snow but mine

snow.pde

snowflake[] snowflakes;
snowflake snowflake;
float wind = 4.0;
int snowAmount;
void setup(){
  size(600,400);
  background(0);
  snowAmount = 400;
  snowflakes = new snowflake[snowAmount];
  for(int i = 0; i < snowflakes.length; i++){
    float size = (abs(round(randomGaussian()))*(round(random(0.6)*10)+0.1));
    snowflakes[i] = new snowflake(random(width), random(height), size); 
  }
  noStroke();
}

void draw(){
  fill(0);
  rect(0, 0, width, height);
  fill(255);
  for(int i = 0; i<snowflakes.length; i++){
    snowflakes[i].fall();
    snowflakes[i].updateGravity();
    snowflakes[i].show();
  }
  //saveFrame("line-######.png");
}
class snowflake{
  float x, y;
  float d;
  float gravity;
  float maximumV;
  snowflake(float x, float y, float d){
    this.x = x;
    this.y = y;
    this.d = d;
    this.gravity = this.d / 3;
    this.maximumV = this.d * 1.1;

  }
  void show(){
    if(this.y >= height+20){
      this.gravity = this.d/3;
      this.y = -20;
    }
    if(this.x > width){
      this.x = 0;
    }
    if(this.x < 0){
      this.x = width;
    }
    ellipse(this.x,this.y,this.d,this.d);
  }
  void updateGravity(){
    if(!(this.gravity >= this.maximumV)){
      this.gravity+=0.05;
    }
    this.x += wind;
  }
  void fall(){
    this.y += this.gravity;
  }
}