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36 lines
1.2 KiB
C#
36 lines
1.2 KiB
C#
using System;
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using osu.Game.Rulesets.Difficulty.Preprocessing;
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using osu.Game.Rulesets.Taiko.Difficulty.Preprocessing;
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namespace osu.Game.Rulesets.Taiko.Difficulty.Evaluators
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{
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public class ColourEvaluator
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{
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// TODO - Share this sigmoid
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private static double sigmoid(double val, double center, double width)
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{
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return Math.Tanh(Math.E * -(val - center) / width);
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}
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public static double EvaluateDifficultyOf(TaikoDifficultyHitObjectColour? colour)
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{
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if (colour == null) return 0;
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double difficulty = 7.5 * Math.Log(colour.Encoding.Payload.Length + 1, 10);
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// foreach (ColourEncoding encoding in colour.Encoding.Payload)
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// {
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// difficulty += sigmoid(encoding.MonoRunLength, 1, 1) * 0.4 + 0.6;
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// }
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difficulty *= -sigmoid(colour.RepetitionInterval, 1, 7);
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// difficulty *= -sigmoid(colour.RepetitionInterval, 2, 2) * 0.5 + 0.5;
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return difficulty;
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}
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public static double EvaluateDifficultyOf(DifficultyHitObject current)
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{
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return EvaluateDifficultyOf(((TaikoDifficultyHitObject)current).Colour);
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}
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}
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}
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