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osu-lazer/osu.Game/Overlays/MusicController.cs
2017-04-26 20:04:32 +08:00

517 lines
20 KiB
C#

// 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;
using System.Collections.Generic;
using System.Diagnostics;
using System.Threading.Tasks;
using OpenTK;
using OpenTK.Graphics;
using osu.Framework.Allocation;
using osu.Framework.Audio.Track;
using osu.Framework.Configuration;
using osu.Framework.Extensions;
using osu.Framework.Extensions.Color4Extensions;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Primitives;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Graphics.Textures;
using osu.Framework.Input;
using osu.Framework.Localisation;
using osu.Framework.MathUtils;
using osu.Game.Beatmaps;
using osu.Game.Database;
using osu.Game.Graphics;
using osu.Game.Graphics.Sprites;
namespace osu.Game.Overlays
{
public class MusicController : FocusedOverlayContainer
{
private Drawable currentBackground;
private DragBar progress;
private Button playButton;
private SpriteText title, artist;
private List<BeatmapSetInfo> playList;
private readonly List<BeatmapInfo> playHistory = new List<BeatmapInfo>();
private int playListIndex;
private int playHistoryIndex = -1;
private TrackManager trackManager;
private Bindable<WorkingBeatmap> beatmapSource;
private WorkingBeatmap current;
private BeatmapDatabase beatmaps;
private LocalisationEngine localisation;
private Container dragContainer;
private const float progress_height = 10;
private const float bottom_black_area_height = 55;
public MusicController()
{
Width = 400;
Height = 130;
Margin = new MarginPadding(10);
}
protected override bool OnDragStart(InputState state) => true;
protected override bool OnDrag(InputState state)
{
Trace.Assert(state.Mouse.PositionMouseDown != null, "state.Mouse.PositionMouseDown != null");
Vector2 change = state.Mouse.Position - state.Mouse.PositionMouseDown.Value;
// Diminish the drag distance as we go further to simulate "rubber band" feeling.
change *= change.Length <= 0 ? 0 : (float)Math.Pow(change.Length, 0.7f) / change.Length;
dragContainer.MoveTo(change);
return base.OnDrag(state);
}
protected override bool OnDragEnd(InputState state)
{
dragContainer.MoveTo(Vector2.Zero, 800, EasingTypes.OutElastic);
return base.OnDragEnd(state);
}
[BackgroundDependencyLoader]
private void load(OsuGameBase game, BeatmapDatabase beatmaps, OsuColour colours, LocalisationEngine localisation)
{
Children = new Drawable[]
{
dragContainer = new Container
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
Masking = true,
CornerRadius = 5,
EdgeEffect = new EdgeEffect
{
Type = EdgeEffectType.Shadow,
Colour = Color4.Black.Opacity(40),
Radius = 5,
},
RelativeSizeAxes = Axes.Both,
Children = new Drawable[]
{
title = new OsuSpriteText
{
Origin = Anchor.BottomCentre,
Anchor = Anchor.TopCentre,
Position = new Vector2(0, 40),
TextSize = 25,
Colour = Color4.White,
Text = @"Nothing to play",
Font = @"Exo2.0-MediumItalic"
},
artist = new OsuSpriteText
{
Origin = Anchor.TopCentre,
Anchor = Anchor.TopCentre,
Position = new Vector2(0, 45),
TextSize = 15,
Colour = Color4.White,
Text = @"Nothing to play",
Font = @"Exo2.0-BoldItalic"
},
new Container
{
Padding = new MarginPadding { Bottom = progress_height },
Height = bottom_black_area_height,
RelativeSizeAxes = Axes.X,
Origin = Anchor.BottomCentre,
Anchor = Anchor.BottomCentre,
Children = new Drawable[]
{
new FillFlowContainer<Button>
{
AutoSizeAxes = Axes.Both,
Direction = FillDirection.Horizontal,
Spacing = new Vector2(5),
Origin = Anchor.Centre,
Anchor = Anchor.Centre,
Children = new[]
{
new Button
{
Action = prev,
Icon = FontAwesome.fa_step_backward,
