start()
    {
       
        controller = GetComponent<CharacterController>();
    }

    // Update is called once per frame
    void Update()
    {
       
        float yStore = moveDirection.y;
       
        moveDirection = (transform.forward * Input.GetAxisRaw("Vertical") ) + (transform.right * Input.GetAxisRaw("Horizontal") );
        moveDirection = moveDirection.normalized * moveSpeed;
        moveDirection.y = yStore;
        if (controller.isGrounded)
        {


            moveDirection.y = 0f;
            if (Input.GetButtonDown("Jump"))
            {
                moveDirection.y = jumpForce;
            }

        }
            moveDirection.y = moveDirection.y + (Physics.gravity.y * gravityScale * Time.deltaTime);
            controller.Move(moveDirection * Time.deltaTime);

       
    }
}
2

Googling for “Unity 3d mobile input joystick” results in more than one tutorial.