Yes PSY,
But when it return 0 and when i call GameCenterSetup() command. The application crash
I finded this https://forum.thegamecreators.com/thread/217861
"[...]Do no test Game Services via broadcasting!!
For some reason, this causes your device to lose access to the leaderboard once you have published. I assume its because the AppGameKit Player doesn't have the associated App ID? "
And that's why my application doesn't works with GameCenterSetup() now. It's difficult to find a tuto for repair this problem.
Space Looter