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Structure block file format
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Java Edition only
Structure files are stored as a gzipped NBT file. This file format is used to store structures such as End city, Igloo and Fossil into the assets/minecraft/structures folder, inside the minecraft.jar. Custom structure can also be saved and loaded using the Structure Block. These structures are saved into the structures folder of the minecraft map.
NBT Structure[edit | edit source]
All the specified positions are relative to the block located toward -X, -Y, -Z
: The root tag.
version(removed in 1.11): Version of the structure (Currently 1)
DataVersion: Version of the NBT structure.
author: Name of the player who created this structure
size: 3 TAG_Int describing the size of the structure
palette: Set of different block state used in the structure.
: Block state
Name: Id of the block
Properties: List of block state properties, with [name] being the name of the block state property
[name]: value of the property
blocks: List of individual block in the structure.
entities: List of entities in the structure
pos: 3 TAG_Double describing the exact position of the entity
blockPos: 3 TAG_Int describing the block position of the entity
nbt: nbt of the entity (required). See entity format.