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| − | This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently 1.5, protocol 60) to the current pre-release, 13w16a (protocol 62). 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. |
| | | | |
| − | == 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. |
| | | | |
| − | -None-
| + | == Contents == |
| | | | |
| − | == Changed Packets == | + | <div style="float:right;">__TOC__</div> |
| | | | |
| − | === Update Health (0x08) === | + | === Data types === |
| | | | |
| − | ''Server to Client''
| + | No changes so far. |
| | | | |
| − | http://wiki.vg/Protocol#Update_Health_.280x08.29
| + | === Packets === |
| | | | |
| − | {| 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" | 0x08
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| − | | class="col1 centeralign" | Health
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| − | | class="col2 centeralign" | '''float'''
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| − | | class="col3 centeralign" | '''20.0'''
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| − | | class="col4" | 0 or less = dead, 20 = full HP
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| − | |- class="row2"
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| − | | class="col0 centeralign" | Food
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| − | | class="col1 centeralign" | short
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| − | | class="col2 centeralign" | 20
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| − | | class="col3" | 0 - 20
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| − | |- class="row3"
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| − | | class="col0 centeralign" | Food Saturation
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| − | | class="col1 centeralign" | float
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| − | | class="col2 centeralign" | 5.0
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| − | | class="col3" | Seems to vary from 0.0 to 5.0 in integer increments
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| − | |- class="row4"
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| − | | class="col0" | Total Size:
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| − | | class="col1 rightalign" colspan="4" | '''11 bytes'''
| |
| − | |}
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| | | | |
| − | === Entity Action (0x13) ===
| + | [[Category:Minecraft Modern]] |
| − | | |
| − | ''Client to Server''
| |
| − | | |
| − | Sent at least when crouching, leaving a bed, or sprinting.
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| − | To send action animation to client use 0x28.
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| − | The client will send this with Action ID = 3 when "Leave Bed" is clicked.
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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" | 0x13
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| − | | class="col1 centeralign" | EID
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| − | | class="col2 centeralign" | int
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| − | | class="col3 centeralign" | <code>55534</code>
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| − | | class="col4" | Player ID
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| − | |- class="row2"
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| − | | class="col0 centeralign" | Action ID
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| − | | class="col1 centeralign" | byte
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| − | | class="col2 centeralign" | <code>1</code>
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| − | | class="col3" | The ID of the action, see below.
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| − | |- class="row2"
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| − | | class="col0 centeralign" | Unknown
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| − | | class="col1 centeralign" | byte[]
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| − | | class="col2 centeralign" | <code>{ 0, 0, 0, 0 }</code>
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| − | | class="col3" | Probably an int32
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| − | |- class="row3"
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| − | | class="col0" | Total Size:
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| − | | class="col1 rightalign" colspan="4" | 10 bytes
| |
| − | |}
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| − | | |
| − | Action ID can be one of the following values:
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| − | | |
| − | {| class="wikitable"
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| − | |-
| |
| − | ! ID
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| − | ! Action
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| − | |-
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| − | | 1
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| − | | Crouch
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| − | |-
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| − | | 2
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| − | | Uncrouch
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| − | |-
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| − | | 3
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| − | | Leave bed
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| − | |-
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| − | | 4
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| − | | Start sprinting
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| − | |-
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| − | | 5
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| − | | Stop sprinting
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| − | |}
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| − | | |
| − | === Player Abilities (0xCA) ===
| |
| − | | |
| − | ''Two-Way''
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| − | | |
| − | The latter 2 bytes are used to indicate the walking and flying speeds respectively, while the first byte is used to determine the value of 4 booleans.
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| − |
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| − | These booleans are whether damage is disabled (god mode, '8' bit), whether the player can fly ('4' bit), whether the player is flying ('2' bit), and whether the player is in creative mode ('1' bit).
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| − |
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| − | To get the values of these booleans, simply AND (&) the byte with 1,2,4 and 8 respectively, to get the 0 or 1 bitwise value. To set them OR (|) them with their repspective masks.
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| − | The vanilla client sends this packet when the player starts/stops flying with the second parameter changed accordingly. All other parameters are ignored by the vanilla server.
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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=4 | 0xCA
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| − | | class="col1 centeralign" | Flags
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| − | | class="col2 centeralign" | byte
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| − | | class="col3 centeralign" | 5
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| − | | class="col4" |
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| − | |- class="row2"
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| − | | class="col0 centeralign" | Flying speed
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| − | | class="col1 centeralign" | byte
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| − | | class="col2 centeralign" | 12
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| − | | class="col3" |
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| − | |- class="row3"
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| − | | class="col0 centeralign" | Walking speed
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| − | | class="col1 centeralign" | byte
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| − | | class="col2 centeralign" | 25
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| − | | class="col3" |
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| − | |- class="row3"
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| − | | class="col0 centeralign" | '''Unknown'''
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| − | | class="col1 centeralign" | byte[9]
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| − | | class="col2 centeralign" | <code>{ 0xCC, 0xCD, 0x3D, 0xCC, 0xCC, 0xCD, 0x10, 0x00, 0x00 }</code>
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| − | | class="col3" | Probably multiple fields.
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| − | |- class="row2"
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| − | | class="col0" | Total Size:
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| − | | class="col1 rightalign" colspan="4" | 13 bytes
| |
| − | |}
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| − | | |
| − | == Removed Packets ==
| |
| − | | |
| − | -None-
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| − | | |
| − | == Changed Data Types ==
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| − | | |
| − | -None-
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| − | | |
| − | == Protocol History ==
| |
| − | | |
| − | -None-
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