ruby - Ruby 的新手，尝试将数组与嵌套数组进行比较

Question

所以我正在构建一个井字游戏，我试图从我的棋盘哈希中提取键，然后将其与数组中的数组进行比较。问题是获胜组合都有 3 个值，但玩家可能需要 4 或 5 步才能获胜，所以我想看看这 4 或 5 个值是否包括其中一个获胜组合(希望这是有意义的)。具体来说，问题出在 winner_check 方法上，有没有办法让这个方法起作用？

def initialize_board
  board = {}
  (1..9).each {|position| board[position] = ' ' }
  board
end

def empty_positions(board)
  board.keys.select {|position| board[position] != 'X' && 'O'}
end

def player_turn(board)
  puts "Let's play Tic Tac Toe! Pick a position 1-9 and try to beat me."
  position = gets.chomp.to_i
  board[position] = 'X'
end

def computer_turn(board)
  position = empty_positions(board).sample
  board[position] = 'O'
end

def winner_check(board)
  winning_combos = [[1, 2, 3], 
    [4, 5, 6], 
    [7, 8, 9], 
    [1, 4, 7], 
    [2, 5, 8], 
    [3, 6, 9], 
    [1, 5, 9],
    [3, 5, 7]]
    winning_combos.each {|combo|}
      if board.select { |k,v| v == 'X' }.keys.include?(combo)
        puts "You've won! Great job!"
      if board.select { |k,v| v == 'O' }.keys.include?(combo)
        puts "Looks like the computer outsmarted you, try again!"
      elsif
        puts "Looks like you've tied, try again!"
      end
    nil
  nil
end

def game_over?(board)
  empty_positions(board) == []
end

def draw_board(board)
  puts
  puts " #{board[1]} | #{board[2]} | #{board[3]} "
  puts "---+---+---"
  puts " #{board[4]} | #{board[5]} | #{board[6]} "
  puts "---+---+---"
  puts " #{board[7]} | #{board[8]} | #{board[9]} "
  puts
end

board = initialize_board
draw_board(board)

until winner_check(board) || game_over?(board)
  player_turn(board)
  draw_board(board)
  winner_check(board)
  computer_turn(board)
  draw_board(board)
  winner_check(board)
end

Answer 1

我认为你在正确的轨道上，但你有一些语法错误:

winning_combos.each {|combo|}
  if board.select { |k,v| v == 'X' }.keys.include?(combo)
    puts "You've won! Great job!"
  if board.select { |k,v| v == 'O' }.keys.include?(combo)
    puts "Looks like the computer outsmarted you, try again!"
  elsif
    puts "Looks like you've tied, try again!"
  end
nil

在第一行，您过早地关闭了您的区 block 。行尾的 } 关闭 block 。

在最后一行，您有文字 nil 的地方，我认为这是您结束 } 的地方。

你还有两个连续的if，应该是if, elsif。

更正了语法错误:

winning_combos.each { |combo|

  if board.select { |k,v| v == 'X' }.keys.include?(combo)
    puts "You've won! Great job!"
  elsif board.select { |k,v| v == 'O' }.keys.include?(combo)
    puts "Looks like the computer outsmarted you, try again!"
  elsif
    puts "Looks like you've tied, try again!"
  end
}