public static void Main(string[] args)
{
var roverService = new RoverService(new RoverParser(), new RoverManager());
string fileName = args.FirstOrDefault();
var fileContents = File.ReadAllLines(fileName);
if (string.IsNullOrWhiteSpace(fileName))
{
System.Console.Error.WriteLine("Please enter a file name.");
}
else
{
try
{
roverService.ExecuteInstructions(fileContents);
var headingConverter = new HeadingConverter();
foreach (var rover in roverService.EnumerateRovers())
{
System.Console.WriteLine(string.Format("Rover{0}:{1} {2} {3}", rover.Id, rover.Position.X, rover.Position.Z, headingConverter.ToChar(rover.Heading)));
}
}
catch (Exception ex)
{
System.Console.Error.WriteLine(ex.Message);
}
}
System.Console.Write("Please press any key...");
System.Console.ReadLine();
}
public Rover ParseLanding(string lineContents)
{
var result = Regex.Match(lineContents, @"^Rover(\d+)\sLanding:\s*(\d+)\s*(\d+)\s*([NSEW])\s*$", RegexOptions.IgnoreCase);
if (result.Success)
{
var headingConverter = new HeadingConverter();
var heading = headingConverter.ToVector(result.Groups[4].Value[0]);
if (heading == null)
{
return(null);
}
return(new Rover()
{
Id = Int32.Parse(result.Groups[1].Value),
Position = new Vector()
{
X = Int32.Parse(result.Groups[2].Value),
Z = Int32.Parse(result.Groups[3].Value)
},
Heading = heading
});
}
else
{
return(null);
}
}
public void ParseLanding_ShouldParseValidCoordinates(string input, int id, int x, int y, char heading)
{
var parser = new RoverParser();
var headingConverter = new HeadingConverter();
var results = parser.ParseLanding(input);
Assert.NotNull(results);
Assert.NotNull(results.Position);
Assert.Equal(id, results.Id);
Assert.Equal(x, results.Position.X);
Assert.Equal(y, results.Position.Z);
Assert.Equal(heading, headingConverter.ToChar(results.Heading));
}
