Difference between revisions of "Pre-release protocol"

From wiki.vg
Jump to navigation Jump to search
(1.20-rc1)
(Reset page)
Tag: Replaced
Line 1: Line 1:
−
This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.19.4, protocol 762]]) to the current pre-release (currently [[Protocol version numbers|1.20-rc1, protocol {{Snapshot PVN|1073741965}}]]). Note that this page contains bleeding-edge information that may not be completely or correctly documented.
+
There are currently no pre-release versions available to document on this page. For the latest stable Minecraft release, see the [[Protocol|Protocol]] page. For previous pre-release pages, see the [[Protocol version numbers|Protocol version numbers]] page.
  
 
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"
+
No changes so far.
−
! ID
 
−
! Packet name
 
−
!colspan="2"| Documentation
 
−
|-
 
−
!colspan="4"| Play clientbound
 
−
{{PacketList|0x24|Chunk Data and Update Light}}
 
−
{{PacketList|0x27|Update Light}}
 
−
{{PacketList|0x28|Login (play)}}
 
−
{{PacketList|0x31|Open Sign Editor}}
 
−
{{PacketList|0x36|End Combat}}
 
−
{{PacketList|0x38|Combat Death}}
 
−
{{PacketList|0x41|Respawn}}
 
−
{{PacketList|0x43|Update Section Blocks}}
 
−
{{PacketList|0x69|Update Advancements}}
 
−
{{PacketList|0x6B|Feature Flags}}
 
−
{{PacketList|0x6D|Update Recipes}}
 
−
|-
 
−
!colspan="4"| Play serverbound
 
−
{{PacketList|0x2E|Update Sign}}
 
−
|}
 
  
 
== New/modified data types ==
 
== New/modified data types ==
Line 53: Line 33:
 
== Inventories ==
 
== Inventories ==
  
−
{| class="wikitable"
+
No changes so far.
−
|-
 
−
! Type
 
−
! Name
 
−
! Description
 
−
|-
 
−
| 0
 
−
| minecraft:generic_9x1
 
−
| A 1-row inventory, not used by the notchian server.
 
−
|-
 
−
| 1
 
−
| minecraft:generic_9x2
 
−
| A 2-row inventory, not used by the notchian server.
 
−
|-
 
−
| 2
 
−
| minecraft:generic_9x3
 
−
| General-purpose 3-row inventory.  Used by {{Minecraft Wiki|Chest}}, {{Minecraft Wiki|minecart with chest}}, {{Minecraft Wiki|ender chest}}, and {{Minecraft Wiki|barrel}}
 
−
|-
 
−
| 3
 
−
| minecraft:generic_9x4
 
−
| A 4-row inventory, not used by the notchian server.
 
−
|-
 
−
| 4
 
−
| minecraft:generic_9x5
 
−
| A 5-row inventory, not used by the notchian server.
 
−
|-
 
−
| 5
 
−
| minecraft:generic_9x6
 
−
| General-purpose 6-row inventory, used by large chests.
 
−
|-
 
−
| 6
 
−
| minecraft:generic_3x3
 
−
| General-purpose 3-by-3 square inventory, used by {{Minecraft Wiki|Dispenser}} and {{Minecraft Wiki|Dropper}}
 
−
|-
 
−
| 7
 
−
| minecraft:anvil
 
−
| {{Minecraft Wiki|Anvil}}
 
−
|-
 
−
| 8
 
−
| minecraft:beacon
 
−
| {{Minecraft Wiki|Beacon}}
 
−
|-
 
−
| 9
 
−
| minecraft:blast_furnace
 
−
| {{Minecraft Wiki|Blast Furnace}}
 
−
|-
 
−
| 10
 
−
| minecraft:brewing_stand
 
−
| {{Minecraft Wiki|Brewing stand}}
 
−
|-
 
−
| 11
 
−
| minecraft:crafting
 
−
| {{Minecraft Wiki|Crafting table}}
 
−
|-
 
−
| 12
 
−
| minecraft:enchantment
 
−
| {{Minecraft Wiki|Enchantment table}}
 
−
|-
 
−
| 13
 
−
| minecraft:furnace
 
−
| {{Minecraft Wiki|Furnace}}
 
−
|-
 
−
| 14
 
−
| minecraft:grindstone
 
−
| {{Minecraft Wiki|Grindstone}}
 
−
|-
 
−
| 15
 
−
| minecraft:hopper
 
−
| {{Minecraft Wiki|Hopper}} or {{Minecraft Wiki|minecart with hopper}}
 
−
|-
 
−
| 16
 
−
| minecraft:lectern
 
−
| {{Minecraft Wiki|Lectern}}
 
−
|-
 
−
| 17
 
−
| minecraft:loom
 
−
| {{Minecraft Wiki|Loom}}
 
−
|-
 
−
| 18
 
−
| minecraft:merchant
 
−
| {{Minecraft Wiki|Villager}}, {{Minecraft Wiki|Wandering Trader}}
 
−
|-
 
−
| 19
 
−
| minecraft:shulker_box
 
−
| {{Minecraft Wiki|Shulker box}}
 
−
|- {{removed}}
 
−
| 20
 
−
| minecraft:legacy_smithing
 
−
| {{Minecraft Wiki|Smithing Table}}
 
−
{{Warning|The Notchian server only sends this type if [[Protocol#Feature_Flags|feature flag]] '''update_1_20''' was '''not''' enabled}}
 
−
|-
 
−
| {{change|21|20}}
 
−
| minecraft:smithing
 
−
| {{Minecraft Wiki|Smithing Table}}
 
−
{{change|{{Warning|The Notchian server only sends this type if [[Protocol#Feature_Flags|feature flag]] '''update_1_20''' was enabled}}|}}
 
−
|-
 
−
| {{change|22|21}}
 
−
| minecraft:smoker
 
−
| {{Minecraft Wiki|Smoker}}
 
−
|-
 
−
| {{change|23|22}}
 
−
| minecraft:cartography
 
−
| {{Minecraft Wiki|Cartography Table}}
 
−
|-
 
−
| {{change|24|23}}
 
−
| minecraft:stonecutter
 
−
| {{Minecraft Wiki|Stonecutter}}
 
−
|}
 
  
 
== Plugin Channels ==
 
== Plugin Channels ==
Line 170: Line 43:
 
=== Clientbound ===
 
=== Clientbound ===
  
−
==== Chunk Data and Update Light ====
+
No changes so far.
−
{{Main|Chunk Format}}
 
−
{{See also|#Unload Chunk}}
 
−
 
 
−
{{Need Info|How do biomes work now?  The biome change happened at the same time as the seed change, but it's not clear how/if biomes could be computed given that it's not the actual seed...  ([https://www.reddit.com/r/Mojira/comments/e5at6i/a_discussion_for_the_changes_to_how_biomes_are/ /r/mojira discussion] which notes that it seems to be some kind of interpolation)}}
 
−
 
 
−
This packet sends all block entities in the chunk (though sending them is not required; it is still legal to send them with [[#Block Entity Data|Block Entity Data]] later). The light data in this packet is the same format as in the [[#Update Light|Update Light]] packet.
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! colspan="2"| Field Name
 
−
! colspan="2"| Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="21"| 0x24
 
−
| rowspan="21"| Play
 
−
| rowspan="21"| Client
 
−
| colspan="2"| Chunk X
 
−
| colspan="2"| Int
 
−
| Chunk coordinate (block coordinate divided by 16, rounded down)
 
−
|-
 
−
| colspan="2"| Chunk Z
 
−
| colspan="2"| Int
 
−
| Chunk coordinate (block coordinate divided by 16, rounded down)
 
−
|-
 
−
| colspan="2"| Heightmaps
 
−
| colspan="2"| [[NBT]]
 
−
| Compound containing one long array named <code>MOTION_BLOCKING</code>, which is a heightmap for the highest solid block at each position in the chunk (as a compacted long array with 256 entries, with the number of bits per entry varying depending on the world's height, defined by the formula <code>ceil(log2(height + 1))</code>). The Notchian server also adds a <code>WORLD_SURFACE</code> long array, the purpose of which is unknown, but it's not required for the chunk to be accepted.
 
