Don't_know

int ballX,  ballY;

int speed, speed1;

int ballX2, ballY2;

int ballX3, ballY3;

int speed2,  speed3;

int speed4, speed5;

int value;

​

​

void setup (){

  size (500, 500);

  ballX = 200;

  ballY = 150;

  ballX2 = 100;

  ballY2 = 200;

  ballX3 = 300;

  ballY3 = 190;

  speed = 8;

  speed1= 6;

  speed2= 4;

  speed3= 3; 

  speed4= 2;

  speed5= 2;

}

​

​

void draw (){

  moveBall();

  moveBall();

   moveBall();

  moveBall();

}

   void moveBall (){

     background(200);

  if (ballX > 500 || ballX < 0){

    speed = speed * (-1);

  }

  if (ballY >500 || ballY < 0) {

    speed1 = speed1 * (-1);

  }

  if (ballX2 > 500 || ballX2 < 0){

    speed2 = speed2 * (-1);

  }

  if (ballY2 > 500 || ballY2 < 0) {

    speed3 = speed3 * (-1);

  }

  if (ballX3 > 500 || ballX3 < 0){

    speed4 = speed4 * (-1);

  }

  if (ballY3 > 500 || ballY3 < 0) {

    speed5 = speed5 * (-1);

  }

    ballX= ballX + speed;

    ballY= ballY + speed1;

    ballX2 = ballX2 +speed2;

    ballY2 = ballY2 +speed3;

    ballX3 = ballX3 + speed4;

    ballY3 = ballY3 + speed5;

    ellipse(ballX3, ballY3, 200, 200);

    ellipse(ballX3, ballY3, 200, 200);

​

    ellipse (ballX, ballY, 50, 50);

    ellipse (ballX2, ballY2, 20, 20);

    for (int i = 0; i<100; i++){

    fill(255, dist(mouseX/2, mouseY/2, i*2, 200), 20);

    rect (i*30, height/2, 20, 20);

    rect (i*30, 200, 20, 20);

    rect (i*30, 300, 20, 20);

    println (ballX2);

  } 

  }

  void mousePressed() {

  if (value == 255) {

    value = 0;

    } else {

      value = 255;

    }

}