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osu-lazer/osu.Game/Overlays/BeatmapSet/BeatmapPicker.cs

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// 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;
using System.Linq;
using osu.Framework;
using osu.Framework.Allocation;
using osu.Framework.Configuration;
using osu.Framework.Extensions.Color4Extensions;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Shapes;
using osu.Framework.Input;
using osu.Game.Beatmaps;
using osu.Game.Beatmaps.Drawables;
using osu.Game.Graphics;
using osu.Game.Graphics.Containers;
using osu.Game.Graphics.Sprites;
using OpenTK;
using OpenTK.Graphics;
namespace osu.Game.Overlays.BeatmapSet
{
public class BeatmapPicker : Container
{
private const float tile_icon_padding = 7;
private const float tile_spacing = 2;
private readonly DifficultiesContainer difficulties;
private readonly OsuSpriteText version, starRating;
private readonly Statistic plays, favourites;
public readonly Bindable<BeatmapInfo> Beatmap = new Bindable<BeatmapInfo>();
private BeatmapSetInfo beatmapSet;
public BeatmapSetInfo BeatmapSet
{
get { return beatmapSet; }
set
{
if (value == beatmapSet) return;
beatmapSet = value;
updateDisplay();
}
}
private void updateDisplay()
{
difficulties.Clear();
if (BeatmapSet != null)
{
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difficulties.ChildrenEnumerable = BeatmapSet.Beatmaps.OrderBy(beatmap => beatmap.StarDifficulty).Select(b => new DifficultySelectorButton(b)
{
State = DifficultySelectorState.NotSelected,
OnHovered = beatmap =>
{
showBeatmap(beatmap);
starRating.Text = beatmap.StarDifficulty.ToString("Star Difficulty 0.##");
starRating.FadeIn(100);
},
OnClicked = beatmap => { Beatmap.Value = beatmap; },
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});
}
starRating.FadeOut(100);
Beatmap.Value = BeatmapSet?.Beatmaps.FirstOrDefault();
plays.Value = BeatmapSet?.OnlineInfo.PlayCount ?? 0;
favourites.Value = BeatmapSet?.OnlineInfo.FavouriteCount ?? 0;
updateDifficultyButtons();
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}
public BeatmapPicker()
{
RelativeSizeAxes = Axes.X;
AutoSizeAxes = Axes.Y;
Children = new Drawable[]
{
new FillFlowContainer
{
AutoSizeAxes = Axes.Y,
RelativeSizeAxes = Axes.X,
Direction = FillDirection.Vertical,
Children = new Drawable[]
{
difficulties = new DifficultiesContainer
{
AutoSizeAxes = Axes.Both,
Margin = new MarginPadding { Left = -(tile_icon_padding + tile_spacing / 2) },
OnLostHover = () =>
{
showBeatmap(Beatmap.Value);
starRating.FadeOut(100);
},
},
new FillFlowContainer
{
AutoSizeAxes = Axes.Both,
Margin = new MarginPadding { Top = 10 },
Spacing = new Vector2(5f),
Children = new[]
{
version = new OsuSpriteText
{
Anchor = Anchor.BottomLeft,
Origin = Anchor.BottomLeft,
TextSize = 20,
Font = @"Exo2.0-Bold",
},
starRating = new OsuSpriteText
{
Anchor = Anchor.BottomLeft,
Origin = Anchor.BottomLeft,
TextSize = 13,
Font = @"Exo2.0-Bold",
Text = "Star Difficulty",
Alpha = 0,
Margin = new MarginPadding { Bottom = 1 },
},
},
},
new FillFlowContainer
{
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
Spacing = new Vector2(10f),
Margin = new MarginPadding { Top = 5 },
Children = new[]
{
plays = new Statistic(FontAwesome.fa_play_circle),
favourites = new Statistic(FontAwesome.fa_heart),
},
},
},
},
};
Beatmap.ValueChanged += b =>
{
showBeatmap(b);
updateDifficultyButtons();
};
