我目前正在制作一款曾经如此受欢迎的Tic-Tac-Toe游戏的复制品，使用纯红宝石制作。测试了TDD风格。
我唯一的问题是，在我的生活中，我无法弄清楚如何检查玩家何时获胜。我知道这是一个相对简单的问题，但我只是在其中的一天 - 而且我真的只是作为最后的手段在这里发布。
非常感谢任何帮助 - 并且可以随意批评我当前的代码！我能应付。 ：）
我的代码：
class TicTacToe
WINNING_COMBINATIONS = [[0, 1, 2], [3, 4, 5], [6, 7, 8], #Horizontal
[0, 3, 6], [1, 4, 7], [2, 5, 8], #Vertical
[0, 4, 8], [2, 4, 6]] #Diagonal
def initialize
@board = ["", "", "", "", "", "", "", "", ""]
@players = ['player_one', 'player_two']
@current_player = 'player_one'
end
def player_1
@players.first
end
def player_2
@players.last
end
def switch
@current_player = opponent_of(@current_player)
end
def display_board
puts " #{@board[0]} | #{@board[1]} | #{@board[2]} "
puts "-----------"
puts " #{@board[3]} | #{@board[4]} | #{@board[5]} "
puts "-----------"
puts " #{@board[6]} | #{@board[7]} | #{@board[8]} "
end
def move(position)
fail "Please select a space within range." if position < 1 || position > 9
fail "That space is already taken!" unless @board[position-1].empty?
if @current_player == player_1
@board[position-1] = 'o'
else
@board[position-1] = 'x'
end
switch
end
def check_for_winner
#Help!
end
private
def opponent_of(player)
@players.select { |p| p != player }.first
end
end
答案 0 :(得分：2)
我会从这样的事情开始：
def check_for_winner
WINNING_COMBINATIONS.each do |combination|
case board.values_at(*combination)
when %w(o o o)
return 'Player 1 wins'
when %w(x x x)
return 'Player 2 wins'
end
end
end
答案 1 :(得分：1)
你非常接近。我不想为你编写代码，但我会给你一些伪代码，你应该从中识别出适用的正确算法：
def has_winner(board)
WINNING_COMBINATIONS.each do |i, j, k|
return true if board[i] == board[j] && board[i] == board[k]
end
false
end
根据需要进行整合，然后可能会试图通过一些更高阶的函数来获得所有的幻想。
顺便说一句，有一些非常奇特且更快的方法来计算基于位掩码和两个等的求和功能的获胜，但我猜测最可读的是什么。
答案 2 :(得分：1)
这是确定小阵列（获胜集）是否完全是较大阵列（板）的子集的问题。你可以用简单的数组减法来做到这一点。
def has_winner(board)
WINNING_COMBINATIONS.each do |line|
return true if (line - board) == []
end
return false
end
将@Stefan的优秀建议纳入另一个答案......
def has_winner(board)
WINNING_COMBINATIONS.any? {|line| (line - board) == [] }
end
答案 3 :(得分：1)
Using if elsif else (:Tic Tac Toe) *Game*" )
------------------------------------------------
a=['','','','','','','','','']
puts "(Tic Tac Toe) *Game*"
puts ""
puts " #{a[0]} | #{a[1]} | #{a[2]} "
puts "-----------"
puts " #{a[3]} | #{a[4]} | #{a[5]} "
puts "-----------"
puts " #{a[6]} | #{a[7]} | #{a[8]} "
puts " "
a.each_with_index do |n,index|
val=''
puts "Enter your Sign:"
val=gets.chomp
loc=''
puts "Enter location:"
loc=gets.to_i
if loc == 1
a[0]=val
puts " #{a[0]} | #{a[1]} | #{a[2]} "
puts "-----------"
puts " #{a[3]} | #{a[4]} | #{a[5]} "
puts "-----------"
puts " #{a[6]} | #{a[7]} | #{a[8]} "
puts " "
end
# check posible condition to win loction (1)
if (a[0] !="") && (a[0] == a[1]) && (a[0] == a[2])
puts "You are win"
break
elsif (a[0] !="") && (a[0] == a[3]) && (a[0] == a[6])
puts "You are win"
break
elsif (a[0] !="") && (a[0] == a[4]) && (a[0] == a[8])
puts "You are win"
break
else
end
if loc == 02
a[1]=val
puts " #{a[0]} | #{a[1]} | #{a[2]} "
puts "-----------"
puts " #{a[3]} | #{a[4]} | #{a[5]} "
puts "-----------"
puts " #{a[6]} | #{a[7]} | #{a[8]} "
puts " "
end
# check posible condition to win loction (2)
if (a[1] !="") && (a[0] == a[1]) && (a[0] == a[2])
puts "You are win"
break
elsif (a[1] !="") && (a[1] == a[4]) && (a[1] == a[7])
puts "You are win"
break
else
end
if loc == 3
a[2]=val
puts " #{a[0]} | #{a[1]} | #{a[2]} "
