public async Task <bool> LaunchGameAsync(LaunchProfile profile, Version version)
{
var startInfo = new ProcessStartInfo
{
FileName = profile.IsDebugMode ? _gamePathService.JavaPath : _gamePathService.JavawPath,
WorkingDirectory = _gamePathService.WorkingDir,
Arguments = BuildArguments(profile, version),
UseShellExecute = profile.IsDebugMode,
RedirectStandardOutput = !profile.IsDebugMode,
RedirectStandardError = !profile.IsDebugMode,
};
_gameProcess = Process.Start(startInfo);
_gameProcess.EnableRaisingEvents = true;
_gameProcess.Exited += (s, e) => Exited?.Invoke(_gameProcess.ExitCode);
if (!profile.IsDebugMode)
{
_gameProcess.ErrorDataReceived += (s, e) => ErrorReceived?.Invoke(e.Data);
_gameProcess.BeginErrorReadLine();
_gameProcess.OutputDataReceived += (s, e) => LogReceived?.Invoke(e.Data);
_gameProcess.BeginOutputReadLine();
if (!_gameProcess.HasExited)
{
await Task.Run(() => _gameProcess.WaitForInputIdle());
}
}
return(!_gameProcess.HasExited);
}
private string BuildArguments(LaunchProfile profile, Version version)
{
var builder = new StringBuilder(8192);
// User defined JVM arguments
if (!string.IsNullOrWhiteSpace(profile.JvmArgs))
{
builder.Append(profile.JvmArgs).Append(' ');
}
else
{
// Configure GC
builder.Append("-XX:+UnlockExperimentalVMOptions ");
builder.Append("-XX:+UseG1GC ");
builder.Append("-XX:G1NewSizePercent=20 ");
builder.Append("-XX:G1ReservePercent=20 ");
builder.Append("-XX:MaxGCPauseMillis=48 ");
builder.Append("-XX:+ParallelRefProcEnabled ");
builder.Append("-XX:G1HeapRegionSize=32M ");
builder.Append("-XX:-UseAdaptiveSizePolicy ");
builder.Append("-XX:-OmitStackTraceInFastThrow ");
}
// Max Memory
builder.Append($"-Xmx{profile.MaxMemory}M ");
// Arguments for Forge
builder.Append("-Dfml.ignoreInvalidMinecraftCertificates=true ");
builder.Append("-Dfml.ignorePatchDiscrepancies=true ");
// WHAT THE HELL is this ???
builder.Append("-XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump ");
// Natives
builder.Append($"-Djava.library.path=\"{_gamePathService.NativesDir}\" ");
// Launcher Identifier
builder.Append($"-Dminecraft.launcher.brand={AssemblyUtil.Title} ");
builder.Append($"-Dminecraft.launcher.version={AssemblyUtil.Version} ");
// Libraries
builder.Append("-cp \"");
foreach (var lib in version.Libraries)
{
if (lib.Type == LibraryType.Native)
{
continue;
}
builder.Append($"{_gamePathService.LibrariesDir}/{lib.Path};");
}
// Main Jar
builder.Append($"{_gamePathService.VersionsDir}/{version.JarID}/{version.JarID}.jar\" ");
// Authlib-Injector
if (profile.Account.AuthMode == AuthMode.AuthLibInjector)
{
builder.Append(
$"-javaagent:\"{_gamePathService.RootDir}/authlib-injector.jar\"={profile.Account.AuthServerBase} ");
builder.Append("-Dauthlibinjector.side=client ");
builder.Append("-Dauthlibinjector.yggdrasil.prefetched=");
builder.Append(profile.Account.PrefetchedAuthServerInfo);
builder.Append(' ');
}
// Main Class
builder.Append(version.MainClass).Append(' ');
// Minecraft Arguments
var argsDict = version.MinecarftArgsDict;
argsDict["--username"] = '******' + profile.Account.Username + '\"';
argsDict["--version"] = '\"' + version.ID + '\"';
argsDict["--gameDir"] = '\"' + _gamePathService.WorkingDir + '\"';
if (version.AssetsInfo.IsLegacy)
{
argsDict["--assetsDir"] = _gamePathService.AssetsDir + "/virtual/legacy";
}
else
{
argsDict["--assetsDir"] = '\"' + _gamePathService.AssetsDir + '\"';
argsDict["--assetIndex"] = version.AssetsInfo.ID;
}
if (argsDict.ContainsKey("--uuid"))
{
argsDict["--uuid"] = profile.Account.UUID;
}
if (argsDict.ContainsKey("--accessToken"))
{
argsDict["--accessToken"] = profile.Account.AccessToken;
}
if (argsDict.ContainsKey("--session"))
{
argsDict["--session"] = profile.Account.AccessToken;
}
if (argsDict.ContainsKey("--userType"))
{
argsDict["--userType"] = "mojang";
}
if (argsDict.ContainsKey("--versionType"))
{
argsDict["--versionType"] = profile.VersionType;
}
if (argsDict.ContainsKey("--userProperties"))
{
argsDict["--userProperties"] = "{}";
}
string args = string.Join(" ", argsDict.Select(pair => pair.Key + ' ' + pair.Value));
builder.Append(args).Append(' ');
// Server Login
if (!string.IsNullOrWhiteSpace(profile.ServerAddress))
{
string[] temp = profile.ServerAddress.Split(':');
builder.Append("--server " + temp[0]).Append(' ');
if (temp.Length == 2)
{
builder.Append("--port " + temp[1]).Append(' ');
}
}
// Full Screen
if (profile.IsFullScreen)
{
builder.Append("--fullscreen ");
}
// Window Size
if (profile.WinWidth != 0 && profile.WinHeight != 0)
{
builder.Append($"--width {profile.WinWidth} --height {profile.WinHeight}");
}
// Additional Arguments
if (!string.IsNullOrWhiteSpace(profile.ExtraArgs))
{
builder.Append(' ').Append(profile.ExtraArgs);
}
Debug.WriteLine(builder.ToString());
// Build Complete
return(builder.ToString());
}
