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osu-lazer/osu.Game.Rulesets.Osu/Skinning/OsuLegacySkinTransformer.cs
2019-12-18 15:39:36 +09:00

147 lines
5.2 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.Audio.Sample;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Textures;
using osu.Game.Audio;
using osu.Game.Skinning;
using osuTK;
namespace osu.Game.Rulesets.Osu.Skinning
{
public class OsuLegacySkinTransformer : ISkin
{
private readonly ISkin source;
private Lazy<bool> hasHitCircle;
/// <summary>
/// On osu-stable, hitcircles have 5 pixels of transparent padding on each side to allow for shadows etc.
/// Their hittable area is 128px, but the actual circle portion is 118px.
/// We must account for some gameplay elements such as slider bodies, where this padding is not present.
/// </summary>
public const float LEGACY_CIRCLE_RADIUS = 64 - 5;
public OsuLegacySkinTransformer(ISkinSource source)
{
this.source = source;
source.SourceChanged += sourceChanged;
sourceChanged();
}
private void sourceChanged()
{
hasHitCircle = new Lazy<bool>(() => source.GetTexture("hitcircle") != null);
}
public Drawable GetDrawableComponent(ISkinComponent component)
{
if (!(component is OsuSkinComponent osuComponent))
return null;
switch (osuComponent.Component)
{
case OsuSkinComponents.FollowPoint:
return this.GetAnimation(component.LookupName, true, false);
case OsuSkinComponents.SliderFollowCircle:
var followCircle = this.GetAnimation("sliderfollowcircle", true, true);
if (followCircle != null)
// follow circles are 2x the hitcircle resolution in legacy skins (since they are scaled down from >1x
followCircle.Scale *= 0.5f;
return followCircle;
case OsuSkinComponents.SliderBall:
var sliderBallContent = this.GetAnimation("sliderb", true, true, "");
if (sliderBallContent != null)
{
var size = sliderBallContent.Size;
sliderBallContent.RelativeSizeAxes = Axes.Both;
sliderBallContent.Size = Vector2.One;
return new LegacySliderBall(sliderBallContent)
{
Size = size
};
}
return null;
case OsuSkinComponents.SliderBody:
if (hasHitCircle.Value)
return new LegacySliderBody();
return null;
case OsuSkinComponents.HitCircle:
if (hasHitCircle.Value)
return new LegacyMainCirclePiece();
return null;
case OsuSkinComponents.Cursor:
if (source.GetTexture("cursor") != null)
return new LegacyCursor();
return null;
case OsuSkinComponents.CursorTrail:
if (source.GetTexture("cursortrail") != null)
return new LegacyCursorTrail();
return null;
case OsuSkinComponents.HitCircleText:
var font = GetConfig<OsuSkinConfiguration, string>(OsuSkinConfiguration.HitCirclePrefix)?.Value ?? "default";
var overlap = GetConfig<OsuSkinConfiguration, float>(OsuSkinConfiguration.HitCircleOverlap)?.Value ?? 0;
return !hasFont(font)
? null
: new LegacySpriteText(source, font)
{
// stable applies a blanket 0.8x scale to hitcircle fonts
Scale = new Vector2(0.8f),
Spacing = new Vector2(-overlap, 0)
};
}
return null;
}
public Texture GetTexture(string componentName) => source.GetTexture(componentName);
public SampleChannel GetSample(ISampleInfo sample) => source.GetSample(sample);
public IBindable<TValue> GetConfig<TLookup, TValue>(TLookup lookup)
{
switch (lookup)
{
case OsuSkinColour colour:
return source.GetConfig<SkinCustomColourLookup, TValue>(new SkinCustomColourLookup(colour));
case OsuSkinConfiguration osuLookup:
switch (osuLookup)
{
case OsuSkinConfiguration.SliderPathRadius:
if (hasHitCircle.Value)
return SkinUtils.As<TValue>(new BindableFloat(LEGACY_CIRCLE_RADIUS));
break;
}
break;
}
return source.GetConfig<TLookup, TValue>(lookup);
}
private bool hasFont(string fontName) => source.GetTexture($"{fontName}-0") != null;
}
}