ゲームサーバーの PlayFab ゲームサーバー SDK (GSDK) との統合

[アーティクル]
07/11/2023

概要

PlayFab ゲームサーバー SDK (GSDK) は C++ 版、C# 版、および Java 版が提供されています。 GSDK はユーザーのゲームサーバーを、VM にインストールされている PlayFab エージェントに接続します。このエージェントによって、PlayFab マルチプレイヤープラットフォームとサーバーとの主な対話が容易になります。

基本的な統合

ユーザーのゲームサーバーが PlayFab マルチプレイヤープラットフォームと通信できるように、GSDK と統合する必要があります。少なくとも Start と ReadyForPlayers メソッドをゲームサーバーに実装する必要があります。

int main()
{
    // Call this while your game is initializing; it will start sending a heartbeat to our agent and put the game server in an Initializing state
    Microsoft::Azure::Gaming::GSDK::start();

    /* Add any other initialization code your game server needs before players can connect */

    // Call this when your game is done initializing and players can connect
    // Note: This is a blocking call, and will return when this game server is either allocated or terminated
    if (Microsoft::Azure::Gaming::GSDK::readyForPlayers())
    {
        // readyForPlayers returns true when an allocation call has been done, a player is about to connect!
    }
    else
    {
        // readyForPlayers returns false when the server is being terminated
    }

}

static void Main(string[] args)
{
    // Call this while your game is initializing; it will start sending a heartbeat to our agent and put the game server in an Initializing state
    GameserverSDK.Start();

    /* Add any other initializion code your game server needs before players can connect */

    // Call this when your game is done initializing and players can connect
    // Note: This is a blocking call, and will return when this game server is either allocated or terminated
    if (GameserverSDK.ReadyForPlayers())
    {
        // readyForPlayers returns true when an allocation call has been done, a player is about to connect!
    }
    else
    {
        // readyForPlayers returns false when the server is being terminated
    }

}

public static void main(String[] args)
{
    // Call this while your game is initializing; it will start sending a heartbeat to our agent and put the game server in an Initializing state
    GameserverSDK.start();

    /* Add any other initializion code your game server needs before players can connect */

    // Call this when your game is done initializing and players can connect
    // Note: This is a blocking call, and will return when this game server is either allocated or terminated
    if (GameserverSDK.readyForPlayers())
    {
        // readyForPlayers returns true when an allocation call has been done, a player is about to connect!
    }
    else
    {
        // readyForPlayers returns false when the server is being terminated
    }

}

GSDK によるログ

ゲームサーバーが終了すると、PlayFab VM エージェントはすべてのログファイルを zip 形式で圧縮して、ユーザーが使用できるようにします。

ゲームからのログファイルを追加するには 2 つの方法があります。

GSDK の Log メソッド使用すると、ユーザー独自のログ行が GSDK のログファイルに追加されます。
PlayFab VM エージェントが zip 形式で圧縮してアップロードする適切なログディレクトリに、独自のログファイルを書き込みます。

// This will add your log line to the GSDK log file, alongside other information logged by the GSDK
Microsoft::Azure::Gaming::GSDK::logMessage("Here is a sample log");

// Alternatively, you can log your own files to the log directory
std::string logFolder = Microsoft::Azure::Gaming::GSDK::getLogsDirectory();

// This will add your log line to the GSDK log file, alongside other information logged by the GSDK
GameserverSDK.LogMessage("Here is a sample log");

// Alternatively, you can log your own files to the log directory
string logFolder = GameserverSDK.GetLogsDirectory();

// This will add your log line to the GSDK log file, alongside other information logged by the GSDK
GameserverSDK.log("Here is a sample log");

// Alternatively, you can log your own files to the log directory
String logFolder = GameserverSDK.getLogsDirectory();

ゲームサーバーの正常なシャットダウン

ゲームサーバーの終了には以下の 3 つのシナリオがあります。

ゲームサーバーアプリケーションが終了する。
利用可能なゲームサーバーの数が、現在のプレイヤー負荷に必要なサーバーより多いため、PlayFab がゲームサーバーを終了する。

注意

PlayFab は、現在アクティブではないゲームサーバーのみを終了します。

Azure が、ゲームサーバーをホストしている仮想マシン上で必要なメンテナンスを行う。

上記の (1) の場合: いつを終了するかをユーザーが制御し、アプリケーションを終了する前に、必要なクリーンアップを行うことができます。

上記の (2) と (3) の場合: コールバックメソッドを指定することによって、いつ終了するかをユーザーが把握する方法が GSDK に用意されています。

// This method will be called in case #2, when PlayFab terminates the game server
void onShutdown()
{
    printf("GSDK is shutting me down!!!\n");
    /* Perform any necessary cleanup and end the program */
    std::exit(0);
}

