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Merge pull request #2803 from smoogipoo/more-diffcalc-attributes

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Move beatmap difficulty attributes to the difficulty calculators
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Dean Herbert 2018-06-25 20:04:45 +09:00 committed by GitHub
commit 6736f2988e
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9 changed files with 94 additions and 44 deletions
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18
osu.Game.Rulesets.Mania/Difficulty/ManiaDifficultyAttributes.cs Normal file
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@ -0,0 +1,18 @@
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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)
{
}
}
}

10
osu.Game.Rulesets.Mania/Difficulty/ManiaDifficultyCalculator.cs
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@ -39,6 +39,9 @@ namespace osu.Game.Rulesets.Mania.Difficulty
protected override DifficultyAttributes Calculate(IBeatmap beatmap, Mod[] mods, double timeRate)
{
if (!beatmap.HitObjects.Any())
return new ManiaDifficultyAttributes(mods, 0);
var difficultyHitObjects = new List<ManiaHitObjectDifficulty>();
int columnCount = ((ManiaBeatmap)beatmap).TotalColumns;
@ -50,9 +53,14 @@ namespace osu.Game.Rulesets.Mania.Difficulty
if (!calculateStrainValues(difficultyHitObjects, timeRate))
return new DifficultyAttributes(mods, 0);
double starRating = calculateDifficulty(difficultyHitObjects, timeRate) * star_scaling_factor;
return new DifficultyAttributes(mods, starRating);
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) / timeRate
};
}
private bool calculateStrainValues(List<ManiaHitObjectDifficulty> objects, double timeRate)

8
osu.Game.Rulesets.Mania/Difficulty/ManiaPerformanceCalculator.cs
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@ -13,6 +13,8 @@ namespace osu.Game.Rulesets.Mania.Difficulty
{
public class ManiaPerformanceCalculator : PerformanceCalculator
{
protected new ManiaDifficultyAttributes Attributes => (ManiaDifficultyAttributes)base.Attributes;
private Mod[] mods;
// Score after being scaled by non-difficulty-increasing mods
@ -105,14 +107,12 @@ namespace osu.Game.Rulesets.Mania.Difficulty
private double computeAccuracyValue(double strainValue)
{
// Todo: This int cast is temporary to achieve 1:1 results with osu!stable, and should be remoevd in the future
double hitWindowGreat = (int)(Beatmap.HitObjects.First().HitWindows.Great / 2) / TimeRate;
if (hitWindowGreat <= 0)
if (Attributes.GreatHitWindow <= 0)
return 0;
// Lots of arbitrary values from testing.
// Considering to use derivation from perfect accuracy in a probabilistic manner - assume normal distribution
double accuracyValue = Math.Max(0.0, 0.2 - (hitWindowGreat - 34) * 0.006667)
double accuracyValue = Math.Max(0.0, 0.2 - (Attributes.GreatHitWindow - 34) * 0.006667)
* strainValue
* Math.Pow(Math.Max(0.0, scaledScore - 960000) / 40000, 1.1);

3
osu.Game.Rulesets.Osu/Difficulty/OsuDifficultyAttributes.cs
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@ -10,6 +10,9 @@ namespace osu.Game.Rulesets.Osu.Difficulty
{
public double AimStrain;
public double SpeedStrain;
public double ApproachRate;
public double OverallDifficulty;
public int MaxCombo;
public OsuDifficultyAttributes(Mod[] mods, double starRating)
: base(mods, starRating)

16
osu.Game.Rulesets.Osu/Difficulty/OsuDifficultyCalculator.cs
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@ -25,6 +25,9 @@ namespace osu.Game.Rulesets.Osu.Difficulty
protected override DifficultyAttributes Calculate(IBeatmap beatmap, Mod[] mods, double timeRate)
{
if (!beatmap.HitObjects.Any())
return new OsuDifficultyAttributes(mods, 0);
OsuDifficultyBeatmap difficultyBeatmap = new OsuDifficultyBeatmap(beatmap.HitObjects.Cast<OsuHitObject>().ToList(), timeRate);
Skill[] skills =
{
@ -58,10 +61,21 @@ namespace osu.Game.Rulesets.Osu.Difficulty
double speedRating = Math.Sqrt(skills[1].DifficultyValue()) * difficulty_multiplier;
double starRating = aimRating + speedRating + Math.Abs(aimRating - speedRating) / 2;
// Todo: These int casts are temporary to achieve 1:1 results with osu!stable, and should be remoevd in the future
double hitWindowGreat = (int)(beatmap.HitObjects.First().HitWindows.Great / 2) / timeRate;
double preEmpt = (int)BeatmapDifficulty.DifficultyRange(beatmap.BeatmapInfo.BaseDifficulty.ApproachRate, 1800, 1200, 450) / timeRate;
int maxCombo = beatmap.HitObjects.Count();
// Add the ticks + tail of the slider. 1 is subtracted because the "headcircle" would be counted twice (once for the slider itself in the line above)
maxCombo += beatmap.HitObjects.OfType<Slider>().Sum(s => s.NestedHitObjects.Count - 1);
return new OsuDifficultyAttributes(mods, starRating)
{
AimStrain = aimRating,
SpeedStrain = speedRating
SpeedStrain = speedRating,
ApproachRate = preEmpt > 1200 ? (1800 - preEmpt) / 120 : (1200 - preEmpt) / 150 + 5,
OverallDifficulty = (80 - hitWindowGreat) / 6,
MaxCombo = maxCombo
};
}

