예제 #1
0
        public void TurnOnGreen()
        {
            if (!IsPresent())
            {
                return;
            }

            greenLight.TurnOn();
        }
예제 #2
0
        public void TurnOnRed()
        {
            if (!IsPresent())
            {
                return;
            }

            redLight.TurnOn();
        }
예제 #3
0
        public void TurnOnYellow()
        {
            if (!IsPresent())
            {
                return;
            }

            yellowLight.TurnOn();
        }