ios - Cocos2D 在 -(id) 初始化时崩溃

Question

我有 1 个包含两层的场景。一个名为 BackgroundLayer，另一个名为 GameplayLayer。背景层看起来像这样:

-(id) init{
self = [super init];
if(self != nil){
    CCSprite * backgroundImage;
    if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad){
        backgroundImage = [CCSprite spriteWithFile:@"backgroundr.png"];

    }
    else{
        backgroundImage = [CCSprite spriteWithFile:@"background.png"];
    }

    CGSize screenSize = [[CCDirector sharedDirector] winSize];
    [backgroundImage setPosition:CGPointMake(screenSize.width/2, screenSize.height/2)];
    [self addChild:backgroundImage];

}
return self;}

效果很好。但问题是，GameplayLayer 会导致游戏崩溃。GameplayLayer 看起来像这样:

-(id) init{
    self = [self init];
   if( self != nil){

        }

    return self;
}

另外游戏场景是这样的:

-(id) init{
self = [super init];
if(self != nil){
    BackgroundLayer * backgroundLayer = [BackgroundLayer node];
    [self addChild:backgroundLayer z:0];

    GameplayLayer * gameplayLayer = [GameplayLayer node];
    [self addChild:gameplayLayer z:5];

}
return self;

我真的没有看到这里的问题。但是，如果我删除 -(id) init，它就不会崩溃。
有什么想法吗？
以下是日志的最后几行:

    2013-03-12 00:41:41.371 CocoTest[3574:c07] cocos2d: **** WARNING **** CC_ENABLE_GL_STATE_CACHE is disabled. To improve performance, enable it by editing ccConfig.h

2013-03-12 00:41:41.371 CocoTest[3574:c07] cocos2d: cocos2d v2.0.0
2013-03-12 00:41:41.371 CocoTest[3574:c07] cocos2d: Using Director Type:CCDirectorDisplayLink

Answer 1

GameplayLayer 中的

self = [self init]; 将永远递归。应该是 self = [super init];