public unsafe void IntersectsFuzz(int count)
{
var boxes = new BoxF[count];
var rng = RandomNumberGenerator.Create();
fixed(BoxF *pBoxes = &boxes[0])
rng.GetBytes(new Span <byte>(pBoxes, count * sizeof(BoxF)));
for (var i = 0; i < count; ++i)
{
boxes[i].Normalize();
}
for (var i = 0; i < count; ++i)
{
for (var j = 0; j < count; ++j)
{
Assert.AreEqual(
BoxF.IsIntersectingNaive(boxes[i], boxes[j]),
BoxF.IsIntersectingSse(boxes[i], boxes[j]),
$"Mismatch {boxes[i]} vs. {boxes[j]}"
);
}
}
}
public void IntersectsSanity()
{
Assert.True(BoxF.IsIntersectingNaive(Boxes1[1], Boxes1[0]));
Assert.True(BoxF.IsIntersectingNaive(Boxes2[0], Boxes2[1]));
Assert.True(BoxF.IsIntersectingNaive(Boxes1[0], Boxes1[1]));
Assert.True(BoxF.IsIntersectingNaive(Boxes2[1], Boxes2[0]));
for (var i = 0; i < 4; ++i)
{
Assert.True(BoxF.IsIntersectingNaive(Boxes2[0], Boxes2[3 + i]));
Assert.True(BoxF.IsIntersectingNaive(Boxes2[3 + i], Boxes2[0]));
}
for (var i = 0; i < 4; ++i)
{
Assert.False(BoxF.IsIntersectingNaive(Boxes2[1], Boxes2[3 + i]));
Assert.False(BoxF.IsIntersectingNaive(Boxes2[2], Boxes2[3 + i]));
}
}