Add hotkey to select random skin

osu.Game/Configuration/OsuConfigManager.cs

@@ -189,7 +189,7 @@ namespace osu.Game.Configuration
                 new TrackedSetting<int>(OsuSetting.Skin, m =>
                 {
                     string skinName = LookupSkinName(m) ?? string.Empty;
-                    return new SettingDescription(skinName, "skin", skinName);
+                    return new SettingDescription(skinName, "skin", skinName, $"random: {LookupKeyBindings(GlobalAction.RandomSkin)}");
                 })
             };
         }

osu.Game/Input/Bindings/GlobalActionContainer.cs

@@ -48,6 +48,8 @@ namespace osu.Game.Input.Bindings
             new KeyBinding(InputKey.Space, GlobalAction.Select),
             new KeyBinding(InputKey.Enter, GlobalAction.Select),
             new KeyBinding(InputKey.KeypadEnter, GlobalAction.Select),
+
+            new KeyBinding(new[] { InputKey.Control, InputKey.Shift, InputKey.R }, GlobalAction.RandomSkin),
         };
 
         public IEnumerable<KeyBinding> EditorKeyBindings => new[]
@@ -191,5 +193,8 @@ namespace osu.Game.Input.Bindings
 
         [Description("Hold for HUD")]
         HoldForHUD,
+
+        [Description("Random Skin")]
+        RandomSkin,
     }
 }

osu.Game/OsuGame.cs

@@ -887,6 +887,10 @@ namespace osu.Game
                 case GlobalAction.ToggleGameplayMouseButtons:
                     LocalConfig.Set(OsuSetting.MouseDisableButtons, !LocalConfig.Get<bool>(OsuSetting.MouseDisableButtons));
                     return true;
+
+                case GlobalAction.RandomSkin:
+                    SkinManager.SelectRandomSkin();
+                    return true;
             }
 
             return false;

osu.Game/Overlays/Settings/Sections/SkinSection.cs

@@ -9,7 +9,6 @@ using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
 using osu.Framework.Logging;
-using osu.Framework.Utils;
 using osu.Game.Configuration;
 using osu.Game.Graphics.UserInterface;
 using osu.Game.Skinning;
@@ -103,7 +102,7 @@ namespace osu.Game.Overlays.Settings.Sections
             {
                 if (skin.NewValue == random_skin_info)
                 {
-                    randomizeSkin();
+                    skins.SelectRandomSkin();
                     return;
                 }
 
@@ -111,20 +110,6 @@ namespace osu.Game.Overlays.Settings.Sections
             });
         }
 
-        private void randomizeSkin()
-        {
-            // choose from only user skins, removing the current selection to ensure a new one is chosen.
-            var randomChoices = skinItems.Where(s => s.ID > 0 && s.ID != configBindable.Value).ToArray();
-
-            if (randomChoices.Length == 0)
-            {
-                configBindable.Value = SkinInfo.Default.ID;
-                return;
-            }
-
-            configBindable.Value = randomChoices.ElementAt(RNG.Next(0, randomChoices.Length)).ID;
-        }
-
         private void updateItems()
         {
             skinItems = skins.GetAllUsableSkins();

osu.Game/Skinning/SkinManager.cs

@@ -19,6 +19,7 @@ using osu.Framework.Graphics.Textures;
 using osu.Framework.IO.Stores;
 using osu.Framework.Platform;
 using osu.Framework.Testing;
+using osu.Framework.Utils;
 using osu.Game.Audio;
 using osu.Game.Database;
 using osu.Game.IO.Archives;
@@ -87,6 +88,20 @@ namespace osu.Game.Skinning
         /// <returns>A newly allocated list of available <see cref="SkinInfo"/>.</returns>
         public List<SkinInfo> GetAllUserSkins() => ModelStore.ConsumableItems.Where(s => !s.DeletePending).ToList();
 
+        public void SelectRandomSkin()
+        {
+            // choose from only user skins, removing the current selection to ensure a new one is chosen.
+            var randomChoices = GetAllUsableSkins().Where(s => s.ID > 0 && s.ID != CurrentSkinInfo.Value.ID).ToArray();
+
+            if (randomChoices.Length == 0)
+            {
+                CurrentSkinInfo.Value = SkinInfo.Default;
+                return;
+            }
+
+            CurrentSkinInfo.Value = randomChoices.ElementAt(RNG.Next(0, randomChoices.Length));
+        }
+
         protected override SkinInfo CreateModel(ArchiveReader archive) => new SkinInfo { Name = archive.Name };
 
         private const string unknown_creator_string = "Unknown";