Package net.minecraft.block.entity

Class PistonBlockEntity

java.lang.Object

net.minecraft.block.entity.BlockEntity

net.minecraft.block.entity.PistonBlockEntity

public class PistonBlockEntity
extends BlockEntity

A piston block entity represents the block being pushed by a piston.

Mappings:

Namespace	Name
intermediary	net/minecraft/class_2669
official	dbu
named	net/minecraft/block/entity/PistonBlockEntity

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	extending
private Direction	facing
private static final ThreadLocal<Direction>	field_12205
private int	field_26705
static final double	field_31381
private static final int	field_31382
private static final double	field_31383
private float	lastProgress
private float	progress
private BlockState	pushedBlock
private long	savedWorldTime
private boolean	source

Fields inherited from class net.minecraft.block.entity.BlockEntity

pos, removed, world

Constructor Summary

Constructors

Constructor	Description
PistonBlockEntity(BlockPos pos, BlockState state)
PistonBlockEntity(BlockPos pos, BlockState state, BlockState pushedBlock, Direction facing, boolean extending, boolean source)

Method Summary

Modifier and Type	Method	Description
private static boolean	canMoveEntity(Box box, Entity entity, BlockPos blockPos)
void	finish()
private float	getAmountExtended(float progress)
VoxelShape	getCollisionShape(BlockView world, BlockPos pos)
Direction	getFacing()
private BlockState	getHeadBlockState()
private static double	getIntersectionSize(Box box, Direction direction, Box box2)
Direction	getMovementDirection()
float	getProgress(float tickDelta)
BlockState	getPushedBlock()
float	getRenderOffsetX(float tickDelta)
float	getRenderOffsetY(float tickDelta)
float	getRenderOffsetZ(float tickDelta)
long	getSavedWorldTime()
boolean	isExtending()
private boolean	isPushingHoneyBlock()
boolean	isSource()
private static void	moveEntitiesInHoneyBlock(World world, BlockPos pos, float float2, PistonBlockEntity blockEntity)
private static void	moveEntity(Direction direction, Entity entity, double double2, Direction movementDirection)
private static Box	offsetHeadBox(BlockPos pos, Box box, PistonBlockEntity blockEntity)
private static void	push(BlockPos pos, Entity entity, Direction direction, double amount)
private static void	pushEntities(World world, BlockPos pos, float float2, PistonBlockEntity blockEntity)
void	readNbt(NbtCompound nbt)	Reads data from nbt.
void	setWorld(World world)	Sets the world the block entity belongs to.
static void	tick(World world, BlockPos pos, BlockState state, PistonBlockEntity blockEntity)
NbtCompound	toInitialChunkDataNbt()	Returns the serialized state of this block entity that is observable by clients.
protected void	writeNbt(NbtCompound nbt)	Writes data to nbt.

Methods inherited from class net.minecraft.block.entity.BlockEntity

cancelRemoval, copyItemDataRequiresOperator, createFromNbt, createNbt, createNbtWithId, createNbtWithIdentifyingData, getCachedState, getPos, getType, getWorld, hasWorld, isRemoved, markDirty, markDirty, markRemoved, onSyncedBlockEvent, populateCrashReport, posFromNbt, setCachedState, setStackNbt, toUpdatePacket, writeIdToNbt

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

field_31382

private static final int field_31382

See Also:

• Constant Field Values

Mappings:

Namespace	Name	Mixin selector
intermediary	field_31382	Lnet/minecraft/class_2669;field_31382:I
official	b	Ldbu;b:I
named	field_31382	Lnet/minecraft/block/entity/PistonBlockEntity;field_31382:I

field_31383

private static final double field_31383

See Also:

• Constant Field Values

Mappings:

Namespace	Name	Mixin selector
intermediary	field_31383	Lnet/minecraft/class_2669;field_31383:D
official	c	Ldbu;c:D
named	field_31383	Lnet/minecraft/block/entity/PistonBlockEntity;field_31383:D

field_31381

public static final double field_31381

See Also:

• Constant Field Values

Mappings:

Namespace	Name	Mixin selector
intermediary	field_31381	Lnet/minecraft/class_2669;field_31381:D
official	a	Ldbu;a:D
named	field_31381	Lnet/minecraft/block/entity/PistonBlockEntity;field_31381:D

field_12205

private static final ThreadLocal<Direction> field_12205

Mappings:

