import controlP5.*;

ControlP5 controlP5;

int spikey = 30;
int complexity = 10;

void setup() {
  controlP5 = new ControlP5(this);
  controlP5.addSlider("spikey",0,100,spikey,15,20,300,10);
  controlP5.addSlider("complexity",0,20,spikey,15,40,300,10);
  
  size(500,500);
  background(0);
}

void draw() {
  fill(0,2);
  rect(0,0,500,500);
  if (mousePressed) {
    drawFract(0, mouseX, mouseY, mouseX-pmouseX, mouseY-pmouseY);
  }
}

void drawFract(int iteration, float curX, float curY, float driftX, float driftY) {
  if (iteration < complexity) {
    float weight = 6.0/iteration;
    strokeWeight(weight);
    stroke(weight*30 + iteration*5, iteration*10+weight*60, (10-iteration)*20,200);
    float newx = curX-driftX;
    float newy = curY-driftY;
    line(curX, curY, newx, newy);
    drawFract(iteration+1, newx, newy, driftX*log(abs(mouseY-pmouseY))*spikey/50.0, driftY*log(abs(mouseX-pmouseX))*spikey/50.0);
  }
}