How do you deal with renaming an enum value that is used in a lot of assets?

Development Programming & Scripting Blueprint
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1

For example, say I have some enum like the following:

UENUM(BlueprintType)
enum class EMyEnumType : uint8
{
	Value1,
	Value2,
	Value3,
};

And then I have some property somewhere that references it:

UPROPERTY(EditDefaultsOnly)
EMyEnumType EnumValue;

If I have a lot of blueprint assets that reference a specific value of the enum, say EMyEnumType::Value2, how do I deal with updating all references if EMyEnumType::Value2 gets renamed, lets say to EMyEnumType::Value666.

When testing this I can see in the editor that it shows “EMyEnumType MAX” and it outputs a warning to the log, but only when you open the blueprint editor for an asset that is using the enum:

LogEnum:Warning: In asset ‘blah’,
there is an enum property of type
‘EMyEnumType’ with an invalid value of
‘EMyEnumType::Value2’

This seems like it would be very hard to manually find every blueprint that is using this enum and update their values one-by-one since you could easily miss one and not know about it. Are there any tools for making this process less painful?

2

You can use enum redirectors in your project’s INI file. Search BaseEngine.ini for “EnumRedirects” to see how it’s done.

For example:

+EnumRedirects=(EnumName="EMyEnumType",OldEnumEntry="EMyEnumType::Value2",NewEnumEntry="EMyEnumType::Value666")
3

Awesome! That’s super clean. Thanks!