パーティクルの間に線をひく3

/**
* movers for drawing lines 3
*
* @author aa_debdeb
* @date 2016/06/02
*/

ArrayList<Mover> movers;

void setup(){
  size(500, 500);
  frameRate(120);
  background(0);
  movers = new ArrayList<Mover>();
  for(int i = 0; i < 30; i++){
    movers.add(new Mover());
  }
  background(255);
  colorMode(HSB, 360, 100, 100);
}

void draw(){
  translate(width / 2, height / 2);
  for(int i = 0; i < movers.size() - 1; i++){
    Mover m1 = movers.get(i);
    for(int j = i + 1; j < movers.size(); j++){
      Mover m2 = movers.get(j);
      float hue = (m1.hue + m2.hue) / 2.0;
      float saturation = (m1.saturation + m2.saturation) / 2.0;
      stroke(hue, saturation, 100, 10);
      line(m1.getX(), m1.getY(), m2.getX(), m2.getY());
    }
  }
  for(Mover m: movers){
    m.update();
  }
}

class Mover{
  
  PVector center;
  float radious, radian, speed;
  float hue, saturation;
  
  Mover(){
    float cRad = random(0, width);
    float cAng = random(TWO_PI);
    center = new PVector(cRad * cos(cAng), cRad * sin(cAng));
    radious = random(50, 200);
    radian = random(TWO_PI);
    speed = random(-PI / 128, PI / 128);
    hue = random(180, 240);
    saturation = random(100);
  }
  
  void update(){
    radian += speed;
    if(radian < 0){
      radian += TWO_PI;
    }
    if(radian > TWO_PI){
      radian -= TWO_PI;
    }
  }
  
  float getX(){
    return center.x + radious * cos(radian);
  }
  
  float getY(){
    return center.y + radious * sin(radian);
  }
}