public static Nullable <Direction> TryParse(string str)
{
if (str.Length > 1)
{
return(null);
}
return(DirectionUtilities.TryParse(str[0]));
}
public static Rover TryParse(Plateau plateau, string str)
{
var parts = str.Split(" ", StringSplitOptions.RemoveEmptyEntries);
if (parts.Length != 3)
{
return(null);
}
else
{
var position = Position.FromStrings(parts[0], parts[1]);
var direction = DirectionUtilities.TryParse(parts[2]);
if (position != null && direction != null)
{
return(new Rover(plateau, position.Value, direction.Value));
}
else
{
return(null);
}
}
}