feat: soundboard (room-scoped custom audio pads)

Server side of the soundboard feature:
- rooms.soundboard_enabled flag + soundboard_sounds table (self-bootstraps
  at boot via SoundboardManager; migration 021 seeds up-front)
- SoundboardManager loads enabled sounds and persists the per-room flag
- SoundboardPlayEvent broadcasts the pressed pad to everyone in the room
- SoundboardSetEnabledEvent (owner/staff) toggles the room flag and
  pushes refreshed settings
- settings (flag + sound list) sent on room enter, alongside YouTube

Emulator/src/main/java/com/eu/habbo/habbohotel/GameEnvironment.java

@@ -7,6 +7,7 @@ import com.eu.habbo.habbohotel.bots.BotManager;
 import com.eu.habbo.habbohotel.campaign.calendar.CalendarManager;
 import com.eu.habbo.habbohotel.catalog.CatalogManager;
 import com.eu.habbo.habbohotel.wheel.WheelManager;
+import com.eu.habbo.habbohotel.soundboard.SoundboardManager;
 import com.eu.habbo.habbohotel.commands.CommandHandler;
 import com.eu.habbo.habbohotel.crafting.CraftingManager;
 import com.eu.habbo.habbohotel.guides.GuideManager;
@@ -66,6 +67,7 @@ public class GameEnvironment {
     private CustomBadgeManager customBadgeManager;
     private InfostandBackgroundManager infostandBackgroundManager;
     private WheelManager wheelManager;
+    private SoundboardManager soundboardManager;
 
     public void load() throws Exception {
         LOGGER.info("GameEnvironment -> Loading...");
@@ -96,6 +98,7 @@ public class GameEnvironment {
         this.customBadgeManager = new CustomBadgeManager();
         this.infostandBackgroundManager = new InfostandBackgroundManager();
         this.wheelManager = new WheelManager();
+        this.soundboardManager = new SoundboardManager();
 
         this.roomManager.loadPublicRooms();
         this.navigatorManager.loadNavigator();
@@ -163,6 +166,10 @@ public class GameEnvironment {
         return this.wheelManager;
     }
 
+    public SoundboardManager getSoundboardManager() {
+        return this.soundboardManager;
+    }
+
     public HotelViewManager getHotelViewManager() {
         return this.hotelViewManager;
     }

Emulator/src/main/java/com/eu/habbo/habbohotel/rooms/Room.java

@@ -197,6 +197,7 @@ public class Room implements Comparable<Room>, ISerialize, Runnable {
   private int wiredInspectMask = WIRED_ACCESS_DEFAULT_INSPECT_MASK;
   private int wiredModifyMask = WIRED_ACCESS_DEFAULT_MODIFY_MASK;
   private boolean youtubeEnabled = false;
+  private boolean soundboardEnabled = false;
   private String youtubeCurrentVideo = "";
   private String youtubeSenderName = "";
   private final java.util.List<String> youtubePlaylist = new java.util.concurrent.CopyOnWriteArrayList<>();
@@ -204,6 +205,8 @@ public class Room implements Comparable<Room>, ISerialize, Runnable {
 
   public boolean isYoutubeEnabled() { return this.youtubeEnabled; }
   public void setYoutubeEnabled(boolean enabled) { this.youtubeEnabled = enabled; }
+  public boolean isSoundboardEnabled() { return this.soundboardEnabled; }
+  public void setSoundboardEnabled(boolean enabled) { this.soundboardEnabled = enabled; }
   public String getYoutubeCurrentVideo() { return this.youtubeCurrentVideo; }
   public String getYoutubeSenderName() { return this.youtubeSenderName; }
   public java.util.List<String> getYoutubePlaylist() { return this.youtubePlaylist; }
@@ -250,6 +253,7 @@ public class Room implements Comparable<Room>, ISerialize, Runnable {
     this.allowWalkthrough = set.getBoolean("allow_walkthrough");
     this.hideWall = set.getBoolean("allow_hidewall");
     try { this.youtubeEnabled = set.getBoolean("youtube_enabled"); } catch (Exception e) { this.youtubeEnabled = false; }
+    try { this.soundboardEnabled = set.getBoolean("soundboard_enabled"); } catch (Exception e) { this.soundboardEnabled = false; }
     this.chatMode = set.getInt("chat_mode");
     this.chatWeight = set.getInt("chat_weight");
     this.chatSpeed = set.getInt("chat_speed");

