/// <summary>
/// Moves the lift up and down.
/// </summary>
/// <param name="currentFloor">The current floor of the lift.</param>
public void Move(int currentFloor)
{
PreviousFloor = CurrentFloor;
CurrentFloor = currentFloor;
int nextFloor;
DropPassengers(currentFloor);
if (IsEmpty() && Floors.AreAllDelivered())
{
if (currentFloor > 0)
{
currentFloor--;
nextFloor = currentFloor;
Move(nextFloor);
}
AddHistoryRecord(0);
PrintStatus();
return;
}
PickPassengers(currentFloor);
nextFloor = NextFloor();
PrintStatus();
Move(nextFloor);
}