levels starting

src/js/level/arbiter.js

@@ -0,0 +1,63 @@
+var _ = require('underscore');
+var Backbone = require('backbone');
+
+// Each level is part of a "sequence;" levels within
+// a sequence proceed in order.
+
+var levelSequences = {
+  intro: [
+    require('../../levels/intro/1'),
+    require('../../levels/intro/2')
+  ],
+  rebase: [
+    require('../../levels/rebase/1'),
+    require('../../levels/rebase/2')
+  ]
+};
+
+function LevelArbiter() {
+  this.levelMap = {};
+  this.init();
+}
+
+LevelArbiter.prototype.init = function() {
+
+  var previousLevelID;
+  _.each(levelSequences, function(levels, levelSequenceName) {
+    // for this particular sequence...
+    _.each(levels, function(level) {
+      this.validateLevel(level);
+      this.levelMap[level.id] = level;
+
+      // build up the chaining between levels
+      if (previousLevelID) {
+        this.levelMap[previousLevelID]['nextLevelID'] = level.id;
+      }
+      previousLevelID = level.id;
+    }, this);
+  }, this);
+};
+
+LevelArbiter.prototype.validateLevel = function(level) {
+  level = level || {};
+  var requiredFields = [
+    'id',
+    'name',
+    'goalTree',
+    'solutionCommand'
+  ];
+
+  var optionalFields = [
+    'hint',
+    'disabledMap'
+  ];
+
+  _.each(requiredFields, function(field) {
+    if (level[field] === undefined) {
+      throw new Error('I need this field for a level: ' + field);
+    }
+  })
+};
+
+exports.LevelArbiter = LevelArbiter;
+

src/js/level/index.js

@@ -43,15 +43,15 @@ var Level = Sandbox.extend({
   },
 
   initName: function(options) {
-    this.levelName = options.levelName;
-    this.levelID = options.levelID;
-    if (!this.levelName || !this.levelID) {
-      this.levelName = 'Rebase Classic';
+    this.name = options.name;
+    this.id = options.id;
+    if (!this.name || !this.id) {
+      this.name = 'Rebase Classic';
       console.warn('REALLY BAD FORM need ids and names');
     }
 
     this.levelToolbar = new LevelToolbar({
-      levelName: this.levelName
+      name: this.name
     });
   },
 
@@ -89,9 +89,6 @@ var Level = Sandbox.extend({
   },
 
   initVisualization: function(options) {
-    if (!options.level.startTree) {
-      console.warn('No start tree specified for this level!!! using default...');
-    }
     this.mainVis = new Visualization({
       el: options.el || this.getDefaultVisEl(),
       treeString: options.level.startTree

src/js/views/gitDemonstrationView.js

@@ -0,0 +1,12 @@
+var _ = require('underscore');
+var Q = require('q');
+// horrible hack to get localStorage Backbone plugin
+var Backbone = (!require('../util').isBrowser()) ? require('backbone') : window.Backbone;
+
+var ModalTerminal = require('../views').ModalTerminal;
+var ContainedBase = require('../views').ContainedBase;
+var ConfirmCancelView = require('../views').ConfirmCancelView;
+var LeftRightView = require('../views').LeftRightView;
+var ModalAlert = require('../views').ModalAlert;
+var KeyboardListener = require('../util/keyboard').KeyboardListener;
+

src/js/views/index.js

@@ -348,7 +348,7 @@ var LevelToolbar = BaseView.extend({
   initialize: function(options) {
     options = options || {};
     this.JSON = {
-      levelName: options.levelName || 'Some level! (unknown name)'
+      name: options.name || 'Some level! (unknown name)'
     };
 
     this.beforeDestination = $($('#commandLineHistory div.toolbar')[0]);