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| − | This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.20.2, protocol 764]]) to the current pre-release (currently [[Protocol version numbers|23w40a, protocol {{Snapshot PVN|1073741978}}]]). 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. |
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| | === Data types === | | === Data types === |
| | | | |
| − | ==== NBT ====
| + | No changes so far. |
| − | | |
| − | The NBT specification was changed so that the root tag is no longer required to be a [[NBT#Specification:compound_tag|Compound Tag]] when sent over the network.
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| − | | |
| − | Presently in the pre-release, only [[NBT#Specification:compound_tag|Compound Tag]] and [[NBT#Specification:string_tag|String Tag]] types are used as root, but the Notchian server/client implementation is able to handle [[NBT#Specification|NBT Tags]] of any type.
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| − | | |
| − | ==== Chat ====
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| − | | |
| − | The [[Chat]] type is now serialized as a [[NBT#Specification|NBT Tag]] instead of a JSON String.
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| − | | |
| − | {| class="wikitable"
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| − | |-
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| − | ! Name
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| − | ! Size (bytes)
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| − | ! Encodes
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| − | ! Notes
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| − | |- {{removed}}
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| − | ! id=Definitions:chat | [[#Definitions:chat|Chat]]
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| − | | ≥ 1 <br />≤ (262144×4) + 3
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| − | | See [[Chat]]
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| − | | Encoded as a String with max length of 262144.
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| − | |- {{added}}
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| − | ! id=Definitions:chat | [[#Definitions:chat|Chat]]
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| − | | Varies
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| − | | See [[Chat]]
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| − | | Encoded as a [[NBT|NBT Tag]], with the type of tag used depending on the case:
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| − | * As a [[NBT#Specification:string_tag|String Tag]]: For components only containing text (no styling, no events etc.).
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| − | * As a [[NBT#Specification:compound_tag|Compound Tag]]: Every other case.
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| − | |}
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| − | | |
| − | This affects all packets and data types containing Chat fields:
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| − | * [[Protocol#Disconnect (login)|Disconnect (login)]]
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| − | * [[Protocol#Disconnect (configuration)|Disconnect (configuration)]]
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| − | * [[Protocol#Resource Pack (configuration)|Resource Pack (configuration)]]
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| − | * [[Protocol#Boss Bar|Boss Bar]]
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| − | * [[Protocol#Command Suggestions Response|Command Suggestions Response]]
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| − | * [[Protocol#Disconnect (play)|Disconnect (play)]]
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| − | * [[Protocol#Disguised Chat Message|Disguised Chat Message]]
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| − | * [[Protocol#Map Data|Map Data]]
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| − | * [[Protocol#Open Screen|Open Screen]]
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| − | * [[Protocol#Player Chat Message|Player Chat Message]]
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| − | * [[Protocol#Combat Death|Combat Death]]
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| − | * [[Protocol#Player Info Update|Player Info Update]]
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| − | * [[Protocol#Resource Pack (play)|Resource Pack (play)]]
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| − | * [[Protocol#Server Data|Server Data]]
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| − | * [[Protocol#Set Action Bar Text|Set Action Bar Text]]
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| − | * [[Protocol#Update Objectives|Update Objectives]]
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| − | * [[Protocol#Update Teams|Update Teams]]
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| − | * [[Protocol#Set Subtitle Text|Set Subtitle Text]]
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| − | * [[Protocol#Set Title Text|Set Title Text]]
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| − | * [[Protocol#System Chat Message|System Chat Message]]
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| − | * [[Protocol#Set Tab List Header And Footer|Set Tab List Header And Footer]]
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| − | * [[Protocol#Update Advancements|Update Advancements]]
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| − | <br>
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| − | * [[Slot|Slot data type (values in the item NBT field)]]
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| − | * [[Entity_metadata#Entity_Metadata_Format|Chat entity metadata type]]
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| − | * [[Entity_metadata#Entity_Metadata_Format|OptChat entity metadata type]]
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| | | | |
| | === Packets === | | === Packets === |
| − |
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| − | {| class="wikitable"
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| − | ! ID
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| − | ! Packet name
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| − | !colspan="2"| Documentation
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| − | |-
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| − | !colspan="4"| Play clientbound
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| − | {{PacketList|0x20|Game Event}}
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| − | |}
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| − |
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| − | == New/modified data types ==
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| − |
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| − | No changes so far.
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| − |
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| − | == Entity Metadata ==
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| − |
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| − | No changes so far.
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| − |
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| − | === Entity ===
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| − |
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| − | No changes so far.
