Difference between revisions of "Slot Data"
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The structure consists of at least a short, which gives the item/block ID [http://www.minecraftwiki.net/wiki/Block_ids]. A value of <code>-1</code> signifies that the slot is empty, and no further data follows. | The structure consists of at least a short, which gives the item/block ID [http://www.minecraftwiki.net/wiki/Block_ids]. A value of <code>-1</code> signifies that the slot is empty, and no further data follows. | ||
| − | If the block ID is not <code>-1</code>, three more fields follow. These fields are a byte (item count), a short (item damage) and another | + | If the block ID is not <code>-1</code>, three more fields follow. These fields are a byte (item count), a short (item damage) and another short (nbt data length). |
| − | If the | + | If the final short is <code>0xffff</code>, there is no NBT data, and no further data follows. Otherwise that short is the start of the nbt blob. |
The format of this data is as follows: | The format of this data is as follows: | ||
Revision as of 05:13, 10 January 2015
The slot data structure is how Minecraft represents an item and its associated data in the minecraft protocol
Format
The structure consists of at least a short, which gives the item/block ID [1]. A value of -1 signifies that the slot is empty, and no further data follows.
If the block ID is not -1, three more fields follow. These fields are a byte (item count), a short (item damage) and another short (nbt data length).
If the final short is 0xffff, there is no NBT data, and no further data follows. Otherwise that short is the start of the nbt blob.
The format of this data is as follows:
COMPOUND: ''
LIST: 'ench'
COMPOUND
SHORT: 'id'
SHORT: 'lvl'
END
COMPOUND
...etc
END
END
Each of the inner, untagged COMPOUNDs represents an enchantment, with its ID[2] and level given as child SHORT elements.
Examples
ff ff | empty slot
01 16 01 00 00 ff ff | a diamond pickaxe
01 16 01 00 00 00 04 CA FE BA BE | a diamond pickaxe with (made-up) NBT data
