// canSetVerbState.js
(function() {
	/*global adventurejs A*/ 
  "use strict";
  var p = adventurejs.Asset.prototype;	
  /**
   * <strong>canSetVerbState</strong> is a method to check whether 
   * the specified verb can set state on this asset. Assumes that 
   * asset.dov[verb].enabled is true
   * @memberOf adventurejs.Asset
   * @method adventurejs.Asset#canSetVerbState
   * @param {String} verb
   * @returns {Boolean}
   */

  p.canSetVerbState = function Asset_canSetVerbState(verb)
  {
    if( !this.game.dictionary.verbs[verb] ) return false;
    if( !this.game.dictionary.verbs[verb].state 
      && !this.game.dictionary.verbs[verb].unstate ) return false;
    if( !this.dov[verb]?.enabled ) return false;

    verb = this.game.dictionary.verbs[verb];

    // ex: do verb close to this and this.is.closed
    if( verb.state && this.is[verb.state] ) return false;

    // ex: do verb open to this and !this.is.closed
    if( verb.unstate && !this.is[verb.unstate] ) return false;

    return true;
  }
}());