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Merge pull request #20558 from vunyunt/stamina-available-fingers

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Basic tl-tapping consideration for stamina
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Dan Balasescu 2022-11-07 09:55:54 +09:00 committed by GitHub
commit a2b4e5b658
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10 changed files with 78 additions and 49 deletions
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8
osu.Game.Rulesets.Taiko.Tests/TaikoDifficultyCalculatorTest.cs
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@ -16,13 +16,13 @@ namespace osu.Game.Rulesets.Taiko.Tests
{
protected override string ResourceAssembly => "osu.Game.Rulesets.Taiko";
[TestCase(3.1098944660126882d, 200, "diffcalc-test")]
[TestCase(3.1098944660126882d, 200, "diffcalc-test-strong")]
[TestCase(3.0920212594351191d, 200, "diffcalc-test")]
[TestCase(3.0920212594351191d, 200, "diffcalc-test-strong")]
public void Test(double expectedStarRating, int expectedMaxCombo, string name)
=> base.Test(expectedStarRating, expectedMaxCombo, name);
[TestCase(4.0974106752474251d, 200, "diffcalc-test")]
[TestCase(4.0974106752474251d, 200, "diffcalc-test-strong")]
[TestCase(4.0789820318081444d, 200, "diffcalc-test")]
[TestCase(4.0789820318081444d, 200, "diffcalc-test-strong")]
public void TestClockRateAdjusted(double expectedStarRating, int expectedMaxCombo, string name)
=> Test(expectedStarRating, expectedMaxCombo, name, new TaikoModDoubleTime());

6
osu.Game.Rulesets.Taiko/Difficulty/Evaluators/ColourEvaluator.cs
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@ -54,11 +54,11 @@ namespace osu.Game.Rulesets.Taiko.Difficulty.Evaluators
TaikoDifficultyHitObjectColour colour = ((TaikoDifficultyHitObject)hitObject).Colour;
double difficulty = 0.0d;
if (colour.MonoStreak != null) // Difficulty for MonoStreak
if (colour.MonoStreak?.FirstHitObject == hitObject) // Difficulty for MonoStreak
difficulty += EvaluateDifficultyOf(colour.MonoStreak);
if (colour.AlternatingMonoPattern != null) // Difficulty for AlternatingMonoPattern
if (colour.AlternatingMonoPattern?.FirstHitObject == hitObject) // Difficulty for AlternatingMonoPattern
difficulty += EvaluateDifficultyOf(colour.AlternatingMonoPattern);
if (colour.RepeatingHitPattern != null) // Difficulty for RepeatingHitPattern
if (colour.RepeatingHitPattern?.FirstHitObject == hitObject) // Difficulty for RepeatingHitPattern
difficulty += EvaluateDifficultyOf(colour.RepeatingHitPattern);
return difficulty;

