first_tic_tac_toe.fpy

a: str = ' '
b: str = ' '
c: str = ' '
d: str = ' '
e: str = ' '
f: str = ' '
g: str = ' '
h: str = ' '
i: str = ' '

who_move: str = 'X'
continue_game: bool = true


fun next_player(who_move: str) -> str:
    if who_move == 'X':
        return 'O'
    else:
        return 'X'




fun draw_vert_border(endl: bool = false):
    log('|', endl)

fun draw_horz_border():
    log('+-+-+-+', true)

fun draw_row(a: str, b: str, c: str):
    draw_vert_border()
    log(a)
    draw_vert_border()
    log(b)
    draw_vert_border()
    log(c)
    draw_vert_border(true)

fun draw(a: str, b: str, c: str, d: str, e: str, f: str, g: str, h: str, i: str):
    draw_horz_border()
    draw_row(a, b, c)
    draw_horz_border()
    draw_row(d, e, f)
    draw_horz_border()
    draw_row(g, h, i)
    draw_horz_border()



fun ask_cell(who_move: str) -> int:
    log(who_move)
    cell: int = input(' choose cell >>')
    return cell

fun check_three(a: str, b: str, c: str) -> bool:
    return a == b and b == c and c != ' '

fun check_game_over(a: str, b: str, c: str, d: str, e: str, f: str, g: str, h: str, i: str) -> bool:
    r1 = check_three(a, b, c)
    r2 = check_three(a, d, g)
    r3 = check_three(a, e, i)
    r4 = check_three(b, e, h)
    r5 = check_three(d, e, f)
    r6 = check_three(g, e, c)
    r7 = check_three(c, f, i)
    r8 = check_three(g, h , i)
    return r1 or r2 or r3 or r4 or r5 or r6 or r7 or r8

fun check_draw(a: str, b: str, c: str, d: str, e: str, f: str, g: str, h: str, i: str) -> bool:
    return a != ' ' and b != ' ' and c != ' ' and d != ' ' and e != ' ' and f != ' ' and g != ' ' and h != ' ' and i != ' '

while continue_game:
    draw(a, b, c, d, e, f, g, h, i)
    cell = ask_cell(who_move)

    if cell == 1:
        a = who_move
    elif cell == 2:
        b = who_move
    elif cell == 3:
        c = who_move
    elif cell == 4:
        d = who_move
    elif cell == 5:
        e = who_move
    elif cell == 6:
        f = who_move
    elif cell == 7:
        g = who_move
    elif cell == 8:
        h = who_move
    elif cell == 9:
        i = who_move
    else:
        log_error('Enter number in range: 1 - 9!', true)
        who_move = next_player(who_move)

    game_over = check_game_over(a, b, c, d, e, f, g, h, i)
    drw = check_draw(a, b, c, d, e, f, g, h, i)

    if drw:
        draw(a, b, c, d, e, f, g, h, i)
        log_info('Draw!')
        continue_game = false
    elif game_over:
        draw(a, b, c, d, e, f, g, h, i)
        log_info('Game Over! ')
        log_info('Won: ')
        log_info(who_move)
        continue_game = false



    who_move = next_player(who_move)