osu-lazer/osu.Game/Storyboards/Commands/StoryboardBlendingParametersCommand.cs

// 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.Graphics;
using osu.Framework.Graphics.Transforms;

namespace osu.Game.Storyboards.Commands
{
    public class StoryboardBlendingParametersCommand : StoryboardCommand<BlendingParameters>
    {
        public StoryboardBlendingParametersCommand(double startTime, double endTime, BlendingParameters startValue, BlendingParameters endValue, Easing easing)
            : base(startTime, endTime, startValue, endValue, easing)
        {
        }

        public override void SetInitialValue(Drawable d) => d.Blending = StartValue;

        public override TransformSequence<Drawable> ApplyTransform(Drawable d)
            => d.TransformTo(nameof(d.Blending), StartValue).Delay(Duration).TransformTo(nameof(d.Blending), EndValue);
    }
}