osu/osu.Game/Overlays/Direct/PlayButton.cs
2018-02-22 15:01:53 +09:00

214 lines
6.4 KiB
C#

// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using OpenTK.Graphics;
using osu.Framework.Allocation;
using osu.Framework.Audio;
using osu.Framework.Audio.Track;
using osu.Framework.Configuration;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Input;
using osu.Framework.IO.Stores;
using osu.Game.Beatmaps;
using osu.Game.Graphics;
using osu.Game.Graphics.UserInterface;
namespace osu.Game.Overlays.Direct
{
public class PlayButton : Container
{
public readonly Bindable<bool> Playing = new Bindable<bool>();
public Track Preview { get; private set; }
private BeatmapSetInfo beatmapSet;
public BeatmapSetInfo BeatmapSet
{
get { return beatmapSet; }
set
{
if (value == beatmapSet) return;
beatmapSet = value;
Playing.Value = false;
trackLoader = null;
Preview = null;
}
}
private Color4 hoverColour;
private readonly SpriteIcon icon;
private readonly LoadingAnimation loadingAnimation;
private readonly BindableDouble muteBindable = new BindableDouble();
private const float transition_duration = 500;
private bool loading
{
set
{
if (value)
{
loadingAnimation.Show();
icon.FadeOut(transition_duration * 5, Easing.OutQuint);
}
else
{
loadingAnimation.Hide();
icon.FadeIn(transition_duration, Easing.OutQuint);
}
}
}
public PlayButton(BeatmapSetInfo setInfo = null)
{
BeatmapSet = setInfo;
AddRange(new Drawable[]
{
icon = new SpriteIcon
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
FillMode = FillMode.Fit,
RelativeSizeAxes = Axes.Both,
Icon = FontAwesome.fa_play,
},
loadingAnimation = new LoadingAnimation(),
});
Playing.ValueChanged += playing =>
{
icon.Icon = playing ? FontAwesome.fa_pause : FontAwesome.fa_play;
icon.FadeColour(playing || IsHovered ? hoverColour : Color4.White, 120, Easing.InOutQuint);
updatePreviewTrack(playing);
};
}
[BackgroundDependencyLoader]
private void load(OsuColour colour, AudioManager audio)
{
hoverColour = colour.Yellow;
this.audio = audio;
}
protected override bool OnClick(InputState state)
{
Playing.Value = !Playing.Value;
return true;
}
protected override bool OnHover(InputState state)
{
icon.FadeColour(hoverColour, 120, Easing.InOutQuint);
return base.OnHover(state);
}
protected override void OnHoverLost(InputState state)
{
if (!Playing.Value)
icon.FadeColour(Color4.White, 120, Easing.InOutQuint);
base.OnHoverLost(state);
}
protected override void Update()
{
base.Update();
if (Preview?.HasCompleted ?? false)
{
Playing.Value = false;
Preview = null;
}
}
private void updatePreviewTrack(bool playing)
{
if (playing)
{
if (Preview == null)
{
beginAudioLoad();
return;
}
Preview.Restart();
audio.Track.AddAdjustment(AdjustableProperty.Volume, muteBindable);
}
else
{
audio.Track.RemoveAdjustment(AdjustableProperty.Volume, muteBindable);
Preview?.Stop();
loading = false;
}
}
protected override void Dispose(bool isDisposing)
{
base.Dispose(isDisposing);
Playing.Value = false;
}
private TrackLoader trackLoader;
private AudioManager audio;
private void beginAudioLoad()
{
if (trackLoader != null)
{
Preview = trackLoader.Preview;
Playing.TriggerChange();
return;
}
loading = true;
LoadComponentAsync(trackLoader = new TrackLoader($"https://b.ppy.sh/preview/{BeatmapSet.OnlineBeatmapSetID}.mp3"),
d =>
{
// We may have been replaced by another loader
if (trackLoader != d) return;
Preview = d?.Preview;
Playing.TriggerChange();
loading = false;
Add(trackLoader);
});
}
private class TrackLoader : Drawable
{
private readonly string preview;
public Track Preview;
private TrackManager trackManager;
public TrackLoader(string preview)
{
this.preview = preview;
}
[BackgroundDependencyLoader]
private void load(AudioManager audio, FrameworkConfigManager config)
{
// create a local trackManager to bypass the mute we are applying above.
audio.AddItem(trackManager = new TrackManager(new OnlineStore()));
// add back the user's music volume setting (since we are no longer in the global TrackManager's hierarchy).
config.BindWith(FrameworkSetting.VolumeMusic, trackManager.Volume);
Preview = trackManager.Get(preview);
}
protected override void Dispose(bool isDisposing)
{
base.Dispose(isDisposing);
trackManager?.Dispose();
}
}
}
}