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Merge pull request #13986 from 02Naitsirk/display-sr-changes

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Implement total SR formula that better correlates with pp
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Dan Balasescu 2021-09-15 10:43:29 +09:00 committed by GitHub
commit 5c1e1d8150
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3 changed files with 13 additions and 6 deletions
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8
osu.Game.Rulesets.Osu.Tests/OsuDifficultyCalculatorTest.cs
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@ -15,13 +15,13 @@ namespace osu.Game.Rulesets.Osu.Tests
{
protected override string ResourceAssembly => "osu.Game.Rulesets.Osu";
[TestCase(6.7568168283591499d, "diffcalc-test")]
[TestCase(1.0348244046058293d, "zero-length-sliders")]
[TestCase(6.6634445062299665d, "diffcalc-test")]
[TestCase(1.0414203870195022d, "zero-length-sliders")]
public void Test(double expected, string name)
=> base.Test(expected, name);
[TestCase(8.4783236764532557d, "diffcalc-test")]
[TestCase(1.2708532136987165d, "zero-length-sliders")]
[TestCase(8.3858089051603368d, "diffcalc-test")]
[TestCase(1.2723279173428435d, "zero-length-sliders")]
public void TestClockRateAdjusted(double expected, string name)
=> Test(expected, name, new OsuModDoubleTime());

6
osu.Game.Rulesets.Osu/Difficulty/OsuDifficultyCalculator.cs
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@ -34,7 +34,11 @@ namespace osu.Game.Rulesets.Osu.Difficulty
double aimRating = Math.Sqrt(skills[0].DifficultyValue()) * difficulty_multiplier;
double speedRating = Math.Sqrt(skills[1].DifficultyValue()) * difficulty_multiplier;
double starRating = aimRating + speedRating + Math.Abs(aimRating - speedRating) / 2;
double baseAimPerformance = Math.Pow(5 * Math.Max(1, aimRating / 0.0675) - 4, 3) / 100000;
double baseSpeedPerformance = Math.Pow(5 * Math.Max(1, speedRating / 0.0675) - 4, 3) / 100000;
double basePerformance = Math.Pow(Math.Pow(baseAimPerformance, 1.1) + Math.Pow(baseSpeedPerformance, 1.1), 1 / 1.1);
double starRating = basePerformance > 0.00001 ? Math.Cbrt(1.12) * 0.027 * (Math.Cbrt(100000 / Math.Pow(2, 1 / 1.1) * basePerformance) + 4) : 0;
HitWindows hitWindows = new OsuHitWindows();
hitWindows.SetDifficulty(beatmap.BeatmapInfo.BaseDifficulty.OverallDifficulty);

5
osu.Game/Tests/Beatmaps/DifficultyCalculatorTest.cs
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@ -23,7 +23,10 @@ namespace osu.Game.Tests.Beatmaps
protected abstract string ResourceAssembly { get; }
protected void Test(double expected, string name, params Mod[] mods)
=> Assert.AreEqual(expected, CreateDifficultyCalculator(getBeatmap(name)).Calculate(mods).StarRating);
{
// Platform-dependent math functions (Pow, Cbrt, Exp, etc) may result in minute differences.
Assert.That(CreateDifficultyCalculator(getBeatmap(name)).Calculate(mods).StarRating, Is.EqualTo(expected).Within(0.00001));
}
private WorkingBeatmap getBeatmap(string name)
{