The Game Center documentation indicates that the
playersToInviteparameter is non-nil when your application is launched directly from the Game Center application to host a match.
A few people have asked how this works exactly, i.e. there doesn't appear to be a way to select a friend from the Game Center application and invite them to play from Game Center; it only works when you invite in-game. Is this documentation dated or is there a secret way to start a game-specific match from Game Center? I'd like to test my inviteHandler but I've been unable to determine how this parameter is passed to the application.
[GKMatchmaker sharedMatchmaker].inviteHandler = ^(GKInvite *acceptedInvite, NSArray *playersToInvite)
{
// clean up games in progress here
if (acceptedInvite)
{
NSLog(@"acceptedInvite %@", acceptedInvite);
// The acceptedInvite parameter is non-nil when the application receives an
// invitation directly from another player.
GKMatchmakerViewController *mmvc = [[[GKMatchmakerViewController alloc] initWithInvite:acceptedInvite] autorelease];
mmvc.matchmakerDelegate = self;
[self disableHomeUI];
[self presentModalViewController:mmvc animated:YES];
}
else if (playersToInvite)
{
NSLog(@"playersToInvite %@", playersToInvite);
// playersToInvite parameter is non-nil when your application is launched
// directly from the Game Center application to host a match
[self disableHomeUI];
[self doPresentMatchMakerUIWithPlayersToInvite:playersToInvite];
}
};