I'm trying to implement a real-time multiplayer game with a custom UI (no GKMatchMakerViewController). I'm using startBrowsingForNearbyPlayersWithReachableHandler:
^(NSString *playerID, BOOL reachable) to find a local player, and then initiating a match request with the GKMatchmaker singleton (which I have already initiated).
Here's where I'm having trouble. When I send a request, the completion handler fires almost immediately, without an error, and the match it returns has an expected player count of zero. Meanwhile, the other player definitely has not responded to the request.
Relevant code:
- (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];
}
}];
}
Figured it out! I needed to call - (void)matchForInvite:(GKInvite *)invite completionHandler:(void (^)(GKMatch *match, NSError *error))completionHandler in my invitation handler so that both players have the same match data.
Related
I would like to download score from GameCenter, but I don't know how to wait, when score is downloaded. When I run this code, it returns null. I think, that method have to wait when [leaderboardRequest loadScoresWithCompletionHandler: ... will have score downloaded.
- (NSString*) getScore: (NSString*) leaderboardID
{
__block NSString *score = nil;
GKLeaderboard *leaderboardRequest = [[GKLeaderboard alloc] init];
if (leaderboardRequest != nil)
{
leaderboardRequest.identifier = leaderboardID;
[leaderboardRequest loadScoresWithCompletionHandler: ^(NSArray *scores, NSError *error) {
if (error != nil)
{
NSLog(#"%#", [error localizedDescription]);
}
if (scores != nil)
{
int64_t scoreInt = leaderboardRequest.localPlayerScore.value;
score = [NSString stringWithFormat:#"%lld", scoreInt];
}
}];
}
return score;
}
The code from the completion handler will be called when the operation is complete (on another thread).
You have several options there, you can store the score somewhere and post a notification to notify the main thread that the operation is completed.
I’m trying to make a custom matchmakingview using a matchmaker. The code below is used to find a match.
When i run this on two different devices with different Game Center accounts, both will get a match but none will connect to the match. They will just get stuck in the while loop in infinity and never get out. Have i missed something, do you need to call something to actually connect to the match?
- (void) findMatch{
GKMatchRequest *request = [[GKMatchRequest alloc] init];
request.minPlayers = 2;
request.maxPlayers = 2;
request.playersToInvite = nil;
NSLog(#"Start searching!");
[matchmaker findMatchForRequest:request
withCompletionHandler:^(GKMatch *match, NSError *error)
{
if (error) {
// Print the error
NSLog(#"%#", error.localizedDescription);
}
else if (match != nil)
{
curMatch = match;
curMatch.delegate = self;
NSLog(#"Expected: %i", match.expectedPlayerCount);
while (match.expectedPlayerCount != 0){
NSLog(#"PLayers: %i", curMatch.playerIDs.count);
}
NSLog(#"Start match!");
}
}];
You should not be using a while loop to wait for expectedPlayerCount to reach 0, instead implement the GKMatchDelegate method:
- (void)match:(GKMatch *)match player:(NSString *)playerID didChangeState:(GKPlayerConnectionState)state {
if (!self.matchStarted && match.expectedPlayerCount == 0) {
self.matchStarted = YES;
//Now you should start your match.
}
}
I am trying to pull the turn based games in which a player is participating in order to populate my tableView.
