​

let num_steps;

let step;

​

function getRandomInt(min, max) {

  min = Math.ceil(min);

  max = Math.floor(max);

  return Math.floor(Math.random() * (max - min) + min); //The maximum is exclusive and the minimum is inclusive

}

​

function setup() {

  step = 0;

  num_steps = 50000;

  createCanvas(1000, 1000);

  // https://www.colourlovers.com/palette/4832400/Fresh_colors

  bands = [

    color("#092420"),

    color("#D1E449"),

    color("#BCE487"),

    color("#45E9F2"),

    color("#24B5D9")

  ];

  background(bands[0]);

}

​

function draw() {

  strokeWeight(random(0.5,5));

  if ((frameCount % 2) == 0) {

    stroke(color(255))

    fill(bands[0]);

  } else {

    stroke(bands[getRandomInt(1,bands.length)]);

    noFill();

  }

  let _len = random(5,50);

  let p1 = createVector(random(width), random(height));

  let p2 = createVector(p1.x + _len, p1.y);

  let p3 = createVector(p1.x + _len/2, p1.y - _len);

  triangle(p1.x, p1.y, p2.x, p2.y, p3.x, p3.y);

  step++;

  if (step > num_steps)

    noLoop();

  //background(bands[0]);

}