Package net.minecraft.block

Class HangingSignBlock

java.lang.Object

net.minecraft.block.AbstractBlock

net.minecraft.block.Block

net.minecraft.block.BlockWithEntity

net.minecraft.block.AbstractSignBlock

net.minecraft.block.HangingSignBlock

All Implemented Interfaces:

BlockEntityProvider, FluidDrainable, FluidFillable, Waterloggable, ItemConvertible, ToggleableFeature

public class HangingSignBlock
extends AbstractSignBlock

Mappings:

Namespace	Name
named	net/minecraft/block/HangingSignBlock
intermediary	net/minecraft/class_7713
official	dll

Nested Class Summary

Nested classes/interfaces inherited from class net.minecraft.block.AbstractBlock

AbstractBlock.AbstractBlockState, AbstractBlock.ContextPredicate, AbstractBlock.Offsetter, AbstractBlock.OffsetType, AbstractBlock.Settings, AbstractBlock.TypedContextPredicate<A>

Field Summary

Fields

Modifier and Type	Field	Description
static final BooleanProperty	ATTACHED
static final com.mojang.serialization.MapCodec<HangingSignBlock>	CODEC
protected static final VoxelShape	DEFAULT_SHAPE
protected static final float	field_40302
static final IntProperty	ROTATION
private static final Map<Integer,VoxelShape>	SHAPES_FOR_ROTATION

Fields inherited from class net.minecraft.block.AbstractSignBlock

field_31243, SHAPE, WATERLOGGED

Fields inherited from class net.minecraft.block.Block

field_31023, field_31024, field_31025, field_31035, FORCE_STATE, MOVED, NO_REDRAW, NOTIFY_ALL, NOTIFY_ALL_AND_REDRAW, NOTIFY_LISTENERS, NOTIFY_NEIGHBORS, REDRAW_ON_MAIN_THREAD, SKIP_DROPS, SKIP_REDSTONE_WIRE_STATE_REPLACEMENT, STATE_IDS, stateManager

Fields inherited from class net.minecraft.block.AbstractBlock

collidable, DIRECTIONS, dynamicBounds, jumpVelocityMultiplier, lootTableKey, randomTicks, requiredFeatures, resistance, settings, slipperiness, soundGroup, translationKey, velocityMultiplier

Fields inherited from interface net.minecraft.resource.featuretoggle.ToggleableFeature

FEATURE_ENABLED_REGISTRY_KEYS

Constructor Summary

Constructors

Constructor	Description
HangingSignBlock(WoodType type, AbstractBlock.Settings settings)

Method Summary

Modifier and Type	Method	Description
protected void	appendProperties(StateManager.Builder<Block,BlockState> builder)	Appends block state properties to this block.
protected boolean	canPlaceAt(BlockState state, WorldView world, BlockPos pos)	Returns whether the block can be placed at pos.
BlockEntity	createBlockEntity(BlockPos pos, BlockState state)	Returns a new block entity instance.
com.mojang.serialization.MapCodec<HangingSignBlock>	getCodec()
protected VoxelShape	getOutlineShape(BlockState state, BlockView world, BlockPos pos, ShapeContext context)
BlockState	getPlacementState(ItemPlacementContext ctx)
float	getRotationDegrees(BlockState state)
protected VoxelShape	getSidesShape(BlockState state, BlockView world, BlockPos pos)
protected BlockState	getStateForNeighborUpdate(BlockState state, WorldView world, ScheduledTickView tickView, BlockPos pos, Direction direction, BlockPos neighborPos, BlockState neighborState, Random random)	Returns the state of the block after a neighboring block's state change.
<T extends BlockEntity> @Nullable BlockEntityTicker<T>	getTicker(World world, BlockState state, BlockEntityType<T> type)	Returns the "ticker" for the block's block entity, or null if the block entity does not need to be ticked.
protected BlockState	mirror(BlockState state, BlockMirror mirror)	Returns state mirrored by mirror.
protected ActionResult	onUseWithItem(ItemStack stack, BlockState state, World world, BlockPos pos, PlayerEntity player, Hand hand, BlockHitResult hit)
protected BlockState	rotate(BlockState state, BlockRotation rotation)	Returns state rotated by rotation.
private boolean	shouldTryAttaching(PlayerEntity player, BlockHitResult hitResult, SignBlockEntity sign, ItemStack stack)

Methods inherited from class net.minecraft.block.AbstractSignBlock

canMobSpawnInside, getCenter, getFluidState, getWoodType, getWoodType, onUse, openEditScreen

