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osu-lazer/osu.Game.Rulesets.Mania/Skinning/Legacy/LegacyHitExplosion.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.
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using System;
using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
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using osu.Framework.Graphics.Animations;
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using osu.Game.Rulesets.Judgements;
using osu.Game.Rulesets.Mania.Judgements;
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using osu.Game.Rulesets.Mania.UI;
using osu.Game.Rulesets.UI.Scrolling;
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using osu.Game.Skinning;
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using osuTK;
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namespace osu.Game.Rulesets.Mania.Skinning.Legacy
{
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public class LegacyHitExplosion : LegacyManiaColumnElement, IHitExplosion
{
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public const double FADE_IN_DURATION = 80;
private readonly IBindable<ScrollingDirection> direction = new Bindable<ScrollingDirection>();
private Drawable explosion;
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public LegacyHitExplosion()
{
RelativeSizeAxes = Axes.Both;
}
[BackgroundDependencyLoader]
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private void load(ISkinSource skin, IScrollingInfo scrollingInfo)
{
string imageName = GetColumnSkinConfig<string>(skin, LegacyManiaSkinConfigurationLookups.ExplosionImage)?.Value
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?? "lightingN";
float explosionScale = GetColumnSkinConfig<float>(skin, LegacyManiaSkinConfigurationLookups.ExplosionScale)?.Value
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?? 1;
// Create a temporary animation to retrieve the number of frames, in an effort to calculate the intended frame length.
// This animation is discarded and re-queried with the appropriate frame length afterwards.
var tmp = skin.GetAnimation(imageName, true, false);
double frameLength = 0;
if (tmp is IFramedAnimation tmpAnimation && tmpAnimation.FrameCount > 0)
frameLength = Math.Max(1000 / 60.0, 170.0 / tmpAnimation.FrameCount);
explosion = skin.GetAnimation(imageName, true, false, frameLength: frameLength).With(d =>
{
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if (d == null)
return;
d.Origin = Anchor.Centre;
d.Blending = BlendingParameters.Additive;
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d.Scale = new Vector2(explosionScale);
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});
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if (explosion != null)
InternalChild = explosion;
direction.BindTo(scrollingInfo.Direction);
direction.BindValueChanged(onDirectionChanged, true);
}
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private void onDirectionChanged(ValueChangedEvent<ScrollingDirection> direction)
{
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if (explosion != null)
explosion.Anchor = direction.NewValue == ScrollingDirection.Up ? Anchor.TopCentre : Anchor.BottomCentre;
}
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public void Animate(JudgementResult result)
{
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if (result.Judgement is HoldNoteTickJudgement)
return;
(explosion as IFramedAnimation)?.GotoFrame(0);
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explosion?.FadeInFromZero(FADE_IN_DURATION)
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.Then().FadeOut(120);
}
}
}