利用tolua++编译我们创建的pkg

来源：互联网发布：ubuntu ssh开机自启动编辑：程序博客网时间：2024/06/02 23:19

转载http://blog.csdn.net/xiaominghimi/article/details/8770396

下面进行详细步骤讲解：

步骤一：首先自定义类（这里Himi自定义类名 “MySprite”）

MySprite.h

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#ifndef __mtet__MySprite__
#define __mtet__MySprite__
 
#include "cocos2d.h"
usingnamespacecocos2d;
 
classMySprite : publicCCSprite{
public:
    staticMySprite* createMS(constchar* fileName);
};
#endif /* defined(__mtet__MySprite__) */

MySprite.cpp

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#include "MySprite.h"
MySprite* MySprite::createMS(constchar* fileName){
    MySprite* sp = newMySprite();
    if(sp && sp->initWithFile(fileName)){
        sp->setPosition(ccp(100,100));
        sp->autorelease();
        returnsp;
    }
    CC_SAFE_DELETE(sp);
    returnNULL;
}

步骤二：利用tolua++编译我们创建的pkg，将自定义类嵌入LuaCocos2d.cpp中

首先我们到cocos2dx引擎目录下找到tools下的tolua++文件夹。

然后你看到很多的pkg文件，你可以使用文本打开，就会发现都是Cocos2dx引擎封装的类、函数定义，如下CCSprite.pkg

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/*
typedef enum {
    //! Translate with it's parent
    CC_HONOR_PARENT_TRANSFORM_TRANSLATE =  1 << 0,
    //! Rotate with it's parent
    CC_HONOR_PARENT_TRANSFORM_ROTATE    =  1 << 1,
    //! Scale with it's parent
    CC_HONOR_PARENT_TRANSFORM_SCALE     =  1 << 2,
    //! Skew with it's parent
    CC_HONOR_PARENT_TRANSFORM_SKEW      =  1 << 3,
 
    //! All possible transformation enabled. Default value.
    CC_HONOR_PARENT_TRANSFORM_ALL       =  CC_HONOR_PARENT_TRANSFORM_TRANSLATE | CC_HONOR_PARENT_TRANSFORM_ROTATE | CC_HONOR_PARENT_TRANSFORM_SCALE | CC_HONOR_PARENT_TRANSFORM_SKEW,
 
} ccHonorParentTransform;
*/
classCCSprite : publicCCNode
{
    voidsetDirty(boolbDirty);
    boolisDirty(void);
 
    ccV3F_C4B_T2F_Quad getQuad(void);
 
    CCRect getTextureRect(void);
    //bool isUsesBatchNode(void);
    boolisTextureRectRotated(void);
 
    voidsetAtlasIndex(unsignedintuAtlasIndex);
    unsignedintgetAtlasIndex(void);
    //void setUsesSpriteBatchNode(bool bUsesSpriteBatchNode);
    voidsetTextureAtlas(CCTextureAtlas *pobTextureAtlas);
    CCTextureAtlas* getTextureAtlas(void);
    //void setSpriteBatchNode(CCSpriteBatchNode *pobSpriteBatchNode);
    //CCSpriteBatchNode* getSpriteBatchNode(void);
    //void setHonorParentTransform(ccHonorParentTransform eHonorParentTransform);
    //ccHonorParentTransform getHonorParentTransform(void);
    voidsetBlendFunc(ccBlendFunc blendFunc);
    ccBlendFunc getBlendFunc(void);
 
