cocoNode节点函数注释

墨蓝 2022-07-29 11:56 121阅读 0赞

可以看到CCNode 几乎是游戏中处理的大部分类的父类，其主要有以下函数：

virtual int [getZOrder][] (void) //获取节点的顺序

virtual const [CCPoint][] & [getPosition][] (void) //获取节点的位置

virtual void [setPosition][] (const [CCPoint][] &var) //设置节点的位置

virtual [CCArray][] \* [getChildren][] (void) //获取其所有子节点

virtual [CCCamera][] \* [getCamera][] (void)//获取其对应的摄像机

virtual bool [getIsVisible][] (void) //判断节点是否可见

virtual void [setIsVisible][] (bool var) //设置节点可见性

virtual const [CCPoint][] & [getAnchorPoint][] (void) //获取节点的锚点的位置

virtual void [setAnchorPoint][] (const [CCPoint][] &var) //设置节点的锚点位置

virtual bool [getIsRunning][] (void) //判断节点是否在运行

virtual [CCNode][] \* [getParent][] (void)//获取父及节点指针

virtual void [setParent][] ([CCNode][] \*var) //设置节点的父节点

virtual int [getTag][] (void) //获取节点的tag

virtual void [setTag][] (int var) //设置节点的tag

char \* [description][] (void) //返回节点的描述

virtual void [onEnter][] () //进入节点时的回调函数

virtual void [onEnterTransitionDidFinish][] ()//进入节点后的回调函数

virtual void [onExit][] ()//离开节点时的回调函数

virtual void [addChild][] ([CCNode][] \*child)//增加节点

virtual void [addChild][addChild 1] ([CCNode][] \*child, int zOrder) //通过顺序添加节点

virtual void [addChild][addChild 2] ([CCNode][] \*child, int zOrder, int tag)//通过顺序和tag添加节点

void [removeFromParentAndCleanup][] (bool cleanup)//删除父节点中的当前节点并清除动作及回调函数

virtual void [removeChild][] ([CCNode][] \*child, bool cleanup) //删除节点

void [removeChildByTag][] (int tag, bool cleanup)//通过tag删除节点

virtual void [removeAllChildrenWithCleanup][] (bool cleanup)//删除节点并清除动作及回调函数

[CCNode][] \* [getChildByTag][] (int tag)//通过tag获取节点

virtual void [reorderChild][] ([CCNode][] \*child, int zOrder)//根据order重新排序

virtual void [cleanup][] (void)//清除动作

virtual void [draw][] (void)//绘制自己

virtual void [visit][] (void)//访问节点

[CCAction][] \* [runAction][] ([CCAction][] \*action) //运行动作

void [stopAllActions][] (void)//停止所有的动作

void [stopAction][] ([CCAction][] \*action)//停止动作

void [stopActionByTag][] (int tag) //通过tag停止动作

[CCAction][] \* [getActionByTag][] (int tag)//通过tag获取动作的指针

unsigned int [numberOfRunningActions][] (void)//正在运行的动作的总数

void [schedule][] ([SEL\_SCHEDULE][SEL_SCHEDULE] selector)//定义一个定时器

void [schedule][schedule 1] ([SEL\_SCHEDULE][SEL_SCHEDULE] selector, [ccTime][] interval)//定义一个定时器

void [unschedule][] ([SEL\_SCHEDULE][SEL_SCHEDULE] selector)//取消一个定时器

void [unscheduleAllSelectors][] (void)//取消所有定时器

void [resumeSchedulerAndActions][] (void)//恢复定时器和动作

void [pauseSchedulerAndActions][] (void)//暂停定时器和动作

static [CCNode][] \* [node][] (void)//生成一个节点

CCNode是cocos2d-x的渲染链，写游戏基本上就是和他打交道了，cocos2d-x同时只能渲染一个CCScene,因此CCScene是渲染的根节点。在构建游戏时，一般是一个Scene中添加一个或者多个CCLayer，一个Layer中又添加多个CCSprite或者CCMenu，CCSprite中还可以添加CCParticleSystem等等。这样就构建了一个渲染树，cocos2d-x历遍这个树来将图像显示在屏幕上。

coco2d-x的渲染实际上是调用visit()函数来完成的：即visit()这个函数调用它包含的Child的zOrder<0的visit()函数，之后调用draw()函数，再调用Child的zOrder>=0的visit()函数，它实际上是一个深度优先的算法。他的Child是按照zOrder排序的，以保证渲染的正确性。draw()的作用是绘制自己。在CCSprite这些确实需要绘制的类中，draw()调用openGL的函数来完成绘制功能——把一个纹理映射到一个矩形上。

如果要自定义绘制一些图像，可以重写draw()函数，不过不要忘记调用父类的draw()函数。

可以进行网状关系的管理，其实CCScene,CCLayer也是一个CCNode.它提供节点增删，包含，提供节点缩放，每个节点有一个照相机，提供动画支持，也就是说每一个从CCNode派生的类都可以执行动画操作；

