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| − | This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently 1.4.6, protocol 51) to the current pre-release (or weekly release). Note that this page contains bleeding-edge information that may not be completely or correctly documented.
| + | There is currently a pre-release version available: 1.21-pre2, but it has not yet been documented. 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. |
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| − | == New Packets ==
| + | 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. |
| | | | |
| − | === Create Scoreboard (0xCE) === | + | == Contents == |
| | | | |
| − | ''Server to Client''
| + | <div style="float:right;">__TOC__</div> |
| | | | |
| − | This is sent to the client when it should create a new scoreboard or remove one.
| + | === Data types === |
| | | | |
| − | {| class="wikitable"
| + | No changes so far. |
| − | |- class="row0"
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| − | | class="col0" | Packet ID
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| − | | class="col1" | Field Name
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| − | | class="col2" | Field Type
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| − | | class="col3" | Example
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| − | | class="col4" | Notes
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| − | |- class="row1"
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| − | | class="col0 centeralign" rowspan=3 | 0xCE
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| − | | class="col1 centeralign" | Scoreboard Name
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| − | | class="col2 centeralign" | string
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| − | | class="col3 centeralign" | <code>deaths</code>
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| − | | class="col4" | An unique name for the scoreboard.
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| − | |- class="row2"
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| − | | class="col0 centeralign" | Scoreboard Display Text
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| − | | class="col1 centeralign" | string
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| − | | class="col2 centeralign" | <code>Deaths</code>
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| − | | class="col3" | The text to be displayed for the score.
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| − | |- class="row3"
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| − | | class="col0 centeralign" | Create/Remove
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| − | | class="col1 centeralign" | byte
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| − | | class="col2 centeralign" | 0
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| − | | class="col3" | 0 to create the scoreboard. 1 to remove the scoreboard .
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| − | |- class="row4"
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| − | | class="col0" | Total Size:
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| − | | class="col1 rightalign" colspan="4" | 5 bytes + length of string
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| − | |}
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| | | | |
| − | === Update Score (0xCF) === | + | === Packets === |
| | | | |
| − | ''Server to Client''
| + | No changes so far. |
| | | | |
| − | This is sent to the client when it should update a scoreboard item.
| + | [[Category:Minecraft Modern]] |
| − | | |
| − | {| class="wikitable"
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| − | |- class="row0"
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| − | | class="col0" | Packet ID
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| − | | class="col1" | Field Name
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| − | | class="col2" | Field Type
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| − | | class="col3" | Example
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| − | | class="col4" | Notes
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| − | |- class="row1"
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| − | | class="col0 centeralign" rowspan=4 | 0xCF
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| − | | class="col1 centeralign" | Item Name
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| − | | class="col2 centeralign" | string
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| − | | class="col3 centeralign" | <code>Bob</code>
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| − | | class="col4" | An unique name to be displayed in the list.
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| − | |- class="row2"
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| − | | class="col0 centeralign" | Update/Remove
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| − | | class="col1 centeralign" | byte
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| − | | class="col2 centeralign" | 0
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| − | | class="col3" | 0 to create/update an item. 1 to remove an item.
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| − | |- class="row3"
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| − | | class="col0 centeralign" | Score Name
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| − | | class="col1 centeralign" | string
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| − | | class="col2 centeralign" | <code>deaths</code>
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| − | | class="col3" | The unique name for the scoreboard to be updated. Only sent to Update/Remove equals 0.
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| − | |- class="row4"
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| − | | class="col0 centeralign" | Value
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| − | | class="col1 centeralign" | integer
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| − | | class="col2 centeralign" | 5
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| − | | class="col3" | The score to be displayed next to the entry. Only sent to Update/Remove equals 0.
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| − | |- class="row5"
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| − | | class="col0" | Total Size:
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| − | | class="col1 rightalign" colspan="4" | 9 bytes + length of strings
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| − | |}
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| − | | |
| − | === Display scoreboard (0xD0) ===
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| − | | |
| − | ''Server to Client''
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| − | | |
| − | This is sent to the client when it should display a scoreboard.
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| − | | |
| − | {| class="wikitable"
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| − | |- class="row0"
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| − | | class="col0" | Packet ID
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| − | | class="col1" | Field Name
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| − | | class="col2" | Field Type
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| − | | class="col3" | Example
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| − | | class="col4" | Notes
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| − | |- class="row1"
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| − | | class="col0 centeralign" rowspan=2 | 0xD0
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| − | | class="col1 centeralign" | Position
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| − | | class="col2 centeralign" | byte
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| − | | class="col3 centeralign" | 1
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| − | | class="col4" | The position of the scoreboard. 0 = list, 1 = sidebar.
