Difference between revisions of "Pre-release protocol"

From wiki.vg
Jump to navigation Jump to search
(Steer Vehicle seems to be the same.)
(Updated to 1.21-pre2)
 
Line 1: Line 1:
−
This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.8.8, protocol 47]]) to the current pre-release (currently [[Protocol version numbers|15w31a, protocol 49]]). Note that this page contains bleeding-edge information that may not be completely or correctly documented.
+
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.
  
 
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.
 
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.
  
−
== Protocol history ==
+
== Contents ==
  
−
None so far.
+
<div style="float:right;">__TOC__</div>
  
−
== New/modified data types ==
+
=== Data types ===
  
−
None so far.
+
No changes documented so far.
  
−
== Handshaking ==
+
=== Packets ===
  
−
=== Clientbound ===
+
{| class="wikitable"
 +
! ID
 +
! Packet name
 +
!colspan="2"| Documentation
 +
|-
 +
!colspan="4"| Configuration clientbound
 +
{{PacketList|0x0F|Clientbound Report Details (configuration)|rel=added}}
 +
{{PacketList|0x10|Clientbound Server Links (configuration)|rel=added}}
 +
|-
 +
!colspan="4"| Play clientbound
 +
{{PacketList|0x7A|Clientbound Report Details (play)|rel=added}}
 +
{{PacketList|0x7B|Clientbound Server Links (play)|rel=added}}
 +
|-
 +
|}
 +
 
 +
== Handshake ==
  
 
No changes so far.
 
No changes so far.
  
−
=== Serverbound ===
+
== Status ==
  
−
==== Handshake ====
+
No changes so far.
  
−
This causes the server to switch into the target state.
+
== Login ==
  
−
{| class="wikitable"
+
No changes so far.
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
|rowspan="4"| 0x00
 
−
|rowspan="4"| Handshaking
 
−
|rowspan="4"| Server
 
−
| Protocol Version
 
−
| VarInt
 
−
| See [[protocol version numbers]] (currently {{Change|47|49}})
 
−
|-
 
−
| Server Address
 
−
| String
 
−
| hostname or IP, e.g. localhost or 127.0.0.1<!-- does this support IPv6? -->
 
−
|-
 
−
| Server Port
 
−
| Unsigned Short
 
−
| default is 25565
 
−
|-
 
−
| Next State
 
−
| VarInt
 
−
| 1 for [[#Status|status]], 2 for [[#Login|login]]
 
−
|}
 
  
−
== Play ==
+
== Configuration ==
  
 
=== Clientbound ===
 
=== Clientbound ===
  
−
No changes so far.
+
==== Clientbound Report Details (configuration) ====
−
 
 
−
=== Serverbound ===
 
−
 
 
−
==== Player Digging ====
 
  
−
Sent when the player mines a block. A Notchian server only accepts digging packets with coordinates within a 6-unit radius of the player's position.
+
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"
+
{| class="wikitable" {{added}}
 
  ! Packet ID
 
  ! Packet ID
 
  ! State
 
  ! State
 
  ! Bound To
 
  ! Bound To
−
  ! Field Name
+
  ! colspan="2"| Field Name
−
  ! Field Type
+
  ! colspan="2"| Field Type
 
  ! Notes
 
  ! Notes
 
  |-
 
  |-
−
  |rowspan="3"| 0x07
+
  | rowspan="3"| 0x0F
−
  |rowspan="3"| Play
+
  | rowspan="3"| Configuration
−
  |rowspan="3"| Server
+
  | rowspan="3"| Client
−
  | Status
+
  | colspan="2"| Details Count
−
  | Byte
+
  | colspan="2"| {{Type|VarInt}} (32)
−
  | The action the player is taking against the block (see below)
+
  | The number of details in the following array.
 
  |-
 
  |-
−
  | Location
+
  | rowspan="2"| Details
−
  | Position
+
| Title
−
  | Block position
+
| rowspan="2"| {{Type|Array}}
 +
  | {{Type|String}} (128)
 +
  |
 
  |-
 
  |-
−
  | Face
+
  | Description
−
  | Byte
+
  | {{Type|String}} (4096)
−
| The face being hit (see below)
+
  |
−
  |}
+
|}
 +
 
 +
==== Clientbound Server Links (configuration) ====
  
−
Status can (currently) be one of six values:
+
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"
+
{| class="wikitable" {{added}}
−
  ! Meaning
+
  ! Packet ID
−
  ! Value
+
  ! State
−
  |-
+
  ! Bound To
−
  | Started digging
+
  ! colspan="2"| Field Name
−
  | <code>0</code>
+
  ! colspan="2"| Field Type
−
  |-
+
  ! Notes
−
| Cancelled digging
 
