public bool Move(Plateu plateu)
{
bool res = false;
switch (currentDir)
{
case OrientationEnum.N:
res = incrementY(plateu);
break;
case OrientationEnum.S:
res = decrementY(plateu);
break;
case OrientationEnum.E:
res = incrementX(plateu);
break;
case OrientationEnum.W:
res = decrementX(plateu);
break;
}
return(res);
}
public static void Main(string[] args)
{
List <string> commands = new List <string>();
Console.WriteLine("Enter input (type END to stop):");
string singleCommand = string.Empty;
do
{
singleCommand = Console.ReadLine();
if (singleCommand.ToUpper() != "END")
{
commands.Add(singleCommand.ToUpper());
}
else
{
break;
}
} while (true);
List <Rover> listRovers = null;
Plateu plateu = null;
bool commandValid = CommandValidator(commands, out listRovers, out plateu);
}
private bool decrementY(Plateu plateu)
{
Point newCoordinates = new Point(coordinates.X, coordinates.Y - 1);
if (plateu.OccupiedCoordinates.Contains(newCoordinates))
{
Console.WriteLine("Position not changed. Another Rover at: (" + newCoordinates.X + ", " + newCoordinates.Y + ")");
return(false);
}
int newY = coordinates.Y - 1;
if (newY < 0)
{
newY = 0;
ErrorFlag = true;
}
coordinates = new Point(coordinates.X, newY);
return(true);
}
private bool incrementX(Plateu plateu)
{
Point newCoordinates = new Point(coordinates.X + 1, coordinates.Y);
if (plateu.OccupiedCoordinates.Contains(newCoordinates))
{
Console.WriteLine("Position not changed. Another Rover at: (" + newCoordinates.X + ", " + newCoordinates.Y + ")");
return(false);
}
int newX = coordinates.X + 1;
if (newX > plateu.MaxWidth)
{
newX = plateu.MaxWidth;
ErrorFlag = true;
}
coordinates = new Point(newX, coordinates.Y);
return(true);
}
public static bool CommandValidator(List <string> listToValidate, out List <Rover> listRovers, out Plateu plateu)
{
Regex regexRoverCoordinates = new Regex(@"^[0-9]{1}\s[0-9]{1}\s[NWSE]{1}$");
Regex regexRoverCommand = new Regex(@"^[LMR]*$");
Regex regexPlateuSize = new Regex(@"^[0-9]{1}\s[0-9]{1}$");
listRovers = new List <Rover>();
if (listToValidate.Count < 3 || listToValidate.Count % 2 == 0)
{
Console.WriteLine("Invalid number of commands - " + listToValidate.Count);
Console.ReadKey();
listRovers = null;
plateu = null;
return(false);
}
else
{
if (!regexPlateuSize.Match(listToValidate[0]).Success)
{
Console.WriteLine("Invalid plateu dimensions. Press key to terminate");
Console.ReadKey();
listRovers = null;
plateu = null;
return(false);
}
plateu = new Plateu(Convert.ToInt32(listToValidate[0].Substring(0, 1)), Convert.ToInt32(listToValidate[0].Substring(2, 1)));
for (int i = 1; i < listToValidate.Count; i++)
{
Console.WriteLine("i: " + i.ToString());
if (!regexRoverCoordinates.Match(listToValidate[i]).Success)
{
Console.WriteLine("Invalid rover position. Press key to terminate");
Console.ReadKey();
listRovers = null;
plateu = null;
return(false);
}
if (!regexRoverCommand.Match(listToValidate[i + 1]).Success)
{
Console.WriteLine("Invalid rover command. Press key to terminate");
Console.ReadKey();
listRovers = null;
plateu = null;
return(false);
}
if (!plateu.OccupiedCoordinates.Contains(new Point(Convert.ToInt32(listToValidate[i].Substring(0, 1)), Convert.ToInt32(listToValidate[i].Substring(2, 1)))))
{
OrientationEnum c = (OrientationEnum)Enum.Parse(typeof(OrientationEnum), listToValidate[i].Substring(4, 1), true);
Rover temp = new Rover(listToValidate[i + 1], Convert.ToInt32(listToValidate[i].Substring(0, 1)), Convert.ToInt32(listToValidate[i].Substring(2, 1)));
plateu.OccupiedCoordinates.Add(new Point(Convert.ToInt32(listToValidate[i].Substring(0, 1)), Convert.ToInt32(listToValidate[i].Substring(2, 1))));
listRovers.Add(temp);
}
i++;
}
}
return(true);
}
