mirror of https://github.com/ppy/osu
40 lines
1.6 KiB
C#
40 lines
1.6 KiB
C#
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
|
|
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
|
|
|
|
using osu.Game.Rulesets.Osu.Difficulty.Preprocessing;
|
|
|
|
namespace osu.Game.Rulesets.Osu.Difficulty.Skills
|
|
{
|
|
/// <summary>
|
|
/// Represents the skill required to press keys with regards to keeping up with the speed at which objects need to be hit.
|
|
/// </summary>
|
|
public class Speed : Skill
|
|
{
|
|
protected override double SkillMultiplier => 1400;
|
|
protected override double StrainDecayBase => 0.3;
|
|
|
|
private const double single_spacing_threshold = 125;
|
|
private const double stream_spacing_threshold = 110;
|
|
private const double almost_diameter = 90;
|
|
|
|
protected override double StrainValueOf(OsuDifficultyHitObject current)
|
|
{
|
|
double distance = current.Distance;
|
|
|
|
double speedValue;
|
|
if (distance > single_spacing_threshold)
|
|
speedValue = 2.5;
|
|
else if (distance > stream_spacing_threshold)
|
|
speedValue = 1.6 + 0.9 * (distance - stream_spacing_threshold) / (single_spacing_threshold - stream_spacing_threshold);
|
|
else if (distance > almost_diameter)
|
|
speedValue = 1.2 + 0.4 * (distance - almost_diameter) / (stream_spacing_threshold - almost_diameter);
|
|
else if (distance > almost_diameter / 2)
|
|
speedValue = 0.95 + 0.25 * (distance - almost_diameter / 2) / (almost_diameter / 2);
|
|
else
|
|
speedValue = 0.95;
|
|
|
|
return speedValue / current.DeltaTime;
|
|
}
|
|
}
|
|
}
|