Roots - OpenProcessing

mySketch
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Root[] roots = new Root[0];
​
void setup() {
  size(screen.width, screen.height);
  background(0);
  stroke(241, 30, 3, 15);
  smooth();
}
​
void draw() {
  for (int i = 0; i < roots.length; i++) {
    if (!roots[i].finished())
      roots[i].drawLines();
  }
  if (mousePressed) {
    roots = (Root[]) append(roots, new Root(mouseX, mouseY, 8, random(100), 1));
  }
}
​
void mousePressed() {
  background(0);
  for (int i = 0; i < roots.length; i++) {
    roots[i].tm = 1;
  }
}
​
class Root {
  float X;
  float Y;
  float rot;
  float V;
  float tm;
  int fm;
  Root(int tX, int tY, float tfm, float trot, float tV) {
    X = tX;
    Y = tY;
    rot = trot;
    tm = tfm;
    V = tV;
  }
  void drawLines() {
    V += random(-0.03, 0.03);
    tm /= 1.01;
    strokeWeight(tm);
    rot += random(-0.2, 0.2);
    line(X, Y, X + V*sin(rot), Y + V*cos(rot));
    line(X, Y, X + V*sin(rot), Y + V*cos(rot));
    X += V*sin(rot);
    Y += V*cos(rot);
    fm++;
    if (random(400) > 398.5-(fm/20)) {
      roots = (Root[]) append(roots, new Root(int(X), int(Y), tm, rot + random(-0.2, 0.2), V));
    }
  }
  boolean finished() {
    if (tm < 1.01) {
      return true;
    } else {
      return false;
    }
  }
}
​