public Vector3k IntersectionDist(BoundingCylinder b)
{
Vector3k dist = new Vector3k(this.X - b.X, this.Y - b.Y, Accum.Zero);
dist.Z = IntersectionDistZ(b);
return(dist);
}
public Accum IntersectionDistZ(BoundingCylinder b)
{
if (this.Z >= b.Z) // If the bottom of this bounding cylinder is inside b.
{
return(b.Top - this.Z);
}
else if (this.Top <= b.Top) // Or if the top is inside b.
{
return(-(b.Z - this.Top));
}
return(Accum.Zero); // This shouldn't really happen.
}
/// <summary>
/// Checks for intersection with a bounding cylinder.
/// </summary>
/// <param name="b">The bounding cylinder to check for intersection with.</param>
/// <returns>Returns a boolean indicating whether an intersection happened.</returns>
public bool Intersects(BoundingCylinder b)
{
return(IntersectsXY(b) || IntersectsZ(b));
}
/// <summary>
/// Checks for intersection with a bounding cylinder in the Z axis.
/// </summary>
/// <param name="b">The bounding cylinder to check for intersection with.</param>
/// <returns>Returns a boolean indicating whether an intersection happened.</returns>
public bool IntersectsZ(BoundingCylinder b)
{
return(MathUtils.IsBetween(this.Z, b.Z, b.Top) || MathUtils.IsBetween(this.Top, b.Z, b.Top));
}
/// <summary>
/// Checks for intersection with a bounding cylinder in the XY axes.
/// </summary>
/// <param name="b">The bounding cylinder to check for intersection with.</param>
/// <returns>Returns a boolean indicating whether an intersection happened.</returns>
public bool IntersectsXY(BoundingCylinder b)
{
return(FixedMath.Abs(IntersectionDistXY(b).LengthSquared) < FixedMath.Square(this.Radius + b.Radius));
}
public Vector3k IntersectionDistXY(BoundingCylinder b)
{
return(new Vector3k(this.X - b.X, this.Y - b.Y, Accum.Zero));
}