netease / treasures Goto Github PK

想了解下玩家移动的相关代码，然后。。。
msgHandler.js看到
// Handle move message
pomelo.on('onMove', function(data) {
var path = data.path;
var entity = app.getCurArea().getEntity(data.entityId);
if (!entity) {
console.error('no character exist for move!' + data.entityId);
return;
}

    var sprite = entity.getSprite();
    var sPos = sprite.getPosition();
    sprite.movePath([sPos, data.endPos]);
  });

这只是注册一个onMove，猜测是服务器端广播一个玩家的移动时所调用，所以在服务器端playerHandler中找到代码：
/**

• Player moves. Player requests move with the given movePath.

• Handle the request from client, and response result to client
  *

• @param {Object} msg

• @param {Object} session

• @param {Function} next

• @api public
  */
  handler.move = function(msg, session, next) {
  var endPos = msg.targetPos;
  var playerId = session.get('playerId');
  var player = area.getPlayer(playerId);
  if (!player) {
  logger.error('Move without a valid player ! playerId : %j', playerId);
  next(new Error('invalid player:' + playerId), {
  code: consts.MESSAGE.ERR
  });
  return;
  }

  var target = area.getEntity(msg.target);
  player.target = target ? target.entityId : null;

  if (endPos.x > area.width() || endPos.y > area.height()) {
  logger.warn('The path is illigle!! The path is: %j', msg.path);
  next(new Error('fail to move for illegal path'), {
  code: consts.MESSAGE.ERR
  });

  return;
  }

  var action = new Move({
  entity: player,
  endPos: endPos,
  });

  if (area.timer().addAction(action)) {
  next(null, {
  code: consts.MESSAGE.RES,
  sPos: player.getPos()
  });

  area.getChannel().pushMessage({route: 'onMove', entityId: player.entityId, endPos: endPos});
  }
  };
  其中area.getChannel().pushMessage({route: 'onMove', entityId: player.entityId, endPos: endPos});正是广播移动的代码。既然要触发handler.move，客户端必然会调用这个方法，然后在clientManager.js中找到
  function pick(args) {
  var targetId = args.id;
  var entity = app.getCurArea().getEntity(targetId);

  if (entity.type === EntityType.TREASURE) {
  pomelo.notify('area.playerHandler.move', {targetPos: {x: entity.x, y: entity.y}, target: targetId});
  }
  }

然后exports.pick = pick; pick又被公开出去，然后在componentAdder.js中找到调用pick的
var eventAction = function (event, node) {
if (event.type === 'mouseClicked') {
clientManager.pick({id: node.id});
}
};

调用eventAction的addComponentToEntity
/**
* add mouseClick component to entity
* @param {Object} entity
*/
var addComponentToEntity = function(entity) {
//add mouseButtonEvent to entities
var clickComponentEntity = new MouseButtonEventComponent({
pipe: area.gLevel.sysPipe(),
decider: area.scene.queryDecider('mouseButtonDecider'),
callback: eventAction
});
var node = entity.getSprite().curNode;
node.addComponent('mouseButtonEventComponent', clickComponentEntity);
};
和
this.addComponentTo = function(entity) {
addComponentToEntity(entity);
};

然后又把ComponentAdder公开出去
module.exports = ComponentAdder;
然后在app.js中看到 var ComponentAdder = require('componentAdder');
但是却没有任何调用，这样一来整个流程的源头就没有了，迷茫。。。

这个demo想说这个demo对于我这种初学者相当好，文档也比以前的给力，嗯，感谢一下网易。
然后今晚在文档的帮助下对源代码小小的分析了一下，基本都能看的懂，但是还是遇到了一些疑问。我看的时候记录了下来，请高手解答：
• Main.js
o //主动调用main函数 ---------在哪被调用，只是公开main出去啊？
o exports.main = main;
o
• next(null, {code: Code.FAIL}); 对应的next在哪 和node.js的next是否一样，一样的话方法名应该一样

• dispatcher.js
o var index = Math.abs(crc.crc32(uid)) % connectors.length;
o return connectors[index];
o 猜测其功能是根据uid和connectors服务器的个数将其分派到其中一个connectors服务器具体逻辑不懂

