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Merge branch 'master' into new-diffcalc-taiko
This commit is contained in:
Dean Herbert
GitHub
commit
58f817ae85
@ -13,11 +13,11 @@ namespace osu.Game.Rulesets.Catch.Tests
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{
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protected override string ResourceAssembly => "osu.Game.Rulesets.Catch";
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[TestCase(3.8664391043534758, "diffcalc-test")]
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[TestCase(3.8701854263563118d, "diffcalc-test")]
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public void Test(double expected, string name)
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=> base.Test(expected, name);
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protected override LegacyDifficultyCalculator CreateDifficultyCalculator(WorkingBeatmap beatmap) => new CatchLegacyDifficultyCalculator(new CatchRuleset(), beatmap);
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protected override LegacyDifficultyCalculator CreateDifficultyCalculator(WorkingBeatmap beatmap) => new CatchDifficultyCalculator(new CatchRuleset(), beatmap);
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protected override Ruleset CreateRuleset() => new CatchRuleset();
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}
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@ -110,7 +110,7 @@ namespace osu.Game.Rulesets.Catch
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public override Drawable CreateIcon() => new SpriteIcon { Icon = FontAwesome.fa_osu_fruits_o };
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public override LegacyDifficultyCalculator CreateDifficultyCalculator(WorkingBeatmap beatmap) => new CatchLegacyDifficultyCalculator(this, beatmap);
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public override LegacyDifficultyCalculator CreateDifficultyCalculator(WorkingBeatmap beatmap) => new CatchDifficultyCalculator(this, beatmap);
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public override int? LegacyID => 2;
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@ -2,7 +2,6 @@
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// See the LICENCE file in the repository root for full licence text.
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using osu.Game.Rulesets.Difficulty;
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using osu.Game.Rulesets.Mods;
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namespace osu.Game.Rulesets.Catch.Difficulty
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{
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@ -10,10 +9,5 @@ namespace osu.Game.Rulesets.Catch.Difficulty
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{
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public double ApproachRate;
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public int MaxCombo;
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public CatchDifficultyAttributes(Mod[] mods, double starRating)
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: base(mods, starRating)
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{
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}
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}
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}
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@ -0,0 +1,86 @@
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// 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;
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using System.Collections.Generic;
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using System.Linq;
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using osu.Game.Beatmaps;
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using osu.Game.Rulesets.Catch.Difficulty.Preprocessing;
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using osu.Game.Rulesets.Catch.Difficulty.Skills;
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using osu.Game.Rulesets.Catch.Objects;
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using osu.Game.Rulesets.Catch.UI;
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using osu.Game.Rulesets.Difficulty;
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using osu.Game.Rulesets.Difficulty.Preprocessing;
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using osu.Game.Rulesets.Difficulty.Skills;
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using osu.Game.Rulesets.Mods;
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namespace osu.Game.Rulesets.Catch.Difficulty
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{
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public class CatchDifficultyCalculator : DifficultyCalculator
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{
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private const double star_scaling_factor = 0.145;
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protected override int SectionLength => 750;
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private readonly float halfCatchWidth;
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public CatchDifficultyCalculator(Ruleset ruleset, WorkingBeatmap beatmap)
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: base(ruleset, beatmap)
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{
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var catcher = new CatcherArea.Catcher(beatmap.BeatmapInfo.BaseDifficulty);
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halfCatchWidth = catcher.CatchWidth * 0.5f;
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}
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protected override DifficultyAttributes CreateDifficultyAttributes(IBeatmap beatmap, Mod[] mods, Skill[] skills, double clockRate)
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{
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if (beatmap.HitObjects.Count == 0)
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return new CatchDifficultyAttributes { Mods = mods };
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// this is the same as osu!, so there's potential to share the implementation... maybe
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double preempt = BeatmapDifficulty.DifficultyRange(beatmap.BeatmapInfo.BaseDifficulty.ApproachRate, 1800, 1200, 450) / clockRate;
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return new CatchDifficultyAttributes
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{
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StarRating = Math.Sqrt(skills[0].DifficultyValue()) * star_scaling_factor,
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Mods = mods,
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ApproachRate = preempt > 1200.0 ? -(preempt - 1800.0) / 120.0 : -(preempt - 1200.0) / 150.0 + 5.0,
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MaxCombo = beatmap.HitObjects.Count(h => h is Fruit) + beatmap.HitObjects.OfType<JuiceStream>().SelectMany(j => j.NestedHitObjects).Count(h => !(h is TinyDroplet))
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};
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}
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protected override IEnumerable<DifficultyHitObject> CreateDifficultyHitObjects(IBeatmap beatmap, double clockRate)
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{
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CatchHitObject lastObject = null;
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foreach (var hitObject in beatmap.HitObjects.OfType<CatchHitObject>())
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{
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if (lastObject == null)
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{
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lastObject = hitObject;
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continue;
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}
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switch (hitObject)
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{
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// We want to only consider fruits that contribute to the combo. Droplets are addressed as accuracy and spinners are not relevant for "skill" calculations.
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case Fruit fruit:
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yield return new CatchDifficultyHitObject(fruit, lastObject, clockRate, halfCatchWidth);
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lastObject = hitObject;
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break;
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case JuiceStream _:
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foreach (var nested in hitObject.NestedHitObjects.OfType<CatchHitObject>().Where(o => !(o is TinyDroplet)))
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{
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yield return new CatchDifficultyHitObject(nested, lastObject, clockRate, halfCatchWidth);
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lastObject = nested;
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}
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break;
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}
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}
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}
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protected override Skill[] CreateSkills(IBeatmap beatmap) => new Skill[]
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{
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new Movement(),
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};
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}
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}
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@ -1,130 +0,0 @@
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// 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;
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using osu.Game.Rulesets.Catch.Objects;
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using osu.Game.Rulesets.Catch.UI;
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using osuTK;
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namespace osu.Game.Rulesets.Catch.Difficulty
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{
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public class CatchDifficultyHitObject
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{
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internal static readonly double DECAY_BASE = 0.20;
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private const float normalized_hitobject_radius = 41.0f;
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private const float absolute_player_positioning_error = 16f;
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private readonly float playerPositioningError;
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internal CatchHitObject BaseHitObject;
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/// <summary>
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/// Measures jump difficulty. CtB doesn't have something like button pressing speed or accuracy
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/// </summary>
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internal double Strain = 1;
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/// <summary>
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/// This is required to keep track of lazy player movement (always moving only as far as necessary)
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/// Without this quick repeat sliders / weirdly shaped streams might become ridiculously overrated
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/// </summary>
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internal float PlayerPositionOffset;
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internal float LastMovement;
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internal float NormalizedPosition;
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internal float ActualNormalizedPosition => NormalizedPosition + PlayerPositionOffset;
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internal CatchDifficultyHitObject(CatchHitObject baseHitObject, float catcherWidthHalf)
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{
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BaseHitObject = baseHitObject;
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// We will scale everything by this factor, so we can assume a uniform CircleSize among beatmaps.
