From 43c61e58308e2f411971a72da430292088d03487 Mon Sep 17 00:00:00 2001 From: smoogipoo Date: Fri, 28 Aug 2020 22:08:28 +0900 Subject: [PATCH 1/2] Re-query beatmap difficulty before computing --- osu.Game/Beatmaps/BeatmapDifficultyManager.cs | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/osu.Game/Beatmaps/BeatmapDifficultyManager.cs b/osu.Game/Beatmaps/BeatmapDifficultyManager.cs index b80b4e45ed..490f1ba67c 100644 --- a/osu.Game/Beatmaps/BeatmapDifficultyManager.cs +++ b/osu.Game/Beatmaps/BeatmapDifficultyManager.cs @@ -89,8 +89,14 @@ namespace osu.Game.Beatmaps if (tryGetExisting(beatmapInfo, rulesetInfo, mods, out var existing, out var key)) return existing; - return await Task.Factory.StartNew(() => computeDifficulty(key, beatmapInfo, rulesetInfo), cancellationToken, - TaskCreationOptions.HideScheduler | TaskCreationOptions.RunContinuationsAsynchronously, updateScheduler); + return await Task.Factory.StartNew(() => + { + // Computation may have finished in a previous task. + if (tryGetExisting(beatmapInfo, rulesetInfo, mods, out existing, out _)) + return existing; + + return computeDifficulty(key, beatmapInfo, rulesetInfo); + }, cancellationToken, TaskCreationOptions.HideScheduler | TaskCreationOptions.RunContinuationsAsynchronously, updateScheduler); } /// From 436dbafe57614261e9380825aea13b802c9a6dbb Mon Sep 17 00:00:00 2001 From: smoogipoo Date: Fri, 28 Aug 2020 22:12:17 +0900 Subject: [PATCH 2/2] Fix incorrect comparison for mods of different instances --- .../Beatmaps/BeatmapDifficultyManagerTest.cs | 32 +++++++++++++++++++ osu.Game/Beatmaps/BeatmapDifficultyManager.cs | 4 +-- 2 files changed, 34 insertions(+), 2 deletions(-) create mode 100644 osu.Game.Tests/Beatmaps/BeatmapDifficultyManagerTest.cs diff --git a/osu.Game.Tests/Beatmaps/BeatmapDifficultyManagerTest.cs b/osu.Game.Tests/Beatmaps/BeatmapDifficultyManagerTest.cs new file mode 100644 index 0000000000..0f6d956b3c --- /dev/null +++ b/osu.Game.Tests/Beatmaps/BeatmapDifficultyManagerTest.cs @@ -0,0 +1,32 @@ +// Copyright (c) ppy Pty Ltd . Licensed under the MIT Licence. +// See the LICENCE file in the repository root for full licence text. + +using NUnit.Framework; +using osu.Game.Beatmaps; +using osu.Game.Rulesets.Mods; +using osu.Game.Rulesets.Osu.Mods; + +namespace osu.Game.Tests.Beatmaps +{ + [TestFixture] + public class BeatmapDifficultyManagerTest + { + [Test] + public void TestKeyEqualsWithDifferentModInstances() + { + var key1 = new BeatmapDifficultyManager.DifficultyCacheLookup(1234, 0, new Mod[] { new OsuModHardRock(), new OsuModHidden() }); + var key2 = new BeatmapDifficultyManager.DifficultyCacheLookup(1234, 0, new Mod[] { new OsuModHardRock(), new OsuModHidden() }); + + Assert.That(key1, Is.EqualTo(key2)); + } + + [Test] + public void TestKeyEqualsWithDifferentModOrder() + { + var key1 = new BeatmapDifficultyManager.DifficultyCacheLookup(1234, 0, new Mod[] { new OsuModHardRock(), new OsuModHidden() }); + var key2 = new BeatmapDifficultyManager.DifficultyCacheLookup(1234, 0, new Mod[] { new OsuModHidden(), new OsuModHardRock() }); + + Assert.That(key1, Is.EqualTo(key2)); + } + } +} diff --git a/osu.Game/Beatmaps/BeatmapDifficultyManager.cs b/osu.Game/Beatmaps/BeatmapDifficultyManager.cs index 490f1ba67c..0100c9b210 100644 --- a/osu.Game/Beatmaps/BeatmapDifficultyManager.cs +++ b/osu.Game/Beatmaps/BeatmapDifficultyManager.cs @@ -251,7 +251,7 @@ namespace osu.Game.Beatmaps updateScheduler?.Dispose(); } - private readonly struct DifficultyCacheLookup : IEquatable + public readonly struct DifficultyCacheLookup : IEquatable { public readonly int BeatmapId; public readonly int RulesetId; @@ -267,7 +267,7 @@ namespace osu.Game.Beatmaps public bool Equals(DifficultyCacheLookup other) => BeatmapId == other.BeatmapId && RulesetId == other.RulesetId - && Mods.SequenceEqual(other.Mods); + && Mods.Select(m => m.Acronym).SequenceEqual(other.Mods.Select(m => m.Acronym)); public override int GetHashCode() {