Difference between revisions of "Pre-release protocol"

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(Byte fields are Head Yaw (I think). Int is entity ID.)
(Updated to 1.21-pre2)
 
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−
This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently 1.1) to the current pre-release (currently 12w03a)
+
This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.20.6, protocol 766]]) to the current pre-release (currently [[Protocol version numbers|1.21-pre2, protocol {{Snapshot PVN|1073742024}}]]). Note that this page contains bleeding-edge information that may not be completely or correctly documented.
  
−
== New packets ==
+
One who wishes to commandeer the merging of this into [[Protocol]] when an update is made must be sure to respect any changes that may have occurred to the respective packets there.
  
−
=== Entity Head Look (0x23) ===
+
== Contents ==
  
−
Changes the direction an entity's head is facing.
+
<div style="float:right;">__TOC__</div>
  
−
This needs confirmation!
+
=== Data types ===
 +
 
 +
No changes documented so far.
 +
 
 +
=== Packets ===
  
 
{| class="wikitable"
 
{| class="wikitable"
−
|- class="row0"
+
! ID
−
! class="col0" | Packet ID
+
! Packet name
−
! class="col1" | Field Name
+
!colspan="2"| Documentation
−
! class="col2" | Field Type
+
|-
−
! class="col3" | Example
+
!colspan="4"| Configuration clientbound
−
! class="col4" | Notes
+
{{PacketList|0x0F|Clientbound Report Details (configuration)|rel=added}}
−
|- class="row1"
+
{{PacketList|0x10|Clientbound Server Links (configuration)|rel=added}}
−
| class="col0 centeralign" rowspan="2" | 0x23
+
|-
−
| class="col1 centeralign" | Entity ID
+
!colspan="4"| Play clientbound
−
| class="col2 centeralign" | int
+
{{PacketList|0x7A|Clientbound Report Details (play)|rel=added}}
−
| class="col3 centeralign" |  
+
{{PacketList|0x7B|Clientbound Server Links (play)|rel=added}}
−
| class="col4" |  
+
|-
−
|- class="row2"
+
|}
−
| class="col0 centeralign" | Head Yaw
+
 
−
| class="col1 centeralign" | byte
+
== Handshake ==
−
| class="col2 centeralign" |  
+
 
−
| class="col3" | Head yaw in steps of 2π/256
+
No changes so far.
−
|- class="row3"
+
 
−
! class="col0" | Total Size:
+
== Status ==
−
| class="col1 rightalign" colspan="4" | 6 bytes
+
 
 +
No changes so far.
 +
 
 +
== Login ==
 +
 
 +
No changes so far.
 +
 
 +
== Configuration ==
 +
 
 +
=== Clientbound ===
 +
 
 +
==== Clientbound Report Details (configuration) ====
 +
 
 +
Contains a list of key-value text entries that are included in any crash or disconnection report generated during connection to the server.
 +
 
 +
{| class="wikitable" {{added}}
 +
! Packet ID
 +
! State
 +
! Bound To
 +
! colspan="2"| Field Name
 +
! colspan="2"| Field Type
 +
! Notes
 +
|-
 +
| rowspan="3"| 0x0F
 +
| rowspan="3"| Configuration
 +
| rowspan="3"| Client
 +
| colspan="2"| Details Count
 +
| colspan="2"| {{Type|VarInt}} (32)
 +
| The number of details in the following array.
 +
|-
 +
| rowspan="2"| Details
 +
| Title
 +
| rowspan="2"| {{Type|Array}}
 +
| {{Type|String}} (128)
 +
|
 +
|-
 +
| Description
 +
| {{Type|String}} (4096)
 +
|
 
|}
 
|}
  
−
== Changed packets ==
+
==== Clientbound Server Links (configuration) ====
 +
 
 +
This packet contains a list of links that the Notchian client will display in the menu available from the pause menu. Link labels can be built-in or custom (i.e., any text).
 +
 
 +
{| class="wikitable" {{added}}
 +
! Packet ID
 +
! State
 +
! Bound To
 +
! colspan="2"| Field Name
 +
! colspan="2"| Field Type
 +
! Notes
 +
|-
 +
| rowspan="4"| 0x10
 +
| rowspan="4"| Configuration
 +
| rowspan="4"| Client
 +
| colspan="2"| Links Count
 +
| colspan="2"| {{Type|VarInt}}
 +
| The number of links in the following array.
 +
|-
 +
| rowspan="3"| Links
 +
| Is built-in
 +
| rowspan="3"| {{Type|Array}}
 +
| {{Type|Boolean}}
 +
| Determines if the following label is built-in (from enum) or custom (text component).
 +
|-
 +
| Label
 +
| {{Type|VarInt}} {{Type|Enum}} / {{Type|Text Component}}
 +
| See below.
 +
|-
 +
| URL
 +
| {{Type|String}}
 +
| Valid URL.
 +
|}
  
