public static string FindGameInstallDirectoryFromSteam()
{
string registryKey;
// The registry key is different on 64-bit and 32-bit
if (Environment.Is64BitOperatingSystem)
{
registryKey = @"HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Valve\Steam";
}
else
{
registryKey = @"HKEY_LOCAL_MACHINE\SOFTWARE\Valve\Steam";
}
// Gets the path to the "Steam" folder
string steamInstallPath = Registry.GetValue(registryKey, "InstallPath", null) as string;
if (!string.IsNullOrEmpty(steamInstallPath) && Directory.Exists(steamInstallPath))
{
// The path to the "steamapps" folder
string steamappsPath = steamInstallPath + @"\steamapps";
string baseGameInstallDirectory = FindGameInstallDirectoryFromSteamapps(steamappsPath);
if (!string.IsNullOrEmpty(baseGameInstallDirectory))
{
return(baseGameInstallDirectory);
}
// The path to the "libraryfolders.vdf" file
string libraryFoldersFilePath = steamappsPath + @"\libraryfolders.vdf";
// This goes through all the different steam install directories the user has defined
if (File.Exists(libraryFoldersFilePath) && AcfParser.TryParseAcf(File.ReadAllLines(libraryFoldersFilePath), out AcfTree tree))
{
for (uint i = 1; i < uint.MaxValue; i++)
{
if (tree.TryGetChildWithKey(i.ToString(), out AcfNode node))
{
if (node is AcfValueNode valueNode)
{
string otherSteamAppsPath = valueNode.Value + @"\steamapps";
string otherGameInstallDirectory = FindGameInstallDirectoryFromSteamapps(otherSteamAppsPath);
if (!string.IsNullOrEmpty(otherGameInstallDirectory))
{
return(otherGameInstallDirectory);
}
}
}
else
{
break;
}
}
}
}
return(string.Empty);
}
public static string FindGameInstallDirectoryFromSteamapps(string steamappsFolder)
{
// Clone Drone's "appmanifest.acf" file
string appmanifestFilePath = steamappsFolder + @"\appmanifest_" + Constants.CLONE_DRONE_STEAMAPPID + ".acf";
if (File.Exists(appmanifestFilePath))
{
// Parse the .acf file
string[] appmanifestLines = File.ReadAllLines(appmanifestFilePath);
if (AcfParser.TryParseAcf(appmanifestLines, out AcfTree tree))
{
// Here we can also check if the user is on the experimental branch by getting the value of "UserConfig/betakey", if the value in that node is "experimental", then the user is on the experimental branch, otherwise, the value is an empty string
if (tree.TryGetNodeValue("installdir", out string installFolderName))
{
return(steamappsFolder + @"\common\" + installFolderName);
}
}
}
return(string.Empty);
}
