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https://github.com/ppy/osu
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51 lines
2.0 KiB
C#
51 lines
2.0 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using System;
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using osu.Game.Rulesets.Osu.Difficulty.Preprocessing;
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namespace osu.Game.Rulesets.Osu.Difficulty.Skills
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{
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/// <summary>
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/// Represents the skill required to correctly aim at every object in the map with a uniform CircleSize and normalized distances.
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/// </summary>
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public class Aim : Skill
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{
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private const double angle_bonus_begin = Math.PI / 3;
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private const double timing_threshold = 107;
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protected override double SkillMultiplier => 26.25;
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protected override double StrainDecayBase => 0.15;
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protected override double StrainValueOf(OsuDifficultyHitObject current)
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{
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double result = 0;
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const double scale = 90;
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if (Previous.Count > 0)
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{
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if (current.Angle != null && current.Angle.Value > angle_bonus_begin)
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{
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var angleBonus = Math.Sqrt(
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Math.Max(Previous[0].JumpDistance - scale, 0)
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* Math.Pow(Math.Sin(current.Angle.Value - angle_bonus_begin), 2)
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* Math.Max(current.JumpDistance - scale, 0));
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result = 1.5 * Math.Pow(Math.Max(0, angleBonus), 0.99) / Math.Max(timing_threshold, Previous[0].StrainTime);
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}
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}
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return Math.Max(
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result + (
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Math.Pow(current.JumpDistance, 0.99)
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+ Math.Pow(current.TravelDistance, 0.99)
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+ Math.Sqrt(Math.Pow(current.TravelDistance, 0.99) * Math.Pow(current.JumpDistance, 0.99)))
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/ Math.Max(current.StrainTime, timing_threshold),
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(Math.Sqrt(Math.Pow(current.TravelDistance, 0.99) * Math.Pow(current.JumpDistance, 0.99))
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+ Math.Pow(current.JumpDistance, 0.99)
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+ Math.Pow(current.TravelDistance, 0.99))
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/ current.StrainTime);
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}
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}
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}
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