Project Title: Multiplayer Tic-Tac-Toe Game (Java Version)

Overview:

The Multiplayer Tic-Tac-Toe game is a two-player version of the classic 3x3 grid game, where each player takes turns marking X or O on the grid. The first player to align three of their symbols in a row, column, or diagonal wins the game. In the multiplayer version, players can either play on the same device (local multiplayer) or over a network (online multiplayer using sockets).

Core Gameplay Features:

• 2-Player Support: Two users can play either on the same machine (local) or on different machines via network connection.
• Turn-Based Play: Alternates between Player X and Player O each turn.
• Win/Draw Detection: The game checks after each move for a win or draw condition.
• Graphical Interface: A simple GUI using buttons or grid layout to represent the board.
• Restart Option: Ability to restart the game after each match.

Technologies Commonly Used:

• Java with:
• Swing or JavaFX (for GUI)
• Java Sockets (ServerSocket and Socket) – for online multiplayer
• Multithreading – to handle real-time communication in networked play

How It Works:

Local Multiplayer Version:

1. Game starts with an empty 3x3 board.
2. Player 1 clicks a cell to place 'X', then Player 2 places 'O'.
3. The board updates with each move, and win/draw is checked after every turn.
4. The game declares a winner or a draw, then offers a replay option.

Online Multiplayer Version:

1. One player acts as the server, the other connects as a client using IP and port.
2. Moves are sent across the network using input/output streams.
3. Both boards are synchronized in real-time, showing the same state.
4. Turn control and validation are handled to avoid simultaneous moves.

Learning Objectives:

• Implementing turn-based logic and state management
• Creating a GUI for interactive board games
• Working with Java networking (sockets) to build multiplayer functionality
• Handling real-time input/output and ensuring synchronization between players
• Practicing OOP design with classes for Board, Player, and Game Logic

Game Logic Breakdown:

• Board Class: Maintains the 3x3 grid and checks for game end conditions
• Player Class: Represents player info and symbols
• Game Class: Controls the game flow, turn switching, and game status
• Networking (optional): Handles server-client connection, message passing, and syncing moves