[getZOrder]: http://cn.cocos2d-x.org/document/index/function?uid=aa04d6529005d70dcc98f17c042ced2d9&url=d0/ded/classcocos2d_1_1_c_c_node.html
[CCPoint]: http://cn.cocos2d-x.org/document/index/class?url=d2/df3/classcocos2d_1_1_c_c_point.html
[getPosition]: http://cn.cocos2d-x.org/document/index/function?uid=aec561a47f50b7efc4b8f6a287dd218c4&url=d0/ded/classcocos2d_1_1_c_c_node.html
[setPosition]: http://cn.cocos2d-x.org/document/index/function?uid=a0c3fcdf808e968a1bfa782536012929e&url=d0/ded/classcocos2d_1_1_c_c_node.html
[CCArray]: http://cn.cocos2d-x.org/document/index/class?url=d9/d2e/classcocos2d_1_1_c_c_array.html
[getChildren]: http://cn.cocos2d-x.org/document/index/function?uid=a1b9727fe12e6cca8ca2d36922ac5bf44&url=d0/ded/classcocos2d_1_1_c_c_node.html
[CCCamera]: http://cn.cocos2d-x.org/document/index/class?url=d2/d51/classcocos2d_1_1_c_c_camera.html
[getCamera]: http://cn.cocos2d-x.org/document/index/function?uid=a75dc2995d7733ec29bc5939495b57659&url=d0/ded/classcocos2d_1_1_c_c_node.html
[getIsVisible]: http://cn.cocos2d-x.org/document/index/function?uid=ae5d9ea7812270783d1c47980faac304f&url=d0/ded/classcocos2d_1_1_c_c_node.html
[setIsVisible]: http://cn.cocos2d-x.org/document/index/function?uid=a05fb3d1eb3f48d6900ddc155a21aca8c&url=d0/ded/classcocos2d_1_1_c_c_node.html
[getAnchorPoint]: http://cn.cocos2d-x.org/document/index/function?uid=a9f5ec8ccf96f61449e4b5cbb39f3be13&url=d0/ded/classcocos2d_1_1_c_c_node.html
[setAnchorPoint]: http://cn.cocos2d-x.org/document/index/function?uid=a8a2fb841d4fe85b3801c58cce3fe0efd&url=d0/ded/classcocos2d_1_1_c_c_node.html
[getIsRunning]: http://cn.cocos2d-x.org/document/index/function?uid=aaa255d3e96e3ed7fd074e6a5c9e670d3&url=d0/ded/classcocos2d_1_1_c_c_node.html
[CCNode]: http://cn.cocos2d-x.org/document/index/class?url=d0/ded/classcocos2d_1_1_c_c_node.html
[getParent]: http://cn.cocos2d-x.org/document/index/function?uid=af70260e840c3ef360af216169907003d&url=d0/ded/classcocos2d_1_1_c_c_node.html
[setParent]: http://cn.cocos2d-x.org/document/index/function?uid=a56103f04664fc8b739e732ed9234eaaf&url=d0/ded/classcocos2d_1_1_c_c_node.html
[getTag]: http://cn.cocos2d-x.org/document/index/function?uid=a59f12ec0ebccde18b05b148123e5a874&url=d0/ded/classcocos2d_1_1_c_c_node.html
[setTag]: http://cn.cocos2d-x.org/document/index/function?uid=aabe1eb7eba00d5bf4288b5b3a33c5e7c&url=d0/ded/classcocos2d_1_1_c_c_node.html
[description]: http://cn.cocos2d-x.org/document/index/function?uid=a18439ba7614b766dd4db5874f41ab6b6&url=d0/ded/classcocos2d_1_1_c_c_node.html
[onEnter]: http://cn.cocos2d-x.org/document/index/function?uid=a135d564e74970534bdcc703252f05ef3&url=d0/ded/classcocos2d_1_1_c_c_node.html
[onEnterTransitionDidFinish]: http://cn.cocos2d-x.org/document/index/function?uid=a9ecc243090bd42aa514f0df65848f588&url=d0/ded/classcocos2d_1_1_c_c_node.html
[onExit]: http://cn.cocos2d-x.org/document/index/function?uid=ad11ad620f620798fb4cf107a06ed4dba&url=d0/ded/classcocos2d_1_1_c_c_node.html
[addChild]: http://cn.cocos2d-x.org/document/index/function?uid=a9c0443519e601a065d997657aa5762d1&url=d0/ded/classcocos2d_1_1_c_c_node.html
[addChild 1]: http://cn.cocos2d-x.org/document/index/function?uid=a286c2ab87857be87f692b720b631fa5d&url=d0/ded/classcocos2d_1_1_c_c_node.html
[addChild 2]: http://cn.cocos2d-x.org/document/index/function?uid=a0afe71511fe4c879001f7df8646acbfe&url=d0/ded/classcocos2d_1_1_c_c_node.html
[removeFromParentAndCleanup]: http://cn.cocos2d-x.org/document/index/function?uid=aa971097de826c462cff2a43cc8dbb355&url=d0/ded/classcocos2d_1_1_c_c_node.html
