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


#ifndef _FERRY_H_
#define _FERRY_H_

#include <assert.h>
#include "car.h"


class Ferry {
public:
  Ferry(const int arrivalTime, const int timeBetweenArrivals,
        const int carCapacity, const int personCapacity);

  // return max. number of cars/people this ferry can carry
  int getCarCapacity() const { return carCapacity; }
  int getPersonCapacity() const { return personCapacity; }

  // return number of additional cars/people this ferry can carry;
  // counts go down as boarding progresses via method board
  int getRemainingCarCapacity() const 
    { return getCarCapacity() - carCount; } 
  int getRemainingPersonCapacity() const 
    { return getPersonCapacity() - personCount; }

  // returns time at which this ferry arrived at the dock
  int getArrivalTime() const { return arrivalTime; }

  // returns the time interval between consecutive landings of this
  // ferry line
  int getTimeBetweenArrivals() const { return timeBetweenArrivals; }

  // returns true iff given car and its passengers can fit 
  bool canFit(const Car *carPtr) const;

  // records boarding of this car and its passengers; returns false
  // if there isn't enough room 
  bool board(const Car *carPtr);

private:
  // disallow default construction, copy construction, assignment,
  // not only in client code, but also inside methods
  Ferry() { assert(false); }
  Ferry(const Ferry &otherFerry) { assert(false); }
  Ferry &operator=(const Ferry &otherFerry) 
    { assert(false); return *this; }

  int carCapacity, carCount;
  int personCapacity, personCount;
  int arrivalTime, timeBetweenArrivals;
};


#endif // _FERRY_H_