/*
* When the airplane has arrived at parking spot, start disembarking
* which means opening the door and starting the Disembarking() procedure
*/
public void AddPassengers()
{
passengers = PassengerController.GetOutgoingPassengers(this);
incomingPassengers = PassengerController.GetIncomingPassengers(this);
outgoingPassengers = passengers; // because they are currently in the airplane, until they exit
}