Enums

Enum helpers mostly exist on the UEnum class for the enum.

String representations §

StaticEnum<EMyEnum>()->GetDisplayNameTextByValue(static_cast<int64>(SomeEnumValue)));
 

Get UEnum for an enum type §

UEnum* Thing = StaticEnum<ESomeEnumType>();

Get random enum value §

template <class T>
static T RandomEnum()
{
	UEnum* Enum = StaticEnum<T>();
	int32 Num = FMath::RandRange(0, static_cast<int32>(Enum->GetMaxEnumValue()) - 1);
	return static_cast<T>(Num);
}
 
//use:
EMyEnum Val = RandomEnum<EMyEnum>();

Get all enum values §

template <class T>
static TArray<T> GetEnumValues()
{
	const UEnum* Enum = StaticEnum<T>();
	int32 Max = Enum->GetMaxEnumValue();
	TArray<T> EnumArray;
	EnumArray.Reserve(Max);
	for(int32 i = 0; i < Max; i++)
	{
		EnumArray.Emplace(static_cast<T>(i));
	}
 
	return EnumArray;
}
 
//use:
TArray<EMyEnum> Values = GetEnumValues<EMyEnum>();

Errors §

• unsupported_enum_type enum size is larger than a byte