    CCPoint getOffsetPosition(void);
 
    voidignoreAnchorPointForPosition(boolnewValue);
    voidsetFlipX(boolbFlipX);
    voidsetFlipY(boolbFlipY);
    boolisFlipX(void);
    boolisFlipY(void);
 
    voidremoveChild(CCNode* pChild, boolbCleanUp);
    voidremoveAllChildrenWithCleanup(boolbCleanup);
    voidreorderChild(CCNode* pChild, intzOrder);
    voidaddChild(CCNode* pChild);
    voidaddChild(CCNode* pChild, intzOrder);
    voidaddChild(CCNode* pChild, intzOrder,inttag);
    voidsortAllChildren();
    //void setPosition(CCPoint pos);
    voidsetRotation(floatrotation);
    voidsetSkewX(floatsx);
    voidsetSkewY(floatsy);
    voidsetScale(floatfScale);
    voidsetScaleX(floatfScaleX);
    voidsetScaleY(floatfScaleY);
    voidsetVertexZ(floatfVertexZ);
    voidsetAnchorPoint(constCCPoint & anchor);
    voidsetVisible(boolbVisible);
 
    voidsetOpacity(GLubyte opacity);
    GLubyte getOpacity(void);
 
    voidsetColor(ccColor3B color3);
    ccColor3B getColor(void);
    voidsetOpacityModifyRGB(boolbValue);
    boolisOpacityModifyRGB(void);
 
    voidsetTexture(CCTexture2D *texture);
    CCTexture2D* getTexture(void);
 
    voidupdateTransform(void);
    //void useSelfRender(void);
    voidsetTextureRect(CCRect rect);
    voidsetTextureRect(CCRect rect, boolrotated, CCSize size);
    voidsetVertexRect(CCRect rect);
    //void useBatchNode(CCSpriteBatchNode *batchNode);
    voidsetDisplayFrame(CCSpriteFrame *pNewFrame);
    boolisFrameDisplayed(CCSpriteFrame *pFrame);
    CCSpriteFrame* displayFrame(void);
    voidsetBatchNode(CCSpriteBatchNode* pBatchNode);
    CCSpriteBatchNode* getBatchNode();
    voidsetDisplayFrameWithAnimationName(constchar*animationName, intframeIndex);
 
    staticCCSprite* createWithTexture(CCTexture2D *pTexture);
    staticCCSprite* createWithTexture(CCTexture2D *pTexture, CCRect rect);
    staticCCSprite* createWithSpriteFrame(CCSpriteFrame *pSpriteFrame);
    staticCCSprite* createWithSpriteFrameName(constchar*pszSpriteFrameName);
    staticCCSprite* create(constchar*pszFileName, CCRect rect);
    staticCCSprite* create(constchar*pszFileName);
    staticCCSprite* create();
};

没错，我们也会按照类似方式进行创建我们自定义类的pkg文件。

我们自定义一个文件（文本、xcode等都可以），后缀 .pkg ，然后将Himi自定义的MySprite类定义到pkg中，如下：

注意：只要自定义类.h中的内容，至于cpp的实现，binding后lua自动调用你类的函数

MySprite.pkg

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classMySprite : publicCCSprite{
    staticMySprite* createMS(constchar* fileName);
};

在pkg中我只是定义了创建函数而已，至于更多的函数就交给大家自定义啦，另外我们注意书写pkg时是需要几条规则的，其实在tolua++这个文件夹中我们也能看到有一个名字叫 README 的文件，打开如下：

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1.Generatingthelua<-->C bindings with tolua++
 
    Build scripts forwindows(build.bat)andunix (build.sh)are provided
    togeneratetherelevant files aftermodifyingthe.pkg files.  These
    scripts basically runthefollowing command:
 
        tolua++.exe-L basic.lua -o LuaCocos2d.cpp Cocos2d.pkg
 
    This will generate thebindingsfileandpatch itwithcome cocos2dx
    specific modifications.
 
    On POSIX systems you can also just run"make"to build thebindings
    if/when you change .pkg files.
 
2.Writing .pkg files
 
    1)enum keeps thesame//枚举类型保留不变  
    2)removeCC_DLL fortheclass defines,pay attention tomulti inherites//删除cc_dll的类定义，改用多继承  
    3)removeinline keyword fordeclarationandimplementation//删除内联关键字声明和实现  
    4)removepublic protect andprivate//删除访问限定词  
    5)removethe decalration of class member variable//删除成员变量  
    6)keep static keyword//保留静态关键词  
    7)removememeber functions thatdeclaredasprivateorprotected//非public的函数都删除 