Difference between revisions of "Slot Data"
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The '''Slot''' data structure is how Minecraft represents an item and its associated data in the [[Protocol|Minecraft Protocol]]. | The '''Slot''' data structure is how Minecraft represents an item and its associated data in the [[Protocol|Minecraft Protocol]]. | ||
− | === | + | === Slot === |
{| class="wikitable" | {| class="wikitable" | ||
Line 7: | Line 7: | ||
! Type | ! Type | ||
! Meaning | ! Meaning | ||
+ | |- | ||
+ | | Present | ||
+ | | {{Type|Boolean}} | ||
+ | | True if there is an item in this position; false if it is empty. | ||
|- | |- | ||
| Item ID | | Item ID | ||
− | | | + | | {{Type|Optional}} {{Type|VarInt}} |
− | | The {{Minecraft Wiki| | + | | Omitted if present is false. The {{Minecraft Wiki|Java Edition data values#Blocks|item ID}}. Item IDs are distinct from block IDs; see [[Data Generators]] for more information |
|- | |- | ||
| Item Count | | Item Count | ||
− | | Optional Byte | + | | {{Type|Optional}} {{Type|Byte}} |
− | | | + | | Omitted if present is false. |
|- | |- | ||
| NBT | | NBT | ||
− | | Optional NBT | + | | {{Type|Optional}} {{Type|NBT}} |
− | | | + | | Omitted if present is false. If 0 (TAG_End), there is no NBT data, and no further data follows. Otherwise the byte is the start of an NBT blob as shown below: |
|} | |} | ||
<pre> | <pre> | ||
− | COMPOUND | + | COMPOUND |
LIST 'StoredEnchantments' | LIST 'StoredEnchantments' | ||
COMPOUND | COMPOUND | ||
− | + | STRING 'id' | |
SHORT 'lvl' | SHORT 'lvl' | ||
END | END | ||
Line 37: | Line 41: | ||
END | END | ||
</pre> | </pre> | ||
+ | |||
+ | Note that on old versions, the enchantment id was sent as a SHORT, and not as a STRING. | ||
+ | |||
+ | Since 1.20.2 the root compound also has no name anymore. The NBT data starts with one byte indicating the type, followed by the type-specific data. | ||
See [[NBT]] for more information about the NBT format, and {{Minecraft Wiki|Player.dat format#Item structure|here}} for the contained information and its format. Note that tool durability is included in NBT, among other things. | See [[NBT]] for more information about the NBT format, and {{Minecraft Wiki|Player.dat format#Item structure|here}} for the contained information and its format. Note that tool durability is included in NBT, among other things. | ||
Line 43: | Line 51: | ||
<pre> | <pre> | ||
− | + | 00 | empty slot | |
− | 01 | + | 01 01 01 00 | a stone block |
− | 01 | + | 01 01 01 03 12 34 56 78 | a stone block with (made-up) NBT data |
</pre> | </pre> | ||
[[Category:Protocol Details]] | [[Category:Protocol Details]] | ||
[[Category:Minecraft Modern]] | [[Category:Minecraft Modern]] |
Latest revision as of 23:08, 24 February 2024
The Slot data structure is how Minecraft represents an item and its associated data in the Minecraft Protocol.
Slot
Name | Type | Meaning |
---|---|---|
Present | Boolean | True if there is an item in this position; false if it is empty. |
Item ID | Optional VarInt | Omitted if present is false. The item ID. Item IDs are distinct from block IDs; see Data Generators for more information |
Item Count | Optional Byte | Omitted if present is false. |
NBT | Optional NBT | Omitted if present is false. If 0 (TAG_End), there is no NBT data, and no further data follows. Otherwise the byte is the start of an NBT blob as shown below: |
COMPOUND LIST 'StoredEnchantments' COMPOUND STRING 'id' SHORT 'lvl' END COMPOUND ... END ... END INT 'Unbreakable' ... END
Note that on old versions, the enchantment id was sent as a SHORT, and not as a STRING.
Since 1.20.2 the root compound also has no name anymore. The NBT data starts with one byte indicating the type, followed by the type-specific data.
See NBT for more information about the NBT format, and here for the contained information and its format. Note that tool durability is included in NBT, among other things.
Examples
00 | empty slot 01 01 01 00 | a stone block 01 01 01 03 12 34 56 78 | a stone block with (made-up) NBT data