I created a little app just to test out Game center i sign in i am able to increase the score but when i look at the leader board nothing is there
here is my code
- (IBAction)increaseScore:(id)sender {
currentScore+=4;
scoreLabel.text=[NSString stringWithFormat:#"%i",currentScore];
}
- (IBAction)showLeaderBoard:(id)sender {
GKLeaderboardViewController *leaderBoardController = [[GKLeaderboardViewController alloc]init];
leaderBoardController.category=#"1";
leaderBoardController.timeScope=GKLeaderboardTimeScopeAllTime;
leaderBoardController.leaderboardDelegate=self;
[self presentModalViewController:leaderBoardController animated:YES];
}
- (void)leaderboardViewControllerDidFinish:(GKLeaderboardViewController *)viewController
{
[self dismissModalViewControllerAnimated:YES];
}
- (IBAction)sumbitScore:(id)sender {
GKScore *scoreReporter = [[GKScore alloc]initWithCategory:#"1"];
//#"1" is the leaderboard ID
scoreReporter.value=currentScore;
[scoreReporter reportScoreWithCompletionHandler:^(NSError *error) {
if (error) {
NSLog(#"submit failed");
}else{
NSLog(#"access granted");
}
}];
}
GameCenter will only show the leaderboard scores when there are two or more players on the leaderboard.
You will need a score submitted by another GameCenter account. You could sign up for a second Apple Id to be able to send in scores from a 'second' player.
Related
So I have an App that has a Game A and Game B.
I have Game Centre implemented correctly for Game A (I used the AppCoda tutorial like I have for every game so far).
Now I'm having troubles getting it to submit the score if Game B is played. I need to the score to be submitted to the second leaderboard created in iTunes Connect.
This is my part of my ViewController that authenticates the User and uses the identifier for the leaderboard etc.
ViewController.h:
-(void)authenticateLocalPlayer{
GKLocalPlayer *localPlayer = [GKLocalPlayer localPlayer];
localPlayer.authenticateHandler = ^(UIViewController *viewController, NSError *error){
if (viewController != nil) {
[self presentViewController:viewController animated:YES completion:nil];
}
else{
if ([GKLocalPlayer localPlayer].authenticated) {
_gameCenterEnabled = YES; //added bool indentier to .h
// Get the default leaderboard identifier.
[[GKLocalPlayer localPlayer] loadDefaultLeaderboardIdentifierWithCompletionHandler:^(NSString *leaderboardIdentifier, NSError *error) {
if (error != nil) {
NSLog(#"%#", [error localizedDescription]);
}
else{
_leaderboardIdentifier = leaderboardIdentifier; //added pointer to NSString to .h
}
}];
}
else{
_gameCenterEnabled = NO;
}
}
};
}
Seems my Game B View Controller is scorings/submitting just like Game A, I figured I could just change the above code to this:(to allow for the second identifier):
-(void)authenticateLocalPlayer{
GKLocalPlayer *localPlayer = [GKLocalPlayer localPlayer];
localPlayer.authenticateHandler = ^(UIViewController *viewController, NSError *error){
if (viewController != nil) {
[self presentViewController:viewController animated:YES completion:nil];
}
else{
if ([GKLocalPlayer localPlayer].authenticated) {
_gameCenterEnabled = YES; //added bool indentier to .h
_gameCenterEnabled2 = YES;
// Get the default leaderboard identifier.
[[GKLocalPlayer localPlayer] loadDefaultLeaderboardIdentifierWithCompletionHandler:^(NSString *leaderboardIdentifier, NSError *error) {
if (error != nil) {
NSLog(#"%#", [error localizedDescription]);
}
else{
_leaderboardIdentifier = leaderboardIdentifier; //added pointer to NSString to .h
}
}];
// Get the second leaderboard identifier.
[[GKLocalPlayer localPlayer] loadDefaultLeaderboardIdentifierWithCompletionHandler:^(NSString *leaderboardIdentifier2, NSError *error) {
if (error != nil) {
NSLog(#"%#", [error localizedDescription]);
}
else{
_leaderboardIdentifier2 = leaderboardIdentifier2; //added pointer to NSString to .h
}
}];
}
else{
_gameCenterEnabled = NO;
_gameCenterEnabled2 = NO;
}
}
};
}
But for some reason, it won't send the score to the second leaderboard and I can't find any resources/tutorials on how to submit a score to a "non-default" leaderboard...
