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osu-lazer/osu.Game.Tests/Visual/Gameplay/TestSceneBezierConverter.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.
using System.Collections.Generic;
using System.Linq;
using NUnit.Framework;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Lines;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Objects.Types;
using osuTK;
namespace osu.Game.Tests.Visual.Gameplay
{
public partial class TestSceneBezierConverter : OsuTestScene
{
private readonly SmoothPath drawablePath;
private readonly SmoothPath controlPointDrawablePath;
private readonly SmoothPath convertedDrawablePath;
private readonly SmoothPath convertedControlPointDrawablePath;
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private SliderPath path = null!;
private SliderPath convertedPath = null!;
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public TestSceneBezierConverter()
{
Children = new Drawable[]
{
new Container
{
Children =
new Drawable[]
{
drawablePath = new SmoothPath(),
controlPointDrawablePath = new SmoothPath
{
Colour = Colour4.Magenta,
PathRadius = 1f
}
},
Position = new Vector2(100)
},
new Container
{
Children =
new Drawable[]
{
convertedDrawablePath = new SmoothPath(),
convertedControlPointDrawablePath = new SmoothPath
{
Colour = Colour4.Magenta,
PathRadius = 1f
}
},
Position = new Vector2(100, 300)
}
};
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resetPath();
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}
[SetUp]
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public void Setup() => Schedule(resetPath);
private void resetPath()
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{
path = new SliderPath();
convertedPath = new SliderPath();
path.Version.ValueChanged += getConvertedControlPoints;
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}
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private void getConvertedControlPoints(ValueChangedEvent<int> obj)
{
convertedPath.ControlPoints.Clear();
convertedPath.ControlPoints.AddRange(BezierConverter.ConvertToModernBezier(path.ControlPoints));
}
protected override void Update()
{
base.Update();
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List<Vector2> vertices = new List<Vector2>();
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path.GetPathToProgress(vertices, 0, 1);
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drawablePath.Vertices = vertices;
controlPointDrawablePath.Vertices = path.ControlPoints.Select(o => o.Position).ToList();
if (controlPointDrawablePath.Vertices.Count > 0)
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{
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controlPointDrawablePath.Position =
drawablePath.PositionInBoundingBox(drawablePath.Vertices[0]) - controlPointDrawablePath.PositionInBoundingBox(controlPointDrawablePath.Vertices[0]);
}
vertices.Clear();
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convertedPath.GetPathToProgress(vertices, 0, 1);
convertedDrawablePath.Vertices = vertices;
convertedControlPointDrawablePath.Vertices = convertedPath.ControlPoints.Select(o => o.Position).ToList();
if (convertedControlPointDrawablePath.Vertices.Count > 0)
{
convertedControlPointDrawablePath.Position = convertedDrawablePath.PositionInBoundingBox(convertedDrawablePath.Vertices[0])
- convertedControlPointDrawablePath.PositionInBoundingBox(convertedControlPointDrawablePath.Vertices[0]);
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}
}
[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)
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=> AddStep("create path", () => path.ControlPoints.AddRange(createSegment(new PathType { Type = splineType, Degree = degree }, Vector2.Zero, new Vector2(0, 100), new Vector2(100))));
[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)
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{
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));
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});
}
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[Test]
public void TestComplex()
{
AddStep("create path", () =>
{
path.ControlPoints.AddRange(createSegment(PathType.LINEAR, Vector2.Zero, new Vector2(100, 0)));
path.ControlPoints.AddRange(createSegment(PathType.BEZIER, new Vector2(100, 0), new Vector2(150, 30), new Vector2(100, 100)));
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path.ControlPoints.AddRange(createSegment(PathType.PERFECT_CURVE, new Vector2(100, 100), new Vector2(25, 50), Vector2.Zero));
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});
}
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[TestCase(0, 100)]
[TestCase(1, 100)]
[TestCase(5, 100)]
[TestCase(10, 100)]
[TestCase(30, 100)]
[TestCase(50, 100)]
[TestCase(100, 100)]
[TestCase(100, 1)]
public void TestPerfectCurveAngles(float height, float width)
{
AddStep("create path", () =>
{
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path.ControlPoints.AddRange(createSegment(PathType.PERFECT_CURVE, Vector2.Zero, new Vector2(width / 2, height), new Vector2(width, 0)));
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});
}
[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)));
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break;
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)));
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break;
}
});
}
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;
}
}
}