Google Play遊戲C++ API - 無法以編程方式訪問朋友

Question

Google Play遊戲C++似乎並沒有爲我返回正確的朋友數據。

這裏的基本思路是我們在遊戲中有一個頁面，顯示朋友分數列表。此外，當你玩遊戲時，它會在屏幕上顯示一個指標，當你接近和當你通過你的朋友的最好成績。

該遊戲是用Cocos2d-x編寫的，因此我們使用Google Play遊戲C++庫。 GPG認證成功，其他功能（如解鎖成就和實際提交分數）工作正常。順便說一句，如果Google的任何人都在閱讀，那麼網站上就有版本說明2.2版，但下載頁面只有2.1版，所以這就是我們正在使用的版本。

無論如何，我們有兩個設備與不同的Google Play帳戶是朋友。我們可以選擇打開默認的原生遊戲服務排行榜界面，如果我轉到社交排行榜，那麼這兩個設備都會從該頁面看到其他玩家的高分 - 所以看起來我們已經成功創建了這兩個帳戶的朋友。

不幸的是，我無法使用C++ API以編程方式獲取此朋友數據。

這裏是相關的代碼。

void GameCenterSession::fetchFriends() 
{ 
    __android_log_print(ANDROID_LOG_INFO, "MyGame!", "Fetching friends!"); 

    //GET INVITABLE FRIENDS 
    game_services_->Players().FetchInvitable(gpg::DataSource::CACHE_OR_NETWORK, [] (gpg::PlayerManager::FetchListResponse response) { 
     __android_log_print(ANDROID_LOG_INFO, "MyGame!", "Got invitable friends response: %d", response.status); 
     __android_log_print(ANDROID_LOG_INFO, "MyGame!", "Got invitable players info! Num players: %d", response.data.size()); 
     if (gpg::IsSuccess(response.status)) { 
      //PROCESS PLAYERS 
      GameCenterSession::getInstance()->onPlayersInfoReceived(kRequestFriendsInfo, response.data); 
     } 
    }); 

    //GET CONNECTED FRIENDS 
    game_services_->Players().FetchConnected(gpg::DataSource::CACHE_OR_NETWORK, [] (gpg::PlayerManager::FetchListResponse response) { 
     __android_log_print(ANDROID_LOG_INFO, "MyGame!", "Got connected friends response: %d", response.status); 
     __android_log_print(ANDROID_LOG_INFO, "MyGame!", "Got connected players info! Num players: %d", response.data.size()); 
    }); 
} 

void GameCenterSession::onPlayersInfoReceived(const int requestId, std::vector<gpg::Player> playersInfo) { 

    __android_log_print(ANDROID_LOG_INFO, "MyGame!", "onPlayersInfoReceived num players: %d", playersInfo.size()); 
    const gpg::ScorePage::ScorePageToken distanceToken = game_services_->Leaderboards().ScorePageToken(
     kLeaderboardBestDistance, 
     gpg::LeaderboardStart::TOP_SCORES, 
     gpg::LeaderboardTimeSpan::ALL_TIME, 
     gpg::LeaderboardCollection::SOCIAL 
    ); 

    //FETCH ALL TIME SOCIAL SCORES FOR DISTANCE 
    game_services_->Leaderboards().FetchScorePage(gpg::DataSource::CACHE_OR_NETWORK, distanceToken, 1000, [] (gpg::LeaderboardManager::FetchScorePageResponse response) { 

     if (gpg::IsSuccess(response.status) && response.data.Valid()) { 
      __android_log_print(ANDROID_LOG_INFO, "MyGame!", "Got social leaderboard! Num players: %d", response.data.Entries().size()); 
      gpg::ScorePage::Entry myEntry = gpg::ScorePage::Entry(); 

      //search through and find my score! 
      for (auto score : response.data.Entries()) { 
       __android_log_print(ANDROID_LOG_INFO, "MyGame!", "%s got distance %d", score.PlayerId().c_str(), score.Score().Value()); 


       if (score.PlayerId().compare(GameCenterSession::getInstance()->myPlayer.Id()) == 0) { 
        __android_log_print(ANDROID_LOG_INFO, "MyGame!", "Distance - Yup that's me"); 
        myEntry = score; 
       } else { 
        __android_log_print(ANDROID_LOG_INFO, "MyGame!", "Distance - It's another player!"); 
       } 
      } 

