code: function RendererLayer(game, type, settings) {
          this.game = game;
          this.type = type;
          var typeData = RendererLayer.Types[type];
          RL.Util.merge(this, typeData);
  
          for(var key in settings){
              if(this[key] !== void 0){
                  this[key] = settings[key];
              }
          }
      }
docs: Represents a map tile layer to be rendered.
  @class RendererLayer
  @constructor
  @param {Game} game - Game instance this obj is attached to.
  @param {String} type - Type of `RendererLayer`. When created this object is merged with the value of `RendererLayer.Types[type]`.