// areAnscestorsKnown.js
(function () {
  /*global adventurejs A*/
  var p = adventurejs.Tangible.prototype;
  /**
   * Checks to see if this asset and its containing parent(s)
   * are known to player. Takes into account nesting doll
   * situations and looks all the way up the chain.
   * Useful for determining whether a player can "see"
   * a nested object.
   * @memberOf adventurejs.Tangible
   * @method adventurejs.Tangible#areAnscestorsKnown
   * @returns {Boolean}
   */
  p.areAnscestorsKnown = function Tangible_AreThisAndAnscestorsKnown() {
    var input = this.game.getInput();
    var subject = input.getSubject();
    var parent_is_known = true;
    var parent = this.getPlaceAsset();

    if (
      parent &&
      "undefined" !== typeof parent.is.known &&
      "undefined" !== typeof parent.areAnscestorsKnown
    ) {
      parent_is_known = parent.areAnscestorsKnown();
    }
    if (subject.knowsAbout(this) && parent_is_known) {
      return true;
    } else {
      return false;
    }
  };
})();