refactor: extract shared MouseCapture helper

src/Godot/Bootstrap/GameBootstrap.cs

@@ -1,3 +1,4 @@
+using Game.Godot;
 using Game.Godot.Mappings;
 using Godot;
 
@@ -5,23 +6,16 @@ namespace Game.Godot.Bootstrap;
 
 public partial class GameBootstrap : Node
 {
-    private static void ToggleMouseCapture()
-    {
-        Input.MouseMode = Input.MouseMode == Input.MouseModeEnum.Captured
-            ? Input.MouseModeEnum.Visible
-            : Input.MouseModeEnum.Captured;
-    }
-
     public override void _Ready()
     {
-        Input.MouseMode = Input.MouseModeEnum.Captured;
+        MouseCapture.Capture();
     }
 
     public override void _UnhandledInput(InputEvent @event)
     {
         if (@event.IsActionPressed(InputAction.Cancel.ActionName()))
         {
-            ToggleMouseCapture();
+            MouseCapture.Toggle();
         }
     }
 }

src/Godot/MouseCapture.cs

@@ -0,0 +1,42 @@
+using Godot;
+
+namespace Game.Godot;
+
+public static class MouseCapture
+{
+    public static bool IsCaptured => Input.MouseMode == Input.MouseModeEnum.Captured;
+
+    public static void Capture() => Input.MouseMode = Input.MouseModeEnum.Captured;
+
+    public static void Release() => Input.MouseMode = Input.MouseModeEnum.Visible;
+
+    public static void Toggle()
+    {
+        if (IsCaptured)
+        {
+            Release();
+        }
+        else
+        {
+            Capture();
+        }
+    }
+
+    public static Memento SaveCaptureMode()
+    {
+        Memento memento = new(IsCaptured);
+        Release();
+        return memento;
+    }
+
+    public sealed class Memento(bool wasCaptured)
+    {
+        public void RestoreCaptureMode()
+        {
+            if (wasCaptured)
+            {
+                Capture();
+            }
+        }
+    }
+}

src/Godot/MouseCapture.cs.uid

@@ -0,0 +1 @@
+uid://dab3etxieot78