−
=== [[Protocol#Mob_Spawn_.280x18.29|Mob Spawn (0x18)]] ===
 
  
−
New byte field: head yaw
+
{| class="wikitable" {{added}}
 +
! ID
 +
! Name
 +
! Notes
 +
|-
 +
| 0
 +
| Bug Report
 +
| Displayed on connection error screen; included as a comment in the disconnection report.
 +
|-
 +
| 1
 +
| Community Guidelines
 +
|
 +
|-
 +
| 2
 +
| Support
 +
|
 +
|-
 +
| 3
 +
| Status
 +
|
 +
|-
 +
| 4
 +
| Feedback
 +
|
 +
|-
 +
| 5
 +
| Community
 +
|
 +
|-
 +
| 6
 +
| Website
 +
|
 +
|-
 +
| 7
 +
| Forums
 +
|
 +
|-
 +
| 8
 +
| News
 +
|
 +
|-
 +
| 9
 +
| Announcements
 +
|
 +
|-
 +
|}
  
−
This needs confirmation!
+
=== Serverbound ===
  
−
{| class="wikitable"
+
No changes so far.
−
|- class="row0"
+
 
−
! class="col0" | Packet ID
+
== Play ==
−
! class="col1" | Field Name
+
 
−
! class="col2" | Field Type
+
=== Clientbound ===
−
! class="col3" | Example
+
 
−
! class="col4" | Notes
+
==== Clientbound Report Details (play) ====
−
|- class="row1"
+
 
−
| class="col0 centeralign" rowspan="9" | 0x18
+
Contains a list of key-value text entries that are included in any crash or disconnection report generated during connection to the server.
−
| class="col1 centeralign" | EID
+
 
−
| class="col2 centeralign" | int
+
{| class="wikitable" {{added}}
−
| class="col3 centeralign" | <code>446</code>
+
! Packet ID
−
| class="col4" | Entity ID
+
! State
−
|- class="row2"
+
! Bound To
−
| class="col0 centeralign" | Type
+
! colspan="2"| Field Name
−
| class="col1 centeralign" | byte
+
! colspan="2"| Field Type
−
| class="col2 centeralign" | <code>91</code>
+
! Notes
−
| class="col3" | The type of mob. See [[Entities#Mobs]]
+
|-
−
|- class="row3"
+
| rowspan="3"| 0x7A
−
| class="col0 centeralign" | X
+
| rowspan="3"| Configuration
−
| class="col1 centeralign" | int
+
| rowspan="3"| Client
−
| class="col2 centeralign" | <code>13366</code>
+
| colspan="2"| Details Count
−
| class="col3" | The Absolute Integer X Position of the object
+
| colspan="2"| {{Type|VarInt}} (32)
−
|- class="row4"
+
| The number of details in the following array.
−
| class="col0 centeralign" | Y
+
|-
−
| class="col1 centeralign" | int
+
| rowspan="2"| Details
−
| class="col2 centeralign" | <code>2176</code>
+
| Title
−
| class="col3" | The Absolute Integer Y Position of the object
+
| rowspan="2"| {{Type|Array}}
−
|- class="row5"
+
| {{Type|String}} (128)
−
| class="col0 centeralign" | Z
+
|
−
| class="col1 centeralign" | int
+
|-
−
| class="col2 centeralign" | <code>1680</code>
+
| Description
−
| class="col3" | The Absolute Integer Z Position of the object
+
| {{Type|String}} (4096)
−
|- class="row6"
+
|
−
| class="col0 centeralign" | Yaw
 
−
| class="col1 centeralign" | byte
 
−
| class="col2 centeralign" | <code>-27</code>
 
−
| class="col3" | The yaw in steps of 2π/256
 
−
|- class="row7"
 
−
| class="col0 centeralign" | Pitch
 
−
| class="col1 centeralign" | byte
 
−
| class="col2 centeralign" | <code>0</code>
 
−
| class="col3" | The pitch in steps of 2π/256
 
−
|- class="row8"
 
−
| class="col0 centeralign" | '''Head Yaw'''
 
−
| class="col1 centeralign" | byte
 
−
| class="col2 centeralign" |  
 
−
| class="col3" | Head yaw in steps of 2π/256
 
−
|- class="row9"
 
−
| class="col0 centeralign" | Metadata
 
−
| class="col1 centeralign" | Metadata
 
−
| class="col2 centeralign" | <code>127</code>
 
−
| class="col3" | Varies by mob, see [[Entities]]
 
−
|- class="row10"
 
−
! class="col0" | Total Size:
 
