Change default save path on mac/linux/windows

Author: isadorasophia

src/Murder/Game.cs

@@ -876,9 +876,6 @@ private void SetTargetFps(int fps, float fixedUpdateFactor)
         /// </summary>
         protected virtual void ExitGame()
         {
-            _game?.OnExit();
-
-            Microsoft.Xna.Framework.Media.MediaPlayer.Stop();
             base.Exit();
         }
 
@@ -895,6 +892,7 @@ protected virtual void OnClose(object? sender, EventArgs e)
         {
             // right before the game itself closes.
             Haptics.ClearAll();
+            _game?.OnClose();
         }
     }
 }

src/Murder/IMurderGame.cs

@@ -54,7 +54,7 @@ public void OnSceneTransition() { }
         /// <summary>
         /// Called once the game exits.
         /// </summary>
-        public void OnExit() { }
+        public void OnClose() { }
 
         /// <summary>
         /// Creates save data for the game.

src/Murder/Utilities/Serialization/FileHelper.cs

@@ -79,14 +79,32 @@ public static string GetSaveBasePath(string gameName)
     {
         _osVersion ??= SDL2.SDL.SDL_GetPlatform();
 
-        if (_osVersion.Equals("Windows") || _osVersion.Equals("Mac OS X") ||
-            _osVersion.Equals("Linux") || _osVersion.Equals("FreeBSD") ||
-            _osVersion.Equals("OpenBSD") || _osVersion.Equals("NetBSD"))
+        if (_osVersion.Equals("Windows"))
         {
             return Path.Join(Environment.GetFolderPath(
                 Environment.SpecialFolder.LocalApplicationData), gameName);
         }
 
+        if (_osVersion.Equals("Mac OS X"))
+        {
+            return Path.Join(Environment.GetFolderPath(
+                Environment.SpecialFolder.ApplicationData), gameName);
+        }
+        
+        if (_osVersion.Equals("Linux") || _osVersion.Equals("FreeBSD") ||
+            _osVersion.Equals("OpenBSD") || _osVersion.Equals("NetBSD"))
+        {
+            if (Environment.GetEnvironmentVariable("XDG_DATA_HOME") is string dataPath)
+            {
+                return Path.Join(dataPath, gameName);
+            }
+
+            if (Environment.GetEnvironmentVariable("HOME") is string homePath)
+            {
+                return Path.Join(homePath, ".local", "share", gameName);
+            }
+        }
+
         return SDL2.SDL.SDL_GetPrefPath(null, gameName);
     }