ProbabilityLayout.pde

/*
 * Probably Dots
 * by Yancy Way (Echophon) - twitter.com/echophons - echophon.tumblr.com
 */
 
//requires HYPE.pde (staging)

HDrawablePool pool;

void probSize(HDrawable d, float x, float y){

    // skip x, for now
    float mapX = map(x, 0.0, width, 0.0, 1.0);
    float mapY = map(y, 0.0, height, 0.0, 1.0);

    // probability 2 in 10 = 0.2 / 1.0 
    // get a random number and check if greater than map
    if (random(0.0,1.0) > mapY){
        d.size(0);
    }
    else{
        d.size(mapY * 5);
    }
}

void setup() {
        size(800,800);
        H.init(this).background(#202020).use3D(false);
        smooth();

        HEllipse hitObj = new HEllipse();
        hitObj.size(10);
        H.add(hitObj).width(700).height(700).noStroke().fill(#237D26).anchorAt(H.CENTER).loc(width/2,height/2).visibility(false);

        HShapeLayout hsl = new HShapeLayout().target(hitObj);

        pool = new HDrawablePool(20000);
        pool.autoAddToStage()
                .add (
                    new HEllipse()
                )
                .layout(hsl)
                .onCreate (
                        new HCallback() {
                                public void run(Object obj) {
                                        int i = pool.currentIndex();
                                        HDrawable d = (HDrawable) obj;
                                        d.noStroke().size(2)
                                        ;
                                        probSize(d, d.x(), d.y() );
                                }
                        }
                )
                .requestAll()
        ;
}

void draw() {
        H.drawStage();
        if(frameCount % 2 == 0 && frameCount < 3){
            saveFrame("image-#####.png");
        }
}