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osu-lazer/osu.Game.Rulesets.Mania/Skinning/LegacyHitExplosion.cs
2020-04-06 12:39:49 +09:00

74 lines
2.7 KiB
C#

// 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.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Animations;
using osu.Game.Rulesets.UI.Scrolling;
using osu.Game.Skinning;
using osuTK;
namespace osu.Game.Rulesets.Mania.Skinning
{
public class LegacyHitExplosion : LegacyManiaColumnElement
{
private readonly IBindable<ScrollingDirection> direction = new Bindable<ScrollingDirection>();
private Drawable explosion;
public LegacyHitExplosion()
{
RelativeSizeAxes = Axes.Both;
}
[BackgroundDependencyLoader]
private void load(ISkinSource skin, IScrollingInfo scrollingInfo)
{
string imageName = GetManiaSkinConfig<string>(skin, LegacyManiaSkinConfigurationLookups.ExplosionImage)?.Value
?? "lightingN";
float explosionScale = GetManiaSkinConfig<float>(skin, LegacyManiaSkinConfigurationLookups.ExplosionScale)?.Value
?? 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 =>
{
if (d == null)
return;
d.Origin = Anchor.Centre;
d.Blending = BlendingParameters.Additive;
d.Scale = new Vector2(explosionScale);
});
if (explosion != null)
InternalChild = explosion;
direction.BindTo(scrollingInfo.Direction);
direction.BindValueChanged(onDirectionChanged, true);
}
private void onDirectionChanged(ValueChangedEvent<ScrollingDirection> direction)
{
if (explosion != null)
explosion.Anchor = direction.NewValue == ScrollingDirection.Up ? Anchor.TopCentre : Anchor.BottomCentre;
}
protected override void LoadComplete()
{
base.LoadComplete();
explosion?.FadeInFromZero(80)
.Then().FadeOut(120);
}
}
}