Method createLaunchTask

launcher/minecraft/MinecraftInstance.cpp:1048–1170

}

shared_qobject_ptr<LaunchTask> MinecraftInstance::createLaunchTask(AuthSessionPtr session, MinecraftTarget::Ptr targetToJoin)
{
    updateRuntimeContext();
    // FIXME: get rid of shared_from_this ...
    auto process = LaunchTask::create(std::dynamic_pointer_cast<MinecraftInstance>(shared_from_this()));
    auto pptr = process.get();

    APPLICATION->icons()->saveIcon(iconKey(), FS::PathCombine(gameRoot(), "icon.png"), "PNG");

    // print a header
    {
        process->appendStep(makeShared<TextPrint>(pptr, "Minecraft folder is:\n" + gameRoot() + "\n\n", MessageLevel::Launcher));
    }

    // create the .minecraft folder and server-resource-packs (workaround for Minecraft bug MCL-3732)
    {
        process->appendStep(makeShared<CreateGameFolders>(pptr));
    }

    if (!targetToJoin && settings()->get("JoinServerOnLaunch").toBool()) {
        QString fullAddress = settings()->get("JoinServerOnLaunchAddress").toString();
        if (!fullAddress.isEmpty()) {
            targetToJoin.reset(new MinecraftTarget(MinecraftTarget::parse(fullAddress, false)));
        } else {
            QString world = settings()->get("JoinWorldOnLaunch").toString();
            if (!world.isEmpty()) {
                targetToJoin.reset(new MinecraftTarget(MinecraftTarget::parse(world, true)));
            }
        }
    }

    if (targetToJoin && targetToJoin->port == 25565) {
        // Resolve server address to join on launch
        auto step = makeShared<LookupServerAddress>(pptr);
        step->setLookupAddress(targetToJoin->address);
        step->setOutputAddressPtr(targetToJoin);
        process->appendStep(step);
    }

    // load meta
    {
        auto mode = session->status != AuthSession::PlayableOffline ? Net::Mode::Online : Net::Mode::Offline;
        process->appendStep(makeShared<TaskStepWrapper>(pptr, makeShared<MinecraftLoadAndCheck>(this, mode)));
    }

    // check java
    {
        process->appendStep(makeShared<AutoInstallJava>(pptr));
        process->appendStep(makeShared<CheckJava>(pptr));
    }

    // run pre-launch command if that's needed
    if (getPreLaunchCommand().size()) {
        auto step = makeShared<PreLaunchCommand>(pptr);
        step->setWorkingDirectory(gameRoot());
        process->appendStep(step);
    }