public void SetYellow()
{
this.State = LightState.Yellow;
}
public void SetRed()
{
this.State = LightState.Red;
}
public void SetGreen()
{
this.State = LightState.Green;
}
public Light(LightState state)
{
this.State = state;
}
public Light()
{
lightState = new LightOn();
}
public AbstratcLight(LightState state)
{
this.State = state;
}