Namespace	Name	Mixin selector
intermediary	field_12205	Lnet/minecraft/class_2669;field_12205:Ljava/lang/ThreadLocal;
official	h	Ldbu;h:Ljava/lang/ThreadLocal;
named	field_12205	Lnet/minecraft/block/entity/PistonBlockEntity;field_12205:Ljava/lang/ThreadLocal;

pushedBlock

private BlockState pushedBlock

Mappings:

Namespace	Name	Mixin selector
intermediary	field_12204	Lnet/minecraft/class_2669;field_12204:Lnet/minecraft/class_2680;
official	d	Ldbu;d:Ldby;
named	pushedBlock	Lnet/minecraft/block/entity/PistonBlockEntity;pushedBlock:Lnet/minecraft/block/BlockState;

facing

private Direction facing

Mappings:

Namespace	Name	Mixin selector
intermediary	field_12201	Lnet/minecraft/class_2669;field_12201:Lnet/minecraft/class_2350;
official	e	Ldbu;e:Lha;
named	facing	Lnet/minecraft/block/entity/PistonBlockEntity;facing:Lnet/minecraft/util/math/Direction;

extending

private boolean extending

Mappings:

Namespace	Name	Mixin selector
intermediary	field_12203	Lnet/minecraft/class_2669;field_12203:Z
official	f	Ldbu;f:Z
named	extending	Lnet/minecraft/block/entity/PistonBlockEntity;extending:Z

source

private boolean source

Mappings:

Namespace	Name	Mixin selector
intermediary	field_12202	Lnet/minecraft/class_2669;field_12202:Z
official	g	Ldbu;g:Z
named	source	Lnet/minecraft/block/entity/PistonBlockEntity;source:Z

progress

private float progress

Mappings:

Namespace	Name	Mixin selector
intermediary	field_12207	Lnet/minecraft/class_2669;field_12207:F
official	i	Ldbu;i:F
named	progress	Lnet/minecraft/block/entity/PistonBlockEntity;progress:F

lastProgress

private float lastProgress

Mappings:

Namespace	Name	Mixin selector
intermediary	field_12206	Lnet/minecraft/class_2669;field_12206:F
official	j	Ldbu;j:F
named	lastProgress	Lnet/minecraft/block/entity/PistonBlockEntity;lastProgress:F

savedWorldTime

private long savedWorldTime

Mappings:

Namespace	Name	Mixin selector
intermediary	field_12208	Lnet/minecraft/class_2669;field_12208:J
official	k	Ldbu;k:J
named	savedWorldTime	Lnet/minecraft/block/entity/PistonBlockEntity;savedWorldTime:J

field_26705

private int field_26705

Mappings:

Namespace	Name	Mixin selector
intermediary	field_26705	Lnet/minecraft/class_2669;field_26705:I
official	l	Ldbu;l:I
named	field_26705	Lnet/minecraft/block/entity/PistonBlockEntity;field_26705:I

Constructor Details

PistonBlockEntity

public PistonBlockEntity(BlockPos pos,
 BlockState state)

Mappings:

Namespace	Name	Mixin selector
intermediary	<init>	Lnet/minecraft/class_2669;<init>(Lnet/minecraft/class_2338;Lnet/minecraft/class_2680;)V
official	<init>	Ldbu;<init>(Lgu;Ldby;)V
named	<init>	Lnet/minecraft/block/entity/PistonBlockEntity;<init>(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;)V

PistonBlockEntity

public PistonBlockEntity(BlockPos pos,
 BlockState state,
 BlockState pushedBlock,
 Direction facing,
 boolean extending,
 boolean source)

Mappings:

Namespace	Name	Mixin selector
intermediary	<init>	Lnet/minecraft/class_2669;<init>(Lnet/minecraft/class_2338;Lnet/minecraft/class_2680;Lnet/minecraft/class_2680;Lnet/minecraft/class_2350;ZZ)V
official	<init>	Ldbu;<init>(Lgu;Ldby;Ldby;Lha;ZZ)V
named	<init>	Lnet/minecraft/block/entity/PistonBlockEntity;<init>(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;Lnet/minecraft/block/BlockState;Lnet/minecraft/util/math/Direction;ZZ)V

Method Details

toInitialChunkDataNbt

public NbtCompound toInitialChunkDataNbt()

Returns the serialized state of this block entity that is observable by clients.