This is my function to pull their games:
- (void) loadMatchDataWithArray:(NSMutableArray*)currentGames Flag:(bool*)returned
{
NSMutableArray* __block blockGames = currentGames;
bool* __block blockReturn = returned;
[GKTurnBasedMatch loadMatchesWithCompletionHandler:^(NSArray *matches, NSError *error)
{
if (matches)
{
for (int i = 0; i < matches.count; i++)
{
[(GKTurnBasedMatch*)matches[i] loadMatchDataWithCompletionHandler: ^(NSData *matchData, NSError *error)
{
int size = [matchData length];
if (size != 0)
{
Game* game = [NSKeyedUnarchiver unarchiveObjectWithData:matchData];
[blockGames addObject:game];
}
else
{
Game* game = [[Game alloc] init];
[blockGames addObject:game];
game.activePlayer = [GKLocalPlayer localPlayer];
}
*blockReturn = true;
}];
}
}
else
{
*blockReturn = true;
}
}];
}
And this is where I call it:
- (void)viewDidLoad
{
[super viewDidLoad];
[[self tableView]
setBackgroundView:[[UIImageView alloc]
initWithImage:[UIImage imageNamed:#"iPhoneBackground-568h"]]];
bool* returned = false;
[[GKMatchHelper sharedInstance] loadMatchDataWithArray:currentGames Flag:returned];
while (!returned);
[self.tableView reloadData];
// Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO;
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
Sadly, this is just giving me a blank black screen and never returns. Is there a way that I can detect when my block comes back and display a loading spinner until then, at which point I would reload the table?
EDIT:
I have revised my code and brought the function inside my MainMenuViewController, and now it builds but never displays the data.
- (void) loadMatchData
{
NSMutableArray* __block blockGames = currentGames;
MainMenuViewController* __weakSelf = self;
[GKTurnBasedMatch loadMatchesWithCompletionHandler:^(NSArray *matches, NSError *error)
{
if (matches)
{
for (int i = 0; i < matches.count; i++)
{
[(GKTurnBasedMatch*)matches[i] loadMatchDataWithCompletionHandler: ^(NSData *matchData, NSError *error)
{
int size = [matchData length];
if (size != 0)
{
Game* game = [NSKeyedUnarchiver unarchiveObjectWithData:matchData];
[blockGames addObject:game];
}
else
{
Game* game = [[Game alloc] init];
[blockGames addObject:game];
game.activePlayer = [GKLocalPlayer localPlayer];
}
[__weakSelf.tableView reloadData];
}];
}
}
[__weakSelf.tableView reloadData];
}];
[__weakSelf.tableView reloadData];
}
And now in my ViewDidLoad I just call:
[self loadMatchData];
Oh dear. Do NOT halt the program execution with "while" loops!
Why not simply call [self.tableView reloadData] at the end of your block?
So,
Remove the last 2 lines in the viewDidLoad method
Replace *blockReturn = true; with [self.tableView reloadData] (you might need to keep a weak reference to 'self' to avoid retain cycles)
Never ever use while (this and that) to wait for an operation to complete. A non-responsive UI is bad and it will cause the users to abandon your app.
I am not knowing anything about gamecentre.I am working on the COCO application
I had gone through gamecenter guide and get able to integrate the game center in my application.
1)
Now the i am able enter the score in the gamecentre through my application.
By doing this:-
- (void) reportScore: (int64_t) score forCategory: (NSString*) category
{
GKScore *scoreReporter = [[[GKScore alloc] initWithCategory:category] autorelease];
scoreReporter.value = score;
[scoreReporter reportScoreWithCompletionHandler: ^(NSError *error)
{
[self callDelegateOnMainThread: #selector(scoreReported:) withArg: NULL error: error];
}];
}
I is working properly uptil yesterday.But now if i tried to update the score it is not updating.Please any one know the reason y the score is not updating in the game center
I had tried to search out but not get anything.
2)I want to send the current latitude & longitude of one player to another.
