mirror of https://github.com/ppy/osu
93 lines
3.7 KiB
C#
93 lines
3.7 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.Linq;
|
|
using osu.Game.Rulesets.Difficulty;
|
|
using osu.Game.Rulesets.Mods;
|
|
using osu.Game.Scoring;
|
|
using osu.Game.Scoring.Legacy;
|
|
|
|
namespace osu.Game.Rulesets.Catch.Difficulty
|
|
{
|
|
public class CatchPerformanceCalculator : PerformanceCalculator
|
|
{
|
|
private int num300;
|
|
private int num100;
|
|
private int num50;
|
|
private int numKatu;
|
|
private int numMiss;
|
|
|
|
public CatchPerformanceCalculator()
|
|
: base(new CatchRuleset())
|
|
{
|
|
}
|
|
|
|
protected override PerformanceAttributes CreatePerformanceAttributes(ScoreInfo score, DifficultyAttributes attributes)
|
|
{
|
|
var catchAttributes = (CatchDifficultyAttributes)attributes;
|
|
|
|
num300 = score.GetCount300() ?? 0; // HitResult.Great
|
|
num100 = score.GetCount100() ?? 0; // HitResult.LargeTickHit
|
|
num50 = score.GetCount50() ?? 0; // HitResult.SmallTickHit
|
|
numKatu = score.GetCountKatu() ?? 0; // HitResult.SmallTickMiss
|
|
numMiss = score.GetCountMiss() ?? 0; // HitResult.Miss PLUS HitResult.LargeTickMiss
|
|
|
|
// We are heavily relying on aim in catch the beat
|
|
double value = Math.Pow(5.0 * Math.Max(1.0, catchAttributes.StarRating / 0.0049) - 4.0, 2.0) / 100000.0;
|
|
|
|
// Longer maps are worth more. "Longer" means how many hits there are which can contribute to combo
|
|
int numTotalHits = totalComboHits();
|
|
|
|
double lengthBonus =
|
|
0.95 + 0.3 * Math.Min(1.0, numTotalHits / 2500.0) +
|
|
(numTotalHits > 2500 ? Math.Log10(numTotalHits / 2500.0) * 0.475 : 0.0);
|
|
value *= lengthBonus;
|
|
|
|
value *= Math.Pow(0.97, numMiss);
|
|
|
|
// Combo scaling
|
|
if (catchAttributes.MaxCombo > 0)
|
|
value *= Math.Min(Math.Pow(score.MaxCombo, 0.8) / Math.Pow(catchAttributes.MaxCombo, 0.8), 1.0);
|
|
|
|
double approachRate = catchAttributes.ApproachRate;
|
|
double approachRateFactor = 1.0;
|
|
if (approachRate > 9.0)
|
|
approachRateFactor += 0.1 * (approachRate - 9.0); // 10% for each AR above 9
|
|
if (approachRate > 10.0)
|
|
approachRateFactor += 0.1 * (approachRate - 10.0); // Additional 10% at AR 11, 30% total
|
|
else if (approachRate < 8.0)
|
|
approachRateFactor += 0.025 * (8.0 - approachRate); // 2.5% for each AR below 8
|
|
|
|
value *= approachRateFactor;
|
|
|
|
if (score.Mods.Any(m => m is ModHidden))
|
|
{
|
|
// Hiddens gives almost nothing on max approach rate, and more the lower it is
|
|
if (approachRate <= 10.0)
|
|
value *= 1.05 + 0.075 * (10.0 - approachRate); // 7.5% for each AR below 10
|
|
else if (approachRate > 10.0)
|
|
value *= 1.01 + 0.04 * (11.0 - Math.Min(11.0, approachRate)); // 5% at AR 10, 1% at AR 11
|
|
}
|
|
|
|
if (score.Mods.Any(m => m is ModFlashlight))
|
|
value *= 1.35 * lengthBonus;
|
|
|
|
value *= Math.Pow(accuracy(), 5.5);
|
|
|
|
if (score.Mods.Any(m => m is ModNoFail))
|
|
value *= Math.Max(0.90, 1.0 - 0.02 * numMiss);
|
|
|
|
return new CatchPerformanceAttributes
|
|
{
|
|
Total = value
|
|
};
|
|
}
|
|
|
|
private double accuracy() => totalHits() == 0 ? 0 : Math.Clamp((double)totalSuccessfulHits() / totalHits(), 0, 1);
|
|
private int totalHits() => num50 + num100 + num300 + numMiss + numKatu;
|
|
private int totalSuccessfulHits() => num50 + num100 + num300;
|
|
private int totalComboHits() => numMiss + num100 + num300;
|
|
}
|
|
}
|