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osu-lazer/osu.Game.Rulesets.Osu/Edit/Checks/CheckTooShortSliders.cs
2021-07-13 10:50:41 +02:00

49 lines
1.7 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.Collections.Generic;
using osu.Game.Beatmaps;
using osu.Game.Rulesets.Edit;
using osu.Game.Rulesets.Edit.Checks.Components;
using osu.Game.Rulesets.Osu.Objects;
namespace osu.Game.Rulesets.Osu.Edit.Checks
{
public class CheckTooShortSliders : ICheck
{
/// <summary>
/// The shortest acceptable duration between the head and tail of the slider (so ignoring repeats).
/// </summary>
private const double span_duration_threshold = 125; // 240 BPM 1/2
public CheckMetadata Metadata { get; } = new CheckMetadata(CheckCategory.Spread, "Too short sliders");
public IEnumerable<IssueTemplate> PossibleTemplates => new IssueTemplate[]
{
new IssueTemplateTooShort(this)
};
public IEnumerable<Issue> Run(BeatmapVerifierContext context)
{
if (context.InterpretedDifficulty > DifficultyRating.Easy)
yield break;
foreach (var hitObject in context.Beatmap.HitObjects)
{
if (hitObject is Slider slider && slider.SpanDuration < span_duration_threshold)
yield return new IssueTemplateTooShort(this).Create(slider);
}
}
public class IssueTemplateTooShort : IssueTemplate
{
public IssueTemplateTooShort(ICheck check)
: base(check, IssueType.Problem, "This slider is too short ({0:0} ms), expected at least {1:0} ms.")
{
}
public Issue Create(Slider slider) => new Issue(slider, this, slider.SpanDuration, span_duration_threshold);
}
}
}