public float mouseSensitivity = 100f;

public Transform playerBody;

float xRotation = 0f;

// Start is called before the first frame update

void Start()

{

Cursor.lockState = CursorLockMode.Locked;

}

// Update is called once per frame

void Update()

{

float mouseX = Input.GetAxis("Mouse X") * mouseSensitivity * Time.deltaTime;

float mouseY = Input.GetAxis("Mouse Y") * mouseSensitivity * Time.deltaTime;

xRotation -= mouseY;

xRotation = Mathf.Clamp(xRotation, -90f, 90f);

transform.localRotation = Quaternion.Euler(xRotation, 0f, 0f);

playerBody.Rotate(Vector3.up * mouseX);

}