void ScriptConfig::AddRandomDeviation()

    for (ScriptConfigItemList::const_iterator it = this->GetConfigList()->begin(); it != this->GetConfigList()->end(); it++) {

        if ((*it).random_deviation != 0) {

            int value = this->GetSetting((*it).name);

            uint32 r = InteractiveRandomRange((*it).random_deviation * 2) - (*it).random_deviation + value;

            this->SetSetting((*it).name, !strcmp((*it).name, "start_date") ? r : value != 0 ? max((uint32)1, r) : 0);

        }

    }