2014/1/26 更新
近期又发现了一个非常easy的方法，事实上coco2dx已经给我们提供设置loader的方法。
注意：有个局限性，在非android平台下调用pEngine->executeScriptFile是不调用loader的，仅仅有require这样的才会调用loader。也就是说你直接executeScriptFile("main.lua")这个脚本不能加密，main.lua里面require的才干加密
过程例如以下：
1、实现自己的loader(參考int cocos2dx_lua_loader(lua_State *L))
#define CODE_MASK 250extern "C"
{int decode_lua_loader(lua_State *L){std::string filename(luaL_checkstring(L, 1));size_t pos = filename.rfind(".lua");if (pos != std::string::npos){filename = filename.substr(0, pos);}pos = filename.find_first_of(".");while (pos != std::string::npos){filename.replace(pos, 1, "/");pos = filename.find_first_of(".");}filename.append(".lua");unsigned long codeBufferSize = 0;unsigned char* codeBuffer = CCFileUtils::sharedFileUtils()->getFileData(filename.c_str(), "rb", &codeBufferSize);//-------------decode herefor(int i=0; i<codeBufferSize; i++){codeBuffer[i] ^= CODE_MASK; //xor decode}//-------------if (codeBuffer){if (luaL_loadbuffer(L, (char*)codeBuffer, codeBufferSize, filename.c_str()) != 0){luaL_error(L, "error loading module %s from file %s :\n\t%s",lua_tostring(L, 1), filename.c_str(), lua_tostring(L, -1));}delete []codeBuffer;}else{CCLog("can not get file data of %s", filename.c_str());}return 1;}
}2、加入loader
CCScriptEngineManager::sharedManager()->setScriptEngine(pEngine); pEngine->addLuaLoader(decode_lua_loader);//add this
我在win32上測试通过
http://www.cnblogs.com/mrblue/archive/2013/06/06/3122543.html