−
|-
 
−
| colspan="2"| Size
 
−
| colspan="2"| VarInt
 
−
| Size of Data in bytes
 
−
|-
 
−
| colspan="2"| Data
 
−
| colspan="2"| Byte array
 
−
| See [[Chunk Format#Data structure|data structure]] in Chunk Format
 
−
|-
 
−
| colspan="2"| Number of block entities
 
−
| colspan="2"| VarInt
 
−
| Number of elements in the following array
 
−
|-
 
−
| rowspan="4"| Block Entity
 
−
| Packed XZ
 
−
| rowspan="4"| Array
 
−
| Byte
 
−
| The packed section coordinates, calculated from <code><nowiki>((blockX & 15) << 4) | (blockZ & 15)</nowiki></code>
 
−
|-
 
−
| Y
 
−
| Short
 
−
| The height relative to the world
 
−
|-
 
−
| Type
 
−
| VarInt
 
−
| The type of block entity
 
−
|-
 
−
| Data
 
−
| [[NBT]]
 
−
| The block entity's data, without the X, Y, and Z values
 
−
|- {{removed}}
 
−
| colspan="2"| Trust Edges
 
−
| colspan="2"| Boolean
 
−
| If edges should be trusted for light updates.
 
−
|-
 
−
| colspan="2"| Sky Light Mask
 
−
| colspan="2"| BitSet
 
−
| BitSet containing bits for each section in the world + 2.  Each set bit indicates that the corresponding 16×16×16 chunk section has data in the Sky Light array below.  The least significant bit is for blocks 16 blocks to 1 block below the min world height (one section below the world), while the most significant bit covers blocks 1 to 16 blocks above the max world height (one section above the world).
 
−
|-
 
−
| colspan="2"| Block Light Mask
 
−
| colspan="2"| BitSet
 
−
| BitSet containing bits for each section in the world + 2.  Each set bit indicates that the corresponding 16×16×16 chunk section has data in the Block Light array below.  The order of bits is the same as in Sky Light Mask.
 
−
|-
 
−
| colspan="2"| Empty Sky Light Mask
 
−
| colspan="2"| BitSet
 
−
| BitSet containing bits for each section in the world + 2.  Each set bit indicates that the corresponding 16×16×16 chunk section has all zeros for its Sky Light data.  The order of bits is the same as in Sky Light Mask.
 
−
|-
 
−
| colspan="2"| Empty Block Light Mask
 
−
| colspan="2"| BitSet
 
−
| BitSet containing bits for each section in the world + 2.  Each set bit indicates that the corresponding 16×16×16 chunk section has all zeros for its Block Light data.  The order of bits is the same as in Sky Light Mask.
 
−
|-
 
−
| colspan="2"| Sky Light array count
 
−
| colspan="2"| VarInt
 
−
| Number of entries in the following array; should match the number of bits set in Sky Light Mask
 
−
|-
 
−
| rowspan="2"| Sky Light arrays
 
−
| Length
 
−
| rowspan="2"| Array
 
−
| VarInt
 
−
| Length of the following array in bytes (always 2048)
 
−
|-
 
−
| Sky Light array
 
−
| Array of 2048 bytes
 
−
| There is 1 array for each bit set to true in the sky light mask, starting with the lowest value.  Half a byte per light value. Indexed <code><nowiki>((y<<8) | (z<<4) | x) / 2 </nowiki></code> If there's a remainder, masked 0xF0 else 0x0F.
 
−
|-
 
−
| colspan="2"| Block Light array count
 
−
| colspan="2"| VarInt
 
−
| Number of entries in the following array; should match the number of bits set in Block Light Mask
 
−
|-
 
−
| rowspan="2"| Block Light arrays
 
−
| Length
 
−
| rowspan="2"| Array
 
−
| VarInt
 
−
| Length of the following array in bytes (always 2048)
 
−
|-
 
−
| Block Light array
 
−
| Array of 2048 bytes
 
−
| There is 1 array for each bit set to true in the block light mask, starting with the lowest value.  Half a byte per light value. Indexed <code><nowiki>((y<<8) | (z<<4) | x) / 2 </nowiki></code> If there's a remainder, masked 0xF0 else 0x0F.
 
−
|}
 
−
 
 
−
Note that the Notchian client requires an [[#Set Center Chunk|Set Center Chunk]] packet when it crosses a chunk border, otherwise it'll only display render distance + 2 chunks around the chunk it spawned in.
 
−
 
 
−
The compacted array format has been adjusted so that individual entries no longer span across multiple longs, affecting the main data array and heightmaps.
 
−
 
 
−
New format, 5 bits per block, containing the following references to blocks in a palette (not shown): <span style="border: solid 2px hsl(0, 90%, 60%)">1</span><span style="border: solid 2px hsl(30, 90%, 60%)">2</span><span style="border: solid 2px hsl(60, 90%, 60%)">2</span><span style="border: solid 2px hsl(90, 90%, 60%)">3</span><span style="border: solid 2px hsl(120, 90%, 60%)">4</span><span style="border: solid 2px hsl(150, 90%, 60%)">4</span><span style="border: solid 2px hsl(180, 90%, 60%)">5</span><span style="border: solid 2px hsl(210, 90%, 60%)">6</span><span style="border: solid 2px hsl(240, 90%, 60%)">6</span><span style="border: solid 2px hsl(270, 90%, 60%)">4</span><span style="border: solid 2px hsl(300, 90%, 60%)">8</span><span style="border: solid 2px hsl(330, 90%, 60%)">0</span><span style="border: solid 2px hsl(0, 90%, 30%)">7</span><span style="border: solid 2px hsl(30, 90%, 30%)">4</span><span style="border: solid 2px hsl(60, 90%, 30%)">3</span><span style="border: solid 2px hsl(90, 90%, 30%)">13</span><span style="border: solid 2px hsl(120, 90%, 30%)">15</span><span style="border: solid 2px hsl(150, 90%, 30%)">16</span><span style="border: solid 2px hsl(180, 90%, 30%)">9</span><span style="border: solid 2px hsl(210, 90%, 30%)">14</span><span style="border: solid 2px hsl(240, 90%, 30%)">10</span><span style="border: solid 2px hsl(270, 90%, 30%)">12</span><span style="border: solid 2px hsl(300, 90%, 30%)">0</span><span style="border: solid 2px hsl(330, 90%, 30%)">2</span>
 
−
 
 
−
<code>0020863148418841</code> <code><span style="outline: dashed 2px black">0000</span><span style="outline: solid 2px hsl(330, 90%, 60%)">00000</span><span style="outline: solid 2px hsl(300, 90%, 60%)">01000</span><span style="outline: solid 2px hsl(270, 90%, 60%)">00100</span><span style="outline: solid 2px hsl(240, 90%, 60%)">00110</span><span style="outline: solid 2px hsl(210, 90%, 60%)">00110</span><span style="outline: solid 2px hsl(180, 90%, 60%)">00101</span><span style="outline: solid 2px hsl(150, 90%, 60%)">00100</span><span style="outline: solid 2px hsl(120, 90%, 60%)">00100</span><span style="outline: solid 2px hsl(90, 90%, 60%)">00011</span><span style="outline: solid 2px hsl(60, 90%, 60%)">00010</span><span style="outline: solid 2px hsl(30, 90%, 60%)">00010</span><span style="outline: solid 2px hsl(0, 90%, 60%)">00001</span></code><br>
 