      GameCenterSession::getInstance()->onScoresReceived(kRequestFriendsDistancesInfo, myEntry, response.data.Entries()); 
     } 
    }); 


    const gpg::ScorePage::ScorePageToken scoreToken = game_services_->Leaderboards().ScorePageToken(
     kLeaderboardBestScore, 
     gpg::LeaderboardStart::TOP_SCORES, 
     gpg::LeaderboardTimeSpan::ALL_TIME, 
     gpg::LeaderboardCollection::SOCIAL 
    ); 

    game_services_->Leaderboards().FetchScorePage(gpg::DataSource::CACHE_OR_NETWORK, scoreToken, 1000, [] (gpg::LeaderboardManager::FetchScorePageResponse response) { 
     if (gpg::IsSuccess(response.status) && response.data.Valid()) { 

      gpg::ScorePage::Entry myEntry = gpg::ScorePage::Entry(); 

      //search through and find my score! 
      for (auto score : response.data.Entries()) { 
       __android_log_print(ANDROID_LOG_INFO, "MyGame!", "%s got score %d", score.PlayerId().c_str(), score.Score().Value()); 


       if (score.PlayerId().compare(GameCenterSession::getInstance()->myPlayer.Id()) == 0) { 
        __android_log_print(ANDROID_LOG_INFO, "MyGame!", "Score - Yup that's me"); 
        myEntry = score; 
       } else { 
        __android_log_print(ANDROID_LOG_INFO, "MyGame!", "Score - It's another player!"); 
       } 
      } 

      GameCenterSession::getInstance()->onScoresReceived(kRequestFriendsScoresInfo, myEntry, response.data.Entries()); 
     } 
    }); 

    if (requestId == kRequestFriendsInfo) 
    { 
     friends = playersInfo; 
    } 
} 

查看代碼，您會看到我首先獲取好友列表並檢查列表中有多少玩家。我嘗試訪問兩個可邀請的朋友（通過文檔判斷這是我想要的），並與相關朋友（就像測試一樣）。我繼續抓住兩種不同的社交排行榜 - 距離和得分，並且我檢查了結果中有多少球員。這是我的日誌輸出。

//設備1

I/MyGame!(1510): Google Play Games authenticated successfully! 
I/MyGame!(1510): Fetching friends! 
I/MyGame!(1510): Got invitable friends response: 1 
I/MyGame!(1510): Got invitable players info! Num players: 0 
I/MyGame!(1510): onPlayersInfoReceived num players: 0 
I/MyGame!(1510): Got connected friends response: 1 
I/MyGame!(1510): Got connected players info! Num players: 0 
I/MyGame!(1510): Got social leaderboard! Num players: 1 
I/MyGame!(1510): g1703186947466536XXXX got distance 310 
I/MyGame!(1510): Distance - Yup that's me 
I/MyGame!(1510): g1703186947466536XXXX got score 2510 
I/MyGame!(1510): Score - Yup that's me 

//設備2

01-23 17:11:27.227 17187 17234 I MyGame!: Google Play Games authenticated successfully! 
01-23 17:11:27.250 17187 17234 I MyGame!: Fetching friends! 
01-23 17:11:27.451 17187 17234 I MyGame!: Got invitable friends response: 1 
01-23 17:11:27.451 17187 17234 I MyGame!: Got invitable players info! Num players: 0 
01-23 17:11:27.451 17187 17234 I MyGame!: onPlayersInfoReceived num players: 0 
01-23 17:11:27.581 17187 17234 I MyGame!: Got connected friends response: 1 
01-23 17:11:27.581 17187 17234 I MyGame!: Got connected players info! Num players: 0 
01-23 17:11:27.973 17187 17234 I MyGame!: Got social leaderboard! Num players: 1 
01-23 17:11:27.973 17187 17234 I MyGame!: g0152008166550356XXXX got distance 712 
01-23 17:11:27.973 17187 17234 I MyGame!: Distance - Yup that's me 
01-23 17:11:28.444 17187 17234 I MyGame!: g0152008166550356XXXX got score 2142 
01-23 17:11:28.444 17187 17234 I MyGame!: Score - Yup that's me 

正如你看到的，我的回調都返回成功的結果代碼。遺憾的是，這兩款設備都沒有返回任何朋友，社交排行榜回調只包含設備上的播放器，而不包括其朋友的分數。

我儘可能地遵循了文檔，並且我已經查看了代碼而不能找到任何問題，但如果它只是一個語義問題，我很樂意聽到我的錯誤。我在這裏做錯了什麼，或者C++ API本身有問題嗎？

在此先感謝。

Answer 1

API的行爲與預期相同。來自：https://android-developers.googleblog.com/2016/12/games-authentication-adopting-google.html

Google+不再整合 Announced last year，在此過渡期間，遊戲與Google+分離。結果，用於通過圈子獲得連接玩家的公共API停止工作，但多人邀請和社交排行榜的標準UI繼續工作。自2017年2月起，標準用戶界面將不會顯示社交圖譜結果，因爲Google+數據無法訪問。這將影響Android上的多人遊戲，社交排行榜和禮品API。效果將是這些API將成功返回，但是會有一個空的玩家列表。