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40 lines
1.7 KiB
C#
40 lines
1.7 KiB
C#
// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using osu.Game.Rulesets.Osu.OsuDifficulty.Preprocessing;
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namespace osu.Game.Rulesets.Osu.OsuDifficulty.Skills
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{
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/// <summary>
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/// Represents the skill required to press keys with regards to keeping up with the speed at which objects need to be hit.
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/// </summary>
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public class Speed : Skill
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{
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protected override double SkillMultiplier => 1400;
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protected override double StrainDecayBase => 0.3;
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private const double single_spacing_threshold = 125;
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private const double stream_spacing_threshold = 110;
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private const double almost_diameter = 90;
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protected override double StrainValueOf(OsuDifficultyHitObject current)
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{
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double distance = current.Distance;
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double speedValue;
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if (distance > single_spacing_threshold)
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speedValue = 2.5;
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else if (distance > stream_spacing_threshold)
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speedValue = 1.6 + 0.9 * (distance - stream_spacing_threshold) / (single_spacing_threshold - stream_spacing_threshold);
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else if (distance > almost_diameter)
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speedValue = 1.2 + 0.4 * (distance - almost_diameter) / (stream_spacing_threshold - almost_diameter);
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else if (distance > almost_diameter / 2)
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speedValue = 0.95 + 0.25 * (distance - almost_diameter / 2) / (almost_diameter / 2);
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else
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speedValue = 0.95;
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return speedValue / current.DeltaTime;
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}
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}
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}
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