How to make a clone or copy of a UObject in a blueprint

Development Programming & Scripting Blueprint
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1

wtf
wtf1994×952 167 KB

There must be some way of doing this, surely, without defining a method like in the screenshot. Just take the object, make a copy, give me the copy.

Note I specifically do not want a reference (pointer) to the original object. I want a completely separate, identical copy of the object, such that if I change object B, object A’s properties are not affected in any way whatsoever.

Completely separate. I must have missed something here? It’s so fundamental to be able to clone or copy an object, there must be some kind of way to do this in blueprints?!

2

You ever figure this out?

3

There is no way without cpp unfortunatly.
But if you know how to add cpp to your project here is the code that will generate this node.
image

.h

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image1070×459 38.2 KB

.cpp
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image842×403 27.6 KB

.h 
#pragma once

#include "CoreMinimal.h"
#include "Kismet/BlueprintFunctionLibrary.h"
#include "UObject/UObjectGlobals.h"
#include "MyGameBPFunctionLibrary.generated.h"

UCLASS()
class MYGAME_API UMyGameBPFunctionLibrary : public UBlueprintFunctionLibrary
{
	GENERATED_BODY()

	UFUNCTION(BlueprintCallable, meta = (DeterminesOutputType = "SourceObject", DefaultToSelf="Outer"),Category="MyGame Utilities")
	static UObject* DuplicateObject(UObject const* SourceObject,UObject* Outer);
	
};
.cpp 
#include "MyGameBPFunctionLibrary.h"

UObject* UMyGameBPFunctionLibrary::DuplicateObject(UObject const* SourceObject,UObject* Outer)
{
	if(IsValid(SourceObject) && IsValid(Outer))
	{
		const FName DuplicatedObjectName = MakeUniqueObjectName(Outer,SourceObject->StaticClass());
		return StaticDuplicateObject(SourceObject,Outer,DuplicatedObjectName);
	}
	else
	{
		return nullptr;
	}
}
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