Game Center is the social network and associated back end tools for Apple's mobile and desktop platforms.

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8
votes
1answer
684 views

How are you handling scores that can worsen (e.g. Elo rating) in Game Center?

Currently, Game Center leaderboard scores can only change one-way (e.g. increase). This makes it impossible (I think) to deal with Elo ratings and the like. How are you getting around this in your ...
7
votes
1answer
3k views

Network client-server message exchange and clock synchronization help

i'm doing a fast paced physics game that is a table hockey. With two mallets and one puck. The game runs on iphone / ipad and i'm doing the multiplayer part through GameCenter. This is how the ...
7
votes
1answer
210 views

How can I prevent a buggy old version of my game from posting scores to the Gamecenter Leaderboards?

I found that an older version of my game has a bug that causes some crazy scores to be posted to the leaderboard. I can delete these scores by editing the acceptable range in iTunesConnect and my ...
5
votes
2answers
197 views

Game uses gamecenter in iphone - can I design a fallback for 3G and prior devices?

If I develop a game using gamecenter, does itunes connect lock me in to only supporting 3GS and above with iOS 4.0 and above, or will it still allow sales of my game on older devices (as long as I ...
5
votes
1answer
687 views

iOS Game Center - Quit turn-based games for previous version of app

I have a game on the iOS App Store that uses Game Center for turn-based multiplayer (GKTurnBasedMatch). I recently updated the app with a new game mode and I had to change the network protocol for ...
4
votes
2answers
2k views

How to synchronize clocks in multiplayer game?

I have 2 to 3 clients, that can exchange messages through Apple Game Center. The only synchronization I need is: start the game at the same moment. I guess this involves clock synchronization. How ...
4
votes
2answers
1k views

Presenting game center leaderboard

I have the following code: -(void)showLeaderboard { GKLeaderboardViewController *leaderboardController = [[GKLeaderboardViewController alloc] init]; if (leaderboardController != NULL) { ...
4
votes
1answer
394 views

Can I start implementing Game Center in my iPhone app, without having created a new app in iTunes connect?

I'm in the process of developing a game for the iPhone and I want to add Game Center support to it. The problem, as I see it, is that I need to have named my app, created an icon and uploaded ...
4
votes
1answer
335 views

Do leaderboard sets (in Game Center) allow 500 unique leaderboards?

The Game Kit Programming Guide for iOS claims: The number of different leaderboards allowed increases to 500 leaderboards per game when leaderboard sets have been enabled...Leaderboard sets ...
3
votes
1answer
121 views

Should “games played this week” be computed from a fixed or running time span?

I'd like to create a leaderboard that shows how many games each player has played. This works fine for the "all time" section in Game Center, since I can just submit the total number. But what I ...
3
votes
2answers
173 views

Is it possible exchange points between players using Game Center?

I want to create a turn based two player game. In my game in a certain stage if player 1 loses he must give few points that he have to the opposite player. The game is implemented with game center. Is ...
3
votes
2answers
197 views

How do I allow a player to manager several games at once with different players using game center?

I wish to do a turn based multiplayer game like Words with friends on the iphone. I would like to know the approach for the implementation to allow the user to continue games that are currently still ...
3
votes
1answer
212 views

Issue with TurnBased Multiplayer Game in Game-kit

I am working with cocos2d game in which i am implementing Game-kit. My game supports multiplayer option. Actually as given example Raywenderlich link. I am GKTurnBasedMultiplayer class from Game-kit. ...
3
votes
1answer
723 views

Apple Game Center - Sharing Data between 2 SKUs possible or not?

Question: Is it possible to access the same leaderboards and achievements via GC from 2 versions of a game (i.e. 2 different SKUs, one for iPhone/iPod and another for iPad. Where both are actually the ...
2
votes
1answer
183 views

How can I create a smooth simulation for a fast-paced, multiplayer table hockey game?

I'm adding multiplayer to an iPhone game that we have in our company. It's a sort of 'table hockey' game, with a puck and two mallets. It's a pretty fast game, so I need a smooth experience at both ...
2
votes
3answers
889 views

How do I make a turn based game for two players who play with different devices on iOS?

I only have experience in physics-based games in cocos2d. I want to develop a turn-based game in Cocoa Touch (iOS). Two players will play this game on different devices which connect via Bluetooth or ...
2
votes
2answers
1k views

Sync clocks on a real time multiplayer game - Is this ok?

I'm developing a multiplayer game through Gamecenter in unity with prime31 plugin. This is how I sync the clocks of the two players (right now there will only be 2 player in one match), and I wanted ...
2
votes
1answer
386 views

Game Center: Leaderboard score inconsistencies

Background I'm currently developing a simple library that mirrors Game Center's functionalities locally. Basically, this library is a system that manages achievements and leaderboards, and optionally ...
2
votes
1answer
263 views

Design leaderboard ratings for quiz games

Back in March 2011 i started the following post: How to design a leaderboard? Now my quiz game have been out for approximately a year and sold pretty decently. I am working on to update the game ...
1
vote
5answers
2k views

How can I make my score-based game addictive?

