使用插座IO

Question

我有一個使用socket.io將數據發送給用戶節點JS服務器將數據發送到特定的用戶。到目前爲止，我可以向請求它的用戶或所有用戶發送數據。但我想知道一種將數據發送給其他人請求的特定用戶的方法。在這種情況下，它是一個您可以主持遊戲的網站。所以當另一個用戶想加入時，我想發送數據給託管該遊戲的人告訴他們這個用戶想加入。這裏是我的代碼

exports.Server = Server = function() 
{ 
this.userId = 1; 
this.userName = "Guest"; 
}; 

Server.prototype.initialise = function(port) 
{ 
//Create the server using the express module 
this.server = http.createServer(app); 

//Declare the 'public' folder and its contents public 
app.use(express.static('public')); 

//Listen to any incoming connections on the declared port and start using websockets 
this.server.listen(port); 
this.startSockets(); 
this.em = new events(); 

consoleLog('SERVER', 'Running on port: ' + port); 
}; 

Server.prototype.startSockets = function() 
{ 
//When a user connects to the server on the 'game' socket 
this.socket = io.listen(this.server); 

this.socket.of('game').on('connection', function(user) 
    { 
     //Set their usedId and username 
     user.userId = this.userId; 
     user.userName = this.userName + " " + this.userId; 

     //Increment the user id by 1 so each user with get a unique id 
     this.userId++; 

     //Send a response back to the client with the assigned username and user id and initialise them 
     user.emit('response', user.userId, user.userName); 
     this.em.emit('initialiseUser', user.userId, user.userName); 

     //Tell the server to log the user that has just connected 
     consoleLog('SERVER', user.userName + ' has connected. ID: ' + user.userId) 

     //Server listeners from the client 

     //If the user wants to host a game, take the game settings they requested 
     user.on('hostGame', function(boardSize, gameMode, gameNote) 
      {  
       //Tell the app to request a new hosted game with the users information and settings 
       this.em.emit('hostGame', user.userId, user.userName, boardSize, gameMode, gameNote); 
      } 
      .bind(this)); 

     //If the user wants to cancel the game they are hosting 
     user.on('cancelHostGame', function() 
      { 
       //Tell the app to request to cancel their game passing in the users information 
       this.em.emit('cancelHostGame', user.userId, user.userName); 
      } 
      .bind(this)); 

     user.on('joinGame', function(user.id, user.userName, opponentId) 
      {      
       //Need to tell the user with the opponent Id, that the user.id wants to join 
      } 
      .bind(this)); 

     //When a user disconnects 
     user.on('disconnect', function() 
      { 
       //Tell the app to request to cancel the game the user was hosting 
       this.em.emit('cancelHostGame', user.userId, user.userName); 

       //Tell the server who disconnected 
       consoleLog('SERVER', user.userName + ' has disconnected. ID: ' + user.userId) 
      } 
      .bind(this)); 
    } 
    .bind(this)); 

};

function updateGamesList(socket, hostedGames) 
{ 
//Emit the updateGameList function on the client and pass through the array of games being hosted 
socket.socket.of('game').emit('updateGameList', hostedGames); 
}; 

，這樣你們可以看到，當用戶點擊加入遊戲時，它把對手的id這就是託管他們想加入遊戲。如果我做user.emit它會去加入的人，如果我做em.emit它會去每個用戶在網站上。我將如何將它引導到該特定ID的用戶？

Answer 1

發送確認到主機的遊戲，你首先要管理對象包含創建總遊戲，以及對象的每個值將包含一個數組，其中會有用戶對象連接到遊戲中，使對象結構看起來，

var object={}; 
object={ game1 : [object-user1,object-user2,object-user3], 
     game2 : [object-user1,object-user2,object-user3], 
     game3 : [object-user1,object-user2,object-user3] 
}; 

現在，當用戶創建房間的對象將被存儲在在房間的對象，這是可以做到如下

var object={}; 
io.on('connection', function(user){ 
    user.on('createroom',function(game){ 
     var array=[]; 
     array[0]=user; 
     object[game]=array 
     socket.join(data[0]); 
     socket.emit('createres', data[0]); 
    }); 
}); 

現在你有一個包含遊戲和相應的數組對象其中包含列表

連接的遊戲，現在，如果你想發送確認主機遊戲，如下圖所示，你可以做的用戶， 的

user.on('joingame',function(game){ 
    data.game=game; 
    data.user=user; 
    object[game][0].emit("confirmjoin",data); 
}); 

上面的代碼是用於服務器端，在這裏上面的代碼中我們發送確認誰創造了遊戲用戶，這裏object [game] [0]將返回特定遊戲的第一個數組元素，所以我們可以使用該值調用客戶端;

下面是客戶端代碼，

user.on('confirmjoin',function(data){ 

    if(//allow user to join){ 
     user.emit('allowtojoin',data); 
    } 
}); 

上面的代碼是用於客戶端，在上面的代碼中，如果遊戲主機要允許加入的用戶，它會檢查條件，它會發出到服務器「allowjoin」送用戶對象，

這裏是服務器端的代碼，它會聽參加比賽，

user.on('allowjoin',function(data){ 
    data.user.join(data.game); 
}); 

現在你server.js文件將conatain像

var object={}; 
 
io.on('connection', function(user){ 
 
    user.on('createroom',function(game){ 
 
     var array=[]; 
 
     array[0]=user; 
 
     object[game]=array 
 
     socket.join(data[0]); 
 
     socket.emit('createres', data[0]); 
 
    }); 
 
    user.on('joingame',function(game){ 
 
     data.game=game; 
 
     data.user=user; 
 
     object[game][0].emit("confirmjoin",data); 
 
    }); 
 
    user.on('allowjoin',function(data){ 
 
     data.user.join(data.game); 
 
    }); 
 
});

希望這將幫助！