39
osu.Game.Rulesets.Osu/Difficulty/OsuPerformanceCalculator.cs
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@ -22,16 +22,6 @@ namespace osu.Game.Rulesets.Osu.Difficulty
private Mod[] mods;
/// <summary>
/// Approach rate adjusted by mods.
/// </summary>
private double realApproachRate;
/// <summary>
/// Overall difficulty adjusted by mods.
/// </summary>
private double realOverallDifficulty;
private double accuracy;
private int scoreMaxCombo;
private int countGreat;
@ -63,13 +53,6 @@ namespace osu.Game.Rulesets.Osu.Difficulty
if (mods.Any(m => !m.Ranked))
return 0;
// Todo: These int casts are temporary to achieve 1:1 results with osu!stable, and should be remoevd in the future
double hitWindowGreat = (int)(Beatmap.HitObjects.First().HitWindows.Great / 2) / TimeRate;
double preEmpt = (int)BeatmapDifficulty.DifficultyRange(Beatmap.BeatmapInfo.BaseDifficulty.ApproachRate, 1800, 1200, 450) / TimeRate;
realApproachRate = preEmpt > 1200 ? (1800 - preEmpt) / 120 : (1200 - preEmpt) / 150 + 5;
realOverallDifficulty = (80 - hitWindowGreat) / 6;
// Custom multipliers for NoFail and SpunOut.
double multiplier = 1.12f; // This is being adjusted to keep the final pp value scaled around what it used to be when changing things
@ -94,8 +77,8 @@ namespace osu.Game.Rulesets.Osu.Difficulty
categoryRatings.Add("Aim", aimValue);
categoryRatings.Add("Speed", speedValue);
categoryRatings.Add("Accuracy", accuracyValue);
categoryRatings.Add("OD", realOverallDifficulty);
categoryRatings.Add("AR", realApproachRate);
categoryRatings.Add("OD", Attributes.OverallDifficulty);
categoryRatings.Add("AR", Attributes.ApproachRate);
categoryRatings.Add("Max Combo", beatmapMaxCombo);
}
@ -120,22 +103,22 @@ namespace osu.Game.Rulesets.Osu.Difficulty
aimValue *= Math.Min(Math.Pow(scoreMaxCombo, 0.8f) / Math.Pow(beatmapMaxCombo, 0.8f), 1.0f);
double approachRateFactor = 1.0f;
if (realApproachRate > 10.33f)
approachRateFactor += 0.45f * (realApproachRate - 10.33f);
else if (realApproachRate < 8.0f)
if (Attributes.ApproachRate > 10.33f)
approachRateFactor += 0.45f * (Attributes.ApproachRate - 10.33f);
else if (Attributes.ApproachRate < 8.0f)
{
// HD is worth more with lower ar!
if (mods.Any(h => h is OsuModHidden))
approachRateFactor += 0.02f * (8.0f - realApproachRate);
approachRateFactor += 0.02f * (8.0f - Attributes.ApproachRate);
else
approachRateFactor += 0.01f * (8.0f - realApproachRate);
approachRateFactor += 0.01f * (8.0f - Attributes.ApproachRate);
}
aimValue *= approachRateFactor;
// We want to give more reward for lower AR when it comes to aim and HD. This nerfs high AR and buffs lower AR.
if (mods.Any(h => h is OsuModHidden))
aimValue *= 1.02 + (11.0f - realApproachRate) / 50.0; // Gives a 1.04 bonus for AR10, a 1.06 bonus for AR9, a 1.02 bonus for AR11.
aimValue *= 1.02 + (11.0f - Attributes.ApproachRate) / 50.0; // Gives a 1.04 bonus for AR10, a 1.06 bonus for AR9, a 1.02 bonus for AR11.
if (mods.Any(h => h is OsuModFlashlight))
{
@ -146,7 +129,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty
// Scale the aim value with accuracy _slightly_
aimValue *= 0.5f + accuracy / 2.0f;
// It is important to also consider accuracy difficulty when doing that
aimValue *= 0.98f + Math.Pow(realOverallDifficulty, 2) / 2500;
aimValue *= 0.98f + Math.Pow(Attributes.OverallDifficulty, 2) / 2500;
return aimValue;
}
@ -172,7 +155,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty
// Scale the speed value with accuracy _slightly_
speedValue *= 0.5f + accuracy / 2.0f;
// It is important to also consider accuracy difficulty when doing that
speedValue *= 0.98f + Math.Pow(realOverallDifficulty, 2) / 2500;
speedValue *= 0.98f + Math.Pow(Attributes.OverallDifficulty, 2) / 2500;
return speedValue;
}
@ -194,7 +177,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty
// Lots of arbitrary values from testing.
// Considering to use derivation from perfect accuracy in a probabilistic manner - assume normal distribution
double accuracyValue = Math.Pow(1.52163f, realOverallDifficulty) * Math.Pow(betterAccuracyPercentage, 24) * 2.83f;
double accuracyValue = Math.Pow(1.52163f, Attributes.OverallDifficulty) * Math.Pow(betterAccuracyPercentage, 24) * 2.83f;
// Bonus for many hitcircles - it's harder to keep good accuracy up for longer
accuracyValue *= Math.Min(1.15f, Math.Pow(amountHitObjectsWithAccuracy / 1000.0f, 0.3f));