[removeChild]: http://cn.cocos2d-x.org/document/index/function?uid=a9d4f0675e803de610893a0adc29f1fb5&url=d0/ded/classcocos2d_1_1_c_c_node.html
[removeChildByTag]: http://cn.cocos2d-x.org/document/index/function?uid=a2ec0c97a52337f878c95bd819baf9525&url=d0/ded/classcocos2d_1_1_c_c_node.html
[removeAllChildrenWithCleanup]: http://cn.cocos2d-x.org/document/index/function?uid=a0b5b225479b416b6d9f701c5de7e7e63&url=d0/ded/classcocos2d_1_1_c_c_node.html
[getChildByTag]: http://cn.cocos2d-x.org/document/index/function?uid=aa8d045f96e80f5dfdded4cfcc23e680e&url=d0/ded/classcocos2d_1_1_c_c_node.html
[reorderChild]: http://cn.cocos2d-x.org/document/index/function?uid=a6e86352d5edc2788bc8c09d051552b67&url=d0/ded/classcocos2d_1_1_c_c_node.html
[cleanup]: http://cn.cocos2d-x.org/document/index/function?uid=a221d2fd6975e8f2ecbd45005d14f4329&url=d0/ded/classcocos2d_1_1_c_c_node.html
[draw]: http://cn.cocos2d-x.org/document/index/function?uid=a41d38206813a730b17b6d0bc723ae209&url=d0/ded/classcocos2d_1_1_c_c_node.html
[visit]: http://cn.cocos2d-x.org/document/index/function?uid=ad3e11dd159b224765b3bf9cf156e3092&url=d0/ded/classcocos2d_1_1_c_c_node.html
[CCAction]: http://cn.cocos2d-x.org/document/index/class?url=d7/d12/classcocos2d_1_1_c_c_action.html
[runAction]: http://cn.cocos2d-x.org/document/index/function?uid=a146fd4bbb33dd39574177f1fd7cafd47&url=d0/ded/classcocos2d_1_1_c_c_node.html
[stopAllActions]: http://cn.cocos2d-x.org/document/index/function?uid=a82a13f737f08dd08234187e5783d0894&url=d0/ded/classcocos2d_1_1_c_c_node.html
[stopAction]: http://cn.cocos2d-x.org/document/index/function?uid=a9e9c316a6f3273a0d1229be878145904&url=d0/ded/classcocos2d_1_1_c_c_node.html
[stopActionByTag]: http://cn.cocos2d-x.org/document/index/function?uid=a4b2ba3025a3844622fbb9aed476b4e01&url=d0/ded/classcocos2d_1_1_c_c_node.html
[getActionByTag]: http://cn.cocos2d-x.org/document/index/function?uid=a58bfeb0119a3f3c9bb2374bfe0fbed94&url=d0/ded/classcocos2d_1_1_c_c_node.html
[numberOfRunningActions]: http://cn.cocos2d-x.org/document/index/function?uid=a09d3479cbc73d021da2fec96aa2f40a4&url=d0/ded/classcocos2d_1_1_c_c_node.html
[schedule]: http://cn.cocos2d-x.org/document/index/function?uid=a201de3de18ef592a3dd7564bbe449117&url=d0/ded/classcocos2d_1_1_c_c_node.html
[SEL_SCHEDULE]: http://cn.cocos2d-x.org/document/index/class?url=d2/dc0/namespacecocos2d.html#a32d8676b2d7a661bb7aa7e97e2fa3aff
[schedule 1]: http://cn.cocos2d-x.org/document/index/function?uid=a32f3cb4d1f618fa9b1c5d0c79eaabff4&url=d0/ded/classcocos2d_1_1_c_c_node.html
[ccTime]: http://cn.cocos2d-x.org/document/index/class?url=d2/dc0/namespacecocos2d.html#ae6c674aac4bfb46a4e6cb1e89bb66b4f
[unschedule]: http://cn.cocos2d-x.org/document/index/function?uid=ae3fa7db85e4ba9f95633a348daf70c98&url=d0/ded/classcocos2d_1_1_c_c_node.html
[unscheduleAllSelectors]: http://cn.cocos2d-x.org/document/index/function?uid=aabc253d4c2d2138f914de01430b5e3ef&url=d0/ded/classcocos2d_1_1_c_c_node.html
[resumeSchedulerAndActions]: http://cn.cocos2d-x.org/document/index/function?uid=a97e1d2a09f87113ee2be7b36de254824&url=d0/ded/classcocos2d_1_1_c_c_node.html
[pauseSchedulerAndActions]: http://cn.cocos2d-x.org/document/index/function?uid=ad5f9ed4ab347fac966b2231b417a51e0&url=d0/ded/classcocos2d_1_1_c_c_node.html
[node]: http://cn.cocos2d-x.org/document/index/function?uid=ab15b6a7d1fd239f6a438b1b76a564c1c&url=d0/ded/classcocos2d_1_1_c_c_node.html