Untitled

using System;

namespace MarsRover
{
    public class Rover
    {
        public int X { get; set; }
        public int Y { get; set; }
        public char Direction { get; set; }

        public Rover(int x, int y, char direction)
        {
            X = x;
            Y = y;
            Direction = direction;
        }

        public void Move(char movement)
        {
            switch (movement)
            {
                case 'L':
                    TurnLeft();
                    break;
                case 'R':
                    TurnRight();
                    break;
                case 'M':
                    MoveForward();
                    break;
                default:
                    throw new ArgumentOutOfRangeException();
            }
        }

        private void MoveForward()
        {
            switch (Direction)
            {
                case 'N':
                    if (Y + 1 <= Grid.Height)
                        Y += 1;
                    break;

                case 'E':
                    if (X + 1 <= Grid.Width)
                        X += 1;
                    break;

                case 'S':
                    if (Y - 1 >= 0)
                        Y -= 1;
                    break;

                case 'W':
                    if (X - 1 >= 0)
                        X -= 1;
                    break;
                default:
                    throw new ArgumentOutOfRangeException();
            }
        }


        private void TurnLeft()
        {
            switch (Direction)
            {
                case 'N':
                    Direction = 'W';
                    break;

                case 'W':
                    Direction = 'S';
                    break;

                case 'S':
                    Direction = 'E';
                    break;

                case 'E':
                    Direction = 'N';
                    break;
                default:
                    throw new ArgumentOutOfRangeException();
            }
        }

        private void TurnRight()
        {
            switch (Direction)
            {
                case 'N':
                    Direction = 'E';
                    break;

                case 'E':
                    Direction = 'S';
                    break;

                case 'S':
                    Direction = 'W';
                    break;

                case 'W':
                    Direction = 'N';
                    break;
                default:
                    throw new ArgumentOutOfRangeException();
            }
        }
    }
}