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osu-lazer/osu.Game/Screens/Play/HUD/PerformancePointsCounter.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.
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
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using System.Threading;
using System.Threading.Tasks;
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using JetBrains.Annotations;
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using osu.Framework.Allocation;
using osu.Framework.Audio.Track;
using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Sprites;
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using osu.Framework.Graphics.Textures;
using osu.Framework.Localisation;
using osu.Game.Beatmaps;
using osu.Game.Graphics;
using osu.Game.Graphics.Sprites;
using osu.Game.Graphics.UserInterface;
using osu.Game.Rulesets;
using osu.Game.Rulesets.Difficulty;
using osu.Game.Rulesets.Judgements;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Scoring;
using osu.Game.Skinning;
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using osuTK;
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namespace osu.Game.Screens.Play.HUD
{
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public class PerformancePointsCounter : RollingCounter<int>, ISkinnableDrawable
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{
public bool UsesFixedAnchor { get; set; }
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protected override bool IsRollingProportional => true;
protected override double RollingDuration => 1000;
private const float alpha_when_invalid = 0.3f;
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[CanBeNull]
[Resolved(CanBeNull = true)]
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private ScoreProcessor scoreProcessor { get; set; }
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[Resolved(CanBeNull = true)]
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[CanBeNull]
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private GameplayState gameplayState { get; set; }
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[CanBeNull]
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private List<TimedDifficultyAttributes> timedAttributes;
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private readonly CancellationTokenSource loadCancellationSource = new CancellationTokenSource();
private JudgementResult lastJudgement;
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public PerformancePointsCounter()
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{
Current.Value = DisplayedCount = 0;
}
private Mod[] clonedMods;
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[BackgroundDependencyLoader]
private void load(OsuColour colours, BeatmapDifficultyCache difficultyCache)
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{
Colour = colours.BlueLighter;
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if (gameplayState != null)
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{
clonedMods = gameplayState.Mods.Select(m => m.DeepClone()).ToArray();
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var gameplayWorkingBeatmap = new GameplayWorkingBeatmap(gameplayState.Beatmap);
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difficultyCache.GetTimedDifficultyAttributesAsync(gameplayWorkingBeatmap, gameplayState.Ruleset, clonedMods, loadCancellationSource.Token)
.ContinueWith(r => Schedule(() =>
{
timedAttributes = r.Result;
IsValid = true;
if (lastJudgement != null)
onJudgementChanged(lastJudgement);
}), TaskContinuationOptions.OnlyOnRanToCompletion);
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}
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}
protected override void LoadComplete()
{
base.LoadComplete();
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if (scoreProcessor != null)
{
scoreProcessor.NewJudgement += onJudgementChanged;
scoreProcessor.JudgementReverted += onJudgementChanged;
}
}
private bool isValid;
protected bool IsValid
{
set
{
if (value == isValid)
return;
isValid = value;
DrawableCount.FadeTo(isValid ? 1 : alpha_when_invalid, 1000, Easing.OutQuint);
}
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}
private void onJudgementChanged(JudgementResult judgement)
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{
lastJudgement = judgement;
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var attrib = getAttributeAtTime(judgement);
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if (gameplayState == null || attrib == null)
{
IsValid = false;
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return;
}
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// awkward but we need to make sure the true mods are not passed to PerformanceCalculator as it makes a mess of track applications.
var scoreInfo = gameplayState.Score.ScoreInfo.DeepClone();
scoreInfo.Mods = clonedMods;
var calculator = gameplayState.Ruleset.CreatePerformanceCalculator(attrib, scoreInfo);
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Current.Value = (int)Math.Round(calculator?.Calculate() ?? 0, MidpointRounding.AwayFromZero);
IsValid = true;
}
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[CanBeNull]
private DifficultyAttributes getAttributeAtTime(JudgementResult judgement)
{
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if (timedAttributes == null || timedAttributes.Count == 0)
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return null;
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int attribIndex = timedAttributes.BinarySearch(new TimedDifficultyAttributes(judgement.HitObject.GetEndTime(), null));
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if (attribIndex < 0)
attribIndex = ~attribIndex - 1;
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return timedAttributes[Math.Clamp(attribIndex, 0, timedAttributes.Count - 1)].Attributes;
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}
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protected override LocalisableString FormatCount(int count) => count.ToString(@"D");
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protected override IHasText CreateText() => new TextComponent
{
Alpha = alpha_when_invalid
};
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protected override void Dispose(bool isDisposing)
{
base.Dispose(isDisposing);
if (scoreProcessor != null)
scoreProcessor.NewJudgement -= onJudgementChanged;
loadCancellationSource?.Cancel();
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}
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private class TextComponent : CompositeDrawable, IHasText
{
public LocalisableString Text
{
get => text.Text;
set => text.Text = value;
}
private readonly OsuSpriteText text;
public TextComponent()
{
AutoSizeAxes = Axes.Both;
InternalChild = new FillFlowContainer
{
AutoSizeAxes = Axes.Both,
Spacing = new Vector2(2),
Children = new Drawable[]
{
text = new OsuSpriteText
{
Anchor = Anchor.BottomLeft,
Origin = Anchor.BottomLeft,
Font = OsuFont.Numeric.With(size: 16)
},
new OsuSpriteText
{
Anchor = Anchor.BottomLeft,
Origin = Anchor.BottomLeft,
Text = @"pp",
Font = OsuFont.Numeric.With(size: 8),
Padding = new MarginPadding { Bottom = 1.5f }, // align baseline better
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}
}
};
}
}
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// TODO: This class shouldn't exist, but requires breaking changes to allow DifficultyCalculator to receive an IBeatmap.
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private class GameplayWorkingBeatmap : WorkingBeatmap
{
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private readonly IBeatmap gameplayBeatmap;
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public GameplayWorkingBeatmap(IBeatmap gameplayBeatmap)
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: base(gameplayBeatmap.BeatmapInfo, null)
{
this.gameplayBeatmap = gameplayBeatmap;
}
public override IBeatmap GetPlayableBeatmap(RulesetInfo ruleset, IReadOnlyList<Mod> mods = null, TimeSpan? timeout = null)
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=> gameplayBeatmap;
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protected override IBeatmap GetBeatmap() => gameplayBeatmap;
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protected override Texture GetBackground() => throw new NotImplementedException();
protected override Track GetBeatmapTrack() => throw new NotImplementedException();
protected internal override ISkin GetSkin() => throw new NotImplementedException();
public override Stream GetStream(string storagePath) => throw new NotImplementedException();
}
}
}