const MAX_SIZE = 5;

const GRAVITY = 0.55;

const LAYER_COUNT = 3;

​

const WIND_SPEED = 1;

const WIND_CHANGE = 0.0025;

​

const SNOWFLAKES = [];

​

let bg;

​

function preload() {

  bg = loadImage("Images/bg.jpg");  

}

​

function setup() {

  createCanvas(600, 600);

  noStroke();

  for (let l = 0; l < LAYER_COUNT; l++) {

    SNOWFLAKES.push([]);

    for (let i = 0; i < SNOWFLAKES_PER_LAYER; i++) {

      SNOWFLAKES[l].push({

        x: random(width),

        y: random(height),

        mass: random(0.75, 1.25),

        l: l + 0

      });

    }

  }

}

​

function draw() {

  background(bg);

​

  // Iterate through each snowflake to draw and update them

  for (let l = 0; l < SNOWFLAKES.length; l++) {

    const LAYER = SNOWFLAKES[l];

​

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

      const snowflake = LAYER[i];

      circle(snowflake.x, snowflake.y, (snowflake.l * MAX_SIZE) / LAYER_COUNT);

      updateSnowflake(snowflake);

    }

  }

}

​

​

function updateSnowflake(snowflake) {

  const diameter = (snowflake.l * MAX_SIZE) / LAYER_COUNT;

  if (snowflake.y > height + diameter) snowflake.y = -diameter;

  else snowflake.y += GRAVITY * snowflake.l * snowflake.mass;

​

​

}

​