Pre-release protocol: Difference between revisions

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imported>Pokechu22
(20w08a, no changes)
imported>Pokechu22
(20w09a - new bool on piglins, and zombie pigman renamed to zombified piglin)
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This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.15.2, protocol 578]]) to the current pre-release (currently [[Protocol version numbers|20w08a, protocol 703]]). 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|1.15.2, protocol 578]]) to the current pre-release (currently [[Protocol version numbers|20w09a, protocol 704]]). 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 32: Line 32:
=== Hoglin ===
=== Hoglin ===


{{Metadata inherit|Pig|inherits=Animal|start_at=16}}
{{Metadata inherit|Hoglin|inherits=Animal|start_at=16}}


No additional metadata.
No additional metadata.
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=== Piglin ===
=== Piglin ===


{{Metadata inherit|Pig|inherits=Monster|start_at=15}}
{{Metadata inherit|Piglin|inherits=Monster|start_at=15}}


{| class="wikitable"
{| class="wikitable"
Line 54: Line 54:
  | Boolean
  | Boolean
  |colspan="2"| Is charging crossbow
  |colspan="2"| Is charging crossbow
| false
|-
| {{Metadata id|}}
| Boolean
|colspan="2"| Unknown
  | false
  | false
  |}
  |}
=== {{Change|Zombie Pigman|Zombified Piglin}} ===
{{Metadata inherit|{{Change|Zombie Pigman|Zombified Piglin}}|inherits=Zombie|start_at=18}}
No additional metadata.


== Block Actions ==
== Block Actions ==
Line 104: Line 115:
  | Protocol Version
  | Protocol Version
  | VarInt
  | VarInt
  | See [[protocol version numbers]] (currently {{change|578|703}})
  | See [[protocol version numbers]] (currently {{change|578|704}})
  |-
  |-
  | Server Address
  | Server Address

Revision as of 18:09, 26 February 2020

This page documents the changes from the last stable Minecraft release (currently 1.15.2, protocol 578) to the current pre-release (currently 20w09a, protocol 704). 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 added Current }} removed unchanged | (unchanged) | Pre }} }}

New/modified data types

No changes so far.

Entity Metadata

{{#vardefine:meta_prerelease|1}}

Hoglin

{{#if:Hoglin||Must specify the current entity ID for Template:Metadata inherit}} {{#vardefine:meta_current_entity|Hoglin}}

{{#if:{{#var:meta_prerelease}}| 

   {{#if:Animal
       | {{#if:
           | Extends {{#if:[[{{#varexists:meta_Animal|Entity metadata}}#Animal|Animal]]|[[{{#varexists:meta_Animal|Entity metadata}}#Animal|Animal]]}}{{#if:[[{{#varexists:meta_{{{pre_inherits}}}|Entity metadata}}#{{{pre_inherits}}}|{{{pre_inherits}}}]]|{{#if:[[{{#varexists:meta_Animal|Entity metadata}}#Animal|Animal]]| }}[[{{#varexists:meta_{{{pre_inherits}}}|Entity metadata}}#{{{pre_inherits}}}|{{{pre_inherits}}}]]}}.
           | Extends [[{{#varexists:meta_Animal|Entity metadata}}#Animal|Animal]].
       }}{{#if:16
           | {{#vardefine:meta_Hoglin|16}}
           {{#if:{{#varexists:meta_Animal}}|start_at in use when inherited entity Animal exists}}
           | {{#vardefine:meta_Hoglin|{{#var:meta_Animal|0}}}}
           {{#if:{{#varexists:meta_Animal}}||Inherited entity Animal does not exist}}
       }}{{#if:16
           | {{#vardefine:meta_pre_Hoglin|16}}
           {{#if:{{#varexists:meta_Animal}}|start_at in use when inherited entity Animal exists}}
           | {{#vardefine:meta_pre_Hoglin|{{#var:meta_pre_Animal|0}}}}
           {{#if:{{#varexists:meta_Animal}}||Inherited entity Animal does not exist}}
       }}
       | The base class.
       {{#vardefine:meta_Hoglin|16}}
       {{#vardefine:meta_pre_Hoglin|16}}
   }}

| 

   {{#if:Animal
       | Extends Animal.
       {{#if:16
           | {{#vardefine:meta_Hoglin|16}}
           {{#if:{{#varexists:meta_Animal}}|start_at in use when inherited entity Animal exists}}
           | {{#vardefine:meta_Hoglin|{{#var:meta_Animal|0}}}}
           {{#if:{{#varexists:meta_Animal}}||Inherited entity Animal does not exist}}
       }}
       | The base class.
       {{#vardefine:meta_Hoglin|16}}
   }}

}}

No additional metadata.

