class Person{
    String name;
    int    age;
}

int num_people;
int age_range;
int name_range;

Person[] people;
Person[] original_people;

void setup(){
  size(600,500);
  num_people = 200;
  age_range  = 400;
  name_range = 20;
  
  people = new Person[num_people];
  original_people = new Person[num_people];
  
  for(int i=0; i<num_people; i+=1){
    people[i] = new Person();
    people[i].name = "name" + (int) random(name_range);
    people[i].age  = (int) random(age_range);
    original_people[i] = new Person();
    original_people[i].name = new String(people[i].name);
    original_people[i].age  = people[i].age;
  }
  frameRate(1);
}

void draw(){
   background(127);
   plot(original_people, 25);
   text("original", 10, 100);

   if(frameCount%2==0){
     sortAge(people);
     text("sortAge", 10, 300);
   }else{
     sortname(people);
     text("sortname", 10, 300);
   }
   
   plot(people, 250);
}

void plot(Person[] list, int y){
   stroke(0);
   rect(100,y,400,200);
   for(int i=0; i<list.length; i+=1){
         ellipse(list[i].age+100,y+i,2,2);
   }
}

void sortAge(Person[] people){
  ; // put your code here
}
 
void sortname(Person[] people){
   ; // put your code here
}