Difference between revisions of "Pre-release protocol"

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(Updated to 1.21-pre2)
 
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−
This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.9.4, protocol 110]]) to the current pre-release (currently [[Protocol version numbers|16w20a, protocol 201]]). 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.
Line 9: Line 9:
 
=== Data types ===
 
=== Data types ===
  
−
No changes so far.
+
No changes documented so far.
  
 
=== Packets ===
 
=== Packets ===
Line 18: Line 18:
 
  !colspan="2"| Documentation
 
  !colspan="2"| Documentation
 
  |-
 
  |-
−
  !colspan="4"| Handshaking serverbound
+
  !colspan="4"| Configuration clientbound
−
{{PacketList|0x00|Handshake}}
+
{{PacketList|0x0F|Clientbound Report Details (configuration)|rel=added}}
 +
{{PacketList|0x10|Clientbound Server Links (configuration)|rel=added}}
 
  |-
 
  |-
 
  !colspan="4"| Play clientbound
 
  !colspan="4"| Play clientbound
−
{{PacketList|0x19|Named Sound Effect}}
+
{{PacketList|0x7A|Clientbound Report Details (play)|rel=added}}
−
{{PacketList|0x46|Sound Effect}}
+
{{PacketList|0x7B|Clientbound Server Links (play)|rel=added}}
−
  |}
+
  |-
 +
|}
 +
 
 +
== 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.
  
−
== New/modified data types ==
+
{| 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)
 +
|
 +
|}
  
−
=== Entity Metadata ===
+
==== Clientbound Server Links (configuration) ====
  
−
Format is now an array of entries, each of which looks like the following:
+
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}}
−
  ! Name
+
  ! Packet ID
−
  ! Type
+
! State
−
  ! Meaning
+
! 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.
 
  |-
 
  |-
−
  | Index
+
  | rowspan="3"| Links
−
  | Unsigned Byte
+
  | Is built-in
−
  | Unique index key determining the meaning of the following value, see the table below. If this is <code>0xff</code> then the it is the end of the Entity Metadata array and no more is read.
+
  | rowspan="3"| {{Type|Array}}
 +
| {{Type|Boolean}}
 +
| Determines if the following label is built-in (from enum) or custom (text component).
 
  |-
 
  |-
−
  | Type
+
  | Label
−
  | Optional Byte Enum
+
  | {{Type|VarInt}} {{Type|Enum}} / {{Type|Text Component}}
−
  | Only if Index is not <code>0xff</code>; the type of the index, see the table below
+
  | See below.
 
  |-
 
  |-
−
  | Value
+
  | URL
−
  | Optional ''value of Type''
+
  | {{Type|String}}
−
  | Only if Index is not <code>0xff</code>: the value of the metadata field
+
  | Valid URL.
−
|}
+
|}
 +
 
  
−
{| class="wikitable"
+
{| class="wikitable" {{added}}
−
  ! Value of Type field
+
  ! ID
−
  ! [[Data types|Type]] of Value field
+
  ! Name
 
  ! Notes
 
  ! Notes
 
  |-
 
  |-
 
  | 0
 
  | 0
−
  | Byte
+
  | Bug Report
−
  |  
+
  | Displayed on connection error screen; included as a comment in the disconnection report.
 
  |-
 
  |-
 
  | 1
 
  | 1
−
  | VarInt
+
  | Community Guidelines
 
  |  
 
  |  
 
  |-
 
  |-
 
  | 2
 
  | 2
−
  | Float
+
  | Support
 
  |  
 
  |  
 
  |-
 
  |-
 
  | 3
 
  | 3
−
  | String
+
  | Status
 
  |  
 
  |  
 
  |-
 
  |-
 
  | 4
 
  | 4
−
  | [[Chat]]
+
  | Feedback
 
  |  
 
  |  
 
  |-
 
  |-
 
  | 5
 
  | 5
−
  | [[Slot]]
+
  | Community
 
  |  
 
  |  
 
  |-
 
  |-
 
  | 6
 
  | 6
−
  | Boolean
+
  | Website
 
  |  
 
  |  
 
  |-
 
  |-
 
  | 7
 
  | 7
−
  | Rotation
+
  | Forums
−
  | 3 floats: rotation on x, rotation on y, rotation on z
+
  |  
 
  |-
 
  |-
 
  | 8
 
  | 8
−
  | [[Data Types#Position|Position]]
+
  | News
 
  |  
 
  |  
 
  |-
 
  |-
 
  | 9
 
  | 9
−
  | OptPosition (Boolean + Optional Position)
+
  | Announcements
−
  | Position is present if the Boolean is set to true
+
  |  
 
  |-
 
  |-
−
| 10
 
−
| Direction (VarInt)
 
