osu/osu.Game.Rulesets.Osu/Objects/Spinner.cs

118 lines
4.4 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;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using osu.Game.Audio;
using osu.Game.Beatmaps;
using osu.Game.Beatmaps.ControlPoints;
using osu.Game.Rulesets.Judgements;
using osu.Game.Rulesets.Objects.Types;
using osu.Game.Rulesets.Osu.Judgements;
using osu.Game.Rulesets.Scoring;
using osuTK;
namespace osu.Game.Rulesets.Osu.Objects
{
public class Spinner : OsuHitObject, IHasDuration
{
/// <summary>
/// The RPM required to clear the spinner at ODs [ 0, 5, 10 ].
/// </summary>
private static readonly (int min, int mid, int max) clear_rpm_range = (90, 150, 225);
/// <summary>
/// The RPM required to complete the spinner and receive full score at ODs [ 0, 5, 10 ].
/// </summary>
private static readonly (int min, int mid, int max) complete_rpm_range = (250, 380, 430);
public double EndTime
{
get => StartTime + Duration;
set => Duration = value - StartTime;
}
public double Duration { get; set; }
/// <summary>
/// Number of spins required to finish the spinner without miss.
/// </summary>
public int SpinsRequired { get; protected set; } = 1;
/// <summary>
/// The number of spins required to start receiving bonus score. The first bonus is awarded on this spin count.
/// </summary>
public int SpinsRequiredForBonus => SpinsRequired + bonus_spins_gap;
/// <summary>
/// The gap between spinner completion and the first bonus-awarding spin.
/// </summary>
private const int bonus_spins_gap = 2;
/// <summary>
/// Number of spins available to give bonus, beyond <see cref="SpinsRequired"/>.
/// </summary>
public int MaximumBonusSpins { get; protected set; } = 1;
public override Vector2 StackOffset => Vector2.Zero;
protected override void ApplyDefaultsToSelf(ControlPointInfo controlPointInfo, IBeatmapDifficultyInfo difficulty)
{
base.ApplyDefaultsToSelf(controlPointInfo, difficulty);
// The average RPS required over the length of the spinner to clear the spinner.
double minRps = IBeatmapDifficultyInfo.DifficultyRange(difficulty.OverallDifficulty, clear_rpm_range) / 60;
// The RPS required over the length of the spinner to receive full score (all normal + bonus ticks).
double maxRps = IBeatmapDifficultyInfo.DifficultyRange(difficulty.OverallDifficulty, complete_rpm_range) / 60;
double secondsDuration = Duration / 1000;
// Allow a 0.1ms floating point precision error in the calculation of the duration.
const double duration_error = 0.0001;
SpinsRequired = (int)(minRps * secondsDuration + duration_error);
MaximumBonusSpins = Math.Max(0, (int)(maxRps * secondsDuration + duration_error) - SpinsRequired - bonus_spins_gap);
}
protected override void CreateNestedHitObjects(CancellationToken cancellationToken)
{
base.CreateNestedHitObjects(cancellationToken);
int totalSpins = MaximumBonusSpins + SpinsRequired + bonus_spins_gap;
for (int i = 0; i < totalSpins; i++)
{
cancellationToken.ThrowIfCancellationRequested();
double startTime = StartTime + (float)(i + 1) / totalSpins * Duration;
AddNested(i < SpinsRequiredForBonus
? new SpinnerTick { StartTime = startTime, SpinnerDuration = Duration }
: new SpinnerBonusTick { StartTime = startTime, SpinnerDuration = Duration, Samples = new[] { CreateHitSampleInfo("spinnerbonus") } });
}
}
public override Judgement CreateJudgement() => new OsuJudgement();
protected override HitWindows CreateHitWindows() => HitWindows.Empty;
public override IList<HitSampleInfo> AuxiliarySamples => CreateSpinningSamples();
public HitSampleInfo[] CreateSpinningSamples()
{
var referenceSample = Samples.FirstOrDefault();
if (referenceSample == null)
return Array.Empty<HitSampleInfo>();
return new[]
{
referenceSample.With("spinnerspin")
};
}
}
}