// Get Programming with JavaScript

// Listings 16.04 to 16.10

// The game controller

​

(function () {

​

  // 16.05

  var player;

  var inPlay = false;

​

  var init = function (mapData, playerName) {

    var firstPlace = theCrypt.buildMap(mapData);

    player = new theCrypt.Player(playerName, 50);

    player.addItem("The Sword of Doom");

    player.setPlace(firstPlace);

    inPlay = true;

    render();

    return "";

  };

  // 16.06

  var checkGameStatus = function () {

    if (player.getData().health <= 0) {

        inPlay = false;

        renderMessage("Overcome by your wounds...");

        renderMessage("...you fall to the ground.");

        renderMessage("- Your adventure is over -");

    }

  };

​

  // 16.07

  var render = function () {

    console.clear();

    if (inPlay) {

      theCrypt.placeView.render(player.getPlace());

      theCrypt.playerView.render(player);   

    }

  };

​

  var renderMessage = function (message) {

    theCrypt.messageView.render(message);

  };

​

  // 16.08

  var get = function () {

    if (inPlay) {

      var place = player.getPlace();

      var item = place.getLastItem();

​

      if (item !== undefined) {

        player.addItem(item);

        render();

      } else {

        renderMessage("There is no item to get");

      }

    } else {

      renderMessage("The game is over!");

    }

    return "";

  };

  // 16.09

  var go = function (direction) {

    if (inPlay) {

      var place = player.getPlace();

      var destination = place.getExit(direction);

      var challenge = place.getChallenge(direction);

​

      if (destination === undefined) {

          renderMessage("There is no exit in that direction");

      } else {

          if ((challenge === undefined) || challenge.complete) {

              player.setPlace(destination);

              render();

          } else {

              if (challenge.damage) {

                  player.applyDamage(challenge.damage);

              }

              render();

              renderMessage(challenge.message);

              checkGameStatus();

          }

      }

    } else {

      renderMessage("The game is over!");

    }

    return "";

  };

​

  // 16.10

  var use = function (item, direction) {

      if (inPlay) {

        var place = player.getPlace();

        var challenge = place.getChallenge(direction);

        if (challenge === undefined || challenge.complete === true) {

          renderMessage("You don't need to use that there");

        } else if (player.hasItem(item)) {

          if (item === challenge.requires) {

            renderMessage(challenge.success);

            challenge.complete = true;

            if (challenge.itemConsumed) {

              player.removeItem(item);

            }

          } else {

            renderMessage(challenge.failure);

          }

        } else {

          renderMessage("You don't have that item");

        }

      } else {

        renderMessage("The game is over!");

      }

      return "";

  };

  // 16.04

  // Assign the public interface

  window.game = {

    get: get,

    go: go,

    use: use,

    init: init

  };

​

})();

​

​

/* Further Adventures

 *

 * The game controller uses the other

 * modules created for The Crypt in

 * Chapters 14 and 15.

 *

 * The controller is tested in

 * listings 16.11 and 16.12.

 *

 * As you progress through the discussions

 * in chapter 16, make sure you see

 * how each function plays its part

 * in making the game work.

 *

 */