osu/osu.Game.Rulesets.Osu/Objects/Drawables/DrawableSliderHead.cs

108 lines
3.4 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 System.Diagnostics;
using JetBrains.Annotations;
using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Game.Rulesets.Objects.Types;
using osu.Game.Rulesets.Scoring;
namespace osu.Game.Rulesets.Osu.Objects.Drawables
{
public class DrawableSliderHead : DrawableHitCircle
{
public new SliderHeadCircle HitObject => (SliderHeadCircle)base.HitObject;
[CanBeNull]
public Slider Slider => DrawableSlider?.HitObject;
protected DrawableSlider DrawableSlider => (DrawableSlider)ParentHitObject;
public override bool DisplayResult => HitObject?.JudgeAsNormalHitCircle ?? base.DisplayResult;
/// <summary>
/// Makes this <see cref="DrawableSliderHead"/> track the follow circle when the start time is reached.
/// If <c>false</c>, this <see cref="DrawableSliderHead"/> will be pinned to its initial position in the slider.
/// </summary>
public bool TrackFollowCircle = true;
private readonly IBindable<int> pathVersion = new Bindable<int>();
protected override OsuSkinComponents CirclePieceComponent => OsuSkinComponents.SliderHeadHitCircle;
public DrawableSliderHead()
{
}
public DrawableSliderHead(SliderHeadCircle h)
: base(h)
{
}
[BackgroundDependencyLoader]
private void load()
{
PositionBindable.BindValueChanged(_ => updatePosition());
pathVersion.BindValueChanged(_ => updatePosition());
}
protected override void OnFree()
{
base.OnFree();
pathVersion.UnbindFrom(DrawableSlider.PathVersion);
}
protected override void OnApply()
{
base.OnApply();
pathVersion.BindTo(DrawableSlider.PathVersion);
OnShake = DrawableSlider.Shake;
CheckHittable = (d, t) => DrawableSlider.CheckHittable?.Invoke(d, t) ?? true;
}
protected override void Update()
{
base.Update();
Debug.Assert(Slider != null);
Debug.Assert(HitObject != null);
if (TrackFollowCircle)
{
double completionProgress = Math.Clamp((Time.Current - Slider.StartTime) / Slider.Duration, 0, 1);
//todo: we probably want to reconsider this before adding scoring, but it looks and feels nice.
if (!IsHit)
Position = Slider.CurvePositionAt(completionProgress);
}
}
protected override HitResult ResultFor(double timeOffset)
{
Debug.Assert(HitObject != null);
if (HitObject.JudgeAsNormalHitCircle)
return base.ResultFor(timeOffset);
// If not judged as a normal hitcircle, judge as a slider tick instead. This is the classic osu!stable scoring.
var result = base.ResultFor(timeOffset);
return result.IsHit() ? HitResult.LargeTickHit : HitResult.LargeTickMiss;
}
public Action<double> OnShake;
public override void Shake(double maximumLength) => OnShake?.Invoke(maximumLength);
private void updatePosition()
{
if (Slider != null)
Position = HitObject.Position - Slider.Position;
}
}
}