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float scalingFactor = normalized_hitobject_radius / catcherWidthHalf;
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playerPositioningError = absolute_player_positioning_error; // * scalingFactor;
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NormalizedPosition = baseHitObject.X * CatchPlayfield.BASE_WIDTH * scalingFactor;
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}
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private const double direction_change_bonus = 12.5;
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internal void CalculateStrains(CatchDifficultyHitObject previousHitObject, double timeRate)
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{
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// Rather simple, but more specialized things are inherently inaccurate due to the big difference playstyles and opinions make.
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// See Taiko feedback thread.
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double timeElapsed = (BaseHitObject.StartTime - previousHitObject.BaseHitObject.StartTime) / timeRate;
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double decay = Math.Pow(DECAY_BASE, timeElapsed / 1000);
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// Update new position with lazy movement.
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PlayerPositionOffset =
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MathHelper.Clamp(
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previousHitObject.ActualNormalizedPosition,
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NormalizedPosition - (normalized_hitobject_radius - playerPositioningError),
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NormalizedPosition + (normalized_hitobject_radius - playerPositioningError)) // Obtain new lazy position, but be stricter by allowing for an error of a certain degree of the player.
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- NormalizedPosition; // Subtract HitObject position to obtain offset
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LastMovement = DistanceTo(previousHitObject);
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double addition = spacingWeight(LastMovement);
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if (NormalizedPosition < previousHitObject.NormalizedPosition)
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{
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LastMovement = -LastMovement;
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}
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CatchHitObject previousHitCircle = previousHitObject.BaseHitObject;
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double additionBonus = 0;
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double sqrtTime = Math.Sqrt(Math.Max(timeElapsed, 25));
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// Direction changes give an extra point!
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if (Math.Abs(LastMovement) > 0.1)
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{
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if (Math.Abs(previousHitObject.LastMovement) > 0.1 && Math.Sign(LastMovement) != Math.Sign(previousHitObject.LastMovement))
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{
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double bonus = direction_change_bonus / sqrtTime;
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// Weight bonus by how
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double bonusFactor = Math.Min(playerPositioningError, Math.Abs(LastMovement)) / playerPositioningError;
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// We want time to play a role twice here!
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addition += bonus * bonusFactor;
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// Bonus for tougher direction switches and "almost" hyperdashes at this point
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if (previousHitCircle != null && previousHitCircle.DistanceToHyperDash <= 10.0f / CatchPlayfield.BASE_WIDTH)
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{
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additionBonus += 0.3 * bonusFactor;
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}
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}
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// Base bonus for every movement, giving some weight to streams.
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addition += 7.5 * Math.Min(Math.Abs(LastMovement), normalized_hitobject_radius * 2) / (normalized_hitobject_radius * 6) / sqrtTime;
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}
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// Bonus for "almost" hyperdashes at corner points
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if (previousHitCircle != null && previousHitCircle.DistanceToHyperDash <= 10.0f / CatchPlayfield.BASE_WIDTH)
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{
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if (!previousHitCircle.HyperDash)
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{
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additionBonus += 1.0;
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}
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else
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{
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// After a hyperdash we ARE in the correct position. Always!
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PlayerPositionOffset = 0;
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}
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addition *= 1.0 + additionBonus * ((10 - previousHitCircle.DistanceToHyperDash * CatchPlayfield.BASE_WIDTH) / 10);
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}
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addition *= 850.0 / Math.Max(timeElapsed, 25);
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Strain = previousHitObject.Strain * decay + addition;
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}
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private static double spacingWeight(float distance)
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{
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return Math.Pow(distance, 1.3) / 500;
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}
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internal float DistanceTo(CatchDifficultyHitObject other)
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{
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return Math.Abs(ActualNormalizedPosition - other.ActualNormalizedPosition);
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}
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}
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}
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@ -1,148 +0,0 @@
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// 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;
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using System.Collections.Generic;
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using System.Linq;
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using osu.Game.Beatmaps;
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using osu.Game.Rulesets.Difficulty;
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using osu.Game.Rulesets.Mods;
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using osu.Game.Rulesets.Catch.Objects;
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using osu.Game.Rulesets.Catch.UI;
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namespace osu.Game.Rulesets.Catch.Difficulty
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{
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public class CatchLegacyDifficultyCalculator : LegacyDifficultyCalculator
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{
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/// <summary>
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/// In milliseconds. For difficulty calculation we will only look at the highest strain value in each time interval of size STRAIN_STEP.
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/// This is to eliminate higher influence of stream over aim by simply having more HitObjects with high strain.
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/// The higher this value, the less strains there will be, indirectly giving long beatmaps an advantage.
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/// </summary>
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private const double strain_step = 750;
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/// <summary>
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/// The weighting of each strain value decays to this number * it's previous value
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/// </summary>
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private const double decay_weight = 0.94;
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private const double star_scaling_factor = 0.145;
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public CatchLegacyDifficultyCalculator(Ruleset ruleset, WorkingBeatmap beatmap)
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: base(ruleset, beatmap)
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{
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}
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protected override DifficultyAttributes Calculate(IBeatmap beatmap, Mod[] mods, double clockRate)
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{
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if (!beatmap.HitObjects.Any())
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return new CatchDifficultyAttributes(mods, 0);
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var catcher = new CatcherArea.Catcher(beatmap.BeatmapInfo.BaseDifficulty);
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float halfCatchWidth = catcher.CatchWidth * 0.5f;
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var difficultyHitObjects = new List<CatchDifficultyHitObject>();
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foreach (var hitObject in beatmap.HitObjects)
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{
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switch (hitObject)
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{
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// We want to only consider fruits that contribute to the combo. Droplets are addressed as accuracy and spinners are not relevant for "skill" calculations.
