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https://github.com/ppy/osu
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33 lines
1.3 KiB
C#
33 lines
1.3 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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#nullable disable
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Transforms;
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namespace osu.Game.Storyboards.Drawables
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{
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public static class DrawablesExtensions
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{
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/// <summary>
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/// Adjusts <see cref="Drawable.Blending"/> after a delay.
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/// </summary>
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/// <returns>A <see cref="TransformSequence{T}"/> to which further transforms can be added.</returns>
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public static TransformSequence<T> TransformBlendingMode<T>(this T drawable, BlendingParameters newValue, double delay = 0)
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where T : Drawable
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=> drawable.TransformTo(drawable.PopulateTransform(new TransformBlendingParameters(), newValue, delay));
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}
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public class TransformBlendingParameters : Transform<BlendingParameters, Drawable>
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{
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private BlendingParameters valueAt(double time)
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=> time < EndTime ? StartValue : EndValue;
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public override string TargetMember => nameof(Drawable.Blending);
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protected override void Apply(Drawable d, double time) => d.Blending = valueAt(time);
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protected override void ReadIntoStartValue(Drawable d) => StartValue = d.Blending;
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}
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}
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