Light class

light.coffee

class window.Light
    # constructor for class
    constructor: (@posx, @posy) ->
        @state = Math.floor(Math.random() * 2)
        @speed = Math.floor(Math.random() * 16)
        setInterval(@changeState, 1000 * @speed + 5000)

    # method to draw light
    draw: =>
        ctx.drawImage(img[@state], size[0] + @posx * size[0] - 18, size[1] + @posy * size[1] - 18)
        
    # method to change state
    changeState: =>
        if @state then @state = 0 else @state = 1
        #redraw()

light.js

(function() {
  var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };

  window.Light = (function() {

    function Light(posx, posy) {
      this.posx = posx;
      this.posy = posy;
      this.changeState = __bind(this.changeState, this);
      this.draw = __bind(this.draw, this);
      this.state = Math.floor(Math.random() * 2);
      this.speed = Math.floor(Math.random() * 16);
      setInterval(this.changeState, 1000 * this.speed + 5000);
    }

    Light.prototype.draw = function() {
      return ctx.drawImage(img[this.state], size[0] + this.posx * size[0] - 18, size[1] + this.p$
    };

    Light.prototype.changeState = function() {
      if (this.state) {
        return this.state = 0;
      } else {
        return this.state = 1;
      }
    };

    return Light;

  })();

}).call(this);

light_thin_arrow.js

(function() {

  window.Light = (function() {

    function Light(posx, posy) {
      this.posx = posx;
      this.posy = posy;
      this.state = Math.floor(Math.random() * 2);
      this.speed = Math.floor(Math.random() * 16);
      setInterval(this.changeState, 1000 * this.speed + 5000);
    }

    Light.prototype.draw = function() {
      return ctx.drawImage(img[this.state], size[0] + this.posx * size[0] - 18, size[1] + this.posy * size[1] - 18);
    };

    Light.prototype.changeState = function() {
      if (this.state) {
        return this.state = 0;
      } else {
        return this.state = 1;
      }
    };

    return Light;

  })();

}).call(this);