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case Fruit fruit:
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difficultyHitObjects.Add(new CatchDifficultyHitObject(fruit, halfCatchWidth));
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break;
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case JuiceStream _:
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difficultyHitObjects.AddRange(hitObject.NestedHitObjects.OfType<CatchHitObject>().Where(o => !(o is TinyDroplet)).Select(o => new CatchDifficultyHitObject(o, halfCatchWidth)));
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break;
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}
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}
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difficultyHitObjects.Sort((a, b) => a.BaseHitObject.StartTime.CompareTo(b.BaseHitObject.StartTime));
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if (!calculateStrainValues(difficultyHitObjects, clockRate))
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return new CatchDifficultyAttributes(mods, 0);
|
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|
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// this is the same as osu!, so there's potential to share the implementation... maybe
|
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double preempt = BeatmapDifficulty.DifficultyRange(beatmap.BeatmapInfo.BaseDifficulty.ApproachRate, 1800, 1200, 450) / clockRate;
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double starRating = Math.Sqrt(calculateDifficulty(difficultyHitObjects, clockRate)) * star_scaling_factor;
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|
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return new CatchDifficultyAttributes(mods, starRating)
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{
|
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ApproachRate = preempt > 1200.0 ? -(preempt - 1800.0) / 120.0 : -(preempt - 1200.0) / 150.0 + 5.0,
|
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MaxCombo = difficultyHitObjects.Count
|
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};
|
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}
|
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|
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private bool calculateStrainValues(List<CatchDifficultyHitObject> objects, double timeRate)
|
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{
|
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CatchDifficultyHitObject lastObject = null;
|
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|
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if (!objects.Any()) return false;
|
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|
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// Traverse hitObjects in pairs to calculate the strain value of NextHitObject from the strain value of CurrentHitObject and environment.
|
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foreach (var currentObject in objects)
|
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{
|
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if (lastObject != null)
|
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currentObject.CalculateStrains(lastObject, timeRate);
|
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|
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lastObject = currentObject;
|
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}
|
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|
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return true;
|
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}
|
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|
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private double calculateDifficulty(List<CatchDifficultyHitObject> objects, double timeRate)
|
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{
|
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// The strain step needs to be adjusted for the algorithm to be considered equal with speed changing mods
|
||||
double actualStrainStep = strain_step * timeRate;
|
||||
|
||||
// Find the highest strain value within each strain step
|
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var highestStrains = new List<double>();
|
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double intervalEndTime = actualStrainStep;
|
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double maximumStrain = 0; // We need to keep track of the maximum strain in the current interval
|
||||
|
||||
CatchDifficultyHitObject previousHitObject = null;
|
||||
foreach (CatchDifficultyHitObject hitObject in objects)
|
||||
{
|
||||
// While we are beyond the current interval push the currently available maximum to our strain list
|
||||
while (hitObject.BaseHitObject.StartTime > intervalEndTime)
|
||||
{
|
||||
highestStrains.Add(maximumStrain);
|
||||
|
||||
// The maximum strain of the next interval is not zero by default! We need to take the last hitObject we encountered, take its strain and apply the decay
|
||||
// until the beginning of the next interval.
|
||||
if (previousHitObject == null)
|
||||
{
|
||||
maximumStrain = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
double decay = Math.Pow(CatchDifficultyHitObject.DECAY_BASE, (intervalEndTime - previousHitObject.BaseHitObject.StartTime) / 1000);
|
||||
maximumStrain = previousHitObject.Strain * decay;
|
||||
}
|
||||
|
||||
// Go to the next time interval
|
||||
intervalEndTime += actualStrainStep;
|
||||
}
|
||||
|
||||
// Obtain maximum strain
|
||||
maximumStrain = Math.Max(hitObject.Strain, maximumStrain);
|
||||
|
||||
previousHitObject = hitObject;
|
||||
}
|
||||
|
||||
// Build the weighted sum over the highest strains for each interval
|
||||
double difficulty = 0;
|
||||
double weight = 1;
|
||||
highestStrains.Sort((a, b) => b.CompareTo(a)); // Sort from highest to lowest strain.
|
||||
|
||||
foreach (double strain in highestStrains)
|
||||
{
|
||||
difficulty += weight * strain;
|
||||
weight *= decay_weight;
|
||||
}
|
||||
|
||||
return difficulty;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,39 @@
|
||||
// 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 osu.Game.Rulesets.Catch.Objects;
|
||||
using osu.Game.Rulesets.Catch.UI;
|
||||
using osu.Game.Rulesets.Difficulty.Preprocessing;
|
||||
using osu.Game.Rulesets.Objects;
|
||||
|
||||
namespace osu.Game.Rulesets.Catch.Difficulty.Preprocessing
|
||||
{
|
||||
public class CatchDifficultyHitObject : DifficultyHitObject
|
||||
{
|
||||
private const float normalized_hitobject_radius = 41.0f;
|
||||
|
||||
public new CatchHitObject BaseObject => (CatchHitObject)base.BaseObject;
|
||||
|
||||
public new CatchHitObject LastObject => (CatchHitObject)base.LastObject;
|
||||
|
||||
public readonly float NormalizedPosition;
|
||||
|
||||
/// <summary>
|
||||
/// Milliseconds elapsed since the start time of the previous <see cref="CatchDifficultyHitObject"/>, with a minimum of 25ms.
|
||||
/// </summary>
|
||||
public readonly double StrainTime;
|
||||
|
||||
public CatchDifficultyHitObject(HitObject hitObject, HitObject lastObject, double clockRate, float halfCatcherWidth)
|
||||
: base(hitObject, lastObject, clockRate)
|
||||
{
|
||||
// We will scale everything by this factor, so we can assume a uniform CircleSize among beatmaps.
