重写cocos2d-x（c ++）上的代码cocos2d（objective-c） [英] rewrite the code cocos2d (objective-c) on cocos2d-x (c++)

问题描述

现在将代码从cocos2d（objective-c）重写为cocos2d-x（c ++），并碰到一个问题：
我有两个类，两个CCLayer。在一个类中有CCMenu通过按下按钮调用第二个类：

  CCMenuItem * button = [CCMenuItemImage itemWithNormalImage：@ pngselectedImage：nil block：^（id sender）{
 
 HelloWorldLayer * helloWorldLayer =（HelloWorldLayer *）[self.parent getChildByTag：777]; 
 [helloWorldLayer createSprite：self]; 
}]; 
  

在二年级，我分配图层标签：

self.tag = 777;

和那个方法：

   - （void）createSprite：（id）sender {
 ..} 
  

如何在C ++中重写这段代码？））

解决方案

让类中的菜单是类A

  CCMenuItem * button = CCMenuItemImage :: create正常，选择，禁用，menu_selector（A :: Method））; 
  

方法

  void A :: Method（CCObject * pSender）{
 HelloWorldLayer * helloWorldLayer =（HelloWorldLayer *）this-> parent-> getChildByTag（777）; 
 helloWorldLayer-> createSprite（this）; 
} 
  

Now rewrite the code from cocos2d (objective-c) to cocos2d-x (c + +) and collided with a problem: I have two classes, two CCLayer. In one class there CCMenu by pressing the button calls the second class:

CCMenuItem * button = [CCMenuItemImage itemWithNormalImage: @ "1.png" selectedImage: nil block: ^ (id sender) {
             
              HelloWorldLayer * helloWorldLayer = (HelloWorldLayer *) [self.parent getChildByTag: 777];
              [helloWorldLayer createSprite: self];
          }];

And in the second grade, I assign Layer tag:

         self.tag = 777;

and that method:

  - (void) createSprite: (id) sender {
..}

How to rewrite this code in C + +?))

解决方案

It is simple.

Let class in which menu is Class- A

CCMenuItem * button=CCMenuItemImage::create("normal", "selected", "disable", menu_selector(A::Method));

The Method is

void A::Method(CCObject *pSender){
 HelloWorldLayer * helloWorldLayer = (HelloWorldLayer *)this->parent->getChildByTag(777);
 helloWorldLayer->createSprite(this);
}

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