public async void Launch()
{
IsLaunching = true;
GreetingVM.IsShown = false;
LaunchProcessStarted?.Invoke();
// Check JRE
if (_config.JreDir == null)
{
_windowManager.ShowMessageBox("${JreNotFound}\n${PleaseInstallJre}", "${IntegrityCheck}",
MessageBoxButton.OK, MessageBoxImage.Error);
_statusVM.Status = LaunchStatus.Failed;
return;
}
_statusVM.GameOutputLog = null;
this.ActivateItem(_statusVM);
_statusVM.Status = LaunchStatus.LoggingIn;
// No account found, the user must create one
var account = _accountService.GetSelected();
if (account == null)
{
_accountEditVM.Setup(AccountEditType.AddAccount);
if (_windowManager.ShowDialog(_accountEditVM) != true)
{
_statusVM.Status = LaunchStatus.Failed;
return;
}
account = _accountService.GetSelected();
}
else
{
// Previous login token is invalid, need re-authentication
var authResult = await _authService.LoginAsync(account);
if (!authResult.IsSuccessful)
{
_accountEditVM.Setup(AccountEditType.ReAuth, account);
if (_windowManager.ShowDialog(_accountEditVM) != true)
{
_statusVM.Status = LaunchStatus.Failed;
return;
}
}
else if (authResult.SelectedProfile == null)
{
var selectedProfile = authResult.AvailableProfiles.FirstOrDefault();
_profileSelectVM.Setup(authResult.AvailableProfiles, account.ProfileServer);
if (_windowManager.ShowDialog(_profileSelectVM) ?? false)
{
selectedProfile = _profileSelectVM.SelectedProfile;
}
account.Username = selectedProfile.Name;
account.UUID = selectedProfile.Id;
await _accountService.LoadSkinAsync(account);
GreetingVM.NotifyAccountChanged();
}
}
// Check authlib-injector if selected account is using external authentication
if (account.AuthMode == AuthMode.AuthLibInjector)
{
if (!_authlibInjectorService.CheckIntegrity(account.AuthlibInjectorSHA256))
{
// Authlib-Injector is missing or damaged
var latest = await _authlibInjectorService.GetLatest();
if (latest == null)
{
_statusVM.Status = LaunchStatus.Failed;
return;
}
var download = _authlibInjectorService.GetDownload(latest);
if (!await StartDownloadAsync(DownloadType.AuthlibInjector, download))
{
_statusVM.Status = LaunchStatus.Failed;
return;
}
account.AuthlibInjectorSHA256 = latest.SHA256;
}
account.PrefetchedAuthServerInfo =
await _authService.PrefetchAuthServerInfo(account.AuthServerBase);
if (account.PrefetchedAuthServerInfo == null)
{
_statusVM.Status = LaunchStatus.Failed;
return;
}
}
_statusVM.Status = LaunchStatus.ProcessingDependencies;
var launchVersion = _versionService.GetByID(_config.SelectedVersion);
// Check main jar and fix possible damage
if (!_versionService.CheckIntegrity(launchVersion))
{
var download = _versionService.GetDownload(launchVersion);
if (!await StartDownloadAsync(DownloadType.MainJar, download))
{
_statusVM.Status = LaunchStatus.Failed;
return;
}
}
// Check dependent libraries and fix possible damage
var damagedLibs = await _libraryService.CheckIntegrityAsync(launchVersion.Libraries);
if (damagedLibs.Any())
{
// For 1.13.2+ forge versions, there is no way to fix damaged forge jar unless reinstall
if (launchVersion.Type == VersionType.NewForge && damagedLibs.Any(
lib => lib.Type == LibraryType.ForgeMain
))
{
_windowManager.ShowMessageBox("${MainJarDamaged}\n${PleaseReinstallForge}", "${IntegrityCheck}",
MessageBoxButton.OK, MessageBoxImage.Error);
// Delete the damaged forge version (but retain the libraries)
// force user to reinstall it
await _versionService.DeleteFromDiskAsync(launchVersion.ID, false);
_statusVM.Status = LaunchStatus.Failed;
return;
}
var downloads = _libraryService.GetDownloads(damagedLibs);
if (!await StartDownloadAsync(DownloadType.Libraries, downloads))
{
_statusVM.Status = LaunchStatus.Failed;
return;
}
}
// Extract native libraries
_libraryService.ExtractNatives(launchVersion.Libraries.Where(lib => lib.Type == LibraryType.Native));
// Try loading assets
if (!_assetService.LoadAllObjects(launchVersion.AssetsInfo))
{
if (await _assetService.DownloadIndexJsonAsync(launchVersion.AssetsInfo))
{
// Successfully downloaded the missing index json, load assets
_assetService.LoadAllObjects(launchVersion.AssetsInfo);
}
// if index json download failed (what are the odds!), not gonna retry
// Prepare for enjoying a silent game XD
}
// Check assets and fix possible damage on user's discretion
var damagedAssets = await _assetService.CheckIntegrityAsync(launchVersion.AssetsInfo);
if ((damagedAssets?.Any() ?? false) &&
_windowManager.ShowMessageBox("${AssetsDamaged}\n${WhetherFixNow}", "${IntegrityCheck}",
MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes)
{
var downloads = _assetService.GetDownloads(damagedAssets);
await StartDownloadAsync(DownloadType.Assets, downloads);
}
// For legacy versions (1.7.2 or earlier), copy hashed asset objects to virtual files
if (launchVersion.AssetsInfo.IsLegacy)
{
await _assetService.CopyToVirtualAsync(launchVersion.AssetsInfo);
}
// All good to go, now build launch profile
var profile = new LaunchProfile
{
IsDebugMode = _config.JavaDebugMode,
JvmArgs = _config.JvmArgs,
MaxMemory = _config.JavaMaxMem,
Account = account,
VersionType = AssemblyUtil.Title,
WinWidth = _config.WindowWidth,
WinHeight = _config.WindowHeight,
IsFullScreen = _config.FullScreen,
ServerAddress = _config.ServerAddress,
ExtraArgs = _config.ExtraMinecraftArgs,
};
_statusVM.Status = LaunchStatus.StartingProcess;
void UpdateLogDisplay(string logMessage) => _statusVM.GameOutputLog = logMessage;
_launchService.LogReceived += UpdateLogDisplay;
if (!await _launchService.LaunchGameAsync(profile, launchVersion))
{
_statusVM.Status = LaunchStatus.Failed;
_launchService.LogReceived -= UpdateLogDisplay;
return;
}
_statusVM.Status = LaunchStatus.Running;
_launchService.LogReceived -= UpdateLogDisplay;
_statusVM.GameOutputLog = XD;
}