|
||||
var scalingFactor = normalized_hitobject_radius / halfCatcherWidth;
|
||||
|
||||
NormalizedPosition = BaseObject.X * CatchPlayfield.BASE_WIDTH * scalingFactor;
|
||||
|
||||
// Every strain interval is hard capped at the equivalent of 600 BPM streaming speed as a safety measure
|
||||
StrainTime = Math.Max(25, DeltaTime);
|
||||
}
|
||||
}
|
||||
}
|
||||
82
osu.Game.Rulesets.Catch/Difficulty/Skills/Movement.cs
Normal file
82
osu.Game.Rulesets.Catch/Difficulty/Skills/Movement.cs
Normal file
@ -0,0 +1,82 @@
|
||||
// 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 osu.Game.Rulesets.Catch.Difficulty.Preprocessing;
|
||||
using osu.Game.Rulesets.Catch.UI;
|
||||
using osu.Game.Rulesets.Difficulty.Preprocessing;
|
||||
using osu.Game.Rulesets.Difficulty.Skills;
|
||||
using osuTK;
|
||||
|
||||
namespace osu.Game.Rulesets.Catch.Difficulty.Skills
|
||||
{
|
||||
public class Movement : Skill
|
||||
{
|
||||
private const float absolute_player_positioning_error = 16f;
|
||||
private const float normalized_hitobject_radius = 41.0f;
|
||||
private const double direction_change_bonus = 12.5;
|
||||
|
||||
protected override double SkillMultiplier => 850;
|
||||
protected override double StrainDecayBase => 0.2;
|
||||
|
||||
protected override double DecayWeight => 0.94;
|
||||
|
||||
private float lastPlayerPosition;
|
||||
private float lastDistanceMoved;
|
||||
|
||||
protected override double StrainValueOf(DifficultyHitObject current)
|
||||
{
|
||||
var catchCurrent = (CatchDifficultyHitObject)current;
|
||||
|
||||
float playerPosition = MathHelper.Clamp(
|
||||
lastPlayerPosition,
|
||||
catchCurrent.NormalizedPosition - (normalized_hitobject_radius - absolute_player_positioning_error),
|
||||
catchCurrent.NormalizedPosition + (normalized_hitobject_radius - absolute_player_positioning_error)
|
||||
);
|
||||
|
||||
float distanceMoved = playerPosition - lastPlayerPosition;
|
||||
|
||||
double distanceAddition = Math.Pow(Math.Abs(distanceMoved), 1.3) / 500;
|
||||
double sqrtStrain = Math.Sqrt(catchCurrent.StrainTime);
|
||||
|
||||
double bonus = 0;
|
||||
|
||||
// Direction changes give an extra point!
|
||||
if (Math.Abs(distanceMoved) > 0.1)
|
||||
{
|
||||
if (Math.Abs(lastDistanceMoved) > 0.1 && Math.Sign(distanceMoved) != Math.Sign(lastDistanceMoved))
|
||||
{
|
||||
double bonusFactor = Math.Min(absolute_player_positioning_error, Math.Abs(distanceMoved)) / absolute_player_positioning_error;
|
||||
|
||||
distanceAddition += direction_change_bonus / sqrtStrain * bonusFactor;
|
||||
|
||||
// Bonus for tougher direction switches and "almost" hyperdashes at this point
|
||||
if (catchCurrent.LastObject.DistanceToHyperDash <= 10 / CatchPlayfield.BASE_WIDTH)
|
||||
bonus = 0.3 * bonusFactor;
|
||||
}
|
||||
|
||||
// Base bonus for every movement, giving some weight to streams.
|
||||
distanceAddition += 7.5 * Math.Min(Math.Abs(distanceMoved), normalized_hitobject_radius * 2) / (normalized_hitobject_radius * 6) / sqrtStrain;
|
||||
}
|
||||
|
||||
// Bonus for "almost" hyperdashes at corner points
|
||||
if (catchCurrent.LastObject.DistanceToHyperDash <= 10.0f / CatchPlayfield.BASE_WIDTH)
|
||||
{
|
||||
if (!catchCurrent.LastObject.HyperDash)
|
||||
bonus += 1.0;
|
||||
else
|
||||
{
|
||||
// After a hyperdash we ARE in the correct position. Always!
|
||||
playerPosition = catchCurrent.NormalizedPosition;
|
||||
}
|
||||
|
||||
distanceAddition *= 1.0 + bonus * ((10 - catchCurrent.LastObject.DistanceToHyperDash * CatchPlayfield.BASE_WIDTH) / 10);
|
||||
}
|
||||
|
||||
lastPlayerPosition = playerPosition;
|
||||
lastDistanceMoved = distanceMoved;
|
||||
|
||||
return distanceAddition / catchCurrent.StrainTime;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -13,11 +13,11 @@ namespace osu.Game.Rulesets.Mania.Tests
|
||||
{
|
||||
protected override string ResourceAssembly => "osu.Game.Rulesets.Mania";
|
||||
|
||||
[TestCase(2.2676066895468976, "diffcalc-test")]
|
||||
[TestCase(2.3683365342338796d, "diffcalc-test")]
|
||||
public void Test(double expected, string name)
|
||||
=> base.Test(expected, name);
|
||||
|
||||
protected override LegacyDifficultyCalculator CreateDifficultyCalculator(WorkingBeatmap beatmap) => new ManiaLegacyDifficultyCalculator(new ManiaRuleset(), beatmap);
|
||||
protected override LegacyDifficultyCalculator CreateDifficultyCalculator(WorkingBeatmap beatmap) => new ManiaDifficultyCalculator(new ManiaRuleset(), beatmap);
|
||||
|
||||
protected override Ruleset CreateRuleset() => new ManiaRuleset();
|
||||
}
|
||||
|
||||
@ -2,17 +2,11 @@
|
||||
// See the LICENCE file in the repository root for full licence text.
