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Code Issues Releases Wiki Activity

Refactor how drawable carousel items are constructed

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This commit is contained in:
Dean Herbert 2020-10-12 14:23:18 +09:00
parent 9193f5b0ba
commit 3143224e5b
8 changed files with 177 additions and 142 deletions
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29
osu.Game.Tests/Visual/SongSelect/TestSceneBeatmapCarousel.cs
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@ -709,19 +709,20 @@ namespace osu.Game.Tests.Visual.SongSelect
private void loadBeatmaps(List<BeatmapSetInfo> beatmapSets = null, Func<FilterCriteria> initialCriteria = null, Action<BeatmapCarousel> carouselAdjust = null)
{
createCarousel(carouselAdjust);
if (beatmapSets == null)
{
beatmapSets = new List<BeatmapSetInfo>();
for (int i = 1; i <= set_count; i++)
beatmapSets.Add(createTestBeatmapSet(i));
}
bool changed = false;
AddStep($"Load {(beatmapSets.Count > 0 ? beatmapSets.Count.ToString() : "some")} beatmaps", () =>
createCarousel(c =>
{
carouselAdjust?.Invoke(c);
if (beatmapSets == null)
{
beatmapSets = new List<BeatmapSetInfo>();
for (int i = 1; i <= set_count; i++)
beatmapSets.Add(createTestBeatmapSet(i));
}
carousel.Filter(initialCriteria?.Invoke() ?? new FilterCriteria());
carousel.BeatmapSetsChanged = () => changed = true;
carousel.BeatmapSets = beatmapSets;
@ -807,7 +808,7 @@ namespace osu.Game.Tests.Visual.SongSelect
private bool selectedBeatmapVisible()
{
var currentlySelected = carousel.Items.Find(s => s.Item is CarouselBeatmap && s.Item.State.Value == CarouselItemState.Selected);
var currentlySelected = carousel.Items.FirstOrDefault(s => s.Item is CarouselBeatmap && s.Item.State.Value == CarouselItemState.Selected);
if (currentlySelected == null)
return true;
@ -908,10 +909,10 @@ namespace osu.Game.Tests.Visual.SongSelect
private class TestBeatmapCarousel : BeatmapCarousel
{
public new List<DrawableCarouselItem> Items => base.Items;
public bool PendingFilterTask => PendingFilter != null;
public IEnumerable<DrawableCarouselItem> Items => InternalChildren.OfType<DrawableCarouselItem>();
protected override IEnumerable<BeatmapSetInfo> GetLoadableBeatmaps() => Enumerable.Empty<BeatmapSetInfo>();
}
}