Methods inherited from class net.minecraft.block.BlockWithEntity

createScreenHandlerFactory, getRenderType, onSyncedBlockEvent, validateTicker

Methods inherited from class net.minecraft.block.Block

afterBreak, appendTooltip, asBlock, asItem, cannotConnect, createCuboidShape, dropExperience, dropExperienceWhenMined, dropStack, dropStack, dropStacks, dropStacks, dropStacks, getBlastResistance, getBlockFromItem, getDefaultState, getDroppedStacks, getDroppedStacks, getJumpVelocityMultiplier, getName, getPickStack, getRawIdFromState, getRegistryEntry, getShapesForStates, getSlipperiness, getStateFromRawId, getStateManager, getStateWithProperties, getVelocityMultiplier, hasDynamicBounds, hasTopRim, isFaceFullSquare, isShapeFullCube, onBreak, onBroken, onDestroyedByExplosion, onEntityLand, onLandedUpon, onPlaced, onSteppedOn, postProcessState, precipitationTick, pushEntitiesUpBeforeBlockChange, randomDisplayTick, replace, replace, setDefaultState, shouldDrawSide, shouldDropItemsOnExplosion, sideCoversSmallSquare, spawnBreakParticles, toString

Methods inherited from class net.minecraft.block.AbstractBlock

calcBlockBreakingDelta, canBucketPlace, canPathfindThrough, canReplace, createCodec, createSettingsCodec, emitsRedstonePower, getAmbientOcclusionLightLevel, getCameraCollisionShape, getCollisionShape, getComparatorOutput, getCullingShape, getDefaultMapColor, getDroppedStacks, getHardness, getInsideCollisionShape, getLootTableKey, getMaxHorizontalModelOffset, getOpacity, getRaycastShape, getRenderingSeed, getRequiredFeatures, getSettings, getSoundGroup, getStrongRedstonePower, getTranslationKey, getVerticalModelOffsetMultiplier, getWeakRedstonePower, hasComparatorOutput, hasRandomTicks, hasSidedTransparency, isShapeFullCube, isSideInvisible, isTransparent, neighborUpdate, onBlockAdded, onBlockBreakStart, onEntityCollision, onExploded, onProjectileHit, onStacksDropped, onStateReplaced, prepare, randomTick, scheduledTick

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.minecraft.block.BlockEntityProvider

getGameEventListener

Methods inherited from interface net.minecraft.resource.featuretoggle.ToggleableFeature

isEnabled

Methods inherited from interface net.minecraft.block.Waterloggable

canFillWithFluid, getBucketFillSound, tryDrainFluid, tryFillWithFluid

Field Details

CODEC

public static final com.mojang.serialization.MapCodec<HangingSignBlock> CODEC

Mappings:

Namespace	Name	Mixin selector
named	CODEC	Lnet/minecraft/block/HangingSignBlock;CODEC:Lcom/mojang/serialization/MapCodec;
intermediary	field_46308	Lnet/minecraft/class_7713;field_46308:Lcom/mojang/serialization/MapCodec;
official	a	Ldll;a:Lcom/mojang/serialization/MapCodec;

ROTATION

public static final IntProperty ROTATION

Mappings:

Namespace	Name	Mixin selector
named	ROTATION	Lnet/minecraft/block/HangingSignBlock;ROTATION:Lnet/minecraft/state/property/IntProperty;
intermediary	field_40300	Lnet/minecraft/class_7713;field_40300:Lnet/minecraft/class_2758;
official	b	Ldll;b:Ldyt;

ATTACHED

public static final BooleanProperty ATTACHED

Mappings:

Namespace	Name	Mixin selector
named	ATTACHED	Lnet/minecraft/block/HangingSignBlock;ATTACHED:Lnet/minecraft/state/property/BooleanProperty;
intermediary	field_40301	Lnet/minecraft/class_7713;field_40301:Lnet/minecraft/class_2746;
official	c	Ldll;c:Ldyl;

field_40302

protected static final float field_40302

See Also:

• Constant Field Values

Mappings:

Namespace	Name	Mixin selector
named	field_40302	Lnet/minecraft/block/HangingSignBlock;field_40302:F
intermediary	field_40302	Lnet/minecraft/class_7713;field_40302:F
official	d	Ldll;d:F

DEFAULT_SHAPE

protected static final VoxelShape DEFAULT_SHAPE

Mappings:

Namespace	Name	Mixin selector
named	DEFAULT_SHAPE	Lnet/minecraft/block/HangingSignBlock;DEFAULT_SHAPE:Lnet/minecraft/util/shape/VoxelShape;
intermediary	field_40303	Lnet/minecraft/class_7713;field_40303:Lnet/minecraft/class_265;
official	e	Ldll;e:Lfcr;

