Project submitted

bin/tictactoe

@@ -1,3 +1,35 @@
 #!/usr/bin/env ruby
 
 require_relative '../config/environment'
+
+def start
+  input = ""
+  while input != "exit"
+    puts "Welcome to Tic Tac Toe!"
+    puts "What kind of game would you like to play? Enter '0 player', '1 player', or '2 player'."
+
+
+      input = gets.strip
+
+      case input
+
+      when input == "0 player"
+        Game.new(Players::Computer.new("X"), Players::Computer.new("O"), Board.new).play
+
+      when input == "1 player"
+        puts "Would you like to go first? Enter 'yes' or 'no'."
+        if input == "yes"
+          Game.new(Players::Human.new("X"), Players::Computer.new("O"), Board.new).play
+        else Game.new(Players::Computer.new("O"), Players::Human.new("X"), Board.new).play
+            end
+
+      when input == "2 player"
+        Game.new(Players::Human.new("X"), Players::Human.new("O"), Board.new).play
+        end
+
+        puts "Would you like to play again? If not enter 'exit'."
+
+    game_start until input == "exit"
+  end
+
+end

lib/board.rb

@@ -0,0 +1,54 @@
+require 'pry'
+class Board
+
+attr_accessor :cells
+
+def reset!
+  @cells = Array.new(9, " ")
+end
+
+def initialize
+ @cells = Array.new(9, " ")
+end
+
+def  display
+  puts " #{@cells[0]} | #{@cells[1]} | #{@cells[2]} "
+  puts "-----------"
+  puts " #{@cells[3]} | #{@cells[4]} | #{@cells[5]} "
+  puts "-----------"
+  puts " #{@cells[6]} | #{@cells[7]} | #{@cells[8]} "
+end
+
+def position(input)
+ @cells[input.to_i - 1]
+ end
+
+ def full?
+   @cells.all?{ |char| char == "X" || char == "O"}
+ end
+
+ def turn_count
+  counter = 0
+  @cells.each do |cell|
+    if cell == "X" || cell == "O"
+      counter += 1
+    end
+  end
+  counter
+ end
+
+
+def taken?(input)
+  position(input) == "X" || position(input) == "O" ? true : false
+end
+
+def valid_move?(input)
+  input.to_i.between?(1, 9) && !taken?(input)
+end
+
+def update(input, player)
+  @cells[input.to_i - 1] = player.token
+end
+
+
+end

lib/game.rb

@@ -0,0 +1,68 @@
+class Game
+
+attr_accessor :board, :player_1, :player_2
+
+  WIN_COMBINATIONS = [
+    [0,1,2],
+    [3,4,5],
+    [6,7,8],
+    [0,3,6],
+    [1,4,7],
+    [2,5,8],
+    [0,4,8],
+    [6,4,2]
+   ]
+
+  def initialize(player_1 = Players::Human.new("X"), player_2 = Players::Human.new("O"), board = Board.new)
+    @player_1 = player_1
+    @player_2 = player_2
+    @board = board
+  end
+
+
+def current_player
+  @board.turn_count % 2 == 0 ? player_1 : player_2
+end
+
+def won?
+ WIN_COMBINATIONS.detect do |win|
+   @board.cells[win[0]] == @board.cells[win[1]] && @board.cells[win[1]] == @board.cells[win[2]] &&
+   (@board.cells[win[0]] == "X" || @board.cells[win[0]] == "O")
+ end
+end
+
+def over?
+  @board.full?
+end
+
+def draw?
+  @board.full? && !won?
+end
+
+def winner
+  if win_combo = won?
+   @board.cells[win_combo[0]]
+  end
+end
+
+
+def turn
+  player = current_player
+  current = player.move(@board)
+  @board.valid_move?(current) ? @board.update(current, player) : turn
+end
+
+def play
+while !won? && !draw? && !over?
+  turn
+end
+  if won?
+    puts "Congratulations #{winner}!"
+  elsif draw?
+    puts "Cat's Game!"
+  end
+end
+
+
+
+end

lib/player.rb

@@ -0,0 +1,10 @@
+class Player
+
+attr_reader :token
+
+def initialize(token)
+@token = token
+end
+
+
+end

lib/players/computer.rb

@@ -0,0 +1,18 @@
+module Players
+  class Computer < Player
+
+  def move(board)
+    if board.cells[4] == " "
+      "5"
+    elsif board.cells[6] == " "
+      "7"
+    elsif board.cells[7] == " "
+      "8"
+    elsif board.cells[0] == " "
+      "1"
+    elsif board.cells[2] == " "
+      "3"
+  end
+end
+  end
+end

lib/players/human.rb

@@ -0,0 +1,10 @@
+module Players
+  class Human < Player
+
+  def move(board)
+  puts "Enter your move:"
+  gets.strip
+  end
+
+  end
+end