private void OnTriggerEnter(Collider other)
        {
            Shotgun2 Shotgun = shotgun.GetComponent <Shotgun2>();

            if (other.CompareTag("Player") && isTriggerPickup && Shotgun.currentShells != Shotgun.maxShells)
            {
                TakeAmmo();
                AudioSource.PlayClipAtPoint(pickup, transform.position, volume);
            }
        }
        void TakeAmmo()
        {
            Shotgun2 Shotgun = shotgun.GetComponent <Shotgun2>();

            Shotgun.currentShells += quantity;
            if (Shotgun.currentShells > Shotgun.maxShells)
            {
                Shotgun.currentShells = Shotgun.maxShells;
            }
            Shotgun.SetUI();
            Destroy(gameObject);
        }