How to implement a leaderboard (Game Center) into project

How to implement a leaderboard (Game Center) into project

By : Roman Kinyakin
Date : November 14 2020, 04:51 PM
Hope that helps If you've actually looked this up, you will find loads of tutorials on this so I don't think you have, or you haven't really learned how to use xCode.
Here's how I'd do the code:
code :
    -(void)submitScore //submit the score to game centre
        GKScore *score = [[GKScore alloc] initWithLeaderboardIdentifier:@"LeaderboardName"]; 
        int64_t GameCenterScore = Score;
        score.value = GameCenterScore;

        [GKScore reportScores:@[score] withCompletionHandler:^(NSError *error) {
            if (error != nil) {
                NSLog(@"%@", [error localizedDescription]);

-(void)authentication //log player into game centre
    GKLocalPlayer *localPlayer = [GKLocalPlayer localPlayer];

    localPlayer.authenticateHandler = ^(UIViewController *viewController, NSError *error){
        if (viewController != nil) {
            [self presentViewController:viewController animated:YES completion:nil];
            if ([GKLocalPlayer localPlayer].authenticated) {
                NSLog(@"authentication succcesful");
                GameCenterAvaliable = YES;
                [[GKLocalPlayer localPlayer] loadDefaultLeaderboardIdentifierWithCompletionHandler:^(NSString *leaderboardIdentifier, NSError *error) {

                    if (error != nil) {
                        NSLog(@"%@", [error localizedDescription]);
                        leaderboardIdentifier = leaderboardIdentifier;

                NSLog(@"authentication unseuccseful");
                GameCenterAvaliable = NO;

-(IBAction)ShowGameCenter:(id)sender //show game centre
    GKLeaderboardViewController *LeaderboardController = [[GKLeaderboardViewController alloc] init];
    if (LeaderboardController != nil) {
        LeaderboardController.leaderboardDelegate = self;
        [self presentViewController:LeaderboardController animated:YES];

//Animate gc out if finished with it

-(void)leaderboardViewControllerDidFinish: (GKLeaderboardViewController *) viewController{
    [self dismissViewControllerAnimated:YES];

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game center leaderboard integration with cocos2d game

game center leaderboard integration with cocos2d game

By : kiwifruit
Date : March 29 2020, 07:55 AM
Hope this helps I believe this is by design:
How to update score in Game Center leaderboard even if it's lower game center

How to update score in Game Center leaderboard even if it's lower game center

By : Bruce.Chan
Date : March 29 2020, 07:55 AM
wish helps you No. The scores stored for each leaderboard are the highest scores ever reported. When a score is reported that is lower than the value already stored it is ignored.
There is a context field in the GKScore object that you might store the amount of gold in but it will only be saved by Game Center when the score is higher than the previous high, so probably not what you're looking for.
Implement a Game Center leaderboard (iOS 7)

Implement a Game Center leaderboard (iOS 7)

By : Dominik
Date : March 29 2020, 07:55 AM
should help you out To create the necessary code for a leaderboard see here: Game Center in IOS 7 leaderboard
To authenticate the user you need this code:
code :
[[GCHelper sharedGameKitHelper] authenticateLocalPlayer];
How to Implement Game Center Leaderboard ID in swift

How to Implement Game Center Leaderboard ID in swift

By : user3283622
Date : March 29 2020, 07:55 AM
like below fixes the issue You can choose arbitrary (unique) strings as leaderboard IDs and assign them in iTunes Connect. Mine look like this: leaderboard.identifier = "com.domain.app.leaderboard".
Game Center Leaderboard not appearing on production version of game?

Game Center Leaderboard not appearing on production version of game?

By : Emre Y.
Date : March 29 2020, 07:55 AM
I hope this helps you . I'm not sure if this section existed before. But I needed to explicitly add my created leaderboards to my release.
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