220105a

const cpat = [

  "1a535c-4ecdc4-f7fff7-ff6b6b-ffe66d",

  "5f0f40-9a031e-fb8b24-e36414-0f4c5c",

  "227c9d-17c3b2-ffcb77-fef9ef-fe6d73",

  "fffcf2-ccc5b9-403d39-252422-eb5e28",

  "0d1b2a-1b263b-415a77-778da9-e0e1dd",

  "22577a-38a3a5-57cc99-80ed99-c7f9cc",

  "ffbe0b-fb5607-ff006e-8338ec-3a86ff",

  "233d4d-fe7f2d-fcca46-a1c181-619b8a",

  "#8ecae6-219ebc-126782-023047-ffb703-fd9e02-fb8500"

];

​

function setup() {

  w = 720;

  createCanvas(w, w);

  color_pat = random(cpat);

  color_pat = color_pat.split('-');

  for(let i=0;i<color_pat.length;i++){

    color_pat[i] = "#"+color_pat[i];

  }

​

  colorMode(HSB);

  let bg = [hue(random(color_pat)), 20, 100] ;

  background(bg);

​

  imageMode(CENTER);

  strokeWeight(1);

​

  drawingContext.shadowColor = color(0, 0.5);

  drawingContext.shadowBlur = 6;

  drawingContext.shadowOffsetX = 10;

  drawingContext.shadowOffsetY = 10;

​

  let N = 20;

​

  for(let i=0;i<N;i++){

   let size = w/6*random(1, 2);

​

   let num = random(16, 64);

   let c = random(color_pat); 

​

   push();

   translate(random(w), random(w));

   let img = rand_rect(0, 0, size, num, 0.1, c);

   image(img, 0, 0);

   pop();

  }

}

​

function rand_rect(x, y, size, num, del, col){

  let img = createGraphics(size*2, size*2);

  img.colorMode(HSB);

  img.stroke(col);

  img.push();

  img.translate(x+size, y+size);

  let Nk = size * 0.15;

  for(let k=0;k<Nk;k++){

    let ssize = size-0.5*size*(k+1)/Nk;

    let nnum = num-0.5*num*(k+1)/Nk;

    let delta = ssize/nnum;

​

    let dy=random(-1, 1)*random(ssize*del);

    let dyp=random(-1, 1)*random(ssize*del);

    for(let j=0;j<4;j++){

      img.push();

      img.rotate(PI/2*j);

      img.translate(0, ssize/2);

      for(let i=0;i<nnum;i++){

        dy = random(-1, 1)*random(ssize*del);

        img.line(delta*(i-nnum/2), dyp, delta*(i+1-nnum/2), dy);

        dyp = dy;

      }

      img.pop();

    }

  }

  img.pop();

​

  return img;

}

​

//save PNG

function keyPressed() {

  save("img_" + month() + day() + hour() + minute() + second() + ".png");

}