Test Instance Block Action

Play 0x41, client → server.

play · 0x41 · serverbound (client → server)

Sent from the test instance block GUI (game test framework). action is init, query, set, reset, save, export, or run; the other fields (test, size, rotation, ignoreEntities, status, errorMessage) carry the block’s settings. Operator-only; the server updates the block and runs the action.

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

Fields

Send it

await client.sendPacket("TestInstanceBlockAction", {
  pos: /* Position */,
  action: /* VarInt */,
  data: /* Struct */,
});

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

Source: src/Core/Versions/776/Packets/play/serverbound/TestInstanceBlockAction.ts