Ok, so I re-read the Apple Doc and found the solution.
Obviously there can only be ONE default leaderboard (which is authenticated and set in the code in my question)... This doesn't need changing like I originally thought. (I forgot it was used to set the default board).
So what I needed to do was set the Leaderboard identifier to the second leaderboard's identifier (this will be whatever ID you used in iTunes Connect when making the second leaderboard).
I did it in the Game B View Controller when reporting a score like this:
-(void)reportScore{
//set identifier manually as it's not the default leaderboard
GKScore *score = [[GKScore alloc] initWithLeaderboardIdentifier:#"The_GameB_Leaderboard"];
//GKScore *score = [[GKScore alloc] initWithLeaderboardIdentifier:_leaderboardIdentifier2];
score.value = ScoreNumber_B; //Game B HighScore
[GKScore reportScores:#[score] withCompletionHandler:^(NSError *error) {
if (error != nil) {
NSLog(#"%#", [error localizedDescription]);
}
}];
NSLog(#"Reported to Game Center...");
}
There's no need to change the -(void)authenticateLocalPlayer method unless you need to add the GameB bool like I did, in which case you can add it below the GameA Bool:
if ([GKLocalPlayer localPlayer].authenticated) {
_gameCenterEnabled = YES; //added bool indentier to .h
_gameCenterEnabled2 = YES; //GameB bool
.
.
.
}
I hope this helps.
I released my app yesterday and few units were sold so far. But I figured out that the leaderboard doesn't work properly. I can only see my own score when I'm done with my game. Is there some kind of delay until the leaderboard is updated or is it a problem on my implementation? I'd really appreciate if I have my implementation checked by someone who knows how to do it properly. On a side note, I already configured my leaderboard on itunes-connect and enabled it as well. I'm not sure if GKLocalPlayer's instance method loadDefaultLeaderboardIdentifierWithCompletionHandler:^(NSString *leaderboardIdentifier, NSError *error) is the right method to use to load the correct leaderboardID. Do I manually have to declare my leaderboard ID on Xcode somewhere with the leaderboardID I created on itunes-connect? because I find it odd that I never get to use it on the actual implementation... I want this error fixed as soon as possible and I need you guys' help. Thanks.
(void)authenticateLocalPlayer {
GKLocalPlayer *localPlayer = [GKLocalPlayer localPlayer];
localPlayer.authenticateHandler = ^(UIViewController *viewController, NSError *error){
if (viewController != nil) {
[self presentViewController:viewController animated:YES completion:nil];
}
else{
if ([GKLocalPlayer localPlayer].authenticated) {
_gameCenterEnabled = YES;
NSLog(#"authenticated");
// Get the default leaderboard identifier.
[[GKLocalPlayer localPlayer] loadDefaultLeaderboardIdentifierWithCompletionHandler:^(NSString *leaderboardIdentifier, NSError *error) {
if (error != nil) {
NSLog(#"here");
NSLog(#"%#", [error description]);
}
else{
_leaderboardIdentifier = leaderboardIdentifier;
}
}];
}
else{
_gameCenterEnabled = NO;
}
}
};
}
- (void)reportScore:(NSNotification *) notification {
if (_gameCenterEnabled) {
NSDictionary *userInfo = notification.userInfo;
NSNumber *score = [userInfo objectForKey:#"highestScore"];
GKScore *gkscore = [[GKScore alloc]initWithLeaderboardIdentifier:_leaderboardIdentifier];
gkscore.value = [score integerValue];
[GKScore reportScores:#[gkscore] withCompletionHandler:^(NSError *error) {
if (error != nil) {
NSLog(#"%#", [error localizedDescription]);
}
}];
}
}
- (void)showLeaderboard{
GKGameCenterViewController *gcViewController = [[GKGameCenterViewController alloc] init];
gcViewController.gameCenterDelegate = self;
gcViewController.viewState = GKGameCenterViewControllerStateLeaderboards;
gcViewController.leaderboardIdentifier = _leaderboardIdentifier;
[self presentViewController:gcViewController animated:YES completion:nil];
}
- (void)gameCenterViewControllerDidFinish:(GKGameCenterViewController *)gameCenterViewController
{
[gameCenterViewController dismissViewControllerAnimated:YES completion:nil];
}
I am making a game in which the player can achieve a positive high score or a negative low score depending on the choices they make. The code that I've been using works great if there is only one leaderboard, but I'm having trouble when I try to add the second. TEHS is the leaderboard identifier for HighScore and TELS is the leaderboard identifier for LowScore.
