let gravity;

​

let zOff = 0;

​

let textures = [];

​

function getRandomSnowflake(){

  return random(textures);

}

​

function preload(){

  for(let i = 0; i <= 50; i++){

    textures.push(getSnowflake());

  }

}

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  gravity = createVector(0,0.3);

  for(let i = 0; i < 1000; i++){

    snow.push(new Snowflake());

  } 

}

​

function draw() {

  background(0);

   zOff += 0.05;

   for(let flake of snow){

     let xOff = flake.pos.x / width;

     let yOff = flake.pos.y / height;

     let wAngle = noise(xOff,yOff,zOff) * TWO_PI

     let wind = p5.Vector.fromAngle(wAngle);

     wind.mult(0.1);

     flake.applyForce(gravity);

     flake.applyForce(wind);

     flake.update();

     flake.draw();

   }

}