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Code Issues Releases Wiki Activity

Fix editor crashing after re-ordering objects (#7250)

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Fix editor crashing after re-ordering objects
This commit is contained in:
Dean Herbert 2019-12-18 19:21:28 +09:00 committed by GitHub
commit e643f498ba
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 111 additions and 3 deletions
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75
osu.Game.Tests/Gameplay/TestSceneHitObjectContainer.cs Normal file
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@ -0,0 +1,75 @@
// 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 JetBrains.Annotations;
using NUnit.Framework;
using osu.Framework.Testing;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Objects.Drawables;
using osu.Game.Rulesets.UI;
using osu.Game.Tests.Visual;
namespace osu.Game.Tests.Gameplay
{
[HeadlessTest]
public class TestSceneHitObjectContainer : OsuTestScene
{
private HitObjectContainer container;
[SetUp]
public void Setup() => Schedule(() =>
{
Child = container = new HitObjectContainer();
});
[Test]
public void TestLateHitObjectIsAddedEarlierInList()
{
DrawableHitObject hitObject = null;
AddStep("setup", () => container.Add(new TestDrawableHitObject(new HitObject { StartTime = 500 })));
AddStep("add late hitobject", () => container.Add(hitObject = new TestDrawableHitObject(new HitObject { StartTime = 1000 })));
AddAssert("hitobject index is 0", () => container.IndexOf(hitObject) == 0);
}
[Test]
public void TestEarlyHitObjectIsAddedLaterInList()
{
DrawableHitObject hitObject = null;
AddStep("setup", () => container.Add(new TestDrawableHitObject(new HitObject { StartTime = 500 })));
AddStep("add early hitobject", () => container.Add(hitObject = new TestDrawableHitObject(new HitObject())));
AddAssert("hitobject index is 0", () => container.IndexOf(hitObject) == 1);
}
[Test]
public void TestHitObjectsResortedAfterStartTimeChange()
{
DrawableHitObject firstObject = null;
DrawableHitObject secondObject = null;
AddStep("setup", () =>
{
container.Add(firstObject = new TestDrawableHitObject(new HitObject()));
container.Add(secondObject = new TestDrawableHitObject(new HitObject { StartTime = 1000 }));
});
AddStep("move first object after second", () => firstObject.HitObject.StartTime = 2000);
AddAssert("first object index is 1", () => container.IndexOf(firstObject) == 0);
AddAssert("second object index is 0", () => container.IndexOf(secondObject) == 1);
}
private class TestDrawableHitObject : DrawableHitObject
{
public TestDrawableHitObject([NotNull] HitObject hitObject)
: base(hitObject)
{
}
}
}
}

39
osu.Game/Rulesets/UI/HitObjectContainer.cs
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@ -3,6 +3,7 @@
using System.Collections.Generic;
using System.Linq;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Rulesets.Objects.Drawables;
@ -14,13 +15,45 @@ namespace osu.Game.Rulesets.UI
public IEnumerable<DrawableHitObject> Objects => InternalChildren.Cast<DrawableHitObject>().OrderBy(h => h.HitObject.StartTime);
public IEnumerable<DrawableHitObject> AliveObjects => AliveInternalChildren.Cast<DrawableHitObject>().OrderBy(h => h.HitObject.StartTime);
private readonly Dictionary<DrawableHitObject, (IBindable<double> bindable, double timeAtAdd)> startTimeMap = new Dictionary<DrawableHitObject, (IBindable<double>, double)>();
public HitObjectContainer()
{
RelativeSizeAxes = Axes.Both;
}
public virtual void Add(DrawableHitObject hitObject) => AddInternal(hitObject);
public virtual bool Remove(DrawableHitObject hitObject) => RemoveInternal(hitObject);
public virtual void Add(DrawableHitObject hitObject)
{
// Added first for the comparer to remain ordered during AddInternal
startTimeMap[hitObject] = (hitObject.HitObject.StartTimeBindable.GetBoundCopy(), hitObject.HitObject.StartTime);
startTimeMap[hitObject].bindable.BindValueChanged(_ => onStartTimeChanged(hitObject));
AddInternal(hitObject);
}
public virtual bool Remove(DrawableHitObject hitObject)
{
if (!RemoveInternal(hitObject))
return false;
// Removed last for the comparer to remain ordered during RemoveInternal
startTimeMap[hitObject].bindable.UnbindAll();
startTimeMap.Remove(hitObject);
return true;
}
public int IndexOf(DrawableHitObject hitObject) => IndexOfInternal(hitObject);
private void onStartTimeChanged(DrawableHitObject hitObject)
{
if (!RemoveInternal(hitObject))
return;
// Update the stored time, preserving the existing bindable
startTimeMap[hitObject] = (startTimeMap[hitObject].bindable, hitObject.HitObject.StartTime);
AddInternal(hitObject);
}
protected override int Compare(Drawable x, Drawable y)
{
@ -28,7 +61,7 @@ namespace osu.Game.Rulesets.UI
return base.Compare(x, y);
// Put earlier hitobjects towards the end of the list, so they handle input first
int i = yObj.HitObject.StartTime.CompareTo(xObj.HitObject.StartTime);
int i = startTimeMap[yObj].timeAtAdd.CompareTo(startTimeMap[xObj].timeAtAdd);
return i == 0 ? CompareReverseChildID(x, y) : i;
}