Add ScriptingObjectReference for Read/WriteStream and scripting interop as an array

Source/Engine/Scripting/ManagedCLR/MUtils.h

@@ -257,6 +257,38 @@ struct MConverter<T, typename TEnableIf<TIsBaseOf<class ScriptingObject, T>::Val
     }
 };
 
+// Converter for ScriptingObject References.
+template<typename T>
+class ScriptingObjectReference;
+
+template<typename T>
+struct MConverter<ScriptingObjectReference<T>>
+{
+    MonoObject* Box(const ScriptingObjectReference<T>& data, MonoClass* klass)
+    {
+        return data.GetManagedInstance();
+    }
+
+    void Unbox(ScriptingObjectReference<T>& result, MonoObject* data)
+    {
+        result = (T*)ScriptingObject::ToNative(data);
+    }
+
+    void ToManagedArray(MonoArray* result, const Span<ScriptingObjectReference<T>>& data)
+    {
+        for (int32 i = 0; i < data.Length(); i++)
+            mono_array_setref(result, i, data[i].GetManagedInstance());
+    }
+
+    template<typename AllocationType = HeapAllocation>
+    void ToNativeArray(Array<ScriptingObjectReference<T>, AllocationType>& result, MonoArray* data, int32 length)
+    {
+        result.Resize(length);
+        for (int32 i = 0; i < length; i++)
+            result[i] = (T*)ScriptingObject::ToNative(mono_array_get(data, MonoObject*, i));
+    }
+};
+
 // Converter for Asset References.
 template<typename T>
 class AssetReference;

Source/Engine/Serialization/ReadStream.h

@@ -5,10 +5,6 @@
 #include "Stream.h"
 #include "Engine/Core/Templates.h"
 
-struct CommonValue;
-struct Variant;
-struct VariantType;
-class ISerializable;
 extern FLAXENGINE_API class ScriptingObject* FindObject(const Guid& id, class MClass* type);
 
 /// <summary>
@@ -156,6 +152,14 @@ public:
         data = (T*)::FindObject(*(Guid*)id, T::GetStaticClass());
     }
 
+    template<typename T>
+    FORCE_INLINE void Read(ScriptingObjectReference<T>& v)
+    {
+        T* ptr;
+        Read(ptr);
+        v = ptr;
+    }
+
     /// <summary>
     /// Read data array
     /// </summary>

Source/Engine/Serialization/Stream.h

@@ -8,9 +8,15 @@
 #define FILESTREAM_BUFFER_SIZE 4096
 #define STREAM_MAX_STRING_LENGTH (4*1024) // 4 kB
 
-// Forward declarations
 class ReadStream;
 class WriteStream;
+struct CommonValue;
+struct Variant;
+struct VariantType;
+class ISerializable;
+class ScriptingObject;
+template<typename T>
+class ScriptingObjectReference;
 
 /// <summary>
 /// Base class for all data streams (memory streams, file streams etc.)

Source/Engine/Serialization/WriteStream.h

@@ -5,12 +5,6 @@
 #include "Stream.h"
 #include "Engine/Core/Templates.h"
 
-struct CommonValue;
-struct Variant;
-struct VariantType;
-class ISerializable;
-class ScriptingObject;
-
 /// <summary>
 /// Base class for all data write streams
 /// </summary>
@@ -177,6 +171,12 @@ public:
         WriteBytes(id, sizeof(id));
     }
 
+    template<typename T>
+    FORCE_INLINE void Write(const ScriptingObjectReference<T>& v)
+    {
+        Write(v.Get());
+    }
+
     template<typename T, typename AllocationType = HeapAllocation>
     void Write(const Array<T, AllocationType>& data)
     {