|
||||
|
||||
using osu.Game.Rulesets.Difficulty;
|
||||
using osu.Game.Rulesets.Mods;
|
||||
|
||||
namespace osu.Game.Rulesets.Mania.Difficulty
|
||||
{
|
||||
public class ManiaDifficultyAttributes : DifficultyAttributes
|
||||
{
|
||||
public double GreatHitWindow;
|
||||
|
||||
public ManiaDifficultyAttributes(Mod[] mods, double starRating)
|
||||
: base(mods, starRating)
|
||||
{
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
125
osu.Game.Rulesets.Mania/Difficulty/ManiaDifficultyCalculator.cs
Normal file
125
osu.Game.Rulesets.Mania/Difficulty/ManiaDifficultyCalculator.cs
Normal file
@ -0,0 +1,125 @@
|
||||
// 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;
|
||||
using osu.Game.Beatmaps;
|
||||
using osu.Game.Rulesets.Difficulty;
|
||||
using osu.Game.Rulesets.Difficulty.Preprocessing;
|
||||
using osu.Game.Rulesets.Difficulty.Skills;
|
||||
using osu.Game.Rulesets.Mania.Beatmaps;
|
||||
using osu.Game.Rulesets.Mania.Difficulty.Preprocessing;
|
||||
using osu.Game.Rulesets.Mania.Difficulty.Skills;
|
||||
using osu.Game.Rulesets.Mania.Mods;
|
||||
using osu.Game.Rulesets.Mods;
|
||||
|
||||
namespace osu.Game.Rulesets.Mania.Difficulty
|
||||
{
|
||||
public class ManiaDifficultyCalculator : DifficultyCalculator
|
||||
{
|
||||
private const double star_scaling_factor = 0.018;
|
||||
|
||||
private readonly bool isForCurrentRuleset;
|
||||
|
||||
public ManiaDifficultyCalculator(Ruleset ruleset, WorkingBeatmap beatmap)
|
||||
: base(ruleset, beatmap)
|
||||
{
|
||||
isForCurrentRuleset = beatmap.BeatmapInfo.Ruleset.Equals(ruleset.RulesetInfo);
|
||||
}
|
||||
|
||||
protected override DifficultyAttributes CreateDifficultyAttributes(IBeatmap beatmap, Mod[] mods, Skill[] skills, double clockRate)
|
||||
{
|
||||
if (beatmap.HitObjects.Count == 0)
|
||||
return new ManiaDifficultyAttributes { Mods = mods };
|
||||
|
||||
return new ManiaDifficultyAttributes
|
||||
{
|
||||
StarRating = difficultyValue(skills) * star_scaling_factor,
|
||||
Mods = mods,
|
||||
// Todo: This int cast is temporary to achieve 1:1 results with osu!stable, and should be removed in the future
|
||||
GreatHitWindow = (int)(beatmap.HitObjects.First().HitWindows.Great / 2) / clockRate,
|
||||
};
|
||||
}
|
||||
|
||||
private double difficultyValue(Skill[] skills)
|
||||
{
|
||||
// Preprocess the strains to find the maximum overall + individual (aggregate) strain from each section
|
||||
var overall = skills.OfType<Overall>().Single();
|
||||
var aggregatePeaks = new List<double>(Enumerable.Repeat(0.0, overall.StrainPeaks.Count));
|
||||
|
||||
foreach (var individual in skills.OfType<Individual>())
|
||||
{
|
||||
for (int i = 0; i < individual.StrainPeaks.Count; i++)
|
||||
{
|
||||
double aggregate = individual.StrainPeaks[i] + overall.StrainPeaks[i];
|
||||
|
||||
if (aggregate > aggregatePeaks[i])
|
||||
aggregatePeaks[i] = aggregate;
|
||||
}
|
||||
}
|
||||
|
||||
aggregatePeaks.Sort((a, b) => b.CompareTo(a)); // Sort from highest to lowest strain.
|
||||
|
||||
double difficulty = 0;
|
||||
double weight = 1;
|
||||
|
||||
// Difficulty is the weighted sum of the highest strains from every section.
|
||||
foreach (double strain in aggregatePeaks)
|
||||
{
|
||||
difficulty += strain * weight;
|
||||
weight *= 0.9;
|
||||
}
|
||||
|
||||
return difficulty;
|
||||
}
|
||||
|
||||
protected override IEnumerable<DifficultyHitObject> CreateDifficultyHitObjects(IBeatmap beatmap, double clockRate)
|
||||
{
|
||||
for (int i = 1; i < beatmap.HitObjects.Count; i++)
|
||||
yield return new ManiaDifficultyHitObject(beatmap.HitObjects[i], beatmap.HitObjects[i - 1], clockRate);
|
||||
}
|
||||
|
||||
protected override Skill[] CreateSkills(IBeatmap beatmap)
|
||||
{
|
||||
int columnCount = ((ManiaBeatmap)beatmap).TotalColumns;
|
||||
|
||||
var skills = new List<Skill> { new Overall(columnCount) };
|
||||
|
||||
for (int i = 0; i < columnCount; i++)
|
||||
skills.Add(new Individual(i, columnCount));
|
||||
|
||||
return skills.ToArray();
|
||||
}
|
||||
|
||||
protected override Mod[] DifficultyAdjustmentMods
|
||||
{
|
||||
get
|
||||
{
|
||||
var mods = new Mod[]
|
||||
{
|
||||
new ManiaModDoubleTime(),
|
||||
new ManiaModHalfTime(),
|
||||
new ManiaModEasy(),
|
||||
new ManiaModHardRock(),
|
||||
};
|
||||
|
||||
if (isForCurrentRuleset)
|
||||
return mods;
|
||||
|
||||
// if we are a convert, we can be played in any key mod.
|
||||
return mods.Concat(new Mod[]
|
||||
{
|
||||
new ManiaModKey1(),
|
||||
new ManiaModKey2(),
|
||||
new ManiaModKey3(),
|
||||
new ManiaModKey4(),
|
||||
new ManiaModKey5(),
|
||||
new ManiaModKey6(),
|
||||
new ManiaModKey7(),
|
||||
new ManiaModKey8(),
|
||||
new ManiaModKey9(),
|
||||
}).ToArray();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1,173 +0,0 @@
|
||||
// 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 osu.Game.Beatmaps;
|
||||
using osu.Game.Rulesets.Difficulty;
|
||||
using osu.Game.Rulesets.Mania.Beatmaps;
|
||||
using osu.Game.Rulesets.Mania.Mods;
|
||||
using osu.Game.Rulesets.Mania.Objects;
|
||||
using osu.Game.Rulesets.Mods;
|
||||
|
||||
namespace osu.Game.Rulesets.Mania.Difficulty
|
||||
{
|
||||
internal class ManiaLegacyDifficultyCalculator : LegacyDifficultyCalculator
|
||||
{
|
||||
private const double star_scaling_factor = 0.018;
|
||||
|
||||
/// <summary>
|
||||
/// In milliseconds. For difficulty calculation we will only look at the highest strain value in each time interval of size strain_step.