Piglin

{{#if:Piglin||Must specify the current entity ID for Template:Metadata inherit}} {{#vardefine:meta_current_entity|Piglin}}

{{#if:{{#var:meta_prerelease}}| 

   {{#if:Monster
       | {{#if:
           | Extends {{#if:[[{{#varexists:meta_Monster|Entity metadata}}#Monster|Monster]]|[[{{#varexists:meta_Monster|Entity metadata}}#Monster|Monster]]}}{{#if:[[{{#varexists:meta_{{{pre_inherits}}}|Entity metadata}}#{{{pre_inherits}}}|{{{pre_inherits}}}]]|{{#if:[[{{#varexists:meta_Monster|Entity metadata}}#Monster|Monster]]| }}[[{{#varexists:meta_{{{pre_inherits}}}|Entity metadata}}#{{{pre_inherits}}}|{{{pre_inherits}}}]]}}.
           | Extends [[{{#varexists:meta_Monster|Entity metadata}}#Monster|Monster]].
       }}{{#if:15
           | {{#vardefine:meta_Piglin|15}}
           {{#if:{{#varexists:meta_Monster}}|start_at in use when inherited entity Monster exists}}
           | {{#vardefine:meta_Piglin|{{#var:meta_Monster|0}}}}
           {{#if:{{#varexists:meta_Monster}}||Inherited entity Monster does not exist}}
       }}{{#if:15
           | {{#vardefine:meta_pre_Piglin|15}}
           {{#if:{{#varexists:meta_Monster}}|start_at in use when inherited entity Monster exists}}
           | {{#vardefine:meta_pre_Piglin|{{#var:meta_pre_Monster|0}}}}
           {{#if:{{#varexists:meta_Monster}}||Inherited entity Monster does not exist}}
       }}
       | The base class.
       {{#vardefine:meta_Piglin|15}}
       {{#vardefine:meta_pre_Piglin|15}}
   }}

| 

   {{#if:Monster
       | Extends Monster.
       {{#if:15
           | {{#vardefine:meta_Piglin|15}}
           {{#if:{{#varexists:meta_Monster}}|start_at in use when inherited entity Monster exists}}
           | {{#vardefine:meta_Piglin|{{#var:meta_Monster|0}}}}
           {{#if:{{#varexists:meta_Monster}}||Inherited entity Monster does not exist}}
       }}
       | The base class.
       {{#vardefine:meta_Piglin|15}}
   }}

}}

Index Type Meaning Default 
   {{#vardefine:cur_meta|{{#var:meta_{{#var:meta_current_entity}}}}}}
   {{#vardefine:pre_meta|{{#var:meta_pre_{{#var:meta_current_entity}}}}}}
   {{#switch:
added = 
       {{#if:|}}{{#if:{{#var:pre_meta}}|{{#if:| }}{{#var:pre_meta}}}}
       {{#vardefine:meta_pre_{{#var:meta_current_entity}}|{{#expr:{{#var:pre_meta}}+1}}}}
removed = 
       {{#if:{{#var:cur_meta}}|{{#var:cur_meta}}}}{{#if:|{{#if:{{#var:cur_meta}}| }}}}
       {{#vardefine:meta_{{#var:meta_current_entity}}|{{#expr:{{#var:cur_meta}}+1}}}}
= 
       {{#ifeq: {{#var:cur_meta}}|{{#var:pre_meta}} | {{#var:cur_meta}} | {{#if:{{#var:cur_meta}}|{{#var:cur_meta}}}}{{#if:{{#var:pre_meta}}|{{#if:{{#var:cur_meta}}| }}{{#var:pre_meta}}}} }}
       {{#vardefine:meta_{{#var:meta_current_entity}}|{{#expr:{{#var:cur_meta}}+1}}}}
       {{#vardefine:meta_pre_{{#var:meta_current_entity}}|{{#expr:{{#var:pre_meta}}+1}}}}
#default = 
       Invalid parameter to Template:Metadata id 
   }}

   {{#vardefineecho:cur_meta|{{#var:meta_{{#var:meta_current_entity}}}}}}
   {{#vardefine:meta_{{#var:meta_current_entity}}|{{#expr:{{#var:cur_meta}}+1}}}}
   {{#ifeq: |||Template:Metadata id must be used as {{Metadata id|}} (with an empty first parameter) for technical reasons}}

