This is a Tic Tac Toe game that I wrote for a Senior PHP developer interview.
The project was created using CodeIgniter 3.1.3, bootstrap 4.0.0-alpha.6 and Doctrine 2 running on PHP 7.1.0 and Percona-Server 5.7 (Mysql Fork). Please stay away from IE... I tested it quickly on Firefox and it seemed fine. I used the latest build of Chrome while developing.
Using the Codeigniter framework (http://www.codeigniter.com/), build a tic tac toe game with the following features:
Take a name for the two players and begin a new game.
Use basic styling for the grid using css.
Allow the players to click the grid to make their move, and highlight when the game is finished.
Store the results of each match in a MySQL database, and have a page to view the results.
Use the bootstrap framework to make it responsive in the following ways:
- On mobile device, make the game full screen.
- On desktop browser have the results of the last 5 matches on the right hand side – do this in bootstrap, not php.
If you have more time, then please look at making an option of playing against the computer
You will need the following properly installed on your computer.
$ git clone https://github.com/MetaphoricalSheep/interviews.TicTacToe.git ./TicTacToe$ cd TicTacToe/application$ php composer.phar update$ vim config/database.php$ echo "create database TicTacToe" | mysql -u <user> -p<password>$ php cli-doctrine.php orm:schema-tool:create$ php cli.php seed:types$ php cli.php seed:marvin
- Composer complains about bcmath or zip ->
$ sudo apt install php-bcmath php-zip - cli-doctrine.php complains about missing drivers ->
$ sudo apt install php-mysql - cli-doctrine complains about Parse error:
Use PHP 7.1
Php 7.1 allows for nullable return types, you'll spot something like public function SomeFunction(string arg) : ?SomeClass in the code. The ? before SomeClass tells the interpreter that SomeClass might be null.
$ cd path/to/project/TicTacToe/public$ php -S [ip]:8000- Open Chrome and point it to [ip]:8000
- The results page was a rush job. I missed it in the spec. Added it quickly as an afterthought. It needs refining.
- Marvin (the AI) always plays on the most difficult level at the moment. I need to add different difficulty levels.
- The history side bar hides on smaller screen sizes, but that is about the only thing that is currently responsive on this project.
- There are no unit tests
- Exception handling is hit and miss, more miss than hit.
- Marvin takes his time to make his first move, despite having a brain the size of a planet. He might just be depressed. Some refactoring is needed to speed things up.
I was busy implementing a multiplayer mode, but I ran out of time. The idea is to have both players' browsers connect to a pub/sub which will feed them updates as needed. The GameApi layer (and frontend) is the only thing that needs to change to facilitate this.