−
<code>01018A7260F68C87</code> <code><span style="outline: dashed 2px black">0000</span><span style="outline: solid 2px hsl(330, 90%, 30%)">00010</span><span style="outline: solid 2px hsl(300, 90%, 30%)">00000</span><span style="outline: solid 2px hsl(270, 90%, 30%)">01100</span><span style="outline: solid 2px hsl(240, 90%, 30%)">01010</span><span style="outline: solid 2px hsl(210, 90%, 30%)">01110</span><span style="outline: solid 2px hsl(180, 90%, 30%)">01001</span><span style="outline: solid 2px hsl(150, 90%, 30%)">10000</span><span style="outline: solid 2px hsl(120, 90%, 30%)">01111</span><span style="outline: solid 2px hsl(90, 90%, 30%)">01101</span><span style="outline: solid 2px hsl(60, 90%, 30%)">00011</span><span style="outline: solid 2px hsl(30, 90%, 30%)">00100</span><span style="outline: solid 2px hsl(0, 90%, 30%)">00111</span></code>
 
−
 
 
−
==== Update Light ====
 
−
 
 
−
Updates light levels for a chunk.  See {{Minecraft Wiki|Light}} for information on how lighting works in Minecraft.
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! colspan="2"| Field Name
 
−
! colspan="2"| Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="13"| 0x27
 
−
| rowspan="13"| Play
 
−
| rowspan="13"| Client
 
−
| colspan="2"| Chunk X
 
−
| colspan="2"| VarInt
 
−
| Chunk coordinate (block coordinate divided by 16, rounded down)
 
−
|-
 
−
| colspan="2"| Chunk Z
 
−
| colspan="2"| VarInt
 
−
| Chunk coordinate (block coordinate divided by 16, rounded down)
 
−
|- {{removed}}
 
−
| colspan="2"| Trust Edges
 
−
| colspan="2"| Boolean
 
−
| If edges should be trusted for light updates.
 
−
|-
 
−
| colspan="2"| Sky Light Mask
 
−
| colspan="2"| BitSet
 
−
| BitSet containing bits for each section in the world + 2.  Each set bit indicates that the corresponding 16×16×16 chunk section has data in the Sky Light array below.  The least significant bit is for blocks 16 blocks to 1 block below the min world height (one section below the world), while the most significant bit covers blocks 1 to 16 blocks above the max world height (one section above the world).
 
−
|-
 
−
| colspan="2"| Block Light Mask
 
−
| colspan="2"| BitSet
 
−
| BitSet containing bits for each section in the world + 2.  Each set bit indicates that the corresponding 16×16×16 chunk section has data in the Block Light array below.  The order of bits is the same as in Sky Light Mask.
 
−
|-
 
−
| colspan="2"| Empty Sky Light Mask
 
−
| colspan="2"| BitSet
 
−
| BitSet containing bits for each section in the world + 2.  Each set bit indicates that the corresponding 16×16×16 chunk section has all zeros for its Sky Light data.  The order of bits is the same as in Sky Light Mask.
 
−
|-
 
−
| colspan="2"| Empty Block Light Mask
 
−
| colspan="2"| BitSet
 
−
| BitSet containing bits for each section in the world + 2.  Each set bit indicates that the corresponding 16×16×16 chunk section has all zeros for its Block Light data.  The order of bits is the same as in Sky Light Mask.
 
−
|-
 
−
| colspan="2"| Sky Light array count
 
−
| colspan="2"| VarInt
 
−
| Number of entries in the following array; should match the number of bits set in Sky Light Mask
 
−
|-
 
−
| rowspan="2"| Sky Light arrays
 
−
| Length
 
−
| rowspan="2"| Array
 
−
| VarInt
 
−
| Length of the following array in bytes (always 2048)
 
−
|-
 
−
| Sky Light array
 
−
| Array of 2048 bytes
 
−
| There is 1 array for each bit set to true in the sky light mask, starting with the lowest value.  Half a byte per light value.
 
−
|-
 
−
| colspan="2"| Block Light array count
 
−
| colspan="2"| VarInt
 
−
| Number of entries in the following array; should match the number of bits set in Block Light Mask
 
−
|-
 
−
| rowspan="2"| Block Light arrays
 
−
| Length
 
−
| rowspan="2"| Array
 
−
| VarInt
 
−
| Length of the following array in bytes (always 2048)
 
−
|-
 
−
| Block Light array
 
−
| Array of 2048 bytes
 
−
| There is 1 array for each bit set to true in the block light mask, starting with the lowest value.  Half a byte per light value.
 
−
|}
 
−
 
 
−
A bit will never be set in both the block light mask and the empty block light mask, though it may be present in neither of them (if the block light does not need to be updated for the corresponding chunk section).  The same applies to the sky light mask and the empty sky light mask.
 
−
 
 
−
==== Login (play) ====
 
−
 
 
−
See [[Protocol Encryption]] for information on logging in.
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="21"| 0x28
 
−
| rowspan="21"| Play
 
−
| rowspan="21"| Client
 
−
| Entity ID
 
−
| Int
 
−
| The player's Entity ID (EID).
 
−
|-
 
−
| Is hardcore
 
−
| Boolean
 
−
|
 
−
|-
 
−
| Gamemode
 
−
| Unsigned Byte
 
−
| 0: Survival, 1: Creative, 2: Adventure, 3: Spectator.
 
−
|-
 
−
| Previous Gamemode
 
−
| Byte
 
−
| -1: Undefined (null), 0: Survival, 1: Creative, 2: Adventure, 3: Spectator. The previous gamemode. Vanilla client uses this for the debug (F3 + N & F3 + F4) gamemode switch. (More information needed)
 
−
|-
 
−
| Dimension Count
 
−
| VarInt
 
−
| Size of the following array.
 
−
|-
 
−
| Dimension Names
 
−
| Array of Identifier
 
−
| Identifiers for all dimensions on the server.
 
−
|-
 
−
| Registry Codec
 
−
| [[NBT|NBT Tag Compound]]
 
−
| Represents certain registries that are sent from the server and are applied on the client.
 
−
|-
 
−
| Dimension Type
 
−
| Identifier
 
−
| Name of the dimension type being spawned into.
 
−
|-
 
−
| Dimension Name
 
−
| Identifier
 
−
| Name of the dimension being spawned into.
 
−
|-
 
−
| Hashed seed
 
−
| Long
 
−
| First 8 bytes of the SHA-256 hash of the world's seed. Used client side for biome noise
 
−
|-
 
−
| Max Players
 
−
| VarInt
 
−
| Was once used by the client to draw the player list, but now is ignored.
 
−
|-
 
−
| View Distance
 
−
| VarInt
 
−
| Render distance (2-32).
 
−
|-
 
−
| Simulation Distance
 
−
| VarInt
 
−
| The distance that the client will process specific things, such as entities.
 
−
|-
 
−
| Reduced Debug Info
 
−
| Boolean
 
−
| If true, a Notchian client shows reduced information on the {{Minecraft Wiki|debug screen}}.  For servers in development, this should almost always be false.
 
−
|-
 
−
| Enable respawn screen
 
−
| Boolean
 
−
| Set to false when the doImmediateRespawn gamerule is true.
 
−
|-
 
−
| Is Debug
 
−
| Boolean
 
−
| True if the world is a {{Minecraft Wiki|debug mode}} world; debug mode worlds cannot be modified and have predefined blocks.
 
−
|-
 
−
| Is Flat
 
−
| Boolean
 
−
| True if the world is a {{Minecraft Wiki|superflat}} world; flat worlds have different void fog and a horizon at y=0 instead of y=63.
 
−
|-
 
−
| Has death location
 
−
| Boolean
 
−
| If true, then the next two fields are present.
 
−
|-
 
−
| Death dimension name
 
−
| Optional Identifier
 
−
| Name of the dimension the player died in.
 
−
|-
 
−
| Death location
 
−
| Optional Position
 
−
| The location that the player died at.
 
−
|- {{added}}
 
−
| Portal cooldown
 
−
| VarInt
 
−
| The number of ticks until the player can use the portal again<sup>What impact does this have on the client? Needs more info</sup>.
 
