CollectingCoins

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CollectTheCoijns
{
    public class CollectTheCoins
    {
        public static int[] currPositionOnTheBoard;
        public static string[] boardLayout;
        public static int coinsCollected = 0;
        public static int wallsHit = 0;

        public static void Main()
        {
            boardLayout = new string[4];

            for (int currRow = 0; currRow < boardLayout.Length; currRow++)
            {
                boardLayout[currRow] = Console.ReadLine();
            }

            string movesToMake = Console.ReadLine();

            currPositionOnTheBoard = new int[2];
            currPositionOnTheBoard[0] = 0;
            currPositionOnTheBoard[1] = 0;
            if (boardLayout[currPositionOnTheBoard[0]][currPositionOnTheBoard[1]] == '$')
            {
                coinsCollected++;
            }

            for (int currMove = 0; currMove < movesToMake.Length; currMove++)
            {
                char move = movesToMake[currMove];

                switch (move)
                {
                    case '<':
                        MakeAMoveAndCollectACoin(0, -1);
                        break;

                    case '^':
                        MakeAMoveAndCollectACoin(-1, 0);
                        break;

                    case '>':
                        MakeAMoveAndCollectACoin(0, 1);
                        break;

                    case 'V':
                        MakeAMoveAndCollectACoin(1, 0);
                        break;

                    default:
                        break;
                }
            }

            Console.WriteLine($"Coins collected: {coinsCollected}");
            Console.WriteLine($"Walls hit: {wallsHit}");
        }

        public static void MakeAMoveAndCollectACoin(int upAndDown, int rightAndLeft)
        {
            int[] lastPositionOnTheBoard = currPositionOnTheBoard.ToArray();

            try
            {
                currPositionOnTheBoard[0] += upAndDown;
                currPositionOnTheBoard[1] += rightAndLeft;

                if (boardLayout[currPositionOnTheBoard[0]][currPositionOnTheBoard[1]] == '$')
                {
                    coinsCollected++;
                }
            }
            catch (IndexOutOfRangeException)
            {
                currPositionOnTheBoard = lastPositionOnTheBoard.ToArray();

                wallsHit++;
            }
        }
    }
}