int LuaScriptInterface::luaPlayerCreateParty(lua_State* L)
{
    // player:createParty()
    Player* player = getUserdata<Player>(L, 1);
    if (!player) {
        lua_pushnil(L);
        return 1;
    }

    Party* party = player->getParty();
    if (!party) {
        party = new Party(player);
        pushUserdata<Party>(L, party);
        setMetatable(L, -1, "Party");
    }
    return 1;
}