}}

Boolean Is baby false 
   {{#vardefine:cur_meta|{{#var:meta_{{#var:meta_current_entity}}}}}}
   {{#vardefine:pre_meta|{{#var:meta_pre_{{#var:meta_current_entity}}}}}}
   {{#switch:
added = 
       {{#if:|}}{{#if:{{#var:pre_meta}}|{{#if:| }}{{#var:pre_meta}}}}
       {{#vardefine:meta_pre_{{#var:meta_current_entity}}|{{#expr:{{#var:pre_meta}}+1}}}}
removed = 
       {{#if:{{#var:cur_meta}}|{{#var:cur_meta}}}}{{#if:|{{#if:{{#var:cur_meta}}| }}}}
       {{#vardefine:meta_{{#var:meta_current_entity}}|{{#expr:{{#var:cur_meta}}+1}}}}
= 
       {{#ifeq: {{#var:cur_meta}}|{{#var:pre_meta}} | {{#var:cur_meta}} | {{#if:{{#var:cur_meta}}|{{#var:cur_meta}}}}{{#if:{{#var:pre_meta}}|{{#if:{{#var:cur_meta}}| }}{{#var:pre_meta}}}} }}
       {{#vardefine:meta_{{#var:meta_current_entity}}|{{#expr:{{#var:cur_meta}}+1}}}}
       {{#vardefine:meta_pre_{{#var:meta_current_entity}}|{{#expr:{{#var:pre_meta}}+1}}}}
#default = 
       Invalid parameter to Template:Metadata id 
   }}

   {{#vardefineecho:cur_meta|{{#var:meta_{{#var:meta_current_entity}}}}}}
   {{#vardefine:meta_{{#var:meta_current_entity}}|{{#expr:{{#var:cur_meta}}+1}}}}
   {{#ifeq: |||Template:Metadata id must be used as {{Metadata id|}} (with an empty first parameter) for technical reasons}}

}}

Boolean Is charging crossbow false 
   {{#vardefine:cur_meta|{{#var:meta_{{#var:meta_current_entity}}}}}}
   {{#vardefine:pre_meta|{{#var:meta_pre_{{#var:meta_current_entity}}}}}}
   {{#switch:
added = 
       {{#if:|}}{{#if:{{#var:pre_meta}}|{{#if:| }}{{#var:pre_meta}}}}
       {{#vardefine:meta_pre_{{#var:meta_current_entity}}|{{#expr:{{#var:pre_meta}}+1}}}}
removed = 
       {{#if:{{#var:cur_meta}}|{{#var:cur_meta}}}}{{#if:|{{#if:{{#var:cur_meta}}| }}}}
       {{#vardefine:meta_{{#var:meta_current_entity}}|{{#expr:{{#var:cur_meta}}+1}}}}
= 
       {{#ifeq: {{#var:cur_meta}}|{{#var:pre_meta}} | {{#var:cur_meta}} | {{#if:{{#var:cur_meta}}|{{#var:cur_meta}}}}{{#if:{{#var:pre_meta}}|{{#if:{{#var:cur_meta}}| }}{{#var:pre_meta}}}} }}
       {{#vardefine:meta_{{#var:meta_current_entity}}|{{#expr:{{#var:cur_meta}}+1}}}}
       {{#vardefine:meta_pre_{{#var:meta_current_entity}}|{{#expr:{{#var:pre_meta}}+1}}}}
#default = 
       Invalid parameter to Template:Metadata id 
   }}

   {{#vardefineecho:cur_meta|{{#var:meta_{{#var:meta_current_entity}}}}}}
   {{#vardefine:meta_{{#var:meta_current_entity}}|{{#expr:{{#var:cur_meta}}+1}}}}
   {{#ifeq: |||Template:Metadata id must be used as {{Metadata id|}} (with an empty first parameter) for technical reasons}}

}}

Boolean Unknown false

{{#if:Zombie Pigman|Zombie Pigman}}{{#if:Zombified Piglin|{{#if:Zombie Pigman| }}Zombified Piglin}}

{{#if:{{#if:Zombie Pigman|Zombie Pigman}}{{#if:Zombified Piglin|{{#if:Zombie Pigman| }}Zombified Piglin}}||Must specify the current entity ID for Template:Metadata inherit}} {{#vardefine:meta_current_entity|{{#if:Zombie Pigman|Zombie Pigman}}{{#if:Zombified Piglin|{{#if:Zombie Pigman| }}Zombified Piglin}}}}

