Difference between revisions of "Pre-release protocol"

From wiki.vg
Jump to navigation Jump to search
m (→‎Display scoreboard (0xD0): Fixed case on packet name)
(Added new team packet (Needs testing). Added new display position(0xD0).)
Line 94: Line 94:
 
| class="col2 centeralign" | byte
 
| class="col2 centeralign" | byte
 
| class="col3 centeralign" | 1
 
| class="col3 centeralign" | 1
−
| class="col4" | The position of the scoreboard. 0 = list, 1 = sidebar.
+
| class="col4" | The position of the scoreboard. 0 = list, 1 = sidebar, 2 = belowName.
−
|- class="row1"
+
|- class="row2"
 
| class="col0 centeralign" | Score Name
 
| class="col0 centeralign" | Score Name
 
| class="col1 centeralign" | string
 
| class="col1 centeralign" | string
 
| class="col2 centeralign" | <code>deaths</code>
 
| class="col2 centeralign" | <code>deaths</code>
 
| class="col3" | The unique name for the scoreboard to be displayed.
 
| class="col3" | The unique name for the scoreboard to be displayed.
 +
|- class="row3"
 +
| class="col0" | Total Size:
 +
| class="col1 rightalign" colspan="4" | 3 bytes + length of string
 +
|}
 +
 +
=== Teams (0xD1) ===
 +
 +
''Server to Client''
 +
 +
(Needs testing)
 +
 +
{| class="wikitable"
 +
|- class="row0"
 +
| class="col0" | Packet ID
 +
| class="col1" | Field Name
 +
| class="col2" | Field Type
 +
| class="col3" | Example
 +
| class="col4" | Notes
 +
|- class="row1"
 +
| class="col0 centeralign" rowspan=8 | 0xD1
 +
| class="col1 centeralign" | Team Name
 +
| class="col2 centeralign" | string
 +
| class="col3 centeralign" | mcdevs
 +
| class="col4" | An unique name for the team. (Shares with scoreboard).
 
|- class="row2"
 
|- class="row2"
 +
| class="col0 centeralign" | Mode
 +
| class="col1 centeralign" | byte
 +
| class="col2 centeralign" | 0
 +
| class="col3" | If 0 then the team is created.
 +
If 1 then the team is removed.
 +
 +
If 2 the team team information is updated.
 +
 +
If 3 then new players are added to the team.
 +
 +
If 4 then players are removed from the team.
 +
|- class="row3"
 +
| class="col1 centeralign" | Team Display Name
 +
| class="col2 centeralign" | string
 +
| class="col3 centeralign" | McDevs
 +
| class="col4" |  Only if Mode = 0 or 2.
 +
|- class="row3"
 +
| class="col1 centeralign" | Team Prefix?
 +
| class="col2 centeralign" | string
 +
| class="col3 centeralign" |
 +
| class="col4" |  Only if Mode = 0 or 2.
 +
|- class="row4"
 +
| class="col1 centeralign" | Team Suffix?
 +
| class="col2 centeralign" | string
 +
| class="col3 centeralign" |
 +
| class="col4" |  Only if Mode = 0 or 2.
 +
|- class="row5"
 +
| class="col1 centeralign" | Friendly fire?
 +
| class="col2 centeralign" | bool
 +
| class="col3 centeralign" | false
 +
| class="col4" |  Only if Mode = 0 or 2.
 +
|- class="row6"
 +
| class="col1 centeralign" | Player count
 +
| class="col2 centeralign" | short
 +
| class="col3 centeralign" | 0
 +
| class="col4" |  Only if Mode = 0 or 3 or 4.
 +
|- class="row7"
 +
| class="col1 centeralign" | Players
 +
| class="col2 centeralign" | Array of strings
 +
| class="col3 centeralign" |
 +
| class="col4" |  Only if Mode = 0 or 3 or 4.
 +
|- class="row8"
 
| class="col0" | Total Size:
 
| class="col0" | Total Size:
−
| class="col1 rightalign" colspan="4" | 3 bytes + length of string
+
| class="col1 rightalign" colspan="4" | Variable
 
|}
 
|}
  
Line 188: Line 254:
  
 
== Protocol History ==
 
== Protocol History ==
 +
13w05a: Protocol version is now 56. New packets for teams.
  
