UQuickGameModeOverrideSettings (C++)

The settings object that holds the override state. A plain UObject (not UDeveloperSettings), so it doesn't appear in Project Settings — its only UI is the toolbar widget.

• Header: Source/QuickGameModeOverride/Public/QuickGameModeOverrideSettings.h
• Module: QuickGameModeOverride (Runtime)

UCLASS(Config="QuickGameModeOverride", DefaultConfig)
class QUICKGAMEMODEOVERRIDE_API UQuickGameModeOverrideSettings : public UObject
{
    GENERATED_BODY()

public:
    void SaveDefault()
    {
        SaveConfig(CPF_Config, *GetDefaultConfigFilename());
    }

    UPROPERTY(EditDefaultsOnly, Config, Category="Quick Game Mode Override")
    TOptional<TSubclassOf<AGameModeBase>> OverrideGameModeClass;

    UPROPERTY(EditDefaultsOnly, Config, Category="Quick Game Mode Override")
    bool bOverrideGameMode = false;
};

Properties

bOverrideGameMode

bool, defaults to false. The master switch. The override only takes effect when this is true and OverrideGameModeClass is set.

OverrideGameModeClass

TOptional<TSubclassOf<AGameModeBase>>. The target class. Storing it as TOptional lets the absence of a value persist without writing OverrideGameModeClass=None to the config file.

The check used everywhere in the plugin is:

if (Settings->bOverrideGameMode && Settings->OverrideGameModeClass.IsSet())
{
    if (TSubclassOf<AGameModeBase> Override = Settings->OverrideGameModeClass.GetValue())
    {
        // ...
    }
}

The triple guard (bool, IsSet, truthy class) is intentional — the toolbar UI clears the optional when the user picks None, but a hand-edited config could still have the bool set without a class.

SaveDefault()

Inline helper that calls SaveConfig(CPF_Config, *GetDefaultConfigFilename()) to persist to Config/DefaultQuickGameModeOverride.ini. The toolbar calls this after every value change so edits survive editor restarts.

There's no async or delayed write — SaveConfig is synchronous and hits disk immediately.

Reading the settings

const UQuickGameModeOverrideSettings* Settings = GetDefault<UQuickGameModeOverrideSettings>();

GetDefault is sufficient — Config properties are loaded into the CDO at startup. There's no instance to construct.

Mutating the settings from C++

UQuickGameModeOverrideSettings* Settings = GetMutableDefault<UQuickGameModeOverrideSettings>();
Settings->bOverrideGameMode = true;
Settings->OverrideGameModeClass = TSubclassOf<AGameModeBase>(MyGameModeClass);
Settings->SaveDefault();

Use GetMutableDefault (not GetDefault) when you intend to write, and call SaveDefault() afterward — otherwise the change exists only in memory for the current editor session.

Not Blueprint-exposed

The class has no BlueprintType / BlueprintReadable markers and none of its properties are BlueprintReadWrite. There is no Blueprint API for this plugin's settings.