/// <summary>
/// Start Rover deployment and return its position
/// </summary>
/// <param name="command"></param>
/// <returns></returns>
public PositionModel DeployRover(string command)
{
//Check if the command is correct
Regex directionCommandPattern = new Regex("^\\d+ \\d+ [NSWE]$");
if (directionCommandPattern.IsMatch(command))
{
//Split command to read individual command
var splitCommand = command.Split(" ");
var xPos = Convert.ToInt32(splitCommand[0]);
var yPos = Convert.ToInt32(splitCommand[1]);
var plateauSize = _plateauService.GetPlateau();
//throw exception if deployment is out of bound
if (xPos > plateauSize.Width ||
yPos > plateauSize.Height ||
xPos < 0 ||
yPos < 0)
{
throw new Exception("Rover couldnt be deployed");
}
return(new PositionModel
{
XPos = xPos,
YPos = yPos,
Direction = (Direction)Enum.Parse(typeof(Direction), splitCommand[2])
});
}
throw new Exception("Invalid Deployment Command");
}
private void Move(Direction direction, ref int xPos, ref int yPos)
{
//Get size of plateau
var plateauSize = _plateauService.GetPlateau();
//movement position doesnt respect boundary
if (xPos > plateauSize.Width || yPos > plateauSize.Height)
{
throw ThrowException(xPos, yPos, default);
}
switch (direction)
{
case Direction.N:
yPos += 1;
if (yPos < 0 || yPos > plateauSize.Height)
{
throw ThrowException(xPos, yPos, Direction.N);
}
break;
case Direction.E:
xPos += 1;
if (xPos < 0 || xPos > plateauSize.Width)
{
throw ThrowException(xPos, yPos, Direction.E);
}
break;
case Direction.S:
yPos -= 1;
if (yPos < 0)
{
throw ThrowException(xPos, yPos, Direction.S);
}
break;
case Direction.W:
xPos -= 1;
if (xPos < 0)
{
throw ThrowException(xPos, yPos, Direction.W);
}
break;
}
}
/// <summary>
/// Executes all the commands
/// </summary>
/// <param name="cardanoCommand"></param>
/// <returns></returns>
public async Task ExecuteMission(string[] cardanoCommand)
{
//Start reading commands line by line
for (int i = 1; i < cardanoCommand.Length; i++)
{
try
{
//Call deploy method for specific cordinate
Console.WriteLine("Rover is ready for deployment");
var deployRover = _roverDeploymentService.DeployRover(cardanoCommand[i]);
//Call movement method for specific movements
Console.WriteLine("Rover deployed, moving to specified cordinates");
var position = await _roverMovementService.MoveRover(cardanoCommand[i + 1], deployRover, _plateauService.GetPlateau());
Console.WriteLine("Rover is at current position: " + position.XPos + " " + position.YPos + " " + position.Direction);
Console.WriteLine("---------------------------------");
}
catch (Exception ex)
{
//Catch exception if deployment or movement fails
Console.WriteLine(ex.Message);
Console.WriteLine("---------------------------------");
}
finally
{
i++;
}
}
}
