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Replicate hit window calculation

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This commit is contained in:
smoogipoo 2020-10-14 20:40:29 +09:00
parent 1a2dc83740
commit 26dffbfd3b
1 changed files with 32 additions and 1 deletions
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33
osu.Game.Rulesets.Mania/Difficulty/ManiaDifficultyCalculator.cs
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@ -26,11 +26,13 @@ namespace osu.Game.Rulesets.Mania.Difficulty
private const double star_scaling_factor = 0.018;
private readonly bool isForCurrentRuleset;
private readonly double originalOverallDifficulty;
public ManiaDifficultyCalculator(Ruleset ruleset, WorkingBeatmap beatmap)
: base(ruleset, beatmap)
{
isForCurrentRuleset = beatmap.BeatmapInfo.Ruleset.Equals(ruleset.RulesetInfo);
originalOverallDifficulty = beatmap.BeatmapInfo.BaseDifficulty.OverallDifficulty;
}
protected override DifficultyAttributes CreateDifficultyAttributes(IBeatmap beatmap, Mod[] mods, Skill[] skills, double clockRate)
@ -46,7 +48,7 @@ namespace osu.Game.Rulesets.Mania.Difficulty
StarRating = skills[0].DifficultyValue() * star_scaling_factor,
Mods = mods,
// Todo: This int cast is temporary to achieve 1:1 results with osu!stable, and should be removed in the future
GreatHitWindow = (int)(hitWindows.WindowFor(HitResult.Great)) / clockRate,
GreatHitWindow = (int)Math.Ceiling(getHitWindow300(mods) / clockRate),
ScoreMultiplier = getScoreMultiplier(beatmap, mods),
MaxCombo = beatmap.HitObjects.Sum(h => h is HoldNote ? 2 : 1),
Skills = skills
@ -107,6 +109,35 @@ namespace osu.Game.Rulesets.Mania.Difficulty
}
}
private int getHitWindow300(Mod[] mods)
{
if (isForCurrentRuleset)
{
double od = Math.Min(10.0, Math.Max(0, 10.0 - originalOverallDifficulty));
return applyModAdjustments(34 + 3 * od, mods);
}
if (Math.Round(originalOverallDifficulty) > 4)
return applyModAdjustments(34, mods);
return applyModAdjustments(47, mods);
static int applyModAdjustments(double value, Mod[] mods)
{
if (mods.Any(m => m is ManiaModHardRock))
value /= 1.4;
else if (mods.Any(m => m is ManiaModEasy))
value *= 1.4;
if (mods.Any(m => m is ManiaModDoubleTime))
value *= 1.5;
else if (mods.Any(m => m is ManiaModHalfTime))
value *= 0.75;
return (int)value;
}
}
private double getScoreMultiplier(IBeatmap beatmap, Mod[] mods)
{
double scoreMultiplier = 1;