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| − |
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| − | == Block Actions ==
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| − |
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| − | No changes so far.
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| − |
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| − | == Inventories ==
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| − |
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| − | No changes so far.
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| − |
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| − | == Plugin Channels ==
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| − |
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| − | No changes so far.
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| − |
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| − | == Status ==
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| − |
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| − | === Clientbound ===
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| − |
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| − | No changes so far.
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| − |
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| − | === Serverbound ===
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| − |
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| − | No changes so far.
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| − |
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| − | == Login ==
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| − |
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| − | === Clientbound ===
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| − |
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| − | No changes so far.
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| − |
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| − | === Serverbound ===
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| − |
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| − | No changes so far.
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| − |
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| − | == Configuration ==
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| − |
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| − | === Clientbound ===
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| − |
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| − | No changes so far.
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| − |
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| − | === Serverbound ===
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| − |
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| − | No changes so far.
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| − |
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| − | == Play ==
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| − |
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| − | === Clientbound ===
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| − |
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| − | ==== Game Event ====
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| − |
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| − | Used for a wide variety of game events, from weather to bed use to game mode to demo messages.
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| − |
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| − | {| class="wikitable"
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| − | ! Packet ID
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| − | ! State
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| − | ! Bound To
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| − | ! Field Name
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| − | ! Field Type
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| − | ! Notes
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| − | |-
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| − | | rowspan="2"| 0x20
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| − | | rowspan="2"| Play
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| − | | rowspan="2"| Client
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| − | | Event
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| − | | Unsigned Byte
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| − | | See below.
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| − | |-
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| − | | Value
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| − | | Float
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| − | | Depends on Event.
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| − | |}
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| − |
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| − | ''Events'':
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| − |
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| − | {| class="wikitable"
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| − | ! Event
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| − | ! Effect
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| − | ! Value
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| − | |-
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| − | | 0
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| − | | No respawn block available
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| − | | Note: Displays message 'block.minecraft.spawn.not_valid' (You have no home bed or charged respawn anchor, or it was obstructed) to the player.
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| − | |-
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| − | | 1
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| − | | Begin raining
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| − | |
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| − | |-
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| − | | 2
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| − | | End raining
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| − | |
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| − | |-
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| − | | 3
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| − | | Change game mode
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| − | | 0: Survival, 1: Creative, 2: Adventure, 3: Spectator.
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| − | |-
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| − | | 4
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| − | | Win game
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| − | | 0: Just respawn player.<br>1: Roll the credits and respawn player.<br>Note that 1 is only sent by notchian server when player has not yet achieved advancement "The end?", else 0 is sent.
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| − | |-
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| − | | 5
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| − | | Demo event
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| − | | 0: Show welcome to demo screen.<br>101: Tell movement controls.<br>102: Tell jump control.<br>103: Tell inventory control.<br>104: Tell that the demo is over and print a message about how to take a screenshot.
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| − | |-
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| − | | 6
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| − | | Arrow hit player
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| − | | Note: Sent when any player is struck by an arrow.
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| − | |-
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| − | | 7
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| − | | Rain level change
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| − | | Note: Seems to change both sky color and lighting.<br>Rain level ranging from 0 to 1.
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| − | |-
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| − | | 8
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| − | | Thunder level change
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| − | | Note: Seems to change both sky color and lighting (same as Rain level change, but doesn't start rain). It also requires rain to render by notchian client.<br>Thunder level ranging from 0 to 1.
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| − | |-
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| − | | 9
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| − | | Play pufferfish sting sound
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| − | |-
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| − | | 10
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| − | | Play elder guardian mob appearance (effect and sound)
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| − | |
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| − | |-
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| − | | 11
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| − | | Enable respawn screen
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| − | | 0: Enable respawn screen.<br>1: Immediately respawn (sent when the <code>doImmediateRespawn</code> gamerule changes).
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| − | |-
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| − | | 12
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| − | | Limited crafting
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| − | | 0: Disable limited crafting.<br>1: Enable limited crafting (sent when the <code>doLimitedCrafting</code> gamerule changes).
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| − | |- {{added}}
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| − | | 13
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| − | | Start waiting for level chunks
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| − | | Instructs the client to begin the waiting process for the level chunks.<br>Sent by the server after the level is cleared on the client and is being re-sent (either during the first, or subsequent reconfigurations).
| |
| − | |}
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| − |
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| − | === Serverbound ===
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| | | | |
| | No changes so far. | | No changes so far. |
| − |
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| | | | |
| | [[Category:Minecraft Modern]] | | [[Category:Minecraft Modern]] |
