Difference between revisions of "Slot Data"

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  | Item ID
 
  | Item ID
 
  | Short
 
  | Short
  | The {{Minecraft Wiki|Data values#Block IDs|item ID}}. A value of <code>-1</code> signifies that the slot is empty, and no further data follows. Item IDs are distinct from block IDs; see [
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  | The {{Minecraft Wiki|Data values#Block IDs|item ID}}. A value of <code>-1</code> signifies that the slot is empty, and no further data follows. Item IDs are distinct from block IDs; see [[Data Generators]] for more information
 
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  | Item Count
 
  | Item Count

Revision as of 00:17, 9 September 2018

The Slot data structure is how Minecraft represents an item and its associated data in the Minecraft Protocol.

Slot

Name Type Meaning
Item ID Short The item ID. A value of -1 signifies that the slot is empty, and no further data follows. Item IDs are distinct from block IDs; see Data Generators for more information
Item Count Optional Byte Not present if Item ID is -1.
NBT Optional NBT Not present if Item ID is -1. If 0, 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
        SHORT 'id'
        SHORT 'lvl'
      END
      COMPOUND
        ...
      END
      ...
    END
    INT 'Unbreakable'
    ...
  END

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

  ff ff                      | empty slot
  01 16 01 00                | a diamond pickaxe
  01 16 01 01 04 CA FE BA BE | a diamond pickaxe with (made-up) NBT data