feat: add InputDeviceManager autoload for input device tracking

Autoloads/InputDeviceManager.cs

@@ -0,0 +1,50 @@
+using Godot;
+
+namespace Mr.BrickAdventures.Autoloads;
+
+public enum InputDevice { Mouse, Keyboard, Gamepad }
+
+public partial class InputDeviceManager : Node
+{
+    public static InputDeviceManager Instance { get; private set; }
+
+    public InputDevice CurrentDevice { get; private set; } = InputDevice.Mouse;
+
+    public bool IsPointerless => CurrentDevice is InputDevice.Keyboard or InputDevice.Gamepad;
+
+    [Signal] public delegate void DeviceChangedEventHandler(int device);
+
+    public override void _Ready()
+    {
+        Instance = this;
+        Input.MouseMode = Input.MouseModeEnum.Visible;
+    }
+
+    public override void _ExitTree()
+    {
+        if (Instance == this) Instance = null;
+    }
+
+    public override void _Input(InputEvent @event)
+    {
+        InputDevice detected;
+
+        if (@event is InputEventMouseMotion or InputEventMouseButton)
+            detected = InputDevice.Mouse;
+        else if (@event is InputEventKey)
+            detected = InputDevice.Keyboard;
+        else if (@event is InputEventJoypadButton or InputEventJoypadMotion)
+            detected = InputDevice.Gamepad;
+        else
+            return;
+
+        if (detected == CurrentDevice) return;
+
+        CurrentDevice = detected;
+        Input.MouseMode = CurrentDevice == InputDevice.Mouse
+            ? Input.MouseModeEnum.Visible
+            : Input.MouseModeEnum.Hidden;
+
+        EmitSignal(SignalName.DeviceChanged, (int)CurrentDevice);
+    }
+}

project.godot

@@ -38,6 +38,7 @@ AudioController="*res://objects/audio_controller.tscn"
 UIManager="*res://Autoloads/UIManager.cs"
 ConfigFileHandler="*res://Autoloads/ConfigFileHandler.cs"
 SettingsManager="*res://Autoloads/SettingsManager.cs"
+InputDeviceManager="*res://Autoloads/InputDeviceManager.cs"
 SaveSystem="*res://Autoloads/SaveSystem.cs"
 ConsoleManager="*res://Autoloads/ConsoleManager.cs"
 LimboConsole="*uid://dyxornv8vwibg"