movement

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

public class Movement_1 : MonoBehaviour
{
    public Transform player_camera, center_point;

    KeyCode moveF;
    KeyCode moveB;
    KeyCode moveR;
    KeyCode moveL;

    float zoom;
    float mouseX;
    float mouseY;

    Vector3 moveFB;
    Vector3 moveRL;

    public float acc, speed, max_speed;

    Rigidbody rb;


    private void Start()
    {
        moveF = KeyCode.W;
        moveB = KeyCode.S;
        moveR = KeyCode.D;
        moveL = KeyCode.A;

        zoom = -5f;
        player_camera.transform.position = new Vector3(0, 2, zoom);

        mouseX = 0;
        mouseY = 0;
        moveFB = new Vector3(0, 0, acc);
        moveRL = new Vector3(acc, 0, 0);

        rb = GetComponent<Rigidbody>();
    }

    void FixedUpdate()
    {
        mouseX += Input.GetAxis("Mouse X");
        mouseY -= Input.GetAxis("Mouse Y");

        mouseY = Mathf.Clamp(mouseY, 0f, 50f);
        center_point.localRotation = Quaternion.Euler(mouseY, 0, 0);



        if (Input.GetKey(moveF))
        {
            if (rb.velocity.magnitude < speed)
            {
                rb.AddRelativeForce(Vector3.forward + moveFB);
            }
        }
        else if (Input.GetKey(moveB))
        {
            if (rb.velocity.magnitude < speed)
            {
                rb.AddRelativeForce(Vector3.forward - moveFB);
            }
        }

        if (Input.GetKey(moveR))
        {
            if (rb.velocity.magnitude < speed)
            {
                rb.AddRelativeForce(Vector3.forward + moveRL);
            }
        }
        else if (Input.GetKey(moveL))
        {
            if (rb.velocity.magnitude < speed)
            {
                rb.AddRelativeForce(Vector3.forward - moveRL);
            }
        }

        transform.localRotation = Quaternion.Euler(0, mouseX, 0);
        Debug.Log($"velocita'  {rb.velocity.magnitude}");

    }
}