Add a spinner selection mask

osu.Game.Rulesets.Osu.Tests/TestCaseSpinnerSelectionMask.cs

@@ -0,0 +1,50 @@
+// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System;
+using System.Collections.Generic;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Rulesets.Edit;
+using osu.Game.Rulesets.Osu.Edit.Masks.SpinnerMasks;
+using osu.Game.Rulesets.Osu.Edit.Masks.SpinnerMasks.Components;
+using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Rulesets.Osu.Objects.Drawables;
+using osu.Game.Tests.Visual;
+using OpenTK;
+
+namespace osu.Game.Rulesets.Osu.Tests
+{
+    public class TestCaseSpinnerSelectionMask : HitObjectSelectionMaskTestCase
+    {
+        public override IReadOnlyList<Type> RequiredTypes => new[]
+        {
+            typeof(SpinnerSelectionMask),
+            typeof(SpinnerPiece)
+        };
+
+        private readonly DrawableSpinner drawableSpinner;
+
+        public TestCaseSpinnerSelectionMask()
+        {
+            var spinner = new Spinner
+            {
+                Position = new Vector2(256, 256),
+                StartTime = -1000,
+                EndTime = 2000
+            };
+            spinner.ApplyDefaults(new ControlPointInfo(), new BeatmapDifficulty { CircleSize = 2 });
+
+            Add(new Container
+            {
+                RelativeSizeAxes = Axes.Both,
+                Size = new Vector2(0.5f),
+                Child = drawableSpinner = new DrawableSpinner(spinner)
+            });
+        }
+
+        protected override SelectionMask CreateMask() => new SpinnerSelectionMask(drawableSpinner) { Size = new Vector2(0.5f) };
+    }
+}

osu.Game.Rulesets.Osu/Edit/Masks/SpinnerMasks/Components/SpinnerPiece.cs

@@ -0,0 +1,65 @@
+// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Graphics;
+using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Rulesets.Osu.Objects.Drawables.Pieces;
+using OpenTK;
+
+namespace osu.Game.Rulesets.Osu.Edit.Masks.SpinnerMasks.Components
+{
+    public class SpinnerPiece : CompositeDrawable
+    {
+        private readonly Spinner spinner;
+        private readonly CircularContainer circle;
+
+        public SpinnerPiece(Spinner spinner)
+        {
+            this.spinner = spinner;
+
+            Origin = Anchor.Centre;
+
+            RelativeSizeAxes = Axes.Both;
+            FillMode = FillMode.Fit;
+            Size = new Vector2(1.3f);
+
+            RingPiece ring;
+            InternalChildren = new Drawable[]
+            {
+                circle = new CircularContainer
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Masking = true,
+                    Alpha = 0.5f,
+                    Child = new Box { RelativeSizeAxes = Axes.Both }
+                },
+                ring = new RingPiece
+                {
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre
+                }
+            };
+
+            ring.Scale = new Vector2(spinner.Scale);
+
+            spinner.PositionChanged += _ => updatePosition();
+            spinner.StackHeightChanged += _ => updatePosition();
+
+            updatePosition();
+        }
+
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colours)
+        {
+            Colour = colours.Yellow;
+        }
+
+        private void updatePosition() => Position = spinner.Position;
+
+        public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => circle.ReceivePositionalInputAt(screenSpacePos);
+    }
+}

osu.Game.Rulesets.Osu/Edit/Masks/SpinnerMasks/SpinnerSelectionMask.cs

@@ -0,0 +1,24 @@
+// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Game.Rulesets.Edit;
+using osu.Game.Rulesets.Osu.Edit.Masks.SpinnerMasks.Components;
+using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Rulesets.Osu.Objects.Drawables;
+using OpenTK;
+
+namespace osu.Game.Rulesets.Osu.Edit.Masks.SpinnerMasks
+{
+    public class SpinnerSelectionMask : SelectionMask
+    {
+        private readonly SpinnerPiece piece;
+
+        public SpinnerSelectionMask(DrawableSpinner spinner)
+            : base(spinner)
+        {
+            InternalChild = piece = new SpinnerPiece((Spinner)spinner.HitObject);
+        }
+
+        public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) => piece.ReceivePositionalInputAt(screenSpacePos);
+    }
+}

osu.Game.Rulesets.Osu/Edit/OsuHitObjectComposer.cs

@@ -10,6 +10,7 @@ using osu.Game.Rulesets.Edit.Tools;
 using osu.Game.Rulesets.Objects.Drawables;
 using osu.Game.Rulesets.Osu.Edit.Masks.HitCircleMasks;
 using osu.Game.Rulesets.Osu.Edit.Masks.SliderMasks;
+using osu.Game.Rulesets.Osu.Edit.Masks.SpinnerMasks;
 using osu.Game.Rulesets.Osu.Objects;
 using osu.Game.Rulesets.Osu.Objects.Drawables;
 using osu.Game.Rulesets.Osu.UI;
@@ -42,6 +43,8 @@ namespace osu.Game.Rulesets.Osu.Edit
                     return new HitCircleSelectionMask(circle);
                 case DrawableSlider slider:
                     return new SliderSelectionMask(slider);
+                case DrawableSpinner spinner:
+                    return new SpinnerSelectionMask(spinner);
             }
 
             return base.CreateMaskFor(hitObject);

osu.Game.Rulesets.Osu/Objects/Drawables/DrawableSpinner.cs

@@ -112,6 +112,8 @@ namespace osu.Game.Rulesets.Osu.Objects.Drawables
                     Alpha = 0
                 }
             };
+
+            s.PositionChanged += _ => Position = s.Position;
         }
 
         public float Progress => MathHelper.Clamp(Disc.RotationAbsolute / 360 / Spinner.SpinsRequired, 0, 1);
@@ -167,7 +169,7 @@ namespace osu.Game.Rulesets.Osu.Objects.Drawables
 
         protected override void Update()
         {
-            Disc.Tracking = OsuActionInputManager.PressedActions.Any(x => x == OsuAction.LeftButton || x == OsuAction.RightButton);
+            Disc.Tracking = OsuActionInputManager?.PressedActions.Any(x => x == OsuAction.LeftButton || x == OsuAction.RightButton) ?? false;
             if (!spmCounter.IsPresent && Disc.Tracking)
                 spmCounter.FadeIn(HitObject.TimeFadeIn);