// selectGlobalSubstance.js

(function () {
  /*global adventurejs A*/

  var p = adventurejs.Parser.prototype;

  /**
   * Exclude from a list of assets all assets that are not global substances.
   * @method adventurejs.Parser#selectGlobalSubstance
   * @memberOf adventurejs.Parser
   * @param {Array} list
   * @returns {Array}
   */
  p.selectGlobalSubstance = function Parser_selectGlobalSubstance(list) {
    if (typeof list !== "object") {
      console.warn("selectGlobalSubstance received non-array", list);
      return [];
    }
    var foundObjects = [];
    for (var i = 0; i < list.length; i++) {
      var object = list[i];
      var asset_aspect_substance = object.split(":");
      if (1 < asset_aspect_substance.length) {
        // discard substance-in-tangible
        continue;
      } else {
        object = this.game.getAsset(list[i]);
      }

      if (object instanceof adventurejs.Substance) {
        foundObjects.push(list[i]);
      }
    }

    return foundObjects;
  };
})();