Question

我正在尝试使用SpriteKit为我的游戏启用游戏中心，在这里使用Ray Wenderlich的教程：http://www.raywenderlich.com/3276/game-center-tutorial-for-ios-how-to-make-a-simple-multiplayer-game-part-12 所以在创建GCHelper.h之后

#import <Foundation/Foundation.h>
#import <GameKit/GameKit.h>

@interface GCHelper : NSObject {
    BOOL gameCenterAvailable;
    BOOL userAuthenticated;
}

@property (assign, readonly) BOOL gameCenterAvailable;

+ (GCHelper *)sharedInstance;
- (void)authenticateLocalUser;

@end

和GCHelper.m

#import "GCHelper.h"

@implementation GCHelper

@synthesize gameCenterAvailable;

#pragma mark Initialization

static GCHelper *sharedHelper = nil;
+ (GCHelper *) sharedInstance {
    if (!sharedHelper) {
        sharedHelper = [[GCHelper alloc] init];
    }
    return sharedHelper;
}

- (BOOL)isGameCenterAvailable {
    // check for presence of GKLocalPlayer API
    Class gcClass = (NSClassFromString(@"GKLocalPlayer"));

    // check if the device is running iOS 4.1 or later
    NSString *reqSysVer = @"4.1";
    NSString *currSysVer = [[UIDevice currentDevice] systemVersion];
    BOOL osVersionSupported = ([currSysVer compare:reqSysVer
                                           options:NSNumericSearch] != NSOrderedAscending);

    return (gcClass && osVersionSupported);
}

- (id)init {
    if ((self = [super init])) {
        gameCenterAvailable = [self isGameCenterAvailable];
        if (gameCenterAvailable) {
            NSNotificationCenter *nc =
            [NSNotificationCenter defaultCenter];
            [nc addObserver:self
                   selector:@selector(authenticationChanged)
                       name:GKPlayerAuthenticationDidChangeNotificationName
                     object:nil];
        }
    }
    return self;
}

- (void)authenticationChanged {

    if ([GKLocalPlayer localPlayer].isAuthenticated && !userAuthenticated) {
        NSLog(@"Authentication changed: player authenticated.");
        userAuthenticated = TRUE;
    } else if (![GKLocalPlayer localPlayer].isAuthenticated && userAuthenticated) {
        NSLog(@"Authentication changed: player not authenticated");
        userAuthenticated = FALSE;
    }

}

- (void)authenticateLocalUser {

    if (!gameCenterAvailable) return;

    NSLog(@"Authenticating local user...");
    if ([GKLocalPlayer localPlayer].authenticated == NO) {
        [[GKLocalPlayer localPlayer] authenticateWithCompletionHandler:nil];
    } else {
        NSLog(@"Already authenticated!");
    }
}

@end

我在didFinishLaunchingWithOptions中将sharedinstance链接到了我的AppDelegate

[GCHelper sharedInstance] authenticateLocalUser];

因此，当游戏启动时我可以使用我的apple id帐户登录，似乎我应该始终从游戏登录GC，当我希望游戏知道我是否已经登录时。第二，当我登录时，我以Sand Box身份登录，这非常令人讨厌，因为当我改变游戏时，在其他游戏中我不使用沙盒帐户。知道什么可以使这个烂摊子？

Answer 1

沙盒帐户似乎正在使用，因为您使用开发人员的配置文件构建您的应用。

为什么游戏中心只适用于沙箱？

1 个答案: