protected Vector3D?IntersectExact(MyCubeGrid grid, ref MatrixD inverseGridWorldMatrix, out Vector3D intersection, out MySlimBlock intersectedBlock)
{
double num;
intersection = Vector3D.Zero;
LineD line = new LineD(IntersectionStart, IntersectionStart + (IntersectionDirection * IntersectionDistance));
Vector3D?nullable = grid.GetLineIntersectionExactAll(ref line, out num, out intersectedBlock);
if (nullable != null)
{
Vector3D vectord = Vector3D.Transform(IntersectionStart, (MatrixD)inverseGridWorldMatrix);
intersection = vectord + (num * Vector3D.Normalize(Vector3D.TransformNormal(IntersectionDirection, (MatrixD)inverseGridWorldMatrix)));
intersection *= 1f / grid.GridSize;
}
return(nullable);
}
/// <summary>
/// Calculates exact intersection point (in uniform grid coordinates) of eye ray with the given grid of all cubes.
/// Returns position of intersected object in uniform grid coordinates
/// </summary>
protected Vector3D?IntersectExact(MyCubeGrid grid, ref MatrixD inverseGridWorldMatrix, out Vector3D intersection, out MySlimBlock intersectedBlock)
{
intersection = Vector3D.Zero;
var line = new LineD(IntersectionStart, IntersectionStart + IntersectionDirection * IntersectionDistance);
double distance;
Vector3D?intersectedObjectPos = grid.GetLineIntersectionExactAll(ref line, out distance, out intersectedBlock);
if (intersectedObjectPos != null)
{
Vector3D rayStart = Vector3D.Transform(IntersectionStart, inverseGridWorldMatrix);
Vector3D rayDir = Vector3D.Normalize(Vector3D.TransformNormal(IntersectionDirection, inverseGridWorldMatrix));
intersection = rayStart + distance * rayDir;
intersection *= 1.0f / grid.GridSize;
}
return(intersectedObjectPos);
}
/// <summary>
/// Calculates exact intersection point (in uniform grid coordinates) of eye ray with the given grid of all cubes.
/// Returns position of intersected object in uniform grid coordinates
/// </summary>
protected Vector3D? IntersectExact(MyCubeGrid grid, ref MatrixD inverseGridWorldMatrix, out Vector3D intersection, out MySlimBlock intersectedBlock)
{
intersection = Vector3D.Zero;
var line = new LineD(IntersectionStart, IntersectionStart + IntersectionDirection * IntersectionDistance);
double distance;
Vector3D? intersectedObjectPos = grid.GetLineIntersectionExactAll(ref line, out distance, out intersectedBlock);
if (intersectedObjectPos != null)
{
Vector3D rayStart = Vector3D.Transform(IntersectionStart, inverseGridWorldMatrix);
Vector3D rayDir = Vector3D.Normalize(Vector3D.TransformNormal(IntersectionDirection, inverseGridWorldMatrix));
intersection = rayStart + distance * rayDir;
intersection *= 1.0f / grid.GridSize;
}
return intersectedObjectPos;
}
