"Utilizing SocketIO in NodeJS to create a unique game mode emission

As a new socketIO user, I am working on a website with 2 game modes. Initially, my plan was to create separate scripts for each mode, but now I am considering consolidating everything into one script. Currently, my script emits data to all connected users, but I want to specifically target users in a certain array or group.

This is how I currently send data:

io.emit("updateTimeLeft", runTime);

My confusion lies in the fact that these events in my script broadcast to everyone. How can I isolate specific sockets to send data to?

I thought about saving users' sockets in an array and looping through them to send the necessary data, but I'm unsure if this approach will work. Any suggestions on a more effective solution?

node.jssocket.io

Answer №1

It's a good idea to utilize rooms (which is a feature provided by socket.io) for organizing different 'groups'.

Here's an example of how to use rooms:

  socket.join('myroom');

By doing this, you can now send events to all sockets that are part of 'myroom' like this:

io.to('myroom').emit('some event'):

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