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osu-lazer/osu.Game.Rulesets.Osu/Difficulty/Skills/Aim.cs
2023-06-24 01:00:03 +09:00

42 lines
1.4 KiB
C#

// 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;
using osu.Game.Rulesets.Difficulty.Preprocessing;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Osu.Difficulty.Evaluators;
namespace osu.Game.Rulesets.Osu.Difficulty.Skills
{
/// <summary>
/// Represents the skill required to correctly aim at every object in the map with a uniform CircleSize and normalized distances.
/// </summary>
public class Aim : OsuStrainSkill
{
public Aim(Mod[] mods, bool withSliders)
: base(mods)
{
this.withSliders = withSliders;
}
private readonly bool withSliders;
private double currentStrain;
private double skillMultiplier => 23.55;
private double strainDecayBase => 0.15;
private double strainDecay(double ms) => Math.Pow(strainDecayBase, ms / 1000);
protected override double CalculateInitialStrain(double time, DifficultyHitObject current) => currentStrain * strainDecay(time - current.Previous(0).StartTime);
protected override double StrainValueAt(DifficultyHitObject current)
{
currentStrain *= strainDecay(current.DeltaTime);
currentStrain += AimEvaluator.EvaluateDifficultyOf(current, withSliders) * skillMultiplier;
return currentStrain;
}
}
}