Difference between revisions of "Pre-release protocol"
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(Clean slate for next snapshots) |
(Update for 1.12.2-pre1) |
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| − | This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.12 | + | This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.12.1, protocol 338]]) to the current pre-release (currently [[Protocol version numbers|1.12.2-pre1, protocol 339]]). 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. | ||
| Line 13: | Line 13: | ||
=== Packets === | === Packets === | ||
| − | |||
{| class="wikitable" | {| class="wikitable" | ||
! ID | ! ID | ||
| Line 21: | Line 20: | ||
!colspan="4"| Handshaking serverbound | !colspan="4"| Handshaking serverbound | ||
{{PacketList|0x00|Handshake}} | {{PacketList|0x00|Handshake}} | ||
| + | |- | ||
| + | !colspan="4"| Play clientbound | ||
| + | {{PacketList|0x1F|Keep Alive (clientbound)}} | ||
| + | |- | ||
| + | !colspan="4"| Play serverbound | ||
| + | {{PacketList|0x0B|Keep Alive (serverbound)}} | ||
|} | |} | ||
| − | |||
== New/modified data types == | == New/modified data types == | ||
| Line 31: | Line 35: | ||
No changes so far. | No changes so far. | ||
| − | |||
| − | |||
== Play == | == Play == | ||
| Line 38: | Line 40: | ||
=== Clientbound === | === Clientbound === | ||
| − | + | ==== Keep Alive (clientbound) ==== | |
| + | |||
| + | The server will frequently send out a keep-alive, each containing a random ID. The client must respond with the same packet. If the client does not respond to them for over 30 seconds, the server kicks the client. Vice versa, if the server does not send any keep-alives for 20 seconds, the client will disconnect and yields a "Timed out" exception. | ||
| + | |||
| + | {| class="wikitable" | ||
| + | ! Packet ID | ||
| + | ! State | ||
| + | ! Bound To | ||
| + | ! Field Name | ||
| + | ! Field Type | ||
| + | ! Notes | ||
| + | |- | ||
| + | |rowspan="1"| 0x1F | ||
| + | |rowspan="1"| Play | ||
| + | |rowspan="1"| Client | ||
| + | | Keep Alive ID | ||
| + | | {{Change|VarInt|Long}} | ||
| + | | | ||
| + | |} | ||
| + | |||
=== Serverbound === | === Serverbound === | ||
| − | + | ==== Keep Alive (serverbound) ==== | |
| + | |||
| + | The server will frequently send out a keep-alive, each containing a random ID. The client must respond with the same packet. | ||
| + | |||
| + | {| class="wikitable" | ||
| + | ! Packet ID | ||
| + | ! State | ||
| + | ! Bound To | ||
| + | ! Field Name | ||
| + | ! Field Type | ||
| + | ! Notes | ||
| + | |- | ||
| + | | 0x0B | ||
| + | | Play | ||
| + | | Server | ||
| + | | Keep Alive ID | ||
| + | | {{Change|VarInt|Long}} | ||
| + | | | ||
| + | |} | ||
| + | |||
== Handshaking == | == Handshaking == | ||
| Line 51: | Line 91: | ||
=== Serverbound === | === Serverbound === | ||
| − | |||
| − | |||
==== Handshake ==== | ==== Handshake ==== | ||
| Line 71: | Line 109: | ||
| Protocol Version | | Protocol Version | ||
| VarInt | | VarInt | ||
| − | | See [[protocol version numbers]] (currently {{change| | + | | See [[protocol version numbers]] (currently {{change|338|339}}) |
|- | |- | ||
| Server Address | | Server Address | ||
| Line 85: | Line 123: | ||
| 1 for [[#Status|status]], 2 for [[#Login|login]] | | 1 for [[#Status|status]], 2 for [[#Login|login]] | ||
|} | |} | ||
| − | |||
| − | |||
== Status == | == Status == | ||
| Line 107: | Line 143: | ||
No changes so far. | No changes so far. | ||
| + | |||
| + | |||
| + | [[Category:Minecraft Modern]] | ||
Revision as of 16:38, 13 September 2017
This page documents the changes from the last stable Minecraft release (currently 1.12.1, protocol 338) to the current pre-release (currently 1.12.2-pre1, protocol 339). 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 so far.
Packets
| ID | Packet name | Documentation | |
|---|---|---|---|
| Handshaking serverbound | |||
| 0x00 | Handshake | Current | Pre |
| Play clientbound | |||
| 0x1F | Keep Alive (clientbound) | Current | Pre |
| Play serverbound | |||
| 0x0B | Keep Alive (serverbound) | Current | Pre |
New/modified data types
No changes so far.
Block Actions
No changes so far.
Play
Clientbound
Keep Alive (clientbound)
The server will frequently send out a keep-alive, each containing a random ID. The client must respond with the same packet. If the client does not respond to them for over 30 seconds, the server kicks the client. Vice versa, if the server does not send any keep-alives for 20 seconds, the client will disconnect and yields a "Timed out" exception.
| Packet ID | State | Bound To | Field Name | Field Type | Notes |
|---|---|---|---|---|---|
| 0x1F | Play | Client | Keep Alive ID |
Serverbound
Keep Alive (serverbound)
The server will frequently send out a keep-alive, each containing a random ID. The client must respond with the same packet.
| Packet ID | State | Bound To | Field Name | Field Type | Notes |
|---|---|---|---|---|---|
| 0x0B | Play | Server | Keep Alive ID |
Handshaking
Clientbound
No changes so far.
Serverbound
Handshake
This causes the server to switch into the target state.
| Packet ID | State | Bound To | Field Name | Field Type | Notes |
|---|---|---|---|---|---|
| 0x00 | Handshaking | Server | Protocol Version | VarInt | See protocol version numbers (currently |
| Server Address | String | Hostname or IP, e.g. localhost or 127.0.0.1, that was used to connect. The Notchian server does not use this information. | |||
| Server Port | Unsigned Short | Default is 25565. The Notchian server does not use this information. | |||
| Next State | VarInt Enum | 1 for status, 2 for login |
Status
Clientbound
No changes so far.
Serverbound
No changes so far.
Login
Clientbound
No changes so far.
Serverbound
No changes so far.