−
| (Down = 0, Up = 1, North = 2, South = 3, West = 4, East = 5)
 
−
|-
 
−
| 11
 
−
| OptUUID (Boolean + Optional UUID)
 
−
| UUID is present if the Boolean is set to true
 
−
|-
 
−
| 12
 
−
| BlockID (VarInt)
 
−
| <code><nowiki>id &lt;&lt; 4 | data</nowiki></code>
 
 
  |}
 
  |}
  
−
Entity classes also recursively use fields from classes they extend.
+
=== Serverbound ===
  
−
{| class="wikitable"
+
No changes so far.
−
! Entity class
 
−
! Index
 
−
! Type
 
−
! style="width: 250px" colspan="2" |  Meaning
 
−
|-
 
−
|rowspan="13"| Entity
 
−
|rowspan="8"| 0
 
−
|rowspan="8"| Byte
 
−
! Bit Mask !! Meaning
 
−
|-
 
−
| 0x01 || On Fire
 
−
|-
 
−
| 0x02 || Crouched
 
−
|-
 
−
| 0x08 || Sprinting
 
−
|-
 
−
| 0x10 || Eating/Drinking/Blocking
 
−
|-
 
−
| 0x20 || Invisible
 
−
|-
 
−
| 0x40 || Glowing Effect
 
−
|-
 
−
| 0x80 || Flying with Elytra
 
−
|-
 
−
| 1
 
−
| VarInt
 
−
| colspan="2" | Air
 
−
|-
 
−
| 2
 
−
| String
 
−
| colspan="2" | Custom Name
 
−
|-
 
−
| 3
 
−
| Boolean
 
−
| colspan="2" | Is Custom Name Visible
 
−
|-
 
−
| 4
 
−
| Boolean
 
−
| colspan="2" | Is Silent
 
−
|- style="background-color: #d9ead3;"
 
−
| 5
 
−
| Boolean
 
−
| colspan="2" | No Gravity
 
−
|-
 
−
| Potion <sup>extends Entity</sup>
 
−
| {{change|5|6}}
 
−
| [[Slot]]
 
−
| colspan="2" | Potion which is thrown
 
−
|-
 
−
| FallingBlock <sup>extends Entity</sup>
 
−
| {{change|5|6}}
 
−
| [[Data Types#Position|Position]]
 
−
| colspan="2" | Spawn Position
 
−
|-
 
−
|rowspan="4"| AreaEffectButt <sup>extends Entity</sup>
 
−
| {{change|5|6}}
 
−
| Float
 
−
| colspan="2" | Radius
 
−
|-
 
−
| {{change|6|7}}
 
−
| VarInt
 
−
| colspan="2" | Color (only for mob spell particle)
 
