How can i listen an event in a specific room in socket.io

Question

Hello Every I am building an online game where two users can connect in a lobby and play game basically the error is i cannot listen on event in the server side in the specific room Here is the code

const MAX_USERS_PER_LOBBY = 2;
let lobbies = [];

io.on('connection', (socket) => {
    console.log('A user connected');

    // Find a lobby with space for the user, or create a new lobby
    let lobby = lobbies.find((lobby) => lobby.users.length < MAX_USERS_PER_LOBBY);
    if (!lobby) {
        lobby = {
            id: lobbies.length + 1,
            users: []
        };
        lobbies.push(lobby);
    }

    // Add the user to the lobby
    lobby.users.push(socket.id);
    socket.join(`lobby-${lobby.id}`);

    console.log(`User ${socket.id} joined lobby ${lobby.id}`);

    // Start the game if the lobby is full
    if (lobby.users.length === MAX_USERS_PER_LOBBY) {
        io.to(`lobby-${lobby.id}`).emit('game_start');
        console.log(`Game started in lobby ${lobby.id}`);
        // Add event listeners for sending and receiving data
        socket.on('send_data', (data) => {
            console.log(`Received data from user ${socket.id} in lobby ${lobby.id}:`, data);
        socket.to(`lobby-${lobby.id}`).emit('receive_data', data);
        });
        socket.to(`lobby-${lobby.id}`).emit('receive_data', "welcome");
    }

    socket.on('disconnect', () => {
        console.log(`User ${socket.id} disconnected`);
        // Remove the user from the lobby
        lobby.users = lobby.users.filter((userId) => userId !== socket.id);
        // If the lobby is now empty, remove it
        if (lobby.users.length === 0) {
            lobbies = lobbies.filter((lobby) => lobby.id !== lobby.id);
            console.log(`Lobby ${lobby.id} removed`);
        }

    });
});

I want to know how can i listen an event on the server side for the specific room

How can i listen an event in a specific room in socket.io

0 Answers0