// getDirection.js

(function() {
  /*global adventurejs A*/ 
  "use strict";

	var p = adventurejs.Dictionary.prototype;

  /**
   * 
   * @memberOf adventurejs.Dictionary
   * @method adventurejs.Dictionary#getDirection
   * @param {String} word A direction name. 
   * Directions can have aliases, 
   * for example 'ne' as a shortcut for 'northeast'.
   * When player inputs an alias, we want to lookup the primary name, 
   * which we need to get the direction object.
   * @returns {String} The primary direction name.
   */
   p.getDirection = function Dictionary_getDirection( word ) 
  {
		if(typeof this.directionLookup[word] !== "undefined" )
    {
			return(word);
		}
		for (var prop in this.directionLookup) 
    {
			if("undefined" === typeof this.directionLookup[prop].synonyms) 
      {
				continue;
			}
			var synonyms = this.directionLookup[prop].synonyms;
			for(var i = 0; i < synonyms.length;i++) 
      {
				if(word===synonyms[i]) {
					// found a synonym, return the base word
					return prop;
				}
			}
		}
		return false;
	}
  
}());