​

let num = 42,

  a = 0,

  numPoints = int(random(8, 32)),

  angle = 0,

  angleStep = 180.0 / numPoints;

​

console.log(angleStep)

const mouse = [];

​

function setup() {

  createCanvas(640, 360);

  noFill();

}

​

function draw() {

  stroke(200, a);

  background(3, 7, 11);

​

  angle = 0;

​

​

  let idx = frameCount % num;

  mouse[idx] = dist(mouseX, mouseY, width * 0.5, height * 0.5);

​

  for (let i = 0; i < num; i++) {

    let m_idx = (idx + 1 + i) % num;

    beginShape(TRIANGLE_STRIP);

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

      let px = width * 0.5 + cos(radians(angle)) * mouse[m_idx];

      let py = height * 0.5 + sin(radians(angle)) * mouse[m_idx];

      angle += angleStep;

      vertex(px + i / 2, py);

    }

    endShape();

  }

​

  a -= 2;

}

​

function mouseMoved() {

  a = 150;

}