Block entity

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A block entity is extra data associated with a block, beyond the finite set of block states associated with each block.

Usage[edit | edit source]

Block entities store additional information about certain blocks, with the type of information varying by block. In some cases, this information is used to create a more complex model, such as the book on an enchantment table. In other cases, it is used to store contents of an object. Blocks with block entities can be moved by pistons.[Bedrock Edition only]

List of block entities[edit | edit source]

These are the current blocks that hold block entities.

Block Entity Usage
To store bees.
To store the text.
To store the patterns.
To store their contents.
  • Furnaces, blast furnaces and smokers also store the time until the current item is smelted, and the time until the furnace's current fuel item is exhausted.
  • Brewing stands also store the brewing time.
  • Hoppers also store the time until the next transfer of an item.
  • Chests, trapped chests and shulker boxes also use the block's position and rotation for the opening and closing animation.
  • Lecterns also store the page the book is currently on.
To store the pyramid level, active effects, and contents. Also uses the block's position for the beacon beam.
To store:
  • which entity will be spawned.
  • the delay until the next entity is spawned, and the min and max values for the next spawn delay.
  • how many entities to spawn per spawn attempt.
  • additional data about the entity to be spawned (such as position, effects, and entities stacked on top of it).
  • Also uses the block's position to display the spinning mob inside.
To store which note will be played.
To store the offset of block, direction of movement, and ID (and data value, if applicable) of the moving block. (A moving block can't be stored as a block because it's not aligned to a grid cell.)
To play music discs, if any are inside.
For the floating book.
For the particle field effect.
  • &format=original
    Mob Head
For the type of the head[Bedrock Edition only], rotation when placed on top of a block[Bedrock Edition only], and (if applicable) data of the player represented.
  • &format=original
    Command Block
For the command text, its output strength, and the output text.
  • &format=original
For the teleport location and also whether to render the beam.
  • &format=original
    Structure Block
To store information about the structure.
To store the structure pool and the block this jigsaw block will turn into.
To store whether the reaction started and the time remaining in the reaction.
To force the daylight sensor to update its output signal strength.
To store the ID and the data value of the block displayed inside of it.
To store its output strength.
To store color [Bedrock Edition only] and for rendering the block.
To store details about liquid content. Cauldrons containing dyed water store water color. Cauldrons containing potions store the potion's ID and a tag of whether it is a splash potion or not.
To check its activation area for valid activation blocks and calculate its effective range. Also used for rendering the block in its active and inactive states.
For the render of the swaying animation of the bell.

See also[edit | edit source]

  • Chunk format#Block entity format – describes the save format for block entities
  • Entities, which are all the dynamic, moving objects throughout the Minecraft world, plus several non-moving objects that resemble blocks.
  • Block states, which are, like block entities, extra pieces of data that further define a block.

Template:Java Edition Template:Bedrock Edition

de:Blockobjektdaten es:Entidad de bloque fr:Entités de blocs hu:Blokkentitás ja:ブロックエンティティ ko:블록 엔티티 nl:Segment formaat pl:Byty bloków ru:Блок-сущность zh:方块实体