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Merge branch 'master' into overlay-filter-rank

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NaiPofo 2022-08-01 21:54:44 +02:00 committed by GitHub
commit 3356909026
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2 changed files with 61 additions and 11 deletions
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53
osu.Game.Tests/Visual/SongSelect/TestSceneBeatmapCarousel.cs
View File

@ -486,9 +486,6 @@ namespace osu.Game.Tests.Visual.SongSelect
AddAssert("Something is selected", () => carousel.SelectedBeatmapInfo != null);
}
/// <summary>
/// Test sorting
/// </summary>
[Test]
public void TestSorting()
{
@ -517,6 +514,9 @@ namespace osu.Game.Tests.Visual.SongSelect
AddAssert($"Check {zzz_string} is at bottom", () => carousel.BeatmapSets.Last().Metadata.Artist == zzz_string);
}
/// <summary>
/// Ensures stability is maintained on different sort modes for items with equal properties.
/// </summary>
[Test]
public void TestSortingStability()
{
@ -549,6 +549,53 @@ namespace osu.Game.Tests.Visual.SongSelect
AddAssert("Items reset to original order", () => carousel.BeatmapSets.Select((set, index) => set.OnlineID == idOffset + index).All(b => b));
}
/// <summary>
/// Ensures stability is maintained on different sort modes while a new item is added to the carousel.
/// </summary>
[Test]
public void TestSortingStabilityWithNewItems()
{
List<BeatmapSetInfo> sets = new List<BeatmapSetInfo>();
for (int i = 0; i < 3; i++)
{
var set = TestResources.CreateTestBeatmapSetInfo(3);
// only need to set the first as they are a shared reference.
var beatmap = set.Beatmaps.First();
beatmap.Metadata.Artist = "same artist";
beatmap.Metadata.Title = "same title";
sets.Add(set);
}
int idOffset = sets.First().OnlineID;
loadBeatmaps(sets);
AddStep("Sort by artist", () => carousel.Filter(new FilterCriteria { Sort = SortMode.Artist }, false));
AddAssert("Items remain in original order", () => carousel.BeatmapSets.Select((set, index) => set.OnlineID == idOffset + index).All(b => b));
AddStep("Add new item", () =>
{
var set = TestResources.CreateTestBeatmapSetInfo();
// only need to set the first as they are a shared reference.
var beatmap = set.Beatmaps.First();
beatmap.Metadata.Artist = "same artist";
beatmap.Metadata.Title = "same title";
carousel.UpdateBeatmapSet(set);
});
AddAssert("Items remain in original order", () => carousel.BeatmapSets.Select((set, index) => set.OnlineID == idOffset + index).All(b => b));
AddStep("Sort by title", () => carousel.Filter(new FilterCriteria { Sort = SortMode.Title }, false));
AddAssert("Items remain in original order", () => carousel.BeatmapSets.Select((set, index) => set.OnlineID == idOffset + index).All(b => b));
}
[Test]
public void TestSortingWithFiltered()
{

19
osu.Game/Screens/Select/Carousel/CarouselGroup.cs
View File

@ -2,7 +2,6 @@
// See the LICENCE file in the repository root for full licence text.
using System.Collections.Generic;
using System.Linq;
namespace osu.Game.Screens.Select.Carousel
{
@ -15,7 +14,7 @@ namespace osu.Game.Screens.Select.Carousel
public IReadOnlyList<CarouselItem> Items => items;
private List<CarouselItem> items = new List<CarouselItem>();
private readonly List<CarouselItem> items = new List<CarouselItem>();
/// <summary>
/// Used to assign a monotonically increasing ID to items as they are added. This member is
@ -24,9 +23,6 @@ namespace osu.Game.Screens.Select.Carousel
private ulong currentItemID;
private Comparer<CarouselItem>? criteriaComparer;
private static readonly Comparer<CarouselItem> item_id_comparer = Comparer<CarouselItem>.Create((x, y) => x.ItemID.CompareTo(y.ItemID));
private FilterCriteria? lastCriteria;
protected int GetIndexOfItem(CarouselItem lastSelected) => items.IndexOf(lastSelected);
@ -90,9 +86,16 @@ namespace osu.Game.Screens.Select.Carousel
items.ForEach(c => c.Filter(criteria));
// IEnumerable<T>.OrderBy() is used instead of List<T>.Sort() to ensure sorting stability
criteriaComparer = Comparer<CarouselItem>.Create((x, y) => x.CompareTo(criteria, y));
items = items.OrderBy(c => c, criteriaComparer).ThenBy(c => c, item_id_comparer).ToList();
criteriaComparer = Comparer<CarouselItem>.Create((x, y) =>
{
int comparison = x.CompareTo(criteria, y);
if (comparison != 0)
return comparison;
return x.ItemID.CompareTo(y.ItemID);
});
items.Sort(criteriaComparer);
lastCriteria = criteria;
}