Cocos2dx 3.0 过渡篇（一）初体验

柔光的暖阳◎ 2022-08-27 01:29 166阅读 0赞

尊重原创，转载请注明来自：star特530的CSDN博客 ：[http://blog.csdn.net/start530/article/details/18052953][http_blog.csdn.net_start530_article_details_18052953]

有段时间没更新博客了，自认为水平实在够菜，不忍心出来坑人~~~~

昨天cocos2dx 3.0 beta 版也出来了，我之前也用过一两个星期的alpha1版，所以决定写一些关于3.0的博文，这里不仅只有我个人的一些理解和看法，同时我也会把开发过程中遇到的问题贴上来，希望大神们给予回答~~  
  
  
1、以CC开头的类从此去掉CC，如：

举个例子，创建一个精灵的方式：

**\[cpp\]** [view plain][] [copy][view plain] [![在CODE上查看代码片][CODE]][CODE_CODE] [![派生到我的代码片][ico_fork.svg]][ico_fork.svg 1]

1.  v2.0 
2.  CCSprite\* sp = CCSprite::create(); 
3.  
4.  
5.  v3.0 
6.  auto sp = Sprite::create();

2、clone() 替代 copy(), 这个我用的不多，所以也就不多交代了；  
  
  
3、Director的单例换成getInstance() 和 destroyInstance();

| v2.1                          | v3.0                        |
    | CCDirector->sharedDirector()  | Director->getInstance()     |
    | CCDirector->endDirector()     | Director->destroyInstance() |
    | etc...                                                      |

|  
4、新的触摸机制，先贴一段代码给大家看看，可能是下一篇或者下下篇我会详细讲下新的触摸机制的。

**\[cpp\]** [view plain][] [copy][view plain] [![在CODE上查看代码片][CODE]][CODE_CODE] [![派生到我的代码片][ico_fork.svg]][ico_fork.svg 1]

1.  auto sprite = Sprite::create("file.png"); 
2.  ... 
3.  auto listener = EventListenerTouchOneByOne::create(); 
4.  listener->setSwallowTouch(**true**); 
5.  listener->onTouchBegan = \[\](Touch\* touch, Event\* event) \{ do\_some\_thing(); **return****true**; \}; 
6.  listener->onTouchMoved = \[\](Touch\* touch, Event\* event) \{ do\_some\_thing(); \}; 
7.  listener->onTouchEnded = \[\](Touch\* touch, Event\* event) \{ do\_some\_thing(); \}; 
8.  listener->onTouchCancelled = \[\](Touch\* touch, Event\* event) \{ do\_some\_thing(); \}; 
9.  // The priority of the touch listener is based on the draw order of sprite
10. EventDispatcher::getInstance()->addEventListenerWithSceneGraphPriority(listener, sprite); 
11. // Or the priority of the touch listener is a fixed value
12. EventDispatcher::getInstance()->addEventListenerWithFixedPriority(listener, 100); // 100 is a fixed value

5、还有一些杂七杂八的东西，本人理解的不透，也就不发出来献丑了，最后将CCType.h 里的一些变动贴出来，让我们愉快的结束这篇博文。

一些全局的定义：

// in v2.1
    ccColor3B color3B = ccc3(0, 0, 0);
    ccc3BEqual(color3B, ccc3(1, 1, 1));
    ccColor4B color4B = ccc4(0, 0, 0, 0);
    ccColor4F color4F = ccc4f(0, 0, 0, 0);
    color4F = ccc4FFromccc3B(color3B);
    color4F = ccc4FFromccc4B(color4B);
    ccc4FEqual(color4F, ccc4F(1, 1, 1, 1));
    color4B = ccc4BFromccc4F(color4F);
    
    color3B = ccWHITE;
    
    // in v3.0
    Color3B color3B = Color3B(0, 0, 0);
    color3B.equals(Color3B(1, 1, 1));
    Color4B color4B = Color4B(0, 0, 0, 0);
    Color4F color4F = Color4F(0, 0, 0, 0);
    color4F = Color4F(color3B);
    color4F = Color4F(color4B);
    color4F.equals(Color4F(1, 1, 1, 1));
    color4B = Color4B(color4F);
    
    color3B = Color3B::WHITE;

## 继续... ##

[http_blog.csdn.net_start530_article_details_18052953]: http://blog.csdn.net/start530/article/details/18052953
[view plain]: http://blog.csdn.net/star530/article/details/18052953#
[CODE]: https://code.csdn.net/assets/CODE_ico.png
[CODE_CODE]: https://code.csdn.net/snippets/150092
[ico_fork.svg]: https://code.csdn.net/assets/ico_fork.svg
[ico_fork.svg 1]: https://code.csdn.net/snippets/150092/fork