Game state manager and restored inventory

Scripts/Utils/GlobalInputManager.cs

@@ -0,0 +1,19 @@
+using Godot;
+
+namespace Cirno.Scripts.Utils;
+
+public partial class GlobalInputManager : Node
+{
+    public static GlobalInputManager Instance;
+    [Export] public StringName PauseActionName { get; private set; } = "pause";
+    
+    public static bool IsPauseJustPressed()
+    {
+        return Input.IsActionJustPressed(Instance.PauseActionName);
+    }
+
+    public override void _Ready()
+    {
+        Instance = this;
+    }
+}