// Generated by CoffeeScript 1.10.0
(function() {
  var L,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
    hasProp = {}.hasOwnProperty;
  L = (function() {
    function L($el, width, height, order) {
      this.$el = $el;
      this.width = width;
      this.height = height;
      this.order = order;
      this.init();
      this;
    }
    L.prototype.init = function() {
      var fillrow, i, j, ref, ref1;
      this.pointer = 0;
      this.rule = this.a;
      this.rows = [];
      fillrow = function(len) {
        var i, ref, str;
        str = [];
        for (i = 1, ref = len; 1 <= ref ? i <= ref : i >= ref; 1 <= ref ? i++ : i--) {
          str.push(' ');
        }
        return str.join('');
      };
      for (i = 1, ref = this.height; 1 <= ref ? i <= ref : i >= ref; 1 <= ref ? i++ : i--) {
        this.rows.push(fillrow(this.width));
      }
      for (j = 1, ref1 = this.order; 1 <= ref1 ? j <= ref1 : j >= ref1; 1 <= ref1 ? j++ : j--) {
        this.rule = this.rule.replace(/a/g, 'x').replace(/b/g, 'y').replace(/x/g, this.a).replace(/y/g, this.b);
      }
    };
    L.prototype.putc = function(x, y, c) {
      var replacec;
      replacec = function(str, pos, c) {
        return str.substr(0, pos) + c + str.substr(pos + c.length);
      };
      if ((0 <= x && x < this.width) && (0 <= y && y < this.height)) {
        this.rows[y] = replacec(this.rows[y], x, c);
      }
    };
    L.prototype.line = function() {
      switch (this.angle) {
        case 0:
          this.putc(this.x, this.y, '__');
          this.x += 2;
          break;
        case 60:
          this.putc(this.x, this.y, '/');
          this.x++;
          this.y--;
          break;
        case 120:
          this.x--;
          this.putc(this.x, this.y, '\\');
          this.y--;
          break;
        case 180:
          this.x -= 2;
          this.putc(this.x, this.y, '__');
          break;
        case 240:
          this.x--;
          this.y++;
          this.putc(this.x, this.y, '/');
          break;
        case 300:
          this.y++;
          this.putc(this.x, this.y, '\\');
          this.x++;
      }
    };
    L.prototype.step = function(visible) {
      var redraw;
      if (this.pointer >= this.rule.length) {
        return false;
      }
      redraw = false;
      switch (this.rule[this.pointer]) {
        case 'a':
        case 'b':
          this.line();
          redraw = true;
          break;
        case '-':
          this.angle = (this.angle + 60 + 360) % 360;
          break;
        case '+':
          this.angle = (this.angle - 60 + 360) % 360;
      }
      this.pointer++;
      if (visible) {
        if (redraw) {
          this.draw();
        } else {
          this.step(visible);
        }
      }
      return true;
    };
    L.prototype.draw = function() {
      return this.$el.text(this.rows.join('\n'));
    };
    return L;
  })();
  window.Sierpinski = (function(superClass) {
    extend(Sierpinski, superClass);
    function Sierpinski() {
      return Sierpinski.__super__.constructor.apply(this, arguments);
    }
    Sierpinski.prototype.a = 'b-a-b';
    Sierpinski.prototype.b = 'a+b+a';
    Sierpinski.prototype.init = function() {
      this.x = this.width - 2;
      this.y = this.height - 2;
      this.angle = 180;
      return Sierpinski.__super__.init.apply(this, arguments);
    };
    return Sierpinski;
  })(L);
  window.Flowsnake = (function(superClass) {
    extend(Flowsnake, superClass);
    function Flowsnake() {
      return Flowsnake.__super__.constructor.apply(this, arguments);
    }
    Flowsnake.prototype.a = 'a-b--b+a++aa+b-';
    Flowsnake.prototype.b = '+a-bb--b-a++a+b';
    Flowsnake.prototype.init = function() {
      this.x = this.width / 2;
      this.y = this.height;
      this.angle = 0;
      return Flowsnake.__super__.init.apply(this, arguments);
    };
    return Flowsnake;
  })(L);
}).call(this);