42
osu.Game.Rulesets.Taiko/Difficulty/Evaluators/StaminaEvaluator.cs
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@ -11,22 +11,43 @@ namespace osu.Game.Rulesets.Taiko.Difficulty.Evaluators
public class StaminaEvaluator
{
/// <summary>
/// Applies a speed bonus dependent on the time since the last hit performed using this key.
/// Applies a speed bonus dependent on the time since the last hit performed using this finger.
/// </summary>
/// <param name="interval">The interval between the current and previous note hit using the same key.</param>
/// <param name="interval">The interval between the current and previous note hit using the same finger.</param>
private static double speedBonus(double interval)
{
// Cap to 600bpm 1/4, 25ms note interval, 50ms key interval
// Interval will be capped at a very small value to avoid infinite/negative speed bonuses.
// TODO - This is a temporary measure as we need to implement methods of detecting playstyle-abuse of SpeedBonus.
interval = Math.Max(interval, 50);
// Interval is capped at a very small value to prevent infinite values.
interval = Math.Max(interval, 1);
return 30 / interval;
}
/// <summary>
/// Determines the number of fingers available to hit the current <see cref="TaikoDifficultyHitObject"/>.
/// Any mono notes that is more than 300ms apart from a colour change will be considered to have more than 2
/// fingers available, since players can hit the same key with multiple fingers.
/// </summary>
private static int availableFingersFor(TaikoDifficultyHitObject hitObject)
{
DifficultyHitObject? previousColourChange = hitObject.Colour.PreviousColourChange;
DifficultyHitObject? nextColourChange = hitObject.Colour.NextColourChange;
if (previousColourChange != null && hitObject.StartTime - previousColourChange.StartTime < 300)
{
return 2;
}
if (nextColourChange != null && nextColourChange.StartTime - hitObject.StartTime < 300)
{
return 2;
}
return 4;
}
/// <summary>
/// Evaluates the minimum mechanical stamina required to play the current object. This is calculated using the
/// maximum possible interval between two hits using the same key, by alternating 2 keys for each colour.
/// maximum possible interval between two hits using the same key, by alternating available fingers for each colour.
/// </summary>
public static double EvaluateDifficultyOf(DifficultyHitObject current)
{
@ -35,13 +56,14 @@ namespace osu.Game.Rulesets.Taiko.Difficulty.Evaluators
return 0.0;
}
// Find the previous hit object hit by the current key, which is two notes of the same colour prior.
// Find the previous hit object hit by the current finger, which is n notes prior, n being the number of
// available fingers.
TaikoDifficultyHitObject taikoCurrent = (TaikoDifficultyHitObject)current;
TaikoDifficultyHitObject? keyPrevious = taikoCurrent.PreviousMono(1);
TaikoDifficultyHitObject? keyPrevious = taikoCurrent.PreviousMono(availableFingersFor(taikoCurrent) - 1);
if (keyPrevious == null)
{
// There is no previous hit object hit by the current key
// There is no previous hit object hit by the current finger
return 0.0;
}

5
osu.Game.Rulesets.Taiko/Difficulty/Preprocessing/Colour/Data/MonoStreak.cs
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@ -33,6 +33,11 @@ namespace osu.Game.Rulesets.Taiko.Difficulty.Preprocessing.Colour.Data
/// </summary>
public TaikoDifficultyHitObject FirstHitObject => HitObjects[0];
/// <summary>
/// The last <see cref="TaikoDifficultyHitObject"/> in this <see cref="MonoStreak"/>.
/// </summary>
public TaikoDifficultyHitObject LastHitObject => HitObjects[^1];
/// <summary>
/// The hit type of all objects encoded within this <see cref="MonoStreak"/>
/// </summary>

2
osu.Game.Rulesets.Taiko/Difficulty/Preprocessing/Colour/Data/RepeatingHitPatterns.cs
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@ -23,7 +23,7 @@ namespace osu.Game.Rulesets.Taiko.Difficulty.Preprocessing.Colour.Data
public readonly List<AlternatingMonoPattern> AlternatingMonoPatterns = new List<AlternatingMonoPattern>();
/// <summary>
/// The parent <see cref="TaikoDifficultyHitObject"/> in this <see cref="RepeatingHitPatterns"/>
/// The first <see cref="TaikoDifficultyHitObject"/> in this <see cref="RepeatingHitPatterns"/>
/// </summary>
public TaikoDifficultyHitObject FirstHitObject => AlternatingMonoPatterns[0].FirstHitObject;