|
||||
/// This is to eliminate higher influence of stream over aim by simply having more HitObjects with high strain.
|
||||
/// The higher this value, the less strains there will be, indirectly giving long beatmaps an advantage.
|
||||
/// </summary>
|
||||
private const double strain_step = 400;
|
||||
|
||||
/// <summary>
|
||||
/// The weighting of each strain value decays to this number * it's previous value
|
||||
/// </summary>
|
||||
private const double decay_weight = 0.9;
|
||||
|
||||
private readonly bool isForCurrentRuleset;
|
||||
|
||||
public ManiaLegacyDifficultyCalculator(Ruleset ruleset, WorkingBeatmap beatmap)
|
||||
: base(ruleset, beatmap)
|
||||
{
|
||||
isForCurrentRuleset = beatmap.BeatmapInfo.Ruleset.Equals(ruleset.RulesetInfo);
|
||||
}
|
||||
|
||||
protected override DifficultyAttributes Calculate(IBeatmap beatmap, Mod[] mods, double clockRate)
|
||||
{
|
||||
if (!beatmap.HitObjects.Any())
|
||||
return new ManiaDifficultyAttributes(mods, 0);
|
||||
|
||||
var difficultyHitObjects = new List<ManiaHitObjectDifficulty>();
|
||||
|
||||
int columnCount = ((ManiaBeatmap)beatmap).TotalColumns;
|
||||
|
||||
// Sort DifficultyHitObjects by StartTime of the HitObjects - just to make sure.
|
||||
// Note: Stable sort is done so that the ordering of hitobjects with equal start times doesn't change
|
||||
difficultyHitObjects.AddRange(beatmap.HitObjects.Select(h => new ManiaHitObjectDifficulty((ManiaHitObject)h, columnCount)).OrderBy(h => h.BaseHitObject.StartTime));
|
||||
|
||||
if (!calculateStrainValues(difficultyHitObjects, clockRate))
|
||||
return new ManiaDifficultyAttributes(mods, 0);
|
||||
|
||||
double starRating = calculateDifficulty(difficultyHitObjects, clockRate) * star_scaling_factor;
|
||||
|
||||
return new ManiaDifficultyAttributes(mods, starRating)
|
||||
{
|
||||
// Todo: This int cast is temporary to achieve 1:1 results with osu!stable, and should be remoevd in the future
|
||||
GreatHitWindow = (int)(beatmap.HitObjects.First().HitWindows.Great / 2) / clockRate
|
||||
};
|
||||
}
|
||||
|
||||
private bool calculateStrainValues(List<ManiaHitObjectDifficulty> objects, double timeRate)
|
||||
{
|
||||
// Traverse hitObjects in pairs to calculate the strain value of NextHitObject from the strain value of CurrentHitObject and environment.
|
||||
using (var hitObjectsEnumerator = objects.GetEnumerator())
|
||||
{
|
||||
if (!hitObjectsEnumerator.MoveNext())
|
||||
return false;
|
||||
|
||||
ManiaHitObjectDifficulty current = hitObjectsEnumerator.Current;
|
||||
|
||||
// First hitObject starts at strain 1. 1 is the default for strain values, so we don't need to set it here. See DifficultyHitObject.
|
||||
while (hitObjectsEnumerator.MoveNext())
|
||||
{
|
||||
var next = hitObjectsEnumerator.Current;
|
||||
next?.CalculateStrains(current, timeRate);
|
||||
current = next;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
private double calculateDifficulty(List<ManiaHitObjectDifficulty> objects, double timeRate)
|
||||
{
|
||||
double actualStrainStep = strain_step * timeRate;
|
||||
|
||||
// Find the highest strain value within each strain step
|
||||
List<double> highestStrains = new List<double>();
|
||||
double intervalEndTime = actualStrainStep;
|
||||
double maximumStrain = 0; // We need to keep track of the maximum strain in the current interval
|
||||
|
||||
ManiaHitObjectDifficulty previousHitObject = null;
|
||||
foreach (var hitObject in objects)
|
||||
{
|
||||
// While we are beyond the current interval push the currently available maximum to our strain list
|
||||
while (hitObject.BaseHitObject.StartTime > intervalEndTime)
|
||||
{
|
||||
highestStrains.Add(maximumStrain);
|
||||
|
||||
// The maximum strain of the next interval is not zero by default! We need to take the last hitObject we encountered, take its strain and apply the decay
|
||||
// until the beginning of the next interval.
|
||||
if (previousHitObject == null)
|
||||
{
|
||||
maximumStrain = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
double individualDecay = Math.Pow(ManiaHitObjectDifficulty.INDIVIDUAL_DECAY_BASE, (intervalEndTime - previousHitObject.BaseHitObject.StartTime) / 1000);
|
||||
double overallDecay = Math.Pow(ManiaHitObjectDifficulty.OVERALL_DECAY_BASE, (intervalEndTime - previousHitObject.BaseHitObject.StartTime) / 1000);
|
||||
maximumStrain = previousHitObject.IndividualStrain * individualDecay + previousHitObject.OverallStrain * overallDecay;
|
||||
}
|
||||
|
||||
// Go to the next time interval
|
||||
intervalEndTime += actualStrainStep;
|
||||
}
|
||||
|
||||
// Obtain maximum strain
|
||||
double strain = hitObject.IndividualStrain + hitObject.OverallStrain;
|
||||
maximumStrain = Math.Max(strain, maximumStrain);
|
||||
|
||||
previousHitObject = hitObject;
|
||||
}
|
||||
|
||||
// Build the weighted sum over the highest strains for each interval
|
||||
double difficulty = 0;
|
||||
double weight = 1;
|
||||
highestStrains.Sort((a, b) => b.CompareTo(a)); // Sort from highest to lowest strain.
