Setup hyper-dash colouring test scene

osu.Game.Rulesets.Catch.Tests/TestSceneHyperDashColouring.cs

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+// 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.Linq;
+using NUnit.Framework;
+using osu.Framework.Audio.Sample;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Graphics.Sprites;
+using osu.Framework.Graphics.Textures;
+using osu.Framework.Testing;
+using osu.Game.Audio;
+using osu.Game.Beatmaps;
+using osu.Game.Beatmaps.ControlPoints;
+using osu.Game.Rulesets.Catch.Objects;
+using osu.Game.Rulesets.Catch.Objects.Drawables;
+using osu.Game.Rulesets.Catch.Skinning;
+using osu.Game.Rulesets.Catch.UI;
+using osu.Game.Skinning;
+using osu.Game.Tests.Visual;
+using osuTK;
+using osuTK.Graphics;
+
+namespace osu.Game.Rulesets.Catch.Tests
+{
+    public class TestSceneHyperDashColouring : OsuTestScene
+    {
+        private Drawable setupSkinHierarchy(Func<Drawable> getChild, bool customHyperDashCatcherColour = false, bool customHyperDashFruitColour = false, bool customHyperDashAfterColour = false)
+        {
+            var testSkinProvider = new SkinProvidingContainer(new TestLegacySkin(customHyperDashCatcherColour, customHyperDashFruitColour, customHyperDashAfterColour));
+
+            var legacySkinTransformer = new SkinProvidingContainer(new CatchLegacySkinTransformer(testSkinProvider));
+
+            return testSkinProvider
+                .WithChild(legacySkinTransformer
+                    .WithChild(getChild.Invoke()));
+        }
+
+        private bool checkFruitHyperDashColour(DrawableFruit fruit, Color4 expectedColour, bool isLegacyFruit) =>
+            isLegacyFruit
+                ? fruit.ChildrenOfType<SkinnableDrawable>().First().Drawable.ChildrenOfType<Sprite>().Any(c => c.Colour == expectedColour)
+                : fruit.ChildrenOfType<SkinnableDrawable>().First().Drawable.ChildrenOfType<Circle>().Single(c => c.BorderColour == expectedColour).Any(d => d.Colour == expectedColour);
+
+        private class TestLegacySkin : ISkin
+        {
+            public static Color4 CustomHyperDashColour { get; } = Color4.Goldenrod;
+            public static Color4 CustomHyperDashFruitColour { get; } = Color4.Cyan;
+            public static Color4 CustomHyperDashAfterColour { get; } = Color4.Lime;
+
+            private readonly bool customHyperDashCatcherColour;
+            private readonly bool customHyperDashFruitColour;
+            private readonly bool customHyperDashAfterColour;
+
+            public TestLegacySkin(bool customHyperDashCatcherColour = false, bool customHyperDashFruitColour = false, bool customHyperDashAfterColour = false)
+            {
+                this.customHyperDashCatcherColour = customHyperDashCatcherColour;
+                this.customHyperDashFruitColour = customHyperDashFruitColour;
+                this.customHyperDashAfterColour = customHyperDashAfterColour;
+            }
+
+            public Drawable GetDrawableComponent(ISkinComponent component) => null;
+
+            public Texture GetTexture(string componentName)
+            {
+                if (componentName == "fruit-pear")
+                {
+                    // convince CatchLegacySkinTransformer to use the LegacyFruitPiece for pear fruit.
+                    var texture = new Texture(Texture.WhitePixel.TextureGL)
+                    {
+                        Width = 1,
+                        Height = 1,
+                        ScaleAdjust = 1 / 96f
+                    };
+                    return texture;
+                }
+
+                return null;
+            }
+
+            public SampleChannel GetSample(ISampleInfo sampleInfo) => null;
+
+            public IBindable<TValue> GetConfig<TLookup, TValue>(TLookup lookup)
+            {
+                switch (lookup)
+                {
+                    case CatchSkinConfiguration config when config == CatchSkinConfiguration.HyperDash:
+                        if (customHyperDashCatcherColour)
+                            return SkinUtils.As<TValue>(new Bindable<Color4>(CustomHyperDashColour));
+
+                        return null;
+
+                    case CatchSkinConfiguration config when config == CatchSkinConfiguration.HyperDashFruit:
+                        if (customHyperDashFruitColour)
+                            return SkinUtils.As<TValue>(new Bindable<Color4>(CustomHyperDashFruitColour));
+
+                        return null;
+
+                    case CatchSkinConfiguration config when config == CatchSkinConfiguration.HyperDashAfterImage:
+                        if (customHyperDashAfterColour)
+                            return SkinUtils.As<TValue>(new Bindable<Color4>(CustomHyperDashAfterColour));
+
+                        return null;
+                }
+
+                return null;
+            }
+        }
+    }
+}