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osu-lazer/osu.Game/Rulesets/Ruleset.cs

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// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
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using System;
using System.Collections.Generic;
using System.Linq;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Sprites;
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using osu.Framework.Input.Bindings;
using osu.Framework.IO.Stores;
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using osu.Game.Beatmaps;
using osu.Game.Overlays.Settings;
using osu.Game.Rulesets.Edit;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Replays.Types;
using osu.Game.Rulesets.UI;
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using osu.Game.Beatmaps.Legacy;
using osu.Game.Configuration;
using osu.Game.Rulesets.Configuration;
using osu.Game.Rulesets.Difficulty;
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using osu.Game.Rulesets.Scoring;
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using osu.Game.Scoring;
using osu.Game.Skinning;
using osu.Game.Users;
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using JetBrains.Annotations;
using osu.Framework.Testing;
using osu.Game.Screens.Ranking.Statistics;
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namespace osu.Game.Rulesets
{
[ExcludeFromDynamicCompile]
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public abstract class Ruleset
{
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public RulesetInfo RulesetInfo { get; internal set; }
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public IEnumerable<Mod> GetAllMods() => Enum.GetValues(typeof(ModType)).Cast<ModType>()
// Confine all mods of each mod type into a single IEnumerable<Mod>
.SelectMany(GetModsFor)
// Filter out all null mods
.Where(mod => mod != null)
// Resolve MultiMods as their .Mods property
.SelectMany(mod => (mod as MultiMod)?.Mods ?? new[] { mod });
public abstract IEnumerable<Mod> GetModsFor(ModType type);
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/// <summary>
/// Converts mods from legacy enum values. Do not override if you're not a legacy ruleset.
/// </summary>
/// <param name="mods">The legacy enum which will be converted.</param>
/// <returns>An enumerable of constructed <see cref="Mod"/>s.</returns>
public virtual IEnumerable<Mod> ConvertFromLegacyMods(LegacyMods mods) => Array.Empty<Mod>();
/// <summary>
/// Converts mods to legacy enum values. Do not override if you're not a legacy ruleset.
/// </summary>
/// <param name="mods">The mods which will be converted.</param>
/// <returns>A single bitwise enumerable value representing (to the best of our ability) the mods.</returns>
public virtual LegacyMods ConvertToLegacyMods(Mod[] mods)
{
var value = LegacyMods.None;
foreach (var mod in mods)
{
switch (mod)
{
case ModNoFail _:
value |= LegacyMods.NoFail;
break;
case ModEasy _:
value |= LegacyMods.Easy;
break;
case ModHidden _:
value |= LegacyMods.Hidden;
break;
case ModHardRock _:
value |= LegacyMods.HardRock;
break;
case ModSuddenDeath _:
value |= LegacyMods.SuddenDeath;
break;
case ModDoubleTime _:
value |= LegacyMods.DoubleTime;
break;
case ModRelax _:
value |= LegacyMods.Relax;
break;
case ModHalfTime _:
value |= LegacyMods.HalfTime;
break;
case ModFlashlight _:
value |= LegacyMods.Flashlight;
break;
}
}
return value;
}
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[CanBeNull]
public ModAutoplay GetAutoplayMod() => GetAllMods().OfType<ModAutoplay>().FirstOrDefault();
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public virtual ISkin CreateLegacySkinProvider(ISkinSource source, IBeatmap beatmap) => null;
protected Ruleset()
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{
RulesetInfo = new RulesetInfo
{
Name = Description,
ShortName = ShortName,
ID = (this as ILegacyRuleset)?.LegacyID,
InstantiationInfo = GetType().AssemblyQualifiedName,
Available = true,
};
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}
/// <summary>
/// Attempt to create a hit renderer for a beatmap
/// </summary>
/// <param name="beatmap">The beatmap to create the hit renderer for.</param>
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/// <param name="mods">The <see cref="Mod"/>s to apply.</param>
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/// <exception cref="BeatmapInvalidForRulesetException">Unable to successfully load the beatmap to be usable with this ruleset.</exception>
/// <returns></returns>
public abstract DrawableRuleset CreateDrawableRulesetWith(IBeatmap beatmap, IReadOnlyList<Mod> mods = null);
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/// <summary>
/// Creates a <see cref="ScoreProcessor"/> for this <see cref="Ruleset"/>.
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/// </summary>
/// <returns>The score processor.</returns>
public virtual ScoreProcessor CreateScoreProcessor() => new ScoreProcessor();
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/// <summary>
/// Creates a <see cref="HealthProcessor"/> for this <see cref="Ruleset"/>.
