Fixes for updating paths during world streaming.

app/lib/Angel.coffee

@@ -130,7 +130,7 @@ module.exports = class Angel extends CocoClass
     eventType = if finished then 'god:new-world-created' else 'god:streaming-world-updated'
     if finished
       @shared.world = world
-    Backbone.Mediator.publish eventType, world: world, firstWorld: @shared.firstWorld, goalStates: goalStates, team: me.team, firstChangedFrame: firstChangedFrame
+    Backbone.Mediator.publish eventType, world: world, firstWorld: @shared.firstWorld, goalStates: goalStates, team: me.team, firstChangedFrame: firstChangedFrame, finished: finished
     if finished
       for scriptNote in @shared.world.scriptNotes
         Backbone.Mediator.publish scriptNote.channel, scriptNote.event

app/lib/surface/Surface.coffee

@@ -455,7 +455,10 @@ module.exports = Surface = class Surface extends CocoClass
       else
         @fastForwardingToFrame = @fastForwardingSpeed = null
 #    console.log "on new world, lag", lag, "intended lag", intendedLag, "fastForwardingToFrame", @fastForwardingToFrame, "speed", @fastForwardingSpeed, "cause we are at", @world.age, "of", @world.frames.length * @world.dt
-    @updatePaths()
+    if event.finished
+      @updatePaths()
+    else
+      @hidePaths()
 
   onIdleChanged: (e) ->
     @setPaused e.idle unless @ended

app/lib/world/world.coffee

@@ -472,9 +472,13 @@ 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, level.levelComponents)
-        w.setThang thang
+      for thangConfig in o.thangs
+        if thang = w.thangMap[thangConfig.id]
+          for prop, val of thangConfig.finalState
+            thang[prop] = val
+        else
+          w.thangs.push thang = Thang.deserialize(thangConfig, w, classMap, level.levelComponents)
+          w.setThang thang
     else
       w.thangs = (Thang.deserialize(thang, w, classMap, level.levelComponents) for thang in o.thangs)
       w.setThang thang for thang in w.thangs

app/schemas/subscriptions/god.coffee

@@ -24,6 +24,7 @@ worldUpdatedEventSchema = c.object {required: ['world', 'firstWorld', 'goalState
   goalStates: goalStatesSchema
   team: {type: 'string'}
   firstChangedFrame: {type: 'integer', minimum: 0}
+  finished: {type: 'boolean'}
 
 module.exports =
   'god:user-code-problem': c.object {required: ['problem']},