#!/usr/bin/ruby
include('LSystem/LSystem.sf')
var rules = Hash(
    S => 'T[-S]+S',
    T => 'TT',
);
var lsys = LSystem(
    width:  1000,
    height: 1000,
    scale: 0.4,
    xoff: 100,
    yoff: 700,
    len:   5,
    angle: 35,
    color: 'dark green',
);
lsys.execute('S', 9, "tree.png", rules);