187
osu.Game/Screens/Select/BeatmapCarousel.cs
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@ -96,9 +96,6 @@ namespace osu.Game.Screens.Select
beatmapSets.Select(createCarouselSet).Where(g => g != null).ForEach(newRoot.AddChild);
// preload drawables as the ctor overhead is quite high currently.
_ = newRoot.Drawables;
root = newRoot;
if (selectedBeatmapSet != null && !beatmapSets.Contains(selectedBeatmapSet.BeatmapSet))
selectedBeatmapSet = null;
@ -119,6 +116,8 @@ namespace osu.Game.Screens.Select
}
private readonly List<float> yPositions = new List<float>();
private readonly List<CarouselItem> visibleItems = new List<CarouselItem>();
private readonly Cached itemsCache = new Cached();
private readonly Cached scrollPositionCache = new Cached();
@ -130,8 +129,6 @@ namespace osu.Game.Screens.Select
private readonly List<CarouselBeatmapSet> previouslyVisitedRandomSets = new List<CarouselBeatmapSet>();
private readonly Stack<CarouselBeatmap> randomSelectedBeatmaps = new Stack<CarouselBeatmap>();
protected List<DrawableCarouselItem> Items = new List<DrawableCarouselItem>();
private CarouselRoot root;
private IBindable<WeakReference<BeatmapSetInfo>> itemUpdated;
@ -178,7 +175,8 @@ namespace osu.Game.Screens.Select
itemRestored = beatmaps.BeatmapRestored.GetBoundCopy();
itemRestored.BindValueChanged(beatmapRestored);
loadBeatmapSets(GetLoadableBeatmaps());
if (!beatmapSets.Any())
loadBeatmapSets(GetLoadableBeatmaps());
}
protected virtual IEnumerable<BeatmapSetInfo> GetLoadableBeatmaps() => beatmaps.GetAllUsableBeatmapSetsEnumerable(IncludedDetails.AllButFiles);
@ -558,71 +556,78 @@ namespace osu.Game.Screens.Select
{
base.Update();
//todo: this should only refresh items, not everything here
if (!itemsCache.IsValid)
{
updateItems();
// Remove all items that should no longer be on-screen
scrollableContent.RemoveAll(p => p.Y < visibleUpperBound - p.DrawHeight || p.Y > visibleBottomBound || !p.IsPresent);
// Remove all items that should no longer be on-screen
scrollableContent.RemoveAll(p => p.Y < visibleUpperBound - p.DrawHeight || p.Y > visibleBottomBound || !p.IsPresent);
// Find index range of all items that should be on-screen
Trace.Assert(Items.Count == yPositions.Count);
// Find index range of all items that should be on-screen
int firstIndex = yPositions.BinarySearch(visibleUpperBound - DrawableCarouselItem.MAX_HEIGHT);
if (firstIndex < 0) firstIndex = ~firstIndex;
int lastIndex = yPositions.BinarySearch(visibleBottomBound);
if (lastIndex < 0) lastIndex = ~lastIndex;
int firstIndex = yPositions.BinarySearch(visibleUpperBound - DrawableCarouselItem.MAX_HEIGHT);
if (firstIndex < 0) firstIndex = ~firstIndex;
int lastIndex = yPositions.BinarySearch(visibleBottomBound);
if (lastIndex < 0) lastIndex = ~lastIndex;
scrollableContent.Clear();
int notVisibleCount = 0;
// Add those items within the previously found index range that should be displayed.
for (int i = firstIndex; i < lastIndex; ++i)
{
DrawableCarouselItem item = Items[i];
if (!item.Item.Visible)
// Add those items within the previously found index range that should be displayed.
for (int i = firstIndex; i < lastIndex; ++i)
{
if (!item.IsPresent)
notVisibleCount++;
continue;
}
DrawableCarouselItem item = visibleItems[i].CreateDrawableRepresentation();
float depth = i + (item is DrawableCarouselBeatmapSet ? -Items.Count : 0);
item.Y = yPositions[i];
item.Depth = i;
// Only add if we're not already part of the content.
if (!scrollableContent.Contains(item))
{
// Makes sure headers are always _below_ items,
// and depth flows downward.
item.Depth = depth;
scrollableContent.Add(item);
switch (item.LoadState)
// if (!item.Item.Visible)
// {
// if (!item.IsPresent)
// notVisibleCount++;
// continue;
// }
// Only add if we're not already part of the content.
/*
if (!scrollableContent.Contains(item))
{
case LoadState.NotLoaded:
LoadComponentAsync(item);
break;
// Makes sure headers are always _below_ items,
