mirror of https://github.com/ppy/osu
66 lines
2.1 KiB
C#
66 lines
2.1 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.Collections.Generic;
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using System.Linq;
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using osu.Game.Beatmaps;
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using osu.Game.Rulesets.Mania.Beatmaps;
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using osu.Game.Rulesets.Mania.Mods;
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using osu.Game.Rulesets.Mods;
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using osu.Game.Rulesets.Scoring.Legacy;
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namespace osu.Game.Rulesets.Mania.Difficulty
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{
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internal class ManiaLegacyScoreSimulator : ILegacyScoreSimulator
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{
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public LegacyScoreAttributes Simulate(IWorkingBeatmap workingBeatmap, IBeatmap playableBeatmap)
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{
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return new LegacyScoreAttributes
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{
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ComboScore = 1000000,
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MaxCombo = 0 // Max combo is mod-dependent, so any value here is insufficient.
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};
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}
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public double GetLegacyScoreMultiplier(IReadOnlyList<Mod> mods, LegacyBeatmapConversionDifficultyInfo difficulty)
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{
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bool scoreV2 = mods.Any(m => m is ModScoreV2);
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double multiplier = 1.0;
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foreach (var mod in mods)
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{
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switch (mod)
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{
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case ManiaModNoFail:
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multiplier *= scoreV2 ? 1.0 : 0.5;
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break;
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case ManiaModEasy:
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multiplier *= 0.5;
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break;
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case ManiaModHalfTime:
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case ManiaModDaycore:
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multiplier *= 0.5;
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break;
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}
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}
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if (new ManiaRuleset().RulesetInfo.Equals(difficulty.SourceRuleset))
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return multiplier;
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// Apply key mod multipliers.
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int originalColumns = ManiaBeatmapConverter.GetColumnCount(difficulty);
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int actualColumns = ManiaBeatmapConverter.GetColumnCount(difficulty, mods);
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if (actualColumns > originalColumns)
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multiplier *= 0.9;
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else if (actualColumns < originalColumns)
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multiplier *= 0.9 - 0.04 * (originalColumns - actualColumns);
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return multiplier;
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}
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}
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}
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