Emulator/src/main/java/com/eu/habbo/habbohotel/rooms/RoomManager.java

@@ -1020,6 +1020,10 @@ public class RoomManager {
                     room.getYoutubeWatchers()).compose());
         }
 
+        habbo.getClient().sendResponse(new com.eu.habbo.messages.outgoing.soundboard.SoundboardSettingsComposer(
+                room.isSoundboardEnabled(),
+                Emulator.getGameEnvironment().getSoundboardManager().getSounds()).compose());
+
         WiredManager.triggerUserEntersRoom(room, habbo.getRoomUnit());
         room.habboEntered(habbo);
 

Emulator/src/main/java/com/eu/habbo/habbohotel/soundboard/SoundboardManager.java

@@ -0,0 +1,78 @@
+package com.eu.habbo.habbohotel.soundboard;
+
+import com.eu.habbo.Emulator;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.List;
+
+public class SoundboardManager {
+    private static final Logger LOGGER = LoggerFactory.getLogger(SoundboardManager.class);
+
+    private final List<SoundboardSound> sounds = new ArrayList<>();
+
+    public SoundboardManager() {
+        long millis = System.currentTimeMillis();
+        this.bootstrap();
+        this.reload();
+        LOGGER.info("Soundboard Manager -> Loaded! ({} MS, {} sounds)", System.currentTimeMillis() - millis, this.sounds.size());
+    }
+
+    // Self-bootstrap: room flag column + sounds table, so the feature works even
+    // before the manual migration is applied.
+    private void bootstrap() {
+        try (Connection connection = Emulator.getDatabase().getDataSource().getConnection();
+             Statement statement = connection.createStatement()) {
+            statement.execute("ALTER TABLE `rooms` ADD COLUMN IF NOT EXISTS `soundboard_enabled` TINYINT(1) NOT NULL DEFAULT 0");
+            statement.execute("CREATE TABLE IF NOT EXISTS `soundboard_sounds` (" +
+                    "`id` INT(11) NOT NULL AUTO_INCREMENT, `name` VARCHAR(64) NOT NULL DEFAULT '', " +
+                    "`url` VARCHAR(255) NOT NULL DEFAULT '', `enabled` TINYINT(1) NOT NULL DEFAULT 1, " +
+                    "`sort_order` INT(11) NOT NULL DEFAULT 0, PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4");
+        } catch (SQLException e) {
+            LOGGER.error("Failed to bootstrap soundboard schema", e);
+        }
+    }
+
+    public void reload() {
+        this.sounds.clear();
+        try (Connection connection = Emulator.getDatabase().getDataSource().getConnection();
+             PreparedStatement statement = connection.prepareStatement("SELECT id, name, url FROM soundboard_sounds WHERE enabled = 1 ORDER BY sort_order ASC, id ASC");
+             ResultSet set = statement.executeQuery()) {
+            while (set.next()) {
+                this.sounds.add(new SoundboardSound(set));
+            }
+        } catch (SQLException e) {
+            LOGGER.error("Failed to load soundboard sounds", e);
+        }
+    }
+
+    public List<SoundboardSound> getSounds() {
+        return this.sounds;
+    }
+
+    public SoundboardSound getSound(int id) {
+        for (SoundboardSound sound : this.sounds) {
+            if (sound.id == id) return sound;
+        }
+        return null;
+    }
+
+    // Owner toggle — persists the room flag with a dedicated UPDATE (kept out of
+    // the big room-settings save to avoid touching that statement).
+    public void setRoomEnabled(int roomId, boolean enabled) {
+        try (Connection connection = Emulator.getDatabase().getDataSource().getConnection();
+             PreparedStatement statement = connection.prepareStatement("UPDATE rooms SET soundboard_enabled = ? WHERE id = ? LIMIT 1")) {
+            statement.setString(1, enabled ? "1" : "0");
+            statement.setInt(2, roomId);
+            statement.executeUpdate();
+        } catch (SQLException e) {
+            LOGGER.error("Failed to set soundboard_enabled for room {}", roomId, e);
+        }
+    }
+}