// and depth flows downward.
item.Depth = depth;
case LoadState.Loading:
break;
switch (item.LoadState)
{
case LoadState.NotLoaded:
LoadComponentAsync(item);
break;
default:
scrollableContent.Add(item);
break;
case LoadState.Loading:
break;
default:
scrollableContent.Add(item);
break;
}
}
}
else
{
scrollableContent.ChangeChildDepth(item, depth);
else
{
scrollableContent.ChangeChildDepth(item, depth);
}
*/
}
}
// this is not actually useful right now, but once we have groups may well be.
if (notVisibleCount > 50)
itemsCache.Invalidate();
// Update externally controlled state of currently visible items
// (e.g. x-offset and opacity).
foreach (DrawableCarouselItem p in scrollableContent.Children)
{
updateItem(p);
// foreach (var pChild in p.ChildItems)
// updateItem(pChild, p);
}
}
protected override void UpdateAfterChildren()
@ -633,15 +638,6 @@ namespace osu.Game.Screens.Select
updateScrollPosition();
}
protected override void Dispose(bool isDisposing)
{
base.Dispose(isDisposing);
// aggressively dispose "off-screen" items to reduce GC pressure.
foreach (var i in Items)
i.Dispose();
}
private void beatmapRemoved(ValueChangedEvent<WeakReference<BeatmapSetInfo>> weakItem)
{
if (weakItem.NewValue.TryGetTarget(out var item))
@ -704,69 +700,39 @@ namespace osu.Game.Screens.Select
/// <returns>The Y position of the currently selected item.</returns>
private void updateItems()
{
Items = root.Drawables.ToList();
yPositions.Clear();
visibleItems.Clear();
float currentY = visibleHalfHeight;
DrawableCarouselBeatmapSet lastSet = null;
scrollTarget = null;
foreach (DrawableCarouselItem d in Items)
foreach (CarouselItem item in root.Children)
{
if (d.IsPresent)
if (item.Filtered.Value)
continue;
switch (item)
{
switch (d)
case CarouselBeatmapSet set:
{
case DrawableCarouselBeatmapSet set:
{
lastSet = set;
visibleItems.Add(set);
yPositions.Add(currentY);
//lastSet = set;
set.MoveToX(set.Item.State.Value == CarouselItemState.Selected ? -100 : 0, 500, Easing.OutExpo);
set.MoveToY(currentY, 750, Easing.OutExpo);
break;
}
case DrawableCarouselBeatmap beatmap:
{
if (beatmap.Item.State.Value == CarouselItemState.Selected)
// scroll position at currentY makes the set panel appear at the very top of the carousel's screen space
// move down by half of visible height (height of the carousel's visible extent, including semi-transparent areas)
// then reapply the top semi-transparent area (because carousel's screen space starts below it)
// and finally add half of the panel's own height to achieve vertical centering of the panel itself
scrollTarget = currentY - visibleHalfHeight + BleedTop + beatmap.DrawHeight / 2;
void performMove(float y, float? startY = null)
{
if (startY != null) beatmap.MoveTo(new Vector2(0, startY.Value));
beatmap.MoveToX(beatmap.Item.State.Value == CarouselItemState.Selected ? -50 : 0, 500, Easing.OutExpo);
beatmap.MoveToY(y, 750, Easing.OutExpo);
}
Debug.Assert(lastSet != null);
float? setY = null;
if (!d.IsLoaded || beatmap.Alpha == 0) // can't use IsPresent due to DrawableCarouselItem override.
setY = lastSet.Y + lastSet.DrawHeight + 5;
if (d.IsLoaded)
performMove(currentY, setY);
else
{
float y = currentY;
d.OnLoadComplete += _ => performMove(y, setY);
}
break;
}
// TODO: move this logic to DCBS too.
// set.MoveToX(set.Item.State.Value == CarouselItemState.Selected ? -100 : 0, 500, Easing.OutExpo);
// set.MoveToY(currentY, 750, Easing.OutExpo);
currentY += set.TotalHeight;
break;
}
default:
continue;
//
// break;
// }
}
yPositions.Add(currentY);
if (d.Item.Visible)
currentY += d.DrawHeight + 5;
}
currentY += visibleHalfHeight;
@ -869,6 +835,7 @@ namespace osu.Game.Screens.Select
/// </summary>
public bool UserScrolling { get; private set; }
// ReSharper disable once OptionalParameterHierarchyMismatch fuck off rider
protected override void OnUserScroll(float value, bool animated = true, double? distanceDecay = default)
{
UserScrolling = true;

