Question

我创建了一个自定义类LevelScoreCard：CCNode，它有一些CCMenuItemImages。

以下是界面和实施细节

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

@interface LevelScoreCard : CCNode {
    @private CCSprite *levelScoreBackGround;
    @private   CGSize winSize;
}
-(id)initForLevelNo:(int)levelNo withWiningStatus:(BOOL)won;

@end

和

#import "LevelScoreCard.h"
#import "TestLayer3.h"

@implementation LevelScoreCard

-(id)initForLevelNo:(int)levelNo withWiningStatus:(BOOL)won
{

    if( (self=[super init]) ) {

        winSize=[CCDirector sharedDirector].winSize;

        //Adding the BackGround
        levelScoreBackGround=[CCSprite spriteWithFile:@"levelScoreBackGround.png"];
        self.contentSize=levelScoreBackGround.contentSize;
        [self addChild:levelScoreBackGround ];

        //Adding the Game Level-Wining Status
        CCSprite *winingStatus;
        if (won) {
            winingStatus=[CCSprite spriteWithFile:@"levelCompleted.png"];
        }
        else{
            winingStatus=[CCSprite spriteWithFile:@"levelFailed.png"];
            CCSprite *skull=[CCSprite spriteWithFile:@"skull.png"];
            skull.position=ccp(0,-self.contentSize.height*0.07);
            [self addChild:skull];
        }
        winingStatus.position=ccp(0,self.contentSize.height*0.32);
        [self addChild:winingStatus];

        CCMenuItem *homeButton = [CCMenuItemImage itemWithNormalImage:@"home1.png"
                                                    selectedImage:@"home1.png"
                                                            block:^(id sender) {
                                                                printf("\nHome button clicked");
                                                            }];

        CCMenuItem *replayButton = [CCMenuItemImage itemWithNormalImage:@"replay.png"
                                                    selectedImage:@"replay.png"
                                                            block:^(id sender) {
                                                                printf("\nReplay button clicked");
                                                         }];
        CCMenuItem *nextButton;
        CCMenu *menu;

        NSDictionary *nextLevelInfo=[self gameInformationForLevel:levelNo+1];

        //Create a menu from the button and center it on the screen
        if (![[nextLevelInfo objectForKey:@"isLocked"] intValue]) {
            nextButton = [CCMenuItemImage itemWithNormalImage:@"next.png"
                                                            selectedImage:@"next.png"
                                                                    block:^(id sender) {

                                                                        printf("\nNext button clicked");
                                                                    }];
            menu = [CCMenu menuWithItems:homeButton, replayButton,nextButton, nil];
            [menu alignItemsHorizontallyWithPadding:60];
        }
        else
        {
            menu = [CCMenu menuWithItems:homeButton, replayButton, nil];
            [menu alignItemsHorizontallyWithPadding:20];
        }

        menu.position = ccp(0,-self.contentSize.height*0.35);

        //Add the menu as a child to this layer
        [self addChild:menu];            
    }
    return self;
}

-(NSDictionary*)gameInformationForLevel:(int)levelNo
{
    //---Retrieving Information About Levels----
    NSMutableDictionary *gameInfo=[[NSUserDefaults standardUserDefaults] objectForKey:@"gameInfo"];
    NSString *levelKey=[NSString stringWithFormat:@"level%dInfo",levelNo];

    return [[gameInfo objectForKey:levelKey] copy];
}
@end

当我使用直接从IntroLayer加载的简单CCLayer中的 LevelScoreCard时，与MenuItems相关联的块工作正常。

但是当我在另一个CCLayer 中使用它时，它是从第二个CCLayer有条件加载的，具有以下代码的StartLayer，MenuItems没有响应

    -(void)loadLevelAfterDelay:(ccTime)dt
    {

        #warning  Game has 4 levels, implement game layer 2,3,4 after fixing the story
        switch (levelSelected) {
            case 1:
            {
                [[CCDirector sharedDirector] replaceScene:[CCTransitionFade transitionWithDuration:0.50 scene:[Level1 scene] ]];
                break;
            }
            case 2:
            {
                [[CCDirector sharedDirector] replaceScene:[CCTransitionFade transitionWithDuration:0.50 scene:[TestLayer2 scene] ]];
                break;
            }
            case 3:
            {

                [[CCDirector sharedDirector] replaceScene:[CCTransitionFade transitionWithDuration:0.50 scene:[Level1 scene] ]];
                break;
            }
            case 4:
            {
                [[CCDirector sharedDirector] replaceScene:[CCTransitionFade transitionWithDuration:0.50 scene:[Level1 scene] ]];
                break;
            }


            default:
                break;
        }
}

Answer 1

问题是前一层StartLayer：CCLayer有一个SettingsMenu：CCNode，它已注册到touchDispatcher

[[CCDirector sharedDirector].touchDispatcher addTargetedDelegate:self priority:INT_MIN+2 swallowsTouches:YES];

这是在将它们交付给CCMenuItemImages之前吞下触摸的罪魁祸首。因此，我学到了一个很好的教训，即从未注册任何可以吞下触摸的CCNode类型项目。使用以下代码注册touchDispatcher时，不要吞下触摸是个好习惯

[[CCDirector sharedDirector].touchDispatcher addTargetedDelegate:self priority:INT_MIN+2 swallowsTouches:NO];

在CCNode自定义类中使用时，CCMenuItemImage没有响应

1 个答案: