Quick-cocos2d-x v3.3 SocketTCP链接(转)
Quick-Cocos2d-x v3.3里面提供了两种长连接WebSockets、SocketTCP,这里说一下SocketTCP的用法。
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local net = require( "framework.cc.net.init" ) local ByteArray = require( "framework.cc.utils.ByteArray" ) require( "framework.cc.utils.bit" ) |
-- 网络初始化,添加侦听函数
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function scnet.init( ) local time = net.SocketTCP.getTime() print( "socket time:" .. time ) local socket = net.SocketTCP. new () socket:setName( "HeroGameTcp" ) socket:setTickTime(1) socket:setReconnTime(6) socket:setConnFailTime(4) socket:addEventListener(net.SocketTCP.EVENT_DATA, scnet.receive) socket:addEventListener(net.SocketTCP.EVENT_CLOSE, scnet.tcpClose) socket:addEventListener(net.SocketTCP.EVENT_CLOSED, scnet.tcpClosed) socket:addEventListener(net.SocketTCP.EVENT_CONNECTED, scnet.tcpConnected) socket:addEventListener(net.SocketTCP.EVENT_CONNECT_FAILURE, scnet.error) scnet.socket = socket end |
--发送数据给服务器
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function scnet.send( msgid,data ) -- encodeData 此方法是根据需要发送的数据安装与服务器定义好的消息格式去write local _ba = scnet.encodeData(msgid,data) print( "scnet.send _ba" ,_ba:getLen()) if not _ba then print( "发送数据出错了......." ,msgid) return end _ba:setPos(1) local byteList = {} local byteCount = 0 -- 把数据读出来,加密 for i=1,#_ba._buf do local tmpBit = string.byte(_ba:readRawByte()) byteCount = byteCount + tmpBit tmpBit = bit.band(tmpBit + 80,255) tmpBit = bit.band(bit.bnot(bit.band(tmpBit,255)),255) byteList<i> = tmpBit end byteCount = byteCount % 256 -- 最后再组成一个新的ByteArray local result = ByteArray. new (ByteArray.ENDIAN_BIG) result:writeShort(_ba:getLen() + 3) result:writeByte(byteCount) for i=1,#byteList do result:writeByte(byteList<i>) end -- 把数据发送给服务器 scnet.socket:send(result:getPack()) end |
-- 根据messageid来确定数据格式
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function scnet.encodeData( msgid,data ) if msgid then local ba = ByteArray. new (ByteArray.ENDIAN_BIG) local fmt = InfoUtil:getMsgFmt(msgid) -- 此处为读取消息格式 看下面的MessageType里面会有定义 ba:writeStringUShort( "token" ) -- 此处为用户token,没有就为 "" ,此处可以判断用户是否重新登陆啊等等....... for i=1,#fmt do scnet.writeData(ba,fmt<i>,data) end local baLength = ba:getLen() local bt = ByteArray. new (ByteArray.ENDIAN_BIG) bt:writeShort(baLength + 4) -- 2为message length 2为message type bt:writeShort(msgid) bt:writeBytes(ba) return bt end end |
-- write 数据
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function scnet.writeData( ba,msg_type,data ) local key = msg_type.key print( "scnet.writeData" , "key" ,key) if key and data[key] then local _type = msg_type[ "fmt" ] if type(_type) == "string" then if _type == "string" then ba:writeStringUShort(data[key]) elseif _type == "number" then ba:writeLuaNumber(data[key]) elseif _type == "int" then ba:writeInt(data[key]) elseif _type == "short" then ba:writeShort(data[key]) end else ba:writeShort(#data[key]) for k,v in pairs(data[key]) do for i=1,#_type do scnet.writeData(ba,_type<i>,v) end end end else print( "找不到对应的 key" ,msg_type.key,msg_type,data) end end |
-- 读取数据
-- 接收消息
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function scnet.receive( event ) local ba = ByteArray. new (ByteArray.ENDIAN_BIG) ba:writeBuf(event.data) ba:setPos(1) -- 有连包的情况,所以要读取数据 while ba:getAvailable() <= ba:getLen() do scnet.decodeData(ba) if ba:getAvailable() == 0 then break end end end |
-- 消息数据解析
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function scnet.decodeData( ba ) local len = ba:readShort() -- 读数据总长度 local total = ba:readByte() -- 一个用于验证的数子 local byteList = {} local tmpTotal = 0 for i=1,len - 3 do -- 去除前两个长度 local tmpBit = ba:readByte() local enByte = scnet.decodeByte(tmpBit) tmpTotal = tmpTotal + enByte byteList<i> = enByte end local result = ByteArray. new (ByteArray.ENDIAN_BIG) for i=1,#byteList do result:writeRawByte(string. char (byteList<i>)) end result:setPos(1) if (tmpTotal % 256) == total then scnet.decodeMsg(result) else print( "scnet.decodeData total error" ) end end |
