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Chat

Room chat flow:

User A (client)           Server             User B (client)
  │                          │                     │
  │── [1314] Talk("hello") ─>│                     │
  │                          │                     │
  │  server calls room.talk()│                     │
  │  which iterates every    │                     │
  │  Habbo in the room       │                     │
  │                          │── [1446] Talk ─────>│  (roomUnitId_A, "hello", bubble=0)
  │                          │   broadcast to B    │  delivered to every other occupant
  │                          │                     │
  │<─ [1446] Talk ───────────│                     │  (roomUnitId_A, "hello", bubble=0)
  │  echo to sender A        │                     │  server includes A in the broadcast
  │  (A is also in the room  │                     │  loop - sender hears own message
  │   iterator; not special- │                     │  exactly like everyone else)
  │   cased)                 │                     │

Why the sender gets an echo: room.talk() broadcasts [1446] RoomUserTalk to all current room occupants via a single loop - the sender is not excluded. The client uses the roomUnitId inside the packet to identify whose speech bubble to render, so it correctly shows the bubble above User A regardless of recipient.

C→S 1314 - RoomUserTalk​

Nitro: UNIT_CHAT

Source: RoomUserTalkEvent, RoomChatMessage

Body:
  message: string
  styleId: int      Bubble style ID (0 = default)

C→S 2085 - RoomUserShout​

Nitro: UNIT_CHAT_SHOUT

Source: RoomUserShoutEvent, RoomChatMessage

Body:
  message: string
  styleId: int      Bubble style ID (0 = default)

Same format as RoomUserTalk (1314).

C→S 1543 - RoomUserWhisper​

Nitro: UNIT_CHAT_WHISPER

Source: RoomUserWhisperEvent, RoomChatMessage

Note: RoomUnitChatWhisper concatenates (recipientName + ' ' + message) into one string before sending - it does NOT send them as separate fields. Arcturus RoomChatMessage reconstructs them by splitting on the first space: data.split(" ")[0] = name, data.substring(name.length + 1) = message text. The doc previously listed 4 separate fields (targetName, message, emotion, styleId) - all wrong.

Body:
  concatenated: string   "recipientName message" as one string (name + space + message text)
  styleId:      int      Bubble style ID

S→C 1446 - RoomUserTalk​

Source: RoomUserTalkComposer, RoomUserTalkEvent

Broadcasts a chat message from a room user to all clients in the room, including the sender's room unit ID, message text, bubble style, and message length.

S→C 1036 - RoomUserShout​

Nitro: UNIT_CHAT_SHOUT

Source: RoomUserShoutComposer, RoomUserShoutEvent

Broadcasts a shouted chat message from a room user to all clients in the room. Shares the same five-field body format as RoomUserTalk.

S→C 2704 - RoomUserWhisper​

Source: RoomUserWhisperComposer, RoomUserWhisperEvent

All three share the same body format.

Body:
  roomUnitId: int
  message:    string
  bubbleType: int    Chat bubble style (0 = default)
  unknown:    int    (always 0)
  textLength: int    Length of message in characters

S→C 566 - Muted​

Notifies the client that the user has been temporarily muted due to spamming, with the number of seconds remaining.

Body: (empty)