2
osu.Game/Screens/Select/Carousel/CarouselBeatmap.cs
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@ -10,6 +10,8 @@ namespace osu.Game.Screens.Select.Carousel
{
public class CarouselBeatmap : CarouselItem
{
public override float TotalHeight => DrawableCarouselBeatmap.HEIGHT;
public readonly BeatmapInfo Beatmap;
public CarouselBeatmap(BeatmapInfo beatmap)

15
osu.Game/Screens/Select/Carousel/CarouselBeatmapSet.cs
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@ -12,7 +12,20 @@ namespace osu.Game.Screens.Select.Carousel
{
public class CarouselBeatmapSet : CarouselGroupEagerSelect
{
public float TotalHeight => DrawableCarouselBeatmapSet.HEIGHT + BeatmapSet.Beatmaps.Count * DrawableCarouselBeatmap.HEIGHT;
public override float TotalHeight
{
get
{
switch (State.Value)
{
case CarouselItemState.Selected:
return DrawableCarouselBeatmapSet.HEIGHT + Children.Count * DrawableCarouselBeatmap.HEIGHT;
default:
return DrawableCarouselBeatmapSet.HEIGHT;
}
}
}
public IEnumerable<CarouselBeatmap> Beatmaps => InternalChildren.OfType<CarouselBeatmap>();

2
osu.Game/Screens/Select/Carousel/CarouselItem.cs
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@ -7,6 +7,8 @@ namespace osu.Game.Screens.Select.Carousel
{
public abstract class CarouselItem
{
public virtual float TotalHeight => 0;
public readonly BindableBool Filtered = new BindableBool();
public readonly Bindable<CarouselItemState> State = new Bindable<CarouselItemState>(CarouselItemState.NotSelected);

6
osu.Game/Screens/Select/Carousel/DrawableCarouselBeatmap.cs
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@ -31,7 +31,7 @@ namespace osu.Game.Screens.Select.Carousel
{
public class DrawableCarouselBeatmap : DrawableCarouselItem, IHasContextMenu
{
public const float HEIGHT = MAX_HEIGHT;
public const float HEIGHT = MAX_HEIGHT * 0.6f;
private readonly BeatmapInfo beatmap;
@ -63,7 +63,7 @@ namespace osu.Game.Screens.Select.Carousel
: base(panel)
{
beatmap = panel.Beatmap;
Height *= 0.60f;
Height = HEIGHT;
}
[BackgroundDependencyLoader(true)]
@ -170,6 +170,8 @@ namespace osu.Game.Screens.Select.Carousel
{
base.Selected();
BorderContainer.MoveToX(Item.State.Value == CarouselItemState.Selected ? -50 : 0, 500, Easing.OutExpo);
background.Colour = ColourInfo.GradientVertical(
new Color4(20, 43, 51, 255),
new Color4(40, 86, 102, 255));

43
osu.Game/Screens/Select/Carousel/DrawableCarouselBeatmapSet.cs
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@ -43,8 +43,13 @@ namespace osu.Game.Screens.Select.Carousel
[Resolved(CanBeNull = true)]
private ManageCollectionsDialog manageCollectionsDialog { get; set; }
public override IEnumerable<DrawableCarouselItem> ChildItems => beatmapContainer?.Children ?? base.ChildItems;
private readonly BeatmapSetInfo beatmapSet;
private Container<DrawableCarouselBeatmap> beatmapContainer;
private Bindable<CarouselItemState> beatmapSetState;
public DrawableCarouselBeatmapSet(CarouselBeatmapSet set)
: base(set)
{
@ -119,6 +124,44 @@ namespace osu.Game.Screens.Select.Carousel
}
}
};
// TODO: temporary. we probably want to *not* inherit DrawableCarouselItem for this class, but only the above header portion.
AddRangeInternal(new Drawable[]
{
beatmapContainer = new Container<DrawableCarouselBeatmap>
{
X = 50,
Y = MAX_HEIGHT,
RelativeSizeAxes = Axes.X,
AutoSizeAxes = Axes.Y,
},
});
beatmapSetState = Item.State.GetBoundCopy();
beatmapSetState.BindValueChanged(setSelected, true);
}
private void setSelected(ValueChangedEvent<CarouselItemState> obj)
{
switch (obj.NewValue)
{
default:
beatmapContainer.Clear();
break;
case CarouselItemState.Selected:
float yPos = 0;
foreach (var item in ((CarouselBeatmapSet)Item).Beatmaps.Select(b => b.CreateDrawableRepresentation()).OfType<DrawableCarouselBeatmap>())
{
item.Y = yPos;
beatmapContainer.Add(item);
yPos += item.Item.TotalHeight;
}
break;
}
}
private const int maximum_difficulty_icons = 18;

