Merge branch 'master' into AddApproachCircleMod

osu.Game.Rulesets.Osu/Mods/OsuModAutopilot.cs

@@ -22,13 +22,16 @@ namespace osu.Game.Rulesets.Osu.Mods
         public override ModType Type => ModType.Automation;
         public override string Description => @"Automatic cursor movement - just follow the rhythm.";
         public override double ScoreMultiplier => 1;
-        public override Type[] IncompatibleMods => new[] { typeof(OsuModSpunOut), typeof(ModRelax), typeof(ModSuddenDeath), typeof(ModNoFail), typeof(ModAutoplay) };
+        public override Type[] IncompatibleMods => new[] { typeof(OsuModSpunOut), typeof(ModRelax), typeof(ModFailCondition), typeof(ModNoFail), typeof(ModAutoplay) };
+
+        public bool PerformFail() => false;
 
-        public bool AllowFail => false;
         public bool RestartOnFail => false;
 
         private OsuInputManager inputManager;
 
+        private IFrameStableClock gameplayClock;
+
         private List<OsuReplayFrame> replayFrames;
 
         private int currentFrame;
@@ -37,7 +40,7 @@ namespace osu.Game.Rulesets.Osu.Mods
         {
             if (currentFrame == replayFrames.Count - 1) return;
 
-            double time = playfield.Time.Current;
+            double time = gameplayClock.CurrentTime;
 
             // Very naive implementation of autopilot based on proximity to replay frames.
             // TODO: this needs to be based on user interactions to better match stable (pausing until judgement is registered).
@@ -52,12 +55,14 @@ namespace osu.Game.Rulesets.Osu.Mods
 
         public void ApplyToDrawableRuleset(DrawableRuleset<OsuHitObject> drawableRuleset)
         {
+            gameplayClock = drawableRuleset.FrameStableClock;
+
             // Grab the input manager to disable the user's cursor, and for future use
             inputManager = (OsuInputManager)drawableRuleset.KeyBindingInputManager;
             inputManager.AllowUserCursorMovement = false;
 
             // Generate the replay frames the cursor should follow
-            replayFrames = new OsuAutoGenerator(drawableRuleset.Beatmap).Generate().Frames.Cast<OsuReplayFrame>().ToList();
+            replayFrames = new OsuAutoGenerator(drawableRuleset.Beatmap, drawableRuleset.Mods).Generate().Frames.Cast<OsuReplayFrame>().ToList();
         }
     }
 }

osu.Game.Rulesets.Osu/Mods/OsuModAutoplay.cs

@@ -2,24 +2,24 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
+using System.Collections.Generic;
 using System.Linq;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Mods;
-using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Osu.Replays;
 using osu.Game.Scoring;
 using osu.Game.Users;
 
 namespace osu.Game.Rulesets.Osu.Mods
 {
-    public class OsuModAutoplay : ModAutoplay<OsuHitObject>
+    public class OsuModAutoplay : ModAutoplay
     {
         public override Type[] IncompatibleMods => base.IncompatibleMods.Append(typeof(OsuModAutopilot)).Append(typeof(OsuModSpunOut)).ToArray();
 
-        public override Score CreateReplayScore(IBeatmap beatmap) => new Score
+        public override Score CreateReplayScore(IBeatmap beatmap, IReadOnlyList<Mod> mods) => new Score
         {
             ScoreInfo = new ScoreInfo { User = new User { Username = "Autoplay" } },
-            Replay = new OsuAutoGenerator(beatmap).Generate()
+            Replay = new OsuAutoGenerator(beatmap, mods).Generate()
         };
     }
 }

osu.Game.Rulesets.Osu/Mods/OsuModBarrelRoll.cs

@@ -0,0 +1,30 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System.Collections.Generic;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.Objects.Drawables;
+using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Rulesets.Osu.Objects.Drawables;
+
+namespace osu.Game.Rulesets.Osu.Mods
+{
+    public class OsuModBarrelRoll : ModBarrelRoll<OsuHitObject>, IApplicableToDrawableHitObjects
+    {
+        public void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
+        {
+            foreach (var d in drawables)
+            {
+                d.OnUpdate += _ =>
+                {
+                    switch (d)
+                    {
+                        case DrawableHitCircle circle:
+                            circle.CirclePiece.Rotation = -CurrentRotation;
+                            break;
+                    }
+                };
+            }
+        }
+    }
+}

osu.Game.Rulesets.Osu/Mods/OsuModBlinds.cs

@@ -27,8 +27,6 @@ namespace osu.Game.Rulesets.Osu.Mods
         public override IconUsage? Icon => FontAwesome.Solid.Adjust;
         public override ModType Type => ModType.DifficultyIncrease;
 
-        public override bool Ranked => false;
-
         public override double ScoreMultiplier => 1.12;
         private DrawableOsuBlinds blinds;
 
@@ -64,8 +62,8 @@ namespace osu.Game.Rulesets.Osu.Mods
             /// </summary>
             private const float target_clamp = 1;
 
-            private readonly float targetBreakMultiplier = 0;
-            private readonly float easing = 1;
+            private readonly float targetBreakMultiplier;
+            private readonly float easing;
 
             private readonly CompositeDrawable restrictTo;
 
@@ -86,6 +84,9 @@ namespace osu.Game.Rulesets.Osu.Mods
             {
                 this.restrictTo = restrictTo;
                 this.beatmap = beatmap;
+
+                targetBreakMultiplier = 0;
+                easing = 1;
             }
 
             [BackgroundDependencyLoader]

osu.Game.Rulesets.Osu/Mods/OsuModCinema.cs

@@ -2,6 +2,7 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
+using System.Collections.Generic;
 using System.Linq;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Mods;
@@ -16,10 +17,10 @@ namespace osu.Game.Rulesets.Osu.Mods
     {
         public override Type[] IncompatibleMods => base.IncompatibleMods.Append(typeof(OsuModAutopilot)).Append(typeof(OsuModSpunOut)).ToArray();
 
-        public override Score CreateReplayScore(IBeatmap beatmap) => new Score
+        public override Score CreateReplayScore(IBeatmap beatmap, IReadOnlyList<Mod> mods) => new Score
         {
             ScoreInfo = new ScoreInfo { User = new User { Username = "Autoplay" } },
-            Replay = new OsuAutoGenerator(beatmap).Generate()
+            Replay = new OsuAutoGenerator(beatmap, mods).Generate()
         };
     }
 }

