private Tuple <Position, Position> GetDirections(Line.Direction direction)
{
// TG: consider simplifying it to array and then use direction as an index in the array.
if (direction == Line.Direction.Horizontal)
{
return(new Tuple <Position, Position>(new Position(0, -1), new Position(0, 1)));
}
if (direction == Line.Direction.Vertical)
{
return(new Tuple <Position, Position>(new Position(-1, 0), new Position(1, 0)));
}
if (direction == Line.Direction.Descending)
{
return(new Tuple <Position, Position>(new Position(-1, -1), new Position(1, 1)));
}
if (direction == Line.Direction.Ascending)
{
return(new Tuple <Position, Position>(new Position(1, -1), new Position(-1, 1)));
}
return(null);
}
private Line GetLine(Position position, Line.Direction directions)
{
var line = GetLine(position, GetDirections(directions));
return(line);
}