},
playButton = new Button
{
Scale = new Vector2(1.4f),
IconScale = new Vector2(1.4f),
Action = () =>
{
if (current?.Track == null) return;
if (current.Track.IsRunning)
current.Track.Stop();
else
current.Track.Start();
},
Icon = FontAwesome.fa_play_circle_o,
},
new Button
{
Action = next,
Icon = FontAwesome.fa_step_forward,
},
}
},
new Button
{
Origin = Anchor.Centre,
Anchor = Anchor.CentreRight,
Position = new Vector2(-bottom_black_area_height / 2, 0),
Icon = FontAwesome.fa_bars,
},
}
},
progress = new DragBar
{
Origin = Anchor.BottomCentre,
Anchor = Anchor.BottomCentre,
Height = progress_height,
Colour = colours.Yellow,
SeekRequested = seek
}
}
}
};
this.beatmaps = beatmaps;
trackManager = game.Audio.Track;
this.localisation = localisation;
beatmapSource = game.Beatmap ?? new Bindable<WorkingBeatmap>();
playList = beatmaps.GetAllWithChildren<BeatmapSetInfo>();
currentBackground = new MusicControllerBackground();
dragContainer.Add(currentBackground);
}
protected override void LoadComplete()
{
beatmapSource.ValueChanged += workingChanged;
beatmapSource.TriggerChange();
base.LoadComplete();
}
protected override void Update()
{
base.Update();
if (pendingBeatmapSwitch != null)
{
pendingBeatmapSwitch();
pendingBeatmapSwitch = null;
}
if (current?.TrackLoaded ?? false)
{
progress.UpdatePosition(current.Track.Length == 0 ? 0 : (float)(current.Track.CurrentTime / current.Track.Length));
playButton.Icon = current.Track.IsRunning ? FontAwesome.fa_pause_circle_o : FontAwesome.fa_play_circle_o;
if (current.Track.HasCompleted && !current.Track.Looping) next();
}
else
playButton.Icon = FontAwesome.fa_play_circle_o;
}
private void workingChanged(WorkingBeatmap beatmap)
{
progress.IsEnabled = beatmap != null;
if (beatmap == current) return;
bool audioEquals = current?.BeatmapInfo?.AudioEquals(beatmap?.BeatmapInfo) ?? false;
current = beatmap;
updateDisplay(current, audioEquals ? TransformDirection.None : TransformDirection.Next);
appendToHistory(current?.BeatmapInfo);
}
private void appendToHistory(BeatmapInfo beatmap)
{
if (beatmap == null) return;
if (playHistoryIndex >= 0)
{
if (beatmap.AudioEquals(playHistory[playHistoryIndex]))
return;
if (playHistoryIndex < playHistory.Count - 1)
playHistory.RemoveRange(playHistoryIndex + 1, playHistory.Count - playHistoryIndex - 1);
}
playHistory.Insert(++playHistoryIndex, beatmap);
}
private void prev()
{
if (playHistoryIndex > 0)
play(playHistory[--playHistoryIndex], false);
}
private void next()
{
if (playHistoryIndex < playHistory.Count - 1)
play(playHistory[++playHistoryIndex], true);
else
{
if (playList.Count == 0) return;
if (current != null && playList.Count == 1) return;
//shuffle
BeatmapInfo nextToPlay;
do
{
int j = RNG.Next(playListIndex, playList.Count);
if (j != playListIndex)
{
BeatmapSetInfo temp = playList[playListIndex];
playList[playListIndex] = playList[j];
playList[j] = temp;
}
nextToPlay = playList[playListIndex++].Beatmaps[0];
if (playListIndex == playList.Count) playListIndex = 0;
}
while (nextToPlay.AudioEquals(current?.BeatmapInfo));
play(nextToPlay, true);
appendToHistory(nextToPlay);
}
}
private void play(BeatmapInfo info, bool isNext)
{
current = beatmaps.GetWorkingBeatmap(info, current);
Task.Run(() =>
{
trackManager.SetExclusive(current.Track);
current.Track.Start();
beatmapSource.Value = current;
}).ContinueWith(task => Schedule(task.ThrowIfFaulted), TaskContinuationOptions.OnlyOnFaulted);
updateDisplay(current, isNext ? TransformDirection.Next : TransformDirection.Prev);
}
private Action pendingBeatmapSwitch;
private void updateDisplay(WorkingBeatmap beatmap, TransformDirection direction)
{
//we might be off-screen when this update comes in.
