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


#include <stdlib.h>
#include "ferrysimevent.h"


FerrySimEvent::FerrySimEvent()
{
  time = -1;
  ID = CAR_BOARDING;
  carPtr = NULL;
  ferryPtr = NULL;
}


FerrySimEvent::FerrySimEvent(const int newTime, const EventID newID, 
                             Car *newCarPtr, Ferry *newFerryPtr)
{
  assert(newTime >= 0);
  assert(newCarPtr != NULL || newFerryPtr != NULL);

  time = newTime;
  ID = newID;
  carPtr = newCarPtr;
  ferryPtr = newFerryPtr;
}


int
FerrySimEvent::compare(const FerrySimEvent &otherEvent) const
{
  if (getTime() < otherEvent.getTime()) {
    return -1;
  } else if (getTime() > otherEvent.getTime()) {
    return 1;
  }

  // times equal; tiebreak by ID
  if (getID() < otherEvent.getID()) {
    return -1;
  } else if (getID() > otherEvent.getID()) {
    return 1;
  }

  // times and IDs must match
  return 0;
}