atomMap constant
Implementation
static const Map<String, Direction> atomMap = {
'W': Direction(1, 0),
'F': Direction(1, 1),
'D': Direction(2, 0),
'N': Direction(2, 1),
'A': Direction(2, 2),
'C': Direction(3, 1),
'Z': Direction(3, 2),
'H': Direction(3, 0),
'G': Direction(3, 3),
'*': Direction.none,
};