−
|}
 
−
 
 
−
 
 
−
The '''Registry Codec''' NBT Tag Compound ([https://gist.github.com/rj00a/f2970a8ce4d09477ec8f16003b9dce86 Default value in JSON as of 1.19], [https://gist.github.com/nikes/aff59b758a807858da131a1881525b14 1.19.2]) includes three registries: "minecraft:dimension_type", "minecraft:worldgen/biome", and "minecraft:chat_type".
 
−
 
 
−
{| class="wikitable"
 
−
!Name
 
−
!Type
 
−
!style="width: 250px;" colspan="2"| Notes
 
−
|-
 
−
| minecraft:dimension_type
 
−
| TAG_Compound
 
−
| The dimension type registry (see below).
 
−
|-
 
−
| minecraft:worldgen/biome
 
−
| TAG_Compound
 
−
| The biome registry (see below).
 
−
|-
 
−
| minecraft:chat_type
 
−
| TAG_Compound
 
−
| The chat type registry (see below).
 
−
|}
 
−
 
 
−
Dimension type registry:
 
−
 
 
−
{| class="wikitable"
 
−
!Name
 
−
!Type
 
−
!style="width: 250px;" colspan="2"| Notes
 
−
|-
 
−
| type
 
−
| TAG_String
 
−
| The name of the registry. Always "minecraft:dimension_type".
 
−
|-
 
−
| value
 
−
| TAG_List
 
−
| List of dimension types registry entries (see below).
 
−
|}
 
−
 
 
−
Dimension type registry entry:
 
−
 
 
−
{| class="wikitable"
 
−
!Name
 
−
!Type
 
−
!style="width: 250px;" colspan="2"| Notes
 
−
|-
 
−
| name
 
−
| TAG_String
 
−
| The name of the dimension type (for example, "minecraft:overworld").
 
−
|-
 
−
| id
 
−
| TAG_Int
 
−
| The protocol ID of the dimension (matches the index of the element in the registry list).
 
−
|-
 
−
| element
 
−
| TAG_Compound
 
−
| The dimension type (see below).
 
−
|}
 
−
 
 
−
Dimension type:
 
−
 
 
−
{| class="wikitable"
 
−
! Name
 
−
! Type
 
−
!style="width: 250px;" colspan="2"| Meaning
 
−
! Values
 
−
|-
 
−
| piglin_safe
 
−
| TAG_Byte
 
−
| colspan="2"| Whether piglins shake and transform to zombified piglins.
 
−
| 1: true, 0: false.
 
−
|-
 
−
| has_raids
 
−
| TAG_Byte
 
−
| colspan="2"| Whether players with the Bad Omen effect can cause a raid.
 
−
| 1: true, 0: false.
 
−
|-
 
−
| monster_spawn_light_level
 
−
| TAG_Int or TAG_Compound
 
−
| Possibly the light level(s) at which monsters can spawn.
 
−
| colspan="2"| When TAG_Int, 0 - 15. When TAG_Compound, contains the fields: type (TAG_String), appears to be always "minecraft:uniform", and value (TAG_Compound), which contains the fields: max_inclusive (TAG_Int), min_inclusive (TAG_Int).
 
−
|-
 
−
| monster_spawn_block_light_limit
 
−
| TAG_Int
 
−
| colspan="2"|
 
−
|
 
−
|-
 
−
| natural
 
−
| TAG_Byte
 
−
| colspan="2"| When false, compasses spin randomly. When true, nether portals can spawn zombified piglins.
 
−
| 1: true, 0: false.
 
−
|-
 
−
| ambient_light
 
−
| TAG_Float
 
−
| colspan="2"| How much light the dimension has.
 
−
| 0.0 to 1.0.
 
−
|-
 
−
| fixed_time
 
−
| Optional TAG_Long
 
−
| colspan="2"| If set, the time of the day is the specified value.
 
−
| If set, 0 to 24000.
 
−
|-
 
−
| infiniburn
 
−
| TAG_String
 
−
| colspan="2"| A resource location defining what block tag to use for infiniburn.
 
−
| "#" or minecraft resource "#minecraft:...".
 
−
|-
 
−
| respawn_anchor_works
 
−
| TAG_Byte
 
−
| colspan="2"| Whether players can charge and use respawn anchors.
 
−
| 1: true, 0: false.
 
−
|-
 
−
| has_skylight
 
−
| TAG_Byte
 
−
| colspan="2"| Whether the dimension has skylight access or not.
 
−
| 1: true, 0: false.
 
−
|-
 
−
| bed_works
 
−
| TAG_Byte
 
−
| colspan="2"| Whether players can use a bed to sleep.
 
−
| 1: true, 0: false.
 
−
|-
 
−
| effects
 
−
| TAG_String
 
−
| colspan="2"| ?
 
−
| "minecraft:overworld", "minecraft:the_nether", "minecraft:the_end" or something else.
 
−
|-
 
−
| min_y
 
−
| TAG_Int
 
−
| colspan="2"| The minimum Y level.
 
−
| A multiple of 16. Example: -64
 
−
|-
 
−
| height
 
−
| TAG_Int
 
−
| colspan="2"| The maximum height.
 
−
| A multiple of 16. Example: 256
 
−
|-
 
−
| logical_height
 
−
| TAG_Int
 
−
| colspan="2"| The maximum height to which chorus fruits and nether portals can bring players within this dimension.
 
−
| 0-384.
 
−
|-
 
−
| coordinate_scale
 
−
| TAG_Double
 
−
| colspan="2"| The multiplier applied to coordinates when traveling to the dimension.
 
−
| 0.00001 - 30000000.0
 
−
|-
 
−
| ultrawarm
 
−
| TAG_Byte
 
−
| colspan="2"| Whether the dimensions behaves like the nether (water evaporates and sponges dry) or not. Also causes lava to spread thinner.
 
−
| 1: true, 0: false.
 
−
|-
 
−
| has_ceiling
 
−
| TAG_Byte
 
−
| colspan="2"| Whether the dimension has a bedrock ceiling or not. When true, causes lava to spread faster.
 
−
| 1: true, 0: false.
 
−
|}
 
−
 
 
−
Biome registry:
 
−
 
 
−
{| class="wikitable"
 
−
!Name
 
−
!Type
 
−
!style="width: 250px;" colspan="2"| Notes
 
−
|-
 
−
| type
 
−
| TAG_String
 
−
| The name of the registry. Always "minecraft:worldgen/biome".
 
−
|-
 
−
| value
 
−
| TAG_List
 
−
| List of biome registry entries (see below).
 
−
|}
 
−
 
 
−
Biome registry entry:
 
−
 
 
−
{| class="wikitable"
 
−
!Name
 
−
!Type
 
−
!style="width: 250px;" colspan="2"| Notes
 
−
|-
 
−
| name
 
−
| TAG_String
 
−
| The name of the biome (for example, "minecraft:ocean").
 
−
|-
 
−
| id
 
−
| TAG_Int
 
−
| The protocol ID of the biome (matches the index of the element in the registry list).
 
−
|-
 
−
| element
 
−
| TAG_Compound
 
−
| The biome properties (see below).
 
−
|}
 
−
 
 
−
Biome properties:
 
−
 
 
−
{| class="wikitable"
 
−
! colspan="3"|Name
 
−
! colspan="2"|Type
 
−
!style="width: 250px;" colspan="2"| Meaning
 
−
! colspan="2"|Values
 
−
|-
 
−
| colspan="3"|precipitation
 
−
| colspan="2"|TAG_String
 
−
| colspan="2"| The type of precipitation in the biome.
 
−
| colspan="2"|"rain", "snow", or "none".
 
−
|-
 
−
| colspan="3"| depth
 
−
| colspan="2"| Optional TAG_Float
 
−
| colspan="2"| The depth factor of the biome.
 
−
| colspan="2"| The default values vary between 1.5 and -1.8.
 
