let v;

let turn = 0;

let num;

let swarm = [];

​

function setup() {

  createCanvas(windowWidth, windowHeight, WEBGL);

  colorMode(HSB, 360, 100, 100, 100);

  rad = height*.3;

  v = height*.1;

  num = height*.5;

  frameRate(20);

  background(200, 30, 100)

  for (let i = 0; i < num; i++) {

    swarm.push(new Bug());

  }

}

​

function draw() {

  //background(random(50), 20, 100);

  lights();

  for(let i=0; i < swarm.length; i++){

    swarm[i].run();

  }

  push();

  //rotateY(turn);

  rotateY(map(mouseX, 0, width, -1, 1));

  rotateX(map(mouseY, 0, width, -1, 1));

  rotateZ(turn);

  //noStroke();

  drawTrack(height*0.15, rad, v);

  drawEdges(height*0.15, rad, v);

  turn += 0.005;

  pop();

}

​

function drawTrack(steps, rad, v) {

  //beginShape(TRIANGLE_STRIP);

  beginShape(TRIANGLE_STRIP);

  fill(0)

  stroke(255)

  //noFill();

  //fill(150, 70, 50, 50)

  //strokeWeight(2);

  //stroke(random(150, 200), 70, 50, 50);

  //noStroke()

  for (let step = 0; step < (steps + 1); step += 1) {

    let u = step * TAU / steps;

    let x = (rad - v * cos(0.5 * u)) * cos(u);

    let y = (rad - v * cos(0.5 * u)) * sin(u);

    let z = -v * sin(0.5 * u);

    vertex(x, y, z);

    x = (rad + v * cos(0.5 * u)) * cos(u);

    y = (rad + v * cos(0.5 * u)) * sin(u);

    z = v * sin(0.5 * u);

    vertex(x, y, z);

  }

  endShape(CLOSE);

}

​

function drawEdges(steps, rad, v) {

  for (let step = 0; step < (steps + 1); step += 1) {

    stroke(0);

    fill(random(260, 300), random(100), random(100));

    let u = step * TAU / steps;

    let x = (rad - v * cos(0.5 * u)) * cos(u);

    let y = (rad - v * cos(0.5 * u)) * sin(u);

    let z = -v * sin(0.5 * u);

    push();

    translate(x, y, z);

    //box(10)c

    box(random(6,10))

    pop();

    x = (rad + v * cos(0.5 * u)) * cos(u);

    y = (rad + v * cos(0.5 * u)) * sin(u);

    z = v * sin(0.5 * u);

    push();

    translate(x, y, z);

    box(random(6,10))

    //box(10);

    pop();

  }

}

​

class Bug{

  constructor(){

    this.loc = createVector(0, 0, 0);

    this.vel = createVector(0, 0, 0);

    this.rad = random(height*0.01);

    this.ts = random(5);

    this.color = random(360);

  }

​

  run(){

    this.update();

    this.display();

  }

  update(){

    this.a = p5.Vector.random3D();

    this.a.mult(random(3));

    this.vel.add(this.a);

    this.vel.limit(this.ts);

    this.loc.add(this.vel);

  }

  display(){

    push();

    fill(this.color, random(100), random(100));

    translate(this.loc);

    cone(this.rad, random(10), int(random(10)));

    pop();

  }

}