h1or4dme8/osu-lazer
1
0
Fork 0
mirror of https://github.com/ppy/osu.git synced 2025-03-17 15:47:20 +08:00
Code Issues Releases Wiki Activity

final clean up before PR

Browse Source
This commit is contained in:
Xexxar 2021-09-29 19:14:54 +00:00
parent 81921bee11
commit d14eed88fd
1 changed files with 26 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
osu.Game.Rulesets.Osu/Difficulty/Skills/Speed.cs
View File

@ -16,13 +16,11 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
public class Speed : OsuStrainSkill
{
private const double single_spacing_threshold = 125;
private const double angle_bonus_begin = 5 * Math.PI / 6;
private const double pi_over_4 = Math.PI / 4;
private const double pi_over_2 = Math.PI / 2;
private const double rhythm_multiplier = 2.0;
private const double rhythm_multiplier = 4.0;
private const int history_time_max = 5000; // 5 seconds of calculatingRhythmBonus max.
private const double min_speed_bonus = 75; // ~200BPM
private const double max_speed_bonus = 45;
private const double speed_balancing_factor = 40;
private double skillMultiplier => 1375;
private double strainDecayBase => 0.3;
@ -33,11 +31,6 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
protected override int ReducedSectionCount => 5;
protected override double DifficultyMultiplier => 1.04;
private const double min_speed_bonus = 75; // ~200BPM
private const double max_speed_bonus = 45;
private const double speed_balancing_factor = 40;
protected override int HistoryLength => 32;
private readonly double greatWindow;
@ -59,6 +52,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
int previousIslandSize = -1;
double rhythmComplexitySum = 0;
int islandSize = 0;
double startRatio = 0; // store the ratio of the current start of an island to buff for tighter rhythms
bool firstDeltaSwitch = false;
@ -66,7 +60,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
{
DifficultyHitObject currObj = Previous[i - 1];
DifficultyHitObject prevObj = Previous[i];
DifficultyHitObject prevPrevObj = Previous[i + 1];
DifficultyHitObject lastObj = Previous[i + 1];
double currHistoricalDecay = Math.Max(0, (history_time_max - (current.StartTime - currObj.StartTime))) / history_time_max; // scales note 0 to 1 from history to now
@ -76,11 +70,13 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
double currDelta = Math.Max(25, currObj.DeltaTime);
double prevDelta = Math.Max(25, prevObj.DeltaTime);
double prevPrevDelta = ((OsuDifficultyHitObject)prevPrevObj).StrainTime;
double lastDelta = ((OsuDifficultyHitObject)lastObj).StrainTime;
double effectiveRatio = Math.Min(prevDelta, currDelta) / Math.Max(prevDelta, currDelta);
if (effectiveRatio > 0.5)
effectiveRatio = 0.5 + (effectiveRatio - 0.5) * 5; // large buff for 1/3 -> 1/4 type transitions.
effectiveRatio = 0.5 + (effectiveRatio - 0.5) * 6; // large buff for 1/3 -> 1/4 type transitions.
else
effectiveRatio = 0.5;
effectiveRatio *= currHistoricalDecay; // scale with time
@ -92,10 +88,8 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
}
else
{
if (islandSize > 6)
islandSize = 6;
if (islandSize > 12)
islandSize = 12;
if (Previous[i - 1].BaseObject is Slider) // bpm change is into slider, this is easy acc window
effectiveRatio *= 0.25;
@ -104,12 +98,17 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
effectiveRatio *= 0.5;
if (previousIslandSize == islandSize) // repeated island size (ex: triplet -> triplet)
effectiveRatio *= 0.25;
effectiveRatio *= 0.35;
if (prevPrevDelta > prevDelta + 10 && prevDelta > currDelta + 10) // previous increase happened a note ago, 1/1->1/2-1/4, dont want to buff this.
if (previousIslandSize % 2 == islandSize % 2) // repeated island polartiy (2 -> 4, 3 -> 5)
effectiveRatio *= 0.75;
if (lastDelta > prevDelta + 10 && prevDelta > currDelta + 10) // previous increase happened a note ago, 1/1->1/2-1/4, dont want to buff this.
effectiveRatio *= 0.125;
rhythmComplexitySum += effectiveRatio;
rhythmComplexitySum += effectiveRatio * startRatio;
startRatio = Math.Sqrt(Math.Min(prevDelta, currDelta) / Math.Max(prevDelta, currDelta));
previousIslandSize = islandSize; // log the last island size.
@ -124,11 +123,15 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
// Begin counting island until we change speed again.
firstDeltaSwitch = true;
islandSize = 0;
startRatio = Math.Sqrt(Math.Min(prevDelta, currDelta) / Math.Max(prevDelta, currDelta));
}
}
}
return Math.Sqrt(4 + rhythmComplexitySum * rhythm_multiplier * Math.Sqrt(52 / greatWindowFull)) / 2; //produces multiplier that can be applied to strain. range [1, infinity) (not really though)
if (greatWindowFull > 62)
rhythmComplexitySum *= Math.Sqrt(62 / greatWindowFull);
return Math.Sqrt(4 + rhythmComplexitySum * rhythm_multiplier) / 2; //produces multiplier that can be applied to strain. range [1, infinity) (not really though)
}
private double tapStrainOf(DifficultyHitObject current, double speedBonus, double strainTime)
@ -147,19 +150,8 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Skills
var osuCurrObj = (OsuDifficultyHitObject)current;
double distance = Math.Min(single_spacing_threshold, osuCurrObj.TravelDistance + osuCurrObj.JumpDistance);
double angleBonus = 1.0;
if (osuCurrObj.Angle != null)
{
double angle = osuCurrObj.Angle.Value;
if (angle < pi_over_2)
angleBonus = 1.25;
else if (angle < angle_bonus_begin)
angleBonus = 1 + Math.Pow(Math.Sin(1.5 * (angle_bonus_begin - angle)), 2) / 4;
}
return (angleBonus * speedBonus * Math.Pow(distance / single_spacing_threshold, 3.5)) / strainTime;
return (speedBonus * Math.Pow(distance / single_spacing_threshold, 3.5)) / strainTime;
}
private double strainDecay(double ms) => Math.Pow(strainDecayBase, ms / 1000);