Added display of brand name under f3

src/main/java/ru/nanit/limbo/configuration/LimboConfig.java

@@ -19,6 +19,7 @@ public final class LimboConfig {
 
     private SocketAddress address;
     private int maxPlayers;
+    private String brandName;
     private PingData pingData;
 
     private String dimensionType;
@@ -55,6 +56,7 @@ public final class LimboConfig {
 
         address = conf.node("bind").get(SocketAddress.class);
         maxPlayers = conf.node("maxPlayers").getInt();
+        brandName = conf.node("brandName").getString();
         pingData = conf.node("ping").get(PingData.class);
         dimensionType = conf.node("dimension").getString();
         spawnPosition = conf.node("spawnPosition").get(Position.class);
@@ -116,6 +118,10 @@ public final class LimboConfig {
         return maxPlayers;
     }
 
+    public String getBrandName() {
+        return brandName;
+    }
+
     public PingData getPingData() {
         return pingData;
     }

src/main/java/ru/nanit/limbo/connection/ClientConnection.java

@@ -41,6 +41,7 @@ public class ClientConnection extends ChannelInboundHandlerAdapter {
 
     private static PreEncodedPacket PACKET_LOGIN_SUCCESS;
     private static PreEncodedPacket PACKET_JOIN_GAME;
+    private static PreEncodedPacket PACKET_PLUGIN_MESSAGE;
     private static PreEncodedPacket PACKET_PLAYER_ABILITIES;
     private static PreEncodedPacket PACKET_PLAYER_INFO;
     private static PreEncodedPacket PACKET_DECLARE_COMMANDS;
@@ -215,6 +216,7 @@ public class ClientConnection extends ChannelInboundHandlerAdapter {
         server.getConnections().addConnection(this);
 
         writePacket(PACKET_JOIN_GAME);
+        writePacket(PACKET_PLUGIN_MESSAGE);
         writePacket(PACKET_PLAYER_ABILITIES);
         writePacket(PACKET_PLAYER_POS);
         writePacket(PACKET_PLAYER_INFO);
@@ -383,6 +385,10 @@ public class ClientConnection extends ChannelInboundHandlerAdapter {
         joinGame.setHashedSeed(0);
         joinGame.setDimensionRegistry(server.getDimensionRegistry());
 
+        PacketPluginMessage pluginMessage = new PacketPluginMessage();
+        pluginMessage.setChannel("minecraft:brand");
+        pluginMessage.setMessage(server.getConfig().getBrandName());
+
         PacketPlayerAbilities playerAbilities = new PacketPlayerAbilities();
         playerAbilities.setFlyingSpeed(0.0F);
         playerAbilities.setFlags(0x02);
@@ -406,6 +412,7 @@ public class ClientConnection extends ChannelInboundHandlerAdapter {
 
         PACKET_LOGIN_SUCCESS = PreEncodedPacket.of(loginSuccess);
         PACKET_JOIN_GAME = PreEncodedPacket.of(joinGame);
+        PACKET_PLUGIN_MESSAGE = PreEncodedPacket.of(pluginMessage);
         PACKET_PLAYER_ABILITIES = PreEncodedPacket.of(playerAbilities);
         PACKET_PLAYER_POS = PreEncodedPacket.of(positionAndLook);
         PACKET_PLAYER_INFO = PreEncodedPacket.of(info);

src/main/java/ru/nanit/limbo/protocol/packets/play/PacketPluginMessage.java

@@ -0,0 +1,23 @@
+package ru.nanit.limbo.protocol.packets.play;
+
+import ru.nanit.limbo.protocol.ByteMessage;
+import ru.nanit.limbo.protocol.PacketOut;
+import ru.nanit.limbo.protocol.registry.Version;
+
+public class PacketPluginMessage implements PacketOut {
+    private String channel;
+    private String message;
+
+    public void setChannel(String channel){
+        this.channel = channel;
+    }
+    public void setMessage(String message){
+        this.message = message;
+    }
+
+    @Override
+    public void encode(ByteMessage msg, Version version) {
+        msg.writeString(channel);
+        msg.writeString(message);
+    }
+}

src/main/java/ru/nanit/limbo/protocol/registry/State.java

@@ -87,6 +87,10 @@ public enum State {
                     map(0x24, V1_16_2, V1_16_4),
                     map(0x26, V1_17, V1_18)
             );
+            // to do
+            clientBound.register(PacketPluginMessage::new,
+                    map(0x18, V1_18, V1_18)
+            );
             clientBound.register(PacketPlayerAbilities::new,
                     map(0x39, V1_8, V1_8),
                     map(0x2B, V1_9, V1_12),

src/main/resources/settings.yml

@@ -11,6 +11,9 @@ bind:
 # Set -1 to make it infinite
 maxPlayers: 100
 
+# Server name which is shown under F3
+brandName: 'NanoLimbo'
+
 # Server's data in servers list
 ping:
   description: '{"text": "&9NanoLimbo"}'