class Radio {
  float x, y, w, speed, a;

  Radio (float x_, float y_, float w_, float speed_, float a_) {
    x = x_;
    y = y_;
    w = w_;
    speed = speed_;   
    a = a_;
  }

  void displayr () {
    noStroke ();
    fill (255,158,0, a);
    ellipse (x,y,w,w);
  }
  void mover () {
    if (random(1.0) < 0.5) {
    x += speed;
    y -= speed*0.5;
    }
    
   if (random(1.0) > 0.5) {
     x+= speed*2;
     y-= speed*0.8;
   }
    
    x  = x + random( - 3,3)* speed;
    y  = y + random( - 3,3)* speed;
    

    x = constrain (x,0,width);
        y = constrain (y,0,height);
    
    a  = a + 2 * speed;
    if (a > 100) {
      a-=40; 
    }
    else if (a < 20) {
      a+=40;
    }
  }
  void bouncer () {
    if ( y < 1 ||  y> (height-1) || x < 1 || x > (width-1)) {
      speed = speed * -0.95;
    }
    if (buttonr) {
      if (random(1.0) < 0.02) {
        Radio rs = new Radio (random(250,270), random(390,400), random(7,12), random(4), random (85,20));
        radios = (Radio []) append (radios, rs);
      }
    }
  }
}