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Code Issues Releases Wiki Activity

Fix mods sharing bindable instances

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This commit is contained in:
smoogipoo 2020-08-13 19:48:31 +09:00
parent 1c771471d5
commit 3cb22fad82
2 changed files with 40 additions and 1 deletions
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20
osu.Game.Tests/Visual/UserInterface/TestSceneModSettings.cs
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@ -8,6 +8,7 @@ using NUnit.Framework;
using osu.Framework.Bindables; using osu.Framework.Bindables;
using osu.Framework.Graphics; using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers; using osu.Framework.Graphics.Containers;
using osu.Framework.Utils;
using osu.Game.Beatmaps; using osu.Game.Beatmaps;
using osu.Game.Configuration; using osu.Game.Configuration;
using osu.Game.Graphics.UserInterface; using osu.Game.Graphics.UserInterface;
@ -15,6 +16,7 @@ using osu.Game.Overlays.Mods;
using osu.Game.Rulesets; using osu.Game.Rulesets;
using osu.Game.Rulesets.Difficulty; using osu.Game.Rulesets.Difficulty;
using osu.Game.Rulesets.Mods; using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Osu.Mods;
using osu.Game.Rulesets.UI; using osu.Game.Rulesets.UI;
namespace osu.Game.Tests.Visual.UserInterface namespace osu.Game.Tests.Visual.UserInterface
@ -75,6 +77,24 @@ namespace osu.Game.Tests.Visual.UserInterface
AddAssert("Customisation closed", () => modSelect.ModSettingsContainer.Alpha == 0); AddAssert("Customisation closed", () => modSelect.ModSettingsContainer.Alpha == 0);
} }
[Test]
public void TestModSettingsUnboundWhenCopied()
{
OsuModDoubleTime original = null;
OsuModDoubleTime copy = null;
AddStep("create mods", () =>
{
original = new OsuModDoubleTime();
copy = (OsuModDoubleTime)original.CreateCopy();
});
AddStep("change property", () => original.SpeedChange.Value = 2);
AddAssert("original has new value", () => Precision.AlmostEquals(2.0, original.SpeedChange.Value));
AddAssert("copy has original value", () => Precision.AlmostEquals(1.5, copy.SpeedChange.Value));
}
private void createModSelect() private void createModSelect()
{ {
AddStep("create mod select", () => AddStep("create mod select", () =>

21
osu.Game/Rulesets/Mods/Mod.cs
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@ -3,6 +3,7 @@
using System; using System;
using System.Collections.Generic; using System.Collections.Generic;
using System.Diagnostics;
using System.Linq; using System.Linq;
using System.Reflection; using System.Reflection;
using Newtonsoft.Json; using Newtonsoft.Json;
@ -126,7 +127,25 @@ namespace osu.Game.Rulesets.Mods
/// <summary> /// <summary>
/// Creates a copy of this <see cref="Mod"/> initialised to a default state. /// Creates a copy of this <see cref="Mod"/> initialised to a default state.
/// </summary> /// </summary>
public virtual Mod CreateCopy() => (Mod)MemberwiseClone(); public virtual Mod CreateCopy()
{
var copy = (Mod)Activator.CreateInstance(GetType());
// Copy bindable values across
foreach (var (_, prop) in this.GetSettingsSourceProperties())
{
var origBindable = prop.GetValue(this);
var copyBindable = prop.GetValue(copy);
// The bindables themselves are readonly, so the value must be transferred through the Bindable<T>.Value property.
var valueProperty = origBindable.GetType().GetProperty(nameof(Bindable<object>.Value), BindingFlags.Public | BindingFlags.Instance);
Debug.Assert(valueProperty != null);
valueProperty.SetValue(copyBindable, valueProperty.GetValue(origBindable));
}
return copy;
}
public bool Equals(IMod other) => GetType() == other?.GetType(); public bool Equals(IMod other) => GetType() == other?.GetType();
} }