osu/osu.Game.Rulesets.Mania/Difficulty/Skills/Individual.cs

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// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System.Linq;
using osu.Game.Rulesets.Difficulty.Preprocessing;
using osu.Game.Rulesets.Difficulty.Skills;
using osu.Game.Rulesets.Mania.Difficulty.Preprocessing;
using osu.Game.Rulesets.Mania.Objects;
namespace osu.Game.Rulesets.Mania.Difficulty.Skills
{
public class Individual : Skill
{
protected override double SkillMultiplier => 1;
protected override double StrainDecayBase => 0.125;
private readonly double[] holdEndTimes;
private readonly int column;
public Individual(int column, int columnCount)
{
this.column = column;
holdEndTimes = new double[columnCount];
}
protected override double StrainValueOf(DifficultyHitObject current)
{
var maniaCurrent = (ManiaDifficultyHitObject)current;
var endTime = (maniaCurrent.BaseObject as HoldNote)?.EndTime ?? maniaCurrent.BaseObject.StartTime;
try
{
if (maniaCurrent.BaseObject.Column != column)
return 0;
// We give a slight bonus if something is held meanwhile
return holdEndTimes.Any(t => t > endTime) ? 2.5 : 2;
}
finally
{
holdEndTimes[maniaCurrent.BaseObject.Column] = endTime;
}
}
}
}