void Shoot()
    {
        muzzleFlash.Play();
        gunShot.Play();
        RaycastHit hit;

        if (Physics.Raycast(playerCamera.transform.position, playerCamera.transform.forward, out hit))
        {
            TargetDestroy target = hit.transform.GetComponent <TargetDestroy>();
            if (target != null)
            {
                target.Die();
            }
        }
    }