lua userdata

想把C的结构

如上 传给lua

#include "stdio.h"

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



typedef struct 
{
int  wChairID;
int  iHeroID;
int  iChosenHeros[16];
}
Player;

/* LUA接口声明*/
lua_State* L;

void Operate(Player &obj)
{
int i;

lua_getglobal(L,"PlayOperate");

    lua_newtable(L);
lua_pushstring(L,"wChairID");
    lua_pushnumber(L,obj.wChairID);
lua_settable(L,-3);
    lua_pushstring(L,"iHeroID");
lua_pushnumber(L,obj.iHeroID);
lua_settable(L,-3);

lua_pushstring(L,"iChosenHeros");
lua_newtable(L);
for (i=0;i<16;++i)
{
lua_pushnumber(L,i);
lua_pushnumber(L,obj.iChosenHeros[i]);
lua_settable(L,-3);
}
    lua_settable(L,-3);

    lua_call(L,1);

lua_pushstring(L,"wChairID");
int n=lua_gettop(L);
lua_gettable(L,-2);
obj.wChairID = (int)lua_tonumber(L,-1);
lua_pop(L,1);
lua_pushstring(L,"iHeroID");
lua_gettable(L,-2);
obj.iHeroID = (int)lua_tonumber(L,"iChosenHeros");
lua_gettable(L,-2);
for (i=0;i<16;++i)
{
lua_pushnumber(L,i);
lua_gettable(L,-2);
obj.iChosenHeros[i]=(int)lua_tonumber(L,1);
}

}

int main(int argc,char *argv[])
{
int i;
    Player obj;

obj.wChairID = 1;
obj.iHeroID  = 2;

for(i=0; i<16; ++i)
obj.iChosenHeros[i]=3;

//print initial value
printf( "The origin is blow:n");
printf( "obj.wChairID = %dn",obj.wChairID);
printf( "obj.iHeroID = %dn",obj.iHeroID);
for(i=0; i<16; ++i)
printf( "obj.iChosenHeros[%d] = %dn",obj.iChosenHeros[i]);


/* initialize Lua */
L = lua_open();
    if (NULL == L)
    {
return -1;
    }
/* load Lua base libraries */
luaL_openlibs(L);

/* load the script */
luaL_dofile(L,"e:aaa.lua");  //这里指定aaa.lua文件的位置

/* call function */
Operate(obj);

/* print the result */
printf( "The result is blow:n");
printf( "obj.wChairID = %dn",obj.iChosenHeros[i]);

/* cleanup Lua */
lua_close(L);

return 0;

}