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Packet ID0610x3D
Map sync // wire record

PackStart

Starts a legacy resource-pack transfer with its byte length and checksum.

InactivePlannedProvisional9 bytes
Exact field order

Packet 61 wire layout

The first byte is the application packet ID. The rows after it appear in decode order. Sizes exclude ENet headers, the outer wrapper prefix, LZF chunk framing, and compression effects.

Packet 61 PackStart fields in byte order
#FieldEncodingBytesPurpose
0packet_idu81Always 61 (0x3D).
1sizei32 LE4Total resource-pack byte length.
2checksumi32 LE4checksum value.
Protocol convention

How to read this layout

  • LE means least-significant byte first.
  • fixed16 is two-byte sign-magnitude at 1/64 precision.
  • orientation16 uses the measured 1/8192 orientation mapping.
  • NUL strings consume their encoded byte length plus one 00 terminator.
  • Counted arrays repeat immediately in the order shown.