Tic-Tac-Toe

.rbenv-version

1.9.2-p290

computer_player.rb

class ComputerPlayer

  

end

Gemfile

source "http://rubygems.org"

gem "rspec"

Gemfile.lock

GEM
  remote: http://rubygems.org/
  specs:
    diff-lcs (1.1.3)
    rspec (2.10.0)
      rspec-core (~> 2.10.0)
      rspec-expectations (~> 2.10.0)
      rspec-mocks (~> 2.10.0)
    rspec-core (2.10.0)
    rspec-expectations (2.10.0)
      diff-lcs (~> 1.1.3)
    rspec-mocks (2.10.0)

PLATFORMS
  ruby

DEPENDENCIES
  rspec

tic_tac_toe.rb

class TicTacToe

  class << self

    def choose_first_player
      rand(2) == 0 ? "X" : "O"
    end

  end

  attr_accessor :plays

  def initialize
    @plays = { "X" => [], "O" => [] }
  end

  def move(player, position)
    raise "Invalid move." if @plays.values.flatten.include?(position)
    @plays[player] << position
  end

  def generate_board
    output = " 0 | 1 | 2 \n-----------\n 3 | 4 | 5 \n-----------\n 6 | 7 | 8 "
    @plays.each do |k,v|
      v.each { |pos| output.gsub!("#{pos}", k) }
    end
    output.gsub!(/\d/, " ")
  end

  def winner?(player)
    [[0,1,2], [3,4,5], [6,7,8], [0,3,6], [1,4,7], [2,5,8], [0,4,8], [2,4,6]].each do |position|
      return true if (position - @plays[player]) == []
    end
    return false
  end

end

tic_tac_toe_spec.rb

require_relative "../tic_tac_toe"

describe TicTacToe do

  describe ".move" do

    it "raises an exception if the move is illegal"

    it "sets the move for the player if the move is legal"

  end

  describe ".output_board" do

    it "outputs the state of the board when empty"

    it "outputs the state of the board when moves have been made"

  end

  describe ".winner?" do

    it "returns true if the player has won"

    it "returns false if the player has not won"

  end

end