How to have day/night cycle outside of caves in my server?

[sharkeiqu]

IIRC I need to edit my GAME.CPP file, what do I need to change? It's always full brightness in the mainland. I want a more realistic day night cycle.

void Game::checkLight()
{
    g_scheduler.addEvent(createSchedulerTask(EVENT_LIGHTINTERVAL, std::bind(&Game::checkLight, this)));

    lightHour += lightHourDelta;

    if (lightHour > 1440) {
        lightHour -= 1440;
    }

    if (std::abs(lightHour - SUNRISE) < 2 * lightHourDelta) {
        lightState = LIGHT_STATE_SUNRISE;
    } else if (std::abs(lightHour - SUNSET) < 2 * lightHourDelta) {
        lightState = LIGHT_STATE_SUNSET;
    }

    int32_t newLightLevel = lightLevel;
    bool lightChange = false;

    switch (lightState) {
        case LIGHT_STATE_SUNRISE: {
            newLightLevel += (LIGHT_LEVEL_DAY - LIGHT_LEVEL_NIGHT) / 30;
            lightChange = true;
            break;
        }
        case LIGHT_STATE_SUNSET: {
            newLightLevel -= (LIGHT_LEVEL_DAY - LIGHT_LEVEL_NIGHT) / 30;
            lightChange = true;
            break;
        }
        default:
            break;
    }

    if (newLightLevel <= LIGHT_LEVEL_NIGHT) {
        lightLevel = LIGHT_LEVEL_NIGHT;
        lightState = LIGHT_STATE_NIGHT;
    } else if (newLightLevel >= LIGHT_LEVEL_DAY) {
        lightLevel = LIGHT_LEVEL_DAY;
        lightState = LIGHT_STATE_DAY;
    } else {
        lightLevel = newLightLevel;
    }

    if (lightChange) {
        LightInfo lightInfo = getWorldLightInfo();

        for (const auto& it : players) {
            it.second->sendWorldLight(lightInfo);
        }
    }
}

LightInfo Game::getWorldLightInfo() const
{
    return {lightLevel, 0xD7};
}

void Game::shutdown()
{
    std::cout << "Shutting down..." << std::flush;

    g_scheduler.shutdown();
    g_databaseTasks.shutdown();
    g_dispatcher.shutdown();
    map.spawns.clear();
    raids.clear();

    cleanup();

    if (serviceManager) {
        serviceManager->stop();
    }

    ConnectionManager::getInstance().closeAll();

    std::cout << " done!" << std::endl;
}