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April 15, 2015 14:30
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Ruby Tic Tac Toe
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class Window | |
#pauses game until player presses enter key | |
def pause | |
STDIN.gets | |
end | |
end | |
class Game | |
$tiles = [0, 1, 2, 3, 4, 5, 6, 7, 8] | |
def greetings | |
puts"Welcome to tic-tac-toe version 1.0 by Jeff Maxim!" | |
puts"Press enter if you're ready to start" | |
Screen.pause | |
end | |
def instructions | |
written_instructions = <<-END | |
This is tic-tac-toe! | |
Player X goes first. | |
Line up three squares in a row (horizontally, vertically, diagonally) to win! | |
Game ends with a win or when all 9 squares are filled. | |
Winning player gets all the glory! | |
END | |
puts written_instructions | |
end | |
def show_board(player) | |
flag = true | |
while flag | |
board_generator | |
move = move_getter(player) | |
if good_player_move(move) | |
flag = false | |
elsif !good_player_move(move) | |
puts"Invalid move. Try Again player #{player}" | |
end | |
end | |
return move | |
end | |
def board_generator | |
@board = [ | |
["#{$tiles[0]}", "#{$tiles[1]}", "#{$tiles[2]}"], | |
["#{$tiles[3]}", "#{$tiles[4]}", "#{$tiles[5]}"], | |
["#{$tiles[6]}", "#{$tiles[7]}", "#{$tiles[8]}"] | |
] | |
@board.each do |row| | |
print "|" | |
row.each { |cell| print "#{cell}|" } | |
puts "\n-------" | |
end | |
end | |
def move_getter(player) | |
move = nil # initialize the variable so you can invoke methods on it | |
until move.is_a?(Fixnum) do | |
puts "It's your turn player #{player}." | |
puts "Please enter the number where you wanna place your #{player}: " | |
move = Integer(gets) rescue nil | |
end | |
return move | |
end | |
def good_player_move(move) | |
return false if move != $tiles[move] | |
return true | |
end | |
def play | |
player = "X" | |
number_moves = 0 | |
flag = true | |
while flag | |
square = show_board(player) | |
$tiles[square] = player if square == $tiles[square] | |
number_moves += 1 | |
winner = win?(player) | |
flag = winner_if?(winner, number_moves) | |
player = player_switcher(player) | |
end | |
end | |
def winner_if?(winner, number_moves) | |
if winner == "X" | |
game_over("player X wins") | |
return false | |
elsif winner == "O" | |
game_over("player O wins") | |
return false | |
elsif number_moves > 8 | |
game_over("tie") | |
return false | |
end | |
return true | |
end | |
def win?(player) | |
(0..2).each do |i| | |
if $tiles[i] == player && $tiles[i+3] == player && $tiles[i+6] == player #check for vertical win | |
return player | |
elsif $tiles[(i*3)] == player && $tiles[(i*3) + 1] == player && $tiles[(i*3) + 2] == player #check for horizontal win | |
return player | |
end | |
end | |
#check for diagonal wins | |
if $tiles[0] == player && $tiles[4] == player && $tiles[8] == player | |
return player | |
elsif $tiles[2] == player && $tiles[4] == player && $tiles[6] == player | |
return player | |
end | |
return false | |
end | |
def game_over(statement) | |
puts statement | |
end | |
def player_switcher(player) | |
if player == "X" | |
return("O") | |
else | |
return("X") | |
end | |
end | |
def credits | |
puts "Game Over" | |
puts "Developed by Jeff Maxim" | |
puts "I wanna go to Recurse Center!" | |
end | |
end | |
Screen = Window.new | |
new_game = Game.new | |
new_game.greetings | |
new_game.instructions | |
new_game.play | |
new_game.credits |
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