−
|-
 
−
| {{change|7|8}}
 
−
| Boolean
 
−
| colspan="2" | Ignore radius and show effect as single point, not area
 
−
|-
 
−
| {{change|8|9}}
 
−
| VarInt
 
−
| colspan="2" | Particle ID
 
−
|-
 
−
| Arrow <sup>extends Entity</sup>
 
−
| {{change|5|6}}
 
−
| Byte
 
−
| colspan="2" | Is Critical
 
−
|-
 
−
| TippedArrow <sup>extends Arrow</sup>
 
−
| {{change|6|7}}
 
−
| VarInt
 
−
| colspan="2" | Color
 
−
|-
 
−
|rowspan="6"| Boat <sup>extends Entity</sup>
 
−
| {{change|5|6}}
 
−
| VarInt
 
−
| colspan="2" | Time Since Last Hit
 
−
|-
 
−
| {{change|6|7}}
 
−
| VarInt
 
−
| colspan="2" | Forward Direction
 
−
|-
 
−
| {{change|7|8}}
 
−
| Float
 
−
| colspan="2" | Damage Taken
 
−
|-
 
−
| {{change|8|9}}
 
−
| VarInt
 
−
| colspan="2" | Type
 
−
|-
 
−
| {{change|9|10}}
 
−
| Boolean
 
−
| colspan="2" | Right paddle turning
 
−
|-
 
−
| {{change|10|11}}
 
−
| Boolean
 
−
| colspan="2" | Left paddle turning
 
−
|-
 
−
|rowspan="2"| EnderCrystal <sup>extends Entity</sup>
 
−
| {{change|5|6}}
 
−
| OptPosition
 
−
| colspan="2" | Beam Target
 
−
|-
 
−
| {{change|6|7}}
 
−
| Boolean
 
−
| colspan="2" | Show Bottom
 
−
|-
 
−
| Fireball <sup>extends Entity</sup>
 
−
|colspan="4"| ''no additional metadata''
 
−
|-
 
−
| WitherSkull <sup>extends Fireball</sup>
 
−
| {{change|5|6}}
 
−
| Boolean
 
−
| colspan="2" | Invulnerable
 
−
|-
 
−
| Fireworks <sup>extends Entity</sup>
 
−
| {{change|5|6}}
 
−
| [[Slot]]
 
−
| colspan="2" | Firework Info
 
−
|-
 
−
| Hanging <sup>extends Entity</sup>
 
−
|colspan="4"| ''no additional metadata''
 
−
|-
 
−
|rowspan="2"| ItemFrame <sup>extends Hanging</sup>
 
−
| {{change|5|6}}
 
−
| [[Slot]]
 
−
| colspan="2" | Item
 
−
|-
 
−
| {{change|6|7}}
 
−
| VarInt
 
−
| colspan="2" | Rotation
 
−
|-
 
−
| Item <sup>extends Entity</sup>
 
−
| {{change|5|6}}
 
−
| [[Slot]]
 
−
| colspan="2" | Item
 
−
|-
 
−
|rowspan="5"| Living <sup>extends Entity</sup>
 
−
| {{change|5|6}}
 
−
| Byte
 
−
|colspan="3"| Likely used to limit placing blocks from both hands at the same time.
 
−
|-
 
−
! Bit mask
 
−
! Meaning
 
−
|-
 
−
| 0x01
 
−
| Is hand active
 
−
|-
 
−
| 0x02
 
−
| Active hand (0 = main hand, 1 = offhand)
 
−
|-
 
−
| {{change|6|7}}
 
−
| Float
 
−
| colspan="2" | Health
 
−
|-
 
−
| {{change|7|8}}
 
−
| VarInt
 
−
| colspan="2" | Potion Effect Color
 
−
|-
 
−
| {{change|8|9}}
 
−
| Boolean
 
−
| colspan="2" | Is Potion Effect Ambient
 
−
|-
 
−
| {{change|9|10}}
 
−
| VarInt
 
−
| colspan="2" | Number of Arrows in Entity
 
−
|-
 
−
|rowspan="8"| ArmorStand <sup>extends Living</sup>
 
−
|-
 
−
| {{change|10|11}}
 
−
| Byte
 
−
| colspan="2" | Status bit mask
 
−
|-
 
−
| {{change|11|12}}
 
−
| Vector3F
 
−
| colspan="2" | Head rotation
 
−
|-
 
−
| {{change|12|13}}
 
−
| Vector3F
 
−
| colspan="2" | Body rotation
 
−
|-
 
−
| {{change|13|14}}
 
−
| Vector3F
 
−
| colspan="2" | Left arm rotation
 
−
|-
 
−
| {{change|14|15}}
 
−
| Vector3F
 
−
| colspan="2" | Right arm rotation
 
−
|-
 
−
| {{change|15|16}}
 
−
| Vector3F
 
−
| colspan="2" | Left leg rotation
 
−
|-
 
−
| {{change|16|17}}
 
−
| Vector3F
 
−
| colspan="2" | Right leg rotation
 
−
|-
 
−
| Insentient <sup>extends Living</sup>
 
−
| {{change|10|11}}
 
−
| Byte
 
−
| colspan="2" | Status bit mask (NoAI, Left handed)
 
−
|-
 
−
| Ambient <sup>extends Insentient</sup>
 
−
|colspan="4"| ''no additional metadata''
 