osu.Game.Rulesets.Osu/Mods/OsuModClassic.cs

@@ -0,0 +1,78 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System.Collections.Generic;
+using System.Linq;
+using osu.Framework.Bindables;
+using osu.Game.Configuration;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Objects.Drawables;
+using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Rulesets.Osu.Objects.Drawables;
+using osu.Game.Rulesets.Osu.UI;
+using osu.Game.Rulesets.UI;
+
+namespace osu.Game.Rulesets.Osu.Mods
+{
+    public class OsuModClassic : ModClassic, IApplicableToHitObject, IApplicableToDrawableHitObjects, IApplicableToDrawableRuleset<OsuHitObject>
+    {
+        [SettingSource("No slider head accuracy requirement", "Scores sliders proportionally to the number of ticks hit.")]
+        public Bindable<bool> NoSliderHeadAccuracy { get; } = new BindableBool(true);
+
+        [SettingSource("No slider head movement", "Pins slider heads at their starting position, regardless of time.")]
+        public Bindable<bool> NoSliderHeadMovement { get; } = new BindableBool(true);
+
+        [SettingSource("Apply classic note lock", "Applies note lock to the full hit window.")]
+        public Bindable<bool> ClassicNoteLock { get; } = new BindableBool(true);
+
+        [SettingSource("Use fixed slider follow circle hit area", "Makes the slider follow circle track its final size at all times.")]
+        public Bindable<bool> FixedFollowCircleHitArea { get; } = new BindableBool(true);
+
+        [SettingSource("Always play a slider's tail sample", "Always plays a slider's tail sample regardless of whether it was hit or not.")]
+        public Bindable<bool> AlwaysPlayTailSample { get; } = new BindableBool(true);
+
+        public void ApplyToHitObject(HitObject hitObject)
+        {
+            switch (hitObject)
+            {
+                case Slider slider:
+                    slider.OnlyJudgeNestedObjects = !NoSliderHeadAccuracy.Value;
+
+                    foreach (var head in slider.NestedHitObjects.OfType<SliderHeadCircle>())
+                        head.JudgeAsNormalHitCircle = !NoSliderHeadAccuracy.Value;
+
+                    break;
+            }
+        }
+
+        public void ApplyToDrawableRuleset(DrawableRuleset<OsuHitObject> drawableRuleset)
+        {
+            var osuRuleset = (DrawableOsuRuleset)drawableRuleset;
+
+            if (ClassicNoteLock.Value)
+                osuRuleset.Playfield.HitPolicy = new ObjectOrderedHitPolicy();
+        }
+
+        public void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
+        {
+            foreach (var obj in drawables)
+            {
+                switch (obj)
+                {
+                    case DrawableSlider slider:
+                        slider.Ball.InputTracksVisualSize = !FixedFollowCircleHitArea.Value;
+                        break;
+
+                    case DrawableSliderHead head:
+                        head.TrackFollowCircle = !NoSliderHeadMovement.Value;
+                        break;
+
+                    case DrawableSliderTail tail:
+                        tail.SamplePlaysOnlyOnHit = !AlwaysPlayTailSample.Value;
+                        break;
+                }
+            }
+        }
+    }
+}

osu.Game.Rulesets.Osu/Mods/OsuModDeflate.cs

@@ -1,7 +1,9 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using osu.Framework.Bindables;
 using osu.Framework.Graphics.Sprites;
+using osu.Game.Configuration;
 
 namespace osu.Game.Rulesets.Osu.Mods
 {
@@ -15,6 +17,14 @@ namespace osu.Game.Rulesets.Osu.Mods
 
         public override string Description => "Hit them at the right size!";
 
-        protected override float StartScale => 2f;
+        [SettingSource("Starting Size", "The initial size multiplier applied to all objects.")]
+        public override BindableNumber<float> StartScale { get; } = new BindableFloat
+        {
+            MinValue = 1f,
+            MaxValue = 25f,
+            Default = 2f,
+            Value = 2f,
+            Precision = 0.1f,
+        };
     }
 }

osu.Game.Rulesets.Osu/Mods/OsuModDifficultyAdjust.cs

@@ -1,6 +1,7 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using System.Linq;
 using osu.Framework.Bindables;
 using osu.Game.Beatmaps;
 using osu.Game.Configuration;
@@ -11,25 +12,49 @@ namespace osu.Game.Rulesets.Osu.Mods
     public class OsuModDifficultyAdjust : ModDifficultyAdjust
     {
         [SettingSource("Circle Size", "Override a beatmap's set CS.", FIRST_SETTING_ORDER - 1)]
-        public BindableNumber<float> CircleSize { get; } = new BindableFloat
+        public BindableNumber<float> CircleSize { get; } = new BindableFloatWithLimitExtension
         {
             Precision = 0.1f,
-            MinValue = 1,
+            MinValue = 0,
             MaxValue = 10,
             Default = 5,
             Value = 5,
         };
 
         [SettingSource("Approach Rate", "Override a beatmap's set AR.", LAST_SETTING_ORDER + 1)]
-        public BindableNumber<float> ApproachRate { get; } = new BindableFloat
+        public BindableNumber<float> ApproachRate { get; } = new BindableFloatWithLimitExtension
         {
             Precision = 0.1f,
-            MinValue = 1,
+            MinValue = 0,
             MaxValue = 10,
             Default = 5,
             Value = 5,
         };
 
+        protected override void ApplyLimits(bool extended)
+        {
+            base.ApplyLimits(extended);
+
+            CircleSize.MaxValue = extended ? 11 : 10;
+            ApproachRate.MaxValue = extended ? 11 : 10;
+        }
+
+        public override string SettingDescription
+        {
+            get
+            {
+                string circleSize = CircleSize.IsDefault ? string.Empty : $"CS {CircleSize.Value:N1}";
+                string approachRate = ApproachRate.IsDefault ? string.Empty : $"AR {ApproachRate.Value:N1}";
+
+                return string.Join(", ", new[]
+                {
+                    circleSize,
+                    base.SettingDescription,
+                    approachRate
+                }.Where(s => !string.IsNullOrEmpty(s)));
+            }
+        }
+
         protected override void TransferSettings(BeatmapDifficulty difficulty)
         {
             base.TransferSettings(difficulty);
@@ -42,8 +67,8 @@ namespace osu.Game.Rulesets.Osu.Mods
         {
             base.ApplySettings(difficulty);
 
-            difficulty.CircleSize = CircleSize.Value;
-            difficulty.ApproachRate = ApproachRate.Value;
+            ApplySetting(CircleSize, cs => difficulty.CircleSize = cs);
+            ApplySetting(ApproachRate, ar => difficulty.ApproachRate = ar);
         }
     }
 }

osu.Game.Rulesets.Osu/Mods/OsuModEasy.cs

@@ -5,7 +5,7 @@ using osu.Game.Rulesets.Mods;
 
 namespace osu.Game.Rulesets.Osu.Mods
 {
-    public class OsuModEasy : ModEasy
+    public class OsuModEasy : ModEasyWithExtraLives
     {
         public override string Description => @"Larger circles, more forgiving HP drain, less accuracy required, and three lives!";
     }

osu.Game.Rulesets.Osu/Mods/OsuModFlashlight.cs

@@ -9,10 +9,12 @@ using osu.Framework.Graphics;
 using osu.Framework.Input;
 using osu.Framework.Input.Events;
 using osu.Framework.Utils;
+using osu.Game.Configuration;
 using osu.Game.Rulesets.Mods;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Osu.Objects.Drawables;
+using osu.Game.Rulesets.UI;
 using osuTK;
 
 namespace osu.Game.Rulesets.Osu.Mods
@@ -23,6 +25,8 @@ namespace osu.Game.Rulesets.Osu.Mods
 
         private const float default_flashlight_size = 180;
 
