How to I add numbers to the top of my tic tac toe program?

Question

I wrote a tic-tac-toe program. The board I made looks like this:

1  __|__|__
2  __|__|__
3    |  |  

The way I have set up the coordinates is that the first box is (1,1), the second (1,2), the third (1,3), the forth (2,1) etc. I wrote the 1, 2, and 3 on the side to make that clear to the user. I would also like to add the 1, 2, 3 to the top of the board. I need some help on how to do this.

Here is my code:

class Game

        def initialize
                @board=Array.new
                @board[1]="1  __|"
                @board[2]="__"
                @board[3]="|__"
                @board[4]="\n2  __|"
                @board[5]="__"
                @board[6]="|__"
                @board[7]="\n3    |"
                @board[8]="  "
                @board[9]="|  "
                @turn="x"
                @win_status = false
        end

        def turn
                @turn
        end

        def show_board
                @board.each do |i|
                        print i
                end
                puts ""
        end

        def set_turn #switches turns
        if @turn == "x"
                @turn = "o"
        else @turn == "o"
                @turn = "x"
        end
        end

        def make_move
                puts "Enter x coordinate"
                x=gets.to_i
                puts "Enter y coordinate"
                y=gets.to_i
@board[1]="1  _"+@turn+"|"   if y==1 && x==1
@board[2]="_"+@turn    if y==2 && x==1
@board[3]="|_"+@turn   if y==3 && x==1
@board[4]="\n_"+@turn+"|" if y==1 && x==2
@board[5]="_"+@turn    if y==2 && x==2
@board[6]="|_"+@turn   if y==3 && x==2
@board[7]="\n "+@turn+"|" if y==1 && x==3
@board[8]=" "+@turn    if y==2 && x==3
@board[9]="|"+@turn+" \n"    if y==3 && x==3
        end
def win_combo
                return [[@board[1][1] + @board[2][1] + @board[3][2]], [@board[4][2] + @board[5][1] + @board[6][2]], [@board[7][1] + @board[8][1] + @board[9][1]],[@board[1][1] + @board[4][2] + @board[7][1]], [@board[2][1] + @board[5][1] + @board[8][1]], [@board[3][2] + @board[6][2] + @board[9][1]], [@board[1][1] + @board[5][1] + @board[9][1]], [@board[3][2] + @board[5][1] + @board[7][1]]]
        end

        def check_win
                #if some row or column or diagonal is "xxx" or "ooo" then set @win_status = true
                self.win_combo.each do |arr|
                        str = arr.join
                        if str == "xxx" or str == "ooo"
                                return true
                        end
                end
                return false
        end
end


g = Game.new
while g.check_win != true
        g.show_board
        g.set_turn
        g.make_move
end
puts "won"

Answer 1

Either within your show_board function, you can print 1 2 3 there

def show_board
    puts "   1 2 3"
    @board.each do |i|
        print i
    end
    puts ""

or you can have it as part of the initialize and make_move blocks as

@board[1]="   1 2 3\n" + "1  __|"

---

Side note: within show_board function, instead of @board.each .. end block, you can use

@board.each {|i| print i}