E9

int d = 50;

int elps_pos_x = 100;

int elps_pos_y = 200;

​

int elps_pos_2_x = 100;

int elps_pos_2_y = 250;

​

int direction = 3;

int direction_2 =- 3;

​

void setup () {

  size (400, 400, P2D);

  background (255);

  smooth (8);  

​

}

​

​

void draw () {

​

 fill (23, 8, 200);

ellipse (elps_pos_x,elps_pos_y, d,d ); 

ellipse (elps_pos_x + elps_pos_x ,elps_pos_y, d,d ); 

ellipse (3*elps_pos_x, elps_pos_y, d,d ); 

​

​

​

elps_pos_y =  elps_pos_y +direction;

​

 if (elps_pos_y < 50) {

  direction = - direction;

 elps_pos_y =  elps_pos_y + direction;

 } else if (elps_pos_y > height - d) {

 direction = - direction;

 }

​

fill (255, 107, 8);

 ellipse (elps_pos_2_x - d,elps_pos_2_y, d,d ); 

ellipse (elps_pos_2_x + d,elps_pos_2_y, d,d ); 

ellipse (2*elps_pos_2_x +d,elps_pos_2_y, d,d ); 

ellipse (3*elps_pos_2_x +d, elps_pos_2_y, d,d ); 

​

​

​

elps_pos_2_y =  elps_pos_2_y  + direction_2;

​

 if (elps_pos_2_y < 50) {

  direction_2 = - direction_2;

 elps_pos_2_y =  elps_pos_2_y + direction_2;

 } else if (elps_pos_2_y > height - d) {

 direction_2 = - direction_2;

 }

​

 if (keyPressed) {

    if (key == 'z' || key == 'Z' && elps_pos_2_y < 50  ) {

      direction_2 = - direction_2;

 elps_pos_2_y =  elps_pos_2_y + 2*direction_2;

   } else if (key == 'z' || key == 'Z' && elps_pos_2_y > height - d)

   {

    direction_2 = - direction_2;

   }

     }

  if (keyPressed) {

    if (key == 'x' || key == 'X' && elps_pos_y < 50  ) {

      direction = - direction;

 elps_pos_y =  elps_pos_y + 2*direction;

   } else if (key == 'x' || key == 'X' && elps_pos_y > height - d)

   {

    direction = - direction;

   }

  }

​

​

}