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97 lines
3.1 KiB
C#
97 lines
3.1 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using System.Collections.Generic;
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using osu.Game.Rulesets.Mania.MathUtils;
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using osu.Game.Rulesets.Objects;
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using osu.Game.Rulesets.Objects.Types;
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using System.Linq;
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using osu.Game.Audio;
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using osu.Game.Beatmaps;
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using osu.Game.Rulesets.Mania.Objects;
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namespace osu.Game.Rulesets.Mania.Beatmaps.Patterns.Legacy
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{
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internal class EndTimeObjectPatternGenerator : PatternGenerator
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{
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private readonly double endTime;
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public EndTimeObjectPatternGenerator(FastRandom random, HitObject hitObject, ManiaBeatmap beatmap, IBeatmap originalBeatmap)
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: base(random, hitObject, beatmap, new Pattern(), originalBeatmap)
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{
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endTime = (HitObject as IHasEndTime)?.EndTime ?? 0;
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}
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public override IEnumerable<Pattern> Generate()
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{
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yield return generate();
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}
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private Pattern generate()
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{
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var pattern = new Pattern();
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bool generateHold = endTime - HitObject.StartTime >= 100;
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switch (TotalColumns)
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{
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case 8 when HitObject.Samples.Any(s => s.Name == HitSampleInfo.HIT_FINISH) && endTime - HitObject.StartTime < 1000:
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addToPattern(pattern, 0, generateHold);
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break;
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case 8:
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addToPattern(pattern, FindAvailableColumn(GetRandomColumn(), PreviousPattern), generateHold);
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break;
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default:
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if (TotalColumns > 0)
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addToPattern(pattern, GetRandomColumn(), generateHold);
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break;
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}
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return pattern;
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}
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/// <summary>
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/// Constructs and adds a note to a pattern.
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/// </summary>
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/// <param name="pattern">The pattern to add to.</param>
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/// <param name="column">The column to add the note to.</param>
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/// <param name="holdNote">Whether to add a hold note.</param>
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private void addToPattern(Pattern pattern, int column, bool holdNote)
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{
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ManiaHitObject newObject;
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if (holdNote)
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{
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var hold = new HoldNote
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{
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StartTime = HitObject.StartTime,
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Column = column,
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Duration = endTime - HitObject.StartTime
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};
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if (hold.Head.Samples == null)
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hold.Head.Samples = new List<HitSampleInfo>();
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hold.Head.Samples.Add(new HitSampleInfo { Name = HitSampleInfo.HIT_NORMAL });
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hold.Tail.Samples = HitObject.Samples;
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newObject = hold;
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}
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else
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{
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newObject = new Note
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{
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StartTime = HitObject.StartTime,
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Samples = HitObject.Samples,
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Column = column
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};
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}
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pattern.Add(newObject);
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}
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}
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}
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