 
13w04a: Protocol version is now 55. New packets for scoreboards.
 
13w04a: Protocol version is now 55. New packets for scoreboards.

Revision as of 05:05, 31 January 2013

This page documents the changes from the 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.

New Packets

Create Scoreboard (0xCE)

Server to Client

This is sent to the client when it should create a new scoreboard or remove one.

Packet ID Field Name Field Type Example Notes
0xCE Scoreboard Name string deaths An unique name for the scoreboard.
Scoreboard Display Text string Deaths The text to be displayed for the score.
Create/Remove byte 0 0 to create the scoreboard. 1 to remove the scoreboard .
Total Size: 5 bytes + length of string

Update Score (0xCF)

Server to Client

This is sent to the client when it should update a scoreboard item.

Packet ID Field Name Field Type Example Notes
0xCF Item Name string Bob An unique name to be displayed in the list.
Update/Remove byte 0 0 to create/update an item. 1 to remove an item.
Score Name string deaths The unique name for the scoreboard to be updated. Only sent to Update/Remove equals 0.
Value integer 5 The score to be displayed next to the entry. Only sent to Update/Remove equals 0.
Total Size: 9 bytes + length of strings

Display Scoreboard (0xD0)

Server to Client

This is sent to the client when it should display a scoreboard.

Packet ID Field Name Field Type Example Notes
0xD0 Position byte 1 The position of the scoreboard. 0 = list, 1 = sidebar, 2 = belowName.
Score Name string deaths The unique name for the scoreboard to be displayed.
Total Size: 3 bytes + length of string

Teams (0xD1)

Server to Client

(Needs testing)

Packet ID Field Name Field Type Example Notes
0xD1 Team Name string mcdevs An unique name for the team. (Shares with scoreboard).
Mode byte 0 If 0 then the team is created.

If 1 then the team is removed.

If 2 the team team information is updated.

If 3 then new players are added to the team.

If 4 then players are removed from the team.

Team Display Name string McDevs Only if Mode = 0 or 2.
Team Prefix? string Only if Mode = 0 or 2.
Team Suffix? string Only if Mode = 0 or 2.
Friendly fire? bool false Only if Mode = 0 or 2.
Player count short 0 Only if Mode = 0 or 3 or 4.
Players Array of strings Only if Mode = 0 or 3 or 4.
Total Size: Variable

Changed Packets

Open Window (0x64)

Server to Client

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.

Packet ID Field Name Field Type Example Notes
0x64 Window id byte 123 A unique id number for the window to be displayed. Notchian server implementation is a counter, starting at 1.
Inventory Type byte 2 The window type to use for display. Check below
Window title string Chest The title of the window.
Number of Slots byte 3 Number of slots in the window (excluding the number of slots in the player inventory).
Use provided window title boolean 1 If false, the client will look up a string like "window.minecart". If true, the client uses what the server provides.
Total Size: 6 bytes + length of string

Changed Data Types

Entity Metadata

Mobs

Index 5, string: Mob Name

The name to be displayed on the nameplate above the entity (If Show nameplate = 1).

Index 6, byte: Show nameplate

Set to 1 to show the nameplate, otherwise it is not displayed.

Minecart

Index 20, int: Block id & metadata

The id and metadata of the block to be shown in the minecart (If Show block = 1).

The block id can be obtained by: value & 0xFFFF.

The block metadata can be obtained by: value >> 16.

Index 21, int: Block position

The position (Y axis) of the block in the minecart. (Default: 6)

Index 22, byte: Show block

Set to 1 to show the block in the minecart, otherwise the block is not displayed.

Removed Packets

-None-

Protocol History

13w05a: Protocol version is now 56. New packets for teams.

13w04a: Protocol version is now 55. New packets for scoreboards.

13w03a: Protocol version is now 54.

13w02a: Protocol version is now 53. All Minecart entities use object type 10, and send the block within seperately. Minecarts now send their type as object data in 0x17. Added boolean to 0x64 (Open Window) to determine whether or not to use the provided window title.

Retrieved from "https://wiki.vg/index.php?title=Pre-release_protocol&oldid=2948"