19bool Direction::isHorizontal(Direction::Type type)
21 return type == Direction::Leftwards
22 || type == Direction::Rightwards
23 || type == Direction::Horizontal;
26bool Direction::isVertical(Direction::Type type)
28 return type == Direction::Upwards
29 || type == Direction::Downwards
30 || type == Direction::Vertical;
33bool Direction::isPositive(Direction::Type type)
35 return type == Rightwards