Again separate classes

osu.Game/Screens/Play/PauseOverlay.cs

@@ -0,0 +1,35 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System;
+using osu.Framework.Input;
+using osu.Game.Graphics;
+using OpenTK.Input;
+using osu.Framework.Graphics.Containers;
+using OpenTK.Graphics;
+
+namespace osu.Game.Screens.Play
+{
+    public class PauseOverlay : FailOverlay
+    {
+        public Action OnResume;
+
+        protected override bool OnKeyDown(InputState state, KeyDownEventArgs args)
+        {
+            if (args.Key == Key.Escape)
+            {
+                if (State == Visibility.Hidden) return false;
+                OnResume();
+                return true;
+            }
+
+            return base.OnKeyDown(state, args);
+        }
+
+        public PauseOverlay()
+        {
+            AddButton(@"Continue", Color4.Green, OnResume);
+        }
+    }
+}
+