−
|-
 
−
| Bat <sup>extends Ambient</sup>
 
−
| {{change|11|12}}
 
−
| Byte
 
−
| colspan="2" | Is Hanging
 
−
|-
 
−
| Creature <sup>extends Insentient</sup>
 
−
|colspan="4"| ''no additional metadata''
 
−
|-
 
−
| Ageable <sup>extends Creature</sup>
 
−
| {{change|11|12}}
 
−
| Boolean
 
−
| colspan="2" | Is Baby
 
−
|- style="background-color: #d9ead3;"
 
−
| PolarBear <sup>extends Ageable</sup>
 
−
| 13
 
−
| Boolean
 
−
| colspan="2" | Is Standing
 
−
|-
 
−
| Animal <sup>extends Ageable</sup>
 
−
|colspan="4"| ''no additional metadata''
 
−
|-
 
−
|rowspan="5"| Horse <sup>extends Animal</sup>
 
−
| {{change|12|13}}
 
−
| Byte
 
−
| colspan="2" | Status bit mask
 
−
|-
 
−
| {{change|13|14}}
 
−
| VarInt
 
−
| colspan="2" | Type
 
−
|-
 
−
| {{change|14|15}}
 
−
| VarInt
 
−
| colspan="2" | Variant
 
−
|-
 
−
| {{change|15|16}}
 
−
| OptUUID
 
−
| colspan="2" | Owner's UUID
 
−
|-
 
−
| {{change|16|17}}
 
−
| VarInt
 
−
| colspan="2" | Armor
 
−
|-
 
−
| Pig <sup>extends Animal</sup>
 
−
| {{change|12|13}}
 
−
| Boolean
 
−
| colspan="2" | Has Saddle
 
−
|-
 
−
| Rabbit <sup>extends Animal</sup>
 
−
| {{change|12|13}}
 
−
| VarInt
 
−
| colspan="2" | Type
 
−
|-
 
−
| Sheep <sup>extends Animal</sup>
 
−
| {{change|12|13}}
 
−
| Byte
 
−
| colspan="2" | Status bit mask
 
−
|-
 
−
|rowspan="2"| TameableAnimal <sup>extends Animal</sup>
 
−
| {{change|12|13}}
 
−
| Byte
 
−
| colspan="2" | Status bit mask (sitting, tamed)
 
−
|-
 
−
| {{change|13|14}}
 
−
| OptUUID
 
−
| colspan="2" | Owner's UUID
 
−
|-
 
−
| Ocelot <sup>extends TameableAnimal</sup>
 
−
| {{change|14|15}}
 
−
| VarInt
 
−
| colspan="2" | Type
 
−
|-
 
−
|rowspan="3"| Wolf <sup>extends TameableAnimal</sup>
 
−
| {{change|14|15}}
 
−
| Float
 
−
| colspan="2" | Damage Taken (used for tail rotation)
 
−
|-
 
−
| {{change|15|16}}
 
−
| Boolean
 
−
| colspan="2" | Is Begging
 
−
|-
 
−
| {{change|16|17}}
 
−
| VarInt
 
−
| colspan="2" | Collar Color
 
−
|-
 
−
| Villager <sup>extends Ageable</sup>
 
−
| {{change|12|13}}
 
−
| VarInt
 
−
| colspan="2" | Profession (Farmer = 0, Librarian = 1, Priest = 2, Blacksmith = 3, Butcher = 4)
 
−
|-
 
−
| Golem <sup>extends Creature</sup>
 
−
|colspan="4"| ''no additional metadata''
 
−
|-
 
−
| IronGolem <sup>extends Golem</sup>
 
−
| {{change|11|12}}
 
−
| Byte
 
−
| colspan="2" | Is Player Created
 
−
|-
 
−
|rowspan="3"| Shulker <sup>extends Golem</sup>
 
−
| {{change|11|12}}
 
−
| Direction
 
−
| colspan="2" | Facing Direction
 
−
|-
 
−
| {{change|12|13}}
 
−
| OptPosition
 
−
| colspan="2" | Attachment Position
 
−
|-
 
−
| {{change|13|14}}
 
−
| Byte
 
−
| colspan="2" | Shield Height
 
−
|-
 
−
| Monster <sup>extends Creature</sup>
 
−
|colspan="4"| ''no additional metadata''
 
