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SongSelect.cs
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SongSelect.cs
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// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using System.Threading;
using OpenTK;
using OpenTK.Input;
using osu.Framework.Allocation;
using osu.Framework.Audio;
using osu.Framework.Audio.Sample;
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.Screens;
using osu.Framework.Threading;
using osu.Game.Beatmaps;
using osu.Game.Database;
using osu.Game.Graphics;
using osu.Game.Graphics.Containers;
using osu.Game.Overlays;
using osu.Game.Screens.Backgrounds;
using osu.Game.Screens.Select.Options;
namespace osu.Game.Screens.Select
{
public abstract class SongSelect : OsuScreen
{
private readonly Bindable<RulesetInfo> ruleset = new Bindable<RulesetInfo>();
private BeatmapDatabase database;
protected override BackgroundScreen CreateBackground() => new BackgroundScreenBeatmap(Beatmap);
private readonly BeatmapCarousel carousel;
private TrackManager trackManager;
private DialogOverlay dialogOverlay;
private static readonly Vector2 wedged_container_size = new Vector2(0.5f, 245);
private const float left_area_padding = 20;
private readonly BeatmapInfoWedge beatmapInfoWedge;
protected Container LeftContent;
private static readonly Vector2 background_blur = new Vector2(20);
private CancellationTokenSource initialAddSetsTask;
private SampleChannel sampleChangeDifficulty;
private SampleChannel sampleChangeBeatmap;
protected virtual bool ShowFooter => true;
/// <summary>
/// Can be null if <see cref="ShowFooter"/> is false.
/// </summary>
protected readonly BeatmapOptionsOverlay BeatmapOptions;
/// <summary>
/// Can be null if <see cref="ShowFooter"/> is false.
/// </summary>
protected readonly Footer Footer;
/// <summary>
/// Contains any panel which is triggered by a footer button.
/// Helps keep them located beneath the footer itself.
/// </summary>
protected readonly Container FooterPanels;
public readonly FilterControl FilterControl;
protected SongSelect()
{
const float carousel_width = 640;
const float filter_height = 100;
Add(new ParallaxContainer
{
Padding = new MarginPadding { Top = filter_height },
ParallaxAmount = 0.005f,
RelativeSizeAxes = Axes.Both,
Children = new[]
{
new WedgeBackground
{
RelativeSizeAxes = Axes.Both,
Padding = new MarginPadding { Right = carousel_width * 0.76f },
}
}
});
Add(LeftContent = new Container
{
Origin = Anchor.BottomLeft,
Anchor = Anchor.BottomLeft,
RelativeSizeAxes = Axes.Both,
Size = new Vector2(wedged_container_size.X, 1),
Padding = new MarginPadding
{
Bottom = 50,
Top = wedged_container_size.Y + left_area_padding,
Left = left_area_padding,
Right = left_area_padding * 2,
}
});
Add(carousel = new BeatmapCarousel
{
RelativeSizeAxes = Axes.Y,
Size = new Vector2(carousel_width, 1),
Anchor = Anchor.CentreRight,
Origin = Anchor.CentreRight,
SelectionChanged = selectionChanged,
StartRequested = raiseSelect
});
Add(FilterControl = new FilterControl
{
RelativeSizeAxes = Axes.X,
Height = filter_height,
FilterChanged = criteria => filterChanged(criteria),
Exit = Exit,
});
Add(beatmapInfoWedge = new BeatmapInfoWedge
{
Alpha = 0,
Size = wedged_container_size,
RelativeSizeAxes = Axes.X,
Margin = new MarginPadding
{
Top = left_area_padding,
Right = left_area_padding,
},
X = -50,
});
if (ShowFooter)
{
Add(FooterPanels = new Container
{
Anchor = Anchor.BottomLeft,
Origin = Anchor.BottomLeft,
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Margin = new MarginPadding
{
Bottom = Footer.HEIGHT,
},
});
Add(Footer = new Footer
{
OnBack = Exit,
OnStart = raiseSelect,
});
FooterPanels.Add(BeatmapOptions = new BeatmapOptionsOverlay());
}
}
[BackgroundDependencyLoader(permitNulls: true)]
private void load(BeatmapDatabase beatmaps, AudioManager audio, DialogOverlay dialog, OsuGame osu, OsuColour colours)
{
if (Footer != null)
{
Footer.AddButton(@"random", colours.Green, SelectRandom, Key.F2);
Footer.AddButton(@"options", colours.Blue, BeatmapOptions.ToggleVisibility, Key.F3);
BeatmapOptions.AddButton(@"Delete", @"Beatmap", FontAwesome.fa_trash, colours.Pink, promptDelete, Key.Number4, float.MaxValue);
}
if (database == null)
database = beatmaps;
if (osu != null)
ruleset.BindTo(osu.Ruleset);
database.BeatmapSetAdded += onBeatmapSetAdded;
database.BeatmapSetRemoved += onBeatmapSetRemoved;
trackManager = audio.Track;
dialogOverlay = dialog;
sampleChangeDifficulty = audio.Sample.Get(@"SongSelect/select-difficulty");
sampleChangeBeatmap = audio.Sample.Get(@"SongSelect/select-expand");
initialAddSetsTask = new CancellationTokenSource();
carousel.BeatmapsChanged = beatmapsLoaded;
carousel.Beatmaps = database.GetAllWithChildren<BeatmapSetInfo>(b => !b.DeletePending);
}
private void beatmapsLoaded()
{
if (Beatmap != null)
carousel.SelectBeatmap(Beatmap.BeatmapInfo, false);
else
carousel.SelectNext();
}
private void raiseSelect()
{
var pendingSelection = selectionChangedDebounce;
selectionChangedDebounce = null;
pendingSelection?.RunTask();
pendingSelection?.Cancel(); // cancel the already scheduled task.
