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osu-lazer/osu.Game/Rulesets/Edit/Checks/CheckZeroLengthObjects.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.Collections.Generic;
using osu.Game.Rulesets.Edit.Checks.Components;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Objects.Types;
namespace osu.Game.Rulesets.Edit.Checks
{
public class CheckZeroLengthObjects : ICheck
{
/// <summary>
/// The duration can be this low before being treated as having no length, in case of precision errors. Unit is milliseconds.
/// </summary>
private const double leniency = 0.5d;
public CheckMetadata Metadata { get; } = new CheckMetadata(CheckCategory.Compose, "Zero-length hitobjects");
public IEnumerable<IssueTemplate> PossibleTemplates => new IssueTemplate[]
{
new IssueTemplateZeroLength(this)
};
public IEnumerable<Issue> Run(BeatmapVerifierContext context)
{
foreach (var hitObject in context.Beatmap.HitObjects)
{
if (!(hitObject is IHasDuration hasDuration))
continue;
if (hasDuration.Duration < leniency)
yield return new IssueTemplateZeroLength(this).Create(hitObject, hasDuration.Duration);
}
}
public class IssueTemplateZeroLength : IssueTemplate
{
public IssueTemplateZeroLength(ICheck check)
: base(check, IssueType.Problem, "{0} has a duration of {1:0}.")
{
}
public Issue Create(HitObject hitobject, double duration) => new Issue(hitobject, this, hitobject.GetType(), duration);
}
}
}