mirror of https://github.com/ppy/osu
99 lines
3.2 KiB
C#
99 lines
3.2 KiB
C#
// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using osu.Game.Rulesets.Objects.Types;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using osu.Game.Beatmaps.Timing;
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using osu.Game.Database;
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using osu.Game.Audio;
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namespace osu.Game.Rulesets.Taiko.Objects
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{
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public class DrumRoll : TaikoHitObject, IHasEndTime
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{
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/// <summary>
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/// Drum roll distance that results in a duration of 1 speed-adjusted beat length.
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/// </summary>
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private const float base_distance = 100;
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public double EndTime => StartTime + Duration;
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public double Duration { get; set; }
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/// <summary>
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/// Numer of ticks per beat length.
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/// </summary>
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public int TickRate = 1;
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/// <summary>
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/// Number of drum roll ticks required for a "Good" hit.
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/// </summary>
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public double RequiredGoodHits { get; protected set; }
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/// <summary>
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/// Number of drum roll ticks required for a "Great" hit.
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/// </summary>
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public double RequiredGreatHits { get; protected set; }
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/// <summary>
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/// Total number of drum roll ticks.
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/// </summary>
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public int TotalTicks => Ticks.Count();
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/// <summary>
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/// Initializes the drum roll ticks if not initialized and returns them.
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/// </summary>
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public IEnumerable<DrumRollTick> Ticks => ticks ?? (ticks = createTicks());
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private List<DrumRollTick> ticks;
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/// <summary>
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/// The length (in milliseconds) between ticks of this drumroll.
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/// <para>Half of this value is the hit window of the ticks.</para>
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/// </summary>
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private double tickSpacing = 100;
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public override void ApplyDefaults(TimingInfo timing, BeatmapDifficulty difficulty)
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{
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base.ApplyDefaults(timing, difficulty);
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tickSpacing = timing.BeatLengthAt(StartTime) / TickRate;
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RequiredGoodHits = TotalTicks * Math.Min(0.15, 0.05 + 0.10 / 6 * difficulty.OverallDifficulty);
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RequiredGreatHits = TotalTicks * Math.Min(0.30, 0.10 + 0.20 / 6 * difficulty.OverallDifficulty);
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}
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private List<DrumRollTick> createTicks()
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{
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var ret = new List<DrumRollTick>();
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if (tickSpacing == 0)
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return ret;
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bool first = true;
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for (double t = StartTime; t < EndTime + tickSpacing / 2; t += tickSpacing)
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{
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ret.Add(new DrumRollTick
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{
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FirstTick = first,
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ScrollTime = ScrollTime,
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TickSpacing = tickSpacing,
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StartTime = t,
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IsStrong = IsStrong,
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Samples = new SampleInfoList(Samples.Select(s => new SampleInfo
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{
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Bank = s.Bank,
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Name = @"slidertick",
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Volume = s.Volume
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}))
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});
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first = false;
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}
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return ret;
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}
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}
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} |