// This method will be called in case #3, when Azure will perform maintenance on the virtual machine
void onMaintenanceScheduled(tm t)
{
#ifdef WINDOWS
    time_t local = _mkgmtime(&t);
    double delta = difftime(local, time(NULL));
    struct tm buf;
    char str[26];
    gmtime_s(&buf, &local);
    asctime_s(str, sizeof str, &buf);
    printf("UTC:   %s", str);
    localtime_s(&buf, &local);
    asctime_s(str, sizeof str, &buf);
    printf("local: %s", str);
    printf("delta: %f", delta);
#else // Linux
    time_t local = timegm(&t);
    double delta = difftime(local, time(NULL));
    printf("UTC:   %s\n", asctime(gmtime(&local)));
    printf("local: %s\n", asctime(localtime(&local)));
    printf("delta: %f\n", delta);
#endif

    /* Perform any necessary cleanup, notify your players, etc. */
}

int main()
{
        Microsoft::Azure::Gaming::GSDK::start();
        Microsoft::Azure::Gaming::GSDK::registerShutdownCallback(&onShutdown);
        Microsoft::Azure::Gaming::GSDK::registerMaintenanceCallback(&onMaintenanceScheduled);

        // Continue initializing your game
}

// This method will be called in case #2, when PlayFab terminates the game server
static void OnShutdown()
{
    GameserverSDK.LogMessage("Shutting down...");
    /* Perform any necessary cleanup and end the program */
}

// This method will be called in case #3, when Azure will perform maintenance on the virtual machine
static void OnMaintenanceScheduled(DateTimeOffset time)
{
    /* Perform any necessary cleanup, notify your players, etc. */
}

static void Main(string[] args)
{
    GameserverSDK.Start();
    GameserverSDK.RegisterShutdownCallback(OnShutdown);
    GameserverSDK.RegisterMaintenanceCallback(OnMaintenanceScheduled);

    // Continue initializing your game
}

// This method will be called in case #2, when PlayFab terminates the game server
private static void onShutdown()
{
    System.out.println("Shutting down...");
    /* Perform any necessary cleanup and end the program */
}

// This method will be called in case #3, when Azure will perform maintenance on the virtual machine
private static void onMaintenanceScheduled(ZonedDateTime time)
{
    /* Perform any necessary cleanup, notify your players, etc. */
}

static void Main(string[] args)
{
    GameserverSDK.start();
    GameserverSDK.registerShutdownCallback(Main::onShutdown);
    GameserverSDK.registerMaintenanceCallback(Main::onMaintenanceScheduled);

    // Continue initializing your game
}

ゲームサーバーに関する PlayFab 情報の提供

現時点では、GSDK を使用した PlayFab との通信によって、ユーザーは以下の 2 つの情報を取得できます。

ゲームサーバーの現在の正常性状態。
ゲームサーバーに現在接続しているプレイヤーのリスト。

これら 2 つの情報は、次回のハートビートで PlayFab に送信され、現時点では報告するために使用できます。

static std::vector<Microsoft::Azure::Gaming::ConnectedPlayer> players;

void playerConnected()
{
    // When a new player connects, you can let PlayFab know by adding it to the vector of players and calling updateConnectedPlayers
    players.push_back(Microsoft::Azure::Gaming::ConnectedPlayer("player_tag"));
    Microsoft::Azure::Gaming::GSDK::updateConnectedPlayers(players);
}

// This method will be called on every heartbeat to check if your game is healthy, as such, it should return very quickly
bool isHealthy()
{
    // Return whether your game server should be considered healthy
    return true;
}

int main()
{
        Microsoft::Azure::Gaming::GSDK::start();
        Microsoft::Azure::Gaming::GSDK::registerHealthCallback(&isHealthy);

        // Continue initializing your game
}

static private List<ConnectedPlayer> players = new List<ConnectedPlayer>();

static void OnPlayerConnected()
{
    // When a new player connects, you can let PlayFab know by adding it to the vector of players and calling updateConnectedPlayers
    players.Add(new ConnectedPlayer("player_tag"));
    GameserverSDK.UpdateConnectedPlayers(players);
}

// This method will be called on every heartbeat to check if your game is healthy, as such, it should return very quickly
static bool IsHealthy()
{
    // Return whether your game server should be considered healthy
    return true;
}

static void Main(string[] args)
{
    GameserverSDK.Start();
    GameserverSDK.RegisterHealthCallback(IsHealthy);

    // Continue initializing your game
}

private static ArrayList<ConnectedPlayer> players = new ArrayList<ConnectedPlayer>();

private static void onPlayerConnected()
{
    // When a new player connects, you can let PlayFab know by adding it to the vector of players and calling updateConnectedPlayers
    players.add(new ConnectedPlayer("player_tag"));
    GameserverSDK.updateConnectedPlayers(players);
}

