Pre-release protocol
This page documents the changes from the last stable Minecraft release (currently 1.1) to the current pre-release (currently 12w03a)
Contents
New packets
Entity Head Look (0x23)
Changes the direction an entity's head is facing.
| Packet ID | Field Name | Field Type | Example | Notes |
|---|---|---|---|---|
| 0x23 | Entity ID | int | ||
| Head Yaw | byte | Head yaw in steps of 2π/256 | ||
| Total Size: | 6 bytes | |||
Changed packets
Mob Spawn (0x18)
New byte field: head yaw
This needs confirmation!
| Packet ID | Field Name | Field Type | Example | Notes |
|---|---|---|---|---|
| 0x18 | EID | int | 446
|
Entity ID |
| Type | byte | 91
|
The type of mob. See Entities#Mobs | |
| X | int | 13366
|
The Absolute Integer X Position of the object | |
| Y | int | 2176
|
The Absolute Integer Y Position of the object | |
| Z | int | 1680
|
The Absolute Integer Z Position of the object | |
| Yaw | byte | -27
|
The yaw in steps of 2π/256 | |
| Pitch | byte | 0
|
The pitch in steps of 2π/256 | |
| Head Yaw | byte | Head yaw in steps of 2π/256 | ||
| Metadata | Metadata | 127
|
Varies by mob, see Entities | |
| Total Size: | 21 bytes + Metadata (at least 1) | |||
Other changes
Protocol version is now 24.
Protocol History
2012-01-26
- 12w04a
- Protocol version has not been changed
- Handshake Packet by client (0x02) now contains the server host and port
2012-01-19
- 12w03a
- Protocol version is now 24
- New packet: 0x23
- MobSpawn: new field, 1 byte inserted before metadata.
