orderevent.cpp

产生一个随机数

#include<iostream.h>
#include"orderEvent.h"
#include<assert.h>
#include"random.h"
#include"event.h"
#include"leaveEvent.h"
#include"storeSimulation.h"
extern storeSimulation store;
orderEvent::orderEvent(unsigned int t,customerGroup* g)
                     :event(t),group(g)
                     {}
void orderEvent::processEvent()
{
     int scoops=group->orderSize();
     cout<<"Customer group of size "<<group->groupsize
         <<" order "<<scoops<<" scoops of icescream at time "
         <<time<<'\n';
     store.order(scoops);
     random   ran;
     event*le=new leaveEvent(ran.between(0,30),group);
     assert(le!=0);
     store.scheduleEvent(le);
}