person.cpp

这是C＋＋编程经典的书上实例的源代码。 （英文名是《C＋＋ how to program》第3版）

// person.cpp
// Member function definitions for class Person.
#include <iostream>

using std::cout;
using std::endl;

#include "person.h"
#include "floor.h"
#include "elevator.h"

// initialize static member personCount
int Person::personCount = 0;

Person::Person( const int destFloor ) // constructor
   : ID( ++personCount ), destinationFloor( destFloor ) 
{}

Person::~Person() // destructor
{
   cout << "person " << ID << " exits simulation on floor "
        << destinationFloor << " (person destructor invoked)"
        << endl;
}

int Person::getID() const { return ID; } // get the ID

// person walks onto a floor
void Person::stepOntoFloor( Floor& floor )  
{
   // notify floor a person is coming
   cout << "person " << ID << " steps onto floor " 
        << floor.getNumber() << endl;
   floor.personArrives( this );

   // press button on the floor
   cout << "person " << ID 
        << " presses floor button on floor " 
        << floor.getNumber() << endl;
   floor.floorButton.pressButton();
}

// person enters elevator
void Person::enterElevator( Elevator &elevator, Floor &floor ) 
{   
   floor.personBoardingElevator();   // person leaves floor

   elevator.passengerEnters( this ); // person enters elevator

   // press button on elevator
   cout << "person " << ID 
        << " presses elevator button" << endl;
   elevator.elevatorButton.pressButton();
}

// person exits elevator
void Person::exitElevator( 
   const Floor &floor, Elevator &elevator ) const
{
   cout << "person " << ID << " exits elevator on floor "
        << floor.getNumber() << endl;
   elevator.passengerExits();
}

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 * (C) Copyright 2000 by Deitel & Associates, Inc. and Prentice Hall.     *
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