Hud Visibility

osu.Game/Configuration/OsuConfigManager.cs

@@ -36,6 +36,7 @@ namespace osu.Game.Configuration
             Set(OsuConfig.MenuParallax, true);
 
             Set(OsuConfig.KeyOverlay, false);
+            Set(OsuConfig.ShowInterface, true);
             //todo: implement all settings below this line (remove the Disabled set when doing so).
 
             Set(OsuConfig.MouseSpeed, 1.0).Disabled = true;
@@ -89,7 +90,6 @@ namespace osu.Game.Configuration
             Set(OsuConfig.LastVersionPermissionsFailed, string.Empty).Disabled = true;
             Set(OsuConfig.LoadSubmittedThread, true).Disabled = true;
             Set(OsuConfig.LobbyPlayMode, -1).Disabled = true;
-            Set(OsuConfig.ShowInterface, true).Disabled = true;
             Set(OsuConfig.ShowInterfaceDuringRelax, false).Disabled = true;
             Set(OsuConfig.LobbyShowExistingOnly, false).Disabled = true;
             Set(OsuConfig.LobbyShowFriendsOnly, false).Disabled = true;

osu.Game/Modes/UI/HudOverlay.cs

@@ -22,6 +22,9 @@ namespace osu.Game.Modes.UI
         public readonly HealthDisplay HealthDisplay;
 
         private Bindable<bool> showKeyCounter;
+        private Bindable<bool> showHud;
+
+        public bool IsVisible => showHud;
 
         protected abstract KeyCounterCollection CreateKeyCounter();
         protected abstract ComboCounter CreateComboCounter();
@@ -47,11 +50,15 @@ namespace osu.Game.Modes.UI
         private void load(OsuConfigManager config)
         {
             showKeyCounter = config.GetBindable<bool>(OsuConfig.KeyOverlay);
-            showKeyCounter.ValueChanged += visibilityChanged;
+            showKeyCounter.ValueChanged += keyCounterVisibilityChanged;
             showKeyCounter.TriggerChange();
+
+            showHud = config.GetBindable<bool>(OsuConfig.ShowInterface);
+            showHud.ValueChanged += hudVisibilityChanged;
+            showHud.TriggerChange();
         }
 
-        private void visibilityChanged(object sender, EventArgs e)
+        private void keyCounterVisibilityChanged(object sender, EventArgs e)
         {
             if (showKeyCounter)
                 KeyCounter.Show();
@@ -59,6 +66,19 @@ namespace osu.Game.Modes.UI
                 KeyCounter.Hide();
         }
 
+        private void hudVisibilityChanged(object sender, EventArgs e)
+        {
+            if (showHud)
+                Show();
+            else
+                Hide();
+        }
+
+        public void ChangeVisibility()
+        {
+            showHud.Value = !showHud.Value;
+        }
+
         public void BindProcessor(ScoreProcessor processor)
         {
             //bind processor bindables to combocounter, score display etc.

osu.Game/Overlays/Options/Sections/Gameplay/GeneralOptions.cs

@@ -39,6 +39,11 @@ namespace osu.Game.Overlays.Options.Sections.Gameplay
                     Bindable = (BindableDouble)config.GetBindable<double>(OsuConfig.ScoreMeterScale)
                 },
                 new OsuCheckbox
+                {
+                    LabelText = "Show score overlay",
+                    Bindable = config.GetBindable<bool>(OsuConfig.ShowInterface)
+                },
+                new OsuCheckbox
                 {
                     LabelText = "Always show key overlay",
                     Bindable = config.GetBindable<bool>(OsuConfig.KeyOverlay)

osu.Game/Screens/Play/Player.cs

@@ -22,6 +22,9 @@ using osu.Game.Screens.Ranking;
 using System;
 using System.Linq;
 using osu.Game.Modes.Scoring;
+using osu.Game.Overlays;
+using osu.Game.Overlays.Notifications;
+using OpenTK.Input;
 
 namespace osu.Game.Screens.Play
 {
@@ -59,8 +62,8 @@ namespace osu.Game.Screens.Play
         private HudOverlay hudOverlay;
         private PauseOverlay pauseOverlay;
 
-        [BackgroundDependencyLoader]
+        [BackgroundDependencyLoader(true)]
-        private void load(AudioManager audio, BeatmapDatabase beatmaps, OsuConfigManager config)
+        private void load(AudioManager audio, BeatmapDatabase beatmaps, OsuConfigManager config, NotificationManager notificationManager)
         {
             var beatmap = Beatmap.Beatmap;
 
@@ -158,6 +161,14 @@ namespace osu.Game.Screens.Play
                 hudOverlay,
                 pauseOverlay
             };
+
+            if (!hudOverlay.IsVisible)
+            {
+                notificationManager?.Post(new SimpleNotification
+                {
+                    Text = @"The score overlay is currently disabled. You can toogle this by pressing Shift + Tab."
+                });
+            }
         }
 
         private void initializeSkipButton()
@@ -333,5 +344,22 @@ namespace osu.Game.Screens.Play
         private Bindable<bool> mouseWheelDisabled;
 
         protected override bool OnWheel(InputState state) => mouseWheelDisabled.Value && !IsPaused;
+
+        protected override bool OnKeyDown(InputState state, KeyDownEventArgs args)
+        {
+            if (args.Repeat) return false;
+
+            if (state.Keyboard.ShiftPressed)
+            {
+                switch (args.Key)
+                {
+                    case Key.Tab:
+                        hudOverlay.ChangeVisibility();
+                        return true;
+                }
+            }
+
+            return base.OnKeyDown(state, args);
+        }
     }
 }