What is this?

Project I did as a part of Hyperskill course Kotlin Basics.

It's the game of Connect Four, where two players play to get 4 disks in line, colum or diagonal.

It's refactored version for testing State pattern.

How to run

When imported into IntelliJ IDEA it should just work. If not, Build -> Rebuild project.

Comment

It's my first standalone project, I still don't know what I'm doing with the language and build system.

Any comments, pull requests, issue tickets appreciated. I'm particularly interested in build improvement and tests.

Game session

Connect Four
First player's name:
John
Second player's name:
Doe
Set the board dimensions (Rows x Columns)
Press Enter for default (6 x 7)

Do you want to play single or multiple games?
For a single game, input 1 or press Enter
Input a number of games:

John VS Doe
6 X 7 board
Single game
 1 2 3 4 5 6 7
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
╚═╩═╩═╩═╩═╩═╩═╝
John's turn:
1
 1 2 3 4 5 6 7
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║o║ ║ ║ ║ ║ ║ ║
╚═╩═╩═╩═╩═╩═╩═╝
Doe's turn:
5
 1 2 3 4 5 6 7
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║o║ ║ ║ ║*║ ║ ║
╚═╩═╩═╩═╩═╩═╩═╝
John's turn:
2
 1 2 3 4 5 6 7
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║o║o║ ║ ║*║ ║ ║
╚═╩═╩═╩═╩═╩═╩═╝
Doe's turn:
3
 1 2 3 4 5 6 7
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║o║o║*║ ║*║ ║ ║
╚═╩═╩═╩═╩═╩═╩═╝
John's turn:
2
 1 2 3 4 5 6 7
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║o║ ║ ║ ║ ║ ║
║o║o║*║ ║*║ ║ ║
╚═╩═╩═╩═╩═╩═╩═╝
Doe's turn:
4
 1 2 3 4 5 6 7
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║o║ ║ ║ ║ ║ ║
║o║o║*║*║*║ ║ ║
╚═╩═╩═╩═╩═╩═╩═╝
John's turn:
2
 1 2 3 4 5 6 7
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║o║ ║ ║ ║ ║ ║
║ ║o║ ║ ║ ║ ║ ║
║o║o║*║*║*║ ║ ║
╚═╩═╩═╩═╩═╩═╩═╝
Doe's turn:
6
 1 2 3 4 5 6 7
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║ ║ ║ ║ ║ ║ ║
║ ║o║ ║ ║ ║ ║ ║
║ ║o║ ║ ║ ║ ║ ║
║o║o║*║*║*║*║ ║
╚═╩═╩═╩═╩═╩═╩═╝
Player Doe won
Game Over!