this.begin = begin;

  this.end = end;

  this.finished = false;

  this.jitter = function() {

    this.end.x += random(-1, 1);

    this.end.y += random(-1, 1);

  }

​

  this.show = function() {

    stroke(255);

    line(this.begin.x, this.begin.y, this.end.x, this.end.y);

  }

​

  this.branchA = function() {

    let dir = p5.Vector.sub(this.end, this.begin);

    let angle = random(0, PI/3);

    dir.rotate(angle);

    dir.mult(0.67);

    let newEnd = p5.Vector.add(this.end, dir);

    let a = new Branch(this.end, newEnd);

    return a;

  }

  this.branchB = function() {

    let dir = p5.Vector.sub(this.end, this.begin);

    let angle = random(-PI/3, 0);

    dir.rotate(angle);

    dir.mult(0.67);

    let newEnd = p5.Vector.add(this.end, dir);

    let b = new Branch(this.end, newEnd);

    return b;

  }

}