// 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. #nullable disable using System.Collections.Generic; using System.Linq; using JetBrains.Annotations; using osu.Framework.Allocation; using osu.Framework.Bindables; using osu.Framework.Threading; using osu.Game.Audio; namespace osu.Game.Skinning { public partial class PausableSkinnableSound : SkinnableSound { public double Length => !DrawableSamples.Any() ? 0 : DrawableSamples.Max(sample => sample.Length); public bool RequestedPlaying { get; private set; } public PausableSkinnableSound() { } public PausableSkinnableSound([NotNull] IEnumerable<ISampleInfo> samples) : base(samples) { } public PausableSkinnableSound([NotNull] ISampleInfo sample) : base(sample) { } private readonly IBindable<bool> samplePlaybackDisabled = new Bindable<bool>(); private ScheduledDelegate scheduledStart; [BackgroundDependencyLoader(true)] private void load(ISamplePlaybackDisabler samplePlaybackDisabler) { // if in a gameplay context, pause sample playback when gameplay is paused. if (samplePlaybackDisabler != null) { samplePlaybackDisabled.BindTo(samplePlaybackDisabler.SamplePlaybackDisabled); samplePlaybackDisabled.BindValueChanged(SamplePlaybackDisabledChanged); } } protected virtual void SamplePlaybackDisabledChanged(ValueChangedEvent<bool> disabled) { if (!RequestedPlaying) return; // let non-looping samples that have already been started play out to completion (sounds better than abruptly cutting off). if (!Looping) return; cancelPendingStart(); if (disabled.NewValue) base.Stop(); else { // schedule so we don't start playing a sample which is no longer alive. scheduledStart = Schedule(() => { if (RequestedPlaying) base.Play(); }); } } public override void Play() { cancelPendingStart(); RequestedPlaying = true; if (samplePlaybackDisabled.Value) return; base.Play(); } public override void Stop() { cancelPendingStart(); RequestedPlaying = false; base.Stop(); } private void cancelPendingStart() { scheduledStart?.Cancel(); scheduledStart = null; } } }