我在设备上调试期间收到以下日志
错误：
*** [Play Games Plugin DLL] ERROR: Cloud load failed with status code 7
基本上OnStateLoaded() 回调函数总是返回布尔值success = false，我不知道原因。
插件调试日志中提到的只是“云加载失败，状态码为 7”。
【问题讨论】：
标签： unity3d google-play-services google-play-games
根据android doc，7 是一个通用的“开发者错误”，见https://developer.android.com/reference/com/google/android/gms/appstate/AppStateStatusCodes.html#STATUS_DEVELOPER_ERROR
我尝试了一个快速示例，一切正常。这是我的步骤：
保存所有内容并点击构建并运行。
以下是内容：
using UnityEngine;
using System.Collections;
using GooglePlayGames;
using GooglePlayGames.BasicApi;
using System;
public class SaveSample : MonoBehaviour {
System.Action<bool> mAuthCallback;
GameData slot0;
void Start () {
slot0 = new GameData(0,"waiting for login....");
mAuthCallback = (bool success) => {
if (success) {
Debug.Log("Authentication was successful!");
slot0.Data =" loading....";
slot0.LoadState();
}
else {
Debug.LogWarning("Authentication failed!");
}
};
// make Play Games the default social implementation
PlayGamesPlatform.Activate();
// enable debug logs
PlayGamesPlatform.DebugLogEnabled = true;
//Login explicitly for this sample, usually this would be silent
PlayGamesPlatform.Instance.Authenticate(mAuthCallback, false);
}
protected void OnGUI() {
Screen.fullScreen = true;
int buttonHeight = Screen.height / 20;
int buttonWidth = Screen.width / 5;
GUI.skin.label.fontSize = 60;
GUI.skin.button.fontSize = 60;
Rect statusRect = new Rect(10,20,Screen.width,100);
Rect dataRect = new Rect( 10, 150, Screen.width,100);
Rect b1Rect = new Rect(10, 400, buttonWidth, buttonHeight);
Rect b2Rect = new Rect(b1Rect.x + 20 + buttonWidth,
b1Rect.y, buttonWidth, buttonHeight);
if(!Social.localUser.authenticated) {
if(GUI.Button(b1Rect, "Signin")) {
Social.localUser.Authenticate(mAuthCallback);
}
}
else {
// logged in, so show the load button and the contents of the saved data.
if(GUI.Button(b1Rect, "Load")) {
slot0.LoadState();
}
GUI.Label(dataRect, slot0.Data);
}
if(GUI.Button(b2Rect, "Save")) {
// just save a string, incrementing the number on the end.
int idx = slot0.Data.IndexOf("_");
if (idx > 0) {
int val = Convert.ToInt32(slot0.Data.Substring(idx+1));
val++;
slot0.Data = "Save_" + val;
}
else {
slot0.Data = "Save_0";
}
slot0.SaveState();
}
GUI.Label(statusRect, slot0.State);
}
// Class to handle save/load callbacks.
public class GameData : OnStateLoadedListener {
int slot;
string data;
string state;
public GameData(int slot, string data) {
this.slot = slot;
this.data = data;
this.state = "Initialized, modified";
}
public void LoadState() {
this.state += ", loading";
((PlayGamesPlatform)Social.Active).LoadState(0, this);
}
public void SaveState() {
byte[] bytes = new byte[data.Length * sizeof(char)];
System.Buffer.BlockCopy(data.ToCharArray(), 0, bytes, 0, bytes.Length);
this.state += ", saving";
((PlayGamesPlatform) Social.Active).UpdateState(slot, bytes, this);
}
public void OnStateLoaded(bool success, int slot, byte[] data) {
if (success) {
Debug.Log ("Save game slot : " + slot + " loaded: " + data);
if (data != null) {
char[] chars = new char[data.Length / sizeof(char)];
System.Buffer.BlockCopy(data, 0, chars, 0, data.Length);
this.data = new string(chars);
this.state = "loaded";
} else {
Debug.Log ("Saved data is null");
this.data = "";
this.state = "loaded, but empty";
}
} else {
// handle failure
Debug.LogWarning ("Save game slot : " + slot + " failed!: ");
this.data = "";
this.state = "loading failed!";
}
}
public byte[] OnStateConflict(int slot, byte[] local, byte[] server) {
// resolve conflict and return a byte[] representing the
// resolved state.
