N = '(N)orth'
S = '(S)outh'
E = '(E)ast'
W = '(W)est'


def moving(col: int, row: int, direction: str)->int:
    ''' Take in current position and return a new position'''

    if direction.lower() == 'n':
        row += 1
    elif direction.lower() == 's':
        row -= 1
    elif direction.lower() == 'e':
        col += 1
    elif direction.lower() == 'w':
        col -= 1
    return col, row


def play(victory, direction, acceptable_moves, col, row):
    ''' Main game '''
    while not victory:  # main loop
        if direction in acceptable_moves:
            if ((col == 1) and (row == 1)) or ((col == 2) and (row == 1)):  # (1,1) / (2,1)
                print(f"You can travel: {N}.")
                acceptable_moves = ('n')
            elif (col == 1) and (row == 2):  # (1,2)
                print(f"You can travel: {N} or {E} or {S}.")
                acceptable_moves = ('n', 'e', 's')
            elif (col == 1) and (row == 3):  # (1,3)
                print(f"You can travel: {E} or {S}.")
                acceptable_moves = ('e', 's')
            elif (col == 2) and (row == 2):  # (2,2)
                print(f"You can travel: {S} or {W}.")
                acceptable_moves = ('s', 'w')
            elif (col == 3) and (row == 3):  # (3,3)
                print(f"You can travel: {S} or {W}.")
                acceptable_moves = ('s', 'w')
            elif (col == 2) and (row == 3):  # (2,3 )
                print(f"You can travel: {E} or {W}.")
                acceptable_moves = ('e', 'w')
            elif (col == 3) and (row == 2):  # (3,2)
                print(f"You can travel: {N} or {S}.")
                acceptable_moves = ('n', 's')
            elif col == 3 and row == 1:  # (3,1) - Win condition
                print('Victory!')
                break
        direction = str(input("Direction: "))
        direction = direction.lower()
        if direction in acceptable_moves:
            col, row = moving(col, row, direction)  # Function call
        else:
            print('Not a valid direction!')


col, row = 1, 1
acceptable_moves = ('')
direction = ''
victory = False


play(victory, direction, acceptable_moves, col, row)