• Main.js
o pomelo.disconnect();为什么要中断连接

• entryHandler.js
o session api找不到，请大神不要见笑--！

o area.js中exp.addEntity方法getChannel().add(e.id, e.serverId);将玩家这样加入到channel中后，怎么广播channel中所有的玩家更新，找不到执行channel.pushMessage({route: 'addEntities', entities: added});这句代码的地方。貌似没有执行entityUpdate方法

浪费时间啊

使用bearcat，日志文件名称变成 pomelo-undefined.log rpc-log-undefined.log 不同服务的日志写到了一个文件里

我把package.json 改为 0.4.1 然后运行。。

进入场景以后，尝试移动人物，人物走了几步路就黑屏了，查看日志都是报以下的错误。

[2013-06-05 05:50:22.427] [INFO] [default] - �[33m[2013-06-05 05:50:22.426] [WARN] console - �[39mencode msg failed! key : "rankUpdate", msg : {"route":"rankUpdate","entities":[]}

var crc = require('crc');

module.exports.dispatch = function(uid, connectors) {
var index = Math.abs(crc.crc32(uid)) % connectors.length;
return connectors[index];
};

crc.crc32(uid) 返回的是十六进制的字符串，应该写成parseInt(crc.crc32(uid),16)

。

var index = Math.abs(parseInt(crc.crc32(uid)),16) % connectors.length;这个是不是写错了,有的用户名输进去点开始游戏无反应，应该改为
module.exports.dispatch = function(uid, connectors) {
var index = Math.abs(parseInt(crc.crc32(uid),16)) % connectors.length;
return connectors[index];
};

對於master服務器，我用這個方式啟動可以用node.js自帶的debugger調試:
node debug /var/devil/wsp/node/treasures-master/game-server/app.js env=development
但對於在master中啟動的其他服務器，例如connector，可以如何調試呢？
我試過在master啟動完所有服務器進程了，kill其中一個connector進程，然後再用上面的啟動方式手工啟動被kill掉的進程，但啟動完後會拋以下錯誤：
< info: socket.io started
< Caught exception: Error: listen EADDRINUSE
< at errnoException (net.js:769:11)
< at Server._listen2 (net.js:909:14)
< at listen (net.js:936:10)
< at Server.listen (net.js:985:5)
< at Object.exports.listen (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/node_modules/socket.io/lib/socket.io.js:74:12)
< at pro.listen (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/node_modules/pomelo-rpc/lib/rpc-server/acceptors/ws-acceptor.js:29:21)
< at pro.start (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/node_modules/pomelo-rpc/lib/rpc-server/gateway.js:42:17)
< at pro.start (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/lib/components/remote.js:46:15)
< at Application._optComponents (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/lib/application.js:384:19)
< at async.eachSeries.iterate (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/node_modules/async/lib/async.js:123:13)

详细的错误提示如下：
[2014-04-18 14:41:19.767] [INFO] [default] - [2014-04-18 14:41:19.766] [ERROR] console - Caught exception: TypeError: Cannot read property 'host' of undefined
at Handler.queryEntry (/home/hongshuai.yuan/nodejs_work/pomelo/treasures/game-server/app/servers/gate/handler/gateHandler.js:29:37)
at Service.handle (/home/hongshuai.yuan/nodejs_work/pomelo/treasures/game-server/node_modules/pomelo/lib/common/service/handlerService.js:34:30)
at handle (/home/hongshuai.yuan/nodejs_work/pomelo/treasures/game-server/node_modules/pomelo/lib/server/server.js:219:25)
at next (/home/hongshuai.yuan/nodejs_work/pomelo/treasures/game-server/node_modules/pomelo/lib/common/service/filterService.js:50:7)
at Service.beforeFilter (/home/hongshuai.yuan/nodejs_work/pomelo/treasures/game-server/node_modules/pomelo/lib/common/service/filterService.js:65:3)
at beforeFilter (/home/hongshuai.yuan/nodejs_work/pomelo/treasures/game-server/node_modules/pomelo/lib/server/server.js:116:8)
at doHandle (/home/hongshuai.yuan/nodejs_work/pomelo/treasures/game-server/node_modules/pomelo/lib/server/server.js:232:3)
at pro.handle (/home/hongshuai.yuan/nodejs_work/pomelo/treasures/game-server/node_modules/pomelo/lib/server/server.js:71:5)
at Component.handle (/home/hongshuai.yuan/nodejs_work/pomelo/treasures/game-server/node_modules/pomelo/lib/components/server.js:54:15)
at handleMessage (/home/hongshuai.yuan/nodejs_work/pomelo/treasures/game-server/node_modules/pomelo/lib/components/connector.js:206:15)