//rather than Scheduling, manually handle this to avoid possible memory contention.
pendingBeatmapSwitch = () =>
{
Task.Run(() =>
{
if (beatmap?.Beatmap == null) //this is not needed if a placeholder exists
{
title.Current = null;
title.Text = @"Nothing to play";
artist.Current = null;
artist.Text = @"Nothing to play";
}
else
{
BeatmapMetadata metadata = beatmap.Beatmap.BeatmapInfo.Metadata;
title.Current = localisation.GetUnicodePreference(metadata.TitleUnicode, metadata.Title);
artist.Current = localisation.GetUnicodePreference(metadata.ArtistUnicode, metadata.Artist);
}
});
dragContainer.Add(new AsyncLoadWrapper(new MusicControllerBackground(beatmap)
{
OnLoadComplete = d =>
{
switch (direction)
{
case TransformDirection.Next:
d.Position = new Vector2(400, 0);
d.MoveToX(0, 500, EasingTypes.OutCubic);
currentBackground.MoveToX(-400, 500, EasingTypes.OutCubic);
break;
case TransformDirection.Prev:
d.Position = new Vector2(-400, 0);
d.MoveToX(0, 500, EasingTypes.OutCubic);
currentBackground.MoveToX(400, 500, EasingTypes.OutCubic);
break;
}
currentBackground.Expire();
currentBackground = d;
}
})
{
Depth = float.MaxValue,
});
};
}
private void seek(float position)
{
current?.Track?.Seek(current.Track.Length * position);
current?.Track?.Start();
}
private const float transition_length = 800;
protected override void PopIn()
{
base.PopIn();
FadeIn(transition_length, EasingTypes.OutQuint);
dragContainer.ScaleTo(1, transition_length, EasingTypes.OutElastic);
}
protected override void PopOut()
{
base.PopOut();
FadeOut(transition_length, EasingTypes.OutQuint);
dragContainer.ScaleTo(0.9f, transition_length, EasingTypes.OutQuint);
}
private enum TransformDirection { None, Next, Prev }
private class MusicControllerBackground : BufferedContainer
{
private readonly Sprite sprite;
private readonly WorkingBeatmap beatmap;
public MusicControllerBackground(WorkingBeatmap beatmap = null)
{
this.beatmap = beatmap;
CacheDrawnFrameBuffer = true;
Depth = float.MaxValue;
RelativeSizeAxes = Axes.Both;
Children = new Drawable[]
{
sprite = new Sprite
{
Colour = OsuColour.Gray(150),
FillMode = FillMode.Fill,
},
new Box
{
RelativeSizeAxes = Axes.X,
Height = bottom_black_area_height,
Origin = Anchor.BottomCentre,
Anchor = Anchor.BottomCentre,
Colour = Color4.Black.Opacity(0.5f)
}
};
}
[BackgroundDependencyLoader]
private void load(TextureStore textures)
{
sprite.Texture = beatmap?.Background ?? textures.Get(@"Backgrounds/bg4");
}
}
private class Button : ClickableContainer
{
private readonly TextAwesome icon;
private readonly Box hover;
private readonly Container content;
public FontAwesome Icon
{
get { return icon.Icon; }
set { icon.Icon = value; }
}
private const float button_size = 30;
private Color4 flashColour;
public Vector2 IconScale
{
get { return icon.Scale; }
set { icon.Scale = value; }
}
public Button()
{
AutoSizeAxes = Axes.Both;
Origin = Anchor.Centre;
Anchor = Anchor.Centre;
Children = new Drawable[]
{
content = new Container
{
Size = new Vector2(button_size),
CornerRadius = 5,
Masking = true,
Origin = Anchor.Centre,
Anchor = Anchor.Centre,
EdgeEffect = new EdgeEffect
{
Colour = Color4.Black.Opacity(0.04f),
Type = EdgeEffectType.Shadow,
Radius = 5,
},
Children = new Drawable[]
{
hover = new Box
{
RelativeSizeAxes = Axes.Both,
Alpha = 0,
},
icon = new TextAwesome
{
TextSize = 18,
Origin = Anchor.Centre,
Anchor = Anchor.Centre
}
}
}
};
}
[BackgroundDependencyLoader]
private void load(OsuColour colours)
{
hover.Colour = colours.Yellow.Opacity(0.6f);
flashColour = colours.Yellow;
}
protected override bool OnHover(InputState state)
{
hover.FadeIn(500, EasingTypes.OutQuint);
return base.OnHover(state);
}
protected override void OnHoverLost(InputState state)
{
hover.FadeOut(500, EasingTypes.OutQuint);
base.OnHoverLost(state);
}
protected override bool OnClick(InputState state)
{
hover.FlashColour(flashColour, 800, EasingTypes.OutQuint);
return base.OnClick(state);
}
protected override bool OnMouseDown(InputState state, MouseDownEventArgs args)
{
content.ScaleTo(0.75f, 2000, EasingTypes.OutQuint);
return base.OnMouseDown(state, args);
}
protected override bool OnMouseUp(InputState state, MouseUpEventArgs args)
{
content.ScaleTo(1, 1000, EasingTypes.OutElastic);
return base.OnMouseUp(state, args);
}
}
}
}