{{#if:{{#var:meta_prerelease}}| 

   {{#if:Zombie
       | {{#if:
           | Extends {{#if:[[{{#varexists:meta_Zombie|Entity metadata}}#Zombie|Zombie]]|[[{{#varexists:meta_Zombie|Entity metadata}}#Zombie|Zombie]]}}{{#if:[[{{#varexists:meta_{{{pre_inherits}}}|Entity metadata}}#{{{pre_inherits}}}|{{{pre_inherits}}}]]|{{#if:[[{{#varexists:meta_Zombie|Entity metadata}}#Zombie|Zombie]]| }}[[{{#varexists:meta_{{{pre_inherits}}}|Entity metadata}}#{{{pre_inherits}}}|{{{pre_inherits}}}]]}}.
           | Extends [[{{#varexists:meta_Zombie|Entity metadata}}#Zombie|Zombie]].
       }}{{#if:18
           | {{#vardefine:meta_{{#if:Zombie Pigman|Zombie Pigman}}{{#if:Zombified Piglin|{{#if:Zombie Pigman| }}Zombified Piglin}}|18}}
           {{#if:{{#varexists:meta_Zombie}}|start_at in use when inherited entity Zombie exists}}
           | {{#vardefine:meta_{{#if:Zombie Pigman|Zombie Pigman}}{{#if:Zombified Piglin|{{#if:Zombie Pigman| }}Zombified Piglin}}|{{#var:meta_Zombie|0}}}}
           {{#if:{{#varexists:meta_Zombie}}||Inherited entity Zombie does not exist}}
       }}{{#if:18
           | {{#vardefine:meta_pre_{{#if:Zombie Pigman|Zombie Pigman}}{{#if:Zombified Piglin|{{#if:Zombie Pigman| }}Zombified Piglin}}|18}}
           {{#if:{{#varexists:meta_Zombie}}|start_at in use when inherited entity Zombie exists}}
           | {{#vardefine:meta_pre_{{#if:Zombie Pigman|Zombie Pigman}}{{#if:Zombified Piglin|{{#if:Zombie Pigman| }}Zombified Piglin}}|{{#var:meta_pre_Zombie|0}}}}
           {{#if:{{#varexists:meta_Zombie}}||Inherited entity Zombie does not exist}}
       }}
       | The base class.
       {{#vardefine:meta_{{#if:Zombie Pigman|Zombie Pigman}}{{#if:Zombified Piglin|{{#if:Zombie Pigman| }}Zombified Piglin}}|18}}
       {{#vardefine:meta_pre_{{#if:Zombie Pigman|Zombie Pigman}}{{#if:Zombified Piglin|{{#if:Zombie Pigman| }}Zombified Piglin}}|18}}
   }}

| 

   {{#if:Zombie
       | Extends Zombie.
       {{#if:18
           | {{#vardefine:meta_{{#if:Zombie Pigman|Zombie Pigman}}{{#if:Zombified Piglin|{{#if:Zombie Pigman| }}Zombified Piglin}}|18}}
           {{#if:{{#varexists:meta_Zombie}}|start_at in use when inherited entity Zombie exists}}
           | {{#vardefine:meta_{{#if:Zombie Pigman|Zombie Pigman}}{{#if:Zombified Piglin|{{#if:Zombie Pigman| }}Zombified Piglin}}|{{#var:meta_Zombie|0}}}}
           {{#if:{{#varexists:meta_Zombie}}||Inherited entity Zombie does not exist}}
       }}
       | The base class.
       {{#vardefine:meta_{{#if:Zombie Pigman|Zombie Pigman}}{{#if:Zombified Piglin|{{#if:Zombie Pigman| }}Zombified Piglin}}|18}}
   }}

}}

No additional metadata.

Block Actions

No changes so far.

Inventories

No changes so far.

Plugin Channels

No changes so far.

Play

Clientbound

No changes so far.

Serverbound

No changes so far.

Handshaking

Clientbound

There are no clientbound packets in the Handshaking state, since the protocol immediately switches to a different state after the client sends the first packet.

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 {{#if:578|578}}{{#if:704|{{#if:578| }}704}})
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. Note that SRV records are a complete redirect, e.g. if _minecraft._tcp.example.com points to mc.example.org, users connecting to example.com will provide mc.example.org as server address in addition to connecting to it.
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.

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