Tic-Tac-Toe Game
An interactive Tic-Tac-Toe game with AI opponent and multiplayer capabilities.
Project Overview
The Tic-Tac-Toe Game is a modern implementation of the classic game with advanced features. It offers both single-player mode against an AI opponent with adjustable difficulty levels and multiplayer mode for playing with friends online. The game features a sleek, responsive interface with animations and sound effects for an engaging user experience.
Key Features
- Single-player mode with three AI difficulty levels
- Real-time multiplayer functionality
- Game history and statistics tracking
- Customizable game board themes
- Responsive design for all devices
- Sound effects and animations
Technical Implementation
The game is built using React for the frontend with custom hooks for game state management. The AI opponent uses the minimax algorithm with alpha-beta pruning for optimal move selection, with different depth levels corresponding to difficulty settings.
For multiplayer functionality, the game uses Socket.io to establish real-time connections between players. Game state is synchronized across clients, and a matchmaking system pairs players based on skill level. The backend is built with Node.js and Express, with MongoDB for storing user profiles and game statistics.
Code Snippet
// AI move calculation using minimax algorithm
function getBestMove(board, player) {
// Terminal states check
if (checkWinner(board) === 'X') return { score: -10 };
if (checkWinner(board) === 'O') return { score: 10 };
if (getAvailableMoves(board).length === 0) return { score: 0 };
const availableMoves = getAvailableMoves(board);
const moves = [];
// Try each available move
for (let i = 0; i < availableMoves.length; i++) {
const move = {};
move.index = availableMoves[i];
// Set the empty spot to the current player
board[availableMoves[i]] = player;
// Collect the score from the minimax call
if (player === 'O') {
const result = getBestMove(board, 'X');
move.score = result.score;
} else {
const result = getBestMove(board, 'O');
move.score = result.score;
}
// Reset the spot to empty
board[availableMoves[i]] = null;
// Push the move object to the array
moves.push(move);
}
// Find the best move
let bestMove;
if (player === 'O') {
let bestScore = -Infinity;
for (let i = 0; i < moves.length; i++) {
if (moves[i].score > bestScore) {
bestScore = moves[i].score;
bestMove = i;
}
}
} else {
let bestScore = Infinity;
for (let i = 0; i < moves.length; i++) {
if (moves[i].score < bestScore) {
bestScore = moves[i].score;
bestMove = i;
}
}
}
return moves[bestMove];
}