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osu-lazer/osu.Game.Rulesets.Taiko/Objects/Drawables/DrawableTaikoStrongableHitObject.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.Linq;
using JetBrains.Annotations;
using osu.Framework.Bindables;
using osu.Framework.Graphics.Containers;
using osu.Game.Audio;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Objects.Drawables;
using osuTK;
namespace osu.Game.Rulesets.Taiko.Objects.Drawables
{
public abstract class DrawableTaikoStrongableHitObject<TObject, TStrongNestedObject> : DrawableTaikoHitObject<TObject>
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where TObject : TaikoStrongableHitObject
where TStrongNestedObject : StrongNestedHitObject
{
private readonly Bindable<bool> isStrong = new BindableBool();
private readonly Container<DrawableStrongNestedHit> strongHitContainer;
protected DrawableTaikoStrongableHitObject([CanBeNull] TObject hitObject)
: base(hitObject)
{
AddInternal(strongHitContainer = new Container<DrawableStrongNestedHit>());
}
protected override void OnApply()
{
isStrong.BindTo(HitObject.IsStrongBindable);
isStrong.BindValueChanged(_ =>
{
// will overwrite samples, should only be called on subsequent changes
// after the initial application.
updateSamplesFromStrong();
RecreatePieces();
});
base.OnApply();
}
protected override void OnFree()
{
base.OnFree();
isStrong.UnbindFrom(HitObject.IsStrongBindable);
// ensure the next application does not accidentally overwrite samples.
isStrong.UnbindEvents();
}
private HitSampleInfo[] getStrongSamples() => HitObject.Samples.Where(s => s.Name == HitSampleInfo.HIT_FINISH).ToArray();
protected override void LoadSamples()
{
base.LoadSamples();
isStrong.Value = getStrongSamples().Any();
}
private void updateSamplesFromStrong()
{
var strongSamples = getStrongSamples();
if (isStrong.Value != strongSamples.Any())
{
if (isStrong.Value)
HitObject.Samples.Add(new HitSampleInfo(HitSampleInfo.HIT_FINISH));
else
{
foreach (var sample in strongSamples)
HitObject.Samples.Remove(sample);
}
}
}
protected override void RecreatePieces()
{
base.RecreatePieces();
if (HitObject.IsStrong)
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Size = BaseSize = new Vector2(TaikoStrongableHitObject.DEFAULT_STRONG_SIZE);
}
protected override void AddNestedHitObject(DrawableHitObject hitObject)
{
base.AddNestedHitObject(hitObject);
switch (hitObject)
{
case DrawableStrongNestedHit strong:
strongHitContainer.Add(strong);
break;
}
}
protected override void ClearNestedHitObjects()
{
base.ClearNestedHitObjects();
strongHitContainer.Clear(false);
}
protected override DrawableHitObject CreateNestedHitObject(HitObject hitObject)
{
switch (hitObject)
{
case TStrongNestedObject strong:
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return CreateStrongNestedHit(strong);
}
return base.CreateNestedHitObject(hitObject);
}
/// <summary>
/// Creates the handler for this <see cref="DrawableHitObject"/>'s <see cref="StrongNestedHitObject"/>.
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/// This is only invoked if <see cref="TaikoStrongableHitObject.IsStrong"/> is true for <see cref="HitObject"/>.
/// </summary>
/// <param name="hitObject">The strong hitobject.</param>
/// <returns>The strong hitobject handler.</returns>
protected abstract DrawableStrongNestedHit CreateStrongNestedHit(TStrongNestedObject hitObject);
}
}