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Merge pull request #2903 from smoogipoo/storyboard-samples

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Implement storyboard sample playback
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Dean Herbert 2018-07-13 18:48:05 +09:00 committed by GitHub
commit cd31df7c2e
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2 changed files with 72 additions and 6 deletions
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69
osu.Game/Storyboards/Drawables/DrawableStoryboardSample.cs Normal file
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@ -0,0 +1,69 @@
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using System.IO;
using osu.Framework.Allocation;
using osu.Framework.Audio.Sample;
using osu.Framework.Graphics;
using osu.Game.Beatmaps;
namespace osu.Game.Storyboards.Drawables
{
public class DrawableStoryboardSample : Component
{
/// <summary>
/// The amount of time allowable beyond the start time of the sample, for the sample to start.
/// </summary>
private const double allowable_late_start = 100;
private readonly StoryboardSample sample;
private SampleChannel channel;
public override bool RemoveWhenNotAlive => false;
public DrawableStoryboardSample(StoryboardSample sample)
{
this.sample = sample;
LifetimeStart = sample.Time;
}
[BackgroundDependencyLoader]
private void load(IBindableBeatmap beatmap)
{
// Try first with the full name, then attempt with no path
channel = beatmap.Value.Skin.GetSample(sample.Path) ?? beatmap.Value.Skin.GetSample(Path.ChangeExtension(sample.Path, null));
if (channel != null)
channel.Volume.Value = sample.Volume / 100;
}
protected override void Update()
{
base.Update();
// TODO: this logic will need to be consolidated with other game samples like hitsounds.
if (Time.Current < sample.Time)
{
// We've rewound before the start time of the sample
channel?.Stop();
// In the case that the user fast-forwards to a point far beyond the start time of the sample,
// we want to be able to fall into the if-conditional below (therefore we must not have a life time end)
LifetimeStart = sample.Time;
LifetimeEnd = double.MaxValue;
}
else if (Time.Current - Time.Elapsed < sample.Time)
{
// We've passed the start time of the sample. We only play the sample if we're within an allowable range
// from the sample's start, to reduce layering if we've been fast-forwarded far into the future
if (Time.Current - sample.Time < allowable_late_start)
channel?.Play();
// In the case that the user rewinds to a point far behind the start time of the sample,
// we want to be able to fall into the if-conditional above (therefore we must not have a life time start)
LifetimeStart = double.MinValue;
LifetimeEnd = sample.Time;
}
}
}
}

9
osu.Game/Storyboards/StoryboardSample.cs
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@ -2,14 +2,14 @@
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using osu.Framework.Graphics;
using System;
using osu.Game.Storyboards.Drawables;
namespace osu.Game.Storyboards
{
public class StoryboardSample : IStoryboardElement
{
public string Path { get; set; }
public bool IsDrawable => false;
public bool IsDrawable => true;
public double Time;
public float Volume;
@ -21,9 +21,6 @@ namespace osu.Game.Storyboards
Volume = volume;
}
public Drawable CreateDrawable()
{
throw new InvalidOperationException();
}
public Drawable CreateDrawable() => new DrawableStoryboardSample(this);
}
}