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Extract SliderPath reverse logic to be used in other rulesets

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This commit is contained in:
ekrctb 2021-07-22 16:14:43 +09:00
parent e8aaf4df16
commit cc01b9e639
2 changed files with 49 additions and 26 deletions
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28
osu.Game.Rulesets.Osu/Edit/OsuSelectionHandler.cs
View File

@ -76,32 +76,8 @@ namespace osu.Game.Rulesets.Osu.Edit
if (h is Slider slider)
{
var points = slider.Path.ControlPoints.ToArray();
Vector2 endPos = points.Last().Position.Value;
slider.Path.ControlPoints.Clear();
slider.Position += endPos;
PathType? lastType = null;
for (var i = 0; i < points.Length; i++)
{
var p = points[i];
p.Position.Value -= endPos;
// propagate types forwards to last null type
if (i == points.Length - 1)
p.Type.Value = lastType;
else if (p.Type.Value != null)
{
var newType = p.Type.Value;
p.Type.Value = lastType;
lastType = newType;
}
slider.Path.ControlPoints.Insert(0, p);
}
slider.Path.Reverse(out Vector2 offset);
slider.Position += offset;
}
}

47
osu.Game/Rulesets/Objects/SliderPathExtensions.cs Normal file
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@ -0,0 +1,47 @@
// 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.Linq;
using osu.Game.Rulesets.Objects.Types;
using osuTK;
#nullable enable
namespace osu.Game.Rulesets.Objects
{
public static class SliderPathExtensions
{
/// <summary>
/// Reverse the direction of this path.
/// </summary>
/// <param name="sliderPath">The <see cref="SliderPath"/>.</param>
/// <param name="positionalOffset">The positional offset of the resulting path. It should be added to the start position of this path.</param>
public static void Reverse(this SliderPath sliderPath, out Vector2 positionalOffset)
{
var points = sliderPath.ControlPoints.ToArray();
positionalOffset = points.Last().Position.Value;
sliderPath.ControlPoints.Clear();
PathType? lastType = null;
for (var i = 0; i < points.Length; i++)
{
var p = points[i];
p.Position.Value -= positionalOffset;
// propagate types forwards to last null type
if (i == points.Length - 1)
p.Type.Value = lastType;
else if (p.Type.Value != null)
{
var newType = p.Type.Value;
p.Type.Value = lastType;
lastType = newType;
}
sliderPath.ControlPoints.Insert(0, p);
}
}
}
}