Movement

[RequireComponent(typeof(CharacterController))]
public class MovementHero : MonoBehaviour
{
    [Header("Скорость персонажа")]
    [Range(0.5f, 35)]
    public float SpeedMovement = 1f;

    [Header("Чувствительность мыши")]
    [Range(0.1f, 1f)]
    public float Sensivity = 1f;

    [Header("Минимальный угол просмотра")]
    [Range(0f, -120f)]
    public float YMinLimit = -45f;

    [Header("Максимальный угол просмотра")]
    [Range(120f, 0f)]
    public float YMaxLimit = 45f;

    [Header("Сила гравитации")]
    public float GlobalGravity = 9.81f;

    [Header("Максимальная дистанция от земли")]
    public float MaxDistance = 0f;

    CharacterController movementController;
    Transform mainCamera;

    float xRotate, yRotate = 0f;

    private void Start()
    {
        movementController = gameObject.GetComponent<CharacterController>();
        mainCamera = Camera.main.transform;

        // Lock the cursor
        Cursor.lockState = CursorLockMode.Locked;
        Cursor.visible = false;
    }

    private void FixedUpdate()
    {
        float horizontal = Input.GetAxis("Horizontal");
        float vertical = Input.GetAxis("Vertical");

        Vector3 direction = new Vector3(horizontal, 0, vertical);

        movementController.Move(direction * SpeedMovement * Time.fixedDeltaTime);
    }

    private void Update()
    {
        Vector3 mousePos = Input.mousePosition;
        float kefAngel = ((Screen.width - mousePos.x) / Screen.width);

        kefAngel = kefAngel < 0 ? kefAngel * 2 : kefAngel;
        kefAngel = Mathf.Clamp(kefAngel, -1, 1); // Normalize

        xRotate = mousePos.y * Sensivity * 0.15f;
        xRotate = Mathf.Clamp(xRotate, YMinLimit, YMaxLimit);

        yRotate = 360 * kefAngel * Sensivity;

        transform.rotation = Quaternion.Euler(0, -yRotate, 0);
        mainCamera.rotation = Quaternion.Euler(-xRotate, yRotate, 0);
    }
}