// removeAssetAt.js
(function () {
  /*global adventurejs A*/
  "use strict";
  var p = adventurejs.Tangible.prototype;
  /**
   * Remove specified asset id from the contents of
   * specified aspect on this asset.
   * Returns contents if aspect exists, or null.
   * @memberOf adventurejs.Tangible
   * @method adventurejs.Tangible#removeAssetAt
   * @return {Array}
   */
  p.removeAssetAt = function Tangible_removeAssetAt(id, aspect) {
    if (this.hasAspectAt(aspect)) {
      if (-1 < this.aspects[aspect].contents.indexOf(id)) {
        this.aspects[aspect].contents.splice(
          this.aspects[aspect].contents.indexOf(id),
          1
        );
      }
      return this.aspects[aspect].contents;
    }
    return null;
  };
})();