src/main/java/me/creepermaxcz/mcbots/Bot.java

@@ -125,7 +125,6 @@ public class Bot extends Thread {
             // Send chat message
             // From 1.19.1 or 1.19, the ServerboundChatPacket needs timestamp, salt and signed signature to generate packet.
             // tmpSignature will provide an empty byte array that can pretend it as signature.
-            byte[] tmpSignature = new byte[0]; // Set it empty byte array.
             // salt is set 0 since this is offline server and no body will check it.
             client.send(new ServerboundChatPacket(text,
                     timeStamp,

src/main/java/me/creepermaxcz/mcbots/MainListener.java

@@ -20,18 +20,21 @@ public class MainListener implements SessionListener {
         // From 1.19.1 (as well as 1.19), the class ClientboundChatPacket was removed.
         // Instead, they use ClientboundPlayerChatPacket and ClientboundSystemChatPacket for taking care of chat packets.
         Component message = null;
+        Component sender = null;
 
         if (packet instanceof ClientboundPlayerChatPacket) {
-            message = ((ClientboundPlayerChatPacket) packet).getMessageDecorated();
+            ClientboundPlayerChatPacket clientboundPlayerChatPacket = ((ClientboundPlayerChatPacket) packet);
+            message = clientboundPlayerChatPacket.getUnsignedContent();
+            sender = clientboundPlayerChatPacket.getName();
         } else if (packet instanceof ClientboundSystemChatPacket) {
             message = ((ClientboundSystemChatPacket) packet).getContent();
         }
 
-        //Log.chat(message.toString());
         if (message instanceof TextComponent) {
-            TextComponent msg = (TextComponent) message;
+            // Log.chat(Utils.getFullText((TextComponent) message, Main.coloredChat)); // Use this for only messages.
-            Log.chat(Utils.getFullText(msg, Main.coloredChat));
+            Log.chat(Utils.getFullText((TextComponent) sender, (TextComponent) message, Main.coloredChat)); // Use this for messages and sender's username.
         }
+
         if (message instanceof TranslatableComponent) {
             TranslatableComponent msg = (TranslatableComponent) message;
             Log.chat("[T]", Utils.translate(msg));

src/main/java/me/creepermaxcz/mcbots/Utils.java

@@ -8,7 +8,9 @@ import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.TextComponent;
 import net.kyori.adventure.text.TranslatableComponent;
 import net.kyori.adventure.text.format.NamedTextColor;
+import net.kyori.adventure.text.format.Style;
 import net.kyori.adventure.text.format.TextDecoration;
+import org.w3c.dom.Text;
 
 import java.io.InputStream;
 import java.io.InputStreamReader;
@@ -45,7 +47,45 @@ public class Utils {
             }
             return out;
         }
+    }
 
+    /**
+     * A static function that gets full text from text components.
+     * From 1.19.1 the protocol does not include sender's information in the message.
+     * Thus, we need to merge two TextComponent (sender and message) and generate a text that consists of sent message.
+     * This means using old getFullText will just send the message. Which does NOT contain username who sent this message
+     * @param sender The TextComponent for sender.
+     * @param message The TextComponent for message.
+     * @param colored Whether if this output was colored or not.
+     * @return Returns String in "Username : Message" format.
+     */
+    public static String getFullText(TextComponent sender, TextComponent message, boolean colored) {
+        if (colored) { // Check if we are using colors.
+            Style senderStyle = sender.style();
+            Style messageStyle = message.style();
+
+            StringBuilder outString = new StringBuilder();
+
+            if (senderStyle.color() != null) { // Generate sender text with color.
+                NamedTextColor color = (NamedTextColor) senderStyle.color();
+                outString.append(colorize(sender.content(), getColor(color)));
+            } else {
+                outString.append(sender.content());
+            }
+
+            outString.append(" : "); // Add delimiter as : between sender and message.
+
+            if (messageStyle.color() != null) { // Generate message text with color.
+                NamedTextColor color = (NamedTextColor) messageStyle.color();
+                outString.append(colorize(message.content(), getColor(color)));
+            } else {
+                outString.append(message.content());
+            }
+
+            return outString.toString();
+        } else { // When color formating was disabled.
+            return sender.content() + " : " + message.content();
+        }
     }
 
     public static Attribute getColor(NamedTextColor color) {