+        private const double default_follow_delay = 120;
+
         private OsuFlashlight flashlight;
 
         public override Flashlight CreateFlashlight() => flashlight = new OsuFlashlight();
@@ -35,8 +39,25 @@ namespace osu.Game.Rulesets.Osu.Mods
             }
         }
 
+        public override void ApplyToDrawableRuleset(DrawableRuleset<OsuHitObject> drawableRuleset)
+        {
+            base.ApplyToDrawableRuleset(drawableRuleset);
+
+            flashlight.FollowDelay = FollowDelay.Value;
+        }
+
+        [SettingSource("Follow delay", "Milliseconds until the flashlight reaches the cursor")]
+        public BindableNumber<double> FollowDelay { get; } = new BindableDouble(default_follow_delay)
+        {
+            MinValue = default_follow_delay,
+            MaxValue = default_follow_delay * 10,
+            Precision = default_follow_delay,
+        };
+
         private class OsuFlashlight : Flashlight, IRequireHighFrequencyMousePosition
         {
+            public double FollowDelay { private get; set; }
+
             public OsuFlashlight()
             {
                 FlashlightSize = new Vector2(0, getSizeFor(0));
@@ -50,13 +71,11 @@ namespace osu.Game.Rulesets.Osu.Mods
 
             protected override bool OnMouseMove(MouseMoveEvent e)
             {
-                const double follow_delay = 120;
-
                 var position = FlashlightPosition;
                 var destination = e.MousePosition;
 
                 FlashlightPosition = Interpolation.ValueAt(
-                    Math.Clamp(Clock.ElapsedFrameTime, 0, follow_delay), position, destination, 0, follow_delay, Easing.Out);
+                    Math.Min(Math.Abs(Clock.ElapsedFrameTime), FollowDelay), position, destination, 0, FollowDelay, Easing.Out);
 
                 return base.OnMouseMove(e);
             }

osu.Game.Rulesets.Osu/Mods/OsuModGrow.cs

@@ -1,7 +1,9 @@
 // Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
 // See the LICENCE file in the repository root for full licence text.
 
+using osu.Framework.Bindables;
 using osu.Framework.Graphics.Sprites;
+using osu.Game.Configuration;
 
 namespace osu.Game.Rulesets.Osu.Mods
 {
@@ -15,6 +17,14 @@ namespace osu.Game.Rulesets.Osu.Mods
 
         public override string Description => "Hit them at the right size!";
 
-        protected override float StartScale => 0.5f;
+        [SettingSource("Starting Size", "The initial size multiplier applied to all objects.")]
+        public override BindableNumber<float> StartScale { get; } = new BindableFloat
+        {
+            MinValue = 0f,
+            MaxValue = 0.99f,
+            Default = 0.5f,
+            Value = 0.5f,
+            Precision = 0.01f,
+        };
     }
 }

osu.Game.Rulesets.Osu/Mods/OsuModHardRock.cs

@@ -14,7 +14,6 @@ namespace osu.Game.Rulesets.Osu.Mods
     public class OsuModHardRock : ModHardRock, IApplicableToHitObject
     {
         public override double ScoreMultiplier => 1.06;
-        public override bool Ranked => true;
 
         public void ApplyToHitObject(HitObject hitObject)
         {
@@ -26,10 +25,13 @@ namespace osu.Game.Rulesets.Osu.Mods
                 return;
 
             slider.NestedHitObjects.OfType<SliderTick>().ForEach(h => h.Position = new Vector2(h.Position.X, OsuPlayfield.BASE_SIZE.Y - h.Position.Y));
-            slider.NestedHitObjects.OfType<RepeatPoint>().ForEach(h => h.Position = new Vector2(h.Position.X, OsuPlayfield.BASE_SIZE.Y - h.Position.Y));
+            slider.NestedHitObjects.OfType<SliderRepeat>().ForEach(h => h.Position = new Vector2(h.Position.X, OsuPlayfield.BASE_SIZE.Y - h.Position.Y));
 
-            foreach (var point in slider.Path.ControlPoints)
+            var controlPoints = slider.Path.ControlPoints.Select(p => new PathControlPoint(p.Position.Value, p.Type.Value)).ToArray();
+            foreach (var point in controlPoints)
                 point.Position.Value = new Vector2(point.Position.Value.X, -point.Position.Value.Y);
+
+            slider.Path = new SliderPath(controlPoints, slider.Path.ExpectedDistance.Value);
         }
     }
 }

osu.Game.Rulesets.Osu/Mods/OsuModHidden.cs

@@ -2,9 +2,10 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
-using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using osu.Framework.Graphics;
+using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Mods;
 using osu.Game.Rulesets.Objects;
 using osu.Game.Rulesets.Objects.Drawables;
@@ -23,72 +24,141 @@ namespace osu.Game.Rulesets.Osu.Mods
         private const double fade_in_duration_multiplier = 0.4;
         private const double fade_out_duration_multiplier = 0.3;
 
-        public override void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
+        protected override bool IsFirstAdjustableObject(HitObject hitObject) => !(hitObject is Spinner || hitObject is SpinnerTick);
+
+        public override void ApplyToBeatmap(IBeatmap beatmap)
         {
-            static void adjustFadeIn(OsuHitObject h) => h.TimeFadeIn = h.TimePreempt * fade_in_duration_multiplier;
+            base.ApplyToBeatmap(beatmap);
 
-            foreach (var d in drawables.OfType<DrawableOsuHitObject>())
+            foreach (var obj in beatmap.HitObjects.OfType<OsuHitObject>())
+                applyFadeInAdjustment(obj);
+
+            static void applyFadeInAdjustment(OsuHitObject osuObject)
             {
-                adjustFadeIn(d.HitObject);
-                foreach (var h in d.HitObject.NestedHitObjects.OfType<OsuHitObject>())
-                    adjustFadeIn(h);
+                osuObject.TimeFadeIn = osuObject.TimePreempt * fade_in_duration_multiplier;
+                foreach (var nested in osuObject.NestedHitObjects.OfType<OsuHitObject>())
+                    applyFadeInAdjustment(nested);
             }
-
-            base.ApplyToDrawableHitObjects(drawables);
         }
 
-        protected override void ApplyHiddenState(DrawableHitObject drawable, ArmedState state)
+        protected override void ApplyIncreasedVisibilityState(DrawableHitObject hitObject, ArmedState state)
         {
-            if (!(drawable is DrawableOsuHitObject d))
+            applyState(hitObject, true);
+        }
+
+        protected override void ApplyNormalVisibilityState(DrawableHitObject hitObject, ArmedState state)
+        {
+            applyState(hitObject, false);
+        }
+
+        private void applyState(DrawableHitObject drawableObject, bool increaseVisibility)
+        {
+            if (!(drawableObject is DrawableOsuHitObject drawableOsuObject))
                 return;
 
-            var h = d.HitObject;
+            OsuHitObject hitObject = drawableOsuObject.HitObject;
 