Emulator/src/main/java/com/eu/habbo/habbohotel/soundboard/SoundboardSound.java

@@ -0,0 +1,17 @@
+package com.eu.habbo.habbohotel.soundboard;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+// One soundboard pad: a named audio clip served from a URL (uploaded via the CMS).
+public class SoundboardSound {
+    public final int id;
+    public final String name;
+    public final String url;
+
+    public SoundboardSound(ResultSet set) throws SQLException {
+        this.id = set.getInt("id");
+        this.name = set.getString("name");
+        this.url = set.getString("url");
+    }
+}

Emulator/src/main/java/com/eu/habbo/messages/PacketManager.java

@@ -753,5 +753,8 @@ public class PacketManager {
         this.registerHandler(Incoming.WheelBuySpinEvent, com.eu.habbo.messages.incoming.wheel.WheelBuySpinEvent.class);
         this.registerHandler(Incoming.WheelAdminGetPrizesEvent, com.eu.habbo.messages.incoming.wheel.WheelAdminGetPrizesEvent.class);
         this.registerHandler(Incoming.WheelAdminSavePrizesEvent, com.eu.habbo.messages.incoming.wheel.WheelAdminSavePrizesEvent.class);
+
+        this.registerHandler(Incoming.SoundboardPlayEvent, com.eu.habbo.messages.incoming.soundboard.SoundboardPlayEvent.class);
+        this.registerHandler(Incoming.SoundboardSetEnabledEvent, com.eu.habbo.messages.incoming.soundboard.SoundboardSetEnabledEvent.class);
     }
 }

Emulator/src/main/java/com/eu/habbo/messages/incoming/Incoming.java

@@ -494,4 +494,6 @@ public class Incoming {
     public static final int WheelBuySpinEvent = 9303;
     public static final int WheelAdminGetPrizesEvent = 9304;
     public static final int WheelAdminSavePrizesEvent = 9305;
+    public static final int SoundboardPlayEvent = 9306;
+    public static final int SoundboardSetEnabledEvent = 9307;
 }

Emulator/src/main/java/com/eu/habbo/messages/incoming/soundboard/SoundboardPlayEvent.java

@@ -0,0 +1,31 @@
+package com.eu.habbo.messages.incoming.soundboard;
+
+import com.eu.habbo.Emulator;
+import com.eu.habbo.habbohotel.rooms.Room;
+import com.eu.habbo.habbohotel.soundboard.SoundboardSound;
+import com.eu.habbo.habbohotel.users.Habbo;
+import com.eu.habbo.messages.incoming.MessageHandler;
+import com.eu.habbo.messages.outgoing.soundboard.SoundboardPlayComposer;
+
+public class SoundboardPlayEvent extends MessageHandler {
+    @Override
+    public int getRatelimit() {
+        return 250;
+    }
+
+    @Override
+    public void handle() throws Exception {
+        Habbo habbo = this.client.getHabbo();
+        if (habbo == null) return;
+
+        Room room = this.currentRoom();
+        if (room == null || !room.isSoundboardEnabled()) return;
+
+        int soundId = this.packet.readInt();
+        SoundboardSound sound = Emulator.getGameEnvironment().getSoundboardManager().getSound(soundId);
+        if (sound == null) return;
+
+        // Broadcast to everyone in the room.
+        room.sendComposer(new SoundboardPlayComposer(sound.id, sound.url, habbo.getHabboInfo().getUsername()).compose());
+    }
+}

Emulator/src/main/java/com/eu/habbo/messages/incoming/soundboard/SoundboardSetEnabledEvent.java