-- 根据格式解析数据
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function scnet.decodeMsg( byteArray ) local rData = {} local len = byteArray:readShort() local msgid = byteArray:readShort() local roleString = byteArray:readStringUShort() local fmt = InfoUtil:getMsgFmt(msgid) for i=1,#fmt do scnet.readData(byteArray,fmt<i>,rData) end if rData[ "result" ] ~= 0 then print( "result handler is here " ,rData[key]) return else NetManager:receiveMsg(msgid,rData) end end -- readData function scnet.readData( ba,msg_type,data) local key = msg_type.key if key then data[key] = data[key] or {} local _type = msg_type[ "fmt" ] if type(_type) == "string" then if _type == "string" then data[key] = ba:readStringUShort() elseif _type == "number" then data[key] = ba:readLuaNumber() elseif _type == "int" then data[key] = ba:readInt() elseif _type == "short" then data[key] = ba:readShort() end if key == "result" then -- 当结果不为零的时候,说明有错误 if data[key] ~= 0 then print( "result handler is here " ,data[key]) return end end else local _len = ba:readShort() -- 读取数组长度 for i=1,_len do local tmp = {} for j=1,#_type do scnet.readData(ba,_type[j],tmp) end table.insert(data[key],tmp) end end else print( "找不到对应的 key scnet.readData" ,msg_type.key,msg_type,data) end end |
-- 数据解密
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function scnet.decodeByte( byte ) local tmp = bit.band(bit.bnot(bit.band(byte,255)),255) tmp = bit.band((tmp + 256 - 80),255) return tmp end |
消息格式
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-- 发送 MsgFmt[ "1001" ] = { { key = "list" , fmt = { { key = "id" ,fmt = "int" }, { key = "name" ,fmt = "string" }, { key = "level" ,fmt = "int" }, { key = "sex" ,fmt = "int" } } }, { key = "userid" ,fmt = "int" } } -- 返回 MsgFmt[ "5001" ] = { { key = "result" ,fmt = "int" }, { key = "list" , fmt = { { key = "id" ,fmt = "int" }, { key = "name" ,fmt = "string" }, { key = "level" ,fmt = "int" }, { key = "sex" ,fmt = "int" } } } } |
网络管理NetManager
管理网络的发送与接收
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-- 初始化 function NetManager:init( ) self._listenerList = {} scnet.init() scnet.connect(host,port) end -- 注册消息 -- 注册之后 接受到服务器消息之后进行广播,谁注册,谁相应 function NetManager:registerMsg( msgid,callBack ) self._listenerList[msgid] = self._listenerList[msgid] or {} local isExist = self:findCallBack(msgid,callBack) if not isExist then table.insert(self._listenerList[msgid],callBack) end end -- 移除注册消息 function NetManager:removeRegister( msgid,callBack ) if self._listenerList[msgid] then for k,v in pairs(self._listenerList) do if v == callBack then self._listenerList[msgid][k] = nil end end end end -- 发送消息 -- 整理数据发送给服务器 function NetManager:sendMsg( msgid,data ) scnet.send(msgid,data) end -- 接受消息 -- 派发事件(数据) function NetManager:receiveMsg( msgid,data ) if self._listenerList[msgid] then for k,v in pairs(self._listenerList[msgid]) do v(data) end end end function NetManager:findCallBack( msgid,callBack ) for k,v in pairs(self._listenerList[msgid]) do if v == callBack then return true end end return false end |
test
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-- 监听事件 function MainScene:onEnter() NetManager:registerMsg(MsgType.SC_LOGIN ,handler(self,self.receiveHandler)) end -- 移除坚挺 function MainScene:onExit() NetManager:removeRegister(MsgType.SC_LOGIN ,handler(self,self.receiveHandler)) end -- 发送数据,根据MsgFmt构造数据 local data = {} data.list = {} table.insert(data.list,{id = 1001,name = "小房" ,level = 1,sex = 1}) table.insert(data.list,{id = 1002,name = "小田" ,level = 11,sex = 2}) table.insert(data.list,{id = 1003,name = "2222" ,level = 21,sex = 1}) table.insert(data.list,{id = 1004,name = "3333" ,level = 31,sex = 2}) data.userid = 10001 NetManager:sendMsg(MsgType.CS_LOGIN,data)
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http://cn.cocos2d-x.org/tutorial/show?id=2604
http://zengrong.net/post/2020.htm