Add LAN_SERVER_ID to LAN payload

Server side fix for #5

gradle.properties

@@ -9,7 +9,7 @@ yarn_mappings=1.20.4+build.3
 loader_version=0.15.3
 
 # Mod Properties
-mod_version=1.0.2
+mod_version=1.1.0
 maven_group=is.meh.minecraft.lan_announcer
 archives_base_name=lanannouncer
 

src/main/java/is/meh/minecraft/lan_announcer/LANAnnouncer.java

@@ -11,6 +11,7 @@
 import java.net.DatagramPacket;
 import java.net.DatagramSocket;
 import java.net.InetAddress;
+import java.util.UUID;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;
@@ -40,10 +41,13 @@ private String sanitizeMOTD(String motd) {
     }
 
     private void onServerStarted(MinecraftServer server) {
-        String motd = sanitizeMOTD(server.getServerMotd());
-        int server_port = server.getServerPort();
+        String motd = "[MOTD]" + sanitizeMOTD(server.getServerMotd()) + "[/MOTD]";
+        String port = "[AD]" + server.getServerPort() + "[/AD]";
 
-        byte[] message = ("[MOTD]" + motd + "[/MOTD][AD]" + server_port + "[/AD]").getBytes();
+        // https://github.com/meh-is/LANAnnouncer/issues/5#issuecomment-1873572736
+        String uuid = "[LAN_SERVER_ID]" + UUID.randomUUID() + "[/LAN_SERVER_ID]";
+
+        byte[] message = (motd + port + uuid).getBytes();
 
         // Initialize and start the IPv4 and IPv6 announcers
         ipv4Announcer = new ServerAnnouncer("224.0.2.60", message);