let height =  400;

​

​

let sprites = [];

let rows,cols;

let size = 100;

​

​

function setup() {

​

    createCanvas(width , height,WEBGL);

​

    angleMode(DEGREES);

​

​

    rows = width/size;

    cols = height/size;

​

​

   polarGrid();

}

​

function draw(){

​

    background(255);

​

    // translate(-width * 0.5,-height * 0.5);

​

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

      sprites[i].display();

      sprites[i].update();

    }

​

}

​

function polarGrid(){

    let xstart = cos(random(10)) * 100;

​

    let xnoise = xstart;

​

    let ynoise = random(10);

​

    let _inc = 0.1;

​

  for(let i=0; i<=180; i+=size * 0.025){

​

     let posx = cos(i) * size;

     let posy = sin(i) * size;

​

     let negx = cos(-i) * size;

     let negy = sin(-i) * size;

​

     let p1 = createVector(posx, posy);

​

     let p2 = createVector(negx, negy);

​

     let d = p2.dist(p1);

​

     let _step = d * 0.045;

      ynoise += _inc;

​

      xnoise = xstart;

​

     for(let j=0; j<d; j+=_step){

​

         let _x = posx + cos(-90) * j;

         let _y = posy + sin(-90) * j;

​

             xnoise += _inc;

​

          let perlin = noise(xnoise, ynoise);

​

          let angle  = perlin * 360;

          let spd    = 5;

​

          let sprite = new Sprite(_x,_y,_step,angle,spd);

​

          sprites.push(sprite);

​

     }

   }

}

​

​