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wulpine
7a9d31adb6
* Move osu!catch movement state into `CatchDifficultyHitObject` In order to port `Movement` to an evaluator, the state has to be either moved elsewhere or calculated inside the evaluator. The latter requires backtracking for every hit object, which in the worst case is continued until the beginning of the map is reached. Limiting backtracking can lead to difficulty value changes. Thus, the first option was chosen for its simplicity. * Move osu!catch movement difficulty calculation to an evaluator Makes the code more in line with the other game modes. * Add documentation for `CatchDifficultyHitObject` fields --------- Co-authored-by: James Wilson <tsunyoku@gmail.com>
45 lines
1.7 KiB
C#
45 lines
1.7 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 osu.Game.Rulesets.Catch.Difficulty.Evaluators;
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using osu.Game.Rulesets.Difficulty.Preprocessing;
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using osu.Game.Rulesets.Difficulty.Skills;
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using osu.Game.Rulesets.Mods;
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namespace osu.Game.Rulesets.Catch.Difficulty.Skills
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{
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public class Movement : StrainDecaySkill
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{
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protected override double SkillMultiplier => 1;
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protected override double StrainDecayBase => 0.2;
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protected override double DecayWeight => 0.94;
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protected override int SectionLength => 750;
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protected readonly float HalfCatcherWidth;
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/// <summary>
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/// The speed multiplier applied to the player's catcher.
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/// </summary>
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private readonly double catcherSpeedMultiplier;
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public Movement(Mod[] mods, float halfCatcherWidth, double clockRate)
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: base(mods)
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{
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HalfCatcherWidth = halfCatcherWidth;
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// In catch, clockrate adjustments do not only affect the timings of hitobjects,
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// but also the speed of the player's catcher, which has an impact on difficulty
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// TODO: Support variable clockrates caused by mods such as ModTimeRamp
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// (perhaps by using IApplicableToRate within the CatchDifficultyHitObject constructor to set a catcher speed for each object before processing)
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catcherSpeedMultiplier = clockRate;
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}
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protected override double StrainValueOf(DifficultyHitObject current)
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{
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return MovementEvaluator.EvaluateDifficultyOf(current, catcherSpeedMultiplier);
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}
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}
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}
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