@@ -0,0 +1,37 @@
+package com.eu.habbo.messages.incoming.soundboard;
+
+import com.eu.habbo.Emulator;
+import com.eu.habbo.habbohotel.permissions.Permission;
+import com.eu.habbo.habbohotel.rooms.Room;
+import com.eu.habbo.habbohotel.users.Habbo;
+import com.eu.habbo.messages.incoming.MessageHandler;
+import com.eu.habbo.messages.outgoing.soundboard.SoundboardSettingsComposer;
+
+public class SoundboardSetEnabledEvent extends MessageHandler {
+    @Override
+    public int getRatelimit() {
+        return 1000;
+    }
+
+    @Override
+    public void handle() throws Exception {
+        Habbo habbo = this.client.getHabbo();
+        if (habbo == null) return;
+
+        Room room = this.currentRoom();
+        if (room == null) return;
+
+        // Only the room owner (or staff) may toggle the soundboard for the room.
+        boolean isOwner = room.getOwnerId() == habbo.getHabboInfo().getId();
+        if (!isOwner && !habbo.hasPermission(Permission.ACC_SUPPORTTOOL)) return;
+
+        boolean enabled = this.packet.readInt() == 1;
+
+        room.setSoundboardEnabled(enabled);
+        Emulator.getGameEnvironment().getSoundboardManager().setRoomEnabled(room.getId(), enabled);
+
+        // Push the refreshed settings (flag + sound list) to everyone in the room
+        // so the toolbar icon appears/disappears live.
+        room.sendComposer(new SoundboardSettingsComposer(enabled, Emulator.getGameEnvironment().getSoundboardManager().getSounds()).compose());
+    }
+}

Emulator/src/main/java/com/eu/habbo/messages/outgoing/Outgoing.java

@@ -600,5 +600,7 @@ public class Outgoing {
     public static final int WheelResultComposer = 9402;
     public static final int WheelRecentWinsComposer = 9403;
     public static final int WheelAdminPrizesComposer = 9404;
+    public static final int SoundboardSettingsComposer = 9405;
+    public static final int SoundboardPlayComposer = 9406;
 
 }

Emulator/src/main/java/com/eu/habbo/messages/outgoing/soundboard/SoundboardPlayComposer.java

@@ -0,0 +1,27 @@
+package com.eu.habbo.messages.outgoing.soundboard;
+
+import com.eu.habbo.messages.ServerMessage;
+import com.eu.habbo.messages.outgoing.MessageComposer;
+import com.eu.habbo.messages.outgoing.Outgoing;
+
+// Broadcast to everyone in the room when a pad is pressed — they all play the clip.
+public class SoundboardPlayComposer extends MessageComposer {
+    private final int soundId;
+    private final String url;
+    private final String username;
+
+    public SoundboardPlayComposer(int soundId, String url, String username) {
+        this.soundId = soundId;
+        this.url = url != null ? url : "";
+        this.username = username != null ? username : "";
+    }
+
+    @Override
+    protected ServerMessage composeInternal() {
+        this.response.init(Outgoing.SoundboardPlayComposer);
+        this.response.appendInt(this.soundId);
+        this.response.appendString(this.url);
+        this.response.appendString(this.username);
+        return this.response;
+    }
+}

Emulator/src/main/java/com/eu/habbo/messages/outgoing/soundboard/SoundboardSettingsComposer.java

@@ -0,0 +1,33 @@
+package com.eu.habbo.messages.outgoing.soundboard;
+
+import com.eu.habbo.habbohotel.soundboard.SoundboardSound;
+import com.eu.habbo.messages.ServerMessage;
+import com.eu.habbo.messages.outgoing.MessageComposer;
+import com.eu.habbo.messages.outgoing.Outgoing;
+
+import java.util.List;
+
+// Sent on room enter (and on toggle): whether the soundboard is active in this
+// room + the available pads. The client shows the toolbar icon only if enabled.
+public class SoundboardSettingsComposer extends MessageComposer {
+    private final boolean enabled;
+    private final List<SoundboardSound> sounds;
+
+    public SoundboardSettingsComposer(boolean enabled, List<SoundboardSound> sounds) {
+        this.enabled = enabled;
+        this.sounds = sounds;
+    }
+
+    @Override
+    protected ServerMessage composeInternal() {
+        this.response.init(Outgoing.SoundboardSettingsComposer);
+        this.response.appendBoolean(this.enabled);
+        this.response.appendInt(this.sounds.size());
+        for (SoundboardSound sound : this.sounds) {
+            this.response.appendInt(sound.id);
+            this.response.appendString(sound.name);
+            this.response.appendString(sound.url);
+        }
+        return this.response;
+    }
+}