// Daniel Shiffman

// http://natureofcode.com

​

var lsys;

var turtle;

​

function setup() {

  createCanvas(600, 600);

  // Create an empty ruleset

   let ruleset = [];

   // Fill with two rules (These are rules for the Sierpinksi Gasket Triangle)

   ruleset[0] = new Rule('F',"F--F--F--G");

   ruleset[1] = new Rule('G',"GG");

   // Create LSystem with axiom and ruleset

   lsys = new LSystem("F--F--F",ruleset);

   turtle = new Turtle(lsys.getSentence(),width*2,TWO_PI/3);

​

  // let ruleset = [];

  //  ruleset[0] = new Rule('F',"F[F]-F+F[--F]+F-F");

  //  // ruleset[0] = new Rule('F',"FF+[+F-F-F]-[-F+F+F]");

  //  lsys = new LSystem("F-F-F-F",ruleset);

  //  turtle = new Turtle(lsys.getSentence(),width-1,PI/2);

​

  // Algae

  // var ruleset = [];

  // ruleset[0] = new Rule('F', "FF+[+F-F-F]-[-F+F+F]");

  // lsys = new LSystem("F", ruleset);

  // turtle = new Turtle(lsys.getSentence(), height/3, radians(25));

}

​

function draw() {

  background(51);

  fill(0);

  //text("Click mouse to generate", 10, height-10);

​

  translate(width/2, height);

  rotate(-PI/2);

  turtle.render();

}

​

var counter = 0;

​

function mousePressed() {

  if (counter < 5) {

    push();

    lsys.generate();

    //println(lsys.getSentence());

    turtle.setToDo(lsys.getSentence());

    turtle.changeLen(0.5);

    pop();

    //redraw();

    counter++;

  }

}

​