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78 lines
2.5 KiB
C#
78 lines
2.5 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.Collections.Generic;
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using System.Linq;
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using osu.Framework.Bindables;
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using osu.Framework.Timing;
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using osu.Framework.Utils;
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namespace osu.Game.Screens.Play
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{
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/// <summary>
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/// A clock which is used for gameplay elements that need to follow audio time 1:1.
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/// Exposed via DI by <see cref="GameplayClockContainer"/>.
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/// <remarks>
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/// The main purpose of this clock is to stop components using it from accidentally processing the main
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/// <see cref="IFrameBasedClock"/>, as this should only be done once to ensure accuracy.
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/// </remarks>
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/// </summary>
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public class GameplayClock : IFrameBasedClock
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{
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internal readonly IFrameBasedClock UnderlyingClock;
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public readonly BindableBool IsPaused = new BindableBool();
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/// <summary>
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/// All adjustments applied to this clock which don't come from gameplay or mods.
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/// </summary>
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public virtual IEnumerable<Bindable<double>> NonGameplayAdjustments => Enumerable.Empty<Bindable<double>>();
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public GameplayClock(IFrameBasedClock underlyingClock)
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{
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UnderlyingClock = underlyingClock;
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}
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public double CurrentTime => UnderlyingClock.CurrentTime;
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public double Rate => UnderlyingClock.Rate;
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/// <summary>
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/// The rate of gameplay when playback is at 100%.
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/// This excludes any seeking / user adjustments.
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/// </summary>
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public double TrueGameplayRate
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{
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get
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{
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double baseRate = Rate;
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foreach (var adjustment in NonGameplayAdjustments)
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{
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if (Precision.AlmostEquals(adjustment.Value, 0))
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return 0;
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baseRate /= adjustment.Value;
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}
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return baseRate;
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}
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}
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public bool IsRunning => UnderlyingClock.IsRunning;
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public void ProcessFrame()
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{
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// intentionally not updating the underlying clock (handled externally).
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}
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public double ElapsedFrameTime => UnderlyingClock.ElapsedFrameTime;
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public double FramesPerSecond => UnderlyingClock.FramesPerSecond;
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public FrameTimeInfo TimeInfo => UnderlyingClock.TimeInfo;
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public IClock Source => UnderlyingClock;
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}
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}
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