-            var fadeOutStartTime = h.StartTime - h.TimePreempt + h.TimeFadeIn;
-            var fadeOutDuration = h.TimePreempt * fade_out_duration_multiplier;
+            (double fadeStartTime, double fadeDuration) = getFadeOutParameters(drawableOsuObject);
 
-            // new duration from completed fade in to end (before fading out)
-            var longFadeDuration = h.GetEndTime() - fadeOutStartTime;
-
-            switch (drawable)
+            switch (drawableObject)
             {
-                case DrawableHitCircle circle:
-                    // we don't want to see the approach circle
-                    using (circle.BeginAbsoluteSequence(h.StartTime - h.TimePreempt, true))
-                        circle.ApproachCircle.Hide();
-
-                    // fade out immediately after fade in.
-                    using (drawable.BeginAbsoluteSequence(fadeOutStartTime, true))
-                        circle.FadeOut(fadeOutDuration);
+                case DrawableSliderTail _:
+                    using (drawableObject.BeginAbsoluteSequence(fadeStartTime))
+                        drawableObject.FadeOut(fadeDuration);
 
                     break;
 
+                case DrawableSliderRepeat sliderRepeat:
+                    using (drawableObject.BeginAbsoluteSequence(fadeStartTime))
+                        // only apply to circle piece – reverse arrow is not affected by hidden.
+                        sliderRepeat.CirclePiece.FadeOut(fadeDuration);
+
+                    break;
+
+                case DrawableHitCircle circle:
+                    Drawable fadeTarget = circle;
+
+                    if (increaseVisibility)
+                    {
+                        // only fade the circle piece (not the approach circle) for the increased visibility object.
+                        fadeTarget = circle.CirclePiece;
+                    }
+                    else
+                    {
+                        // we don't want to see the approach circle
+                        using (circle.BeginAbsoluteSequence(hitObject.StartTime - hitObject.TimePreempt))
+                            circle.ApproachCircle.Hide();
+                    }
+
+                    using (drawableObject.BeginAbsoluteSequence(fadeStartTime))
+                        fadeTarget.FadeOut(fadeDuration);
+                    break;
+
                 case DrawableSlider slider:
-                    using (slider.BeginAbsoluteSequence(fadeOutStartTime, true))
-                        slider.Body.FadeOut(longFadeDuration, Easing.Out);
+                    using (slider.BeginAbsoluteSequence(fadeStartTime))
+                        slider.Body.FadeOut(fadeDuration, Easing.Out);
 
                     break;
 
                 case DrawableSliderTick sliderTick:
-                    // slider ticks fade out over up to one second
-                    var tickFadeOutDuration = Math.Min(sliderTick.HitObject.TimePreempt - DrawableSliderTick.ANIM_DURATION, 1000);
-
-                    using (sliderTick.BeginAbsoluteSequence(sliderTick.HitObject.StartTime - tickFadeOutDuration, true))
-                        sliderTick.FadeOut(tickFadeOutDuration);
+                    using (sliderTick.BeginAbsoluteSequence(fadeStartTime))
+                        sliderTick.FadeOut(fadeDuration);
 
                     break;
 
                 case DrawableSpinner spinner:
                     // hide elements we don't care about.
-                    spinner.Disc.Hide();
-                    spinner.Ticks.Hide();
-                    spinner.Background.Hide();
+                    // todo: hide background
 
-                    using (spinner.BeginAbsoluteSequence(fadeOutStartTime + longFadeDuration, true))
-                        spinner.FadeOut(fadeOutDuration);
+                    using (spinner.BeginAbsoluteSequence(fadeStartTime))
+                        spinner.FadeOut(fadeDuration);
 
                     break;
             }
         }
+
+        private (double fadeStartTime, double fadeDuration) getFadeOutParameters(DrawableOsuHitObject drawableObject)
+        {
+            switch (drawableObject)
+            {
+                case DrawableSliderTail tail:
+                    // Use the same fade sequence as the slider head.
+                    Debug.Assert(tail.Slider != null);
+                    return getParameters(tail.Slider.HeadCircle);
+
+                case DrawableSliderRepeat repeat:
+                    // Use the same fade sequence as the slider head.
+                    Debug.Assert(repeat.Slider != null);
+                    return getParameters(repeat.Slider.HeadCircle);
+
+                default:
+                    return getParameters(drawableObject.HitObject);
+            }
+
+            static (double fadeStartTime, double fadeDuration) getParameters(OsuHitObject hitObject)
+            {
+                var fadeOutStartTime = hitObject.StartTime - hitObject.TimePreempt + hitObject.TimeFadeIn;
+                var fadeOutDuration = hitObject.TimePreempt * fade_out_duration_multiplier;
+
+                // new duration from completed fade in to end (before fading out)
+                var longFadeDuration = hitObject.GetEndTime() - fadeOutStartTime;
+
+                switch (hitObject)
+                {
+                    case Slider _:
+                        return (fadeOutStartTime, longFadeDuration);
+
+                    case SliderTick _:
+                        var tickFadeOutDuration = Math.Min(hitObject.TimePreempt - DrawableSliderTick.ANIM_DURATION, 1000);
+                        return (hitObject.StartTime - tickFadeOutDuration, tickFadeOutDuration);
+
+                    case Spinner _:
+                        return (fadeOutStartTime + longFadeDuration, fadeOutDuration);
+
+                    default:
+                        return (fadeOutStartTime, fadeOutDuration);
+                }
+            }
+        }
     }
 }

osu.Game.Rulesets.Osu/Mods/OsuModObjectScaleTween.cs

@@ -2,11 +2,8 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
-using System.Collections.Generic;
-using System.Linq;
 using osu.Framework.Bindables;
 using osu.Framework.Graphics;
-using osu.Game.Configuration;
 using osu.Game.Rulesets.Mods;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Osu.Objects;
@@ -17,43 +14,29 @@ namespace osu.Game.Rulesets.Osu.Mods
     /// <summary>
     /// Adjusts the size of hit objects during their fade in animation.
     /// </summary>
-    public abstract class OsuModObjectScaleTween : Mod, IReadFromConfig, IApplicableToDrawableHitObjects
+    public abstract class OsuModObjectScaleTween : ModWithVisibilityAdjustment
     {
         public override ModType Type => ModType.Fun;
 
         public override double ScoreMultiplier => 1;
 
-        protected virtual float StartScale => 1;
+        public abstract BindableNumber<float> StartScale { get; }
 
         protected virtual float EndScale => 1;
 
-        private Bindable<bool> increaseFirstObjectVisibility = new Bindable<bool>();
-
         public override Type[] IncompatibleMods => new[] { typeof(OsuModSpinIn), typeof(OsuModTraceable) };
 
-        public void ReadFromConfig(OsuConfigManager config)
+        protected override void ApplyIncreasedVisibilityState(DrawableHitObject hitObject, ArmedState state)
         {
-            increaseFirstObjectVisibility = config.GetBindable<bool>(OsuSetting.IncreaseFirstObjectVisibility);
         }
 
