//Checks for user input validity.
public LaunchInput ValidateInput(List <string> RawData)
{
LaunchInput Data = new LaunchInput();
try{
if (RawData.Count == 6)
{
try{
if (IsPositiveNumber(Int32.Parse(RawData[0]), Int32.Parse(RawData[1]), Int32.Parse(RawData[2]), Int32.Parse(RawData[3])))
{
Data.x = Int32.Parse(RawData[2]);
Data.y = Int32.Parse(RawData[3]);
Data.Limit_x = Int32.Parse(RawData[0]);
Data.Limit_y = Int32.Parse(RawData[1]);
Data.Direction = (RawData[4].ToUpper()).ToCharArray()[0];
Data.Instructions = RawData[5].ToUpper();
}
else
{
throw new System.ArgumentException();
}
if (Data.x > Data.Limit_x || Data.y > Data.Limit_y)
{
ValidationFeedback("bounds");
return(null);
}
} catch {
ValidationFeedback("coordinate");
return(null);
}
foreach (char move in Data.Instructions)
{
if (move != 'L' && move != 'M' && move != 'R')
{
Console.WriteLine(move);
ValidationFeedback("instructions");
return(null);
}
}
if (!("ESWN").Contains(Data.Direction))
{
ValidationFeedback("direction");
return(null);
}
}
return(Data);
}catch (Exception) {
return(null);
}
}
/* private static void AcceptInput()
* {
* ConsoleKeyInfo key = Console.ReadKey();
*
* switch (key.Key)
* {
* case ConsoleKey.LeftArrow:
* _left--;
* break;
* case ConsoleKey.RightArrow:
* _left++;
* break;
* case ConsoleKey.UpArrow:
* _top--;
* break;
* case ConsoleKey.DownArrow:
* _top++;
* break;
*
* }
* }
* private static void DrawScreen()
* {
* Console.Clear();
* Console.SetCursorPosition(_left, _top);
* Console.Write('*');
* }
*/static void Main(string[] args)
{
//Reads arguments from the stadard output.
List <string> RawData = new List <string>();
RawData.AddRange(args);
Console.Clear();
//validates User input
UserInputs Transmission = new UserInputs();
LaunchInput Data = Transmission.ValidateInput(RawData);
if (Data != null)
{
//Impliments the the valid input.
Navigation connection = new Navigation();
//if (Data.Count() < 6)
Console.WriteLine(connection.NavigateRover(Data));
}
}
public string NavigateRover(LaunchInput Transmission)
{
try{
//Map dimensions
int xLimit = Transmission.Limit_x, yLimit = Transmission.Limit_y;
//Starting position
int x = Transmission.x, y = Transmission.y;
char direction = Transmission.Direction;
//User Input
string instruction = Transmission.Instructions;
foreach (char move in instruction)
{
if (move == 'M')
{
//If the rover is moving on the along the X-axis (Inner Array), Moves Left/Right
if (direction == 'E' || direction == 'W')
{
switch (direction)
{
case 'E':
x++;
break;
case 'W':
x--;
break;
}
}
//If the rover is moving on the along the Y-axis (Main Array), Moves Up/Down.
else if (direction == 'N' || direction == 'S')
{
switch (direction)
{
case 'S':
y++;
break;
case 'N':
y--;
break;
}
}
// Check if new position is still within bounds.
if (x >= xLimit || y >= yLimit)
{
Console.WriteLine("You have driven the Rover out of setalite range...");
return(" --- Mission Failed !! ---");
}
}
else
{
direction = ChangeDirection(direction, move);
}
}
Console.WriteLine("******** Successful transmission... ********");
return("\tCurrent Rover position - " + x + " " + y + " " + direction + "\n");
} catch (Exception) {
Console.WriteLine("Input Error!\n \t Example input : 25 25 12 19 S MMRLMMMMML");
return("Transmission to the Mars Rover has Failed!\n\n");
}
}