−
|-
 
−
| colspan="3"| temperature
 
−
| colspan="2"| TAG_Float
 
−
| colspan="2"| The temperature factor of the biome.
 
−
| colspan="2"| The default values vary between 2.0 and -0.5.
 
−
|-
 
−
| colspan="3"| scale
 
−
| colspan="2"| Optional TAG_Float
 
−
| colspan="2"| ?
 
−
| colspan="2"| The default values vary between 1.225 and 0.0.
 
−
|-
 
−
| colspan="3"| downfall
 
−
| colspan="2"| TAG_Float
 
−
| colspan="2"| ?
 
−
| colspan="2"| The default values vary between 1.0 and 0.0.
 
−
|-
 
−
| colspan="3"| category
 
−
| colspan="2"| Optional TAG_String
 
−
| colspan="2"| The category of the biome.
 
−
| colspan="2"| Known values are "ocean", "plains", "desert", "forest", "extreme_hills", "taiga", "swamp", "river", "nether", "the_end", "icy", "mushroom", "beach", "jungle", "mesa", "savanna", and "none".
 
−
|-
 
−
| colspan="3"| temperature_modifier
 
−
| colspan="2"| Optional TAG_String
 
−
| colspan="2"| ?
 
−
| colspan="2"| The only known value is "frozen".
 
−
|-
 
−
| rowspan="13"| effects
 
−
| colspan="2"| sky_color
 
−
| rowspan="11"| TAG_Compound
 
−
| TAG_Int
 
−
| colspan="2"| The color of the sky.
 
−
| Example: 8364543, which is #7FA1FF in RGB.
 
−
|-
 
−
| colspan="2"| water_fog_color
 
−
| TAG_Int
 
−
| colspan="2"| Possibly the tint color when swimming.
 
−
| Example: 8364543, which is #7FA1FF in RGB.
 
−
|-
 
−
| colspan="2"| fog_color
 
−
| TAG_Int
 
−
| colspan="2"| Possibly the color of the fog effect when looking past the view distance.
 
−
| Example: 8364543, which is #7FA1FF in RGB.
 
−
|-
 
−
| colspan="2"| water_color
 
−
| TAG_Int
 
−
| colspan="2"| The tint color of the water blocks.
 
−
| Example: 8364543, which is #7FA1FF in RGB.
 
−
|-
 
−
| colspan="2"| foliage_color
 
−
| Optional TAG_Int
 
−
| colspan="2"| The tint color of the grass.
 
−
| Example: 8364543, which is #7FA1FF in RGB.
 
−
|-
 
−
| colspan="2"| grass_color
 
−
| Optional TAG_Int
 
−
| colspan="2"| ?
 
−
| Example: 8364543, which is #7FA1FF in RGB.
 
−
|-
 
−
| colspan="2"| grass_color_modifier
 
−
| Optional TAG_String
 
−
| colspan="2"| Unknown, likely affects foliage color.
 
−
| If set, known values are "swamp" and "dark_forest".
 
−
|-
 
−
| colspan="2"| music
 
−
| Optional TAG_Compound
 
−
| colspan="2"| Music properties for the biome.
 
−
| If present, contains the fields: replace_current_music (TAG_Byte), sound (TAG_String), max_delay (TAG_Int), min_delay (TAG_Int).
 
−
|-
 
−
| colspan="2"| ambient_sound
 
−
| Optional TAG_String
 
−
| colspan="2"| Ambient soundtrack.
 
−
| If present, the ID of a soundtrack. Example: "minecraft:ambient.basalt_deltas.loop".
 
−
|-
 
−
| colspan="2"| additions_sound
 
−
| Optional TAG_Compound
 
−
| colspan="2"| Additional ambient sound that plays randomly.
 
−
| If present, contains the fields: sound (TAG_String), tick_chance (TAG_Double).
 
−
|-
 
−
| colspan="2"| mood_sound
 
−
| Optional TAG_Compound
 
−
| colspan="2"| Additional ambient sound that plays at an interval.
 
−
| If present, contains the fields: sound (TAG_String), tick_delay (TAG_Int), offset (TAG_Double), block_search_extent (TAG_Int).
 
−
|-
 
−
| rowspan="2"| particle
 
−
| probability
 
−
| rowspan="2"| Optional TAG_Compound
 
−
| TAG_FLOAT
 
−
| rowspan="2"| Particles that appear randomly in the biome.
 
−
| Possibly the probability of spawning the particle.
 
−
| ?
 
−
|-
 
−
| options
 
−
| TAG_COMPOUND
 
−
| The properties of the particle to spawn.
 
−
| Contains the field "type" (TAG_String), which identifies the particle type.
 
−
|}
 
−
 
 
−
Chat registry:
 
−
 
 
−
{| class="wikitable"
 
−
!Name
 
−
!Type
 
−
!style="width: 250px;" colspan="2"| Notes
 
−
|-
 
−
| type
 
−
| TAG_String
 
−
| The name of the registry. Always "minecraft:chat_type".
 
−
|-
 
−
| value
 
−
| TAG_List
 
−
| List of chat type registry entries (see below).
 
−
|}
 
−
 
 
−
Chat type:
 
−
 
 
−
{| class="wikitable"
 
−
!Name
 
−
!Type
 
−
!style="width: 250px;" colspan="2"| Notes
 
−
|-
 
−
| name
 
−
| TAG_String
 
−
| The type's name (eg "minecraft:chat")
 
−
|-
 
−
| id
 
−
| TAG_Int
 
−
|
 
−
|-
 
−
| elements
 
−
| TAG_Compound
 
−
| "chat" and "narration" TAG_Compound's (see below)
 
−
|}
 
−
 
 
−
Chat type "chat" and "narration":
 
−
 
 
−
{| class="wikitable"
 
−
!Name
 
−
!Type
 
−
!style="width: 250px;" colspan="2"| Notes
 
−
|-
 
−
| translation_key
 
−
| TAG_String
 
−
|
 
−
|-
 
−
| style
 
−
| TAG_Compound
 
−
| Similar to Chat JSON (only present in "chat" TAG_Compound)
 
−
|-
 
−
| parameters
 
−
| TAG_List of TAG_String
 
−
| Values can be "sender", "target" and "content"
 
−
|}
 
−
 
 
−
==== Open Sign Editor ====
 
−
 
 
−
Sent when the client has placed a sign and is allowed to send [[#Update Sign|Update Sign]].  There must already be a sign at the given location (which the client does not do automatically) - send a [[#Block Update|Block Update]] first.
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="2" | 0x31
 
−
| rowspan="2" | Play
 
−
| rowspan="2" | Client
 
−
| Location
 
−
| Position
 
−
|
 
−
|- {{added}}
 
−
| Is Front Text
 
−
| Boolean
 
−
| Whether the opened editor is for the front or on the back of the sign
 
−
|}
 
−
 
 
−
==== End Combat ====
 
−
 
 
−
Unused by the Notchian client.  This data was once used for twitch.tv metadata circa 1.8.
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="2"| 0x36
 
−
| rowspan="2"| Play
 
−
| rowspan="2"| Client
 
−
| Duration
 
−
| VarInt
 
−
| Length of the combat in ticks.
 
−
|- {{removed}}
 
−
| Entity ID
 
−
| Int
 
−
| ID of the primary opponent of the ended combat, or -1 if there is no obvious primary opponent.
 
−
|}
 
−
 
 
−
==== Combat Death ====
 
−
 
 
−
Used to send a respawn screen.
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="3"| 0x38
 
−
| rowspan="3"| Play
 
−
| rowspan="3"| Client
 
−
| Player ID
 
−
| VarInt
 
−
| Entity ID of the player that died (should match the client's entity ID).
 
−
|- {{removed}}
 
−
| Entity ID
 
−
| Int
 
−
| The killer entity's ID, or -1 if there is no obvious killer.
 