puts "-----------"
puts " #{a[3]} | #{a[4]} | #{a[5]} "
puts "-----------"
puts " #{a[6]} | #{a[7]} | #{a[8]} "
puts " "
end
# check posible condition to win loction (3)
if (a[2] !="") && (a[2] == a[1]) && (a[2] == a[0])
puts "you are win"
break
elsif (a[2] !="") && (a[2] == a[4]) && (a[2] == a[6])
puts "You are win"
break
elsif (a[2] !="") && (a[2] == a[5]) && (a[2] == a[8])
puts "You are win"
break
else
end
# End win posible conditions
if loc == 4
a[3]=val
puts " #{a[0]} | #{a[1]} | #{a[2]} "
puts "-----------"
puts " #{a[3]} | #{a[4]} | #{a[5]} "
puts "-----------"
puts " #{a[6]} | #{a[7]} | #{a[8]} "
puts " "
end
# check posible condition to win loction (4)
if (a[3] !="") && (a[3] == a[4]) && (a[3] == a[5])
puts "you are win"
break
elsif (a[3] !="") && (a[3] == a[0]) && (a[3] == a[6])
puts "You are win"
break
else
end
# End win posible conditions
if loc == 5
a[4]=val
puts " #{a[0]} | #{a[1]} | #{a[2]} "
puts "-----------"
puts " #{a[3]} | #{a[4]} | #{a[5]} "
puts "-----------"
puts " #{a[6]} | #{a[7]} | #{a[8]} "
puts " "
end
# check posible condition to win loction (5)
if (a[4] !="") && (a[4] == a[1]) && (a[4] == a[7])
puts "You are win"
break
elsif (a[4] !="") && (a[4] == a[3]) && (a[4] == a[5])
puts "You are win"
break
elsif (a[4] !="") && (a[4] == a[2]) && (a[4] == a[6])
puts "You are win"
break
else
end
if loc == 6
a[5]=val
puts " #{a[0]} | #{a[1]} | #{a[2]} "
puts "-----------"
puts " #{a[3]} | #{a[4]} | #{a[5]} "
puts "-----------"
puts " #{a[6]} | #{a[7]} | #{a[8]} "
puts " "
end
# check posible condition to win loction (6)
if (a[5] !="") && (a[5] == a[2]) && (a[5] == a[8])
puts "You are win"
break
elsif (a[5] !="") && (a[5] == a[3]) && (a[5] == a[4])
puts "You are win"
break
else
end
if loc == 7
a[6]=val
puts " #{a[0]} | #{a[1]} | #{a[2]} "
puts "-----------"
puts " #{a[3]} | #{a[4]} | #{a[5]} "
puts "-----------"
puts " #{a[6]} | #{a[7]} | #{a[8]} "
puts " "
end
# check posible condition to win loction (7)
if (a[6] !="") && (a[6] == a[1]) && (a[6] == a[3])
puts "You are win"
break
elsif (a[6] !="") && (a[6] == a[7]) && (a[6] == a[8])
puts "You are win"
break
elsif (a[6] !="") && (a[6] == a[4]) && (a[6] == a[2])
puts "You are win"
break
else
end
if loc == 8
a[7]=val
puts " #{a[0]} | #{a[1]} | #{a[2]} "
puts "-----------"
puts " #{a[3]} | #{a[4]} | #{a[5]} "
puts "-----------"
puts " #{a[6]} | #{a[7]} | #{a[8]} "
puts " "
end
# check posible condition to win loction (8)
if (a[7] !="") && (a[7] == a[6]) && (a[7] == a[8])
puts "You are win"
break
elsif (a[7] !="") && (a[7] == a[4]) && (a[7] == a[1])
puts "You are win"
break
else
end
if loc == 9
a[8]=val
puts " #{a[0]} | #{a[1]} | #{a[2]} "
puts "-----------"
puts " #{a[3]} | #{a[4]} | #{a[5]} "
puts "-----------"
puts " #{a[6]} | #{a[7]} | #{a[8]} "
puts " "
end
# check posible condition to win loction (9)
if (a[8] !="") && (a[8] == a[7]) && (a[8] == a[6])
puts "You are win"
break
elsif (a[8] !="") && (a[8] == a[4]) && (a[8] == a[0])
puts puts "You are win"
break
elsif (a[8] !="") && (a[8] == a[5]) && (a[8] == a[2])
puts "you are win"
break
else
puts "Again play No winner"
end
end
puts "=============================="
puts "Game Preview"
puts " #{a[0]} | #{a[1]} | #{a[2]} "
puts "-----------"
puts " #{a[3]} | #{a[4]} | #{a[5]} "
puts "-----------"
puts " #{a[6]} | #{a[7]} | #{a[8]} "
puts " "