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Move mania difficulty attributes to ManiaDifficultyCalculator

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This commit is contained in:
smoogipoo 2018-06-14 16:25:44 +09:00
parent af218b3d8d
commit 22add2abc5
3 changed files with 28 additions and 5 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)
{
}
}
}

7
osu.Game.Rulesets.Mania/Difficulty/ManiaDifficultyCalculator.cs
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@ -47,9 +47,14 @@ 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);