模拟电梯管理系统c++源代码（只提供代码部分）

//// Member->function definition for class Elevator #include <iostream> using namespace std; #include "elevator.h" //Elevator class definition #include "person.h" //Person class definition #include "floor.h" //Floor class definition //constants that represent time required to travel //between floors and direction of the elevator const int Elevator::ELEVATOR_TRAVEL_TIME = 5; const int Elevator::UP = 0; const int Elevator::DOWN = 1; //constructor Elevator::Elevator( Floor &firstFloor, Floor &secondFloor) : elevatorButton( * this ), currentBuildingClockTime( 0 ), moving( false ), direction( UP ), currentFloor( Floor::FLOOR1 ), arrivalTime( 0 ), floor1NeedsService( false ), floor2NeedsService( false ), floor1Ref( firstFloor ), floor2Ref( secondFloor ), passengerPtr( 0 ) { cout << "elevator constrcuted" <<endl; }// end Elevator constructor //destructor Elevator::~Elevator() { delete passengerPtr; cout << "elevator destructed" << endl; }//end Elevator destructor //give time to elevator void Elevator::processTime( int time ) { currentBuildingClockTime = time; if ( moving ) //elevator is moving processPossibleArrival(); else processPossibleDeparture(); if ( !moving ) cout << "elevator at rest on floor " << currentFloor << endl; }// end function processTime // when elevator is moving, determine if it should stop void Elevator::processPossibleArrival() { //if elevator arrives at destination floor if ( currentBuildingClockTime == arrivalTime ) { currentFloor = ( currentFloor == Floor::FLOOR1 ? Floor::FLOOR2 : Floor::FLOOR1); //update current floor direction = ( currentFloor == Floor::FLOOR1 ? UP : DOWN ); //update direction cout << "elevator arrives on floor " << currentFloor <<endl; // process arrival at currentFloor arriveAtFloor( currentFloor == Floor::FLOOR1 ? floor1Ref : floor2Ref); return; }//end if //elevator still moving cout << "elevator moving " << ( direction == UP ? "UP" : "DOWN" ) << endl; }// end function processPossibleArrival //determine whether elevator should move void Elevator::processPossibleDeparture() { //this floor needs service? bool currentFloorNeedsService = currentFloor == Floor::FLOOR1 ? floor1NeedsService : floor2NeedsService; // other floor needs service? bool otherFloorNeedsService = currentFloor == Floor::FLOOR1 ? floor2NeedsService : floor1NeedsService; //service this floor ( if needed ) if ( currentFloorNeedsService ) { arriveAtFloor( currentFloor == Floor::FLOOR1 ? floor1Ref : floor2Ref); return; } //service other floor ( if needed ) if ( otherFloorNeedsService ) prepareToLeave( true ); }// end function processPossibleDeparture //arrive at a particular floor void Elevator::arriveAtFloor( Floor &arrivalFloor ) { moving = false; // reset state cout << "elevator resets its button" <<endl; elevatorButton.resetButton(); bell.ringBell(); //notify floor that elevator has arrived Person * floorPersonPtr = arrivalFloor.elevatorArrived(); door.openDoor( passengerPtr, floorPersonPtr, arrivalFloor, *this ); // this floor needs service? bool currentFloorNeedsService = currentFloor == Floor::FLOOR1 ? floor1NeedsService : floor2NeedsService; // other floor needs service? bool otherFloorNeedsService = currentFloor == Floor::FLOOR1 ? floor2NeedsService : floor1NeedsService; //if this floor does not need service, prepare to leave for the other floor if ( !currentFloorNeedsService ) prepareToLeave( otherFloorNeedsService ); else // otherwise, reset service flag currentFloor == Floor::FLOOR1 ? floor1NeedsService = false: floor2NeedsService = false; }// end function arriveAtFloor //request service from elevator void Elevator::summonElevator( int floor ) { //set appropriate servicing flag floor == Floor::FLOOR1 ? floor1NeedsService = true: floor2NeedsService = true; }// end function summonElevator // accept a passenger void Elevator::passengerEnters( Person * const personPtr ) { //board passenger passengerPtr = personPtr; cout << "person " << passengerPtr->getID() << " enters elevator from floor " << currentFloor << endl; }//end function passengerEnters //notify elevator that passenger is exiting void Elevator::passengerExits() { passengerPtr = 0; } // end function passengerExits // prepare to leave a floor void Elevator::prepareToLeave( bool leaving ) { // get reference to current floor Floor &thisFloor = currentFloor == Floor::FLOOR1 ? floor1Ref : floor2Ref; //notify floor that elevator may be leaving thisFloor.elevatorLeaving(); door.closeDoor( thisFloor ); if ( leaving ) //leave, if necessary move(); }// end function prepareToLeave // go to other floor void Elevator::move() { moving = true; //change state // schedule arrival time arrivalTime = currentBuildingClockTime + ELEVATOR_TRAVEL_TIME; cout << "elevator begins moving " << ( direction == DOWN ? "down " : "up ") << "to floor " << ( direction == DOWN ? '1' : '2') << " (arrives at time " << arrivalTime << ')' << endl; }// end function move