iOS Gamecenter 程序化匹配

Question

我正在尝试使用自定义 UI（没有 GKMatchMakerViewController）实现实时多人游戏。我正在使用startBrowsingForNearbyPlayersWithReachableHandler: ^(NSString *playerID, BOOL reachable) 查找本地玩家，然后使用GKMatchmaker 单例（我已经启动）发起匹配请求。

这就是我遇到麻烦的地方。当我发送请求时，完成处理程序几乎立即触发，没有错误，并且它返回的匹配项的预期玩家计数为零。同时，对方玩家肯定没有回应这个请求。

相关代码：

- (void) findMatch
{
GKMatchRequest *request = [[GKMatchRequest alloc] init];
request.minPlayers = NUM_PLAYERS_PER_MATCH; //2
request.maxPlayers = NUM_PLAYERS_PER_MATCH; //2
if (nil != self.playersToInvite)
{
    // we always successfully get in this if-statement
    request.playersToInvite = self.playersToInvite;
    request.inviteeResponseHandler = ^(NSString *playerID, GKInviteeResponse
                                       response)
    {
        [self.delegate updateUIForPlayer: playerID accepted: (response ==
                                                              GKInviteeResponseAccepted)];
    };
}
request.inviteMessage = @"Let's Play!";

[self.matchmaker findMatchForRequest:request
    withCompletionHandler:^(GKMatch *match, NSError *error) {
        if (error) {
            // Print the error
            NSLog(@"%@", error.localizedDescription);
        }
        else if (match != nil)
        {
            self.currentMatch = match;
            self.currentMatch.delegate = self;

            // All players are connected
            if (match.expectedPlayerCount == 0)
            {
                // start match
                [self startMatch];
            }
            [self stopLookingForPlayers];
        }
    }];
}

Answer 1

想通了！我需要在我的邀请处理程序中调用- (void)matchForInvite:(GKInvite *)invite completionHandler:(void (^)(GKMatch *match, NSError *error))completionHandler，以便两个玩家拥有相同的比赛数据。