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333 lines
15 KiB
C#
333 lines
15 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;
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using System.Collections.Generic;
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using System.Linq;
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using System.Linq.Expressions;
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using System.Threading;
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using System.Threading.Tasks;
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using JetBrains.Annotations;
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using osu.Framework.Bindables;
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using osu.Framework.Extensions;
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using osu.Framework.Platform;
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using osu.Framework.Threading;
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using osu.Game.Beatmaps;
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using osu.Game.Configuration;
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using osu.Game.Database;
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using osu.Game.IO.Archives;
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using osu.Game.Overlays.Notifications;
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using osu.Game.Rulesets;
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using osu.Game.Rulesets.Scoring;
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namespace osu.Game.Scoring
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{
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public class ScoreManager : IModelManager<ScoreInfo>, IModelImporter<ScoreInfo>
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{
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private readonly RealmAccess realm;
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private readonly Scheduler scheduler;
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private readonly Func<BeatmapDifficultyCache> difficulties;
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private readonly OsuConfigManager configManager;
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private readonly ScoreModelManager scoreModelManager;
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public ScoreManager(RulesetStore rulesets, Func<BeatmapManager> beatmaps, Storage storage, RealmAccess realm, Scheduler scheduler,
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Func<BeatmapDifficultyCache> difficulties = null, OsuConfigManager configManager = null)
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{
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this.realm = realm;
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this.scheduler = scheduler;
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this.difficulties = difficulties;
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this.configManager = configManager;
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scoreModelManager = new ScoreModelManager(rulesets, beatmaps, storage, realm);
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}
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public Score GetScore(ScoreInfo score) => scoreModelManager.GetScore(score);
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/// <summary>
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/// Perform a lookup query on available <see cref="ScoreInfo"/>s.
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/// </summary>
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/// <param name="query">The query.</param>
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/// <returns>The first result for the provided query, or null if no results were found.</returns>
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public ScoreInfo Query(Expression<Func<ScoreInfo, bool>> query)
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{
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return realm.Run(r => r.All<ScoreInfo>().FirstOrDefault(query)?.Detach());
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}
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/// <summary>
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/// Orders an array of <see cref="ScoreInfo"/>s by total score.
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/// </summary>
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/// <param name="scores">The array of <see cref="ScoreInfo"/>s to reorder.</param>
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/// <param name="cancellationToken">A <see cref="CancellationToken"/> to cancel the process.</param>
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/// <returns>The given <paramref name="scores"/> ordered by decreasing total score.</returns>
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public async Task<ScoreInfo[]> OrderByTotalScoreAsync(ScoreInfo[] scores, CancellationToken cancellationToken = default)
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{
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var difficultyCache = difficulties?.Invoke();
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if (difficultyCache != null)
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{
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// Compute difficulties asynchronously first to prevent blocking via the GetTotalScore() call below.
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foreach (var s in scores)
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{
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await difficultyCache.GetDifficultyAsync(s.BeatmapInfo, s.Ruleset, s.Mods, cancellationToken).ConfigureAwait(false);
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cancellationToken.ThrowIfCancellationRequested();
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}
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}
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long[] totalScores = await Task.WhenAll(scores.Select(s => GetTotalScoreAsync(s, cancellationToken: cancellationToken))).ConfigureAwait(false);
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return scores.Select((score, index) => (score, totalScore: totalScores[index]))
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.OrderByDescending(g => g.totalScore)
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.ThenBy(g => g.score.OnlineID)
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.Select(g => g.score)
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.ToArray();
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}
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/// <summary>
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/// Retrieves a bindable that represents the total score of a <see cref="ScoreInfo"/>.
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/// </summary>
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/// <remarks>
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/// Responds to changes in the currently-selected <see cref="ScoringMode"/>.
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/// </remarks>
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/// <param name="score">The <see cref="ScoreInfo"/> to retrieve the bindable for.</param>
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/// <returns>The bindable containing the total score.</returns>
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public Bindable<long> GetBindableTotalScore([NotNull] ScoreInfo score) => new TotalScoreBindable(score, this, configManager);
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/// <summary>
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/// Retrieves a bindable that represents the formatted total score string of a <see cref="ScoreInfo"/>.
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/// </summary>
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/// <remarks>
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/// Responds to changes in the currently-selected <see cref="ScoringMode"/>.
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/// </remarks>
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/// <param name="score">The <see cref="ScoreInfo"/> to retrieve the bindable for.</param>
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/// <returns>The bindable containing the formatted total score string.</returns>
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public Bindable<string> GetBindableTotalScoreString([NotNull] ScoreInfo score) => new TotalScoreStringBindable(GetBindableTotalScore(score));
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/// <summary>
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/// Retrieves the total score of a <see cref="ScoreInfo"/> in the given <see cref="ScoringMode"/>.