17
osu.Game.Rulesets.Taiko/Difficulty/Preprocessing/Colour/TaikoColourDifficultyPreprocessor.cs
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@ -15,19 +15,15 @@ namespace osu.Game.Rulesets.Taiko.Difficulty.Preprocessing.Colour
{
/// <summary>
/// Processes and encodes a list of <see cref="TaikoDifficultyHitObject"/>s into a list of <see cref="TaikoDifficultyHitObjectColour"/>s,
/// assigning the appropriate <see cref="TaikoDifficultyHitObjectColour"/>s to each <see cref="TaikoDifficultyHitObject"/>,
/// and pre-evaluating colour difficulty of each <see cref="TaikoDifficultyHitObject"/>.
/// assigning the appropriate <see cref="TaikoDifficultyHitObjectColour"/>s to each <see cref="TaikoDifficultyHitObject"/>.
/// </summary>
public static void ProcessAndAssign(List<DifficultyHitObject> hitObjects)
{
List<RepeatingHitPatterns> hitPatterns = encode(hitObjects);
// Assign indexing and encoding data to all relevant objects. Only the first note of each encoding type is
// assigned with the relevant encodings.
// Assign indexing and encoding data to all relevant objects.
foreach (var repeatingHitPattern in hitPatterns)
{
repeatingHitPattern.FirstHitObject.Colour.RepeatingHitPattern = repeatingHitPattern;
// The outermost loop is kept a ForEach loop since it doesn't need index information, and we want to
// keep i and j for AlternatingMonoPattern's and MonoStreak's index respectively, to keep it in line with
// documentation.
@ -36,14 +32,19 @@ namespace osu.Game.Rulesets.Taiko.Difficulty.Preprocessing.Colour
AlternatingMonoPattern monoPattern = repeatingHitPattern.AlternatingMonoPatterns[i];
monoPattern.Parent = repeatingHitPattern;
monoPattern.Index = i;
monoPattern.FirstHitObject.Colour.AlternatingMonoPattern = monoPattern;
for (int j = 0; j < monoPattern.MonoStreaks.Count; ++j)
{
MonoStreak monoStreak = monoPattern.MonoStreaks[j];
monoStreak.Parent = monoPattern;
monoStreak.Index = j;
monoStreak.FirstHitObject.Colour.MonoStreak = monoStreak;
foreach (var hitObject in monoStreak.HitObjects)
{
hitObject.Colour.RepeatingHitPattern = repeatingHitPattern;
hitObject.Colour.AlternatingMonoPattern = monoPattern;
hitObject.Colour.MonoStreak = monoStreak;
}
}
}
}

16
osu.Game.Rulesets.Taiko/Difficulty/Preprocessing/Colour/TaikoDifficultyHitObjectColour.cs
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@ -11,18 +11,28 @@ namespace osu.Game.Rulesets.Taiko.Difficulty.Preprocessing.Colour
public class TaikoDifficultyHitObjectColour
{
/// <summary>
/// The <see cref="MonoStreak"/> that encodes this note, only present if this is the first note within a <see cref="MonoStreak"/>
/// The <see cref="MonoStreak"/> that encodes this note.
/// </summary>
public MonoStreak? MonoStreak;
/// <summary>
/// The <see cref="AlternatingMonoPattern"/> that encodes this note, only present if this is the first note within a <see cref="AlternatingMonoPattern"/>
/// The <see cref="AlternatingMonoPattern"/> that encodes this note.
/// </summary>
public AlternatingMonoPattern? AlternatingMonoPattern;
/// <summary>
/// The <see cref="RepeatingHitPattern"/> that encodes this note, only present if this is the first note within a <see cref="RepeatingHitPattern"/>
/// The <see cref="RepeatingHitPattern"/> that encodes this note.
/// </summary>
public RepeatingHitPatterns? RepeatingHitPattern;
/// <summary>
/// The closest past <see cref="TaikoDifficultyHitObject"/> that's not the same colour.
/// </summary>
public TaikoDifficultyHitObject? PreviousColourChange => MonoStreak?.FirstHitObject.PreviousNote(0);
/// <summary>
/// The closest future <see cref="TaikoDifficultyHitObject"/> that's not the same colour.
/// </summary>
public TaikoDifficultyHitObject? NextColourChange => MonoStreak?.LastHitObject.NextNote(0);
}
}

3
osu.Game.Rulesets.Taiko/Difficulty/Skills/Stamina.cs
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@ -13,9 +13,6 @@ namespace osu.Game.Rulesets.Taiko.Difficulty.Skills
/// <summary>
/// Calculates the stamina coefficient of taiko difficulty.
/// </summary>
/// <remarks>
/// The reference play style chosen uses two hands, with full alternating (the hand changes after every hit).
/// </remarks>
public class Stamina : StrainDecaySkill
{
protected override double SkillMultiplier => 1.1;

