first commit

NitroxModel/Platforms/Store/EpicGames.cs

@@ -0,0 +1,44 @@
+using System;
+using System.IO;
+using System.Threading.Tasks;
+using NitroxModel.Discovery.Models;
+using NitroxModel.Helper;
+using NitroxModel.Platforms.OS.Shared;
+using NitroxModel.Platforms.Store.Interfaces;
+
+namespace NitroxModel.Platforms.Store;
+
+public sealed class EpicGames : IGamePlatform
+{
+    public string Name => "Epic Games Store";
+    public Platform Platform => Platform.EPIC;
+
+    public bool OwnsGame(string gameDirectory)
+    {
+        string path = Path.Combine(gameDirectory, ".egstore");
+        return Directory.Exists(path) && Directory.GetFiles(path).Length > 1;
+    }
+
+    public async Task<ProcessEx> StartPlatformAsync()
+    {
+        await Task.CompletedTask; // Suppresses async-without-await warning - can be removed.
+        throw new NotImplementedException(); // Not necessary to implement unless EGS gets a game SDK and respective game integrates it.
+    }
+
+    public string GetExeFile()
+    {
+        throw new NotImplementedException();
+    }
+
+    public async Task<ProcessEx> StartGameAsync(string pathToGameExe, string launchArguments)
+    {
+        // Normally should call StartPlatformAsync first. But Subnautica will start without EGS.
+        return await Task.FromResult(
+            ProcessEx.Start(
+                pathToGameExe,
+                [(NitroxUser.LAUNCHER_PATH_ENV_KEY, NitroxUser.LauncherPath)],
+                Path.GetDirectoryName(pathToGameExe),
+                $"-EpicPortal {launchArguments}")
+        );
+    }
+}