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osu-lazer/osu.Game/Screens/OnlinePlay/Multiplayer/Spectate/MultiplayerSpectatorLeaderboard.cs
2021-04-09 17:31:14 +09:00

83 lines
2.6 KiB
C#

// 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.Linq;
using osu.Framework.Timing;
using osu.Game.Online.Spectator;
using osu.Game.Rulesets.Scoring;
using osu.Game.Screens.Play.HUD;
namespace osu.Game.Screens.OnlinePlay.Multiplayer.Spectate
{
public class MultiplayerSpectatorLeaderboard : MultiplayerGameplayLeaderboard
{
private readonly Dictionary<int, TrackedUserData> trackedData = new Dictionary<int, TrackedUserData>();
public MultiplayerSpectatorLeaderboard(ScoreProcessor scoreProcessor, int[] userIds)
: base(scoreProcessor, userIds)
{
}
public void AddSource(int userId, IClock source) => trackedData[userId] = new TrackedUserData(source);
public void RemoveSource(int userId, IClock source) => trackedData.Remove(userId);
protected override void OnIncomingFrames(int userId, FrameDataBundle bundle)
{
if (!trackedData.TryGetValue(userId, out var data))
return;
data.Frames.Add(new TimedFrameHeader(bundle.Frames.First().Time, bundle.Header));
}
protected override void Update()
{
base.Update();
foreach (var (userId, data) in trackedData)
{
var targetTime = data.Clock.CurrentTime;
int frameIndex = data.Frames.BinarySearch(new TimedFrameHeader(targetTime));
if (frameIndex < 0)
frameIndex = ~frameIndex;
frameIndex = Math.Clamp(frameIndex - 1, 0, data.Frames.Count - 1);
SetCurrentFrame(userId, data.Frames[frameIndex].Header);
}
}
private class TrackedUserData
{
public readonly IClock Clock;
public readonly List<TimedFrameHeader> Frames = new List<TimedFrameHeader>();
public TrackedUserData(IClock clock)
{
Clock = clock;
}
}
private class TimedFrameHeader : IComparable<TimedFrameHeader>
{
public readonly double Time;
public readonly FrameHeader Header;
public TimedFrameHeader(double time)
{
Time = time;
}
public TimedFrameHeader(double time, FrameHeader header)
{
Time = time;
Header = header;
}
public int CompareTo(TimedFrameHeader other) => Time.CompareTo(other.Time);
}
}
}