/* Get Programming with JavaScript

 * Listing 14.06

 * The map builder

 */

​

(function () {

  var buildMap = function (mapData) {  

    var placesStore = {};

    var buildPlace = function (placeData) {

      var place = new theCrypt.Place(placeData.title, placeData.description);

      if (placeData.items !== undefined) {

        placeData.items.forEach(place.addItem);

      }

      placesStore[placeData.title] = place;

    };

    var buildExits = function (placeData) {

      var here = placesStore[placeData.title];

      if (placeData.exits !== undefined) {

        placeData.exits.forEach(function (exit) {

          var there = placesStore[exit.to];

          here.addExit(exit.direction, there);

          here.addChallenge(exit.direction, exit.challenge);                            

        });

      }    

    };

    // create all places

    mapData.places.forEach(buildPlace);

    // link places together

    mapData.places.forEach(buildExits);

    return placesStore[mapData.firstPlace];  

  };

  if (window.theCrypt === undefined) {

    window.theCrypt = {};

  }

  theCrypt.buildMap = buildMap;

})();

​

​

/* Further Adventures

 *

 * The buildMap function uses

 * the Place constructor and needs

 * some map data to work on.

 *

 * Listing 14.08 shows a working

 * example that imports all the

 * modules needed.

 *

 */