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Code Issues Releases Wiki Activity

Use frost's miss count penalty

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apollo-dw 2021-12-16 18:37:57 +00:00
parent 489aa43b1b
commit bac4cfed50
1 changed files with 18 additions and 3 deletions
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21
osu.Game.Rulesets.Osu/Difficulty/OsuPerformanceCalculator.cs
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@ -102,7 +102,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty
aimValue *= lengthBonus; aimValue *= lengthBonus;
if (effectiveMissCount > 0) if (effectiveMissCount > 0)
aimValue *= Math.Pow(0.96, effectiveMissCount); aimValue *= calculateMissPenalty(effectiveMissCount);
double approachRateFactor = 0.0; double approachRateFactor = 0.0;
if (Attributes.ApproachRate > 10.33) if (Attributes.ApproachRate > 10.33)
@ -147,7 +147,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty
speedValue *= lengthBonus; speedValue *= lengthBonus;
if (effectiveMissCount > 0) if (effectiveMissCount > 0)
speedValue *= Math.Pow(0.96, effectiveMissCount); speedValue *= calculateMissPenalty(effectiveMissCount);
double approachRateFactor = 0.0; double approachRateFactor = 0.0;
if (Attributes.ApproachRate > 10.33) if (Attributes.ApproachRate > 10.33)
@ -229,7 +229,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty
flashlightValue *= 1.3; flashlightValue *= 1.3;
if (effectiveMissCount > 0) if (effectiveMissCount > 0)
flashlightValue *= Math.Pow(0.96, effectiveMissCount); flashlightValue *= calculateMissPenalty(effectiveMissCount);
// Combo scaling. // Combo scaling.
if (Attributes.MaxCombo > 0) if (Attributes.MaxCombo > 0)
@ -265,6 +265,21 @@ namespace osu.Game.Rulesets.Osu.Difficulty
return Math.Max(countMiss, (int)Math.Floor(comboBasedMissCount)); return Math.Max(countMiss, (int)Math.Floor(comboBasedMissCount));
} }
private double calculateMissPenalty(double missCount)
{
double leniency = 2.0;
if (missCount > totalHits - leniency)
return 0;
double missApprox = erfInvApprox((totalHits - leniency - missCount) / totalHits);
double fcApprox = erfInvApprox((totalHits - leniency) / totalHits);
return Math.Pow(missApprox / fcApprox, 1.5);
}
private double logit(double x) => Math.Log(x / (1 - x));
private double erfInvApprox(double x) => (Math.Sqrt(Math.PI) / 4) * logit((x + 1) / 2);
private int totalHits => countGreat + countOk + countMeh + countMiss; private int totalHits => countGreat + countOk + countMeh + countMiss;
private int totalSuccessfulHits => countGreat + countOk + countMeh; private int totalSuccessfulHits => countGreat + countOk + countMeh;
} }