void setup()
{
  size(300, 300);
  colorMode(HSB, 360, 100, 100);
}
float x = 0;
float y = 0;
int deg = 0;
float r = 150;

int h, s, b;
 
void draw()
{
  background(100, 0, 0);
  line(0, 0, 300, 300);
  line(0,15, 250, 300);
  line(0, 30, 200, 300);
  line(0, 45, 150, 300);
  line(0, 60, 100, 300);
  line(0, 75, 50, 300);
  line(15, 0, 300, 250);
  line(30, 0, 300, 200);
  line(45, 0, 300, 150);
  line(60, 0, 300, 100);
  line(75, 0, 300, 50);
  stroke(0, 0, 100); 
  
  if(r < 0)
  { 
  }
 
  else if(r > 0)  
 { 
   fill(h, 100, 100);
   h = h + 1;
   x = 150 + r*cos(radians(deg));
   y = 150 + r*sin(radians(deg));
   ellipse(x, y, 50, 50);
   
   fill(h + 50, 100, 100);
   x = 100 + r*cos(radians(deg));
   y = 100 + r*sin(radians(deg));
   ellipse(x, y, 40, 40);
   
    fill(h + 100, 100, 100);
   x = 60 + r*cos(radians(deg));
   y = 60 + r*sin(radians(deg));
   ellipse(x, y, 30, 30);
   
   fill(h - 50, 100, 100);
   x = 200 + r*cos(radians(deg));
   y = 200 + r*sin(radians(deg));
   ellipse(x, y, 60, 60);
   
   fill(h - 100, 100, 100);
   x = 260 + r*cos(radians(deg));
   y = 260 + r*sin(radians(deg));
   ellipse(x, y, 70, 70);
 }
 
  deg = deg + 2;
  r = r - 0.3;

}