class Ball {

  float xspeed= 2;
  float yspeed= random(-1,1);

  PVector locationball= new PVector(random(width),random(height));
  PVector dir;
  //float distance= dist(location.x,location.y,locationball.x,locationball.y);


void display (){
  noStroke();
  fill (255);
  ellipse(locationball.x,locationball.y,20,20);

}

void move (){
  locationball.x+=xspeed;
  locationball.y+=yspeed;
}

void bounce (){
  if (locationball.x<0 || locationball.x>width){
    xspeed=(xspeed)*-1;
  } else if (locationball.y<0 || locationball.y>height){
    yspeed=(yspeed)*-1;
  }

}

void repel (){
  dir= PVector.sub(locationball,mover);
  dir.normalize();
  dir.mult(-0.5);
    dir.add(mover);
    mover.limit(3);

}


}