This is sent alongside the initial chunk data, as well as when the block entity implements BlockEntity.toUpdatePacket() and decides to use the default BlockEntityUpdateS2CPacket.

"Observable state" is a state that clients can observe without specific interaction. For example, CampfireBlockEntity's cooked items are observable states, but chests' inventories are not observable states, since the player must first open that chest before they can see the contents.

To send all NBT data of this block entity saved to disk, return BlockEntity.createNbt().

Overrides:

toInitialChunkDataNbt in class BlockEntity

Returns:

the serialized state of this block entity that is observable by clients

See Also:

• BlockEntity.toUpdatePacket()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_16887	Lnet/minecraft/class_2586;method_16887()Lnet/minecraft/class_2487;
official	ao_	Lczk;ao_()Lqr;
named	toInitialChunkDataNbt	Lnet/minecraft/block/entity/BlockEntity;toInitialChunkDataNbt()Lnet/minecraft/nbt/NbtCompound;

isExtending

public boolean isExtending()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11501	Lnet/minecraft/class_2669;method_11501()Z
official	c	Ldbu;c()Z
named	isExtending	Lnet/minecraft/block/entity/PistonBlockEntity;isExtending()Z

getFacing

public Direction getFacing()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11498	Lnet/minecraft/class_2669;method_11498()Lnet/minecraft/class_2350;
official	d	Ldbu;d()Lha;
named	getFacing	Lnet/minecraft/block/entity/PistonBlockEntity;getFacing()Lnet/minecraft/util/math/Direction;

isSource

public boolean isSource()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11515	Lnet/minecraft/class_2669;method_11515()Z
official	f	Ldbu;f()Z
named	isSource	Lnet/minecraft/block/entity/PistonBlockEntity;isSource()Z

getProgress

public float getProgress(float tickDelta)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11499	Lnet/minecraft/class_2669;method_11499(F)F
official	a	Ldbu;a(F)F
named	getProgress	Lnet/minecraft/block/entity/PistonBlockEntity;getProgress(F)F

getRenderOffsetX

public float getRenderOffsetX(float tickDelta)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11494	Lnet/minecraft/class_2669;method_11494(F)F
official	b	Ldbu;b(F)F
named	getRenderOffsetX	Lnet/minecraft/block/entity/PistonBlockEntity;getRenderOffsetX(F)F

getRenderOffsetY

public float getRenderOffsetY(float tickDelta)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11511	Lnet/minecraft/class_2669;method_11511(F)F
official	c	Ldbu;c(F)F
named	getRenderOffsetY	Lnet/minecraft/block/entity/PistonBlockEntity;getRenderOffsetY(F)F

getRenderOffsetZ

public float getRenderOffsetZ(float tickDelta)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11507	Lnet/minecraft/class_2669;method_11507(F)F
official	d	Ldbu;d(F)F
named	getRenderOffsetZ	Lnet/minecraft/block/entity/PistonBlockEntity;getRenderOffsetZ(F)F

getAmountExtended

private float getAmountExtended(float progress)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11504	Lnet/minecraft/class_2669;method_11504(F)F
official	e	Ldbu;e(F)F
named	getAmountExtended	Lnet/minecraft/block/entity/PistonBlockEntity;getAmountExtended(F)F

getHeadBlockState

private BlockState getHeadBlockState()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11496	Lnet/minecraft/class_2669;method_11496()Lnet/minecraft/class_2680;
official	w	Ldbu;w()Ldby;
named	getHeadBlockState	Lnet/minecraft/block/entity/PistonBlockEntity;getHeadBlockState()Lnet/minecraft/block/BlockState;

pushEntities

private static void pushEntities(World world,
 BlockPos pos,
 float float2,
 PistonBlockEntity blockEntity)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11503	Lnet/minecraft/class_2669;method_11503(Lnet/minecraft/class_1937;Lnet/minecraft/class_2338;FLnet/minecraft/class_2669;)V
official	a	Ldbu;a(Lcmk;Lgu;FLdbu;)V
named	pushEntities	Lnet/minecraft/block/entity/PistonBlockEntity;pushEntities(Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;FLnet/minecraft/block/entity/PistonBlockEntity;)V

