woven sunrise

let nStr, d, c;
let colors = [
  "#db9031",
  "#cb7d2b",
  "#bc6926",
  "#ac5620",
  "#914923",
  "#773c25",
  "#5e2f25",
  "#492723",
  "#342020",
  "#20181d"
];
let col;
function setup() {
  createCanvas(windowWidth * 0.9, windowHeight * 0.9);
  nColors = int(random(10, 20));
  col = [];
  nR = [];
  nRot = [];
  rectMode(CENTER);
  nStr = 2 * int(random(50, 100));
  c = min(width, height) * 0.9;
  d = c / nStr;
  angleMode(DEGREES);

  noLoop();
  noFill();
  for (let i = 0; i < nStr; i++) {
    col[i] = int(random(0, colors.length - 0.000001));
    nR[i] = int(randomGaussian(3, 1));
    nRot[i] = int(random(0, nStr));
  }
}

function draw() {
  background(50 + random(10, 20), 20 + random(10, 20), 50 + random(10, 20));
  stroke(150, 180, 205);
  strokeWeight(3);
  translate(width / 2, height / 2);
  t = frameCount;
  for (let i = 0; i < nStr; i++) {
    stroke(colors[col[i]]);
    line(
      0,
      0,
      (c / 2) * cos((i * 360) / nStr),
      (c / 2) * sin((i * 360) / nStr)
    );
  }
  strokeWeight(d * 0.3);
  for (let i = 0; i < nStr; i++) {
    for (let j = 0; j < nStr / 2; j++) {
      stroke(colors[col[i]]);
      push();
      rotate((nRot[i] * 360) / nStr);
      if (i % nR[i] === 0) {
        arc(
          0,
          0,
          d * i,
          d * i,
          2 + (360 / nStr) * nR[i] * j,
          (360 / nStr) * nR[i] * (j + 1) - 2
        );
      } else {
        arc(
          0,
          0,
          d * i,
          d * i,
          2 + (360 / nStr) * nR[i] * j + 360 / nStr,
          (360 / nStr) * nR[i] * (j + 1) - 2 + 360 / nStr
        );
      }
      pop();
    }
  }

  border();
}

function border() {
  noFill();
  stroke(colors[int(random(0, colors.length - 1))]);
  strokeWeight(4);
  rect(0, 0, width - 20, height - 20);
}

function mousePressed() {
  frameCount = 0;
  setup();
  draw();
}

function keyPressed() {
  trails = !trails;
}

function windowResized() {
  resizeCanvas(windowWidth * 0.9, windowHeight * 0.9);
}