protected override EnemyShip makeEnemyShip(String typeOfShip)
        {
            EnemyShip theEnemyShip = null;

            // If UFO was sent grab use the factory that knows
            // what types of weapons and engines a regular UFO
            // needs. The EnemyShip object is returned & given a name

            if (typeOfShip.Equals("UFO"))
            {
                EnemyShipFactory shipPartsFactory = new UFOEnemyShipFactory();
                theEnemyShip = new UFOEnemyShip(shipPartsFactory);
                theEnemyShip.setName("UFO Grunt Ship");
            }
            else

            // If UFO BOSS was sent grab use the factory that knows
            // what types of weapons and engines a Boss UFO
            // needs. The EnemyShip object is returned & given a name

            if (typeOfShip.Equals("UFO BOSS"))
            {
                EnemyShipFactory shipPartsFactory = new UFOBossEnemyShipFactory();
                theEnemyShip = new UFOBossEnemyShip(shipPartsFactory);
                theEnemyShip.setName("UFO Boss Ship");
            }

            return(theEnemyShip);
        }