|
||||
|
||||
foreach (double strain in highestStrains)
|
||||
{
|
||||
difficulty += weight * strain;
|
||||
weight *= decay_weight;
|
||||
}
|
||||
|
||||
return difficulty;
|
||||
}
|
||||
|
||||
protected override Mod[] DifficultyAdjustmentMods
|
||||
{
|
||||
get
|
||||
{
|
||||
var mods = new Mod[]
|
||||
{
|
||||
new ManiaModDoubleTime(),
|
||||
new ManiaModHalfTime(),
|
||||
new ManiaModEasy(),
|
||||
new ManiaModHardRock(),
|
||||
};
|
||||
|
||||
if (isForCurrentRuleset)
|
||||
return mods;
|
||||
|
||||
// if we are a convert, we can be played in any key mod.
|
||||
return mods.Concat(new Mod[]
|
||||
{
|
||||
new ManiaModKey1(),
|
||||
new ManiaModKey2(),
|
||||
new ManiaModKey3(),
|
||||
new ManiaModKey4(),
|
||||
new ManiaModKey5(),
|
||||
new ManiaModKey6(),
|
||||
new ManiaModKey7(),
|
||||
new ManiaModKey8(),
|
||||
new ManiaModKey9(),
|
||||
}).ToArray();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,19 @@
|
||||
// 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 osu.Game.Rulesets.Difficulty.Preprocessing;
|
||||
using osu.Game.Rulesets.Mania.Objects;
|
||||
using osu.Game.Rulesets.Objects;
|
||||
|
||||
namespace osu.Game.Rulesets.Mania.Difficulty.Preprocessing
|
||||
{
|
||||
public class ManiaDifficultyHitObject : DifficultyHitObject
|
||||
{
|
||||
public new ManiaHitObject BaseObject => (ManiaHitObject)base.BaseObject;
|
||||
|
||||
public ManiaDifficultyHitObject(HitObject hitObject, HitObject lastObject, double clockRate)
|
||||
: base(hitObject, lastObject, clockRate)
|
||||
{
|
||||
}
|
||||
}
|
||||
}
|
||||
47
osu.Game.Rulesets.Mania/Difficulty/Skills/Individual.cs
Normal file
47
osu.Game.Rulesets.Mania/Difficulty/Skills/Individual.cs
Normal file
@ -0,0 +1,47 @@
|
||||
// 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.Linq;
|
||||
using osu.Game.Rulesets.Difficulty.Preprocessing;
|
||||
using osu.Game.Rulesets.Difficulty.Skills;
|
||||
using osu.Game.Rulesets.Mania.Difficulty.Preprocessing;
|
||||
using osu.Game.Rulesets.Mania.Objects;
|
||||
|
||||
namespace osu.Game.Rulesets.Mania.Difficulty.Skills
|
||||
{
|
||||
public class Individual : Skill
|
||||
{
|
||||
protected override double SkillMultiplier => 1;
|
||||
protected override double StrainDecayBase => 0.125;
|
||||
|
||||
private readonly double[] holdEndTimes;
|
||||
|
||||
private readonly int column;
|
||||
|
||||
public Individual(int column, int columnCount)
|
||||
{
|
||||
this.column = column;
|
||||
|
||||
holdEndTimes = new double[columnCount];
|
||||
}
|
||||
|
||||
protected override double StrainValueOf(DifficultyHitObject current)
|
||||
{
|
||||
var maniaCurrent = (ManiaDifficultyHitObject)current;
|
||||
var endTime = (maniaCurrent.BaseObject as HoldNote)?.EndTime ?? maniaCurrent.BaseObject.StartTime;
|
||||
|
||||
try
|
||||
{
|
||||
if (maniaCurrent.BaseObject.Column != column)
|
||||
return 0;
|
||||
|
||||
// We give a slight bonus if something is held meanwhile
|
||||
return holdEndTimes.Any(t => t > endTime) ? 2.5 : 2;
|
||||
}
|
||||
finally
|
||||
{
|
||||
holdEndTimes[maniaCurrent.BaseObject.Column] = endTime;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
56
osu.Game.Rulesets.Mania/Difficulty/Skills/Overall.cs
Normal file
56
osu.Game.Rulesets.Mania/Difficulty/Skills/Overall.cs
Normal file
@ -0,0 +1,56 @@
|
||||
// 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 osu.Game.Rulesets.Difficulty.Preprocessing;
|
||||
using osu.Game.Rulesets.Difficulty.Skills;
|
||||
using osu.Game.Rulesets.Mania.Difficulty.Preprocessing;
|
||||
using osu.Game.Rulesets.Mania.Objects;
|
||||
|
||||
namespace osu.Game.Rulesets.Mania.Difficulty.Skills
|
||||
{
|
||||
public class Overall : Skill
|
||||
{
|
||||
protected override double SkillMultiplier => 1;
|
||||
protected override double StrainDecayBase => 0.3;
|
||||
|
||||
private readonly double[] holdEndTimes;
|
||||
|
||||
private readonly int columnCount;
|
||||
|
||||
public Overall(int columnCount)
|
||||
{
|
||||
this.columnCount = columnCount;
|
||||
|
||||
holdEndTimes = new double[columnCount];
|
||||
}
|
||||
|
||||
protected override double StrainValueOf(DifficultyHitObject current)
|
||||
{
|
||||
var maniaCurrent = (ManiaDifficultyHitObject)current;
|
||||
var endTime = (maniaCurrent.BaseObject as HoldNote)?.EndTime ?? maniaCurrent.BaseObject.StartTime;
|
||||
|
||||
double holdFactor = 1.0; // Factor in case something else is held
|
||||
double holdAddition = 0; // Addition to the current note in case it's a hold and has to be released awkwardly
|
||||
|
||||
for (int i = 0; i < columnCount; i++)
|
||||
{
|
||||
// If there is at least one other overlapping end or note, then we get an addition, buuuuuut...
|
||||
if (current.BaseObject.StartTime < holdEndTimes[i] && endTime > holdEndTimes[i])
|
||||
holdAddition = 1.0;
|
||||
|
||||
// ... this addition only is valid if there is _no_ other note with the same ending.