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/// The score is returned in a callback that is run on the update thread.
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/// </summary>
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/// <param name="score">The <see cref="ScoreInfo"/> to calculate the total score of.</param>
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/// <param name="callback">The callback to be invoked with the total score.</param>
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/// <param name="mode">The <see cref="ScoringMode"/> to return the total score as.</param>
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/// <param name="cancellationToken">A <see cref="CancellationToken"/> to cancel the process.</param>
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public void GetTotalScore([NotNull] ScoreInfo score, [NotNull] Action<long> callback, ScoringMode mode = ScoringMode.Standardised, CancellationToken cancellationToken = default)
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{
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GetTotalScoreAsync(score, mode, cancellationToken)
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.ContinueWith(task => scheduler.Add(() =>
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{
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if (!cancellationToken.IsCancellationRequested)
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callback(task.GetResultSafely());
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}), TaskContinuationOptions.OnlyOnRanToCompletion);
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}
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/// <summary>
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/// Retrieves the total score of a <see cref="ScoreInfo"/> in the given <see cref="ScoringMode"/>.
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/// </summary>
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/// <param name="score">The <see cref="ScoreInfo"/> to calculate the total score of.</param>
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/// <param name="mode">The <see cref="ScoringMode"/> to return the total score as.</param>
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/// <param name="cancellationToken">A <see cref="CancellationToken"/> to cancel the process.</param>
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/// <returns>The total score.</returns>
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public async Task<long> GetTotalScoreAsync([NotNull] ScoreInfo score, ScoringMode mode = ScoringMode.Standardised, CancellationToken cancellationToken = default)
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{
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// TODO: This is required for playlist aggregate scores. They should likely not be getting here in the first place.
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if (string.IsNullOrEmpty(score.BeatmapInfo.MD5Hash))
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return score.TotalScore;
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int? beatmapMaxCombo = await GetMaximumAchievableComboAsync(score, cancellationToken).ConfigureAwait(false);
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if (beatmapMaxCombo == null)
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return score.TotalScore;
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if (beatmapMaxCombo == 0)
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return 0;
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var ruleset = score.Ruleset.CreateInstance();
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var scoreProcessor = ruleset.CreateScoreProcessor();
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scoreProcessor.Mods.Value = score.Mods;
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return (long)Math.Round(scoreProcessor.ComputeFinalLegacyScore(mode, score, beatmapMaxCombo.Value));
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}
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/// <summary>
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/// Retrieves the maximum achievable combo for the provided score.
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/// </summary>
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/// <param name="score">The <see cref="ScoreInfo"/> to compute the maximum achievable combo for.</param>
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/// <param name="cancellationToken">A <see cref="CancellationToken"/> to cancel the process.</param>
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/// <returns>The maximum achievable combo. A <see langword="null"/> return value indicates the difficulty cache has failed to retrieve the combo.</returns>
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public async Task<int?> GetMaximumAchievableComboAsync([NotNull] ScoreInfo score, CancellationToken cancellationToken = default)
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{
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if (score.IsLegacyScore)
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{
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// This score is guaranteed to be an osu!stable score.
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// The combo must be determined through either the beatmap's max combo value or the difficulty calculator, as lazer's scoring has changed and the score statistics cannot be used.
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#pragma warning disable CS0618
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if (score.BeatmapInfo.MaxCombo != null)
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return score.BeatmapInfo.MaxCombo.Value;
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#pragma warning restore CS0618
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if (difficulties == null)
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return null;
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// We can compute the max combo locally after the async beatmap difficulty computation.
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var difficulty = await difficulties().GetDifficultyAsync(score.BeatmapInfo, score.Ruleset, score.Mods, cancellationToken).ConfigureAwait(false);
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return difficulty?.MaxCombo;
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}
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// This is guaranteed to be a non-legacy score.
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// The combo must be determined through the score's statistics, as both the beatmap's max combo and the difficulty calculator will provide osu!stable combo values.
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return Enum.GetValues(typeof(HitResult)).OfType<HitResult>().Where(r => r.AffectsCombo()).Select(r => score.Statistics.GetValueOrDefault(r)).Sum();
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}
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/// <summary>
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/// Provides the total score of a <see cref="ScoreInfo"/>. Responds to changes in the currently-selected <see cref="ScoringMode"/>.
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/// </summary>
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private class TotalScoreBindable : Bindable<long>
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{
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private readonly Bindable<ScoringMode> scoringMode = new Bindable<ScoringMode>();
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private readonly ScoreInfo score;
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private readonly ScoreManager scoreManager;
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private CancellationTokenSource difficultyCalculationCancellationSource;
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/// <summary>
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/// Creates a new <see cref="TotalScoreBindable"/>.