−
| <code>1</code>
 
−
|-
 
−
| Finished digging
 
−
| <code>2</code>
 
 
  |-
 
  |-
−
  | Drop item stack
+
  | rowspan="4"| 0x10
−
  | <code>3</code>
+
| rowspan="4"| Configuration
 +
| rowspan="4"| Client
 +
| colspan="2"| Links Count
 +
| colspan="2"| {{Type|VarInt}}
 +
  | The number of links in the following array.
 
  |-
 
  |-
−
  | Drop item
+
  | rowspan="3"| Links
−
  | <code>4</code>
+
| Is built-in
 +
| rowspan="3"| {{Type|Array}}
 +
| {{Type|Boolean}}
 +
  | Determines if the following label is built-in (from enum) or custom (text component).
 
  |-
 
  |-
−
  | Shoot arrow / finish eating
+
  | Label
−
  | <code>5</code>
+
| {{Type|VarInt}} {{Type|Enum}} / {{Type|Text Component}}
 +
  | See below.
 
  |-
 
  |-
−
  | Swap item in Hand
+
  | URL
−
  | <code>6</code>
+
  | {{Type|String}}
−
  |}
+
  | Valid URL.
 +
|}
  
−
Notchian clients send a 0 (started digging) when they start digging and a 2 (finished digging) once they think they are finished. If digging is aborted, the client simply send a 1 (cancel digging).
 
  
−
Status code 4 (drop item) is a special case. In-game, when you use the Drop Item command (keypress 'q'), a dig packet with a status of 4, and all other values set to 0, is sent from client to server. Status code 3 is similar, but drops the entire stack.
+
{| class="wikitable" {{added}}
−
 
+
! ID
−
Status code 5 (shoot arrow / finish eating) is also a special case. The x, y and z fields are all set to 0 like above, with the exception of the face field, which is set to 255.
+
! Name
−
 
+
! Notes
−
Status code 6 is another special case. Used to swap or assign an item to the second hand. The rest of the fields (x, y, z and face) are all set to 0.
 
−
 
 
−
The face can be one of six values, representing the face being hit:
 
−
 
 
−
{| class="wikitable"
 
 
  |-
 
  |-
−
! Value
 
 
  | 0
 
  | 0
 +
| Bug Report
 +
| Displayed on connection error screen; included as a comment in the disconnection report.
 +
|-
 
  | 1
 
  | 1
 +
| Community Guidelines
 +
|
 +
|-
 
  | 2
 
  | 2
 +
| Support
 +
|
 +
|-
 
  | 3
 
  | 3
 +
| Status
 +
|
 +
|-
 
  | 4
 
  | 4
 +
| Feedback
 +
|
 +
|-
 
  | 5
 
  | 5
 +
| Community
 +
|
 +
|-
 +
| 6
 +
| Website
 +
|
 +
|-
 +
| 7
 +
| Forums
 +
|
 +
|-
 +
| 8
 +
| News
 +
|
 +
|-
 +
| 9
 +
| Announcements
 +
|
 
  |-
 
  |-
−
! Offset
 
−
| -Y
 
−
| +Y
 
−
| -Z
 
−
| +Z
 
−
| -X
 
−
| +X
 
 
  |}
 
  |}
  
 +
=== Serverbound ===
  
−
==== Held Item Change ====
+
No changes so far.
  
−
Sent when the player changes the slot selection
+
== Play ==
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
|rowspan="1"| {{Change|0x09|0x0A}}
 
−
|rowspan="1"| Play
 
−
|rowspan="1"| Server
 
−
| Slot
 
−
| Short
 
−
| The slot which the player has selected (0–8)
 
−
|}
 
  
 +
=== Clientbound ===
  
−
==== Animation ====
+
==== Clientbound Report Details (play) ====
  
−
Sent when the player's arm swings
+
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"
+
{| class="wikitable" {{added}}
 
  ! Packet ID
 
  ! Packet ID
 
  ! State
 
  ! State
 
  ! Bound To
 
  ! Bound To
−
  ! Field Name
+
  ! colspan="2"| Field Name
−
  ! Field Type
+
  ! colspan="2"| Field Type
 
  ! Notes
 
  ! Notes
 
  |-
 
  |-
−
  |rowspan="1"| {{Change|0x0A|0x0B}}
+
  | rowspan="3"| 0x7A
−
  |rowspan="1"| Play
+
| rowspan="3"| Configuration
−
  |rowspan="1"| Server
+
| rowspan="3"| Client
−
  | Hand
+
| colspan="2"| Details Count
−
  | Byte
+
| colspan="2"| {{Type|VarInt}} (32)
−
  | Hand used for the animation.
+
| The number of details in the following array.
−
  |}
+
|-
 +
  | rowspan="2"| Details
 +
| Title
 +
  | rowspan="2"| {{Type|Array}}
 +
  | {{Type|String}} (128)
 +
|
 +
|-
 +
  | Description
 +
  | {{Type|String}} (4096)
 +
  |
 +
|}
  
 +
==== Clientbound Server Links (play) ====
  
−
==== Entity Action ====
+
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).
  
