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Move osu! difficulty attributes to OsuDifficultyCalculator

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smoogipoo
2018-06-14 16:27:05 +09:00
parent 01dd2d7919
commit 41abd5990c
3 changed files with 26 additions and 29 deletions
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13
osu.Game.Rulesets.Osu/Difficulty/OsuDifficultyCalculator.cs
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@ -58,10 +58,21 @@ namespace osu.Game.Rulesets.Osu.Difficulty
double speedRating = Math.Sqrt(skills[1].DifficultyValue()) * difficulty_multiplier;
double starRating = aimRating + speedRating + Math.Abs(aimRating - speedRating) / 2;
// Todo: These int casts are 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;
double preEmpt = (int)BeatmapDifficulty.DifficultyRange(beatmap.BeatmapInfo.BaseDifficulty.ApproachRate, 1800, 1200, 450) / timeRate;
int maxCombo = beatmap.HitObjects.Count();
// Add the ticks + tail of the slider. 1 is subtracted because the "headcircle" would be counted twice (once for the slider itself in the line above)
maxCombo += beatmap.HitObjects.OfType<Slider>().Sum(s => s.NestedHitObjects.Count - 1);
return new OsuDifficultyAttributes(mods, starRating)
{
AimStrain = aimRating,
SpeedStrain = speedRating
SpeedStrain = speedRating,
ApproachRate = preEmpt > 1200 ? (1800 - preEmpt) / 120 : (1200 - preEmpt) / 150 + 5,
OverallDifficulty = (80 - hitWindowGreat) / 6,
MaxCombo = maxCombo
};
}