−
|-
 
−
| Blaze <sup>extends Monster</sup>
 
−
| {{change|11|12}}
 
−
| Byte
 
−
| colspan="2" | Is On Fire
 
−
|-
 
−
|rowspan="3"| Creeper <sup>extends Monster</sup>
 
−
| {{change|11|12}}
 
−
| VarInt
 
−
| colspan="2" | State (-1 = Idle, 1 = Fuse)
 
−
|-
 
−
| {{change|12|13}}
 
−
| Boolean
 
−
| colspan="2" | Is Powered
 
−
|-
 
−
| {{change|13|14}}
 
−
| Boolean
 
−
| colspan="2" | Is Ignited
 
−
|-
 
−
|rowspan="2"| Guardian <sup>extends Monster</sup>
 
−
| {{change|11|12}}
 
−
| Byte
 
−
| colspan="2" | Status bit mask (elderly, retracting spikes)
 
−
|-
 
−
| {{change|12|13}}
 
−
| VarInt
 
−
| colspan="2" | Target EID
 
−
|-
 
−
|rowspan="2"| Skeleton <sup>extends Monster</sup>
 
−
| {{change|11|12}}
 
−
| VarInt
 
−
| colspan="2" | Type
 
−
|-
 
−
| {{change|12|13}}
 
−
| Boolean
 
−
| colspan="2" | ''Unknown (something hand related)''
 
−
|-
 
−
| Spider <sup>extends Monster</sup>
 
−
| {{change|11|12}}
 
−
| Byte
 
−
| colspan="2" | Is Climbing
 
−
|-
 
−
| Witch <sup>extends Monster</sup>
 
−
| {{change|11|12}}
 
−
| Boolean
 
−
| colspan="2" | Is Aggresive
 
−
|-
 
−
|rowspan="4"| Wither <sup>extends Monster</sup>
 
−
| {{change|11|12}}
 
−
| VarInt
 
−
| colspan="2" | First Head's Target
 
−
|-
 
−
| {{change|12|13}}
 
−
| VarInt
 
−
| colspan="2" | Second Head's Target
 
−
|-
 
−
| {{change|13|14}}
 
−
| VarInt
 
−
| colspan="2" | Third Head's Target
 
−
|-
 
−
| {{change|14|15}}
 
−
| VarInt
 
−
| colspan="2" | Invulnerable Time
 
−
|-
 
−
|rowspan="4"| Zombie <sup>extends Monster</sup>
 
−
| {{change|11|12}}
 
−
| Boolean
 
−
| colspan="2" | Is Baby
 
−
|-
 
−
| {{change|12|13}}
 
−
| VarInt
 
−
| colspan="2" | Is Villager (profession)
 
−
|-
 
−
| {{change|13|14}}
 
−
| Boolean
 
−
| colspan="2" | Is Converting
 
−
|-
 
−
| {{change|14|15}}
 
−
| Boolean
 
−
| colspan="2" | Are Hands Rised Up
 
−
|-
 
−
|rowspan="2"| Enderman <sup>extends Monster</sup>
 
−
| {{change|11|12}}
 
−
| Block ID
 
−
| colspan="2" | Carried Block
 
−
|-
 
−
| {{change|12|13}}
 
−
| Boolean
 
−
| colspan="2" | Is Screaming
 
−
|-
 
−
| EnderDragon <sup>extends Insentient</sup>
 
−
| {{change|11|12}}
 
−
| VarInt
 
−
| colspan="2" | Dragon Phase
 
−
|-
 
−
| Flying <sup>extends Insentient</sup>
 
−
|colspan="4"| ''no additional metadata''
 
