Packman myPackman1;

Packman myPackman2;

Packman myPackman3;

void setup(){

  size(640, 480);

  myPackman1 = new Packman(color(255, 0, 0), 0, 100, 50, 1, 1);

  myPackman2 = new Packman(color(0, 255, 0), 0, 200, 50, 2, 2);

  myPackman3 = new Packman(color(0, 0, 255), 0, 300, 50, 3, 3);

}

void draw(){

  background(0);

  myPackman1.display();

  myPackman1.move();

  myPackman2.display();

  myPackman2.move();

  myPackman3.display();

  myPackman3.move();

}

class Packman {

  color c;

  float x;

  float y;

  float size;

  float xspeed;

  float yspeed;

  Packman(color tempC, float tempX, float tempY, float tempS, float tempXs, float tempYs){

    c = tempC;

    x = tempX;

    y = tempY;

    size = tempS;

    xspeed = tempXs;

    yspeed = tempYs;

  }

void display(){

  noStroke();

  fill(c); 

  if(frameCount % 20 < 10){

    arc(x, y, size, size, 0.5, 5.78);

  } else {

    arc(x, y, size, size, 0.1, 6.18);    

  } 

}

void move(){

  x = x + xspeed; 

  y = y + yspeed;

  if(x < 0 || x > width){

    xspeed= -xspeed;   

  }

  if(y < 0 || y > height){

    yspeed = -yspeed;   

  }

}

}