Difference between revisions of "Pre-release protocol"

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This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently 1.4.2) to the current pre-release (or weekly release).
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This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently 1.4.4, protocol 49) to the current pre-release (or weekly release).
  
 
== New Packets ==
 
== New Packets ==
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== Changed Packets ==
 
== Changed Packets ==
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-None-
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=== Item Data (0x83) ===
 
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''Server to Client''
 
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Sent to specify complex data on an item; currently used only for maps.
 
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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" | 0x83
 
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| class="col1 centeralign" | Item Type
 
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| class="col2 centeralign" | short
 
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| class="col3 centeralign" | <code>358</code>
 
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| class="col4" | Type of item being modified
 
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|- class="row2"
 
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| class="col0 centeralign" | Item ID
 
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| class="col1 centeralign" | short
 
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| class="col2 centeralign" | <code>0</code>
 
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| class="col3" | The ID (damage value) of the item being modified
 
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|- class="row3"
 
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| class="col0 centeralign" | Text length
 
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| class="col1 centeralign" | short
 
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| class="col2 centeralign" | <code>35</code>
 
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| class="col3" | Length of following byte array
 
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|- class="row4"
 
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| class="col0 centeralign" | Text
 
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| class="col1 centeralign" | byte array
 
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| class="col2 centeralign" | {0,0,0,20,20,20,20,20}
 
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| class="col3" | ASCII text.
 
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|- class="row9"
 
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| class="col0" | Total Size:
 
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| class="col1 rightalign" colspan="4" | 7 bytes + Text length
 
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|}
 
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'''Maps'''
 
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If the first byte of the text is 0, the next two bytes are X start and Y start and the rest of the bytes are the colors in that column.
 
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If the first byte of the text is 1, the rest of the bytes are in groups of three: (data, x, y). The lower half of the data is the type (always 0 under vanilla) and the upper half is the direction.
 
  
 
== Changed Data Types ==
 
== Changed Data Types ==
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== Protocol History ==
 
== Protocol History ==
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-None-
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'''1.4.4 Pre-release'''
 
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Protocol version is now 49. Packet 0x83 updated.
 
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'''1.4.3 Pre-release'''
 
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Protocol version is now 48. Entity metadata updated.
 

Revision as of 18:52, 14 November 2012

This page documents the changes from the last stable Minecraft release (currently 1.4.4, protocol 49) to the current pre-release (or weekly release).

New Packets

-None-

Changed Packets

-None-

Changed Data Types

Entity Metadata has an additional field for Slot data types. It now has a short (-1) at the end if there is no further data, or that short is the length of the following NBT array, presumably gzipped NBT data.

Removed Packets

-None-

Protocol History

-None-

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