Debug.LogWarning("Conflict in saved data!");
state = "conflicted";
// merge or resolve using app specific logic, here
byte[] resolved = local.Length > server.Length ? local : server;
char[] chars = new char[resolved.Length / sizeof(char)];
System.Buffer.BlockCopy(resolved, 0, chars, 0, resolved.Length);
this.data = new string(chars);
return resolved;
}
public void OnStateSaved(bool success, int slot) {
Debug.Log ("Save game slot : " + slot + " success: " + success);
state = "saved";
}
public string Data {
get {
return data;
}
set {
data = value;
state += ", modified";
}
}
public int Slot {
get {
return slot;
}
}
public string State {
get {
return state;
}
}
}
}
【讨论】：
错误代码 7 是因为 Cloud Save API 已被弃用，目前只有使用该 API 的现有游戏才能访问。 Unity 插件版本 0.9.11 已更新为使用 SavedGames API。
我尝试了一个快速示例，一切正常。这是我的步骤：
这是我的脚本： 使用 UnityEngine； 使用 System.Collections； 使用 GooglePlayGames； 使用 GooglePlayGames.BasicApi； 使用系统； 使用 GooglePlayGames.BasicApi.SavedGame；
public class SaveSample : MonoBehaviour {
System.Action<bool> mAuthCallback;
GameData slot0;
bool mSaving;
private Texture2D mScreenImage;
// Use this for initialization
void Start () {
slot0 = new GameData("New game");
mAuthCallback = (bool success) => {
if (success) {
Debug.Log("Authentication was successful!");
slot0.State = "Click load or save";
}
else {
Debug.LogWarning("Authentication failed!");
}
};
PlayGamesClientConfiguration config = new PlayGamesClientConfiguration.Builder()
.EnableSavedGames()
.Build();
PlayGamesPlatform.InitializeInstance(config);
// Activate the Play Games platform. This will make it the default
// implementation of Social.Active
PlayGamesPlatform.Activate();
// enable debug logs (note: we do this because this is a sample; on your production
// app, you probably don't want this turned on by default, as it will fill the user's
// logs with debug info).
PlayGamesPlatform.DebugLogEnabled = true;
//Login explicitly for this sample, usually this would be silent
PlayGamesPlatform.Instance.Authenticate(mAuthCallback, false);
}
public void CaptureScreenshot() {
mScreenImage = new Texture2D(Screen.width, Screen.height);
mScreenImage.ReadPixels(new Rect(0, 0, Screen.width, Screen.height), 0, 0);
mScreenImage.Apply();
}
protected virtual void OnGUI() {
Screen.fullScreen = true;
int buttonHeight = Screen.height / 20;
int buttonWidth = Screen.width / 5;
GUI.skin.label.fontSize = 60;
GUI.skin.button.fontSize = 60;
Rect statusRect = new Rect(10,20,Screen.width,200);
Rect dataRect = new Rect( 10, 250, Screen.width,100);
Rect b1Rect = new Rect(10, 800, buttonWidth, buttonHeight);
Rect b2Rect = new Rect(b1Rect.x + 20 + buttonWidth, b1Rect.y, buttonWidth, buttonHeight);
if(!Social.localUser.authenticated) {
if(GUI.Button(b1Rect, "Signin")) {
Social.localUser.Authenticate(mAuthCallback);
}
}
else {
if(GUI.Button(b1Rect, "Load")) {
mSaving = false;
((PlayGamesPlatform)Social.Active).SavedGame.ShowSelectSavedGameUI("Select game to load",
4,false,false,SavedGameSelected);
}
GUI.Label(dataRect, slot0.Data);
}
if(GUI.Button(b2Rect, "Save")) {
int idx = slot0.Data.IndexOf("_");
if (idx > 0) {
int val = Convert.ToInt32(slot0.Data.Substring(idx+1));
val++;
slot0.Data = "Save_" + val;
}
else {
slot0.Data = "Save_0";
}
mSaving = true;
CaptureScreenshot();
((PlayGamesPlatform)Social.Active).SavedGame.ShowSelectSavedGameUI("Save game progress",
4,true,true,SavedGameSelected);
}
GUI.Label(statusRect, slot0.State);
}
public void SavedGameSelected(SelectUIStatus status, ISavedGameMetadata game) {
if (status == SelectUIStatus.SavedGameSelected) {
string filename = game.Filename;
Debug.Log("opening saved game: " + game);
if(mSaving && (filename == null || filename.Length == 0)) {
filename = "save" + DateTime.Now.ToBinary();
}
if (mSaving) {
slot0.State = "Saving to " + filename;
}
else {
slot0.State = "Loading from " + filename;
}
//open the data.
