Update Attributes

Play 0x83, server → client.

play · 0x83 · clientbound (server → client)

Sets an entity’s attributes (max health, movement speed, etc.) with base values and modifiers. The server sends it when attributes change. Each modifier has a UUID or ID, amount and operation; the client recomputes the effective values.

Sent by the server, read by the client. Listen for it with client.on("UpdateAttributes", (data) => …) on the receiving side.

Fields

Send it

await client.sendPacket("UpdateAttributes", {
  entityId: /* VarInt */,
  properties: /* Array */,
});

Field aliases listed under Notes are accepted as alternative keys when writing.

Source: src/Core/Versions/776/Packets/play/clientbound/UpdateAttributes.ts