Cococ2d中HudLayer的分数更新

Question

问题：我的HudLayer中的分数没有得到更新。我在GameLayer中包含了HudLayer并更新了分数但分数没有得到更新..

HudLayer在我运行我的应用程序时显示，但在更新分数时，方法未在HudLayer中调用。

让我告诉你的情况，在GameLayer我有两个项目，一个是Pick the Coint，另一个是Bump to wall，当我点击item1时，我将我的分数增加1，当我点击item2时我是递减1.它只是简单的演示程序。

//  GameLayer.m
//  MyScene
//
//  Created by Vaibhav on 1/21/13.
//  Copyright 2013 __MyCompanyName__. All rights reserved.
//

#import "GameLayer.h"
#include "IntroLayer.h"
#include "HelloWorldLayer.h"
#include "HudLayer.h"

@implementation GameLayer
@synthesize hud;


+(CCScene *) scene
{
    // 'scene' is an autorelease object.
    CCScene *scene = [CCScene node];

    // 'layer' is an autorelease object.
    GameLayer *layer = [GameLayer node];

    HudLayer *anotherLayer= [HudLayer node];

    layer.hud=anotherLayer;

    // add layer as a child to scene
    [scene addChild: layer];
    [scene addChild:anotherLayer];
    // return the scene
    return scene;
}



-(void)goToLoadScene
{

    [[CCDirector sharedDirector]replaceScene:[ HelloWorldLayer node]];
}

-(void)pick
{
    [hud  addToScore:2]; 


}

-(void)wall
{

  [hud addToScore:-1];
    [hud hello];



}
-(id) init
{
    if( (self=[super initWithColor:ccc4(0, 0,255,255)])) {


        CCMenuItem *item1=[CCMenuItemFont itemFromString:@"End Game" target:self selector:@selector(goToLoadScene)];

        item1.position=ccp(120, -120);

        CCMenuItem *item2=[CCMenuItemFont itemFromString:@"Pick the Coin" target:self selector:@selector(pick)];
        item2.position=ccp(0, 20);

        CCMenuItem *item3=[CCMenuItemFont itemFromString:@"Bump to wall" target:self selector:@selector(wall)];

        item3.position=ccp(0, -20);

        CCMenu *menu=[CCMenu menuWithItems:item1,item2,item3, nil];

        [self addChild:menu];
       [self addChild:[HudLayer node]];



    }

    return self;
}



@end

//
//  GameLayer.h
//  MyScene
//
//  Created by Vaibhav on 1/21/13.
//  Copyright 2013 __MyCompanyName__. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "cocos2d.h"
#import "HudLayer.h"

@interface GameLayer : CCLayerColor {

    HudLayer *hud ;
    int score;

}
@property(nonatomic,retain) HudLayer *hud;




+(CCScene *) scene;
@end



//
//  HudLayer.m
//  MyScene
//
//  Created by Vaibhav on 1/23/13.
//  Copyright 2013 __MyCompanyName__. All rights reserved.
//

#import "HudLayer.h"


@implementation HudLayer


-(id) init
{
    // always call "super" init
    // Apple recommends to re-assign "self" with the "super's" return value

    if( (self=[super initWithColor:ccc4(255,255, 0,128)]) ) {

        NSLog(@"I am here");     
        self.position=ccp(0,280);
        self.contentSize=CGSizeMake(480, 40);

        scoreLabel=[CCLabelTTF labelWithString:@"0" fontName:@"Marker Felt" fontSize:24];
        scoreLabel.position=ccp(62, 20);
        scoreLabel.anchorPoint=ccp(0, 0.5);
        [self addChild:scoreLabel];

        CCLabelTTF *score1=[CCLabelTTF labelWithString:@"Score" fontName:@"Marker Felt" fontSize:24];
        score1.position=ccp(5, 20);
        score1.anchorPoint=ccp(0, 0.5);
        [self addChild:score1];
       // [self addToScore:2];

    }
    return self;
}

-(void)hello 
{
    NSLog(@"hello ");
}

-(void)addToScore:(int)number
{
    score=score+number;
    [scoreLabel setString:[NSString stringWithFormat:@"%d ",score]];

}


@end

//
//  HudLayer.h
//  MyScene
//
//  Created by Vaibhav on 1/23/13.
//  Copyright 2013 __MyCompanyName__. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "cocos2d.h"

@interface HudLayer : CCLayerColor {

    CCLabelTTF *scoreLabel;
    int score;



}


-(void)addToScore:(int)number;
-(void)hello;
@end