[Quick BP to C++] Core Redirector - Asset to C++

General Issues and Bug Reporting
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1

Added a struct core redirector in \Config\DefaultEngine.ini, tested in the following formats (not all at once):

[CoreRedirects]
+StructRedirects=(OldName="/Game/_Core/Data/Structs/World/Weather/Seasonal/S_OLD_Weather_Season.S_OLD_Weather_Season",NewName="/Script/GameCore.S_WeatherSeason")
+StructRedirects=(OldName="/Game/_Core/Data/Structs/World/Weather/Seasonal/S_OLD_Weather_Season",NewName="/Script/GameCore.S_WeatherSeason")
+StructRedirects=(OldName="/Game/_Core/Data/Structs/World/Weather/Seasonal/S_OLD_Weather_Season",NewName="S_WeatherSeason")
+StructRedirects=(OldName="S_OLD_Weather_Season",NewName="/Script/GameCore.S_WeatherSeason")
+StructRedirects=(OldName="S_OLD_Weather_Season",NewName="S_WeatherSeason")
+StructRedirects=(OldName="S_OLD_Weather_Season.S_OLD_Weather_Season",NewName="S_Weather_Season")
+StructRedirects=(OldName="S_OLD_Weather_Planetary",NewName="/Script/GameCore.S_WeatherPlanetary",OverrideClassName="/Script/CoreUObject.Struct")

Redirector is supposed to redirect a blueprint struct asset to a c++ USTRUCT (BlueprintType), however it does not redirect anything. The rules in this example were added one by one during testing. Adding multiple lines at once results in a logged message that there are “conflicting rules”.

Expectation:
Properties, datatables, BP nodes using old struct datatype (BP) should be redirected to c++ datatype.

Actual result:
Nothing happens.

2

bump

3

Can this be automated or am I going to spend all summer on manually making / breaking / clicky clicky blueprint nodes?

4

bump :yum: :arrows_counterclockwise: :arrow_heading_up: :up:

5

bumpp

6

:coffee:

7

Have you tried to fix the conflicting rules? Some are the exact same OldName :slight_smile:

But other then that I think that for redirect Blueprint stuff you should do something like this (I have never tried BP to code only code to code):

Blockquote
+StructRedirects=(OldName=“{BlueprintStruct}”,NewName=“/Script/{Module}.{NativeStruct}”,OverrideClassName=“/Script/CoreUObject.Struct”)

Blockquote
OverrideClassName
“(Optional) Specifies a change to the underlying class of the UCLASS. This is generally used to change a Blueprint class to a native class.”

8

I tested the rules one by one, I just posted them all at once to show what I have tried already. At one point I tried them all at once just to see if the log would show anything and that’s when the “conflict” message appeared, so at least I know it is doing something.
Using the rules one by one results in absolute nothing, not even a log message.

I’m going to test this, I thought documentation wrote this for UCLASS only. Will reply after testing.

9

This format has been tested and does not work:

+StructRedirects=(OldName=“S_OLD_Weather_Planetary”,NewName=“/Script/GameCore.S_WeatherPlanetary”,OverrideClassName=“/Script/CoreUObject.Struct”)

10

Did some test and I can’t get it to work either for BPStruct to CodeStruct.
Nothing even happen if I try to redirect BPStruct to BPStruct…

Redirect CodeStruct to CodeStruct work fine.

So not sure if there are some more magic you need to do or if it’s just broken.

1 Like
11

bump

12

bump

13

Related for c++ to c++ and probably BP to c++, to make the matter more complex the redirector may fail silently after adding it properly.

Widgets destroyed after moving c++ class from project to plugin

14

Hi! Have you been successful?
I’ve been trying all day to replace the BP structure with C++. I was able to do it with ENUM, but the structure is unresponsive.

15

Not at all. I gave up fighting. This is another dead / half working feature. Best to start from scratch in c++ and develop modules one by one, then at the absolute last moment implement blueprints if you absolutely have to.

1 Like