Question

我正在使用node.js和socket.io进行多人帆布游戏，我的节点服务器在建立客户端握手后立即抛出大量相同的错误。

这是来自控制台的复制/粘贴：

    info  - handshake authorized GeDlfwyEdfEIJXGvoZjG
    new player connected: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG
22:3:26 - (onMovePlayer) Player not found: GeDlfwyEdfEIJXGvoZjG

您可以在此处查看完整代码：http://github.com/storrdev/delta-wing

基本上我遇到一个问题，即server.js（节点脚本）的节点控制台吐出“（OnMovePlayer）未找到播放器：连接ID ”其中 CONNECTION ID 是连接客户端的ID。

当服务器从客户端收到“移动播放器”消息并且无法在服务器上存储的播放器阵列中找到播放器的id时，我写了当调用onMovePlayer（）函数时显示的错误消息。

我无法理解的是服务器甚至不应该调用onMovePlayer（）函数，直到客户端向服务器发出“移动播放器”消息，并且客户端不应该发出“移动播放器”建立连接之前的消息，它向服务器发出“新播放器”消息。

为什么这么多次抛出这个错误？ socket.emits发送的是无序的吗？我很困惑。

我知道这是令人费解的，所以我感谢任何帮助或想法。老实说，我希望打出这种情况可以帮助我弄明白，但遗憾的是它没有。

Answer 1

game.js中的Game.update存在一些问题，它似乎是递归地调用自己。

if (Game.players[0].update()) {
    //This seems to execute recursively.
    socket.emit('move player', {x: Game.players[0].getX(), y: Game.players[0].getY(), angle: Game.players[0].getAngle()});
    Game.background.update(Game.players[0].getX(), Game.players[0].getY());
}

我通过

检查了一下

count=0;
if (Game.players[0].update()) {
    socket.emit('move player', {x: Game.players[0].getX(), y: Game.players[0].getY(), angle: Game.players[0].getAngle()});
    count +=1;
    console.log(count);
    Game.background.update(Game.players[0].getX(), Game.players[0].getY());
}

通过查看代码并判断它是否是正确的行为，我无法理解逻辑。但它不断向服务器发送move player个请求。

被修改

经过一些测试后，我发现问题是由于同步造成的。

当客户端加载页面时，它会立即开始发送move player，甚至在它连接到服务器并运行onSocketConnected之前。您在错误控制台上获得的行数等于在控制台中显示Connected to socket server之前发送的消息数。试试我用来调试的代码。

因此，它打破了客户端在建立连接之前不应发出“移动播放器”的假设。希望这会对你有所帮助。

Socket.io多次触发回调函数

1 个答案:

被修改