|
||||
// Releasing multiple notes at the same time is just as easy as releasing one
|
||||
if (endTime == holdEndTimes[i])
|
||||
holdAddition = 0;
|
||||
|
||||
// We give a slight bonus if something is held meanwhile
|
||||
if (holdEndTimes[i] > endTime)
|
||||
holdFactor = 1.25;
|
||||
}
|
||||
|
||||
holdEndTimes[maniaCurrent.BaseObject.Column] = endTime;
|
||||
|
||||
return (1 + holdAddition) * holdFactor;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -156,7 +156,7 @@ namespace osu.Game.Rulesets.Mania
|
||||
|
||||
public override Drawable CreateIcon() => new SpriteIcon { Icon = FontAwesome.fa_osu_mania_o };
|
||||
|
||||
public override LegacyDifficultyCalculator CreateDifficultyCalculator(WorkingBeatmap beatmap) => new ManiaLegacyDifficultyCalculator(this, beatmap);
|
||||
public override LegacyDifficultyCalculator CreateDifficultyCalculator(WorkingBeatmap beatmap) => new ManiaDifficultyCalculator(this, beatmap);
|
||||
|
||||
public override int? LegacyID => 3;
|
||||
|
||||
|
||||
@ -1,112 +0,0 @@
|
||||
// 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 osu.Game.Rulesets.Objects.Types;
|
||||
using System;
|
||||
|
||||
namespace osu.Game.Rulesets.Mania.Objects
|
||||
{
|
||||
internal class ManiaHitObjectDifficulty
|
||||
{
|
||||
/// <summary>
|
||||
/// Factor by how much individual / overall strain decays per second.
|
||||
/// </summary>
|
||||
/// <remarks>
|
||||
/// These values are results of tweaking a lot and taking into account general feedback.
|
||||
/// </remarks>
|
||||
internal const double INDIVIDUAL_DECAY_BASE = 0.125;
|
||||
internal const double OVERALL_DECAY_BASE = 0.30;
|
||||
|
||||
internal ManiaHitObject BaseHitObject;
|
||||
|
||||
private readonly int beatmapColumnCount;
|
||||
|
||||
private readonly double endTime;
|
||||
private readonly double[] heldUntil;
|
||||
|
||||
/// <summary>
|
||||
/// Measures jacks or more generally: repeated presses of the same button
|
||||
/// </summary>
|
||||
private readonly double[] individualStrains;
|
||||
|
||||
internal double IndividualStrain
|
||||
{
|
||||
get
|
||||
{
|
||||
return individualStrains[BaseHitObject.Column];
|
||||
}
|
||||
|
||||
set
|
||||
{
|
||||
individualStrains[BaseHitObject.Column] = value;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Measures note density in a way
|
||||
/// </summary>
|
||||
internal double OverallStrain = 1;
|
||||
|
||||
public ManiaHitObjectDifficulty(ManiaHitObject baseHitObject, int columnCount)
|
||||
{
|
||||
BaseHitObject = baseHitObject;
|
||||
|
||||
endTime = (baseHitObject as IHasEndTime)?.EndTime ?? baseHitObject.StartTime;
|
||||
|
||||
beatmapColumnCount = columnCount;
|
||||
heldUntil = new double[beatmapColumnCount];
|
||||
individualStrains = new double[beatmapColumnCount];
|
||||
|
||||
for (int i = 0; i < beatmapColumnCount; ++i)
|
||||
{
|
||||
individualStrains[i] = 0;
|
||||
heldUntil[i] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
internal void CalculateStrains(ManiaHitObjectDifficulty previousHitObject, double timeRate)
|
||||
{
|
||||
// TODO: Factor in holds
|
||||
double timeElapsed = (BaseHitObject.StartTime - previousHitObject.BaseHitObject.StartTime) / timeRate;
|
||||
double individualDecay = Math.Pow(INDIVIDUAL_DECAY_BASE, timeElapsed / 1000);
|
||||
double overallDecay = Math.Pow(OVERALL_DECAY_BASE, timeElapsed / 1000);
|
||||
|
||||
double holdFactor = 1.0; // Factor to all additional strains in case something else is held
|
||||
double holdAddition = 0; // Addition to the current note in case it's a hold and has to be released awkwardly
|
||||
|
||||
// Fill up the heldUntil array
|
||||
for (int i = 0; i < beatmapColumnCount; ++i)
|
||||
{
|
||||
heldUntil[i] = previousHitObject.heldUntil[i];
|
||||
|
||||
// If there is at least one other overlapping end or note, then we get an addition, buuuuuut...
|
||||
if (BaseHitObject.StartTime < heldUntil[i] && endTime > heldUntil[i])
|
||||
{
|
||||
holdAddition = 1.0;
|
||||
}
|
||||
|
||||
// ... this addition only is valid if there is _no_ other note with the same ending. Releasing multiple notes at the same time is just as easy as releasing 1
|
||||
if (endTime == heldUntil[i])
|
||||
{
|
||||
holdAddition = 0;
|
||||
}
|
||||
|
||||
// We give a slight bonus to everything if something is held meanwhile
|
||||
if (heldUntil[i] > endTime)
|
||||
{
|
||||
holdFactor = 1.25;
|
||||
}
|
||||
|
||||
// Decay individual strains
|
||||
individualStrains[i] = previousHitObject.individualStrains[i] * individualDecay;
|
||||
}
|
||||
|
||||
heldUntil[BaseHitObject.Column] = endTime;
|
||||
|
||||
// Increase individual strain in own column
|
||||
IndividualStrain += 2.0 * holdFactor;
|
||||
|
||||
OverallStrain = previousHitObject.OverallStrain * overallDecay + (1.0 + holdAddition) * holdFactor;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -14,6 +14,11 @@ namespace osu.Game.Rulesets.Difficulty.Skills
|
||||
/// </summary>
|
||||
public abstract class Skill
|
||||
{
|
||||
/// <summary>
|
||||
/// The peak strain for each <see cref="DifficultyCalculator.SectionLength"/> section of the beatmap.
|
||||
/// </summary>
|
||||
public IList<double> StrainPeaks => strainPeaks;
|
||||
|
||||
/// <summary>
|
||||
/// Strain values are multiplied by this number for the given skill. Used to balance the value of different skills between each other.
|
||||
/// </summary>
|
||||
@ -37,6 +42,7 @@ namespace osu.Game.Rulesets.Difficulty.Skills
|
||||
|
||||
private double currentStrain = 1; // We keep track of the strain level at all times throughout the beatmap.
|
||||
private double currentSectionPeak = 1; // We also keep track of the peak strain level in the current section.
|
||||
|
||||
private readonly List<double> strainPeaks = new List<double>();
|
||||
|
||||
/// <summary>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user