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Questions tagged [game-center]

The inner workings and use of Apple's GameCenter API in your apps.

1852 questions
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Game Center : match delegate’s not called after finding a match

I'm trying to use game center : multi player Till now, players are Authenticating to Game center, they can send/read scores, and acheivements. For multiplayer features, I tried both methods : - using Game center interface to find a match. - Find…
simoscream
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Game Center vs OpenFeint

I would like to add a global leaderboard for my games score. Would you recommend Game Center or OpenFeint for implementing this? What is needed to setup a global leaderboard? Is the server hosted by the service? Thanks
some_id
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2 answers

GameCenter Invitation Handler

trying to implement a multiplayer. Using the sample from Game Center - Sending and receiving data. Everything seems okay, but in apple documentation there is also said about invitation handler. [GKMatchmaker sharedMatchmaker].inviteHandler =…
0xDE4E15B
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iOS Development: When receiving a Game Center invite, how do I obtain the GKMatch object?

I'm building an iPhone game that uses Game Center and I'm having a hard time understanding how to start a match game that was started by receiving an invitation to play from a friend. The docs say this... The acceptedInvite parameter is non-nil…
BeachRunnerFred
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Game Center - Sending and receiving data

EDIT: I have made a clean, new project, but still can't get it working. Please download it, there is a little code to look at and probably easy for a professional or anyone remotely experience to see whats I am doing wrong. Just trying to send that…
Josh Kahane
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1 answer

Understanding the "daily" and "weekly" scopes in Unity.Social & Apple GameCenter Leaderboards

Unity's Social.TimeScope documentation says: TimeScope.Today: Only return scores from today https://docs.unity3d.com/352/Documentation/ScriptReference/TimeScope.Today.html However, Apple's native Swift documentation says: case today: Each…
BlueYoshi
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Game Center custom leaderboard - Do I really need to make 2 calls to get a player's alias?

I'm using game center to set up a custom leaderboard, when it comes to retrieving the data for my UITableView, I only get the playerID property for each entry, but not a much more useful alias property which I want to use to display who got each…
x0b
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Cocos 2d and Game Center (Leaderboard issue)

I cant really find my answer after browsing (not a lot of topics on cocos2d with game center) I currently have my sandbox game center set up and I am able to authenticate, but when I create the leaderboard it is launched sideways in portrait I…
Arbel
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Getting GameCenter invite friend to work (iOS9?)

I cannot get GameCenter invite friend to work. The match maker view controller shortly shows the invited player and a little text "Failed" under it. Maybe I picked the wrong time to learn GameCenter, as quite a few people report difficulties with…
Rainer Schwarze
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3 answers

How to open GameCenter in tvOS

How can I open a game center leaderboard in tvOS? I've used this code for my iPhone games, 'leaderboardIdentifier' aren't available on tvOS. I've planned to use the same leaderboard on the AppleTV (it will be the same game). Many thanks for your…
Stefan
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2 answers

Only use Automatch in Gamecenter

How do you remove the invite friend button from a GKMatchmakerViewController? When printing all of the subviews in it I only see the navigation bar. I am presenting it like this: GKMatchmakerViewController *mmvc = [[GKMatchmakerViewController alloc]…
Wyetro
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1 answer

OSX Game Center: Couldn't communicate with a helper application

I'm setting up Game Center for my OSX game, but it can't authenticate player with the following error (OSX 10.10 Yosemite): I've got the following setings in iTunesConnect: and XCode: I'll appreciate any ideas how to make it work!
deko
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2 answers

Application is not recognized by Game Center after building with Xcode 6.0.1

I was building my game app on Xcode 5.1. The Game Center code is already in place and I've already configured my app through iTunes Connect (such as creating the app entry, setting the bundle identifier, setting up the game center leaderboards). I…
aresz
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1 answer

Button Animate like ios game center button

I am trying to make my buttons animate like buttons in ios game center. they seem to wobble and float about the screen like a bubble. I've tried moving my buttons randomly on the screen, make them move in a constant cirular path at the same time but…
Junaid Ahmed
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GKLocalPlayer authentication not working, but isAuthenticated returns YES (Game Center sandbox)

I'm working on integrating turn based matches in my game and a few days ago I started getting weird errors from the GameKit API saying that the local player is not authenticated, even though he is. When I launch the app, the authenticateHandler is…
Fabian Kreiser
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