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using Microsoft.Xna.Framework;
using MonoGame.Extended.Shapes;
using Xunit;
namespace MonoGame.Extended.Tests.Shapes
{
public class PolygonFTests
{
[Fact]
public void Polygon_Contains_Point_Test()
{
var vertices = new[]
{
new Vector2(0, 0),
new Vector2(10, 0),
new Vector2(10, 10),
new Vector2(0, 10)
};
var polygon = new Polygon(vertices);
Assert.True(polygon.Contains(new Vector2(5, 5)));
Assert.True(polygon.Contains(new Vector2(0.01f, 0.01f)));
Assert.True(polygon.Contains(new Vector2(9.99f, 9.99f)));
Assert.False(polygon.Contains(new Vector2(-1f, -1f)));
Assert.False(polygon.Contains(new Vector2(-11f, -11f)));
}
[Fact]
public void Polygon_Transform_Translation_Test()
{
var vertices = new[]
{
new Vector2(0, 0),
new Vector2(10, 0),
new Vector2(10, 10),
new Vector2(0, 10)
};
var polygon = new Polygon(vertices);
polygon.Offset(new Vector2(2, 3));
Assert.Equal(new Vector2(2, 3), polygon.Vertices[0]);
Assert.Equal(new Vector2(12, 3), polygon.Vertices[1]);
Assert.Equal(new Vector2(12, 13), polygon.Vertices[2]);
Assert.Equal(new Vector2(2, 13), polygon.Vertices[3]);
}
[Fact]
public void Polygon_Transform_Rotation_Test()
{
var vertices = new[]
{
new Vector2(-5, -5),
new Vector2(5, 10),
new Vector2(-5, 10)
};
var polygon = new Polygon(vertices);
polygon.Rotate(MathHelper.ToRadians(90));
const float tolerance = 0.01f;
Assert.True(new Vector2(5, -5).EqualsWithTolerence(polygon.Vertices[0], tolerance));
Assert.True(new Vector2(-10, 5).EqualsWithTolerence(polygon.Vertices[1], tolerance));
Assert.True(new Vector2(-10, -5).EqualsWithTolerence(polygon.Vertices[2], tolerance));
}
[Fact]
public void Polygon_Transform_Scale_Test()
{
var vertices = new[]
{
new Vector2(0, -1),
new Vector2(1, 1),
new Vector2(-1, 1)
};
var polygon = new Polygon(vertices);
polygon.Scale(new Vector2(1, -0.5f));
const float tolerance = 0.01f;
Assert.True(new Vector2(0, -0.5f).EqualsWithTolerence(polygon.Vertices[0], tolerance), "0");
Assert.True(new Vector2(2f, 0.5f).EqualsWithTolerence(polygon.Vertices[1], tolerance), "1");
Assert.True(new Vector2(-2f, 0.5f).EqualsWithTolerence(polygon.Vertices[2], tolerance), "2");
}
}
}
|