I authenticate the local player:
-(void)authenticateLocalPlayer{
GKLocalPlayer *localPlayer = [GKLocalPlayer localPlayer];
localPlayer.authenticateHandler = ^(UIViewController *viewController, NSError *error){
if (viewController != nil) {
[self presentViewController:viewController animated:YES completion:nil];
}
else{
if ([GKLocalPlayer localPlayer].authenticated) {
_gameCenterEnabled = YES;
// Get the default leaderboard identifier.
[[GKLocalPlayer localPlayer] loadDefaultLeaderboardIdentifierWithCompletionHandler:^(NSString *leaderboardIdentifier, NSError *error) {
if (error != nil) {
NSLog(#"%#", [error localizedDescription]);
}
else{
TEHS = leaderboardidentifier;
}
}];
}
else{
_gameCenterEnabled = NO;
}
}
};
}
Scores are reported:
-(void)reportHighScore{
GKScore *highscore = [[GKScore alloc] initWithLeaderboardIdentifier:TEHS];
highscore.value = HighScoreNumber;
[GKScore reportScores:#[highscore] withCompletionHandler:^(NSError *error) {
if (error != nil) {
NSLog(#"%#", [error localizedDescription]);
}
}];
}
-(void)reportLowScore {
GKScore *lowscore = [[GKScore alloc] initWithLeaderboardIdentifier:TELS];
lowscore.value = LowScoreNumber;
[GKScore reportScores:#[lowscore] withCompletionHandler:^(NSError *error) {
if (error != nil) {
NSLog(#"%#", [error localizedDescription]);
}
}];
}
And, the leaderboards are shown when the player activates:
-(void)showLeaderboardAndAchievements:(BOOL)shouldShowLeaderboard{
GKGameCenterViewController *gcViewController = [[GKGameCenterViewController alloc] init];
gcViewController.gameCenterDelegate = self;
if (shouldShowLeaderboard) {
gcViewController.viewState = GKGameCenterViewControllerStateLeaderboards;
gcViewController.leaderboardIdentifier = TEHS;
}
else{
gcViewController.viewState = GKGameCenterViewControllerStateAchievements;
}
[self presentViewController:gcViewController animated:YES completion:nil];
}
Either reportLowScore or reportHighScore will work when I change
gcViewController.leaderboardIdentifier = TEHS;
and
TEHS = leaderboardidentifier;
to match their respective identifier. So, right now, this code works for High Score (TEHS), and if I changed the above two to TELS, Low Score would work. I'm just not quite sure what I need to do to authenticateLocalPlayer and showLeaderboardAndAchievements to get both leaderboards to work.
I have a game on the App Store that has two leaderboards, one for points and one for levels cleared. Instead of having one method for each leaderboard I made one method for submitting scores. Here is that method:
-(void) submitScore:(int64_t)score Leaderboard: (NSString*)leaderboard
{
//1: Check if Game Center
// features are enabled
if (!_gameCenterFeaturesEnabled) {
return;
}
//2: Create a GKScore object
GKScore* gkScore =
[[GKScore alloc]
initWithLeaderboardIdentifier:leaderboard];
//3: Set the score value
gkScore.value = score;
//4: Send the score to Game Center
[gkScore reportScoreWithCompletionHandler:
^(NSError* error) {
[self setLastError:error];
BOOL success = (error == nil);
if ([_delegate
respondsToSelector:
#selector(onScoresSubmitted:)]) {
[_delegate onScoresSubmitted:success];
}
}];
}
When you want to submit your high scores all you have to do is add something like:
[[GCHelper sharedGameKitHelper] submitScore:myLowScore Leaderboard:TELS];
[[GCHelper sharedGameKitHelper] submitScore:myHighScore Leaderboard:TEHS];
GCHelper is the class that contains my submitScore:Leaderboard: method.
