Add faint kiai explosion on the hit marker.

osu.Game.Rulesets.Taiko/UI/KiaiHitExplosion.cs

@@ -0,0 +1,68 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using OpenTK;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Sprites;
+using osu.Game.Graphics;
+using osu.Game.Rulesets.Taiko.Judgements;
+using osu.Game.Rulesets.Taiko.Objects;
+
+namespace osu.Game.Rulesets.Taiko.UI
+{
+    public class KiaiHitExplosion : CircularContainer
+    {
+        public readonly TaikoJudgement Judgement;
+
+        private readonly bool isRim;
+
+        public KiaiHitExplosion(TaikoJudgement judgement, bool isRim)
+        {
+            this.isRim = isRim;
+
+            Judgement = judgement;
+
+            Anchor = Anchor.Centre;
+            Origin = Anchor.Centre;
+
+            RelativeSizeAxes = Axes.Y;
+            Size = new Vector2(TaikoHitObject.DEFAULT_CIRCLE_DIAMETER, 1);
+
+            Masking = true;
+            Alpha = 0.15f;
+
+            Children = new[]
+            {
+                new Box
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Alpha = 0,
+                    AlwaysPresent = true
+                }
+            };
+        }
+
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colours)
+        {
+            EdgeEffect = new EdgeEffect
+            {
+                Type = EdgeEffectType.Glow,
+                Colour = isRim ? colours.BlueDarker : colours.PinkDarker,
+                Radius = 60,
+            };
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            ScaleTo(new Vector2(1, 3f), 500, EasingTypes.OutQuint);
+            FadeOut(250);
+
+            Expire();
+        }
+    }
+}

osu.Game.Rulesets.Taiko/UI/TaikoPlayfield.cs

@@ -39,6 +39,7 @@ namespace osu.Game.Rulesets.Taiko.UI
         protected override Container<Drawable> Content => hitObjectContainer;
 
         private readonly Container<HitExplosion> hitExplosionContainer;
+        private readonly Container<KiaiHitExplosion> kiaiExplosionContainer;
         private readonly Container<DrawableBarLine> barLineContainer;
         private readonly Container<DrawableTaikoJudgement> judgementContainer;
 
@@ -117,6 +118,13 @@ namespace osu.Game.Rulesets.Taiko.UI
                                         },
                                     }
                                 },
+                                kiaiExplosionContainer = new Container<KiaiHitExplosion>
+                                {
+                                    Name = "Kiai hit explosions",
+                                    RelativeSizeAxes = Axes.Y,
+                                    Margin = new MarginPadding { Left = HIT_TARGET_OFFSET },
+                                    BlendingMode = BlendingMode.Additive
+                                },
                                 judgementContainer = new Container<DrawableTaikoJudgement>
                                 {
                                     Name = "Judgements",
@@ -207,6 +215,8 @@ namespace osu.Game.Rulesets.Taiko.UI
             if (!wasHit)
                 return;
 
+            bool isRim = judgedObject.HitObject is RimHit;
+
             if (!secondHit)
             {
                 if (judgedObject.X >= -0.05f && !(judgedObject is DrawableSwell))
@@ -215,7 +225,11 @@ namespace osu.Game.Rulesets.Taiko.UI
                     topLevelHitContainer.Add(judgedObject.CreateProxy());
                 }
 
-                hitExplosionContainer.Add(new HitExplosion(judgedObject.Judgement, judgedObject is DrawableRimHit));
+                hitExplosionContainer.Add(new HitExplosion(judgedObject.Judgement, isRim));
+
+                if (judgedObject.HitObject.Kiai)
+                    kiaiExplosionContainer.Add(new KiaiHitExplosion(judgedObject.Judgement, isRim));
+
             }
             else
                 hitExplosionContainer.Children.FirstOrDefault(e => e.Judgement == judgedObject.Judgement)?.VisualiseSecondHit();

osu.Game.Rulesets.Taiko/osu.Game.Rulesets.Taiko.csproj

@@ -87,6 +87,7 @@
     <Compile Include="Scoring\TaikoScoreProcessor.cs" />
     <Compile Include="UI\HitTarget.cs" />
     <Compile Include="UI\InputDrum.cs" />
+    <Compile Include="UI\KiaiHitExplosion.cs" />
     <Compile Include="UI\DrawableTaikoJudgement.cs" />
     <Compile Include="UI\HitExplosion.cs" />
     <Compile Include="UI\TaikoHitRenderer.cs" />