let ibm_blue = "#0f62fe";

let vaporwave = [

  // (0, 0, 0),

  // (20, 20, 20),

  // (220, 220, 220),

  "#ff71ce",

  "#01cdfe",

  "#05ffa1",

  "#b967ff",

  "#fffb96",

  "#0f62fe",

  // (0, 0, 0),

  // (0, 0, 0),

  // (0,0,0),

];

function setup() {

  let seed = int(random(10000));

  console.log(seed);

  randomSeed(seed);

  noiseSeed(seed);

  createCanvas(800, 800);

  background(255);

  noiseDetail(4, 0.25);

​

  let w = width * 0.8;

  let off = (width - w) / 2;

  let boxw = w / 12;

​

  for (let y = 0; y < height; y++) {

    grid[y] = [];

    for (let x = 0; x < width; x++) {

      let n = noise(x * 0.01, y * 0.01);

      let a = map(n, 0.0, 1.0, -TWO_PI, TWO_PI);

      let a2 = Math.ceil(

        (map(n, 0.0, 1.0, -TWO_PI, TWO_PI) * (PI / 4)) / (PI / 4)

      );

      grid[y][x] = { n: n, a: a, a2: a2 };

      // grid[y][x] = a;

    }

  }

​

  rectMode(CENTER);

  fill(color(ibm_blue));

  rect(width / 2, height / 2, w, w);

​

  for (let _ = 0; _ < 10000; _++) {

    let _a = "a"; //random(['a','a2'])

    let life = random(200, 550);

    let p = {

      x: int(random(off, width - off)),

      y: int(random(off, height - off)),

      c: random(vaporwave),

    };

​

    for (let l = 0; l < life; l++) {

      let col = color(p.c); //ibm_blue);//map(l, 0, life, 20, 220));

​

      col.setAlpha(120); //map(l, 0, life, 220,20));

​

      stroke(col);

      point(p.x, p.y);

      // let a = random(TWO_PI, 0)

      let a = grid[int(p.y)][int(p.x)][_a];

      p.x += cos(a);

      p.y += sin(a);

​

      if (p.x < off || p.x > width - off || p.y < off || p.y > height - off)

        break;

    }

  }

  for (let _ = 0; _ < 2500; _++) {

    let _a = "a2"; //random(['a','a2'])

    let life = random(200, 550);

    let p = {

      x: int(random(off, width - off)),

      y: int(random(off, height - off)),

      c: random(vaporwave),

    };

​

    for (let l = 0; l < life; l++) {

      let col = color(p.c); //ibm_blue);//map(l, 0, life, 20, 220));

​

      col.setAlpha(map(l, 0, life, 220,20));

    strokeWeight(map(l, 0, life, 5,0.5));

      stroke(color(0,0,0,10));//col);

      point(p.x, p.y);

      // let a = random(TWO_PI, 0)

      let a = grid[int(p.y)][int(p.x)][_a];

      p.x += cos(a);

      p.y += sin(a);

​

      if (p.x < off || p.x > width - off || p.y < off || p.y > height - off)

        break;

    }

  }

​

​

  translate(width / 2, height / 2);

​

  strokeWeight(20);

  stroke(0);

  noFill();

  rect(0, 0, w, w);

}

​

function draw() {}

​