UE4在 JoinSession过程中传递参数

最新推荐文章于 2025-10-23 14:19:17 发布

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最新推荐文章于 2025-10-23 14:19:17 发布 · 936 阅读

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本文介绍在Unreal Engine 4中如何通过重写PlayerController的ClientTravelInternal_Implementation函数来添加自定义参数，并在GameMode的InitNewPlayer中获取这些参数，实现跨会话的数据传递。

默认的JoinSession 是没有传递参数功能的，不过我可以通过重写客户端的PlayerController的ClientTravelInternal_Implementation的函数添加参数，然后在服务器GameMode的InitNewPlayer中获得改参数

CustomPlayerController

void ClientTravelInternal_Implementation(const FString& URL, enum ETravelType TravelType, bool bSeamless = false, FGuid MapPackageGuid = FGuid());

void AServerSession_PlayerController::ClientTravelInternal_Implementation(const FString& URL, ETravelType TravelType, bool bSeamless, FGuid MapPackageGuid)
{

	//添加服务器参数

	FString FinalURL = URL + TEXT("?bIsServer=true") ;
	
	Super::ClientTravelInternal_Implementation(FinalURL, TravelType, bSeamless, MapPackageGuid);
}

CustomGameMode

virtual FString InitNewPlayer(APlayerController* NewPlayerController, const FUniqueNetIdRepl& UniqueId, const FString& Options, const FString& Portal /* = TEXT("") */) override;

FString AVTTSGameModeBase::InitNewPlayer(APlayerController* NewPlayerController, const FUniqueNetIdRepl& UniqueId, const FString& Options, const FString& Portal)
{
	//获得客户端传来的参数
	FString IsServer = UGameplayStatics::ParseOption(Options, TEXT("bIsServer"));
	Super::InitNewPlayer......
}