When i try to start web-server with" pomelo start" command, i have this error :

M:\Tiry\GitHub\treasures\game-server\node_modules\pomelo-logger\node_modules\log
4js\lib\date_format.js:26
.replace(/y{1,4}/g, vYear)
^
RangeError: Maximum call stack size exceeded

0.2 $ -1 tresure

在一个干净的环境，git clone这个工程下来后，发现客户端的消息跟gate和connector都能通信，但是客户端发消息到area服务器的时候就没响应了，后来发现是pomelo的版本太低了，升级到高版本的pomelo后，功能一切正常。

修改文件：game-server/package.json：
pomelo的版本修改成如下，就可以了。
"pomelo": "~0.8.0"

I've been going through the code and don't understand where you getting this variable from.

I haven't seen in it anywhere else in the code.

Reference: https://github.com/NetEase/treasures/blob/master/game-server/app/util/routeUtil.js#L4

Also 'session.frontendId' is set when? Is there any documentation about these? I could not find it in API doc.

the generated logs in the v0.3 treasures:
总计 60
-rw-r--r-- 1 linzy root 0 03-14 17:03 con-log-[serverId].log
-rw-r--r-- 1 linzy root 0 03-14 17:03 crash.log
-rw-r--r-- 1 linzy root 0 03-14 17:03 forward-log-[serverId].log
-rw-r--r-- 1 linzy root 4783 03-14 17:03 node-log-[serverId].log
-rw-r--r-- 1 linzy root 0 03-14 17:03 processInfo.log
-rw-r--r-- 1 linzy root 0 03-14 17:03 rpc-log-[serverId].log
-rw-r--r-- 1 linzy root 0 03-14 17:03 systemInfo.log

look at the file name like "forward-log-[serverId].log", it should be some name like forward-log-area-server-1.log, the config in log4js.json is changed in v0.3, is there something wrong?

啟動服務器拋錯：
< Caught exception: TypeError: Cannot read property 'id' of undefined
< at Server.start (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/lib/master/master.js:46:68)
< at EventEmitter.emit (events.js:96:17)
< at exportEvent (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/node_modules/pomelo-admin/lib/consoleService.js:279:14)
< at EventEmitter.emit (events.js:96:17)
< at Socket. (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/node_modules/pomelo-admin/lib/masterAgent.js:101:16)
< at Socket.EventEmitter.emit as $emit
< at SocketNamespace.handlePacket (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/node_modules/socket.io/lib/namespace.js:335:22)
< at Manager.onClientMessage (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/node_modules/socket.io/lib/manager.js:488:38)
< at WebSocket.Transport.onMessage (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/node_modules/socket.io/lib/transport.js:387:20)
< at Parser. (/var/linzy/wsp/node/treasures-master/game-server/node_modules/pomelo/node_modules/socket.io/lib/transports/websocket/hybi-16.js:39:10)

調試發現：
在lordofpomelo中,lordofpomelo/game-server/node_modules/pomelo/node_modules/pomelo-admin/lib/masterAgent.js 第100行self.emit('register', record); emit的參數是record；
而在treasures同一文件同一行中：self.emit('register', msg.info); 返回的是msg.info，這個msg.info值為空，故拋出上述錯誤。

查了一下lordofpomelo及treasures兩項目依賴的pomelo-admin的package.json，發現原來兩個依賴的pomelo-admin的版本是不同的，前者為0.0.17,後者為0.1.0。

簡言之，treasures 0.0.1版本直接下載回來配置後其實是無法運行的。
希望版本更新時能增加簡要的說明，並修復之。