tree_test - OpenProcessing

tree
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/* OpenProcessing Tweak of *@*http://www.openprocessing.org/sketch/144159*@* */
/* !do not delete the line above, required for linking your tweak if you upload again */
class pathfinder {
  PVector lastLocation;
  PVector location;
  PVector velocity;
  float diameter;
  boolean isFinished;
  pathfinder() {
    location = new PVector(width/2, height);
    lastLocation = new PVector(location.x, location.y);
    velocity = new PVector(0, -10);
    diameter = random(10, 20);
    isFinished = false;
  }
  pathfinder(pathfinder parent) {
    location = parent.location.get();
    lastLocation = parent.lastLocation.get();
    velocity = parent.velocity.get();
    diameter = parent.diameter * 0.62;
    isFinished = parent.isFinished;
    parent.diameter = diameter;
  }
  void update() {
    
    if(location.x > -10 & location.x < width + 10 & location.y > -10 & location.y < height + 10) {
      lastLocation.set(location.x, location.y);
      if (diameter > 0.2) {
        count ++;
        PVector bump = new PVector(random(-1, 1), random(-1, 1));
        velocity.normalize();
        bump.mult(0.2);
        velocity.mult(0.8);
        velocity.add(bump);
        velocity.mult(random(5, 10));
        location.add(velocity);
        if (random(0, 1) < 0.2) { // control length
          paths = (pathfinder[]) append(paths, new pathfinder(this));
        }
      } else {
        if(!isFinished) {
          isFinished = true;
          noStroke();
          fill(240, 230, 150, 100);
          ellipse(location.x, location.y, 10, 10);
          stroke(165, 42, 34, 200);
        }
      }
    }
  }
}
pathfinder[] paths;
int num;
static int count;
void setup() {
  size(1024, 768);
  background(250);
  ellipseMode(CENTER);
  stroke(165, 42, 34, 200);
  smooth();
  num = 2;
  count = 0;
  paths = new pathfinder[num];
  for(int i = 0; i < num; i++) paths[i] = new pathfinder();
}
​
void draw() {
//  println(count);
//  println(paths.length);
  for (int i = 0; i < paths.length; i++) {
    PVector loc = paths[i].location;
    PVector lastLoc = paths[i].lastLocation;
    strokeWeight(paths[i].diameter);
    line(lastLoc.x, lastLoc.y, loc.x, loc.y);
    paths[i].update();
  }
}
void mousePressed() {
  background(250);
  count = 0;
  paths = new pathfinder[num];
  for(int i = 0; i < num; i++) paths[i] = new pathfinder();
​
}