if (Beatmap == null) return;
OnSelected();
}
public void SelectRandom() => carousel.SelectRandom();
protected abstract void OnSelected();
private void filterChanged(FilterCriteria criteria, bool debounce = true)
{
carousel.Filter(criteria, debounce);
}
private void onBeatmapSetAdded(BeatmapSetInfo s) => carousel.AddBeatmap(s);
private void onBeatmapSetRemoved(BeatmapSetInfo s) => Schedule(() => removeBeatmapSet(s));
protected override void OnEntering(Screen last)
{
base.OnEntering(last);
ensurePlayingSelected();
changeBackground(Beatmap);
Content.FadeInFromZero(250);
beatmapInfoWedge.State = Visibility.Visible;
FilterControl.Activate();
}
protected override void OnResuming(Screen last)
{
changeBackground(Beatmap);
ensurePlayingSelected();
base.OnResuming(last);
Content.FadeIn(250);
Content.ScaleTo(1, 250, EasingTypes.OutSine);
FilterControl.Activate();
}
protected override void OnSuspending(Screen next)
{
Content.ScaleTo(1.1f, 250, EasingTypes.InSine);
Content.FadeOut(250);
FilterControl.Deactivate();
base.OnSuspending(next);
}
protected override bool OnExiting(Screen next)
{
beatmapInfoWedge.State = Visibility.Hidden;
Content.FadeOut(100);
FilterControl.Deactivate();
return base.OnExiting(next);
}
protected override void Dispose(bool isDisposing)
{
base.Dispose(isDisposing);
database.BeatmapSetAdded -= onBeatmapSetAdded;
database.BeatmapSetRemoved -= onBeatmapSetRemoved;
initialAddSetsTask.Cancel();
}
private void changeBackground(WorkingBeatmap beatmap)
{
var backgroundModeBeatmap = Background as BackgroundScreenBeatmap;
if (backgroundModeBeatmap != null)
{
backgroundModeBeatmap.Beatmap = beatmap;
backgroundModeBeatmap.BlurTo(background_blur, 1000);
backgroundModeBeatmap.FadeTo(1, 250);
}
beatmapInfoWedge.UpdateBeatmap(beatmap);
}
/// <summary>
/// The global Beatmap was changed.
/// </summary>
protected override void OnBeatmapChanged(WorkingBeatmap beatmap)
{
base.OnBeatmapChanged(beatmap);
//todo: change background in selectionChanged instead; support per-difficulty backgrounds.
changeBackground(beatmap);
carousel.SelectBeatmap(beatmap?.BeatmapInfo);
}
private ScheduledDelegate selectionChangedDebounce;
// We need to keep track of the last selected beatmap ignoring debounce to play the correct selection sounds.
private BeatmapInfo selectionChangeNoBounce;
/// <summary>
/// selection has been changed as the result of interaction with the carousel.
/// </summary>
private void selectionChanged(BeatmapInfo beatmap)
{
bool beatmapSetChange = false;
if (beatmap.Equals(Beatmap?.BeatmapInfo))
return;
if (beatmap.BeatmapSetInfoID == selectionChangeNoBounce?.BeatmapSetInfoID)
sampleChangeDifficulty.Play();
else
{
sampleChangeBeatmap.Play();
beatmapSetChange = true;
}
selectionChangeNoBounce = beatmap;
selectionChangedDebounce?.Cancel();
selectionChangedDebounce = Scheduler.AddDelayed(delegate
{
Beatmap = database.GetWorkingBeatmap(beatmap, Beatmap);
ensurePlayingSelected(beatmapSetChange);
}, 100);
}
private void ensurePlayingSelected(bool preview = false)
{
Track track = Beatmap?.Track;
if (track != null)
{
trackManager.SetExclusive(track);
if (preview)
track.Seek(Beatmap.Metadata.PreviewTime);
track.Start();
}
}
private void removeBeatmapSet(BeatmapSetInfo beatmapSet)
{
carousel.RemoveBeatmap(beatmapSet);
if (carousel.SelectedBeatmap == null)
Beatmap = null;
}
private void promptDelete()
{
if (Beatmap != null)
dialogOverlay?.Push(new BeatmapDeleteDialog(Beatmap));
}
protected override bool OnKeyDown(InputState state, KeyDownEventArgs args)
{
if (args.Repeat) return false;
switch (args.Key)
{
case Key.Enter:
raiseSelect();
return true;
case Key.Delete:
if (state.Keyboard.ShiftPressed)
{
promptDelete();
return true;
}
break;
}
return base.OnKeyDown(state, args);
}
}
}