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osu-lazer/osu.Game/Skinning/LegacyKiaiFlashingDrawable.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 osu.Framework.Audio.Track;
using osu.Framework.Graphics;
using osu.Game.Beatmaps.ControlPoints;
using osu.Game.Graphics.Containers;
using osuTK.Graphics;
namespace osu.Game.Skinning
{
public partial class LegacyKiaiFlashingDrawable : BeatSyncedContainer
{
public Color4 KiaiGlowColour
{
get => flashingDrawable.Colour;
set => flashingDrawable.Colour = value;
}
private readonly Drawable flashingDrawable;
private const float flash_opacity = 0.3f;
public LegacyKiaiFlashingDrawable(Func<Drawable?> creationFunc)
{
AutoSizeAxes = Axes.Both;
Children = new[]
{
(creationFunc.Invoke() ?? Empty()).With(d =>
{
d.Anchor = Anchor.Centre;
d.Origin = Anchor.Centre;
}),
flashingDrawable = (creationFunc.Invoke() ?? Empty()).With(d =>
{
d.Anchor = Anchor.Centre;
d.Origin = Anchor.Centre;
d.Alpha = 0;
d.Blending = BlendingParameters.Additive;
})
};
}
protected override void OnNewBeat(int beatIndex, TimingControlPoint timingPoint, EffectControlPoint effectPoint, ChannelAmplitudes amplitudes)
{
if (!effectPoint.KiaiMode)
return;
flashingDrawable
.FadeTo(flash_opacity)
.Then()
.FadeOut(Math.Max(80, timingPoint.BeatLength - 80), Easing.OutSine);
}
}
}