// car.h
// ----------------------------------------------------------------------
//
// CSE 143
// Homework 4
// http://www.cs.washington.edu/education/courses/143/00su/homework/
// 21 Jul 2000, Ken Yasuhara


#ifndef _CAR_H_
#define _CAR_H_


#include <assert.h>


// doesn't include driver; see getPassengerCount() below
const int MAX_PASSENGERS_PER_CAR = 3;


class Car {
public:
  Car(const int newArrivalTime, const int newPassengerCount);

  // returns # passengers in this car; doesn't include driver, i.e.
  // # people in car is getPassengerCount() + 1
  int getPassengerCount() const { return passengerCount; }

  // returns time at which this car arrived, i.e. entered the 
  // ticketing queue
  int getArrivalTime() const { return arrivalTime; }

  // marks this car as having been issued a ticket; called when car
  // leaves ticketing queue; must not call more than once on any
  // given car
  void issueTicket();

  // returns true iff this car has been ticketed
  bool isTicketed() const { return ticketed; }

  // marks this car as having been boarded, i.e. loaded onto the
  // ferry currently docked; must be ticketed first, must not call 
  // more than once on any given car
  void board();

  // returns true iff this car has been loaded onto a ferry
  bool isBoarded() const { return boarded; }

  // returns int uniquely identifying this car; mostly for testing
  int getInstanceID() const { return instanceID; }

  // writes car data to cout; for testing
  void print() const;
  
private:
  // disallow default construction, copy construction, assignment,
  // not only in client code, but also inside methods
  Car() { assert(false); }
  Car(const Car &otherCar) { assert(false); }
  Car &operator=(const Car &otherCar) { assert(false); return *this; }

  //
  // internal representation
  //

  int passengerCount;
  int arrivalTime;
  bool ticketed;      // These two are
  bool boarded;       // initially false.

  // assigned at construction
  int instanceID;

  // class static member; number of instances constructed
  // Don't worry if you don't understand this.
  static int instanceCount;
};


#endif // _CAR_H_