Test PR of lazy load of ghosts and scene streaming

For now scene streaming only affects how subscenes are loaded. If you try it on everything in a scene expect issues as the namespaces are not linked up at that point.

This is a TEST! Do not merge! If you do you will open up a gate to an alternate reality where all that you believe will cease to exist in an endless void of darkness.

Engine/source/console/sim.cpp

@@ -266,3 +266,18 @@ DefineEngineFunction( isValidObjectName, bool, (const char * name), , "( string
 }
 
 ConsoleFunctionGroupEnd( SimFunctions );
+
+void SceneStreaming::processTick()
+{
+   if (smStreaming)
+   {
+      for (U32 i = 0; i < mMaxObjects && !smPendingRegister.empty(); i++)
+      {
+         SimObject* obj = smPendingRegister.first();
+         smPendingRegister.pop_front();
+
+         if (!obj->onAdd())
+            obj->unregisterObject();
+      }
+   }
+}

Engine/source/console/sim.h

@@ -35,6 +35,9 @@
 #ifndef _CONSOLE_H_
 #include "console/console.h"
 #endif
+#ifndef _ITICKABLE_H_
+#include "core/iTickable.h"
+#endif
 
 // Forward Refs
 class SimSet;
@@ -44,6 +47,21 @@ class SimObject;
 class SimEvent;
 class Stream;
 
+class SceneStreaming : public virtual ITickable
+{
+protected:
+   U32 mMaxObjects = 20;
+public:
+   SceneStreaming(){}
+   ~SceneStreaming() {}
+    bool smStreaming;
+   Vector<SimObject*> smPendingRegister;
+
+   void interpolateTick(F32 delta) override {return;}
+   void processTick() override;
+   void advanceTime(F32 timeDelta) override { return; }
+};
+
 // Sim Types
 typedef U32 SimTime;
 typedef U32 SimObjectId;

Engine/source/console/simManager.cpp

@@ -280,6 +280,7 @@ U32 getTargetTime()
 
 SimGroup *gRootGroup = NULL;
 SimManagerNameDictionary *gNameDictionary;
+SceneStreaming* sgStreamingInstance = NULL;
 SimIdDictionary *gIdDictionary;
 U32 gNextObjectId;
 
@@ -287,7 +288,8 @@ static void initRoot()
 {
    gIdDictionary = new SimIdDictionary;
    gNameDictionary = new SimManagerNameDictionary;
-
+   sgStreamingInstance = new SceneStreaming;
+   sgStreamingInstance->smStreaming = false;
    gRootGroup = new SimGroup();
    gRootGroup->incRefCount();
  
@@ -305,6 +307,7 @@ static void shutdownRoot()
       gRootGroup->deleteObject();
    gRootGroup = NULL;
 
+   SAFE_DELETE(sgStreamingInstance);
    SAFE_DELETE(gNameDictionary);
    SAFE_DELETE(gIdDictionary);
 }

Engine/source/console/simObject.cpp

@@ -43,6 +43,7 @@
 #include "console/script.h"
 
 #include "sim/netObject.h"
+#include "scene/sceneObject.h"
 
 ImplementBitfieldType(GameTypeMasksType,
    "The type of animation effect to apply to this material.\n"
@@ -109,6 +110,7 @@ namespace Sim
    // Defined in simManager.cpp
    extern SimGroup *gRootGroup;
    extern SimManagerNameDictionary *gNameDictionary;
+   extern SceneStreaming* sgStreamingInstance;
    extern SimIdDictionary *gIdDictionary;
    extern U32 gNextObjectId;
 }
@@ -725,6 +727,12 @@ bool SimObject::registerObject()
 
    Sim::gNameDictionary->insert(this);
 
+   if (Sim::sgStreamingInstance->smStreaming && dynamic_cast<SceneObject*>(this))
+   {
+      Sim::sgStreamingInstance->smPendingRegister.push_back(this);
+      return true; // pretend success
+   }
+
    // Notify object
    bool ret = onAdd();
 

Engine/source/console/simObject.h

@@ -40,7 +40,10 @@
 #ifndef _TAML_CALLBACKS_H_
 #include "persistence/taml/tamlCallbacks.h"
 #endif
+
+#ifndef _OBJECTTYPES_H_
 #include "T3D/objectTypes.h"
+#endif
 
 class Stream;
 class LightManager;