9
osu.Game.Rulesets.Taiko/Difficulty/TaikoDifficultyCalculator.cs
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@ -83,15 +83,6 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
double combinedRating = combined.DifficultyValue() * difficulty_multiplier;
double starRating = rescale(combinedRating * 1.4);
// TODO: This is temporary measure as we don't detect abuse of multiple-input playstyles of converts within the current system.
if (beatmap.BeatmapInfo.Ruleset.OnlineID == 0)
{
starRating *= 0.925;
// For maps with low colour variance and high stamina requirement, multiple inputs are more likely to be abused.
if (colourRating < 2 && staminaRating > 8)
starRating *= 0.80;
}
HitWindows hitWindows = new TaikoHitWindows();
hitWindows.SetDifficulty(beatmap.Difficulty.OverallDifficulty);

19
osu.Game.Rulesets.Taiko/Difficulty/TaikoPerformanceCalculator.cs
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@ -43,6 +43,9 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
if (totalSuccessfulHits > 0)
effectiveMissCount = Math.Max(1.0, 1000.0 / totalSuccessfulHits) * countMiss;
// TODO: The detection of rulesets is temporary until the leftover old skills have been reworked.
bool isConvert = score.BeatmapInfo.Ruleset.OnlineID != 1;
double multiplier = 1.13;
if (score.Mods.Any(m => m is ModHidden))
@ -51,8 +54,8 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
if (score.Mods.Any(m => m is ModEasy))
multiplier *= 0.975;
double difficultyValue = computeDifficultyValue(score, taikoAttributes);
double accuracyValue = computeAccuracyValue(score, taikoAttributes);
double difficultyValue = computeDifficultyValue(score, taikoAttributes, isConvert);
double accuracyValue = computeAccuracyValue(score, taikoAttributes, isConvert);
double totalValue =
Math.Pow(
Math.Pow(difficultyValue, 1.1) +
@ -68,7 +71,7 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
};
}
private double computeDifficultyValue(ScoreInfo score, TaikoDifficultyAttributes attributes)
private double computeDifficultyValue(ScoreInfo score, TaikoDifficultyAttributes attributes, bool isConvert)
{
double difficultyValue = Math.Pow(5 * Math.Max(1.0, attributes.StarRating / 0.115) - 4.0, 2.25) / 1150.0;
@ -80,7 +83,7 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
if (score.Mods.Any(m => m is ModEasy))
difficultyValue *= 0.985;
if (score.Mods.Any(m => m is ModHidden))
if (score.Mods.Any(m => m is ModHidden) && !isConvert)
difficultyValue *= 1.025;
if (score.Mods.Any(m => m is ModHardRock))
@ -92,7 +95,7 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
return difficultyValue * Math.Pow(accuracy, 2.0);
}
private double computeAccuracyValue(ScoreInfo score, TaikoDifficultyAttributes attributes)
private double computeAccuracyValue(ScoreInfo score, TaikoDifficultyAttributes attributes, bool isConvert)
{
if (attributes.GreatHitWindow <= 0)
return 0;
@ -102,9 +105,9 @@ namespace osu.Game.Rulesets.Taiko.Difficulty
double lengthBonus = Math.Min(1.15, Math.Pow(totalHits / 1500.0, 0.3));
accuracyValue *= lengthBonus;
// Slight HDFL Bonus for accuracy. A clamp is used to prevent against negative values
if (score.Mods.Any(m => m is ModFlashlight<TaikoHitObject>) && score.Mods.Any(m => m is ModHidden))
accuracyValue *= Math.Max(1.050, 1.075 * lengthBonus);
// Slight HDFL Bonus for accuracy. A clamp is used to prevent against negative values.
if (score.Mods.Any(m => m is ModFlashlight<TaikoHitObject>) && score.Mods.Any(m => m is ModHidden) && !isConvert)
accuracyValue *= Math.Max(1.0, 1.1 * lengthBonus);
return accuracyValue;
}