moveEntity

private static void moveEntity(Direction direction,
 Entity entity,
 double double2,
 Direction movementDirection)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_23672	Lnet/minecraft/class_2669;method_23672(Lnet/minecraft/class_2350;Lnet/minecraft/class_1297;DLnet/minecraft/class_2350;)V
official	a	Ldbu;a(Lha;Lbfh;DLha;)V
named	moveEntity	Lnet/minecraft/block/entity/PistonBlockEntity;moveEntity(Lnet/minecraft/util/math/Direction;Lnet/minecraft/entity/Entity;DLnet/minecraft/util/math/Direction;)V

moveEntitiesInHoneyBlock

private static void moveEntitiesInHoneyBlock(World world,
 BlockPos pos,
 float float2,
 PistonBlockEntity blockEntity)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_23674	Lnet/minecraft/class_2669;method_23674(Lnet/minecraft/class_1937;Lnet/minecraft/class_2338;FLnet/minecraft/class_2669;)V
official	b	Ldbu;b(Lcmk;Lgu;FLdbu;)V
named	moveEntitiesInHoneyBlock	Lnet/minecraft/block/entity/PistonBlockEntity;moveEntitiesInHoneyBlock(Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;FLnet/minecraft/block/entity/PistonBlockEntity;)V

canMoveEntity

private static boolean canMoveEntity(Box box,
 Entity entity,
 BlockPos blockPos)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_23671	Lnet/minecraft/class_2669;method_23671(Lnet/minecraft/class_238;Lnet/minecraft/class_1297;Lnet/minecraft/class_2338;)Z
official	a	Ldbu;a(Ledv;Lbfh;Lgu;)Z
named	canMoveEntity	Lnet/minecraft/block/entity/PistonBlockEntity;canMoveEntity(Lnet/minecraft/util/math/Box;Lnet/minecraft/entity/Entity;Lnet/minecraft/util/math/BlockPos;)Z

isPushingHoneyBlock

private boolean isPushingHoneyBlock()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_23364	Lnet/minecraft/class_2669;method_23364()Z
official	x	Ldbu;x()Z
named	isPushingHoneyBlock	Lnet/minecraft/block/entity/PistonBlockEntity;isPushingHoneyBlock()Z

getMovementDirection

public Direction getMovementDirection()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11506	Lnet/minecraft/class_2669;method_11506()Lnet/minecraft/class_2350;
official	g	Ldbu;g()Lha;
named	getMovementDirection	Lnet/minecraft/block/entity/PistonBlockEntity;getMovementDirection()Lnet/minecraft/util/math/Direction;

getIntersectionSize

private static double getIntersectionSize(Box box,
 Direction direction,
 Box box2)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11497	Lnet/minecraft/class_2669;method_11497(Lnet/minecraft/class_238;Lnet/minecraft/class_2350;Lnet/minecraft/class_238;)D
official	a	Ldbu;a(Ledv;Lha;Ledv;)D
named	getIntersectionSize	Lnet/minecraft/block/entity/PistonBlockEntity;getIntersectionSize(Lnet/minecraft/util/math/Box;Lnet/minecraft/util/math/Direction;Lnet/minecraft/util/math/Box;)D

offsetHeadBox

private static Box offsetHeadBox(BlockPos pos,
 Box box,
 PistonBlockEntity blockEntity)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11500	Lnet/minecraft/class_2669;method_11500(Lnet/minecraft/class_2338;Lnet/minecraft/class_238;Lnet/minecraft/class_2669;)Lnet/minecraft/class_238;
official	a	Ldbu;a(Lgu;Ledv;Ldbu;)Ledv;
named	offsetHeadBox	Lnet/minecraft/block/entity/PistonBlockEntity;offsetHeadBox(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/math/Box;Lnet/minecraft/block/entity/PistonBlockEntity;)Lnet/minecraft/util/math/Box;

push

private static void push(BlockPos pos,
 Entity entity,
 Direction direction,
 double amount)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11514	Lnet/minecraft/class_2669;method_11514(Lnet/minecraft/class_2338;Lnet/minecraft/class_1297;Lnet/minecraft/class_2350;D)V
official	a	Ldbu;a(Lgu;Lbfh;Lha;D)V
named	push	Lnet/minecraft/block/entity/PistonBlockEntity;push(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/entity/Entity;Lnet/minecraft/util/math/Direction;D)V

