let cols; let rows; let size = 10;

let xoff = 0; let yoff = 0; let zoff = 0; let inc = 0.1;

let particles = [];

​

function setup() {

  createCanvas(400, 400);

  cols = width/size;

  rows = height/size;

  for (let i=0; i<100; i++){

    particles[i] = new Particle();

  }

  rectMode(CENTER);

  background(5);

​

}

​

function draw() {

  yoff = 0;

  for (let i=0; i<rows; i++){

    xoff=0;

    forces[i] = [];

    for (let j=0; j<cols; j++){

      let angle = noise(xoff, yoff, zoff) * TWO_PI * 4;

      let v = p5.Vector.fromAngle(angle);

      forces[i][j] = v; 

      xoff+=inc;

      // stroke(0, 50);

      push();

      translate(i*size, j*size);

      rotate(v.heading());

      // strokeWeight(1);

      // line(0, 0, size, 0);

      pop();

​

    }

    yoff+=inc;

    zoff+=0.0003;

  }

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

    particles[i].follow(forces, cols, rows, size);

    particles[i].update();

    particles[i].edges();

    particles[i].show();

  }

}