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osu-lazer/osu.Game.Tests/Visual/Gameplay/TestSceneSliderPath.cs

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// 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.
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#nullable disable
using System.Collections.Generic;
using System.Linq;
using NUnit.Framework;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Lines;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Objects.Types;
using osuTK;
namespace osu.Game.Tests.Visual.Gameplay
{
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public partial class TestSceneSliderPath : OsuTestScene
{
private readonly SmoothPath drawablePath;
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private SliderPath path;
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public TestSceneSliderPath()
{
Child = drawablePath = new SmoothPath
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre
};
}
[SetUp]
public void Setup() => Schedule(() =>
{
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path = new SliderPath();
});
protected override void Update()
{
base.Update();
if (path != null)
{
List<Vector2> vertices = new List<Vector2>();
path.GetPathToProgress(vertices, 0, 1);
drawablePath.Vertices = vertices;
}
}
[Test]
public void TestEmptyPath()
{
}
[TestCase(SplineType.Linear, null)]
[TestCase(SplineType.BSpline, null)]
[TestCase(SplineType.BSpline, 3)]
[TestCase(SplineType.Catmull, null)]
[TestCase(SplineType.PerfectCurve, null)]
public void TestSingleSegment(SplineType splineType, int? degree)
=> AddStep("create path", () => path.ControlPoints.AddRange(createSegment(
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new PathType { Type = splineType, Degree = degree },
Vector2.Zero,
new Vector2(0, 100),
new Vector2(100),
new Vector2(0, 200),
new Vector2(200)
)));
[TestCase(SplineType.Linear, null)]
[TestCase(SplineType.BSpline, null)]
[TestCase(SplineType.BSpline, 3)]
[TestCase(SplineType.Catmull, null)]
[TestCase(SplineType.PerfectCurve, null)]
public void TestMultipleSegment(SplineType splineType, int? degree)
{
AddStep("create path", () =>
{
path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero));
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path.ControlPoints.AddRange(createSegment(new PathType { Type = splineType, Degree = degree }, new Vector2(0, 100), new Vector2(100), Vector2.Zero));
});
}
[Test]
public void TestAddControlPoint()
{
AddStep("create path", () => path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(0, 100))));
AddStep("add point", () => path.ControlPoints.Add(new PathControlPoint { Position = new Vector2(100) }));
}
[Test]
public void TestInsertControlPoint()
{
AddStep("create path", () => path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(100))));
AddStep("insert point", () => path.ControlPoints.Insert(1, new PathControlPoint { Position = new Vector2(0, 100) }));
}
[Test]
public void TestRemoveControlPoint()
{
AddStep("create path", () => path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(0, 100), new Vector2(100))));
AddStep("remove second point", () => path.ControlPoints.RemoveAt(1));
}
[Test]
public void TestChangePathType()
{
AddStep("create path", () => path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(0, 100), new Vector2(100))));
AddStep("change type to bezier", () => path.ControlPoints[0].Type = PathType.BEZIER);
}
[Test]
public void TestAddSegmentByChangingType()
{
AddStep("create path", () => path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(0, 100), new Vector2(100), new Vector2(100, 0))));
AddStep("change second point type to bezier", () => path.ControlPoints[1].Type = PathType.BEZIER);
}
[Test]
public void TestRemoveSegmentByChangingType()
{
AddStep("create path", () =>
{
path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(0, 100), new Vector2(100), new Vector2(100, 0)));
path.ControlPoints[1].Type = PathType.BEZIER;
});
AddStep("change second point type to null", () => path.ControlPoints[1].Type = null);
}
[Test]
public void TestRemoveSegmentByRemovingControlPoint()
{
AddStep("create path", () =>
{
path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(0, 100), new Vector2(100), new Vector2(100, 0)));
path.ControlPoints[1].Type = PathType.BEZIER;
});
AddStep("remove second point", () => path.ControlPoints.RemoveAt(1));
}
[TestCase(2)]
[TestCase(4)]
public void TestPerfectCurveFallbackScenarios(int points)
{
AddStep("create path", () =>
{
switch (points)
{
case 2:
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path.ControlPoints.AddRange(createSegment(PathType.PERFECT_CURVE, Vector2.Zero, new Vector2(0, 100)));
break;
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case 4:
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path.ControlPoints.AddRange(createSegment(PathType.PERFECT_CURVE, Vector2.Zero, new Vector2(0, 100), new Vector2(100), new Vector2(100, 0)));
break;
}
});
}
[Test]
public void TestLengthenLastSegment()
{
AddStep("create path", () => path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(0, 100), new Vector2(100))));
AddStep("lengthen last segment", () => path.ExpectedDistance.Value = 300);
}
[Test]
public void TestShortenLastSegment()
{
AddStep("create path", () => path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(0, 100), new Vector2(100))));
AddStep("shorten last segment", () => path.ExpectedDistance.Value = 150);
}
[Test]
public void TestShortenFirstSegment()
{
AddStep("create path", () => path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(0, 100), new Vector2(100))));
AddStep("shorten first segment", () => path.ExpectedDistance.Value = 50);
}
[Test]
public void TestShortenToZeroLength()
{
AddStep("create path", () => path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(0, 100), new Vector2(100))));
AddStep("shorten to 0 length", () => path.ExpectedDistance.Value = 0);
}
[Test]
public void TestShortenToNegativeLength()
{
AddStep("create path", () => path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(0, 100), new Vector2(100))));
AddStep("shorten to -10 length", () => path.ExpectedDistance.Value = -10);
}
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[Test]
public void TestGetSegmentEnds()
{
var positions = new[]
{
Vector2.Zero,
new Vector2(100, 0),
new Vector2(100),
new Vector2(200, 100),
};
double[] distances = { 100d, 200d, 300d };
AddStep("create path", () => path.ControlPoints.AddRange(positions.Select(p => new PathControlPoint(p, PathType.LINEAR))));
AddAssert("segment ends are correct", () => path.GetSegmentEnds(), () => Is.EqualTo(distances.Select(d => d / 300)));
AddAssert("segment end positions recovered", () => path.GetSegmentEnds().Select(p => path.PositionAt(p)), () => Is.EqualTo(positions.Skip(1)));
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AddStep("lengthen last segment", () => path.ExpectedDistance.Value = 400);
AddAssert("segment ends are correct", () => path.GetSegmentEnds(), () => Is.EqualTo(distances.Select(d => d / 400)));
AddAssert("segment end positions recovered", () => path.GetSegmentEnds().Select(p => path.PositionAt(p)), () => Is.EqualTo(positions.Skip(1)));
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AddStep("shorten last segment", () => path.ExpectedDistance.Value = 150);
AddAssert("segment ends are correct", () => path.GetSegmentEnds(), () => Is.EqualTo(distances.Select(d => d / 150)));
// see remarks in `GetSegmentEnds()` xmldoc (`SliderPath.PositionAt()` clamps progress to [0,1]).
AddAssert("segment end positions not recovered", () => path.GetSegmentEnds().Select(p => path.PositionAt(p)), () => Is.EqualTo(new[]
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{
positions[1],
new Vector2(100, 50),
new Vector2(100, 50),
}));
}
private List<PathControlPoint> createSegment(PathType type, params Vector2[] controlPoints)
{
var points = controlPoints.Select(p => new PathControlPoint { Position = p }).ToList();
points[0].Type = type;
return points;
}
}
}