A game framework written with osu! in mind.
keii.dev
Add `ColourInfo.GradientHorizontal` case for visual cross-comparison
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osu.Framework.Tests/Visual/Drawables/TestSceneColourInterpolation.cs
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osu.Framework.Tests/Visual/Drawables/TestSceneColourInterpolation.cs
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using System.Linq;
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using NUnit.Framework;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Colour;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Shapes;
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using osu.Framework.Graphics.Sprites;
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using osu.Framework.Utils;
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using osuTK;
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using osuTK.Graphics;
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namespace osu.Framework.Tests.Visual.Drawables
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[Test]
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public void TestColourInterpolatesInLinearSpace()
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{
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FillFlowContainer lines = null;
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FillFlowContainer interpolatingLines = null;
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AddStep("load interpolated colours", () => Child = lines = new FillFlowContainer
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AddStep("load interpolated colours", () =>
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{
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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AutoSizeAxes = Axes.X,
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Height = 50f,
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ChildrenEnumerable = Enumerable.Range(0, 750).Select(i => new Box
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Child = new FillFlowContainer
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{
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Width = 1f,
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RelativeSizeAxes = Axes.Y,
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Colour = Interpolation.ValueAt(i, Color4.Blue, Color4.Red, 0, 750),
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}),
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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AutoSizeAxes = Axes.Both,
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Direction = FillDirection.Vertical,
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Children = new Drawable[]
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{
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new SpriteText
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{
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Anchor = Anchor.CentreLeft,
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Origin = Anchor.CentreLeft,
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Text = $"{nameof(ColourInfo)}.{nameof(ColourInfo.GradientHorizontal)}(Blue, Red)"
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},
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new Box
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{
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Anchor = Anchor.CentreLeft,
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Origin = Anchor.CentreLeft,
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Size = new Vector2(750f, 50f),
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Colour = ColourInfo.GradientHorizontal(Color4.Blue, Color4.Red),
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},
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new SpriteText
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{
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Margin = new MarginPadding { Top = 20f },
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Anchor = Anchor.CentreLeft,
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Origin = Anchor.CentreLeft,
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Text = $"{nameof(Interpolation)}.{nameof(Interpolation.ValueAt)}(Blue, Red) with 1px boxes",
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},
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interpolatingLines = new FillFlowContainer
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{
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Anchor = Anchor.CentreLeft,
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Origin = Anchor.CentreLeft,
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AutoSizeAxes = Axes.X,
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Height = 50f,
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ChildrenEnumerable = Enumerable.Range(0, 750).Select(i => new Box
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{
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Width = 1f,
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RelativeSizeAxes = Axes.Y,
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Colour = Interpolation.ValueAt(i, Color4.Blue, Color4.Red, 0, 750),
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}),
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},
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}
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};
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});
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AddAssert("interpolation in linear space", () => lines.Children[lines.Children.Count / 2].Colour.AverageColour.Linear == new Color4(0.5f, 0f, 0.5f, 1f));
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AddAssert("interpolation in linear space", () =>
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{
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var middle = interpolatingLines.Children[interpolatingLines.Children.Count / 2];
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return middle.Colour.AverageColour.Linear == new Color4(0.5f, 0f, 0.5f, 1f);
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});
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}
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}
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}