unity player controller 3d in csharp

main.cs
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerController : MonoBehaviour
{
    public float speed = 10.0f;
    public float jumpForce = 500.0f;
    Rigidbody rb;

    // Start is called before the first frame update
    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }

    // Update is called once per frame
    void Update()
    {
        // Get input from user for movement
        float moveHorizontal = Input.GetAxis("Horizontal");
        float moveVertical = Input.GetAxis("Vertical");

        // Move the player in the direction of input
        Vector3 movement = new Vector3(moveHorizontal, 0.0f, moveVertical);
        rb.AddForce(movement * speed);

        // Check for jump input
        if (Input.GetButtonDown("Jump"))
        {
            // Add upward force to player
            rb.AddForce(Vector3.up * jumpForce);
        }
    }
}
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