Method launchInstance

launcher/LaunchController.cpp:334–399

}

void LaunchController::launchInstance()
{
    Q_ASSERT_X(m_instance != NULL, "launchInstance", "instance is NULL");
    Q_ASSERT_X(m_session.get() != nullptr, "launchInstance", "session is NULL");

    if(!m_instance->reloadSettings())
    {
        QMessageBox::critical(m_parentWidget, tr("Error!"), tr("Couldn't load the instance profile."));
        emitFailed(tr("Couldn't load the instance profile."));
        return;
    }

    m_launcher = m_instance->createLaunchTask(m_session, m_serverToJoin);
    if (!m_launcher)
    {
        emitFailed(tr("Couldn't instantiate a launcher."));
        return;
    }

    auto console = qobject_cast<InstanceWindow *>(m_parentWidget);
    auto showConsole = m_instance->settings()->get("ShowConsole").toBool();
    if(!console && showConsole)
    {
        APPLICATION->showInstanceWindow(m_instance);
    }
    connect(m_launcher.get(), &LaunchTask::readyForLaunch, this, &LaunchController::readyForLaunch);
    connect(m_launcher.get(), &LaunchTask::succeeded, this, &LaunchController::onSucceeded);
    connect(m_launcher.get(), &LaunchTask::failed, this,  &LaunchController::onFailed);
    connect(m_launcher.get(), &LaunchTask::requestProgress, this, &LaunchController::onProgressRequested);

    // Prepend Online and Auth Status
    QString online_mode;
    if(m_session->wants_online) {
        online_mode = "online";

        // Prepend Server Status
        QStringList servers = {"authserver.mojang.com", "session.minecraft.net", "textures.minecraft.net", "api.mojang.com"};
        QString resolved_servers = "";
        QHostInfo host_info;

        for(QString server : servers) {
            host_info = QHostInfo::fromName(server);
            resolved_servers = resolved_servers + server + " resolves to:\n    [";
            if(!host_info.addresses().isEmpty()) {
                for(QHostAddress address : host_info.addresses()) {
                    resolved_servers = resolved_servers + address.toString();
                    if(!host_info.addresses().endsWith(address)) {
                        resolved_servers = resolved_servers + ", ";
                    }
                }
            } else {
                resolved_servers = resolved_servers + "N/A";
            }
            resolved_servers = resolved_servers + "]\n\n";
        }
        m_launcher->prependStep(new TextPrint(m_launcher.get(), resolved_servers, MessageLevel::Launcher));
    } else {
        online_mode = m_demo ? "demo" : "offline";