PlayFab Game Saves の Steam Deck 実装ガイド

YourGame/
├── YourGame.exe
├── libHttpClient.dll     // Required for HTTP operations
├── PlayFabCore.dll       // Required for authentication
├── PlayFabServices.dll   // Optional: For additional PlayFab services
├── PlayFabGameSave.dll   // Required for Game Saves
├── xgameruntime.dll      // Required for Xbox Live services
├── Steam_api64.dll
└── Other game files...

// Initialize Steam API
bool steamAvailable = SteamAPI_Init();

bool DetectSteamDeck() {
    if (!SteamAPI_Init()) {
        return false;
    }
    
    return SteamUtils()->IsSteamRunningOnSteamDeck();
}

// Required Game Saves UI callbacks for Steam Deck (both approaches)
PFGameSaveUICallbacks callbacks{};
callbacks.progressCallback = OnPFGameSaveFilesUiProgress;                    // Sync progress
callbacks.syncFailedCallback = OnPFGameSaveFilesUiSyncFailed;               // Sync errors
callbacks.activeDeviceContentionCallback = OnPFGameSaveFilesUiActiveDeviceContention;  // Device conflicts
callbacks.conflictCallback = OnPFGameSaveFilesUiConflict;                   // Save conflicts
callbacks.outOfStorageCallback = OnPFGameSaveFilesUiOutOfStorage;           // Storage quota

HRESULT hr = PFGameSaveFilesSetUiCallbacks(&callbacks);
if (FAILED(hr)) {
    // Handle callback setup failure
}

// Optional: Additional active device changed callback
hr = PFGameSaveFilesSetActiveDeviceChangedCallback(&OnActiveDeviceChanged, nullptr);

// Set sandbox before Xbox Live services initialization
// Only required when testing with non-retail sandboxes
if (isSteamDeck) {
    HRESULT hr = SteamIntegration::SetSandboxForSteamDeck("XDKS.1");
    if (FAILED(hr)) {
        // Handle sandbox setup failure - requires admin privileges
        return hr;
    }
}

// Handle remote authentication flow (QR code/URL)
XUserPlatformRemoteConnectEventHandlers remoteConnect{};
remoteConnect.context = nullptr;
remoteConnect.show = &OnRemoteConnectShow;     // Display QR code/URL dialog
remoteConnect.close = &OnRemoteConnectClose;   // Close authentication dialog
HRESULT hr = XUserPlatformRemoteConnectSetEventHandlers(nullptr, &remoteConnect);
if (FAILED(hr)) {
    // Handle event handler setup failure
}

// Handle SPOP sign-in prompt. See sample: ShowSpopPromptDialogForXUserOnSteamDeck
HRESULT hr = XUserPlatformSpopPromptSetEventHandlers(nullptr, &OnSpopPrompt, nullptr);
if (FAILED(hr)) {
    // Handle SPOP setup failure
}

// 1. Check Steam availability and platform
bool steamAvailable = SteamIntegration::CheckSteamAvailability();
bool isSteamDeck = SteamIntegration::CheckIfSteamDeck();

// 2. Set Xbox Live sandbox (Steam Deck only, required for non-retail sandbox testing)
if (isSteamDeck) {
    HRESULT hr = SteamIntegration::SetSandboxForSteamDeck("XDKS.1");
    if (FAILED(hr)) {
        // Handle sandbox setup failure
        return hr;
    }
}

// 3. Initialize Xbox runtime
hr = XGameRuntimeInitialize();
if (FAILED(hr)) {
    return hr;
}

// 4. Initialize PlayFab Core and Services
hr = PFInitialize(nullptr);
if (FAILED(hr)) {
    return hr;
}
hr = PFServicesInitialize(nullptr); // Optional

// 5. Initialize XUser for Steam Deck
if (isSteamDeck) {
    hr = SteamIntegration::InitializeXUserForSteamDeck();
    if (FAILED(hr)) {
        return hr;
    }
}

// 6. Initialize Game Saves with appropriate callbacks
bool setUiCallbacks = isSteamDeck;
hr = InitializeGameSaves(setUiCallbacks);
if (FAILED(hr)) {
    return hr;
}

void SignOutFromSteamDeck() {
    // Enumerate and delete Windows credentials with target names starting with "Xbl"
    DWORD count = 0;
    PCREDENTIALW* credentials = nullptr;
    
    if (CredEnumerateW(L"Xbl*", 0, &count, &credentials)) {
        for (DWORD i = 0; i < count; i++) {
            CredDeleteW(credentials[i]->TargetName, credentials[i]->Type, 0);
        }
        CredFree(credentials);
    }
    
    // Close Xbox user handles
    if (xboxUser) {
        XUserCloseHandle(xboxUser);
        xboxUser = nullptr;
    }
    
    // Close PlayFab user handles
    if (pfUser) {
        PFLocalUserCloseHandle(pfUser);
        pfUser = nullptr;
    }
    
    // Reset authentication state for clean re-authentication
    authenticationState = AuthState::NotAuthenticated;
}

// Custom identity authentication
if (isSteamDeck) {
    // Development/Testing: Use Steam user identity temporarily
    // Production: Implement your own cross-platform player identity system
    // Required for production since Steam Cloud handles Steam-only sync
    
    // Option 1: OpenID Connect Integration (Recommended)
    // If your identity system supports OpenID Connect, use LoginWithOpenIdConnect:
    // PFAuthenticationLoginWithOpenIdConnectRequest request = {};
    // request.connectionId = "YourOpenIdConnectConnectionId";
    // request.idToken = "YourOpenIdConnectToken";
    // PFAuthenticationLoginWithOpenIdConnectAsync(serviceConfigHandle, &request, ...);
    
    // Option 2: Custom Integration
    // Initialize your custom authentication system
    // Connect to your user accounts/login system
    // Integrate with PlayFab Game Saves using your player identity
    
    // Initialize Game Saves with your custom identity system
    // (Implementation details depend on your specific identity integration)
}

// 1. Check Steam availability and platform
bool steamAvailable = SteamIntegration::CheckSteamAvailability();
bool isSteamDeck = SteamIntegration::CheckIfSteamDeck();

// 2. Initialize Xbox runtime (still required for Game Saves infrastructure)
HRESULT hr = XGameRuntimeInitialize();
if (FAILED(hr)) {
    return hr;
}

// 3. Initialize PlayFab Core and Services
hr = PFInitialize(nullptr);
if (FAILED(hr)) {
    return hr;
}
hr = PFServicesInitialize(nullptr); // Optional

// 4. Initialize your custom player identity system
hr = InitializeCustomPlayerIdentity();
if (FAILED(hr)) {
    return hr;
}

// 5. Initialize Game Saves with custom identity system
// Option A: OpenID Connect (if your identity system supports it)
// hr = PFAuthenticationLoginWithOpenIdConnectAsync(serviceConfigHandle, &openIdRequest, ...);
// Option B: Custom authentication integration
hr = InitializeGameSavesWithCustomIdentity();
if (FAILED(hr)) {
    return hr;
}

void SignOutFromSteamDeck() {
    // Sign-out for custom identity implementation
    // No Xbox credential cleanup needed
    
    // Clean up your custom identity system
    SignOutFromCustomIdentitySystem();
    
    // Close PlayFab user handles
    if (pfUser) {
        PFLocalUserCloseHandle(pfUser);
        pfUser = nullptr;
    }
    
    // Clear local game state as needed
    ClearLocalGameState();
}