/// <summary>
/// Calculate the difference between two ranges, i.e. X - Y.
/// </summary>
/// <param name="x">The first range to subtract from.</param>
/// <param name="y">The second range to subtract with.</param>
/// <returns>Between 0 and 2 remaining ranges.</returns>
public static FInt32Range[] Difference(FInt32Range x, FInt32Range y)
{
if (x.Overlaps(y))
{
FInt32Range lowerRange = new FInt32Range(x.LowerBound, FInt32RangeBound.FlipInclusion(y.LowerBound));
FInt32Range upperRange = new FInt32Range(FInt32RangeBound.FlipInclusion(y.UpperBound), x.UpperBound);
if (!lowerRange.IsEmpty())
{
if (!upperRange.IsEmpty())
{
return(new FInt32Range[] { lowerRange, upperRange });
}
else
{
return(new FInt32Range[] { lowerRange });
}
}
if (!upperRange.IsEmpty())
{
return(new FInt32Range[] { upperRange });
}
return(new FInt32Range[0]);
}
else
{
return(new FInt32Range[] { x });
}
}
