Game center best practices help

[luigi1977]

Hello,

i am finishing my game (it is a quiz). I have some questions about the way to integrate Game Center. It is optional in fact in my game.
Two scenarios :
- authentication of the user at the end of the game when he manually try to submit final score with a specific button (let's say in gameover screen)

-authentication at the beginning of the game(as apple suggests) and score submitting automatically done during the game

Questions:
are The two options allowed by apple reviewers or game will be rejected?
which on is the best?
I was thinking that with second options i can have statistics on how many players played the game but should be not the best from the point of view of traffic.

thanks a lot

thanks

[XcodeMagic]

Go with authenticating the player at the start of the game thats what I learnt from 3 game cetner tutorials. thats what I got in my game and it works fine.

Also I will make it so that when game is over the score will automatically submit to game center so the user doesnt have to worry about submitting.

[luigi1977]

Originally Posted by XcodeMagic

Go with authenticating the player at the start of the game thats what I learnt from 3 game cetner tutorials. thats what I got in my game and it works fine.

Also I will make it so that when game is over the score will automatically submit to game center so the user doesnt have to worry about submitting.

Thanks XcodeMagic i did like you said.
I have another doubt .. about button that triggers the display of leaderboard in my menu screen.

Let's say an user load the app and the beginning he refuses to authenticate by pressing cancel inside gamecenter login popup.. Should i hide leaderboard button in menu screen? or it should be always visibile and if pressed it will popup again the alert asking to authenticate ?

Also what about people with device not compatible with gamecenter: should i hide leaderboard button as there will be no meaning to have it..?

I am a little bit confused
thanks

[seagulljl]

How To Make A Simple Multiplayer Game with Game Center Tutorial: Part 1/2 | Ray Wenderlich

[XcodeMagic]

Thanks XcodeMagic i did like you said.
I have another doubt .. about button that triggers the display of leaderboard in my menu screen.

Let's say an user load the app and the beginning he refuses to authenticate by pressing cancel inside gamecenter login popup.. Should i hide leaderboard button in menu screen? or it should be always visibile and if pressed it will popup again the alert asking to authenticate ?

Also what about people with device not compatible with gamecenter: should i hide leaderboard button as there will be no meaning to have it..?

I am a little bit confused
thanks

I wouldnt hide the leaderboard button. It helps the user know that the ability to see and compete in the leader boards is still there IF they only authenticate. I dont know why someone would press cancel in the first place lol.. BUT this helps because if you are playing and there is no internet around, it wont authenticate so when they get internet they can try to authenticate and log in again. I would say also to include the authenticate process at the game over state so that when you start a game but you got no internet, but once you finish the game you have internet, game center will conntect AUTOMATICALLy asking you to authenticate if you arent already. This could be very nice for the user.. I wont go so much into this with my game. I will simple have a automatic log into game cetner at viewdidload and leaderboards. If there is no internet than game center wont register BUT I could do so that your high score in the IN game high score table can be sumbited into game center if it wasnt becayse you had no internet.

Now about the device incompatibility.. well you are making this for an iPhone so Im guessing the earlier iphones that arent compatible? Or androids? If they arent compatible then yes hide that option, or simply make an alert saying you arent compatible. Thats much easier. if authentication fails because of incompabality or no internet just make an alert saying " Cant connect to game center" Simply as that

[luigi1977]

Xodemagic . Finally my game was accepted by apple reviewers.. Thanks again..
Do you know if Gamecenter leaderboards could be checked online?
I would like to check gamecenter leaderboards of game users.. but i have an iPhone 3g that is not compatible with GC