如何使用 GameCenter Firebase 身份验证在 Unity 中访问 Auth Token

Question

我想将 GameCenter Authentication with Firebase 添加到我的 Unity 游戏中。但是在文档中没有 GameCenter 部分（只有 Play Games 一个）。我已经实现了“统一部分”：

public static void GameCenterAuth()
    {
        GameCenterPlatform.ShowDefaultAchievementCompletionBanner(true);
        Social.localUser.Authenticate (GameCenterProcessAuth);
    }

    static void GameCenterProcessAuth(bool success)
    {
        if (success) 
        {
            Social.ReportProgress("Achievement01", 100, (result) => {
            Debug.Log(result ? "Reported achievement" : "Failed to report achievement");
        });

        }
        else
        {
            Debug.Log ("Failed to authenticate");
        }
    }

但它错过了 Firebase 的 link。为此，我需要获取 GameCenter 的访问令牌，但好像文档不存在，我不知道如何实现。

Answer 1

https://firebase.google.com/docs/auth/ios/game-center 这可能会回答您的问题。当您从 unity

导出项目时，您可能必须在 XCode 中实现此功能

Answer 2

希望 Unity 文档中没有太多漏洞，但是当您找到一个时，您通常可以在 Unity Quickstarts 中找到示例代码（因为这些也用于验证对 Unity SDK 的更改） .

来自UIHandler.cs in the Auth quickstart：

    public Task SignInWithGameCenterAsync() {
      var credentialTask = Firebase.Auth.GameCenterAuthProvider.GetCredentialAsync();
      var continueTask = credentialTask.ContinueWithOnMainThread(task => {
        if(!task.IsCompleted)
          return null;

        if(task.Exception != null)
          Debug.Log("GC Credential Task - Exception: " + task.Exception.Message);

        var credential = task.Result;

        var loginTask = auth.SignInWithCredentialAsync(credential);
        return loginTask.ContinueWithOnMainThread(HandleSignInWithUser);
      });

      return continueTask;
    }

GameCenter 的奇怪之处在于您不直接管理凭据，而是您 request it from GameCenter (Here's PlayGames by comparison, which you have to cache the result of Authenticate manually)。

所以在你的代码中，我会进入 if (success) 块并添加：

GameCenterAuthProvider.GetCredentialAsync().ContinueWith(task => {
    // I used ContinueWith
    // be careful, I'm on a background thread here.
    // If this is a problem, use ContinueWithOnMainThread
    if (task.Exception != null) {
        FirebaseAuth.GetInstance.SignInWithCredentialAsync(task.Result).ContinueWithOnMainThread(task => {
            // I used ContinueWithOnMainThread
            // You're on the Unity main thread here, so you can add or change scene objects
            // If you're comfortable with threading, you can change this to ContinueWith
        });
    }
});

Answer 3

为了完成 Patrick 的回答，我找到了 machahamster GitHub 存储库，他们在其中使用 Game Center Auth with Firebase on Unity。如果它可以帮助某人： https://github.com/google/mechahamster/blob/b5ab9762cc95a2a36156d0cbd1dc08fb767c4080/Assets/Hamster/Scripts/Menus/GameCenterSignIn.cs#L45

如何使用 GameCenter Firebase 身份验证在 Unity 中访问 Auth Token

How to Access Auth Token in Unity with GameCenter Firebase Authentication

unity3d

game-center

firebase