2022-12-25

let t = 0.0;

let vel = 0.01;

let num;

let particles = [];

let palette_selected;

​

function setup() {

  createCanvas(800, 800);

  pixelDensity(2)

  background(51);

​

  num = random(100);

  palette_selected = random(palettes);

  for (i = 0; i < 200; i++) {

    particles[i] = new Particle(random(width), random(height))

  }

}

​

function draw() {

  randomSeed(num);

  stroke("#355070");

​

  push();

  for (i = 0, len = particles.length; i < len; i++) {

    particles[i].display();

    particles[i].update();

  }

  pop();

  t += vel;

}

​

class Particle {

  constructor(x, y) {

    this.ran = random(width * 0.2) * random(-1, 1)

    this.position = createVector(x, y)

    this.lifespan = 255.0;

    this.d = width * random(0.005, 0.01)/10;

​

  }

​

  run() {

    this.update();

    this.display();

  }

​

  update() {

    this.lifespan -= 2.0;

  }

​

  display() {

    push();

    fill(255);

    let fomulas =[sin,cos,tan,exp,sq,sqrt,floor,fract,round,ceil,abs]

    translate(this.position.x + random(fomulas)(this.ran * random(fomulas)(t)), 

    this.position.y + random(fomulas)(this.ran *random(fomulas)(t/10)))

    poly(0, 0, this.d)

    pop();

  }

​

  isDead() {

    if (this.lifespan < 0.0) {

      return true;

    } else {

      return false;

    }

  }

}

​

function poly(x, y, r) {

  translate(x, y);

  let radius = r 

  noStroke();

  blendMode(SCREEN)

  let colNum = int(random(palette_selected.length));

  this.col = color(palette_selected[colNum]);

  fill(this.col)

  beginShape();

  for (let i = 0; i < TAU; i += TAU / 6) {

    let ex = radius * sin(i);

    let ey = radius * cos(i);

    vertex(ex, ey)

  }

  endShape(CLOSE)

}