osu/osu.Game.Rulesets.Osu/UI/LegacyHitPolicy.cs

73 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 System.Linq;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Objects.Drawables;
using osu.Game.Rulesets.Osu.Objects.Drawables;
using osu.Game.Rulesets.Osu.Scoring;
using osu.Game.Rulesets.Scoring;
using osu.Game.Rulesets.UI;
namespace osu.Game.Rulesets.Osu.UI
{
/// <summary>
/// Ensures that <see cref="HitObject"/>s are hit in order of appearance. The classic note lock.
/// <remarks>
/// Hits will be blocked until the previous <see cref="HitObject"/>s have been judged.
/// </remarks>
/// </summary>
public class LegacyHitPolicy : IHitPolicy
{
public IHitObjectContainer? HitObjectContainer { get; set; }
private readonly double hittableRange;
public LegacyHitPolicy(double hittableRange = OsuHitWindows.MISS_WINDOW)
{
this.hittableRange = hittableRange;
}
public void HandleHit(DrawableHitObject hitObject)
{
}
public virtual ClickAction CheckHittable(DrawableHitObject hitObject, double time, HitResult result)
{
if (HitObjectContainer == null)
throw new InvalidOperationException($"{nameof(HitObjectContainer)} should be set before {nameof(CheckHittable)} is called.");
var aliveObjects = HitObjectContainer.AliveObjects.ToList();
int index = aliveObjects.IndexOf(hitObject);
if (index > 0)
{
var previousHitObject = (DrawableOsuHitObject)aliveObjects[index - 1];
if (previousHitObject.HitObject.StackHeight > 0 && !previousHitObject.AllJudged)
return ClickAction.Ignore;
}
if (result == HitResult.None)
return ClickAction.Shake;
foreach (DrawableHitObject testObject in aliveObjects)
{
if (testObject.AllJudged)
continue;
// if we found the object being checked, we can move on to the final timing test.
if (testObject == hitObject)
break;
// for all other objects, we check for validity and block the hit if any are still valid.
// 3ms of extra leniency to account for slightly unsnapped objects.
if (testObject.HitObject.GetEndTime() + 3 < hitObject.HitObject.StartTime)
return ClickAction.Shake;
}
return Math.Abs(hitObject.HitObject.StartTime - time) < hittableRange ? ClickAction.Hit : ClickAction.Shake;
}
}
}