// Modif gerard de:
// Example 09-02 from "Getting Started with Processing" 
// by Reas & Fry. O'Reilly / Make 2010

/**
 * D'aprés <br>
 * Example 09-02 from "Getting Started with Processing" <br>
 * by Reas & Fry. O'Reilly / Make 2010 <br>
 */

JitterBug bug1, bug2, bug3, bug4, bug5, bug6;

void setup() {
  size(640, 480); // "The size() function must be the first line in setup()"
  // size(screen.width, screen.height);
  background(150, 150, 255);
  smooth();
  fill(255, 255, 255, 3);
  noStroke();
  int Dia = 30;
  bug1 = new JitterBug(width*0.25, height*0.333, Dia);
  bug2 = new JitterBug(width*0.5, height*0.333, Dia);
  bug3 = new JitterBug(width*0.75, height*0.333, Dia);
  bug4 = new JitterBug(width*0.25, height*0.666, Dia);
  bug5 = new JitterBug(width*0.5, height*0.666, Dia);
  bug6 = new JitterBug(width*0.75, height*0.666, Dia);
}

void draw() {
  bug1.move();
  bug1.display();
  bug2.move();
  bug2.display();
  bug3.move();
  bug3.display();
  bug4.move();
  bug4.display();
  bug5.move();
  bug5.display();
  bug6.move();
  bug6.display();
} 

class JitterBug {

  float x;
  float y;
  int diameter;
  float speed = 12;

  JitterBug(float tempX, float tempY, int tempDiameter) {
    x = tempX;
    y = tempY;
    diameter = tempDiameter;
  }

  void move() {
    x += random(-speed, speed);
    y += random(-speed, speed);
  }

  void display() {
    ellipse(x, y, diameter*random(0, 10)/4, diameter*random(0, 10)/4);
  }
}