private void OnTriggerEnter(Collider other)
    {
        if (other.gameObject.tag == "OutZone")
        {
            Death();
        }

        else if (other.GetComponent <PowerUpType>())
        {
            if (other.GetComponent <PowerUpType>().state == PowerupType.COIN)
            {
                Destroy(other.gameObject);
                scoreScript.AddScore(5);
            }
            else if (other.GetComponent <PowerUpType>().state == PowerupType.AMMO)
            {
                Destroy(other.gameObject);
                powerUpScript.AddAmmo();
            }
            else if (other.GetComponent <PowerUpType>().state == PowerupType.SLOW)
            {
                Destroy(other.gameObject);
                powerUpScript.SlowMotion();
            }
        }
    }