I need some ideas to make players interested in the game result. Otherwise, the player plays again to get high score. My game is a calculation game that measures the speed of calculations that the ...
1
vote
1answer
439 views

Mini Game Platform for PC - similar to Warcraft III Custom Games

I think it would be fun to make a game for pc that has an online community like Warcraft III (the RTS, not the MMORPG), aka there's lobbies and chat rooms and users can host games to play with ...
1
vote
1answer
157 views

How should I manage persistent score in Game Center leaderboards?

Let's say that I'm developing an iOS RPG where the player gains 1 point per monster kill. The amount of monsters killed is persistent data: it is an endless adventure, and the score keeps on growing. ...
1
vote
2answers
154 views

Submit scores for multiple players to Game Center from one iPhone

I have a quiz game, which i would like to integrate Game Center for. This is a "local" multiplayer game with the possibility to play six players per match. Is it possible to submit scores to the Game ...
1
vote
0answers
49 views

GameCenter and multiple user's data on same device

I was wondering. Is there any official guidance from Apple suggesting how to deal with multiple GameCenter users data on the same device? My current plan is to create one file for each user and a ...
0
votes
2answers
408 views

What is the most secure way to archive a GKScore to be re-submitted later?

I'm looking for the safest way to archive and store a GKScore that needs to be re-submitted to Game Center (say, because the user didn't have a network connection at the time the score was earned). I ...
0
votes
1answer
67 views

How can I determine if the player holds the top leaderboard spot in Game Center?

I have integrated Game Center into my game and I want to make an achievement that is earned if the user holds the #1 spot on Game Center. How do I access that information with code?
0
votes
2answers
750 views

Which platform (server) use for turn based card game?

My game will do next: Dealing 4 cards to every player Random player is turning over 1 card, after him another (which has seen card of previous player) and etc. On the end player with the highest ...
0
votes
1answer
1k views

Integrating game center into cocos2d

I have a Cocos 2d game in which I want to have achievements and a leader-board. What are the steps I would need to take? Thanks P.S All of the tutorials I have found are outdated. So please write ...
0
votes
1answer
97 views

Should be GameKit used together with GameCenter?

As far as I understand, GameKit provides Bluetooth-maches, while GameCenter allows to play matches through internet. So it looks like the best scenario is to use both of them? Is this reasonable?
0
votes
1answer
253 views

How to test a turn-based ios Game Center game with 2 devices?

This might well be a very dumb question, but here goes anyway, I'm planning my turn-based ios game center game, obviously I know I'll need 2 iDevices to test it on, but how would I test the online ...
0
votes
0answers
15 views

cross game center client api [closed]

Is there any package or api for unity so with, we can use "apple game center, google play game services and Facebook's game services" together(achievements, leaderboards and scores)? We want to ...
0
votes
1answer
60 views

Game Center Leaderboard not dismissing

I was implementing Game Center into my app and all was going well except for the leaderboard done button not dismissing the leaderboard even with gameCenterControllerDidFinish added in. I call up the ...
0
votes
0answers
55 views

iTunes Connect Not Deleting Game Center Leaderboard Test Data

I was wondering if anyone has had this problem, and if they were able to rectify it: For the last few days, I've been trying to delete Game Center test data from iTunes Connect unsuccessfully. The ...
0
votes
0answers
35 views

Game Center- modifying turn-based match

I was looking through Apple's programming guide for Game Center to see if it would be able to do what I would like to in my game, but I couldn't find a conclusive answer. I'm looking to make a game ...
0
votes
0answers
25 views

How can I fix latency problems for car game? [duplicate]

Basically I'm trying to make a online car racing game for IOS using Game Center real time multiplayer. I have setup a timer that sends data every 0.02 seconds to the other player with the current ...
0
votes
1answer
67 views

How can I know when a player quits out of a turn from the Game Center UI?

In an iOS Game Center managed turn based game, if a player quits out of turn from the Game Center UI, then turnBasedMatchmakerViewController:playerQuitForMatch isn't called (as expected). However, the ...
0
votes
0answers
301 views

How to use Unity3D Social for OSX?

I can't seem to find any documentation using the Social APIs with OSX. I can successfully use the iOS Social Libraries, but when I translate it over to OSX, it doesn't do anything. Also please refrain ...
-3
votes
1answer
343 views

openfeint or gamecenter? [closed]

which one has more potential customers, easier API, and wider feature list? i'm going to develop implement one of those two for highscore recording in my game which ones gives more advantages? and by ...