−
|-
 
−
| Ghast <sup>extends Flying</sup>
 
−
| {{change|11|12}}
 
−
| Boolean
 
−
| colspan="2" | Is Attacking
 
−
|-
 
−
| Slime <sup>extends Insentient</sup>
 
−
| {{change|11|12}}
 
−
| VarInt
 
−
| colspan="2" | Size
 
−
|-
 
−
|rowspan="6"| Minecart <sup>extends Entity</sup>
 
−
| {{change|5|6}}
 
−
| VarInt
 
−
| colspan="2" | Shaking Power
 
−
|-
 
−
| {{change|6|7}}
 
−
| VarInt
 
−
| colspan="2" | Shaking Direction
 
−
|-
 
−
| {{change|7|8}}
 
−
| Float
 
−
| colspan="2" | Shaking Multiplier
 
−
|-
 
−
| {{change|8|9}}
 
−
| VarInt
 
−
| colspan="2" | Block ID and Meta
 
−
|-
 
−
| {{change|9|10}}
 
−
| VarInt
 
−
| colspan="2" | Block Y Position
 
−
|-
 
−
| {{change|10|11}}
 
−
| Boolean
 
−
| colspan="2" | Show Block
 
−
|-
 
−
|rowspan="2"| MinecartCommandBlock <sup>extends Minecart</sup>
 
−
| {{change|11|12}}
 
−
| String
 
−
| colspan="2" | Command
 
−
|-
 
−
| {{change|12|13}}
 
−
| [[Chat]]
 
−
| colspan="2" | Last Output
 
−
|-
 
−
| MinecartFurnace <sup>extends Minecart</sup>
 
−
| {{change|11|12}}
 
−
| Boolean
 
−
| colspan="2" | Is Powered
 
−
|-
 
−
| TNTPrimed <sup>extends Entity</sup>
 
−
| {{change|5|6}}
 
−
| VarInt
 
−
| colspan="2" | Fuse Time
 
−
|}
 
  
−
Entity classes also recursively use fields from classes they extend.
+
== Play ==
−
 
 
−
== Handshaking ==
 
  
 
=== Clientbound ===
 
=== Clientbound ===
  
−
No changes so far.
+
==== Clientbound Report Details (play) ====
−
 
 
−
=== Serverbound ===
 
−
 
 
−
No changes so far.
 
−
 
 
−
==== Handshake ====
 
  
−
This causes the server to switch into the target state.
+
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="4"| 0x00
+
  | rowspan="3"| 0x7A
−
  |rowspan="4"| Handshaking
+
  | rowspan="3"| Configuration
−
  |rowspan="4"| Server
+
  | rowspan="3"| Client
−
  | Protocol Version
+
  | colspan="2"| Details Count
−
  | VarInt
+
  | colspan="2"| {{Type|VarInt}} (32)
−
| See [[protocol version numbers]] (currently {{change|110|201}})
+
| The number of details in the following array.
 
  |-
 
  |-
−
  | Server Address
+
  | rowspan="2"| Details
−
  | String
+
  | Title
−
  | Hostname or IP, e.g. localhost or 127.0.0.1, that was used to connect.  The Notchian server does not use this information.
+
  | rowspan="2"| {{Type|Array}}
−
|-
+
  | {{Type|String}} (128)
−
  | Server Port
+
  |
−
| Unsigned Short
 
−
  | Default is 25565.  The Notchian server does not use this information.
 
 
  |-
 
  |-
−
  | Next State
+
  | Description
−
  | VarInt Enum
+
  | {{Type|String}} (4096)
−
  | 1 for [[#Status|status]], 2 for [[#Login|login]]
+
  |
−
|}
+
|}
−
 
 
−
 
 
−
== Play ==
 
−
 
 
−
=== Clientbound ===
 
  
−
==== Named Sound Effect ====
+
==== Clientbound Server Links (play) ====
−
{{See also|#Sound Effect}}
 
  
−
Used to play a sound effect on the client. Custom sounds may be added by resource packs.
+
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}}
 
  ! 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="7"| 0x19
+
  | rowspan="4"| 0x7B
−
  |rowspan="7"| Play
+
  | rowspan="4"| Configuration
−
  |rowspan="7"| Client
+
  | rowspan="4"| Client
−
  | Sound Name
+
  | colspan="2"| Links Count
−
  | String
+
  | colspan="2"| {{Type|VarInt}}
−
  | All known sound effect names can be seen [http://pokechu22.github.io/Burger/1.9.html#sounds here].
+
  | The number of links in the following array.
 
  |-
 
  |-
−
  | Sound Category
+
  | rowspan="3"| Links
−
  | VarInt Enum
+
| Is built-in
−
  | The category that this sound will be played from ([https://gist.github.com/konwboj/7c0c380d3923443e9d55 current categories])
+
  | rowspan="3"| {{Type|Array}}
 +
  | {{Type|Boolean}}
 +
| Determines if the following label is built-in (from enum) or custom (text component).
 
