套接字IO-Socket.emit发送到所有客户端

Question

I am creating a game using socket io. A player connects like this:

var playerName = document.getElementById("name").value;
socket.emit('setup player', {
    name : playerName
});

Then on the server, the player is setup and his information is sent back to the client:

function onSetupPlayer(data) {
    ...
    var newPlayer = new Player(x, y, color, data.name,
        this.id, scale);
    socket.emit('setup game', {
        localPlayer : newPlayer
    });
    ...
    sockets[this.id] = socket;
}

The following call:

socket.emit('setup game', {
        localPlayer : newPlayer
});

Should send the setup data only back to the client that requested the setup to be done originally. However the setup call gets send to everyone in the lobby.

Could this have anything to do with the fact that I am using localhost to test it? I am also testing it on the same machine by using different tabs. If this is what is causing the issue, is there a way to resolve it? Since this is pretty annoying when testing my game.

EDIT: Initialization:

var express = require('express');
var app = express();
var http = require('http').Server(app);
var socket = require('socket.io')(http);
var path = require('path');
var io = require('socket.io')(80);
...
var setEventHandlers = function() {
    socket.sockets.on("connection", onSocketConnection);
};

Listening for connection:

function onSocketConnection(client) {
    ...
    client.on("setup player", onSetupPlayer);
    ...
};

And on the client side I have this:

var setEventHandlers = function() {
    socket.on("setup game", onSetupGame);
     ...
}

Answer 1

socket.emit send event to everyone excepts this. To send data back to this user try

io.to(socket).emit()