-        public void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
-        {
-            foreach (var drawable in drawables.Skip(increaseFirstObjectVisibility.Value ? 1 : 0))
-            {
-                switch (drawable)
-                {
-                    case DrawableSpinner _:
-                        continue;
+        protected override void ApplyNormalVisibilityState(DrawableHitObject hitObject, ArmedState state) => applyCustomState(hitObject, state);
 
-                    default:
-                        drawable.ApplyCustomUpdateState += ApplyCustomState;
-                        break;
-                }
-            }
-        }
-
-        protected virtual void ApplyCustomState(DrawableHitObject drawable, ArmedState state)
+        private void applyCustomState(DrawableHitObject drawable, ArmedState state)
         {
+            if (drawable is DrawableSpinner)
+                return;
+
             var h = (OsuHitObject)drawable.HitObject;
 
             // apply grow effect
@@ -68,7 +51,7 @@ namespace osu.Game.Rulesets.Osu.Mods
                 case DrawableHitCircle _:
                 {
                     using (drawable.BeginAbsoluteSequence(h.StartTime - h.TimePreempt))
-                        drawable.ScaleTo(StartScale).Then().ScaleTo(EndScale, h.TimePreempt, Easing.OutSine);
+                        drawable.ScaleTo(StartScale.Value).Then().ScaleTo(EndScale, h.TimePreempt, Easing.OutSine);
                     break;
                 }
             }

osu.Game.Rulesets.Osu/Mods/OsuModRandom.cs

@@ -0,0 +1,273 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using osu.Framework.Graphics;
+using osu.Framework.Utils;
+using osu.Game.Beatmaps;
+using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Osu.Beatmaps;
+using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Rulesets.Osu.UI;
+using osuTK;
+
+namespace osu.Game.Rulesets.Osu.Mods
+{
+    /// <summary>
+    /// Mod that randomises the positions of the <see cref="HitObject"/>s
+    /// </summary>
+    public class OsuModRandom : ModRandom, IApplicableToBeatmap
+    {
+        public override string Description => "It never gets boring!";
+
+        // The relative distance to the edge of the playfield before objects' positions should start to "turn around" and curve towards the middle.
+        // The closer the hit objects draw to the border, the sharper the turn
+        private const float playfield_edge_ratio = 0.375f;
+
+        private static readonly float border_distance_x = OsuPlayfield.BASE_SIZE.X * playfield_edge_ratio;
+        private static readonly float border_distance_y = OsuPlayfield.BASE_SIZE.Y * playfield_edge_ratio;
+
+        private static readonly Vector2 playfield_middle = OsuPlayfield.BASE_SIZE / 2;
+
+        private static readonly float playfield_diagonal = OsuPlayfield.BASE_SIZE.LengthFast;
+
+        private Random rng;
+
+        public void ApplyToBeatmap(IBeatmap beatmap)
+        {
+            if (!(beatmap is OsuBeatmap osuBeatmap))
+                return;
+
+            var hitObjects = osuBeatmap.HitObjects;
+
+            Seed.Value ??= RNG.Next();
+
+            rng = new Random((int)Seed.Value);
+
+            RandomObjectInfo previous = null;
+
+            float rateOfChangeMultiplier = 0;
+
+            for (int i = 0; i < hitObjects.Count; i++)
+            {
+                var hitObject = hitObjects[i];
+
+                var current = new RandomObjectInfo(hitObject);
+
+                // rateOfChangeMultiplier only changes every i iterations to prevent shaky-line-shaped streams
+                if (i % 3 == 0)
+                    rateOfChangeMultiplier = (float)rng.NextDouble() * 2 - 1;
+
+                if (hitObject is Spinner)
+                {
+                    previous = null;
+                    continue;
+                }
+
+                applyRandomisation(rateOfChangeMultiplier, previous, current);
+
+                hitObject.Position = current.PositionRandomised;
+
+                // update end position as it may have changed as a result of the position update.
+                current.EndPositionRandomised = current.PositionRandomised;
+
+                if (hitObject is Slider slider)
+                    moveSliderIntoPlayfield(slider, current);
+
+                previous = current;
+            }
+        }
+
+        /// <summary>
+        /// Returns the final position of the hit object
+        /// </summary>
+        /// <returns>Final position of the hit object</returns>
+        private void applyRandomisation(float rateOfChangeMultiplier, RandomObjectInfo previous, RandomObjectInfo current)
+        {
+            if (previous == null)
+            {
+                var playfieldSize = OsuPlayfield.BASE_SIZE;
+
+                current.AngleRad = (float)(rng.NextDouble() * 2 * Math.PI - Math.PI);
+                current.PositionRandomised = new Vector2((float)rng.NextDouble() * playfieldSize.X, (float)rng.NextDouble() * playfieldSize.Y);
+
+                return;
+            }
+
+            float distanceToPrev = Vector2.Distance(previous.EndPositionOriginal, current.PositionOriginal);
+
+            // The max. angle (relative to the angle of the vector pointing from the 2nd last to the last hit object)
+            // is proportional to the distance between the last and the current hit object
+            // to allow jumps and prevent too sharp turns during streams.
+            var randomAngleRad = rateOfChangeMultiplier * 2 * Math.PI * distanceToPrev / playfield_diagonal;
+
+            current.AngleRad = (float)randomAngleRad + previous.AngleRad;
+            if (current.AngleRad < 0)
+                current.AngleRad += 2 * (float)Math.PI;
+
+            var posRelativeToPrev = new Vector2(
+                distanceToPrev * (float)Math.Cos(current.AngleRad),
+                distanceToPrev * (float)Math.Sin(current.AngleRad)
+            );
+
+            posRelativeToPrev = getRotatedVector(previous.EndPositionRandomised, posRelativeToPrev);
+
+            current.AngleRad = (float)Math.Atan2(posRelativeToPrev.Y, posRelativeToPrev.X);
+
+            var position = previous.EndPositionRandomised + posRelativeToPrev;
+
+            // Move hit objects back into the playfield if they are outside of it,
+            // which would sometimes happen during big jumps otherwise.
+            position.X = MathHelper.Clamp(position.X, 0, OsuPlayfield.BASE_SIZE.X);
+            position.Y = MathHelper.Clamp(position.Y, 0, OsuPlayfield.BASE_SIZE.Y);
+
+            current.PositionRandomised = position;
+        }
+
+        /// <summary>
+        /// Moves the <see cref="Slider"/> and all necessary nested <see cref="OsuHitObject"/>s into the <see cref="OsuPlayfield"/> if they aren't already.
+        /// </summary>
+        private void moveSliderIntoPlayfield(Slider slider, RandomObjectInfo currentObjectInfo)
+        {
+            var minMargin = getMinSliderMargin(slider);
+
+            slider.Position = new Vector2(
+                Math.Clamp(slider.Position.X, minMargin.Left, OsuPlayfield.BASE_SIZE.X - minMargin.Right),
+                Math.Clamp(slider.Position.Y, minMargin.Top, OsuPlayfield.BASE_SIZE.Y - minMargin.Bottom)
+            );
+
+            currentObjectInfo.PositionRandomised = slider.Position;
+            currentObjectInfo.EndPositionRandomised = slider.EndPosition;
+
+            shiftNestedObjects(slider, currentObjectInfo.PositionRandomised - currentObjectInfo.PositionOriginal);
+        }
+
+        /// <summary>
+        /// Calculates the min. distances from the <see cref="Slider"/>'s position to the playfield border for the slider to be fully inside of the playfield.
+        /// </summary>
+        private MarginPadding getMinSliderMargin(Slider slider)
+        {
+            var pathPositions = new List<Vector2>();
+            slider.Path.GetPathToProgress(pathPositions, 0, 1);
+
+            var minMargin = new MarginPadding();
+
+            foreach (var pos in pathPositions)
+            {
+                minMargin.Left = Math.Max(minMargin.Left, -pos.X);
+                minMargin.Right = Math.Max(minMargin.Right, pos.X);
+                minMargin.Top = Math.Max(minMargin.Top, -pos.Y);
+                minMargin.Bottom = Math.Max(minMargin.Bottom, pos.Y);
+            }
+
+            minMargin.Left = Math.Min(minMargin.Left, OsuPlayfield.BASE_SIZE.X - minMargin.Right);
+            minMargin.Top = Math.Min(minMargin.Top, OsuPlayfield.BASE_SIZE.Y - minMargin.Bottom);
+
+            return minMargin;
+        }
+
+        /// <summary>
+        /// Shifts all nested <see cref="SliderTick"/>s and <see cref="SliderRepeat"/>s by the specified shift.
+        /// </summary>
+        /// <param name="slider"><see cref="Slider"/> whose nested <see cref="SliderTick"/>s and <see cref="SliderRepeat"/>s should be shifted</param>
+        /// <param name="shift">The <see cref="Vector2"/> the <see cref="Slider"/>'s nested <see cref="SliderTick"/>s and <see cref="SliderRepeat"/>s should be shifted by</param>
+        private void shiftNestedObjects(Slider slider, Vector2 shift)
+        {
+            foreach (var hitObject in slider.NestedHitObjects.Where(o => o is SliderTick || o is SliderRepeat))
+            {
+                if (!(hitObject is OsuHitObject osuHitObject))
+                    continue;
+
+                osuHitObject.Position += shift;
+            }
+        }
+
+        /// <summary>
+        /// Determines the position of the current hit object relative to the previous one.
+        /// </summary>
+        /// <returns>The position of the current hit object relative to the previous one</returns>
+        private Vector2 getRotatedVector(Vector2 prevPosChanged, Vector2 posRelativeToPrev)
+        {
+            var relativeRotationDistance = 0f;
+
+            if (prevPosChanged.X < playfield_middle.X)
+            {
+                relativeRotationDistance = Math.Max(
+                    (border_distance_x - prevPosChanged.X) / border_distance_x,
+                    relativeRotationDistance
+                );
+            }
+            else
+            {
+                relativeRotationDistance = Math.Max(
+                    (prevPosChanged.X - (OsuPlayfield.BASE_SIZE.X - border_distance_x)) / border_distance_x,
+                    relativeRotationDistance
+                );
+            }
+
+            if (prevPosChanged.Y < playfield_middle.Y)
+            {
+                relativeRotationDistance = Math.Max(
+                    (border_distance_y - prevPosChanged.Y) / border_distance_y,
+                    relativeRotationDistance
+                );
+            }
+            else
+            {
+                relativeRotationDistance = Math.Max(
+                    (prevPosChanged.Y - (OsuPlayfield.BASE_SIZE.Y - border_distance_y)) / border_distance_y,
+                    relativeRotationDistance
+                );
+            }
+
+            return rotateVectorTowardsVector(posRelativeToPrev, playfield_middle - prevPosChanged, relativeRotationDistance / 2);
+        }
+
+        /// <summary>
+        /// Rotates vector "initial" towards vector "destinantion"
+        /// </summary>
+        /// <param name="initial">Vector to rotate to "destination"</param>
+        /// <param name="destination">Vector "initial" should be rotated to</param>
+        /// <param name="relativeDistance">The angle the vector should be rotated relative to the difference between the angles of the the two vectors.</param>
+        /// <returns>Resulting vector</returns>
+        private Vector2 rotateVectorTowardsVector(Vector2 initial, Vector2 destination, float relativeDistance)
+        {
+            var initialAngleRad = Math.Atan2(initial.Y, initial.X);
+            var destAngleRad = Math.Atan2(destination.Y, destination.X);
+
+            var diff = destAngleRad - initialAngleRad;
+
+            while (diff < -Math.PI) diff += 2 * Math.PI;
+
+            while (diff > Math.PI) diff -= 2 * Math.PI;
+
+            var finalAngleRad = initialAngleRad + relativeDistance * diff;
+
+            return new Vector2(
+                initial.Length * (float)Math.Cos(finalAngleRad),
+                initial.Length * (float)Math.Sin(finalAngleRad)
+            );
+        }
+
+        private class RandomObjectInfo
+        {
+            public float AngleRad { get; set; }
+
+            public Vector2 PositionOriginal { get; }
+            public Vector2 PositionRandomised { get; set; }
+
+            public Vector2 EndPositionOriginal { get; }
+            public Vector2 EndPositionRandomised { get; set; }
+
+            public RandomObjectInfo(OsuHitObject hitObject)
+            {
+                PositionRandomised = PositionOriginal = hitObject.Position;
+                EndPositionRandomised = EndPositionOriginal = hitObject.EndPosition;
+                AngleRad = 0;
+            }
+        }
+    }
+}