−
Sent at least when crouching, leaving a bed, or sprinting. To send action animation to client use 0x28. The client will send this with Action ID = 3 when “Leave Bed” is clicked.
+
{| class="wikitable" {{added}}
−
 
 
−
{| class="wikitable"
 
 
  ! Packet ID
 
  ! Packet ID
 
  ! State
 
  ! State
 
  ! Bound To
 
  ! Bound To
−
  ! Field Name
+
  ! colspan="2"| Field Name
−
  ! Field Type
+
  ! colspan="2"| Field Type
 
  ! Notes
 
  ! Notes
 
  |-
 
  |-
−
  |rowspan="3"| {{Change|0x0B|0x0C}}
+
  | rowspan="4"| 0x7B
−
  |rowspan="3"| Play
+
  | rowspan="4"| Configuration
−
  |rowspan="3"| Server
+
  | rowspan="4"| Client
−
  | Entity ID
+
  | colspan="2"| Links Count
−
  | VarInt
+
  | colspan="2"| {{Type|VarInt}}
−
  | Player ID
+
  | The number of links in the following array.
 
  |-
 
  |-
−
  | Action ID
+
  | rowspan="3"| Links
−
  | VarInt
+
| Is built-in
−
  | The ID of the action, see below
+
| rowspan="3"| {{Type|Array}}
 +
  | {{Type|Boolean}}
 +
  | Determines if the following label is built-in (from enum) or custom (text component).
 
  |-
 
  |-
−
  | Jump Boost
+
  | Label
−
  | VarInt
+
  | {{Type|VarInt}} {{Type|Enum}} / {{Type|Text Component}}
−
  | Horse jump boost. Ranged from 0 -> 100.
+
  | See below.
−
  |}
+
|-
−
 
+
  | URL
−
Action ID can be one of the following values:
+
| {{Type|String}}
 +
| Valid URL.
 +
|}
  
−
{| class="wikitable"
+
{| class="wikitable" {{added}}
 
  ! ID
 
  ! ID
−
  ! Action
+
  ! Name
 +
! Notes
 
  |-
 
  |-
 
  | 0
 
  | 0
−
  | Crouch
+
  | Bug Report
 +
| Displayed on connection error screen; included as a comment in the disconnection report.
 
  |-
 
  |-
 
  | 1
 
  | 1
−
  | Uncrouch
+
  | Community Guidelines
 +
|
 
  |-
 
  |-
 
  | 2
 
  | 2
−
  | Leave bed
+
  | Support
 +
|
 
  |-
 
  |-
 
  | 3
 
  | 3
−
  | Start sprinting
+
  | Status
 +
|
 
  |-
 
  |-
 
  | 4
 
  | 4
−
  | Stop sprinting
+
  | Feedback
 +
|
 
  |-
 
  |-
 
  | 5
 
  | 5
−
  | Jump with horse
+
  | Community
 +
|
 +
|-
 +
| 6
 +
| Website
 +
|
 
  |-
 
  |-
−
  | <Strike>6</Strike>
+
  | 7
−
  | <Strike>Open inventory</Strike>
+
  | Forums
−
  |}
+
  |  
−
 
 
−
 
 
−
==== Steer Vehicle ====
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
 
  |-
 
  |-
−
  |rowspan="3"| {{Change|0x0C|0x0D}}
+
  | 8
−
|rowspan="3"| Play
+
  | News
−
|rowspan="3"| Server
+
  |  
−
| Sideways
 
−
  | Float
 
−
  | Positive to the left of the player
 
 
  |-
 
  |-
−
  | Forward
+
  | 9
−
  | Float
+
  | Announcements
−
  | Positive forward
+
  |  
 
  |-
 
  |-
−
| Flags
 
−
| Unsigned Byte
 
−
| Bit mask. 0x1: jump, 0x2: unmount
 
 
  |}
 
  |}
−
 
−
== Status ==
 
−
 
−
=== Clientbound ===
 
−
 
−
No changes so far.
 
  
 
=== Serverbound ===
 
=== Serverbound ===
Line 280: Line 279:
 
No changes so far.
 
No changes so far.
  
−
== Login ==
+
[[Category:Minecraft Modern]]
−
 
 
−
=== Clientbound ===
 
−
 
 
−
No changes so far.
 
−
 
 
−
=== Serverbound ===
 
−
 
 
−
No changes so far.
 

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.

Retrieved from "https://wiki.vg/index.php?title=Pre-release_protocol&oldid=19307"