Add core game components including ConfigFileHandler, GameManager, SaveSystem, and UIManager

Autoloads/SaveSystem.cs

@@ -0,0 +1,46 @@
+using Godot;
+using Godot.Collections;
+
+namespace Mr.BrickAdventures.Autoloads;
+
+public partial class SaveSystem : Node
+{
+    [Export] public string SavePath { get; set; } = "user://savegame.save";
+    [Export] public int Version { get; set; } = 1;
+
+    //private GM _gm;
+
+    public override void _Ready()
+    {
+        //_gm = GetNode<GM>("/root/GameManager");
+    }
+
+    public void SaveGame()
+    {
+        //TODO: Implement saving logic
+    }
+
+    public bool LoadGame()
+    {
+        //TODO: Implement loading logic
+        
+        if (!FileAccess.FileExists(SavePath))
+            return false;
+
+        using var file = FileAccess.Open(SavePath, FileAccess.ModeFlags.Read);
+        var saveDataObj = (Dictionary)file.GetVar();
+
+        if (saveDataObj.ContainsKey("version") && (int)saveDataObj["version"] != Version)
+        {
+            GD.Print($"Save file version mismatch. Expected: {Version}, Found: {saveDataObj["version"]}");
+            return false;
+        }
+
+        GD.Print("Game state loaded from: ", SavePath);
+        GD.Print("Player state: ", saveDataObj["player_state"]);
+
+        return true;
+    }
+    
+    public bool CheckSaveExists() => FileAccess.FileExists(SavePath);
+}