Split hit explosion positioning from column

osu.Game.Rulesets.Mania.Tests/Skinning/TestSceneHitExplosion.cs

@@ -0,0 +1,66 @@
+// 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 NUnit.Framework;
+using osu.Framework.Allocation;
+using osu.Framework.Extensions.IEnumerableExtensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Game.Rulesets.Mania.Objects.Drawables;
+using osu.Game.Rulesets.Mania.Objects.Drawables.Pieces;
+using osu.Game.Rulesets.Mania.UI;
+using osu.Game.Skinning;
+using osuTK;
+using osuTK.Graphics;
+
+namespace osu.Game.Rulesets.Mania.Tests.Skinning
+{
+    [TestFixture]
+    public class TestSceneHitExplosion : ManiaSkinnableTestScene
+    {
+        public override IReadOnlyList<Type> RequiredTypes => new[]
+        {
+            typeof(DrawableNote),
+            typeof(DrawableManiaHitObject),
+        };
+
+        public TestSceneHitExplosion()
+        {
+            int runcount = 0;
+
+            AddRepeatStep("explode", () =>
+            {
+                runcount++;
+
+                if (runcount % 15 > 12)
+                    return;
+
+                CreatedDrawables.OfType<Container>().ForEach(c =>
+                {
+                    c.Add(new SkinnableDrawable(new ManiaSkinComponent(ManiaSkinComponents.HitExplosion),
+                        _ => new DefaultHitExplosion((runcount / 15) % 2 == 0 ? new Color4(94, 0, 57, 255) : new Color4(6, 84, 0, 255), runcount % 6 != 0)
+                        {
+                            Anchor = Anchor.Centre,
+                            Origin = Anchor.Centre,
+                        }));
+                });
+            }, 100);
+        }
+
+        [BackgroundDependencyLoader]
+        private void load()
+        {
+            SetContents(() => new Container
+            {
+                Anchor = Anchor.Centre,
+                Origin = Anchor.Centre,
+                RelativePositionAxes = Axes.Y,
+                Y = -0.25f,
+                Size = new Vector2(Column.COLUMN_WIDTH, DefaultNotePiece.NOTE_HEIGHT),
+            });
+        }
+    }
+}