The .JS version:

the Jar version:

the OpenFrameworks version:

code:

public final int width = 20;
public final int height = 20;

public void setup() {
size(400,500);
background(0xffffff);
noFill();
noLoop();
}
public void draw() {
for(int x = 0; x < 12; x++) { for(int y = 0; y < 20; y++) { translate(x*width,y*height); float random = random((float)y/5); rotate((random(2f)-1f)*random*random); rect(0,0,width,height); resetMatrix(); } } }