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osu-lazer/osu.Game/Rulesets/Objects/Legacy/ConvertSlider.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.
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using osu.Game.Rulesets.Objects.Types;
using System.Collections.Generic;
using osu.Game.Audio;
using osu.Game.Beatmaps;
using osu.Game.Beatmaps.ControlPoints;
namespace osu.Game.Rulesets.Objects.Legacy
{
internal abstract class ConvertSlider : ConvertHitObject, IHasPathWithRepeats, IHasLegacyLastTickOffset,
#pragma warning disable 618
IHasCurve
#pragma warning restore 618
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{
/// <summary>
/// Scoring distance with a speed-adjusted beat length of 1 second.
/// </summary>
private const float base_scoring_distance = 100;
/// <summary>
/// <see cref="ConvertSlider"/>s don't need a curve since they're converted to ruleset-specific hitobjects.
/// </summary>
public SliderPath Path { get; set; }
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public double Distance => Path.Distance;
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public List<IList<HitSampleInfo>> NodeSamples { get; set; }
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public int RepeatCount { get; set; }
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public double Duration
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{
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get => this.SpanCount() * Distance / Velocity;
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set => throw new System.NotSupportedException($"Adjust via {nameof(RepeatCount)} instead"); // can be implemented if/when needed.
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}
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public double EndTime => StartTime + Duration;
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public double Velocity = 1;
protected override void ApplyDefaultsToSelf(ControlPointInfo controlPointInfo, BeatmapDifficulty difficulty)
{
base.ApplyDefaultsToSelf(controlPointInfo, difficulty);
TimingControlPoint timingPoint = controlPointInfo.TimingPointAt(StartTime);
DifficultyControlPoint difficultyPoint = controlPointInfo.DifficultyPointAt(StartTime);
double scoringDistance = base_scoring_distance * difficulty.SliderMultiplier * difficultyPoint.SpeedMultiplier;
Velocity = scoringDistance / timingPoint.BeatLength;
}
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public double LegacyLastTickOffset => 36;
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}
}