35
osu.Game/Screens/Select/Carousel/DrawableCarouselItem.cs
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@ -1,6 +1,8 @@
// 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.Collections.Generic;
using System.Linq;
using osu.Framework.Allocation;
using osu.Framework.Audio;
using osu.Framework.Audio.Sample;
@ -27,10 +29,13 @@ namespace osu.Game.Screens.Select.Carousel
public readonly CarouselItem Item;
private Container nestedContainer;
private Container borderContainer;
public virtual IEnumerable<DrawableCarouselItem> ChildItems => Enumerable.Empty<DrawableCarouselItem>();
private Box hoverLayer;
private readonly Container nestedContainer;
protected readonly Container BorderContainer;
private readonly Box hoverLayer;
protected override Container<Drawable> Content => nestedContainer;
@ -41,14 +46,8 @@ namespace osu.Game.Screens.Select.Carousel
Height = MAX_HEIGHT;
RelativeSizeAxes = Axes.X;
Alpha = 0;
}
private SampleChannel sampleHover;
[BackgroundDependencyLoader]
private void load(AudioManager audio, OsuColour colours)
{
InternalChild = borderContainer = new Container
InternalChild = BorderContainer = new Container
{
RelativeSizeAxes = Axes.Both,
Masking = true,
@ -68,7 +67,13 @@ namespace osu.Game.Screens.Select.Carousel
},
}
};
}
private SampleChannel sampleHover;
[BackgroundDependencyLoader]
private void load(AudioManager audio, OsuColour colours)
{
sampleHover = audio.Samples.Get($@"SongSelect/song-ping-variation-{RNG.Next(1, 5)}");
hoverLayer.Colour = colours.Blue.Opacity(0.1f);
}
@ -87,7 +92,7 @@ namespace osu.Game.Screens.Select.Carousel
base.OnHoverLost(e);
}
public void SetMultiplicativeAlpha(float alpha) => borderContainer.Alpha = alpha;
public void SetMultiplicativeAlpha(float alpha) => BorderContainer.Alpha = alpha;
protected override void LoadComplete()
{
@ -123,8 +128,8 @@ namespace osu.Game.Screens.Select.Carousel
{
Item.State.Value = CarouselItemState.Selected;
borderContainer.BorderThickness = 2.5f;
borderContainer.EdgeEffect = new EdgeEffectParameters
BorderContainer.BorderThickness = 2.5f;
BorderContainer.EdgeEffect = new EdgeEffectParameters
{
Type = EdgeEffectType.Glow,
Colour = new Color4(130, 204, 255, 150),
@ -137,8 +142,8 @@ namespace osu.Game.Screens.Select.Carousel
{
Item.State.Value = CarouselItemState.NotSelected;
borderContainer.BorderThickness = 0;
borderContainer.EdgeEffect = new EdgeEffectParameters
BorderContainer.BorderThickness = 0;
BorderContainer.EdgeEffect = new EdgeEffectParameters
{
Type = EdgeEffectType.Shadow,
Offset = new Vector2(1),