Add new chat client example

examples/client_chat.js

@@ -0,0 +1,163 @@
+var readline = require('readline');
+var color = require("ansi-color").set;
+var mc = require('../');
+var states = mc.protocol.states;
+var util = require('util');
+
+var colors = new Array();
+colors["black"] = 'black+white_bg';
+colors["dark_blue"] = 'blue';
+colors["dark_green"] = 'green';
+colors["dark_aqua"] = 'cyan'
+colors["dark_red"] = 'red'
+colors["dark_purple"] = 'magenta'
+colors["gold"] = 'yellow'
+colors["gray"] = 'black+white_bg'
+colors["dark_gray"] = 'black+white_bg'
+colors["blue"] = 'blue'
+colors["green"] = 'green'
+colors["aqua"] = 'cyan'
+colors["red"] = 'red'
+colors["light_purple"] = 'magenta'
+colors["yellow"] = 'yellow'
+colors["white"] = 'white'
+colors["obfuscated"] = 'blink'
+colors["bold"] = 'bold'
+colors["strikethrough"] = ''
+colors["underlined"] = 'underlined'
+colors["italic"] = ''
+colors["reset"] = 'white+black_bg'
+
+var dictionary = {};
+dictionary["chat.stream.emote"] = "(%s) * %s %s";
+dictionary["chat.stream.text"] = "(%s) <%s> %s";
+dictionary["chat.type.achievement"] = "%s has just earned the achievement %s";
+dictionary["chat.type.admin"] = "[%s: %s]";
+dictionary["chat.type.announcement"] = "[%s] %s";
+dictionary["chat.type.emote"] = "* %s %s";
+dictionary["chat.type.text"] = "<%s> %s";
+
+var rl = readline.createInterface({
+    input: process.stdin,
+    output: process.stdout,
+    terminal: false
+});
+ 
+function print_help() {
+    console.log("usage: node minechat.js <hostname> <user> <password>");
+}
+ 
+if (process.argv.length < 5) {
+    console.log("Too few arguments!");
+    print_help();
+    process.exit(1);
+}
+ 
+process.argv.forEach(function(val, index, array) {
+    if (val == "-h") {
+        print_help();
+        process.exit(0);
+    }
+});
+ 
+var host = process.argv[2];
+var port = 25565;
+var user = process.argv[3];
+var passwd = process.argv[4];
+ 
+if (host.indexOf(':') != -1) {
+    port = host.substring(host.indexOf(':')+1);
+    host = host.substring(0, host.indexOf(':'));
+}
+ 
+console.log("connecting to " + host + ":" + port);
+console.log("user: " + user);
+console.log("passwd: " + Array(passwd.length).join('*'));
+ 
+var client = mc.createClient({
+    host: host,
+    port: port,
+    username: user,
+    password: passwd
+});
+ 
+client.on([states.PLAY, 0x40], function(packet) {
+    console.info(color('Kicked for ' + packet.reason, "blink+red"));
+    process.exit(1);
+});
+ 
+ var chats = [];
+ 
+client.on('connect', function() {
+    console.info(color('Successfully connected to ' + host + ':' + port, "blink+green"));
+});
+
+client.on('state', function(newState) {
+  if (newState === states.PLAY) {
+    chats.forEach(function(chat) {
+      client.write(0x01, {message: chat});
+    });
+  }
+})
+ 
+rl.on('line', function(line) {
+    if(line == '') {
+        return; 
+    } else if(line == '/quit') {
+        var reason = 'disconnect.quitting';
+        console.info('Disconnected from ' + host + ':' + port);
+        client.write([states.PLAY, 0x40], { reason: reason });	
+        return;
+    } else if(line == '/end') {
+        console.info('Forcibly ended client');
+        process.exit(0);
+        return;
+    }
+    if (!client.write([states.PLAY, 0x01], { message: line })) {
+      chats.push(line);
+    }
+});
+ 
+client.on([states.PLAY, 0x02], function(packet) {
+    var j = JSON.parse(packet.message);
+    var chat = parseChat(j, {});
+    console.info(chat);
+});
+
+function parseChat(chatObj, parentState) {
+  function getColorize(parentState) {
+    var myColor = "";
+    if ('color' in parentState) myColor += colors[parentState.color] + "+";
+    if (parentState.bold) myColor += "bold+";
+    if (parentState.underlined) myColor += "underline+";
+    if (parentState.obfuscated) myColor += "obfuscated+";
+    if (myColor.length > 0) myColor = myColor.slice(0,-1);
+    return myColor;
+  }
+  if (typeof chatObj === "string") {
+    return color(chatObj, getColorize(parentState));
+  } else {
+    var chat = "";
+    if ('color' in chatObj) parentState.color = chatObj['color'];
+    if ('bold' in chatObj) parentState.bold = chatObj['bold'];
+    if ('italic' in chatObj) parentState.italic = chatObj['italic'];
+    if ('underlined' in chatObj) parentState.underlined = chatObj['underlined'];
+    if ('strikethrough' in chatObj) parentState.strikethrough = chatObj['strikethrough'];
+    if ('obfuscated' in chatObj) parentState.obfuscated = chatObj['obfuscated'];
+
+    if ('text' in chatObj) {
+      chat += color(chatObj.text, getColorize(parentState));
+    } else if ('translate' in chatObj && dictionary.hasOwnProperty(chatObj.translate)) {
+      var args = [dictionary[chatObj.translate]];
+      chatObj['with'].forEach(function(s) {
+        args.push(parseChat(s, parentState));
+      });
+
+      chat += color(util.format.apply(this, args), getColorize(parentState));
+    }
+    for (var i in chatObj.extra) {
+      chat += parseChat(chatObj.extra[i], parentState);
+    }
+    return chat;
+  }
+}

package.json

@@ -36,6 +36,7 @@
     "ursa": "~0.8.0",
     "superagent": "~0.10.0",
     "buffer-equal": "0.0.0",
+    "ansi-color": "0.2.1",
     "node-uuid": "~1.4.1"
   }
 }