osu.Game.Rulesets.Osu/Mods/OsuModRelax.cs

@@ -11,11 +11,12 @@ using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Osu.Objects.Drawables;
 using osu.Game.Rulesets.Replays;
 using osu.Game.Rulesets.UI;
+using osu.Game.Screens.Play;
 using static osu.Game.Input.Handlers.ReplayInputHandler;
 
 namespace osu.Game.Rulesets.Osu.Mods
 {
-    public class OsuModRelax : ModRelax, IUpdatableByPlayfield, IApplicableToDrawableRuleset<OsuHitObject>
+    public class OsuModRelax : ModRelax, IUpdatableByPlayfield, IApplicableToDrawableRuleset<OsuHitObject>, IApplicableToPlayer
     {
         public override string Description => @"You don't need to click. Give your clicking/tapping fingers a break from the heat of things.";
         public override Type[] IncompatibleMods => base.IncompatibleMods.Append(typeof(OsuModAutopilot)).ToArray();
@@ -33,15 +34,30 @@ namespace osu.Game.Rulesets.Osu.Mods
         private ReplayState<OsuAction> state;
         private double lastStateChangeTime;
 
+        private bool hasReplay;
+
         public void ApplyToDrawableRuleset(DrawableRuleset<OsuHitObject> drawableRuleset)
         {
             // grab the input manager for future use.
             osuInputManager = (OsuInputManager)drawableRuleset.KeyBindingInputManager;
+        }
+
+        public void ApplyToPlayer(Player player)
+        {
+            if (osuInputManager.ReplayInputHandler != null)
+            {
+                hasReplay = true;
+                return;
+            }
+
             osuInputManager.AllowUserPresses = false;
         }
 
         public void Update(Playfield playfield)
         {
+            if (hasReplay)
+                return;
+
             bool requiresHold = false;
             bool requiresHit = false;
 