−
| class="col1 rightalign" colspan="4" | 21 bytes + Metadata (at least 1)
 
 
|}
 
|}
  
 +
==== Clientbound Server Links (play) ====
 +
 +
This packet contains a list of links that the Notchian client will display in the menu available from the pause menu. Link labels can be built-in or custom (i.e., any text).
 +
 +
{| class="wikitable" {{added}}
 +
! Packet ID
 +
! State
 +
! Bound To
 +
! colspan="2"| Field Name
 +
! colspan="2"| Field Type
 +
! Notes
 +
|-
 +
| rowspan="4"| 0x7B
 +
| rowspan="4"| Configuration
 +
| rowspan="4"| Client
 +
| colspan="2"| Links Count
 +
| colspan="2"| {{Type|VarInt}}
 +
| The number of links in the following array.
 +
|-
 +
| rowspan="3"| Links
 +
| Is built-in
 +
| rowspan="3"| {{Type|Array}}
 +
| {{Type|Boolean}}
 +
| Determines if the following label is built-in (from enum) or custom (text component).
 +
|-
 +
| Label
 +
| {{Type|VarInt}} {{Type|Enum}} / {{Type|Text Component}}
 +
| See below.
 +
|-
 +
| URL
 +
| {{Type|String}}
 +
| Valid URL.
 +
|}
  
−
== Other changes ==
+
{| class="wikitable" {{added}}
 +
! ID
 +
! Name
 +
! Notes
 +
|-
 +
| 0
 +
| Bug Report
 +
| Displayed on connection error screen; included as a comment in the disconnection report.
 +
|-
 +
| 1
 +
| Community Guidelines
 +
|
 +
|-
 +
| 2
 +
| Support
 +
|
 +
|-
 +
| 3
 +
| Status
 +
|
 +
|-
 +
| 4
 +
| Feedback
 +
|
 +
|-
 +
| 5
 +
| Community
 +
|
 +
|-
 +
| 6
 +
| Website
 +
|
 +
|-
 +
| 7
 +
| Forums
 +
|
 +
|-
 +
| 8
 +
| News
 +
|
 +
|-
 +
| 9
 +
| Announcements
 +
|
 +
|-
 +
|}
  
−
Protocol version is now 24.
+
=== Serverbound ===
  
−
== Protocol History ==
+
No changes so far.
  
−
=== 2012-01-19 ===
+
[[Category:Minecraft Modern]]
−
* 12w03a
 
−
* Protocol version is now 24
 
−
* New packet: 0x23
 
−
* MobSpawn: new field, 1 byte inserted before metadata.
 

Latest revision as of 10:40, 8 June 2024

This page documents the changes from the last stable Minecraft release (currently 1.20.6, protocol 766) to the current pre-release (currently 1.21-pre2, protocol Snapshot 200). Note that this page contains bleeding-edge information that may not be completely or correctly documented.

One who wishes to commandeer the merging of this into Protocol when an update is made must be sure to respect any changes that may have occurred to the respective packets there.

Contents

Data types

No changes documented so far.

Packets

ID Packet name Documentation
Configuration clientbound
0x0F Clientbound Report Details (configuration) Pre
0x10 Clientbound Server Links (configuration) Pre
Play clientbound
0x7A Clientbound Report Details (play) Pre
0x7B Clientbound Server Links (play) Pre

Handshake

No changes so far.

Status

No changes so far.

Login

No changes so far.

Configuration

Clientbound

Clientbound Report Details (configuration)

Contains a list of key-value text entries that are included in any crash or disconnection report generated during connection to the server.

Packet ID State Bound To Field Name Field Type Notes
0x0F Configuration Client Details Count VarInt (32) The number of details in the following array.
Details Title Array String (128)
Description String (4096)

Clientbound Server Links (configuration)

This packet contains a list of links that the Notchian client will display in the menu available from the pause menu. Link labels can be built-in or custom (i.e., any text).

Packet ID State Bound To Field Name Field Type Notes
0x10 Configuration Client Links Count VarInt The number of links in the following array.
Links Is built-in Array Boolean Determines if the following label is built-in (from enum) or custom (text component).
Label VarInt Enum / Text Component See below.
URL String Valid URL.


ID Name Notes
0 Bug Report Displayed on connection error screen; included as a comment in the disconnection report.
1 Community Guidelines
2 Support
3 Status
4 Feedback
5 Community
6 Website
7 Forums
8 News
9 Announcements

Serverbound

No changes so far.

Play

Clientbound

Clientbound Report Details (play)

Contains a list of key-value text entries that are included in any crash or disconnection report generated during connection to the server.

Packet ID State Bound To Field Name Field Type Notes
0x7A Configuration Client Details Count VarInt (32) The number of details in the following array.
Details Title Array String (128)
Description String (4096)

Clientbound Server Links (play)

This packet contains a list of links that the Notchian client will display in the menu available from the pause menu. Link labels can be built-in or custom (i.e., any text).

Packet ID State Bound To Field Name Field Type Notes
0x7B Configuration Client Links Count VarInt The number of links in the following array.
Links Is built-in Array Boolean Determines if the following label is built-in (from enum) or custom (text component).
Label VarInt Enum / Text Component See below.
URL String Valid URL.
ID Name Notes
0 Bug Report Displayed on connection error screen; included as a comment in the disconnection report.
1 Community Guidelines
2 Support
3 Status
4 Feedback
5 Community
6 Website
7 Forums
8 News
9 Announcements

Serverbound

No changes so far.

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