Socket.io每2个连接创建一个对象

Question

我正在尝试制作一个游戏，其中每2个socket.io连接都放到一个“游戏” /房间中。我设法将两个连接放到一个房间里，但我也想为这两个连接放一个游戏对象。但是我的代码基本上为每个连接创建两个。

//My Class     
class Game {
  constructor() {
    this.players = [];
    this.nextPlayer = [];

  }
  //...My Methods go here 
}

这是给我带来麻烦的部分。

io.on('connection', function (socket) {

  //Puts every 2 connections into 1 room together
  if (io.nsps['/'].adapter.rooms["room-" + roomno] && io.nsps['/'].adapter.rooms["room-" + roomno].length > 1) roomno++;
  socket.join("room-" + roomno);
  io.sockets.in("room-"+roomno).emit('connectedToRoom', "You are in room no. "+roomno);

  if (io.nsps["/"].adapter.rooms["room-1"].length === 2) {
    //I think the problem is here it creates a new Game() for every connection
    //I would like to have only one game object for every 2 connections
    let game = new Game();
    game.players = Object.keys(io.nsps["/"].adapter.rooms["room-1"].sockets);
    game.nextPlayer = Object.keys(io.nsps["/"].adapter.rooms["room-1"].sockets)[0];

    socket.on("fieldMarked", (data) => {
      //This is different based on which client sent the "fieldMarked"
      console.log(game.nextPlayer);
    })
  }
});