void setup()
{
  size(800,800);
  background(0);
}

float y, xc, yc, s, r, yl;
float xs, ys;
int strk;
float seed;
int opacity;

void draw()
{
  background(0);
  
  //BIG
  seed=.15;
  xc=80;
  yc=700;
  s=500;
  r=random(3.7, 3.9);
  quadratic(150);
  iterate(seed, 150);
  
  //LITTLE
  seed=random(.1,.9);
  xc=300;
  yc=500;
  s=100;
  r=random(3.1,11);
  quadratic(255);
  iterate(seed, 255);
  
   //LITTLE
  seed=random(.1,.9);
  xc=300;
  yc=500;
  s=100;
  r=random(3.1,4);
  //quadratic(255);
  iterate(seed, 255);
  
  //LITTLE
  seed=random(.1,.9);
  xc=100;
  yc=500;
  s=-50;
  r=random(2.5,4);
  quadratic(255);
  iterate(seed, 255);
   
   //LITTLE
  seed=random(.1,.9);
  xc=100;
  yc=500;
  s=100;
  r=random(2.5,4);
  quadratic(255);
  iterate(seed, 255);
  
  //LITTLE
  seed=random(.1,.9);
  xc=300;
  yc=500;
  s=-100;
  r=random(2.5,4);
  quadratic(255);
  iterate(seed, 255);
  
  //EYES
  xc=570;
  yc=220;
  s=50;
  r=random(2.5,4);
  //quadratic();
  iterate(seed, 255);
  xc=500;
  iterate(1-seed, 255);
  
  delay(200);
}

void quadratic(int opacity)
{
  stroke(255,0,0, opacity);
  strokeWeight(2);
  for (float x=0; x<1; x=x+.0005)
  {
    y=r*x*(1-x); 
    point(x*s+xc, y*-1*s+yc);
  }

  line(xc,yc,xc+480, yc-480);
}

void iterate(float seed, int opacity)
{
  stroke(100,100,100, opacity);
  strokeWeight(1);
  xs=seed;
  yl=0;

  for( int it=0; it<200; it=it+1)
  {
    ys=r*xs*(1-xs);
  
    strk=int(random(80,200));
    stroke(strk,0,0, opacity);
  
    line(xs*s+xc, yl*-1*s+yc, xs*s+xc, ys*-1*s+yc);
    line(xs*s+xc, ys*-1*s+yc, ys*s+xc, ys*-1*s+yc);
    xs=ys;
    yl=ys;  
  }
}