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Cap speed change per hit and apply a speed decrease on miss

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This commit is contained in:
Henry Lin 2022-03-04 11:48:48 +08:00
parent b66af7edf4
commit f72c9a1f41
1 changed files with 24 additions and 6 deletions
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30
osu.Game/Rulesets/Mods/ModAdaptiveSpeed.cs
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@ -65,8 +65,16 @@ namespace osu.Game.Rulesets.Mods
// The two constants below denote the maximum allowable range of rates that `SpeedChange` can take.
// The range is purposefully wider than the range of values that `InitialRate` allows
// in order to give some leeway for change even when extreme initial rates are chosen.
private const double min_allowable_rate = 0.4f;
private const double max_allowable_rate = 2.5f;
private const double min_allowable_rate = 0.4d;
private const double max_allowable_rate = 2.5d;
// The two constants below denote the maximum allowable change in rate caused by a single hit
// This prevents sudden jolts caused by a badly-timed hit.
private const double min_allowable_rate_change = 0.8d;
private const double max_allowable_rate_change = 1.25d;
// Apply a fixed rate change when missing, allowing the player to catch up when the rate is too fast.
private const double rate_change_on_miss = 0.95d;
private ITrack track;
private double targetRate = 1d;
@ -159,12 +167,10 @@ namespace osu.Game.Rulesets.Mods
if (ratesForRewinding.ContainsKey(result.HitObject)) return;
if (!shouldProcessResult(result)) return;
double prevEndTime = precedingEndTimes[result.HitObject];
ratesForRewinding.Add(result.HitObject, recentRates[0]);
recentRates.RemoveAt(0);
recentRates.Add(Math.Clamp((result.HitObject.GetEndTime() - prevEndTime) / (result.TimeAbsolute - prevEndTime) * SpeedChange.Value, min_allowable_rate, max_allowable_rate));
recentRates.Add(Math.Clamp(getRelativeRateChange(result) * SpeedChange.Value, min_allowable_rate, max_allowable_rate));
targetRate = recentRates.Average();
};
@ -222,11 +228,23 @@ namespace osu.Game.Rulesets.Mods
private bool shouldProcessResult(JudgementResult result)
{
if (!result.IsHit) return false;
if (!result.Type.AffectsAccuracy()) return false;
if (!precedingEndTimes.ContainsKey(result.HitObject)) return false;
return true;
}
private double getRelativeRateChange(JudgementResult result)
{
if (!result.IsHit)
return rate_change_on_miss;
double prevEndTime = precedingEndTimes[result.HitObject];
return Math.Clamp(
(result.HitObject.GetEndTime() - prevEndTime) / (result.TimeAbsolute - prevEndTime),
min_allowable_rate_change,
max_allowable_rate_change
);
}
}
}