- 本帖最后由 wangjingjing 于 2012-6-20 17:51 编辑 *
写这篇文章的主要用于给自己加强印象，帮助他人就是帮助自己.本教程基于cocos2d-x 13版本编写 主要内容是告诉大家在c++中如何添加 game center ，找了很多网络上面的代码基本上都是缺胳膊少腿的，代码不完整，对于初学者来说是痛苦的。本代码仅提供如何登陆GameCenter 显示和关闭Leaderboard(排行榜)。其他实现请参考子龙山人的博客，顺便贴下地址http://www.cnblogs.com/zilongshanren/archive/2011/06/24/2088383.html 他讲解了很多东西。如何激活GameCenter等值得学习的文章。写的很细致哦废话不说上贴上代码咯我这里主要如何使用UIViewController 来实现GameCenter的呈现
//
// GameKitHelper.h
// toDefendTheEarth
//
// Created by jingjing on 12-6-7.
// Copyright (c) 2012年 __MyCompanyName__. All rights reserved.
//
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#import <GameKit/GameKit.h>
@interface GameKitHelper : NSObject <GKLeaderboardViewControllerDelegate, GKAchievementViewControllerDelegate, GKMatchmakerViewControllerDelegate, GKMatchDelegate>{
BOOL gameCenterAvailable;
BOOL userAuthenticated;
}
@property (assign, readonly) BOOL gameCenterAvailable;
+ (GameKitHelper *)sharedGameKitHelper;
- (void) authenticateLocalUser;
- (void) showLeaderboard;
- (void)leaderboardViewControllerDidFinish:(GKLeaderboardViewController *)viewController;
@end
这是实现
//
// GameKitHelper.m
// toDefendTheEarth
//
// Created by jingjing on 12-6-7.
// Copyright (c) 2012年 __MyCompanyName__. All rights reserved.
//
#import "GameKitHelper.h"
@implementation GameKitHelper
@synthesize gameCenterAvailable;
//静态初始化 对外接口
static GameKitHelper *sharedHelper = nil;
static UIViewController* currentModalViewController = nil;
+ (GameKitHelper *) sharedGameKitHelper {
if (!sharedHelper) {
sharedHelper = init];
}
return sharedHelper;
}
//用于验证
- (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 = systemVersion];
BOOL osVersionSupported = ([currSysVer compare:reqSysVer
options:NSNumericSearch] != NSOrderedAscending);
return (gcClass && osVersionSupported);
}
- (id)init {
if ((self = )) {
gameCenterAvailable = ;
if (gameCenterAvailable) {
NSNotificationCenter *nc =
;
[nc addObserver:self
selector:@selector(authenticationChanged)
name:GKPlayerAuthenticationDidChangeNotificationName
object:nil];
}
}
return self;
}
//后台回调登陆验证
- (void)authenticationChanged {
if (.isAuthenticated &&!userAuthenticated) {
NSLog(@"Authentication changed: player authenticated.");
userAuthenticated = TRUE;
} else if (!.isAuthenticated && userAuthenticated) {
NSLog(@"Authentication changed: player not authenticated");
userAuthenticated = FALSE;
}
}
- (void)authenticateLocalUser {
if (!gameCenterAvailable) return;
NSLog(@"Authenticating local user...");
if (.authenticated == NO) {
authenticateWithCompletionHandler:nil];
} else {
NSLog(@"Already authenticated!");
}
}
//显示排行榜
- (void) showLeaderboard
{
if (!gameCenterAvailable) return;
GKLeaderboardViewController *leaderboardController = init];
if (leaderboardController != nil) {
leaderboardController.leaderboardDelegate = self;
UIWindow *window = keyWindow];
currentModalViewController = init];
;
;
}
}
//关闭排行榜回调
- (void)leaderboardViewControllerDidFinish:(GKLeaderboardViewController *)viewController{
if(currentModalViewController !=nil){
;
;
;
currentModalViewController = nil;
}
}
好了。这个来说下如何调用它们吧。先把AppDelegate.cpp 后缀修改为mm在AppDelegate.mm里引入
#import "GameKitHelper.h"
在 applicationDidFinishLaunching方法里调用，代码写在运行场景之前即可
//GameCenter登陆
authenticateLocalUser];
到此登陆就ok啦。后面来教大家如何显示排行榜界面
//显示排行榜
showLeaderboard];
只要把此代码写在你想要调用的方法中就可以了。别忘记了在调用类中引用头文件哦。。忘记说了。更新一下。。这里需要添加一个 GmaeKit.framework的框架引用。
over
