// Kevin Piunno
// PS1
// Q7

int i = 0;

boolean dir = true;

void setup()
{
  background(0);
  size(500,500);
  
  colorMode(HSB,360,100,100,100);
}
void draw()
{
  stroke(i%360,map(i,0,1500,100,0),100,map(i,0,450,100,0));
  strokeWeight(10);
  line(map(i,0,1500,0,width),0,width/2,map(i,0,100,0,height)*2);
  line(map(i,0,1500,0,width),0,map(i,0,100,0,width/2)*2,height);
  line(width-map(i,0,1500,0,width),0,width/2,map(i,0,100,0,height)*2);
  line(width-map(i,0,1500,0,width),0,width-map(i,0,100,0,width/2)*2,height);
  println(i + " " + i); 
	
  
  if(dir)
  {
    i++;
    if(i > 500)
      dir = !dir;
  }
  else
  {
    i--;
    if(i < 5)
      dir = !dir;
  }
}