Untitled

using UnityEngine;

public class SimpleFPSController : MonoBehaviour
{
    public float moveSpeed = 5f; // Movement speed of the player
    public float mouseSensitivity = 2f; // Sensitivity of the mouse movement

    private float verticalRotation = 0f; // Rotation around the X-axis
    private float verticalRotationLimit = 80f; // Limit to how much you can look up and down

    void Update()
    {
        // Handle mouse rotation
        float horizontalRotation = Input.GetAxis("Mouse X") * mouseSensitivity;
        transform.Rotate(0, horizontalRotation, 0);

        verticalRotation -= Input.GetAxis("Mouse Y") * mouseSensitivity;
        verticalRotation = Mathf.Clamp(verticalRotation, -verticalRotationLimit, verticalRotationLimit);
        Camera.main.transform.localRotation = Quaternion.Euler(verticalRotation, 0, 0);

        // Handle movement
        float forwardMovement = Input.GetAxis("Vertical") * moveSpeed;
        float strafeMovement = Input.GetAxis("Horizontal") * moveSpeed;

        Vector3 movement = new Vector3(strafeMovement, 0, forwardMovement);
        movement = transform.rotation * movement;

        transform.Translate(movement * Time.deltaTime, Space.World);
    }
}