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| − | |- class="row1"
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| − | | class="col0 centeralign" | Score Name
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| − | | class="col1 centeralign" | string
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| − | | class="col2 centeralign" | <code>deaths</code>
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| − | | class="col3" | The unique name for the scoreboard to be displayed.
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| − | |- class="row2"
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| − | | class="col0" | Total Size:
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| − | | class="col1 rightalign" colspan="4" | 3 bytes + length of string
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| − | |}
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| − | | |
| − | == Changed Packets ==
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| − | | |
| − | === Open Window (0x64) ===
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| − | | |
| − | ''Server to Client''
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| − | | |
| − | This is sent to the client when it should open an inventory, such as a chest, workbench, or furnace. This message is not sent anywhere for clients opening their own inventory.
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| − | | |
| − | {| class="wikitable"
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| − | |- class="row0"
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| − | | class="col0" | Packet ID
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| − | | class="col1" | Field Name
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| − | | class="col2" | Field Type
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| − | | class="col3" | Example
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| − | | class="col4" | Notes
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| − | |- class="row1"
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| − | | class="col0 centeralign" rowspan=5 | 0x64
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| − | | class="col1 centeralign" | Window id
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| − | | class="col2 centeralign" | byte
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| − | | class="col3 centeralign" | 123
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| − | | class="col4" | A unique id number for the window to be displayed. Notchian server implementation is a counter, starting at 1.
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| − | |- class="row1"
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| − | | class="col0 centeralign" | Inventory Type
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| − | | class="col1 centeralign" | byte
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| − | | class="col2 centeralign" | 2
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| − | | class="col3" | The window type to use for display. Check below
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| − | |- class="row1"
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| − | | class="col0 centeralign" | Window title
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| − | | class="col1 centeralign" | string
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| − | | class="col2 centeralign" | <code>Chest</code>
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| − | | class="col3" | The title of the window.
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| − | |- class="row1"
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| − | | class="col0 centeralign" | Number of Slots
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| − | | class="col1 centeralign" | byte
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| − | | class="col2 centeralign" | 3
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| − | | class="col3" | Number of slots in the window (excluding the number of slots in the player inventory).
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| − | |- class="row1"
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| − | | class="col0 centeralign" | Use provided window title
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| − | | class="col1 centeralign" | boolean
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| − | | class="col2 centeralign" | 1
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| − | | class="col3" | If false, the client will look up a string like "window.minecart". If true, the client uses what the server provides.
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| − | |- class="row2"
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| − | | class="col0" | Total Size:
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| − | | class="col1 rightalign" colspan="4" | 6 bytes + length of string
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| − | |}
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| − | | |
| − | == Changed Data Types ==
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| − | | |
| − | === Entity Metadata ===
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| − | | |
| − | ==== Mobs ====
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| − | | |
| − | '''Index 5, string: Mob Name'''
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| − | | |
| − | The name to be displayed on the nameplate above the entity (If Show nameplate = 1).
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| − | | |
| − | '''Index 6, byte: Show nameplate'''
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| − | | |
| − | Set to 1 to show the nameplate, otherwise it is not displayed.
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| − | | |
| − | ==== Minecart ====
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| − | | |
| − | '''Index 20, int: Block id & metadata'''
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| − | | |
| − | The id and metadata of the block to be shown in the minecart (If Show block = 1).
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| − | | |
| − | The block id can be obtained by: value & 0xFFFF.
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| − | | |
| − | The block metadata can be obtained by: value >> 16.
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| − | | |
| − | '''Index 21, int: Block position'''
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| − | | |
| − | The position (Y axis) of the block in the minecart. (Default: 6)
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| − | | |
| − | '''Index 22, byte: Show block'''
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| − | | |
| − | Set to 1 to show the block in the minecart, otherwise the block is not displayed.
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| − | | |
| − | == Removed Packets ==
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| − | | |
| − | -None-
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| − | | |
| − | == Protocol History ==
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| − | | |
| − | 13w04a: Protocol version is now 55. New packets for scoreboards.
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| − | | |
| − | 13w03a: Protocol version is now 54.
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| − | | |
| − | 13w02a: Protocol version is now 53. '''All''' Minecart entities use [[Entities#Objects|object type]] 10, and send the block within seperately. Minecarts now send their type as [[Object_Data|object data]] in [[Protocol#Spawn_Object.2FVehicle_.280x17.29|0x17]]. Added boolean to 0x64 (Open Window) to determine whether or not to use the provided window title.
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