/// </summary>
/// <returns>The health processor.</returns>
public virtual HealthProcessor CreateHealthProcessor(double drainStartTime) => new DrainingHealthProcessor(drainStartTime);
/// <summary>
/// Creates a <see cref="IBeatmapConverter"/> to convert a <see cref="IBeatmap"/> to one that is applicable for this <see cref="Ruleset"/>.
/// </summary>
/// <param name="beatmap">The <see cref="IBeatmap"/> to be converted.</param>
/// <returns>The <see cref="IBeatmapConverter"/>.</returns>
public abstract IBeatmapConverter CreateBeatmapConverter(IBeatmap beatmap);
/// <summary>
/// Optionally creates a <see cref="IBeatmapProcessor"/> to alter a <see cref="IBeatmap"/> after it has been converted.
/// </summary>
/// <param name="beatmap">The <see cref="IBeatmap"/> to be processed.</param>
/// <returns>The <see cref="IBeatmapProcessor"/>.</returns>
public virtual IBeatmapProcessor CreateBeatmapProcessor(IBeatmap beatmap) => null;
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public abstract DifficultyCalculator CreateDifficultyCalculator(WorkingBeatmap beatmap);
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public virtual PerformanceCalculator CreatePerformanceCalculator(WorkingBeatmap beatmap, ScoreInfo score) => null;
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public virtual HitObjectComposer CreateHitObjectComposer() => null;
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public virtual Drawable CreateIcon() => new SpriteIcon { Icon = FontAwesome.Solid.QuestionCircle };
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public virtual IResourceStore<byte[]> CreateResourceStore() => new NamespacedResourceStore<byte[]>(new DllResourceStore(GetType().Assembly), @"Resources");
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public abstract string Description { get; }
public virtual RulesetSettingsSubsection CreateSettings() => null;
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/// <summary>
/// Creates the <see cref="IRulesetConfigManager"/> for this <see cref="Ruleset"/>.
/// </summary>
/// <param name="settings">The <see cref="SettingsStore"/> to store the settings.</param>
public virtual IRulesetConfigManager CreateConfig(SettingsStore settings) => null;
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/// <summary>
/// A unique short name to reference this ruleset in online requests.
/// </summary>
public abstract string ShortName { get; }
/// <summary>
/// The playing verb to be shown in the <see cref="UserActivity.SoloGame.Status"/>.
/// </summary>
public virtual string PlayingVerb => "Playing solo";
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/// <summary>
/// A list of available variant ids.
/// </summary>
public virtual IEnumerable<int> AvailableVariants => new[] { 0 };
/// <summary>
/// Get a list of default keys for the specified variant.
/// </summary>
/// <param name="variant">A variant.</param>
/// <returns>A list of valid <see cref="KeyBinding"/>s.</returns>
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public virtual IEnumerable<KeyBinding> GetDefaultKeyBindings(int variant = 0) => Array.Empty<KeyBinding>();
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/// <summary>
/// Gets the name for a key binding variant. This is used for display in the settings overlay.
/// </summary>
/// <param name="variant">The variant.</param>
/// <returns>A descriptive name of the variant.</returns>
public virtual string GetVariantName(int variant) => string.Empty;
/// <summary>
/// For rulesets which support legacy (osu-stable) replay conversion, this method will create an empty replay frame
/// for conversion use.
/// </summary>
/// <returns>An empty frame for the current ruleset, or null if unsupported.</returns>
public virtual IConvertibleReplayFrame CreateConvertibleReplayFrame() => null;
/// <summary>
/// Creates the statistics for a <see cref="ScoreInfo"/> to be displayed in the results screen.
/// </summary>
/// <param name="score">The <see cref="ScoreInfo"/> to create the statistics for. The score is guaranteed to have <see cref="ScoreInfo.HitEvents"/> populated.</param>
/// <param name="playableBeatmap">The <see cref="IBeatmap"/>, converted for this <see cref="Ruleset"/> with all relevant <see cref="Mod"/>s applied.</param>
/// <returns>The <see cref="StatisticRow"/>s to display. Each <see cref="StatisticRow"/> may contain 0 or more <see cref="StatisticItem"/>.</returns>
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[NotNull]
public virtual StatisticRow[] CreateStatisticsForScore(ScoreInfo score, IBeatmap playableBeatmap) => Array.Empty<StatisticRow>();
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}
}