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using Microsoft.Xna.Framework;
using Xunit;
namespace MonoGame.Extended.Tests.Primitives;
public class ShapeTests
{
public class CircleFTests
{
[Fact]
public void CircCircIntersectionSameCircleTest()
{
IShapeF shape1 = new CircleF(Point2.Zero, 2.0f);
IShapeF shape2 = new CircleF(Point2.Zero, 2.0f);
Assert.True(shape1.Intersects(shape2));
}
[Fact]
public void CircCircIntersectionOverlappingTest()
{
IShapeF shape1 = new CircleF(new Point2(1, 2), 2.0f);
IShapeF shape2 = new CircleF(Point2.Zero, 2.0f);
Assert.True(shape1.Intersects(shape2));
}
[Fact]
public void CircleCircleNotIntersectingTest()
{
IShapeF shape1 = new CircleF(new Point2(5, 5), 2.0f);
IShapeF shape2 = new CircleF(Point2.Zero, 2.0f);
Assert.False(shape1.Intersects(shape2));
}
}
public class RectangleFTests
{
[Fact]
public void RectRectSameRectTest()
{
IShapeF shape1 = new RectangleF(Point2.Zero, new Size2(5, 5));
IShapeF shape2 = new RectangleF(Point2.Zero, new Size2(5, 5));
Assert.True(shape1.Intersects(shape2));
}
[Fact]
public void RectRectIntersectingTest()
{
IShapeF shape1 = new RectangleF(Point2.Zero, new Size2(5, 5));
IShapeF shape2 = new RectangleF(new Point2(3, 3), new Size2(5, 5));
Assert.True(shape1.Intersects(shape2));
}
[Fact]
public void RectRectNotIntersectingTest()
{
IShapeF shape1 = new RectangleF(Point2.Zero, new Size2(5, 5));
IShapeF shape2 = new RectangleF(new Point2(10, 10), new Size2(5, 5));
Assert.False(shape1.Intersects(shape2));
}
[Fact]
public void RectCircContainedTest()
{
IShapeF shape1 = new RectangleF(Point2.Zero, new Size2(5, 5));
IShapeF shape2 = new CircleF(Point2.Zero, 4);
Assert.True(shape1.Intersects(shape2));
Assert.True(shape2.Intersects(shape1));
}
[Fact]
public void RectCircOnEdgeTest()
{
IShapeF shape1 = new RectangleF(Point2.Zero, new Size2(5, 5));
IShapeF shape2 = new CircleF(new Point2(5, 0), 4);
Assert.True(shape1.Intersects(shape2));
Assert.True(shape2.Intersects(shape1));
}
}
public class OrientedRectangleTests
{
[Fact]
public void Axis_aligned_rectangle_intersects_circle()
{
/*
* :
* :
* +*+
* ...........* *.........
* +*+
* :
* :
*/
IShapeF rectangle = new OrientedRectangle(Point2.Zero, new Size2(1, 1), Matrix2.Identity);
var circle = new CircleF(Point2.Zero, 1);
Assert.True(rectangle.Intersects(circle));
}
[Fact]
public void Axis_aligned_rectangle_does_not_intersect_circle_in_top_left()
{
/*
* * :
* * *:
* *+-+
* ...........| |.........
* +-+
* :
* :
*/
IShapeF rectangle = new OrientedRectangle(Point2.Zero, new Size2(1, 1), Matrix2.Identity);
var circle = new CircleF(new Point2(-2, 1), .99f);
Assert.False(rectangle.Intersects(circle));
}
[Fact]
public void Rectangle_rotated_45_degrees_does_not_intersect_circle_in_bottom_right()
{
/*
* :
* :
* +-.
* .........../ / ........
* +./* *
* * *
* :* *
*/
IShapeF rectangle = new OrientedRectangle(new Point2(-1, 1), new Size2(1.42f, 1.42f), Matrix2.CreateRotationZ(-MathHelper.PiOver4));
var circle = new CircleF(new Point2(1, -1), 1.4f);
Assert.False(rectangle.Intersects(circle));
}
[Fact]
public void Axis_aligned_rectangle_does_not_intersect_rectangle()
{
/*
* :
* :
* +-+
* ..........| |**.......
* +-+ *
* :**
* :
*/
IShapeF rectangle = new OrientedRectangle(new Point2(-1, 0), new Size2(1, 1), Matrix2.Identity);
var rect = new RectangleF(new Point2(0.001f, 0), new Size2(2, 2));
Assert.False(rectangle.Intersects(rect));
}
[Fact]
public void Axis_aligned_rectangle_intersects_rectangle()
{
/*
* :
* :
* +-+
* ..........| |**.......
* +-+ *
* :**
* :
*/
IShapeF rectangle = new OrientedRectangle(new Point2(-1, 0), new Size2(1, 1), Matrix2.Identity);
var rect = new RectangleF(new Point2(0, 0), new Size2(2, 2));
Assert.True(rectangle.Intersects(rect));
}
}
}
|
