public static BoxPlaneClassificationResult ClassifyBox(this Plane plane, Box box)
{
List <Vector3> boxCenterAndCornerPoints = box.GetCenterAndCornerPoints();
bool foundPointInFront = false;
bool foundPointBehind = false;
bool foundPointOnPlane = false;
foreach (Vector3 boxPoint in boxCenterAndCornerPoints)
{
PointPlaneClassificationResult pointClassificationResult = plane.ClassifyPoint(boxPoint);
if (pointClassificationResult == PointPlaneClassificationResult.InFront)
{
foundPointInFront = true;
if (foundPointBehind)
{
return(BoxPlaneClassificationResult.Spanning);
}
}
else
if (pointClassificationResult == PointPlaneClassificationResult.Behind)
{
foundPointBehind = true;
if (foundPointInFront)
{
return(BoxPlaneClassificationResult.Spanning);
}
}
else
{
foundPointOnPlane = true;
}
}
if (foundPointOnPlane && (!foundPointInFront && !foundPointBehind))
{
return(BoxPlaneClassificationResult.OnPlane);
}
else
{
if (foundPointInFront)
{
return(BoxPlaneClassificationResult.InFront);
}
return(BoxPlaneClassificationResult.Behind);
}
}
public List <Vector3> GetCenterAndCornerPoints()
{
List <Vector3> points = _modelSpaceBox.GetCenterAndCornerPoints();
return(Vector3Extensions.GetTransformedPoints(points, TransformMatrix.ToMatrix4x4x));
}
