将HUDLayer正确链接到GameplayLayer

我试图将GameplayLayer的触摸位置传递给HUDLayer以查看用户是否按下了控制按钮。将HUDLayer正确链接到GameplayLayer

HudLayer.mm

-(void) handleTouchAtLocation:(CGPoint) location { 
NSLog(@"Touch passed to HUD"); 
}

Gameplay.mm

enum { 
    kHudLayer = 2; 
}; 

+(CCScene *) scene { 
    CCScene *scene = [CCScene node]; 
    HudLayer *hud = [HudLayer node]; 
    [scene addChild:hud z:kHudLayer]; 
    GameplayLayer *layer = [GameplayLayer node]; 
    [scene addChild:layer]; 
    return scene; 
} 

-(void) ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { 
    for(UITouch *touch in touches) { 
     CGPoint location = [touch locationInView: [touch view]]; 
     location = [[CCDirector sharedDirector] convertToGL: location]; 
     [self handTouchAtPoint:(location)]; 
    } 
} 

-(void) handleTouchAtPoint:(CGPoint)location { 
    NSLog(@"Touch At Point"); 
    HudLayer *h1 = (HudLayer *)[self.parent getChildWithTag:kHudLayer]; 
    [h1 handleTouchAtLocation:location]; 
}

HudLayer.h在GameplayLayer.h导入。我得到了“触摸点”的日志，但它不会通过对HUD层出于某种原因..

来源

2012-10-08 iamruskie

唯一的解释是，self.parent与标签kHudLayer没有孩子。如果在handleTouchAtPoint中设置了断点，则getChildWithTag行确实执行后，您会注意到h1为零。

来源

2012-10-08 15:06:07 LearnCocos2D

你是对的，它是零。 – iamruskie

取出.parent做了伎俩。我想我有点混在那里。感谢 – iamruskie

你似乎将这个常量用作zOrder，而不是标签。因此，如果它现在“有效”，请注意将来对父对象添加对象的顺序的更改。 – YvesLeBorg

将HUDLayer正确链接到GameplayLayer

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