int level = 0;
int psize = 500;
boolean drawPoints = false;
boolean saveCSV = false;

void setup() {
  size(psize, psize/2);
}

void draw() {
  ArrayList c;
  background(255);
  // level is derived from mouseX, level 7 is maximum
  level = int(float(mouseX) / psize * 8);
  // calculate curve for level 
  c = kochCurve(level, new PVector(0, 0), new PVector(psize, 0));
  // shift curve
  translate(0, psize/3);
  // draw curve
  drawCurve(c, drawPoints);
  // save points as CSV
  if (saveCSV) {
    savePointsCSV(c, "koch.csv", 0.01);
    saveCSV = false;
  }
}


void keyPressed() {
  if (key == 'p')
    drawPoints = !drawPoints;
  else if (key == 'c')
    saveCSV = true;
}