class Movel{

  public float angle, radius;
  float sa, sr;
  color c;

  public Movel(){
    angle = random(TWO_PI);
    radius = random(1.0);
    sa = random(-PI,PI);
    sr = random(-0.5,0.5);    
    c = color((int)random(256), (int) random(128,255),(int) random(128,255));
  }


  public void draw(){
    float x = (cos(angle) * radius * halfwidth) + halfwidth;
    float y = (sin(angle) * radius * halfheight) + halfheight;
    fill(c);
    ellipse (x,y,10,10); 
  }

  public void move(){
    angle += (sa / 30);
    radius += (sr / 30);

    // test boundaries 
    if ((1-radius)<= epsilon){
      if (sr>=0){
        sr = random(-0.5,-epsilon);
        sa = random(-PI,PI);
        highlights.add(new Highlight(angle,false));
      }
    }
    else{
      if (radius <= epsilon){
        if (sr<=0){
          sr = -sr;
          c = color((int)random(256), (int) random(128,255),(int) random(128,255));
          highlights.add(new Highlight(angle,true));
        }
      }
    }
  }
}