}
[BackgroundDependencyLoader]
private void load(OsuColour colours)
{
starRating.Colour = colours.Yellow;
updateDisplay();
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}
protected override void LoadComplete()
{
base.LoadComplete();
// done here so everything can bind in intialization and get the first trigger
Beatmap.TriggerChange();
}
private void showBeatmap(BeatmapInfo beatmap)
{
version.Text = beatmap?.Version;
}
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private void updateDifficultyButtons()
{
difficulties.Children.ToList().ForEach(diff => diff.State = diff.Beatmap == Beatmap.Value ? DifficultySelectorState.Selected : DifficultySelectorState.NotSelected);
}
private class DifficultiesContainer : FillFlowContainer<DifficultySelectorButton>
{
public Action OnLostHover;
protected override void OnHoverLost(InputState state)
{
base.OnHoverLost(state);
OnLostHover?.Invoke();
}
}
private class DifficultySelectorButton : OsuClickableContainer, IStateful<DifficultySelectorState>
{
private const float transition_duration = 100;
private const float size = 52;
private readonly Container bg;
private readonly DifficultyIcon icon;
public readonly BeatmapInfo Beatmap;
public Action<BeatmapInfo> OnHovered;
public Action<BeatmapInfo> OnClicked;
public event Action<DifficultySelectorState> StateChanged;
private DifficultySelectorState state;
public DifficultySelectorState State
{
get { return state; }
set
{
if (value == state) return;
state = value;
StateChanged?.Invoke(State);
if (value == DifficultySelectorState.Selected)
fadeIn();
else
fadeOut();
}
}
public DifficultySelectorButton(BeatmapInfo beatmap)
{
Beatmap = beatmap;
Size = new Vector2(size);
Margin = new MarginPadding { Horizontal = tile_spacing / 2 };
Children = new Drawable[]
{
bg = new Container
{
RelativeSizeAxes = Axes.Both,
Masking = true,
CornerRadius = 4,
Child = new Box
{
RelativeSizeAxes = Axes.Both,
Colour = Color4.Black.Opacity(0.5f),
},
},
icon = new DifficultyIcon(beatmap)
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
Size = new Vector2(size - tile_icon_padding * 2),
Margin = new MarginPadding { Bottom = 1 },
},
};
}
protected override bool OnHover(InputState state)
{
fadeIn();
OnHovered?.Invoke(Beatmap);
return base.OnHover(state);
}
protected override void OnHoverLost(InputState state)
{
if (State == DifficultySelectorState.NotSelected)
fadeOut();
base.OnHoverLost(state);
}
protected override bool OnClick(InputState state)
{
OnClicked?.Invoke(Beatmap);
return base.OnClick(state);
}
private void fadeIn()
{
bg.FadeIn(transition_duration);
icon.FadeIn(transition_duration);
}
private void fadeOut()
{
bg.FadeOut();
icon.FadeTo(0.7f, transition_duration);
}
}
private class Statistic : FillFlowContainer
{
private readonly OsuSpriteText text;
private int value;
public int Value
{
get { return value; }
set
{
this.value = value;
text.Text = Value.ToString(@"N0");
}
}
public Statistic(FontAwesome icon)
{
AutoSizeAxes = Axes.Both;
Direction = FillDirection.Horizontal;
Spacing = new Vector2(2f);
Children = new Drawable[]
{
new SpriteIcon
{
Anchor = Anchor.CentreLeft,
Origin = Anchor.CentreLeft,
Icon = icon,
Shadow = true,
Size = new Vector2(13),
},
text = new OsuSpriteText
{
Anchor = Anchor.CentreLeft,
Origin = Anchor.CentreLeft,
Font = @"Exo2.0-SemiBoldItalic",
TextSize = 14,
},
};
}
}
private enum DifficultySelectorState
{
Selected,
NotSelected,
}
}
}