g value = lua_tostring(ls, -1);
result = result + key + : + value + ;
lua_pop(ls, 1);
}
lua_pop(ls, 1);
return result.c_str();
}
const char* DJLCData::callLuaFunction(const char *luaFileName, const char *functionName)
{
lua_State* ls = LuaEngine::getInstance()->getLuaStack()->getLuaState();
int isOpen = luaL_dofile(ls, getFileFullPath(luaFileName));
if (isOpen) {
log(Open Lua Error:%i,isOpen);
return nullptr;
}
lua_getglobal(ls, functionName);
lua_pushstring(ls, shen);
lua_pushnumber(ls, 23);
lua_pushboolean(ls, true);
/*
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, 3, 1);
const char* iResult = lua_tostring(ls, -1);
return iResult;
}
void DJLCData::callCppFunction(const char *luaFileName)
{
lua_State* ls = LuaEngine::getInstance()->getLuaStack()->getLuaState();
/*
Lua调用的C++的函数必须是静态的
*/
lua_register(ls, cppFunction, cppFunction);
int isOpen = luaL_dofile(ls, getFileFullPath(luaFileName));
if (isOpen != 0) {
log(Open Lua Error:%i,isOpen);
return;
}
}
int DJLCData::cppFunction(lua_State *ls)
{
int luaNum = (int)lua_tonumber(ls, 1);
char* luaStr = (char*)lua_tostring(ls, 2);
log(Lua调用cpp函数时传来的两个参数:%i,%s,luaNum,luaStr);
/*
返给Lua的值
*/
lua_pushnumber(ls, 321);
lua_pushstring(ls, shenqi);
/*
返给Lua值个数
*/
return 2;
}
const char* DJLCData::getFileFullPath(const char *fileName)
{
//src// 这里的//是指我的lua文件放在src这个目录下
std::string str = StringUtils::format(src//%s,fileName);
return FileUtils::getInstance()->fullPathForFilename(str).c_str();
}
hello2.lua
function myadd(x, y)
return x + y
end
luaStr = shenqi
luaTable = {name = xiaonan,age = 20}
function luaLogString(_logStr,_logNum,_logBool)
print(Lua 脚本打印从C传来的字符串：,_logStr,_logNum,_logBool)
return Call Lua function OK
end
function call_cpp(_logStr,_logNum,_logBool)
num,str = cppFunction(999,lua string)
print(从cpp函数中获得两个返回值：,num,str)
end
调用方法：
log(%s,DJLCData::getInstance()->getLuaVarString(hello2.lua, luaStr));
log(%s,DJLCData::getInstance()->getLuaVarOneOfTable(hello2.lua, luaTable, name));
log(Table = %s,DJLCData::getInstance()->getLuaVarTable(hello2.lua, luaTable));
log(Call Lua Function Back :%s,DJLCData::getInstance()->callLuaFunction(hello2.lua, luaLogString));
DJLCData::getInstance()->callCppFunction(hello2.lua);
DJLCData::getInstance()->callLuaFunction(hello2.lua, call_cpp);
cocos2d: shenqi
cocos2d: xiaonan
cocos2d: Table = name:xiaonan age:20
cocos2d: [LUA-print] Lua 脚本打印从C传来的字符串： shen 23 true
cocos2d: Call Lua Function Back :Call Lua function OK
cocos2d: Lua调用cpp函数时传来的两个参数:999,lua string
cocos2d: [LUA-print] 从cpp函数中获得两个返回值： 321 shenqi