  |-
 
  |-
−
  | Effect Position X
+
  | Label
−
  | Int
+
  | {{Type|VarInt}} {{Type|Enum}} / {{Type|Text Component}}
−
  | Effect X multiplied by 8 ([[Data types#Fixed-point numbers|fixed-point number]] with only 3 bits dedicated to the fractional part)
+
  | See below.
 
  |-
 
  |-
−
  | Effect Position Y
+
  | URL
−
  | Int
+
  | {{Type|String}}
−
  | Effect Y multiplied by 8 ([[Data types#Fixed-point numbers|fixed-point number]] with only 3 bits dedicated to the fractional part)
+
  | Valid URL.
 +
|}
 +
 
 +
{| class="wikitable" {{added}}
 +
! ID
 +
! Name
 +
! Notes
 
  |-
 
  |-
−
  | Effect Position Z
+
  | 0
−
  | Int
+
  | Bug Report
−
  | Effect Z multiplied by 8 ([[Data types#Fixed-point numbers|fixed-point number]] with only 3 bits dedicated to the fractional part)
+
  | Displayed on connection error screen; included as a comment in the disconnection report.
 
  |-
 
  |-
−
  | Volume
+
  | 1
−
  | Float
+
  | Community Guidelines
−
  | 1 is 100%, can be more
+
  |  
 
  |-
 
  |-
−
  | Pitch
+
  | 2
−
  | {{change|Unsigned Byte|Float}}
+
  | Support
−
  | 63 is 100%, can be more
+
  |  
−
  |}
+
  |-
−
 
+
| 3
−
==== Sound Effect ====
+
| Status
−
 
+
|  
−
This packet is used to play a number of [http://pokechu22.github.io/Burger/1.9.html#sounds hardcoded sound events]. For custom sounds, use [[#Named Sound Effect|Named Sound Effect]] ([[#Play|Play]], 0x19, clientbound).
 
−
 
 
−
{{Warning|Numeric sound effect IDs are liable to change between versions}}
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
 
  |-
 
  |-
−
  |rowspan="7"| 0x46
+
  | 4
−
|rowspan="7"| Play
+
  | Feedback
−
|rowspan="7"| Client
+
  |  
−
| Sound ID
 
−
  | VarInt
 
−
  | ID of hardcoded sound event ([http://pokechu22.github.io/Burger/1.9.html#sounds events])
 
 
  |-
 
  |-
−
  | Sound Category
+
  | 5
−
  | VarInt Enum
+
  | Community
−
  | The category that this sound will be played from ([https://gist.github.com/konwboj/7c0c380d3923443e9d55 current categories])
+
  |  
 
  |-
 
  |-
−
  | Effect Position X
+
  | 6
−
  | Int
+
  | Website
−
  | Effect X multiplied by 8 ([[Data types#Fixed-point numbers|fixed-point number]] with only 3 bits dedicated to the fractional part)
+
  |  
 
  |-
 
  |-
−
  | Effect Position Y
+
  | 7
−
  | Int
+
  | Forums
−
  | Effect Y multiplied by 8 ([[Data types#Fixed-point numbers|fixed-point number]] with only 3 bits dedicated to the fractional part)
+
  |  
 
  |-
 
  |-
−
  | Effect Position Z
+
  | 8
−
  | Int
+
  | News
−
  | Effect Z multiplied by 8 ([[Data types#Fixed-point numbers|fixed-point number]] with only 3 bits dedicated to the fractional part)
+
  |  
 
  |-
 
  |-
−
  | Volume
+
  | 9
−
  | Float
+
  | Announcements
−
  | 1.0 is 100%, capped between 0.0 and 1.0 by Notchian clients
+
  |  
 
  |-
 
  |-
−
| Pitch
 
−
| {{change|Unsigned Byte|Float}}
 
−
| Float multiplied by 63.5, capped between 0.5 and 2.0 by Notchian clients
 
 
  |}
 
  |}
  
Line 733: Line 279:
 
No changes so far.
 
No changes so far.
  
−
== Status ==
+
[[Category:Minecraft Modern]]
−
 
 
−
=== Clientbound ===
 
−
 
 
−
No changes so far.
 
−
 
 
−
=== Serverbound ===
 
−
 
 
−
No changes so far.
 
−
 
 
−
== Login ==
 
−
 
 
−
=== 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"