−
|-
 
−
| Message
 
−
| [[Chat]]
 
−
| The death message.
 
−
|}
 
−
 
 
−
==== Respawn ====
 
−
 
 
−
To change the player's dimension (overworld/nether/end), send them a respawn packet with the appropriate dimension, followed by prechunks/chunks for the new dimension, and finally a position and look packet. You do not need to unload chunks, the client will do it automatically.
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="12"| 0x41
 
−
| rowspan="12"| Play
 
−
| rowspan="12"| Client
 
−
| Dimension Type
 
−
| Identifier
 
−
| Valid dimensions are defined per dimension registry sent in [[#Login (play)|Login (play)]]
 
−
|-
 
−
| Dimension Name
 
−
| Identifier
 
−
| Name of the dimension being spawned into.
 
−
|-
 
−
| Hashed seed
 
−
| Long
 
−
| First 8 bytes of the SHA-256 hash of the world's seed. Used client side for biome noise
 
−
|-
 
−
| Gamemode
 
−
| Unsigned Byte
 
−
| 0: Survival, 1: Creative, 2: Adventure, 3: Spectator.
 
−
|-
 
−
| Previous Gamemode
 
−
| Byte
 
−
| -1: Undefined (null), 0: Survival, 1: Creative, 2: Adventure, 3: Spectator. The previous gamemode. Vanilla client uses this for the debug (F3 + N & F3 + F4) gamemode switch. (More information needed)
 
−
|-
 
−
| Is Debug
 
−
| Boolean
 
−
| True if the world is a {{Minecraft Wiki|debug mode}} world; debug mode worlds cannot be modified and have predefined blocks.
 
−
|-
 
−
| Is Flat
 
−
| Boolean
 
−
| True if the world is a {{Minecraft Wiki|superflat}} world; flat worlds have different void fog and a horizon at y=0 instead of y=63.
 
−
|-
 
−
| Data kept
 
−
| Byte
 
−
| Bit mask. 0x01: Keep attributes, 0x02: Keep metadata. Tells which data should be kept on the client side once the player has respawned.
 
−
In the Notchian implementation, this is context dependent:
 
−
* normal respawns (after death) keep no data;
 
−
* exiting the end poem/credits keeps the attributes;
 
−
* other dimension changes (portals or teleports) keep all data.
 
−
|-
 
−
| Has death location
 
−
| Boolean
 
−
| If true, then the next two fields are present.
 
−
|-
 
−
| Death dimension Name
 
−
| Optional Identifier
 
−
| Name of the dimension the player died in.
 
−
|-
 
−
| Death location
 
−
| Optional Position
 
−
| The location that the player died at.
 
−
|- {{added}}
 
−
| Portal cooldown
 
−
| VarInt
 
−
| The number of ticks until the player can use the portal again<sup>What impact does this have on the client? Needs more info</sup>.
 
−
|}
 
−
 
 
−
{{Warning2|Avoid changing player's dimension to same dimension they were already in unless they are dead. If you change the dimension to one they are already in, weird bugs can occur, such as the player being unable to attack other players in new world (until they die and respawn).
 
−
 
 
−
Before 1.16, if you must respawn a player in the same dimension without killing them, send two respawn packets, one to a different world and then another to the world you want. You do not need to complete the first respawn; it only matters that you send two packets.}}
 
−
 
 
−
==== Update Section Blocks ====
 
−
 
 
−
Fired whenever 2 or more blocks are changed within the same chunk on the same tick.
 
−
 
 
−
{{Warning|Changing blocks in chunks not loaded by the client is unsafe (see note on [[#Block Update|Block Update]]).}}
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="4"| 0x43
 
−
| rowspan="4"| Play
 
−
| rowspan="4"| Client
 
−
| Chunk section position
 
−
| Long
 
−
| Chunk section coordinate (encoded chunk x and z with each 22 bits, and section y with 20 bits, from left to right).
 
−
|- {{removed}}
 
−
| Suppress Light Updates
 
−
| Boolean
 
−
| Whether to ignore light updates caused by the contained changes. Always inverse the preceding Update Light packet's "Trust Edges" bool
 
−
|-
 
−
| Blocks array size
 
−
| VarInt
 
−
| Number of elements in the following array.
 
−
|-
 
−
| Blocks
 
−
| Array of VarLong
 
−
| Each entry is composed of the block state id, shifted left by 12, and the relative block position in the chunk section (4 bits for x, z, and y, from left to right).
 
−
|}
 
−
 
 
−
Chunk section position is encoded:
 
−
<syntaxhighlight lang="java">
 
−
((sectionX & 0x3FFFFF) << 42) | (sectionY & 0xFFFFF) | ((sectionZ & 0x3FFFFF) << 20);
 
−
</syntaxhighlight>
 
−
and decoded:
 
−
<syntaxhighlight lang="java">
 
−
sectionX = long >> 42;
 
−
sectionY = long << 44 >> 44;
 
−
sectionZ = long << 22 >> 42;
 
−
</syntaxhighlight>
 
−
 
 
−
Blocks are encoded:
 
−
<syntaxhighlight lang="java">
 
−
blockStateId << 12 | (blockLocalX << 8 | blockLocalZ << 4 | blockLocalY)
 
−
//Uses the local position of the given block position relative to its respective chunk section
 
−
</syntaxhighlight>
 
−
 
 
−
==== Update Advancements ====
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! colspan="2"| Field Name
 
−
! colspan="2"| Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="9"| 0x69
 
−
| rowspan="9"| Play
 
−
| rowspan="9"| Client
 
−
| colspan="2"| Reset/Clear
 
−
| colspan="2"| Boolean
 
−
| Whether to reset/clear the current advancements.
 
−
|-
 
−
| colspan="2"| Mapping size
 
−
| colspan="2"| VarInt
 
−
| Size of the following array.
 
−
|-
 
−
| rowspan="2"| Advancement mapping
 
−
| Key
 
−
| rowspan="2"| Array
 
−
| Identifier
 
−
| The identifier of the advancement.
 
−
|-
 
−
| Value
 
−
| Advancement
 
−
| See below
 
−
|-
 
−
| colspan="2"| List size
 
−
| colspan="2"| VarInt
 
−
| Size of the following array.
 
−
|-
 
−
| colspan="2"| Identifiers
 
−
| colspan="2"| Array of Identifier
 
−
| The identifiers of the advancements that should be removed.
 
−
|-
 
−
| colspan="2"| Progress size
 
−
| colspan="2"| VarInt
 
−
| Size of the following array.
 
−
|-
 
−
| rowspan="2"| Progress mapping
 
−
| Key
 
−
| rowspan="2"| Array
 
−
| Identifier
 
−
| The identifier of the advancement.
 
−
|-
 
−
| Value
 
−
| Advancement progress
 
−
| See below.
 
−
|}
 
−
 
 
−
Advancement structure:
 
−
 
 
−
{| class="wikitable"
 
−
! colspan="2"| Field Name
 
−
! colspan="2"| Field Type
 
−
! Notes
 
−
|-
 
−
| colspan="2"| Has parent
 
−
| colspan="2"| Boolean
 
−
| Indicates whether the next field exists.
 
−
|-
 
−
| colspan="2"| Parent id
 
−
| colspan="2"| Optional Identifier
 
−
| The identifier of the parent advancement.
 
−
|-
 
−
| colspan="2"| Has display
 
−
| colspan="2"| Boolean
 
−
| Indicates whether the next field exists.
 
−
|-
 
−
| colspan="2"| Display data
 
−
| colspan="2"| Optional advancement display
 
−
| See below.
 
−
|-
 
−
| colspan="2"| Number of criteria
 
−
| colspan="2"| VarInt
 
−
| Size of the following array.
 
−
|-
 
−
| rowspan="2"| Criteria
 
−
| Key
 
−
| rowspan="2"| Array
 
−
| Identifier
 
−
| The identifier of the criterion.
 
