Fixed building Thangs with new Components that no other Thang uses. Fixed THangs with id 0 in the level editor.

app/lib/Angel.coffee

@@ -119,7 +119,7 @@ module.exports = class Angel extends CocoClass
     return if @aborting
     # Toggle BOX2D_ENABLED during deserialization so that if we have box2d in the namespace, the Collides Components still don't try to create bodies for deserialized Thangs upon attachment.
     window.BOX2D_ENABLED = false
-    @streamingWorld = World.deserialize serialized, @shared.worldClassMap, @shared.lastSerializedWorldFrames, @finishBeholdingWorld(goalStates), startFrame, endFrame, streamingWorld
+    @streamingWorld = World.deserialize serialized, @shared.worldClassMap, @shared.lastSerializedWorldFrames, @finishBeholdingWorld(goalStates), startFrame, endFrame, @work.level, streamingWorld
     window.BOX2D_ENABLED = true
     @shared.lastSerializedWorldFrames = serialized.frames
 
@@ -253,7 +253,7 @@ module.exports = class Angel extends CocoClass
     work.testWorld.goalManager.worldGenerationEnded() if work.testWorld.ended
     serialized = testWorld.serialize()
     window.BOX2D_ENABLED = false
-    World.deserialize serialized.serializedWorld, @shared.worldClassMap, @shared.lastSerializedWorldFrames, @finishBeholdingWorld(goalStates), serialized.startFrame, serialized.endFrame
+    World.deserialize serialized.serializedWorld, @shared.worldClassMap, @shared.lastSerializedWorldFrames, @finishBeholdingWorld(goalStates), serialized.startFrame, work.level, serialized.endFrame
     window.BOX2D_ENABLED = true
     @shared.lastSerializedWorldFrames = serialized.serializedWorld.frames
 

app/lib/world/thang.coffee

@@ -151,10 +151,14 @@ module.exports = class Thang
     o.unusedTrackedPropertyKeys = (@trackedPropertiesKeys[propIndex] for used, propIndex in @trackedPropertiesUsed when not used)
     o
 
-  @deserialize: (o, world, classMap) ->
+  @deserialize: (o, world, classMap, levelComponents) ->
     t = new Thang world, o.spriteName, o.id
     for [componentClassName, componentConfig] in o.components
-      componentClass = classMap[componentClassName]
+      unless componentClass = classMap[componentClassName]
+        console.debug 'Compiling new Component while deserializing:', componentClassName
+        componentModel = _.find levelComponents, name: componentClassName
+        componentClass = world.loadClassFromCode componentModel.js, componentClassName, 'component'
+        world.classMap[componentClassName] = componentClass
       t.addComponents [componentClass, componentConfig]
     t.unusedTrackedPropertyKeys = o.unusedTrackedPropertyKeys
     t.unusedTrackedPropertyValues = (t[prop] for prop in o.unusedTrackedPropertyKeys)

app/lib/world/world.coffee

@@ -436,7 +436,7 @@ module.exports = class World
       console.log 'Whoa, serializing a lot of WorldScriptNotes here:', o.scriptNotes.length
     {serializedWorld: o, transferableObjects: [o.storageBuffer], startFrame: startFrame, endFrame: endFrame}
 
-  @deserialize: (o, classMap, oldSerializedWorldFrames, finishedWorldCallback, startFrame, endFrame, streamingWorld) ->
+  @deserialize: (o, classMap, oldSerializedWorldFrames, finishedWorldCallback, startFrame, endFrame, level, streamingWorld) ->
     # Code hotspot; optimize it
     #console.log 'Deserializing', o, 'length', JSON.stringify(o).length
     #console.log JSON.stringify(o)
@@ -461,10 +461,10 @@ module.exports = class World
     perf.t1 = now()
     if w.thangs.length
       for thangConfig in o.thangs when not w.thangMap[thangConfig.id]
-        w.thangs.push thang = Thang.deserialize(thangConfig, w, classMap)
+        w.thangs.push thang = Thang.deserialize(thangConfig, w, classMap, level.levelComponents)
         w.setThang thang
     else
-      w.thangs = (Thang.deserialize(thang, w, classMap) for thang in o.thangs)
+      w.thangs = (Thang.deserialize(thang, w, classMap, level.levelComponents) for thang in o.thangs)
       w.setThang thang for thang in w.thangs
     w.scriptNotes = (WorldScriptNote.deserialize(sn, w, classMap) for sn in o.scriptNotes)
     perf.t2 = now()

app/views/editor/level/thangs/ThangsTabView.coffee

@@ -52,7 +52,7 @@ module.exports = class ThangsTabView extends CocoView
     'click #thangs-palette-toggle': 'toggleThangsPalette'
 #    'click .add-thang-palette-icon': 'toggleThangsPalette'
     'click #rotation-menu-item button': 'onClickRotationButton'
-  
+
   shortcuts:
     'esc': 'selectAddThang'
     'delete, del, backspace': 'deleteSelectedExtantThang'
@@ -501,7 +501,7 @@ module.exports = class ThangsTabView extends CocoView
     # foldered thangs -> array of thangs
     flattened = []
     for key, value of thangs
-      if value.id and value.thangType
+      if value.id? and value.thangType
         flattened.push value
       else
         flattened = flattened.concat @flattenThangs(value)
@@ -621,7 +621,7 @@ module.exports = class ThangsTabView extends CocoView
     $('#contextmenu').show()
 
   #- Context menu callbacks
-    
+
   onDeleteClicked: (e) ->
     $('#contextmenu').hide()
     @deleteSelectedExtantThang e
@@ -634,7 +634,7 @@ module.exports = class ThangsTabView extends CocoView
     $('#contextmenu').hide()
     rotation = parseFloat($(e.target).closest('button').data('rotation'))
     @rotateSelectedThangBy rotation * Math.PI
-    
+
   rotateSelectedThangBy: (radians) ->
     return unless @selectedExtantThang
     @hush = true
@@ -645,7 +645,7 @@ module.exports = class ThangsTabView extends CocoView
     @thangsTreema.set(@pathForThang(thangData), thangData)
     @hush = false
     @onThangsChanged()
-    
+
   toggleThangsContainer: (e) ->
     $('#all-thangs').toggleClass('hide')
 
@@ -675,10 +675,10 @@ class ThangsFolderNode extends TreemaNode.nodeMap.object
     valEl.append(el)
 
   countThangs: (data) ->
-    return 0 if data.thangType and data.id
+    return 0 if data.thangType and data.id?
     num = 0
     for key, value of data
-      if value.thangType and value.id
+      if value.thangType and value.id?
         num += 1
       else
         num += @countThangs(value)