public Device()
{
State = new DeviceIdleState(this);
Door = new Door();
Door.State = new DoorClosedState(Door);
}
public DoorUnlockedState(Door door)
: base(door)
{
}
public DoorOpenState(Door door) : base(door)
{
}
public DoorClosedState(Door door) : base(door)
{
}
protected DoorState(Door door)
{
Door = door;
}