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/// </summary>
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/// <param name="score">The <see cref="ScoreInfo"/> to provide the total score of.</param>
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/// <param name="scoreManager">The <see cref="ScoreManager"/>.</param>
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/// <param name="configManager">The config.</param>
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public TotalScoreBindable(ScoreInfo score, ScoreManager scoreManager, OsuConfigManager configManager)
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{
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this.score = score;
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this.scoreManager = scoreManager;
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configManager?.BindWith(OsuSetting.ScoreDisplayMode, scoringMode);
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scoringMode.BindValueChanged(onScoringModeChanged, true);
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}
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private void onScoringModeChanged(ValueChangedEvent<ScoringMode> mode)
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{
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difficultyCalculationCancellationSource?.Cancel();
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difficultyCalculationCancellationSource = new CancellationTokenSource();
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scoreManager.GetTotalScore(score, s => Value = s, mode.NewValue, difficultyCalculationCancellationSource.Token);
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}
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}
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/// <summary>
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/// Provides the total score of a <see cref="ScoreInfo"/> as a formatted string. Responds to changes in the currently-selected <see cref="ScoringMode"/>.
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/// </summary>
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private class TotalScoreStringBindable : Bindable<string>
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{
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// ReSharper disable once PrivateFieldCanBeConvertedToLocalVariable (need to hold a reference)
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private readonly IBindable<long> totalScore;
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public TotalScoreStringBindable(IBindable<long> totalScore)
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{
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this.totalScore = totalScore;
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this.totalScore.BindValueChanged(v => Value = v.NewValue.ToString("N0"), true);
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}
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}
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#region Implementation of IPostNotifications
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public Action<Notification> PostNotification
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{
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set => scoreModelManager.PostNotification = value;
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}
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#endregion
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#region Implementation of IModelManager<ScoreInfo>
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public bool Delete(ScoreInfo item)
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{
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return scoreModelManager.Delete(item);
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}
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public void Delete([CanBeNull] Expression<Func<ScoreInfo, bool>> filter = null, bool silent = false)
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{
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realm.Run(r =>
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{
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var items = r.All<ScoreInfo>()
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.Where(s => !s.DeletePending);
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if (filter != null)
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items = items.Where(filter);
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scoreModelManager.Delete(items.ToList(), silent);
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});
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}
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public void Delete(BeatmapInfo beatmap, bool silent = false)
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{
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realm.Run(r =>
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{
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var beatmapScores = r.Find<BeatmapInfo>(beatmap.ID).Scores.ToList();
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scoreModelManager.Delete(beatmapScores, silent);
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});
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}
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public void Delete(List<ScoreInfo> items, bool silent = false)
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{
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scoreModelManager.Delete(items, silent);
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}
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public void Undelete(List<ScoreInfo> items, bool silent = false)
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{
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scoreModelManager.Undelete(items, silent);
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}
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public void Undelete(ScoreInfo item)
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{
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scoreModelManager.Undelete(item);
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}
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public Task Import(params string[] paths)
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{
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return scoreModelManager.Import(paths);
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}
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public Task Import(params ImportTask[] tasks)
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{
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return scoreModelManager.Import(tasks);
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}
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public IEnumerable<string> HandledExtensions => scoreModelManager.HandledExtensions;
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public Task<IEnumerable<Live<ScoreInfo>>> Import(ProgressNotification notification, params ImportTask[] tasks)
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{
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return scoreModelManager.Import(notification, tasks);
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}
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public Task<Live<ScoreInfo>> Import(ImportTask task, bool lowPriority = false, CancellationToken cancellationToken = default)
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{
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return scoreModelManager.Import(task, lowPriority, cancellationToken);
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}
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public Task<Live<ScoreInfo>> Import(ArchiveReader archive, bool lowPriority = false, CancellationToken cancellationToken = default)
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{
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return scoreModelManager.Import(archive, lowPriority, cancellationToken);
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}
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public Live<ScoreInfo> Import(ScoreInfo item, ArchiveReader archive = null, bool lowPriority = false, CancellationToken cancellationToken = default)
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{
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return scoreModelManager.Import(item, archive, lowPriority, cancellationToken);
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}
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public bool IsAvailableLocally(ScoreInfo model)
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{
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return scoreModelManager.IsAvailableLocally(model);
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}
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#endregion
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#region Implementation of IPresentImports<ScoreInfo>
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public Action<IEnumerable<Live<ScoreInfo>>> PostImport
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{
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set => scoreModelManager.PostImport = value;
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}
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#endregion
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}
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}
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