@@ -54,7 +70,7 @@ namespace osu.Game.Rulesets.Osu.Mods
                     break;
 
                 // already hit or beyond the hittable end time.
-                if (h.IsHit || (h.HitObject is IHasEndTime hasEnd && time > hasEnd.EndTime))
+                if (h.IsHit || (h.HitObject is IHasDuration hasEnd && time > hasEnd.EndTime))
                     continue;
 
                 switch (h)
@@ -90,7 +106,7 @@ namespace osu.Game.Rulesets.Osu.Mods
 
             void handleHitCircle(DrawableHitCircle circle)
             {
-                if (!circle.IsHovered)
+                if (!circle.HitArea.IsHovered)
                     return;
 
                 Debug.Assert(circle.HitObject.HitWindows != null);

osu.Game.Rulesets.Osu/Mods/OsuModSpinIn.cs

@@ -2,12 +2,8 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using osu.Framework.Bindables;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
-using osu.Game.Configuration;
 using osu.Game.Rulesets.Mods;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Osu.Objects;
@@ -16,7 +12,7 @@ using osuTK;
 
 namespace osu.Game.Rulesets.Osu.Mods
 {
-    public class OsuModSpinIn : Mod, IApplicableToDrawableHitObjects, IReadFromConfig
+    public class OsuModSpinIn : ModWithVisibilityAdjustment
     {
         public override string Name => "Spin In";
         public override string Acronym => "SI";
@@ -31,31 +27,17 @@ namespace osu.Game.Rulesets.Osu.Mods
         private const int rotate_offset = 360;
         private const float rotate_starting_width = 2;
 
-        private Bindable<bool> increaseFirstObjectVisibility = new Bindable<bool>();
-
-        public void ReadFromConfig(OsuConfigManager config)
+        protected override void ApplyIncreasedVisibilityState(DrawableHitObject hitObject, ArmedState state)
         {
-            increaseFirstObjectVisibility = config.GetBindable<bool>(OsuSetting.IncreaseFirstObjectVisibility);
         }
 
-        public void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
-        {
-            foreach (var drawable in drawables.Skip(increaseFirstObjectVisibility.Value ? 1 : 0))
-            {
-                switch (drawable)
-                {
-                    case DrawableSpinner _:
-                        continue;
-
-                    default:
-                        drawable.ApplyCustomUpdateState += applyZoomState;
-                        break;
-                }
-            }
-        }
+        protected override void ApplyNormalVisibilityState(DrawableHitObject hitObject, ArmedState state) => applyZoomState(hitObject, state);
 
         private void applyZoomState(DrawableHitObject drawable, ArmedState state)
         {
+            if (drawable is DrawableSpinner)
+                return;
+
             var h = (OsuHitObject)drawable.HitObject;
 
             switch (drawable)

osu.Game.Rulesets.Osu/Mods/OsuModSpunOut.cs

@@ -2,21 +2,54 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
+using System.Collections.Generic;
+using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
+using osu.Framework.Utils;
 using osu.Game.Graphics;
 using osu.Game.Rulesets.Mods;
+using osu.Game.Rulesets.Objects.Drawables;
+using osu.Game.Rulesets.Osu.Objects.Drawables;
 
 namespace osu.Game.Rulesets.Osu.Mods
 {
-    public class OsuModSpunOut : Mod
+    public class OsuModSpunOut : Mod, IApplicableToDrawableHitObjects
     {
         public override string Name => "Spun Out";
         public override string Acronym => "SO";
         public override IconUsage? Icon => OsuIcon.ModSpunout;
-        public override ModType Type => ModType.DifficultyReduction;
+        public override ModType Type => ModType.Automation;
         public override string Description => @"Spinners will be automatically completed.";
         public override double ScoreMultiplier => 0.9;
-        public override bool Ranked => true;
         public override Type[] IncompatibleMods => new[] { typeof(ModAutoplay), typeof(OsuModAutopilot) };
+
+        public void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
+        {
+            foreach (var hitObject in drawables)
+            {
+                if (hitObject is DrawableSpinner spinner)
+                {
+                    spinner.HandleUserInput = false;
+                    spinner.OnUpdate += onSpinnerUpdate;
+                }
+            }
+        }
+
+        private void onSpinnerUpdate(Drawable drawable)
+        {
+            var spinner = (DrawableSpinner)drawable;
+
+            spinner.RotationTracker.Tracking = true;
+
+            // early-return if we were paused to avoid division-by-zero in the subsequent calculations.
+            if (Precision.AlmostEquals(spinner.Clock.Rate, 0))
+                return;
+
+            // because the spinner is under the gameplay clock, it is affected by rate adjustments on the track;
+            // for that reason using ElapsedFrameTime directly leads to fewer SPM with Half Time and more SPM with Double Time.
+            // for spinners we want the real (wall clock) elapsed time; to achieve that, unapply the clock rate locally here.
+            var rateIndependentElapsedTime = spinner.Clock.ElapsedFrameTime / spinner.Clock.Rate;
+            spinner.RotationTracker.AddRotation(MathUtils.RadiansToDegrees((float)rateIndependentElapsedTime * 0.03f));
+        }
     }
 }

osu.Game.Rulesets.Osu/Mods/OsuModTouchDevice.cs

@@ -9,10 +9,9 @@ namespace osu.Game.Rulesets.Osu.Mods
     {
         public override string Name => "Touch Device";
         public override string Acronym => "TD";
+        public override string Description => "Automatically applied to plays on devices with a touchscreen.";
         public override double ScoreMultiplier => 1;
 
         public override ModType Type => ModType.System;
-
-        public override bool Ranked => true;
     }
 }

osu.Game.Rulesets.Osu/Mods/OsuModTraceable.cs

@@ -2,19 +2,16 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
-using System.Linq;
-using osu.Framework.Bindables;
-using System.Collections.Generic;
 using osu.Framework.Extensions.Color4Extensions;
-using osu.Game.Configuration;
+using osu.Framework.Graphics;
 using osu.Game.Rulesets.Mods;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Osu.Objects.Drawables;
-using osu.Game.Rulesets.Osu.Objects.Drawables.Pieces;
+using osu.Game.Rulesets.Osu.Skinning.Default;
 
 namespace osu.Game.Rulesets.Osu.Mods
 {
-    internal class OsuModTraceable : Mod, IReadFromConfig, IApplicableToDrawableHitObjects
+    public class OsuModTraceable : ModWithVisibilityAdjustment
     {
         public override string Name => "Traceable";
         public override string Acronym => "TC";
@@ -23,47 +20,50 @@ namespace osu.Game.Rulesets.Osu.Mods
         public override double ScoreMultiplier => 1;
 
         public override Type[] IncompatibleMods => new[] { typeof(OsuModHidden), typeof(OsuModSpinIn), typeof(OsuModObjectScaleTween) };
-        private Bindable<bool> increaseFirstObjectVisibility = new Bindable<bool>();
 
