【cocos2d-x + Lua（2） C++和lua数据通讯之间的互调】

//  PublicSendLuaData.cpp
//
  Lua and C++/C 交互类

#ifndef __PublicSendLuaData__
#define __PublicSendLuaData__

#include "cocos2d.h"
using namespace cocos2d;
namespace std;

extern C" {
#include lua.h"
#include lualib.hlauxlib.h"
};

class PublicSendLuaData{
public:
    
    static PublicSendLuaData* getInstance();
    
    /*
     直接获取Lua中得变量名值
     文件名 luaFileName
     变量名 varName
     */
    const char* getLuaVarString(char* luaFileName,char* varName);
    
    
     获取Lua中一个表中得节点名，甚至方法
     文件名luaFileName
     方法名varName
     节点名
     char* getLuaVarOneOfTable(char* varName,255);line-height:1.5 !important;">char* keyName);
    
    
     调用Lua全局Table
     lua文件名luaFileName
     table变量名varName
     char* getLuaVarTable(
     带参数有返回
     文件名luaFileName
     方法名functionName
     参数序列arraypar
     参数类型arraypartype
     char* callLuaFuncParReturn(char* functionName,CCArray* arraypar,CCArray* arraypartype);
    
    
     带参数无返回
     文件名luaFileName
     方法名functionName
     参数序列arraypar
     参数类型arraypartype
     void callLuaFuncPar( arraypartype);
    
    
private:
    
    static bool _isFirst;
    static PublicSendLuaData* m_instance;
    char* getFileFullPath(char* fileName);
    ~PublicSendLuaData();
};

#endif

Created by ZISOU-YSJ Lua and C++/c 交互类 #include PublicSendLuaData.hCCLuaEngine.h" PublicSendLuaData* PublicSendLuaData::m_instance = NULL; PublicSendLuaData* PublicSendLuaData::getInstance(){ if(!m_instance) { m_instance = new PublicSendLuaData(); } return m_instance; } 获取变量名值 char* PublicSendLuaData::getLuaVarString(char* varName){ lua_State* ls = CCLuaEngine::defaultEngine()->getLuaStack()->getLuaState(); int isOpen = luaL_dofile(ls,getFileFullPath(luaFileName)); if(isOpen!=0){ CCLOG(Open Lua Error: %i",isOpen); return NULL; } lua_settop(ls,0); lua_getglobal(ls,varName); int statesCode = lua_isstring(ls,1); if(statesCode!=1){ CCLOG(return NULL; } char* str = lua_tostring(ls,128);line-height:1.5 !important;">1); lua_pop(ls,128);line-height:1.5 !important;">1); return str; } char* PublicSendLuaData::getLuaVarOneOfTable(char* keyName){ lua_State* ls = CCLuaEngine::defaultEngine()->getLuaStack()->getLuaState(); return NULL; } lua_getglobal(ls,255);line-height:1.5 !important;">int statesCode = lua_istable(ls,-return NULL; } lua_pushstring(ls,keyName); lua_gettable(ls,-2); char* valueString = lua_tostring(ls,128);line-height:1.5 !important;">1); lua_pop(ls,255);line-height:1.5 !important;">return valueString; } 执行Lua表，返回表结构 char* PublicSendLuaData::getLuaVarTable(char* varName){ lua_State* ls = CCLuaEngine::defaultEngine()->getLuaStack()->getLuaState(); int it = lua_gettop(ls); lua_pushnil(ls); string result=""; while(lua_next(ls,it)) { string key = lua_tostring(ls,128);line-height:1.5 !important;">2); string value = lua_tostring(ls,128);line-height:1.5 !important;">1); result=result+key+:"+value+t"; lua_pop(ls,128);line-height:1.5 !important;">1); } lua_pop(ls,255);line-height:1.5 !important;">return result.c_str(); } 带参执行Lua方法有返回值 char* PublicSendLuaData::callLuaFuncParReturn( arraypartype){ lua_State* ls = CCLuaEngine::defaultEngine()->getLuaStack()->getLuaState(); int countnum = arraypar->count(); if(countnum>0) { for (int i = 0; i<arraypar->count(); i++) { CCString* typestr = (CCString*)arraypartype->objectAtIndex(i); CCString* strnr = (CCString*)arraypar->objectAtIndex(i); if(typestr->isEqual(CCString::create(string"))) { lua_pushstring(ls,strnr->getCString()); } else int"))) { lua_pushnumber(ls,strnr->intValue()); } bool"))) { lua_pushboolean(ls,strnr->boolValue()); } } } lua_call 第一个参数:函数的参数个数 第二个参数:函数返回值个数 */ lua_call(ls,countnum,255);line-height:1.5 !important;">char* iResult = lua_tostring(ls,255);line-height:1.5 !important;">return iResult; } 带参执行Lua方法无返回值 void PublicSendLuaData::callLuaFuncPar(0); } char* PublicSendLuaData::getFileFullPath(char* fileName){ return CCFileUtils::sharedFileUtils()->fullPathForFilename(fileName).c_str(); } PublicSendLuaData::~PublicSendLuaData(){ CC_SAFE_DELETE(m_instance); m_instance=NULL; }

CCArray* arraypar = CCArray::create();
arraypar->addObject(CCString::create(参数值"));
CCArray* arraytype =CCArray::create();
arraytype->addObject(CCString::create("));
PublicSendLuaData::getInstance()->callLuaFuncPar(Lua文件名",0);line-height:1.5 !important;">参数名 这个就是具体调用Lua里面一个带参数全局方法的语句；
 
 
 我写了一个类型匹配的方法：
 
 
　　　　　　　if(typestr->isEqual(CCString::create(boolValue());
            }