getPushedBlock

public BlockState getPushedBlock()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11495	Lnet/minecraft/class_2669;method_11495()Lnet/minecraft/class_2680;
official	i	Ldbu;i()Ldby;
named	getPushedBlock	Lnet/minecraft/block/entity/PistonBlockEntity;getPushedBlock()Lnet/minecraft/block/BlockState;

finish

public void finish()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11513	Lnet/minecraft/class_2669;method_11513()V
official	j	Ldbu;j()V
named	finish	Lnet/minecraft/block/entity/PistonBlockEntity;finish()V

tick

public static void tick(World world,
 BlockPos pos,
 BlockState state,
 PistonBlockEntity blockEntity)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_31707	Lnet/minecraft/class_2669;method_31707(Lnet/minecraft/class_1937;Lnet/minecraft/class_2338;Lnet/minecraft/class_2680;Lnet/minecraft/class_2669;)V
official	a	Ldbu;a(Lcmk;Lgu;Ldby;Ldbu;)V
named	tick	Lnet/minecraft/block/entity/PistonBlockEntity;tick(Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;Lnet/minecraft/block/entity/PistonBlockEntity;)V

readNbt

public void readNbt(NbtCompound nbt)

Reads data from nbt. Subclasses should override this if they store a persistent data.

NBT is a storage format; therefore, a data from NBT is loaded to a block entity instance's fields, which are used for other operations instead of the NBT. The data is written back to NBT when saving the block entity.

nbt might not have all expected keys, or might have a key whose value does not meet the requirement (such as the type or the range). This method should fall back to a reasonable default value instead of throwing an exception.

Overrides:

readNbt in class BlockEntity

See Also:

• BlockEntity.writeNbt(net.minecraft.nbt.NbtCompound)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11014	Lnet/minecraft/class_2586;method_11014(Lnet/minecraft/class_2487;)V
official	a	Lczk;a(Lqr;)V
named	readNbt	Lnet/minecraft/block/entity/BlockEntity;readNbt(Lnet/minecraft/nbt/NbtCompound;)V

writeNbt

protected void writeNbt(NbtCompound nbt)

Writes data to nbt. Subclasses should override this if they store a persistent data.

NBT is a storage format; therefore, a data from NBT is loaded to a block entity instance's fields, which are used for other operations instead of the NBT. The data is written back to NBT when saving the block entity.

Overrides:

writeNbt in class BlockEntity

See Also:

• BlockEntity.readNbt(net.minecraft.nbt.NbtCompound)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11007	Lnet/minecraft/class_2586;method_11007(Lnet/minecraft/class_2487;)V
official	b	Lczk;b(Lqr;)V
named	writeNbt	Lnet/minecraft/block/entity/BlockEntity;writeNbt(Lnet/minecraft/nbt/NbtCompound;)V

getCollisionShape

public VoxelShape getCollisionShape(BlockView world,
 BlockPos pos)

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11512	Lnet/minecraft/class_2669;method_11512(Lnet/minecraft/class_1922;Lnet/minecraft/class_2338;)Lnet/minecraft/class_265;
official	a	Ldbu;a(Lclq;Lgu;)Leet;
named	getCollisionShape	Lnet/minecraft/block/entity/PistonBlockEntity;getCollisionShape(Lnet/minecraft/world/BlockView;Lnet/minecraft/util/math/BlockPos;)Lnet/minecraft/util/shape/VoxelShape;

getSavedWorldTime

public long getSavedWorldTime()

Mappings:

Namespace	Name	Mixin selector
intermediary	method_11508	Lnet/minecraft/class_2669;method_11508()J
official	v	Ldbu;v()J
named	getSavedWorldTime	Lnet/minecraft/block/entity/PistonBlockEntity;getSavedWorldTime()J

setWorld

public void setWorld(World world)

Sets the world the block entity belongs to.

This should not be called manually; however, this can be overridden to initialize fields dependent on the world.

Overrides:

setWorld in class BlockEntity

Mappings:

Namespace	Name	Mixin selector
intermediary	method_31662	Lnet/minecraft/class_2586;method_31662(Lnet/minecraft/class_1937;)V
official	a	Lczk;a(Lcmk;)V
named	setWorld	Lnet/minecraft/block/entity/BlockEntity;setWorld(Lnet/minecraft/world/World;)V