Tic Tac Toe

Objective

In order to practice what we have learned regarding OOP and best practices, let's implement a Tic-Tac-Toe (Gato in Spanish) game!

Rules

• Two players represented with X and O
• First time the game is played, X startsEach player alternate turns to put a mark in the board on any available slot
• The game ends when either one of the players matches three marks in a horizontal, vertical or diagonal row or there are no more moves available
• Once the game finishes, players are asked if they want to play again. If they do, the player who lost the previous match starts. In case of a draw, the player who did the second-to-last movement starts

Considerations

• Will the logic have to change if I want to play on a N x N board instead of the original 3 x 3?
• Gem are supposed to be used by other programmers so they need to be well documented and tested

Milestones

Required

-Create the game logic - Create the gem that contains that logic and verify that can be used correctly - Create terminal interface

This are not required but nice to have

Create GUI interface (Shoes or Gosu) Create web app Create API

Tic Tac Toe

Rules

• Two players represented with X and O
• First time the game is played, X startsEach player alternate turns to put a mark in the board on any available slot
• The game ends when either one of the players matches the size number marks in a horizontal, vertical or diagonal row or there are no more moves available
• Once the game finishes, players are asked if they want to play again. If they do, the player who lost the previous match starts. In case of a draw, the player who did the second-to-last movement starts

How to play

Instalation

Execute the next command for install it:

$ bundle exec rake install

This create a folder called pkg where will our .gem file be found.

Can you execute:

$ gem list --local

for check the successful installation.

Finally, we only require the gem with the next line on your proyect:

require "TicTacToe" 

or start with irb.

Usage

To use this gem you must first create two instances of player, each instance receives as parameter a hash with 2 values:

• mark: the simbol with which it will be represented on the board.
• name: the name of the player.

Example of instance:

TicTacToe::Player.new({mark: "X", name: "Oswaldo"})

After of that, you must create one instance of game for play, this instance will be receive two params:

• param1: one array with two instances of players.
• param2: the size of game board. (NOTE: this one can be NxN)

Once the innstance is done, you can indicate that you directly access to play method. Example of instance and play method:

TicTacToe::Game.new(playersArray,3).play

When you run the file where you use this gem you will see the board in the console.

Enjoy it! :)