Shooting

using UnityEngine;
using System.Collections;
using System.Threading;


public class Shooting : MonoBehaviour {

    public GameObject bullet; // defining objecst here
    public GameObject gun;
    public Ppauser pauzer;
    AudioSource shoots;
    public float speed = 30f;
    public float timer  = 0.0f;
    public float maxtimer = 0.5f;



    void Start ()
    {

        Cursor.visible = false;
        Cursor.lockState = CursorLockMode.Locked;
        shoots = GetComponent<AudioSource>();

    }

    void FixedUpdate ()
    {

        timer += Time.deltaTime;

        if (Input.GetMouseButtonDown(0) && pauzer.paused == false && timer >= maxtimer)
        {
            shoots.Play();
            timer = 0.0f;
            GameObject shooted = Instantiate(bullet, transform.position, transform.rotation) as GameObject;

            Rigidbody rbb = shooted.GetComponent<Rigidbody>();
            rbb.AddForce(shooted.transform.forward * speed);
        }
    }


}