Fixes for world simulation without Web Workers

Primarily for IE9, which is still blocked by box2d issues with these
changes.

Forcing vendor.js instead of vendor_with_box2d.js in main.html allows
you to load a level in IE9, but without Collision-based movement.

Work in progress.

app/lib/Angel.coffee

@@ -210,6 +210,11 @@ module.exports = class Angel extends CocoClass
     @hireWorker() if rehire
 
   hireWorker: ->
+    unless Worker?
+      unless @initialized
+        @initialized = true
+        @doWork()
+      return null
     return if @worker
     @say 'Hiring worker.'
     @worker = new Worker @shared.workerCode
@@ -243,11 +248,12 @@ module.exports = class Angel extends CocoClass
 
     # If performance was really a priority in IE9, we would rework things to be able to skip this step.
     goalStates = testGM?.getGoalStates()
-    serialized = testWorld.serialize().serializedWorld
+    work.testWorld.goalManager.worldGenerationEnded() if work.testWorld.ended
+    serialized = testWorld.serialize()
     window.BOX2D_ENABLED = false
-    World.deserialize serialized, @angelsShare.worldClassMap, @shared.lastSerializedWorldFrames, @finishBeholdingWorld(goalStates)
+    World.deserialize serialized.serializedWorld, @shared.worldClassMap, @shared.lastSerializedWorldFrames, @finishBeholdingWorld(goalStates), serialized.startFrame, serialized.endFrame
     window.BOX2D_ENABLED = true
-    @shared.lastSerializedWorldFrames = serialized.frames
+    @shared.lastSerializedWorldFrames = serialized.serializedWorld.frames
 
   doSimulateWorld: (work) ->
     work.t1 = now()
@@ -258,6 +264,7 @@ module.exports = class Angel extends CocoClass
     i = 0
     while i < work.testWorld.totalFrames
       frame = work.testWorld.getFrame i++
+    Backbone.Mediator.publish 'god:world-load-progress-changed', progress: 1
     work.testWorld.ended = true
     system.finish work.testWorld.thangs for system in work.testWorld.systems
     work.t2 = now()

app/views/play/level/tome/Spell.coffee

@@ -110,19 +110,22 @@ module.exports = class Spell
     unless aether
       console.error @toString(), 'couldn\'t find a spellThang with aether of', @thangs
       cb false
-    workerMessage =
-      function: 'hasChangedSignificantly'
-      a: (newSource ? @originalSource)
-      spellKey: @spellKey
-      b: (currentSource ? @source)
-      careAboutLineNumbers: true
-      careAboutLint: true
-    @worker.addEventListener 'message', (e) =>
-      workerData = JSON.parse e.data
-      if workerData.function is 'hasChangedSignificantly' and workerData.spellKey is @spellKey
-        @worker.removeEventListener 'message', arguments.callee, false
-        cb(workerData.hasChanged)
-    @worker.postMessage JSON.stringify(workerMessage)
+    if @worker
+      workerMessage =
+        function: 'hasChangedSignificantly'
+        a: (newSource ? @originalSource)
+        spellKey: @spellKey
+        b: (currentSource ? @source)
+        careAboutLineNumbers: true
+        careAboutLint: true
+      @worker.addEventListener 'message', (e) =>
+        workerData = JSON.parse e.data
+        if workerData.function is 'hasChangedSignificantly' and workerData.spellKey is @spellKey
+          @worker.removeEventListener 'message', arguments.callee, false
+          cb(workerData.hasChanged)
+      @worker.postMessage JSON.stringify(workerMessage)
+    else
+      cb(aether.hasChangedSignificantly((newSource ? @originalSource), (currentSource ? @source), true, true))
 
   createAether: (thang) ->
     aceConfig = me.get('aceConfig') ? {}
@@ -130,11 +133,12 @@ module.exports = class Spell
     skipProtectAPI = @skipProtectAPI or not writable
     aetherOptions = createAetherOptions functionName: @name, codeLanguage: @language, functionParameters: @parameters, skipProtectAPI: skipProtectAPI
     aether = new Aether aetherOptions
-    workerMessage =
-      function: 'createAether'
-      spellKey: @spellKey
-      options: aetherOptions
-    @worker.postMessage JSON.stringify workerMessage
+    if @worker
+      workerMessage =
+        function: 'createAether'
+        spellKey: @spellKey
+        options: aetherOptions
+      @worker.postMessage JSON.stringify workerMessage
     aether
 
   updateLanguageAether: (@language) ->
@@ -142,10 +146,11 @@ module.exports = class Spell
       spellThang.aether?.setLanguage @language
       spellThang.castAether = null
       Backbone.Mediator.publish 'tome:spell-changed-language', spell: @, language: @language
-    workerMessage =
-      function: 'updateLanguageAether'
-      newLanguage: @language
-    @worker.postMessage JSON.stringify workerMessage
+    if @worker
+      workerMessage =
+        function: 'updateLanguageAether'
+        newLanguage: @language
+      @worker.postMessage JSON.stringify workerMessage
     @transpile()
 
   toString: ->

app/views/play/level/tome/SpellView.coffee

@@ -400,19 +400,23 @@ module.exports = class SpellView extends CocoView
 
       @clearAetherDisplay()
       if codeHasChangedSignificantly and not codeIsAsCast
-        workerMessage =
-          function: 'transpile'
-          spellKey: @spell.spellKey
-          source: source
+        if @worker
+          workerMessage =
+            function: 'transpile'
+            spellKey: @spell.spellKey
+            source: source
 
-        @worker.addEventListener 'message', (e) =>
-          workerData = JSON.parse e.data
-          if workerData.function is 'transpile' and workerData.spellKey is @spell.spellKey
-            @worker.removeEventListener 'message', arguments.callee, false
-            aether.problems = workerData.problems
-            aether.raw = source
-            finishUpdatingAether(aether)
-        @worker.postMessage JSON.stringify(workerMessage)
+          @worker.addEventListener 'message', (e) =>
+            workerData = JSON.parse e.data
+            if workerData.function is 'transpile' and workerData.spellKey is @spell.spellKey
+              @worker.removeEventListener 'message', arguments.callee, false
+              aether.problems = workerData.problems
+              aether.raw = source
+              finishUpdatingAether(aether)
+          @worker.postMessage JSON.stringify(workerMessage)
+        else
+          aether.transpile source
+          finishUpdatingAether(aether)
       else
         finishUpdatingAether(aether)
 

app/views/play/level/tome/TomeView.coffee

@@ -89,6 +89,7 @@ module.exports = class TomeView extends CocoView
     @cast()
 
   createWorker: ->
+    return null unless Worker?
     return new Worker('/javascripts/workers/aether_worker.js')
 
   generateTeamSpellMap: (spellObject) ->