/*
  a person generator
*/
public class Generator{
    //Percent chance that a person will be added to the line every minute
    private static final double PERCENT = 0.2;

    //helper function to randomly pick a direction
    private Person newPerson(int time){
        double d = Math.random();
        if(d<0.5)return new Person(0, time);
        return new Person(1, time);
    }

    //addPeople can add people to the queues
    //all newly instatiated People should use the provided time parameter
    public void addPeople(Queue line, int time){
        //for each street we randomly decide to add a Person
        if(Math.random()<Generator.PERCENT)
                line.enqueue(newPerson(time));
    }
}