// CCurveDemoFall2022_010

void setup() {
  size(1500, 1000, P2D);
  frameRate(60);
  colorMode(HSB, 360, 100, 100, 100);
  background(180, 100, 100);
}
boolean firsttime = true ;
void draw() {
  background(180, 100, 100);
  push();
  placeShape(width/2, round(3 * height / 4.0), height / 2, height / 128 -1);
  pop();
  if (firsttime) {
    // saveFrame("CCurve-######.jpg");
    firsttime = false ;
  }
}

void placeShape(int startx, int starty, int length, int limit) {
  push(); //<>//
  translate(startx, starty);
  recursiveDraw(length, limit);
  pop();
}

void recursiveDraw(int length, int limit) { //<>//
  push();
  if (length < limit) {
    line(0, 0, 0, -length); //<>//
  } else {
    int newlen = round(length / sqrt(2));
    rotate(radians(-45));
    recursiveDraw(newlen, limit);
    translate(0, -newlen);
    rotate(radians(90));
    recursiveDraw(newlen, limit);
  }
  pop();
}