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UE-52763 tvOS/iOS: Allow save games to save to iCloud
UE-52346 TM-Gameplay: Load Level Volume Fails to Read TestSlot.sav file
UE-64066 TM-Gameplay Load Game does not work on TVOS
#jira UE-52763
#jira UE-52346
#jira UE-64066
#iOS
#4.22
#rb Jack.Porter
Adapted the Online iCloud plugin to work without enabling the Game Center plugin (using empty UniqueNetId as a parameter for FOnlineUserCloudInterfaceIOS methods and callbacks)
At plugin init, the data from the iCloud will overwrite the local storage.
Replaced saveRecord with CKModifyRecordsOperation to avoid errors on existing iCloud records - using savePolicy = CKRecordSaveAllKeys to overwrite the previously uploaded save file
Entitlements:
Fixed the problem with writing the iCloud lines in UE4Game.entitlements : The flag from DefaultEngine.ini was overwritten by IOSEngine.ini (same section & key). Same issue with the Game Center flag
Signing:
It looks like there is a problem (since Xcode 6/iOS8, when Apple has changed the format for the iCloud entitlements, in order to support CloudKit) with the Entitlements section from the provisioning file (downloaded from Apple Developper) <key>com.apple.developer.icloud-services</key> contains "*" instead of the CloudKit and CloudDocuments entries. Fixed it, otherwise the app won't appear in the iPhone's Settings->iCloud apps menu
[CL 4760235 by Sorin Gradinaru in Dev-Mobile branch]
80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
// Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
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#include "IOSSaveGameSystem.h"
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#include "GameDelegates.h"
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DEFINE_LOG_CATEGORY_STATIC(LogIOSSaveGame, Log, All);
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//
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// Implementation members
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//
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FIOSSaveGameSystem::FIOSSaveGameSystem()
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{
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Initialize();
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}
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FIOSSaveGameSystem::~FIOSSaveGameSystem()
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{
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Shutdown();
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}
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void FIOSSaveGameSystem::Initialize()
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{
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}
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void FIOSSaveGameSystem::Shutdown()
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{
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}
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ISaveGameSystem::ESaveExistsResult FIOSSaveGameSystem::DoesSaveGameExistWithResult(const TCHAR* Name, const int32 UserIndex)
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{
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if (IFileManager::Get().FileSize(*GetSaveGamePath(Name)) >= 0)
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{
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return ESaveExistsResult::OK;
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}
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return ESaveExistsResult::DoesNotExist;
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}
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bool FIOSSaveGameSystem::SaveGameNoCloud(const TCHAR* Name, const TArray<uint8>& Data)
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{
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return FFileHelper::SaveArrayToFile(Data, *GetSaveGamePath(Name));
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}
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bool FIOSSaveGameSystem::SaveGame(bool bAttemptToUseUI, const TCHAR* Name, const int32 UserIndex, const TArray<uint8>& Data)
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{
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// send to the iCloud, if enabled
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OnWriteUserCloudFileBeginDelegate.ExecuteIfBound(FString(Name), Data);
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return FFileHelper::SaveArrayToFile(Data, *GetSaveGamePath(Name));
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}
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bool FIOSSaveGameSystem::LoadGame(bool bAttemptToUseUI, const TCHAR* Name, const int32 UserIndex, TArray<uint8>& Data)
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{
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// try to read it from the iCloud, if enabled
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OnReadUserCloudFileBeginDelegate.ExecuteIfBound(FString(Name), Data);
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if (Data.Num() > 0)
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{
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// we've received data from the iCloud, the save file was overwritten
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return true;
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}
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// no iCloud data, read from the local storage
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return FFileHelper::LoadFileToArray(Data, *GetSaveGamePath(Name));
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}
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bool FIOSSaveGameSystem::DeleteGame(bool bAttemptToUseUI, const TCHAR* Name, const int32 UserIndex)
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{
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// delete the file from the iCloud
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OnDeleteUserCloudFileBeginDelegate.ExecuteIfBound(FString(Name));
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// delete the file from the local storage
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return IFileManager::Get().Delete(*GetSaveGamePath(Name), true, false, !bAttemptToUseUI);
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}
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FString FIOSSaveGameSystem::GetSaveGamePath(const TCHAR* Name)
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{
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return FString::Printf(TEXT("%s""SaveGames/%s.sav"), *FPaths::ProjectSavedDir(), Name);
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}
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