((PlayGamesPlatform)Social.Active).SavedGame.OpenWithAutomaticConflictResolution(filename,
DataSource.ReadCacheOrNetwork,
ConflictResolutionStrategy.UseLongestPlaytime,
SavedGameOpened);
} else {
Debug.LogWarning("Error selecting save game: " + status);
}
}
public void SavedGameOpened(SavedGameRequestStatus status, ISavedGameMetadata game) {
if(status == SavedGameRequestStatus.Success) {
if( mSaving) {
slot0.State = "Opened, now writing";
byte[] pngData = (mScreenImage!=null) ?mScreenImage.EncodeToPNG():null;
Debug.Log("Saving to " + game);
byte[] data = slot0.ToBytes();
TimeSpan playedTime = slot0.TotalPlayingTime;
SavedGameMetadataUpdate.Builder builder = new
SavedGameMetadataUpdate.Builder()
.WithUpdatedPlayedTime(playedTime)
.WithUpdatedDescription("Saved Game at " + DateTime.Now);
if (pngData != null) {
Debug.Log("Save image of len " + pngData.Length);
builder = builder.WithUpdatedPngCoverImage(pngData);
}
else {
Debug.Log ("No image avail");
}
SavedGameMetadataUpdate updatedMetadata = builder.Build();
((PlayGamesPlatform)Social.Active).SavedGame.CommitUpdate(game,updatedMetadata,data,SavedGameWritten);
} else {
slot0.State = "Opened, reading...";
((PlayGamesPlatform)Social.Active).SavedGame.ReadBinaryData(game,SavedGameLoaded);
}
} else {
Debug.LogWarning("Error opening game: " + status);
}
}
public void SavedGameLoaded(SavedGameRequestStatus status, byte[] data) {
if (status == SavedGameRequestStatus.Success) {
Debug.Log("SaveGameLoaded, success=" + status);
slot0 = GameData.FromBytes(data);
} else {
Debug.LogWarning("Error reading game: " + status);
}
}
public void SavedGameWritten(SavedGameRequestStatus status, ISavedGameMetadata game) {
if(status == SavedGameRequestStatus.Success) {
Debug.Log ("Game " + game.Description + " written");
slot0.State = "Saved!";
} else {
Debug.LogWarning("Error saving game: " + status);
}
}
public class GameData {
private TimeSpan mPlayingTime;
private DateTime mLoadedTime;
string mData;
string mState;
static readonly string HEADER = "GDv1";
public GameData(string data) {
mData = data;
mState = "Initialized, modified";
mPlayingTime = new TimeSpan();
mLoadedTime = DateTime.Now;
}
public TimeSpan TotalPlayingTime {
get {
TimeSpan delta = DateTime.Now.Subtract(mLoadedTime);
return mPlayingTime.Add(delta);
}
}
public override string ToString () {
string s = HEADER + ":" + mData;
s += ":" + TotalPlayingTime.TotalMilliseconds;
return s;
}
public byte[] ToBytes() {
return System.Text.ASCIIEncoding.Default.GetBytes(ToString());
}
public static GameData FromBytes (byte[] bytes) {
return FromString(System.Text.ASCIIEncoding.Default.GetString(bytes));
}
public static GameData FromString (string s) {
GameData gd = new GameData("initializing from string");
string[] p = s.Split(new char[] { ':' });
if (!p[0].StartsWith(HEADER)) {
Debug.LogError("Failed to parse game data from: " + s);
return gd;
}
gd.mData = p[1];
double val = Double.Parse(p[2]);
gd.mPlayingTime = TimeSpan.FromMilliseconds(val>0f?val:0f);
gd.mLoadedTime = DateTime.Now;
gd.mState = "Loaded successfully";
return gd;
}
public string Data {
get {
return mData;
}
set {
mData = value;
mState += ", modified";
}
}
public string State {
get {
return mState;
}
set {
mState = value;
}
}
}
}
【讨论】：