-        public void ReadFromConfig(OsuConfigManager config)
+        protected override void ApplyIncreasedVisibilityState(DrawableHitObject hitObject, ArmedState state)
         {
-            increaseFirstObjectVisibility = config.GetBindable<bool>(OsuSetting.IncreaseFirstObjectVisibility);
         }
 
-        public void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
-        {
-            foreach (var drawable in drawables.Skip(increaseFirstObjectVisibility.Value ? 1 : 0))
-                drawable.ApplyCustomUpdateState += ApplyTraceableState;
-        }
+        protected override void ApplyNormalVisibilityState(DrawableHitObject hitObject, ArmedState state) => applyTraceableState(hitObject, state);
 
-        protected void ApplyTraceableState(DrawableHitObject drawable, ArmedState state)
+        private void applyTraceableState(DrawableHitObject drawable, ArmedState state)
         {
-            if (!(drawable is DrawableOsuHitObject drawableOsu))
+            if (!(drawable is DrawableOsuHitObject))
                 return;
 
-            var h = drawableOsu.HitObject;
+            //todo: expose and hide spinner background somehow
 
             switch (drawable)
             {
                 case DrawableHitCircle circle:
                     // we only want to see the approach circle
-                    using (circle.BeginAbsoluteSequence(h.StartTime - h.TimePreempt, true))
-                        circle.CirclePiece.Hide();
+                    applyCirclePieceState(circle, circle.CirclePiece);
+                    break;
 
+                case DrawableSliderTail sliderTail:
+                    applyCirclePieceState(sliderTail);
+                    break;
+
+                case DrawableSliderRepeat sliderRepeat:
+                    // show only the repeat arrow
+                    applyCirclePieceState(sliderRepeat, sliderRepeat.CirclePiece);
                     break;
 
                 case DrawableSlider slider:
                     slider.Body.OnSkinChanged += () => applySliderState(slider);
                     applySliderState(slider);
                     break;
-
-                case DrawableSpinner spinner:
-                    spinner.Disc.Hide();
-                    spinner.Background.Hide();
-                    break;
             }
         }
 
+        private void applyCirclePieceState(DrawableOsuHitObject hitObject, IDrawable hitCircle = null)
+        {
+            var h = hitObject.HitObject;
+            using (hitObject.BeginAbsoluteSequence(h.StartTime - h.TimePreempt, true))
+                (hitCircle ?? hitObject).Hide();
+        }
+
         private void applySliderState(DrawableSlider slider)
         {
             ((PlaySliderBody)slider.Body.Drawable).AccentColour = slider.AccentColour.Value.Opacity(0);

osu.Game.Rulesets.Osu/Mods/OsuModTransform.cs

@@ -2,7 +2,6 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
-using System.Collections.Generic;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
 using osu.Game.Rulesets.Mods;
@@ -13,7 +12,7 @@ using osuTK;
 
 namespace osu.Game.Rulesets.Osu.Mods
 {
-    internal class OsuModTransform : Mod, IApplicableToDrawableHitObjects
+    internal class OsuModTransform : ModWithVisibilityAdjustment
     {
         public override string Name => "Transform";
         public override string Acronym => "TR";
@@ -25,11 +24,9 @@ namespace osu.Game.Rulesets.Osu.Mods
 
         private float theta;
 
-        public void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
-        {
-            foreach (var drawable in drawables)
-                drawable.ApplyCustomUpdateState += applyTransform;
-        }
+        protected override void ApplyIncreasedVisibilityState(DrawableHitObject hitObject, ArmedState state) => applyTransform(hitObject, state);
+
+        protected override void ApplyNormalVisibilityState(DrawableHitObject hitObject, ArmedState state) => applyTransform(hitObject, state);
 
         private void applyTransform(DrawableHitObject drawable, ArmedState state)
         {
@@ -38,7 +35,7 @@ namespace osu.Game.Rulesets.Osu.Mods
                 case DrawableSliderHead _:
                 case DrawableSliderTail _:
                 case DrawableSliderTick _:
-                case DrawableRepeatPoint _:
+                case DrawableSliderRepeat _:
                     return;
 
                 default:
@@ -49,7 +46,7 @@ namespace osu.Game.Rulesets.Osu.Mods
                     Vector2 originalPosition = drawable.Position;
                     Vector2 appearOffset = new Vector2(MathF.Cos(theta), MathF.Sin(theta)) * appearDistance;
 
-                    //the - 1 and + 1 prevents the hit objects to appear in the wrong position.
+                    // the - 1 and + 1 prevents the hit objects to appear in the wrong position.
                     double appearTime = hitObject.StartTime - hitObject.TimePreempt - 1;
                     double moveDuration = hitObject.TimePreempt + 1;
 

osu.Game.Rulesets.Osu/Mods/OsuModWiggle.cs

@@ -2,7 +2,6 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
-using System.Collections.Generic;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Sprites;
 using osu.Game.Rulesets.Mods;
@@ -13,7 +12,7 @@ using osuTK;
 
 namespace osu.Game.Rulesets.Osu.Mods
 {
-    internal class OsuModWiggle : Mod, IApplicableToDrawableHitObjects
+    internal class OsuModWiggle : ModWithVisibilityAdjustment
     {
         public override string Name => "Wiggle";
         public override string Acronym => "WG";
@@ -26,20 +25,18 @@ namespace osu.Game.Rulesets.Osu.Mods
         private const int wiggle_duration = 90; // (ms) Higher = fewer wiggles
         private const int wiggle_strength = 10; // Higher = stronger wiggles
 
-        public void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
-        {
-            foreach (var drawable in drawables)
-                drawable.ApplyCustomUpdateState += drawableOnApplyCustomUpdateState;
-        }
+        protected override void ApplyIncreasedVisibilityState(DrawableHitObject hitObject, ArmedState state) => drawableOnApplyCustomUpdateState(hitObject, state);
+
+        protected override void ApplyNormalVisibilityState(DrawableHitObject hitObject, ArmedState state) => drawableOnApplyCustomUpdateState(hitObject, state);
 
         private void drawableOnApplyCustomUpdateState(DrawableHitObject drawable, ArmedState state)
         {
             var osuObject = (OsuHitObject)drawable.HitObject;
             Vector2 origin = drawable.Position;
 
-            // Wiggle the repeat points with the slider instead of independently.
+            // Wiggle the repeat points and the tail with the slider instead of independently.
             // Also fixes an issue with repeat points being positioned incorrectly.
-            if (osuObject is RepeatPoint)
+            if (osuObject is SliderRepeat || osuObject is SliderTailCircle)
                 return;
 
             Random objRand = new Random((int)osuObject.StartTime);
@@ -61,7 +58,7 @@ namespace osu.Game.Rulesets.Osu.Mods
             }
 
             // Keep wiggling sliders and spinners for their duration
-            if (!(osuObject is IHasEndTime endTime))
+            if (!(osuObject is IHasDuration endTime))
                 return;
 
             amountWiggles = (int)(endTime.Duration / wiggle_duration);