To start a new Tic Tac Toe game, create a Board object and a Game object, then Game#session method.

Game#session takes three parameters, the board and one for each player. You can fill this with either a Player object, or an AIPlayer object as shown below.

Require the files from the app folder

require "./app/models/player"
require "./app/models/ai"
require "./app/models/game"
require "./app/models/board"

Create the Board and the Game

board = Board.new `game = Game.new

Play with two humans
player_one = Player.new(board, 'X')
player_two = Player.new(board, 'O')
game.session(board, player_one, player_two)

Play with two computers
player_one_AI = AIPlayer.new(board, "X", "O")
player_two_AI = AIPlayer.new(board, "O", "X")
game.session(board, player_one_AI, player_two_AI)

Play Human-AI
player_one = Player.new(board, 'X')
player_two_AI = AIPlayer.new(board, "O", "X")
game.session(board, player_one, player_two_AI)

Use ruby runner.rb to view example in root directory.