I am trying to create my app on iTunes Connect, so I can add my game center features. When I reach the screen where I fill in the default language, app name, sku number, and bundle id, I receive an...

I am developing a small word game as a side project and chose Flutter to release the game for both Android and iOS. I am able to use flutter packages (e.g. https://pub.dev/packages/games_services) ...

I created a tester app to test adding a GameCenter leaderboard to a simple SwiftUI game I am creating. I have been unable to figure out how to display the Game Center leaderboard with all the score...

I am creating a game using swift on apple's Xcode 6 beta 6, and trying to add the high score of my game to gamecenter leader boards. I have created the leader boards in gamecenter. So, how do I a...

I'm trying to use GKOctree for efficient retrieval of object in 3D space. However the following code doesn't seem to work as expected: import GameplayKit let tree = GKOctree(boundingBox: GKBox( ...

I have the below code to authenticate a local player in Game Center in my SwiftUI app. I want Game Center to prompt user to login if the player is not already login in but this doesn't happen. clas...

I get the error: Error Domain=GKErrorDomain Code=27 "The requested operation could not be completed because you are not signed in to iCloud" UserInfo=0x1889f160 {NSLocalizedDescription=The reque...

I'm trying to invite nearby players to a match, but the invite is either never sent or never received. GKMatchMaker startBrowsingForNearbyPlayersWithHandler works and returns nearby players that ...

I implemented GameKit into my iOS game including the saved game feature. Here an example how I save and load a game: MobSvcSavedGameData.h #ifndef MOBSVC_SAVEDGAMEDATA_H #define MOBSVC_SAVEDGAME...

I did not find a way in the GameKit documentation to delete a player's score from within my app. Is this possible?

In objC the syntax written by Rawendrich for GKTurnBasedEventListener, which was GKTurnBasedEventHandler there at that time, now changed by Apple is as below. if (!gameCenterAvailable) return; ...

If I try to change the value of the speed parameter of a GKAgent2D (or its parent class GKAgent) in iOS9 I get this unrecognised selector error: *** Terminating app due to uncaught exception 'NS...

So I am a relatively new iOS developer but thanks to Stackoverflow, i managed to get peer to peer data communication for my app working without the need of a server using gamekit/GKSessions. Basic...

I've been reading up on how to transfer data between iOS devices over Bluetooth using GameKit. I'm not writing a game, per se, but do have a need to transfer a small amount of binary data between t...

I have the following code that I have been using before to handle invitations: [GKMatchmaker sharedMatchmaker].inviteHandler = ^(GKInvite *acceptedInvite, NSArray *playersToInvite) { // Insert ga...

GameCenter has been working fine before release when updating the high scores. Now, it has been over 24 hours and the highscores will not update at all. Instead, it only shows my score in "Today" a...

I've been researching Apple's state machine for Swift and found several examples, but none of them really dead simple. Could someone whip up a super simple GKStateMachine, perhaps with two states,...

I want to save game data with GKLocalPlayer and saveGameData method. [localPlayer saveGameData:playerData withName:@"SolarFlares" completionHandler:^(GKSavedGame *savedGame, NSError *error) { if...

I've been developing a game using SpriteKit and Swift but I seem to be having trouble determining what the real differences are between the GameViewController and any one of my SKScenes. I'm trying...

I'm pretty new to Swift and I'm having some trouble implementing a leaderboard into my game. I just watched a tutorial: 'Game Center Leaderboards! (Swift 2 in Xcode)' in which the GameCenter inform...

I started investigating this issue with this question which was partially resolved in the iOS 9.2 SDK. However, upon further investigation, I realized that this framework was still not working as ...

I'm interested in connecting to iOS-based devices over Bluetooth. I can see that the "Local Network" service is exposed, but I cannot find any extra information about it. Property stored under key ...

How to get score of local player from Leaderboard Game Center? I tried this code, but it returns nothing. Anybody know how to solve it, or is there better way how to get score? - (NSString*) getSc...

As the apple guidelines said; I've implemented the GKLocalPlayerListener protocol in my game center class and add the local player as listener as soon as he's authenticated: func authenticationCh...

I am trying to subclass GKGraphNode2D to also include different penalties for different terrains (in the costToNode method). When I create a new GKGraph with an array of my new subclass and call fi...