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Make steam hook work with Unreal Engine games #283

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merged 2 commits into from
Jan 28, 2024
Merged

Make steam hook work with Unreal Engine games #283

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50d1d46
Make steam hook work with Unreal Engine games
AnimatedSwine37 Jan 28, 2024
96833b6
Note that UE Steam Hooks is a hack
AnimatedSwine37 Jan 28, 2024
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16 changes: 15 additions & 1 deletion source/Reloaded.Mod.Loader/Utilities/Steam/SteamHook.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@ public SteamHook(IReloadedHooks hooks, Logger logger, string applicationFolder)
{
_applicationFolder = applicationFolder;
var steamApiPath = Environment.Is64BitProcess ? Path.GetFullPath(SteamAPI64) : Path.GetFullPath(SteamAPI32);
if (!File.Exists(steamApiPath))
if (!File.Exists(steamApiPath) && !TryFindUnrealSteamApi(out steamApiPath))
return;

// Hook relevant functions
Expand All @@ -48,6 +48,20 @@ IHook<T> HookExportedFunction<T>(IntPtr libraryHandle, string functionName, T ha
}
}

// This is a hack and only applies to UE4 games (leaving as is until R3)
private bool TryFindUnrealSteamApi(out string steamApiPath)
{
steamApiPath = null;

// Assuming consistent folder structure is used for Unreal Engine games
var steamWorksPath = Path.Combine(_applicationFolder, @"..\..\..\Engine\Binaries\ThirdParty\SteamWorks");
if (!Directory.Exists(steamWorksPath))
return false;

steamApiPath = Directory.EnumerateFiles(steamWorksPath, "steam_api??.dll", SearchOption.AllDirectories).FirstOrDefault();
return steamApiPath != null;
}

private void DropSteamAppId(Logger logger)
{
try
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