// This method will be called on every heartbeat to check if your game is healthy, as such, it should return very quickly
private static GameHostHealth getGameHealth()
{
    // Return whether your game server should be considered healthy
    return GameHostHealth.Healthy;
}

static void Main(string[] args)
{
    GameserverSDK.start();
    GameserverSDK.registerHealthCallback(Main::getGameHealth);

    // Continue initializing your game
}

ゲームサーバー内の構成設定の取得

ユーザーは GSDK を使用して、ゲームサーバー関連するいくつかの PlayFab 設定を取得できます。

注意

それらの設定のうちの 2 つは、マルチプレイヤーサーバーを要求するための呼び出しの一部として、ユーザーのクライアントによって実際に PlayFab に渡されます。したがって、それらの設定が割り当てられるまでは、ゲームサーバーでは利用できません。

// Get all the configuration values
std::unordered_map<std::string, std::string> config = Microsoft::Azure::Gaming::GSDK::getConfigSettings();

// Retrieve a particular configuration value
auto it = config.find(Microsoft::Azure::Gaming::GSDK::SESSION_COOKIE_KEY);

if (it != config.end())
{
    std::string sessionCookie = config[Microsoft::Azure::Gaming::GSDK::SESSION_COOKIE_KEY];
}

// Here some other useful configuration keys (the full list is in gsdk.h)
static constexpr const char* SERVER_ID_KEY; // ID given to your game server upon creation
static constexpr const char* LOG_FOLDER_KEY; // Path to the folder that should contain all log files
static constexpr const char* CERTIFICATE_FOLDER_KEY; // Path to the folder that contains any game certificate files
static constexpr const char* TITLE_ID_KEY; // PlayFab Title ID for this game server
static constexpr const char* BUILD_ID_KEY; // PlayFab Build ID for this game server
static constexpr const char* REGION_KEY; // Azure Region this server is running in

// These two keys are only available after allocation (once readyForPlayers returns true)
static constexpr const char* SESSION_COOKIE_KEY; // The Session Cookie you passed into the allocation call when you requested a server
static constexpr const char* SESSION_ID_KEY; // The Session ID you specified in the allocation call when you requested a server

// Get all the configuration values
IDictionary<string, string> config = GameserverSDK.getConfigSettings();

// Retrieve a particular configuration value
if (config.TryGetValue(GameserverSDK.SessionCookieKey, out string sessionCookie))
{
    // sessionCookie contains the value
}

// Here are some other useful configuration keys (the full list is in the GameserverSDK class)
public static string ServerIdKey; // ID given to your game server upon creation
public static string LogFolderKey; // Path to the folder that should contain all log files
public static string CertificateFolderKey; // Path to the folder that contains any game certificate files
public static string TitleIdKey; // PlayFab Title ID for this game server
public static string BuildIdKey; // PlayFab Build ID for this game server
public static string RegionKey; // Azure Region this server is running in

// These two keys are only available after allocation (once readyForPlayers returns true)
public static string SessionCookieKey; // The Session Cookie you passed into the allocation call when you requested a server
public static string SessionIdKey; // The Session ID you specified in the allocation call when you requested a server

// Get all the configuration values
Map<String, String> config = GameserverSDK.getConfigSettings();

// Retrieve a particular configuration value
if (config.containsKey(GameserverSDK.SESSION_COOKIE_KEY))
{
    String sessionCookie = config.get(GameserverSDK.SESSION_COOKIE_KEY);
}

// Here are some other useful configuration keys (the full list is in the GameserverSDK class)
public static final String SERVER_ID_KEY; // ID given to your game server upon creation
public static final String LOG_FOLDER_KEY; // Path to the folder that should contain all log files
public static final String CERTIFICATE_FOLDER_KEY; // Path to the folder that contains any game certificate files
public static final String TITLE_ID_KEY; // PlayFab Title ID for this game server
public static final String BUILD_ID_KEY; // PlayFab Build ID for this game server
public static final String REGION_KEY; // Azure Region this server is running in

// These two keys are only available after allocation (once readyForPlayers returns true)
public static final String SESSION_COOKIE_KEY; // The Session Cookie you passed into the allocation call when you requested a server
public static final String SESSION_ID_KEY; // The Session ID you specified in the allocation call when you requested a server

ゲーム サーバーの PlayFab ゲーム サーバー SDK (GSDK) との統合

概要

基本的な統合

GSDK によるログ

ゲーム サーバーの正常なシャットダウン

ゲーム サーバーに関する PlayFab 情報の提供

ゲーム サーバー内の構成設定の取得

その他のリソース

ゲームサーバーの PlayFab ゲームサーバー SDK (GSDK) との統合

ゲームサーバーの正常なシャットダウン

ゲームサーバーに関する PlayFab 情報の提供

ゲームサーバー内の構成設定の取得