To view your leaderboards or achievements within your app try this:
- (void) presentLeaderboards {
GKGameCenterViewController* gameCenterController = [[GKGameCenterViewController alloc] init];
gameCenterController.viewState = GKGameCenterViewControllerStateLeaderboards;
gameCenterController.gameCenterDelegate = self;
[self presentViewController:gameCenterController animated:YES completion:nil];
}
- (void) gameCenterViewControllerDidFinish:(GKGameCenterViewController*) gameCenterViewController {
[self dismissViewControllerAnimated:YES completion:nil];
}
- (void) presentAchievements {
GKGameCenterViewController* gameCenterController = [[GKGameCenterViewController alloc] init];
gameCenterController.viewState = GKGameCenterViewControllerStateAchievements;
gameCenterController.gameCenterDelegate = self;
I hope this answers your question!
The Game Center tutorial I was following showed me everything except how to report the scores and achievements to the leaderboards.
This is the score part:
+ (void)reportScore:(Float64) score forIdentifier: (NSString*) identifier {
GKScore* highScore = [[GKScore alloc] initWithLeaderboardIdentifier:#"Tap_Competition_LB"];
highScore.value = score;
[GKScore reportScores:#[highScore] withCompletionHandler:^(NSError *error) {
if (error) {
NSLog(#"Error in reporting scores: %#", error);
}
}];
}
and this is the achievement part:
+ (void) reportAchievementIdentifier: (NSString*) identifier percentComplete: (float) percent
{
GKAchievement *achievement = [[GKAchievement alloc] initWithIdentifier: identifier];
if (achievement)
{
achievement.percentComplete = percent;
achievement.showsCompletionBanner = YES;
if (![[NSUserDefaults standardUserDefaults] boolForKey:identifier]) {
//Tell analytics if you want to
}
NSArray *achievements = #[achievement];
[GKAchievement reportAchievements:achievements withCompletionHandler:^(NSError *error) {
if (error != nil) {
NSLog(#"Error in reporting achievements: %#", error);
} else {
[[NSUserDefaults standardUserDefaults] setBool:YES forKey:identifier];
[[NSUserDefaults standardUserDefaults] synchronize];
}
}];
}
}
Which are both located in the TCUser file I've created, after the authentication of the local user.
The tutorial I was following gave this line of code for reporting:
[SingletonClassName reportAchievementIdentifier:#"com.companyname.gamename.achievementname" percentComplete:100.0f];
But I don't understand which singleton class to reference. Can anyone help me out and show me how exactly to report a score or achievement?
The Apple documentation didn't help either.
PS This was the tutorial: http://www.raywenderlich.com/forums/viewtopic.php?f=2&t=10844
Im Developing a new app that uses game center, but unfortunatley im having troubles with game center authentication
here is the authentication code im using:
#interface ViewController ()
// A flag indicating whether the Game Center features can be used after a user has been authenticated.
#property (nonatomic) BOOL gameCenterEnabled;
// This property stores the default leaderboard's identifier.
#property (nonatomic, strong) NSString *leaderboardIdentifier;
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self authenticateLocalPlayer];
_gameCenterEnabled = NO;
_leaderboardIdentifier = #"LEADERBOARD ID HERE";
}
- (void)authenticateLocalPlayer {
GKLocalPlayer *localPlayer = [GKLocalPlayer localPlayer];
localPlayer.authenticateHandler = ^(UIViewController *viewController, NSError *error){
if (viewController != nil) {
[self presentViewController:viewController animated:YES completion:nil];
}
else{
if ([GKLocalPlayer localPlayer].authenticated) {
_gameCenterEnabled = YES;
[[GKLocalPlayer localPlayer] loadDefaultLeaderboardIdentifierWithCompletionHandler:^(NSString *leaderboardIdentifier, NSError *error) {
if (error != nil) {
NSLog(#"%#", [error localizedDescription]);
}
else{
_leaderboardIdentifier = leaderboardIdentifier;
}
}];
}
else {
_gameCenterEnabled = NO;
NSLog(#"Game Center Not available");
}
}
};
}
i double checked the app id, the leaderboard identifier and i have game center enabled in itunes connect,i also linked gamekit framework,and imported gamekit in View Controller.h, and i have sandbox mode enabled in game center
im using Xcode 5.0.2 on OS X Mavericks
Could Someone please Help? Its Making me CRAZYY!!
Regards :)
You can use that, I create a simple class for iOS game center in github
Easy Game Center Swift
https://github.com/DaRkD0G/Easy-Game-Center-Swift
For anyone else facing this issue, you need to enable the Game Center capability.