−
|-
 
−
| Value
 
−
| '''Void'''
 
−
| There is ''no'' content written here. Perhaps this will be expanded in the future?
 
−
|-
 
−
| colspan="2"| Array length
 
−
| colspan="2"| VarInt
 
−
| Number of arrays in the following array.
 
−
|-
 
−
| rowspan="2"| Requirements
 
−
| Array length 2
 
−
| rowspan="2"| Array
 
−
| VarInt
 
−
| Number of elements in the following array.
 
−
|-
 
−
| Requirement
 
−
| Array of String
 
−
| Array of required criteria.
 
−
|- {{added}}
 
−
| colspan="2"| Sends telemetry data
 
−
| colspan="2"| Boolean
 
−
| Whether the client should include this achievement in the telemetry data when it's completed.
 
−
The Notchian client only sends data for advancements on the <code>minecraft</code> namespace.
 
−
|}
 
−
 
 
−
Advancement display:
 
−
 
 
−
{| class="wikitable"
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
| Title
 
−
| Chat
 
−
|
 
−
|-
 
−
| Description
 
−
| Chat
 
−
|
 
−
|-
 
−
| Icon
 
−
| [[Slot]]
 
−
|
 
−
|-
 
−
| Frame type
 
−
| VarInt Enum
 
−
| 0 = <code>task</code>, 1 = <code>challenge</code>, 2 = <code>goal</code>.
 
−
|-
 
−
| Flags
 
−
| Int
 
−
| 0x01: has background texture; 0x02: <code>show_toast</code>; 0x04: <code>hidden</code>.
 
−
|-
 
−
| Background texture
 
−
| Optional Identifier
 
−
| Background texture location.  Only if flags indicates it.
 
−
|-
 
−
| X coord
 
−
| Float
 
−
|
 
−
|-
 
−
| Y coord
 
−
| Float
 
−
|
 
−
|}
 
−
 
 
−
Advancement progress:
 
−
 
 
−
{| class="wikitable"
 
−
! colspan="2"| Field Name
 
−
! colspan="2"| Field Type
 
−
! Notes
 
−
|-
 
−
| colspan="2"| Size
 
−
| colspan="2"| VarInt
 
−
| Size of the following array.
 
−
|-
 
−
| rowspan="2"| Criteria
 
−
| Criterion identifier
 
−
| rowspan="2"| Array
 
−
| Identifier
 
−
| The identifier of the criterion.
 
−
|-
 
−
| Criterion progress
 
−
| Criterion progress
 
−
|
 
−
|}
 
−
 
 
−
Criterion progress:
 
−
 
 
−
{| class="wikitable"
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
| Achieved
 
−
| Boolean
 
−
| If true, next field is present.
 
−
|-
 
−
| Date of achieving
 
−
| Optional Long
 
−
| As returned by [https://docs.oracle.com/javase/6/docs/api/java/util/Date.html#getTime() <code>Date.getTime</code>].
 
−
|}
 
−
 
 
−
==== Feature Flags ====
 
−
 
 
−
Used to enable and disable features, generally experimental ones, on the client.
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="2"| 0x6B
 
−
| rowspan="2"| Play
 
−
| rowspan="2"| Client
 
−
| Total Features
 
−
| VarInt
 
−
| Number of features that appear in the array below.
 
−
|-
 
−
| Feature Flags
 
−
| Identifier Array
 
−
|
 
−
|}
 
−
 
 
−
As of {{change|1.19.4|1.20}}, the following feature flags are available:
 
−
 
 
−
* minecraft:vanilla - enables vanilla features</li>
 
−
* minecraft:bundle - enables support for the bundle</li>
 
−
* {{change|minecraft:update_1_20 - enables all the Minecraft 1.20 features that are available in 1.19.4</li>|}}
 
−
 
 
−
==== Update Recipes ====
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! colspan="2"| Field Name
 
−
! colspan="2"| Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="4"| 0x6D
 
−
| rowspan="4"| Play
 
−
| rowspan="4"| Client
 
−
| colspan="2"| Num Recipes
 
−
| colspan="2"| VarInt
 
−
| Number of elements in the following array.
 
−
|-
 
−
| rowspan="3"| Recipe
 
−
| Type
 
−
| rowspan="3"| Array
 
−
| Identifier
 
−
| The recipe type, see below.
 
−
|-
 
−
| Recipe ID
 
−
| Identifier
 
−
|
 
−
|-
 
−
| Data
 
−
| Varies
 
−
| Additional data for the recipe.
 
−
|}
 
−
 
 
−
Recipe types:
 
−
 
 
−
{| class="wikitable"
 
−
! Type
 
−
! Description
 
−
! Data
 
−
|-
 
−
| <code>minecraft:crafting_shapeless</code>
 
−
| Shapeless crafting recipe. All items in the ingredient list must be present, but in any order/slot.
 
−
| As follows:
 
−
  {| class="wikitable"
 
−
    ! Name
 
−
    ! Type
 
−
    ! Description
 
−
    |-
 
−
    | Group
 
−
    | String
 
−
    | Used to group similar recipes together in the recipe book. Tag is present in recipe JSON.
 
−
    |-
 
−
    |Category
 
−
    |VarInt Enum
 
−
    |Building = 0, Redstone = 1, Equipment = 2, Misc = 3
 
−
    |-
 
−
    | Ingredient count
 
−
    | VarInt
 
−
    | Number of elements in the following array.
 
−
    |-
 
−
    | Ingredients
 
−
    | Array of Ingredient.
 
−
    |
 
−
    |-
 
−
    | Result
 
−
    | [[Slot]]
 
−
    |
 
−
    |}
 
−
|-
 
−
| <code>minecraft:crafting_shaped</code>
 
−
| Shaped crafting recipe. All items must be present in the same pattern (which may be flipped horizontally or translated).
 
−
| As follows:
 
−
  {| class="wikitable"
 
−
    ! Name
 
−
    ! Type
 
−
    ! Description
 
−
    |-
 
−
    | Width
 
−
    | VarInt
 
−
    |
 
−
    |-
 
−
    | Height
 
−
    | VarInt
 
−
    |
 
−
    |-
 
−
    | Group
 
−
    | String
 
−
    | Used to group similar recipes together in the recipe book. Tag is present in recipe JSON.
 
−
    |-
 
−
    |Category
 
−
    |VarInt Enum
 
−
    |Building = 0, Redstone = 1, Equipment = 2, Misc = 3
 
−
    |-
 
−
    | Ingredients
 
−
    | Array of Ingredient
 
−
    | Length is <code>width * height</code>. Indexed by <code>x + (y * width)</code>.
 
−
    |-
 
−
    | Result
 
−
    | [[Slot]]
 
−
    |-
 
−
    | Show notification
 
−
    | Boolean
 
−
    | Show a toast when the recipe is [[Protocol#Update_Recipe_Book|added]].
 
