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group evenrhythms within a pattern

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Jay Lawton 2024-12-01 15:35:25 +10:00
parent b55b0157f5
commit 363e33d473
1 changed files with 55 additions and 0 deletions
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osu.Game.Rulesets.Taiko/Difficulty/Preprocessing/Rhythm/Data/EvenPatterns.cs Normal file
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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 System.Linq;
namespace osu.Game.Rulesets.Taiko.Difficulty.Preprocessing.Rhythm.Data
{
/// <summary>
/// Represents <see cref="EvenHitObjects"/> grouped by their <see cref="EvenHitObjects.StartTime"/>'s interval.
/// </summary>
public class EvenPatterns : EvenRhythm<EvenHitObjects>
{
public EvenPatterns? Previous { get; private set; }
/// <summary>
/// The <see cref="EvenHitObjects.Interval"/> between children <see cref="EvenHitObjects"/> within this group.
/// If there is only one child, this will have the value of the first child's <see cref="EvenHitObjects.Interval"/>.
/// </summary>
public double ChildrenInterval => Children.Count > 1 ? Children[1].Interval : Children[0].Interval;
/// <summary>
/// The ratio of <see cref="ChildrenInterval"/> between this and the previous <see cref="EvenPatterns"/>. In the
/// case where there is no previous <see cref="EvenPatterns"/>, this will have a value of 1.
/// </summary>
public double IntervalRatio => ChildrenInterval / Previous?.ChildrenInterval ?? 1.0d;
public TaikoDifficultyHitObject FirstHitObject => Children[0].FirstHitObject;
public IEnumerable<TaikoDifficultyHitObject> AllHitObjects => Children.SelectMany(child => child.Children);
private EvenPatterns(EvenPatterns? previous, List<EvenHitObjects> data, ref int i)
: base(data, ref i, 5)
{
Previous = previous;
foreach (TaikoDifficultyHitObject hitObject in AllHitObjects)
{
hitObject.Rhythm.EvenPatterns = this;
}
}
public static void GroupPatterns(List<EvenHitObjects> data)
{
List<EvenPatterns> evenPatterns = new List<EvenPatterns>();
// Index does not need to be incremented, as it is handled within the EvenRhythm constructor.
for (int i = 0; i < data.Count;)
{
EvenPatterns? previous = evenPatterns.Count > 0 ? evenPatterns[^1] : null;
evenPatterns.Add(new EvenPatterns(previous, data, ref i));
}
}
}
}