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45 lines
1.1 KiB
45 lines
1.1 KiB
var app = require("http").createServer(handler);
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var io = require("socket.io")(app);
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var fs = require("fs");
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function handler(req, res){
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var html = fs.readFileSync("index.html", "utf8");
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res.setHeader("Content-Type", "text/html");
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res.setHeader("Content-Length", Buffer.byteLength(html, "utf8"));
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res.end(html);
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}
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app.listen(80);
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io.on("connection", function(socket){
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socket.on("line", function(msg){//画线
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//向客户端发命令
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msg.name = "line";
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msgs.push(msg);
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io.sockets.emit("message", msg);
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});
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socket.on("text", function(msg){//文字
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msg.name = "text";
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msgs.push(msg);
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io.sockets.emit("message", msg);
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});
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socket.on("eraser", function(msg){//橡皮
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msg.name = "eraser";
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msgs.push(msg);
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io.sockets.emit("message", msg);
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});
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socket.on("load", function(msg){//从头画
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socket.emit("load", {
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name : "load",
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msgs : msgs
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});
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});
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socket.on("clear", function(msg){
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msgs.length = 0;
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io.sockets.emit("message", {
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name : "clear"
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});
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});
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});
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var msgs = [];
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