/* built with Studio Sketchpad: 
 *   https://sketchpad.cc
 * 
 * observe the evolution of this sketch: 
 *   https://studio.sketchpad.cc/sp/pad/view/ro.cOmBABQ5wxr/rev.5
 * 
 * authors: 
 *   GoToLoop

 * license (unless otherwise specified): 
 *   creative commons attribution-share alike 3.0 license.
 *   https://creativecommons.org/licenses/by-sa/3.0/ 
 */ 



/** 
 * Square Flower (v2.1)
 * by  Jordan Orelli (2013/Dec)
 * mod GoToLoop
 * 
 * http://jordanorelli.tumblr.com/post/70910152988/square-flower
 * https://gist.github.com/jordanorelli/8100924
 *
 * studio.processingtogether.com/sp/pad/export/ro.9AzN8ufMfio2x/latest
 */

static final int DIM = 040, CURVE = -010;
static final int NUM = 050, FRAMES = 0200;
static final float RAD = 0200, LARGE = 0120, FORM = 5;
static final color BG = -1, FG = #0000FF;

static final boolean SAVE_FRAMES = true;
static String path;

void setup() {
  size(500, 500);
  frameRate(60);

  smooth(4);
  rectMode(CENTER);

  strokeWeight(2);
  stroke(FG);
  fill(BG);

  //path = dataPath("###.png");
}

void draw() {
  background(BG);
  translate(width>>1, height>>1);

  for (int i = 0; i != NUM; drawRect(i++));

  //if (SAVE_FRAMES & frameCount <= FRAMES)  saveFrame(path);
}

void drawRect(int i) {
  final float n1 = norm(i, 0, NUM) * TWO_PI;
  final float n2 = norm(frameCount, 0, FRAMES) * TWO_PI;
  final float offset = sin(FORM*n1 + n2) * LARGE + RAD;

  pushMatrix();
  rotate(n1);
  rect(offset, 0, DIM, DIM, CURVE);
  popMatrix();
}