osu/osu.Game/Screens/Multi/Components/ReadyButton.cs

97 lines
3.1 KiB
C#
Raw Normal View History

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.Linq;
using System.Linq.Expressions;
using osu.Framework.Allocation;
2019-02-21 10:04:31 +00:00
using osu.Framework.Bindables;
using osu.Game.Beatmaps;
2020-02-20 09:39:10 +00:00
using osu.Game.Graphics;
2020-02-14 11:14:25 +00:00
using osu.Game.Graphics.UserInterface;
using osu.Game.Online.Multiplayer;
2020-12-18 17:52:51 +00:00
namespace osu.Game.Screens.Multi.Components
{
public abstract class ReadyButton : TriangleButton
{
public readonly Bindable<PlaylistItem> SelectedItem = new Bindable<PlaylistItem>();
public new readonly BindableBool Enabled = new BindableBool();
[Resolved]
protected IBindable<WorkingBeatmap> GameBeatmap { get; private set; }
[Resolved]
private BeatmapManager beatmaps { get; set; }
private bool hasBeatmap;
private IBindable<WeakReference<BeatmapSetInfo>> managerUpdated;
2020-05-19 07:44:22 +00:00
private IBindable<WeakReference<BeatmapSetInfo>> managerRemoved;
[BackgroundDependencyLoader]
2020-02-20 09:39:10 +00:00
private void load(OsuColour colours)
{
managerUpdated = beatmaps.ItemUpdated.GetBoundCopy();
managerUpdated.BindValueChanged(beatmapUpdated);
2020-05-19 07:44:22 +00:00
managerRemoved = beatmaps.ItemRemoved.GetBoundCopy();
managerRemoved.BindValueChanged(beatmapRemoved);
SelectedItem.BindValueChanged(item => updateSelectedItem(item.NewValue), true);
}
private void updateSelectedItem(PlaylistItem item)
{
hasBeatmap = findBeatmap(expr => beatmaps.QueryBeatmap(expr));
}
private void beatmapUpdated(ValueChangedEvent<WeakReference<BeatmapSetInfo>> weakSet)
{
2020-05-19 07:44:22 +00:00
if (weakSet.NewValue.TryGetTarget(out var set))
{
if (findBeatmap(expr => set.Beatmaps.AsQueryable().FirstOrDefault(expr)))
2020-05-19 07:44:22 +00:00
Schedule(() => hasBeatmap = true);
}
}
2020-05-19 07:44:22 +00:00
private void beatmapRemoved(ValueChangedEvent<WeakReference<BeatmapSetInfo>> weakSet)
{
2020-05-19 07:44:22 +00:00
if (weakSet.NewValue.TryGetTarget(out var set))
{
if (findBeatmap(expr => set.Beatmaps.AsQueryable().FirstOrDefault(expr)))
2020-05-19 07:44:22 +00:00
Schedule(() => hasBeatmap = false);
}
}
private bool findBeatmap(Func<Expression<Func<BeatmapInfo, bool>>, BeatmapInfo> expression)
{
int? beatmapId = SelectedItem.Value?.Beatmap.Value?.OnlineBeatmapID;
string checksum = SelectedItem.Value?.Beatmap.Value?.MD5Hash;
if (beatmapId == null || checksum == null)
return false;
return expression(b => b.OnlineBeatmapID == beatmapId && b.MD5Hash == checksum) != null;
}
protected override void Update()
{
base.Update();
updateEnabledState();
}
private void updateEnabledState()
{
if (GameBeatmap.Value == null || SelectedItem.Value == null)
{
base.Enabled.Value = false;
return;
}
base.Enabled.Value = hasBeatmap && Enabled.Value;
}
}
}