What’s new in Game Center: Widgets, friends, and multiplayer improvements

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Discuss the WWDC21 session What’s new in Game Center: Widgets, friends, and multiplayer improvements.

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Hi all! I currently have a free app that has been available on the app store for about a year now, and I would like to create a paid version of this app which grants all features and unlockables to the user. The problem I am faced with is that the free version of the app already has around 400 users on the leaderboards, and I would like for the free-to-play users and pay-to-play users to be able to compete with each other over a shared leaderboard. Would it somehow be possible to link the 2 leaderboards between the 2 apps, or have the 2 apps reference the same leaderboard so that all users may compete with one another? Thanks in advance!
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by DogeFlyer.
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Is canStartWithMinimumPlayers(false) ignored when auto-matching opponents? Without sending invites, setting the desired opponent number to 3, with a minimum of 2. canStartWithMinimumPlayers is set to false. All devices are on iOS 15. Press Start, auto-matching begins. 2 players connect and the game begins without waiting for the third. From the example video, after two friends have accepted invites, the host is allowed to start at minimum and auto-matching continues in the background. What is the expected behaviour of canStartWithMinimumPlayers when auto-matching?
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by Jazzer008.
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With the recent update to the iPhone, they required me to login again to my account for Game Center. Unfortunately, I have not had to do it for so long that I don’t remember my password. When I went to retrieve a new password, I realized my account is attached to an old email that is now defunct. How can I fix this problem?
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When I go into the Game Center tab in settings it would show the error “The operation couldn’t be completed”. I don’t know how this happened or how to fix it. I had this problem before but I just left it alone and it worked again. (Sorry for the wrong tag I’m new to using this)
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by JennHopi.
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So I have this game I am trying to disconnect from so I can connect my iPad account into but when I go to Game Center all of my games are their except the one I’m looking for so I can’t disconnect it I tried seeing if it was on my iPad but it did the same thing any suggestions?
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I have an app in development that uses GameKit to show leaderboards and achievements. All seem to work well until I added Achievements. Now not only does the new achievements not show up, I am unable to also add any new leaderboards to the app. (Error Domain=GKErrorDomain Code=3 "The requested operation could not be completed due to an error communicating with the server." UserInfo={GKServerStatusCode=5044, NSLocalizedDescription=The requested operation could not be completed due to an error communicating with the server., NSUnderlyingError=0x283ee3510 {Error Domain=GKServerErrorDomain Code=5044 "status = 5044, App does not support achievements" UserInfo={GKServerStatusCode=5044, NSLocalizedFailureReason=status = 5044, App does not support achievements}}}) This is what I am seeing on my console when I do  GKAchievement.loadAchievements { (achievements, error) in                          if error != nil {                 print("Error \(error)")             } else {                 print("\(achievements)")             }         } I have tried everything including adding a new leaderboard, removing, reordering etc.. What am I missing here ?
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Hi, I'm trying to implement the following Fast Start code shown during WWDC 2021 . However, I'm getting an error on the GameSceneViewController line. I've tried this with both a Game and an App template in Xcode 13, but both get hung up here. Can anyone help me make this work? Thank you so much
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by tdevin.
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So my Game Center when I go onto it in settings it says unable to connect to network but everything else works Regards Declan
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I'm attempting to configure a widget on iOS 15 that only supports the systemExtraLarge size. I already do this for the other sizes but seems impossible for systemExtraLarge in a way that is compatible with iOS 14 as well. If I configure it with .supportedFamilies([.systemExtraLarge]) on iOS 15 everything will work as expected. The widget is shown on the iPad and hidden on the iPhone. On iOS 14 the trouble is that I appear to need to provide something for the supportedFamilies call. If I pass this in as empty (.supportedFamilies([])), then appears that WidgetKit falls over and won't display any of my other widgets at all, including my other Small/Medium/Large widgets. It disappears entirely from the Widget Gallery list. Right now the best I can do is put a systemLarge in there as well on iOS 14, that shows a message like 'Widget Size Not supported on your Device'. Which is rather awkward and likely to cause confusion. If anyone have any suggestions or strategies to get around this I'd be delighted to hear it!
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by dtsdts.
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If the player dies and loses the game then the game will restart. Once the game restarts the player is no longer able to get achievements. The only way he/she can get achievements is to actually close the game down and reopen it. Any thoughts on why that might be?
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I have an issue with my Game Center when i go to it in settings it shows me not available and some games need register with Game Center to sign in
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by Abadeer.
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