Add argon hit explosion implementation

osu.Game.Rulesets.Taiko/Skinning/Argon/ArgonHitExplosion.cs

@@ -0,0 +1,87 @@
+// 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.Extensions.Color4Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Colour;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Effects;
+using osu.Framework.Graphics.Shapes;
+using osu.Game.Rulesets.Objects.Drawables;
+using osu.Game.Rulesets.Taiko.Objects;
+using osu.Game.Rulesets.Taiko.UI;
+using osuTK;
+using osuTK.Graphics;
+
+namespace osu.Game.Rulesets.Taiko.Skinning.Argon
+{
+    public class ArgonHitExplosion : CompositeDrawable, IAnimatableHitExplosion
+    {
+        private readonly TaikoSkinComponents component;
+        private readonly Circle outer;
+
+        public ArgonHitExplosion(TaikoSkinComponents component)
+        {
+            this.component = component;
+
+            RelativeSizeAxes = Axes.Both;
+
+            InternalChildren = new Drawable[]
+            {
+                outer = new Circle
+                {
+                    Name = "Outer circle",
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre,
+                    RelativeSizeAxes = Axes.Both,
+                    Colour = ColourInfo.GradientVertical(
+                        new Color4(255, 227, 236, 255),
+                        new Color4(255, 198, 211, 255)
+                    ),
+                    Masking = true,
+                },
+                new Circle
+                {
+                    Name = "Inner circle",
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre,
+                    RelativeSizeAxes = Axes.Both,
+                    Colour = Color4.White,
+                    Size = new Vector2(0.85f),
+                    EdgeEffect = new EdgeEffectParameters
+                    {
+                        Type = EdgeEffectType.Glow,
+                        Colour = new Color4(255, 132, 191, 255).Opacity(0.5f),
+                        Radius = 45,
+                    },
+                    Masking = true,
+                },
+            };
+        }
+
+        public void Animate(DrawableHitObject drawableHitObject)
+        {
+            this.FadeOut();
+
+            switch (component)
+            {
+                case TaikoSkinComponents.TaikoExplosionGreat:
+                    this.FadeIn(30, Easing.In)
+                        .Then()
+                        .FadeOut(450, Easing.OutQuint);
+                    break;
+
+                case TaikoSkinComponents.TaikoExplosionOk:
+                    this.FadeTo(0.2f, 30, Easing.In)
+                        .Then()
+                        .FadeOut(200, Easing.OutQuint);
+                    break;
+            }
+        }
+
+        public void AnimateSecondHit()
+        {
+            outer.ResizeTo(new Vector2(TaikoStrongableHitObject.STRONG_SCALE), 500, Easing.OutQuint);
+        }
+    }
+}

osu.Game.Rulesets.Taiko/Skinning/Argon/TaikoArgonSkinTransformer.cs

@@ -44,6 +44,15 @@ namespace osu.Game.Rulesets.Taiko.Skinning.Argon
 
                         case TaikoSkinComponents.DrumRollTick:
                             return new ArgonTickPiece();
+
+                        case TaikoSkinComponents.TaikoExplosionKiai:
+                            // the drawable needs to expire as soon as possible to avoid accumulating empty drawables on the playfield.
+                            return Drawable.Empty().With(d => d.Expire());
+
+                        case TaikoSkinComponents.TaikoExplosionGreat:
+                        case TaikoSkinComponents.TaikoExplosionMiss:
+                        case TaikoSkinComponents.TaikoExplosionOk:
+                            return new ArgonHitExplosion(catchComponent.Component);
                     }
 
                     break;