Board Games

Three board games in C++, each written against one shared abstract interface, then integrated behind a single menu. Assignment 3 for the OOP course (Dr. El-Ramly) at FCAI, Cairo University.

The abstraction

Every game implements the same pure-virtual Board contract, so the game manager never knows which game it is running:

class Board {
public:
   virtual bool update_board(int x, int y, char mark) = 0;
   virtual bool is_winner() = 0;
   virtual bool is_draw() = 0;
   virtual void display_board() = 0;
   virtual bool game_is_over() = 0;
};

Player and RandomPlayer sit alongside it, so a human, a random mover or an AI are interchangeable in the same slot.

The games

Game	Board	AI opponent
Four in a Row	6×7, gravity-fed columns	Minimax, depth 7, alpha-beta pruned
Pyramid X-O	3 rows of 1, 3 and 5 cells	Minimax
5×5 Tic-Tac-Toe	5×5 play area, padded 9×9 array	Random mover

Four in a Row

The strongest of the three opponents. C4_AI searches seven plies with minimax and alpha-beta pruning, scoring non-terminal positions by scanning every direction from each cell and weighting runs of adjacent pieces, so it blocks threats and builds its own rather than only reacting to an immediate win.

Build

Each game compiles on its own, and TASK3 builds all three behind one menu. Main_App.cpp includes the other translation units directly, so compile only the app file:

g++ -std=c++17 "TASK3-20220450-20220032-20220456/Main_App.cpp" -o boardgames
./boardgames

Or one game on its own:

cd "Four in a Row" && g++ -std=c++17 C4_App.cpp -o c4 && ./c4

Layout

5x5 tic tac toe/    5×5 X-O, plus the shared BoardGame_Classes.hpp
Four in a Row/      Connect Four with C4_AI (minimax + alpha-beta)
Pyramid_XO/         Pyramid X-O with AI_player
TASK3-.../          all three integrated behind one menu

Credits

A three-person project. Each of us owned one game:

Game	Author
Four in a Row	Amr Mohamed El-Sheriey — @AmrMsCLL
Pyramid X-O	Ahmed Mohamed Saber
5×5 Tic-Tac-Toe	Medhat Ahmed