19
osu.Game.Rulesets.Taiko/Difficulty/TaikoDifficultyAttributes.cs Normal file
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@ -0,0 +1,19 @@
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using osu.Game.Rulesets.Difficulty;
using osu.Game.Rulesets.Mods;
namespace osu.Game.Rulesets.Taiko.Difficulty
{
public class TaikoDifficultyAttributes : DifficultyAttributes
{
public double GreatHitWindow;
public int MaxCombo;
public TaikoDifficultyAttributes(Mod[] mods, double starRating)
: base(mods, starRating)
{
}
}
}

11
osu.Game.Rulesets.Taiko/Difficulty/TaikoDifficultyCalculator.cs
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@ -3,6 +3,7 @@
using System;
using System.Collections.Generic;
using System.Linq;
using osu.Game.Beatmaps;
using osu.Game.Rulesets.Difficulty;
using osu.Game.Rulesets.Mods;
@ -34,6 +35,9 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
protected override DifficultyAttributes Calculate(IBeatmap beatmap, Mod[] mods, double timeRate)
{
if (!beatmap.HitObjects.Any())
return new TaikoDifficultyAttributes(mods, 0);
var difficultyHitObjects = new List<TaikoHitObjectDifficulty>();
foreach (var hitObject in beatmap.HitObjects)
@ -47,7 +51,12 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
double starRating = calculateDifficulty(difficultyHitObjects, timeRate) * star_scaling_factor;
return new DifficultyAttributes(mods, starRating);
return new TaikoDifficultyAttributes(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) / timeRate,
MaxCombo = beatmap.HitObjects.Count(h => h is Hit)
};
}
private bool calculateStrainValues(List<TaikoHitObjectDifficulty> objects, double timeRate)

14
osu.Game.Rulesets.Taiko/Difficulty/TaikoPerformanceCalculator.cs
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@ -8,13 +8,12 @@ using osu.Game.Beatmaps;
using osu.Game.Rulesets.Difficulty;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Scoring;
using osu.Game.Rulesets.Taiko.Objects;
namespace osu.Game.Rulesets.Taiko.Difficulty
{
public class TaikoPerformanceCalculator : PerformanceCalculator
{
private readonly int beatmapMaxCombo;
protected new TaikoDifficultyAttributes Attributes => (TaikoDifficultyAttributes)base.Attributes;
private Mod[] mods;
private int countGreat;
@ -25,7 +24,6 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
public TaikoPerformanceCalculator(Ruleset ruleset, WorkingBeatmap beatmap, Score score)
: base(ruleset, beatmap, score)
{
beatmapMaxCombo = Beatmap.HitObjects.Count(h => h is Hit);
}
public override double Calculate(Dictionary<string, double> categoryDifficulty = null)
@ -78,8 +76,8 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
strainValue *= Math.Pow(0.985, countMiss);
// Combo scaling
if (beatmapMaxCombo > 0)
strainValue *= Math.Min(Math.Pow(Score.MaxCombo, 0.5) / Math.Pow(beatmapMaxCombo, 0.5), 1.0);
if (Attributes.MaxCombo > 0)
strainValue *= Math.Min(Math.Pow(Score.MaxCombo, 0.5) / Math.Pow(Attributes.MaxCombo, 0.5), 1.0);
if (mods.Any(m => m is ModHidden))
strainValue *= 1.025;
@ -94,14 +92,12 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
private double computeAccuracyValue()
{
// Todo: This int cast is temporary to achieve 1:1 results with osu!stable, and should be remoevd in the future
double hitWindowGreat = (int)(Beatmap.HitObjects.First().HitWindows.Great / 2) / TimeRate;
if (hitWindowGreat <= 0)
if (Attributes.GreatHitWindow <= 0)
return 0;
// Lots of arbitrary values from testing.
// Considering to use derivation from perfect accuracy in a probabilistic manner - assume normal distribution
double accValue = Math.Pow(150.0 / hitWindowGreat, 1.1) * Math.Pow(Score.Accuracy, 15) * 22.0;
double accValue = Math.Pow(150.0 / Attributes.GreatHitWindow, 1.1) * Math.Pow(Score.Accuracy, 15) * 22.0;
// Bonus for many hitcircles - it's harder to keep good accuracy up for longer
return accValue * Math.Min(1.15, Math.Pow(totalHits / 1500.0, 0.3));