−
    |}
 
−
|-
 
−
| <code>minecraft:crafting_special_armordye</code>
 
−
| Recipe for dying leather armor
 
−
| rowspan="14" | As follows:
 
−
  {| class="wikitable"
 
−
    ! Name
 
−
    ! Type
 
−
    ! Description
 
−
    |-
 
−
    |Category
 
−
    |VarInt Enum
 
−
    |Building = 0, Redstone = 1, Equipment = 2, Misc = 3
 
−
    |}
 
−
|-
 
−
| <code>minecraft:crafting_special_bookcloning</code>
 
−
| Recipe for copying contents of written books
 
−
|-
 
−
| <code>minecraft:crafting_special_mapcloning</code>
 
−
| Recipe for copying maps
 
−
|-
 
−
| <code>minecraft:crafting_special_mapextending</code>
 
−
| Recipe for adding paper to maps
 
−
|-
 
−
| <code>minecraft:crafting_special_firework_rocket</code>
 
−
| Recipe for making firework rockets
 
−
|-
 
−
| <code>minecraft:crafting_special_firework_star</code>
 
−
| Recipe for making firework stars
 
−
|-
 
−
| <code>minecraft:crafting_special_firework_star_fade</code>
 
−
| Recipe for making firework stars fade between multiple colors
 
−
|-
 
−
| <code>minecraft:crafting_special_repairitem</code>
 
−
| Recipe for repairing items via crafting
 
−
|-
 
−
| <code>minecraft:crafting_special_tippedarrow</code>
 
−
| Recipe for crafting tipped arrows
 
−
|-
 
−
| <code>minecraft:crafting_special_bannerduplicate</code>
 
−
| Recipe for copying banner patterns
 
−
|-
 
−
| <code>minecraft:crafting_special_shielddecoration</code>
 
−
| Recipe for applying a banner's pattern to a shield
 
−
|-
 
−
| <code>minecraft:crafting_special_shulkerboxcoloring</code>
 
−
| Recipe for recoloring a shulker box
 
−
|-
 
−
| <code>minecraft:crafting_special_suspiciousstew</code>
 
−
| Recipe for crafting suspicious stews
 
−
|-
 
−
| <code>minecraft:crafting_decorated_pot</code>
 
−
| Recipe for crafting decorated pots
 
−
{{change|{{Warning|The Notchian server only sends this recipe if [[Protocol#Feature_Flags|feature flag]] '''update_1_20''' was enabled}}|}}
 
−
|-
 
−
| <code>minecraft:smelting</code>
 
−
| Smelting recipe
 
−
| rowspan="4"| As follows:
 
−
  {| class="wikitable"
 
−
    ! Name
 
−
    ! Type
 
−
    ! Description
 
−
    |-
 
−
    | Group
 
−
    | String
 
−
    | Used to group similar recipes together in the recipe book.
 
−
    |-
 
−
    |Category
 
−
    |VarInt Enum
 
−
    |Food = 0, Blocks = 1, Misc = 2
 
−
    |-
 
−
    | Ingredient
 
−
    | Ingredient
 
−
    |
 
−
    |-
 
−
    | Result
 
−
    | [[Slot]]
 
−
    |
 
−
    |-
 
−
    | Experience
 
−
    | Float
 
−
    |
 
−
    |-
 
−
    | Cooking time
 
−
    | VarInt
 
−
    |
 
−
    |}
 
−
|-
 
−
| <code>minecraft:blasting</code>
 
−
| Blast furnace recipe
 
−
|-
 
−
| <code>minecraft:smoking</code>
 
−
| Smoker recipe
 
−
|-
 
−
| <code>minecraft:campfire_cooking</code>
 
−
| Campfire recipe
 
−
|-
 
−
| <code>minecraft:stonecutting</code>
 
−
| Stonecutter recipe
 
−
| As follows:
 
−
  {| class="wikitable"
 
−
    ! Name
 
−
    ! Type
 
−
    ! Description
 
−
    |-
 
−
    | Group
 
−
    | String
 
−
    | Used to group similar recipes together in the recipe book.  Tag is present in recipe JSON.
 
−
    |-
 
−
    | Ingredient
 
−
    | Ingredient
 
−
    |
 
−
    |-
 
−
    | Result
 
−
    | [[Slot]]
 
−
    |
 
−
    |}
 
−
|- {{removed}}
 
−
| <code>minecraft:smithing</code>
 
−
| Smithing table recipe
 
−
{{Warning|The Notchian server only sends this recipe if [[Protocol#Feature_Flags|feature flag]] '''update_1_20''' was '''not''' enabled}}
 
−
| As follows:
 
−
  {| class="wikitable"
 
−
    ! Name
 
−
    ! Type
 
−
    ! Description
 
−
    |-
 
−
    | Base
 
−
    | Ingredient
 
−
    | First item.
 
−
    |-
 
−
    | Addition
 
−
    | Ingredient
 
−
    | Second item.
 
−
    |-
 
−
    | Result
 
−
    | [[Slot]]
 
−
    |
 
−
    |}
 
−
|-
 
−
| <code>minecraft:smithing_transform</code>
 
−
| Recipe for smithing netherite gear
 
−
{{change|{{Warning2|The Notchian server only sends this recipe if [[Protocol#Feature_Flags|feature flag]] '''update_1_20''' was enabled. It supersedes the <code>minecraft:smithing</code> recipe type}}|}}
 
−
| As follows:
 
−
  {| class="wikitable"
 
−
    ! Name
 
−
    ! Type
 
−
    ! Description
 
−
    |-
 
−
    | Template
 
−
    | Ingredient
 
−
    | The smithing template.
 
−
    |-
 
−
    | Base
 
−
    | Ingredient
 
−
    | The base item.
 
−
    |-
 
−
    | Addition
 
−
    | Ingredient
 
−
    | The additional ingredient.
 
−
    |-
 
−
    | Result
 
−
    | [[Slot]]
 
−
    |
 
−
    |}
 
−
|-
 
−
| <code>minecraft:smithing_trim</code>
 
−
| Recipe for applying armor trims
 
−
{{change|{{Warning2|The Notchian server only sends this recipe if [[Protocol#Feature_Flags|feature flag]] '''update_1_20''' was enabled. It supersedes the <code>minecraft:smithing</code> recipe type}}|}}
 
−
| As follows:
 
−
  {| class="wikitable"
 
−
    ! Name
 
−
    ! Type
 
−
    ! Description
 
−
    |-
 
−
    | Template
 
−
    | Ingredient
 
−
    | The smithing template.
 
−
    |-
 
−
    | Base
 
−
    | Ingredient
 
−
    | The base item.
 
−
    |-
 
−
    | Addition
 
−
    | Ingredient
 
−
    | The additional ingredient.
 
−
    |}
 
−
|}
 
−
 
 
−
Ingredient is defined as:
 
−
 
 
−
{| class="wikitable"
 
−
! Name
 
−
! Type
 
−
! Description
 
−
|-
 
−
| Count
 
−
| VarInt
 
−
| Number of elements in the following array.
 
−
|-
 
−
| Items
 
−
| Array of [[Slot]]
 
−
| Any item in this array may be used for the recipe.  The count of each item should be 1.
 
−
|}
 
  
 
=== Serverbound ===
 
=== Serverbound ===
  
−
==== Update Sign ====
+
No changes so far.
−
 
 
−
This message is sent from the client to the server when the “Done” button is pushed after placing a sign.
 
−
 
 
−
The server only accepts this packet after [[#Open Sign Editor|Open Sign Editor]], otherwise this packet is silently ignored.
 
−
 
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="6"| 0x2E
 
−
| rowspan="6"| Play
 
−
| rowspan="6"| Server
 
−
| Location
 
−
| Position
 
−
| Block Coordinates.
 
−
|- {{added}}
 
−
| Is Front Text
 
−
| Boolean
 
−
| Whether the updated text is in front or on the back of the sign
 
−
|-
 
−
| Line 1
 
−
| String (384)
 
−
| First line of text in the sign.
 
−
|-
 
−
| Line 2
 
−
| String (384)
 
−
| Second line of text in the sign.
 
−
|-
 
−
| Line 3
 
−
| String (384)
 
−
| Third line of text in the sign.
 
−
|-
 
−
| Line 4
 
−
| String (384)
 
−
| Fourth line of text in the sign.
 
−
|}
 
  
 
== Status ==
 
== Status ==

Revision as of 19:08, 7 June 2023

There are currently no pre-release versions available to document on this page. For the latest stable Minecraft release, see the Protocol page. For previous pre-release pages, see the Protocol version numbers page.

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

No changes so far.

New/modified data types

No changes so far.

Entity Metadata

No changes so far.

Entity

No changes so far.

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.

Status

Clientbound

No changes so far.

Serverbound

No changes so far.

Login

Clientbound

No changes so far.

Serverbound

No changes so far.

Retrieved from "https://wiki.vg/index.php?title=Pre-release_protocol&oldid=18251"