I came to know that it is possible by GKMATCH
GKMatchRequest *request = [[[GKMatchRequest alloc] init] autorelease];
request.minPlayers = 1;
request.maxPlayers = 1;
[[GKMatchmaker sharedMatchmaker] findMatchForRequest:request
withCompletionHandler:^(GKMatch *match, NSError *error) {
if (error || !match) {
// handle the error
}
else if (match != nil){
// match found
}}];
/*GKMatchRequest *request = [[[GKMatchRequest alloc] init] autorelease];
request.minPlayers = 1;
request.maxPlayers = 1;
GKMatchmakerViewController *mmvc = [[GKMatchmakerViewController alloc] initWithMatchRequest:request];
mmvc.matchmakerDelegate = self;
currentMatch.delegate=self;
[self presentModalViewController:mmvc animated:YES];*/
//[mmvc release];
}
- (void)match:(GKMatch *)match player:(NSString *)playerID didChangeState:(GKPlayerConnectionState)state {
switch (state){
case GKPlayerStateConnected:
if (match.expectedPlayerCount == 0) {
// start the match
}
break;
case GKPlayerStateDisconnected:
// remove the player from the match, notify other players, etc
break;
}
}
- (void)matchmakerViewControllerWasCancelled:(GKMatchmakerViewController *)viewController{}
// Matchmaking has failed with an error
- (void)matchmakerViewController:(GKMatchmakerViewController *)viewController didFailWithError:(NSError *)error{
}
// A peer-to-peer match has been found, the game should start
- (void)matchmakerViewController:(GKMatchmakerViewController *)viewController didFindMatch:(GKMatch *)match{
}
// Players have been found for a server-hosted game, the game should start
- (void)matchmakerViewController:(GKMatchmakerViewController *)viewController didFindPlayers:(NSArray *)playerIDs{
}
// An invited player has accepted a hosted invite. Apps should connect through the hosting server and then update the player's connected state (using setConnected:forHostedPlayer:)
- (void)matchmakerViewController:(GKMatchmakerViewController *)viewController didReceiveAcceptFromHostedPlayer:(NSString *)playerID {
}
- (void) sendPosition
{
NSError *error;
NSString* str = #"teststring";
NSData* data = [str dataUsingEncoding:NSUTF8StringEncoding];
// NSData *packet = [NSData dataWithBytes:&msg length:sizeof(PositionPacket)];
[currentMatch sendDataToAllPlayers: data withDataMode: GKMatchSendDataUnreliable error:&error];
if (error != nil)
{
// Handle the erro.r
}
}
But i dont know why but delegate method of GKMatchmakerViewController is not called i had set the delegate but still and even i ama not able to get GKMATCH (here currentMatch).
So due to this
[currentMatch sendDataToAllPlayers: data withDataMode: GKMatchSendDataUnreliable error:&error];
this method is not working.
as CurrentMatch refrence is 0X0.
Please help me out.How do i send and recive data.
M i doing anything wrong?OR is there any thing else to be done.
Please help me.
Thanks
I'm doing an ios app based on maths..
I've done the code for uploading the high score to the Game Center..
but this doesn't work..
it's always showing 0 as the high score..
This is my code...
[[GKLocalPlayer localPlayer]authenticateWithCompletionHandler:^(NSError *error)
{
if (error ==nil)
{
CCLOG(#"Success");
} else
{
CCLOG(#"Fail");
}
}];
.
.
.
.
.
-(void)showLeaderboard
{
if( ! gameCenterViewController_ )
gameCenterViewController_ = [[GameCenterViewController alloc] init];
[gameCenterViewController_ showLeaderboard];
}
-(void)submitMyScore1:(int)score1
{
CCLOG(#"submitMyScore1--%d",score1);
//This is the same category id you set in your itunes connect GameCenter LeaderBoard
GKScore *myScoreValue = [[[GKScore alloc] initWithCategory:#"bigwizlist"] autorelease];
myScoreValue.value = score1;
[myScoreValue reportScoreWithCompletionHandler:^(NSError *error){
if(error != nil)
{
CCLOG(#"Score Submission Failed");
} else
{
CCLOG(#"Score Submitted");
}
}];
}
I think you need to use an int64_t for your method! I use this method and it works perfectly fine :-)
-(void)submitScore:(int64_t)score category:(NSString*)category{
GKScore *gkScore = [[[GKScore alloc]initWithCategory:category]autorelease];
gkScore.value = score;
[gkScore reportScoreWithCompletionHandler:^(NSError* error)
{
[self setLastError:error];
bool sucess = (error == nil);
[delegate onScoresSubmitted:sucess];
}];
}
Greetings
Anselm