From the Getting Started with Game Center doc A player might have the same Game Center enabled game loaded on multiple devices. If your app has reported progress on an achievement from one device, note that the same achievement progress data will be provided by Game Center on other devices where the user plays your game. However, other ...
I suppose this question is language-agnostic, tho I'm asking it in regards to building an iPhone app that uses the new Game Center API, but please feel free to answer in general software engineering terms. I'm building a game for the iPhone that takes advantage of the new Game Center capabilities (i.e. Auto-matching, leaderboards, achi...
From the Getting Started with Game Center doc... Always check for network errors when reporting achievement progress to Game Center. If there was an error, it is important for your app to store any progress updates for later retransmission. This retransmission should occur at the soonest opportunity and without requiring separate user a...
I am watching Apple's overall intro to Game Center. It says that to be a game center game you have to: 1) Register your bundle ID through the developer portal. 2) When your game is launched, you have to authenticate a game center player. Is it OK if I make the authentication part optional, and if it happens later than launch? So m...
Hello. If I have an app that supports Game Center and I'd like to provide Achievements for completing a puzzle pack that's sold as an in-app purchase, how do I sync the iTunes account that's being charged for the in-app purchase with the Game Center user account that's doing the buying? As I understand it, they're two separate user acc...
I am looking for advice on how to associate a purchase with a particular user, (for example, a game center user) basically the user who makes the purchase. The purchase is a consumable item or subscription, so it can't be restored. My overall design using server product delivery mode is largely working, but it doesn't work with some edg...
Cocos2d version: v0.99.04 I'm adding Game Center to my current application and I found some code to open up the GKMatchmakerViewController. It seems to work well, except when it gets dismissed it changes the orientation in the simulator to portrait. The game only runs in landscape. I rotate the device back to landscape and all the cocos...
I have a website. I was wondering if Apple exposed its Game Center data via a web api. If would be cool if I could show users their Game Center info right in my website! Let me know folks. ...