The goal of the game is align a sequence of 4 same pieces on a board. Each round, two players choose a column for place his piece and the piece fall the lowest the column. The winner is the first to realise an aligment of a sequence of 4 of his pieces in vertical, horizontal or diagonal. If the board is full, the game is a draw.
## Composition
The board size is defined by a height (columns) and width (lines). Each players (include AI) has a piece "O" or "X".
## Available mods
**Mod two players**
Two players can choose, each his round, the columns for place his pieces.
**Mod Random AI**
One player play with a random AI. It places his piece in a random column.
**Mod Smart AI**
One player play with a smart AI. It place his piece in a random column except if it can win on the next round or block the win of the player.
## How to play ?
For play, the user execute the program `./puissance4` with following parameters :
- The game mod (1 for random AI, 2 for smart AI and 3 for two players)
- The height (lines) of the board
- The width (columns) of the board.
When it's launched, the user or users must write the number of the colum who he chose when it's asked, and he presses the enter touch.
For launch automatic tests, the user must write `make test` in the terminal (he must to make sure he is in the program folder) and press enter.
For launch unit tests, the user must write `make unit tests`in the terminal (he must to make sure he is in the program folder) and press enter
