Pre-release protocol
This page documents the changes from the last stable Minecraft release (currently 1.1) to the current pre-release (currently 12w03a)
New packets
Unknown (0x23)
| Packet ID | Field Name | Field Type | Example | Notes |
|---|---|---|---|---|
| 0x23 | Unknown | int | Likely to be Entity ID | |
| Unknown | byte | Rotation of something... | ||
| Total Size: | 6 bytes | |||
Changed packets
Mob Spawn (0x18)
New byte field.
| 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 X Axis rotation in steps of 2π/256 | |
| Pitch | byte | 0
|
The Y Axis rotation in steps of 2π/256 | |
| Unknown | byte | Rotation of something... | ||
| 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
2012-01-19
- 12w03a
- Protocol version is now 24
- New packet: 0x23
- MobSpawn: new field, 1 byte inserted before metadata.