SHAPES_FOR_ROTATION

private static final Map<Integer,VoxelShape> SHAPES_FOR_ROTATION

Mappings:

Namespace	Name	Mixin selector
named	SHAPES_FOR_ROTATION	Lnet/minecraft/block/HangingSignBlock;SHAPES_FOR_ROTATION:Ljava/util/Map;
intermediary	field_40304	Lnet/minecraft/class_7713;field_40304:Ljava/util/Map;
official	i	Ldll;i:Ljava/util/Map;

Constructor Details

HangingSignBlock

public HangingSignBlock(WoodType type,
 AbstractBlock.Settings settings)

Mappings:

Namespace	Name	Mixin selector
named	<init>	Lnet/minecraft/block/AbstractSignBlock;<init>(Lnet/minecraft/block/WoodType;Lnet/minecraft/block/AbstractBlock$Settings;)V
intermediary	<init>	Lnet/minecraft/class_2478;<init>(Lnet/minecraft/class_4719;Lnet/minecraft/class_4970$class_2251;)V
official	<init>	Ldro;<init>(Ldzg;Ldxt$d;)V

Method Details

getCodec

public com.mojang.serialization.MapCodec<HangingSignBlock> getCodec()

Specified by:

getCodec in class AbstractSignBlock

Mappings:

Namespace	Name	Mixin selector
named	getCodec	Lnet/minecraft/block/AbstractBlock;getCodec()Lcom/mojang/serialization/MapCodec;
intermediary	method_53969	Lnet/minecraft/class_4970;method_53969()Lcom/mojang/serialization/MapCodec;
official	a	Ldxt;a()Lcom/mojang/serialization/MapCodec;

onUseWithItem

protected ActionResult onUseWithItem(ItemStack stack,
 BlockState state,
 World world,
 BlockPos pos,
 PlayerEntity player,
 Hand hand,
 BlockHitResult hit)

Overrides:

onUseWithItem in class AbstractSignBlock

Mappings:

Namespace	Name	Mixin selector
named	onUseWithItem	Lnet/minecraft/block/AbstractBlock;onUseWithItem(Lnet/minecraft/item/ItemStack;Lnet/minecraft/block/BlockState;Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/entity/player/PlayerEntity;Lnet/minecraft/util/Hand;Lnet/minecraft/util/hit/BlockHitResult;)Lnet/minecraft/util/ActionResult;
intermediary	method_55765	Lnet/minecraft/class_4970;method_55765(Lnet/minecraft/class_1799;Lnet/minecraft/class_2680;Lnet/minecraft/class_1937;Lnet/minecraft/class_2338;Lnet/minecraft/class_1657;Lnet/minecraft/class_1268;Lnet/minecraft/class_3965;)Lnet/minecraft/class_1269;
official	a	Ldxt;a(Lcxo;Ldxu;Ldhh;Ljh;Lcpw;Lbth;Lfbt;)Lbti;

shouldTryAttaching

private boolean shouldTryAttaching(PlayerEntity player,
 BlockHitResult hitResult,
 SignBlockEntity sign,
 ItemStack stack)

Mappings:

Namespace	Name	Mixin selector
named	shouldTryAttaching	Lnet/minecraft/block/HangingSignBlock;shouldTryAttaching(Lnet/minecraft/entity/player/PlayerEntity;Lnet/minecraft/util/hit/BlockHitResult;Lnet/minecraft/block/entity/SignBlockEntity;Lnet/minecraft/item/ItemStack;)Z
intermediary	method_50002	Lnet/minecraft/class_7713;method_50002(Lnet/minecraft/class_1657;Lnet/minecraft/class_3965;Lnet/minecraft/class_2625;Lnet/minecraft/class_1799;)Z
official	a	Ldll;a(Lcpw;Lfbt;Ldwj;Lcxo;)Z

canPlaceAt

protected boolean canPlaceAt(BlockState state,
 WorldView world,
 BlockPos pos)

Returns whether the block can be placed at pos.

Blocks with supporting block requirements should override this method. Note that this should also be checked manually during getStateForNeighborUpdate(net.minecraft.block.BlockState, net.minecraft.world.WorldView, net.minecraft.world.tick.ScheduledTickView, net.minecraft.util.math.BlockPos, net.minecraft.util.math.Direction, net.minecraft.util.math.BlockPos, net.minecraft.block.BlockState, net.minecraft.util.math.random.Random) in order to break the block that lost its supporting block.

This is only checked during the use of block items or by endermen, falling blocks, etc that can place blocks. This does not affect block state changes performed through World.setBlockState(BlockPos, BlockState) call.

This method is called on both the logical client and logical server, so take caution when overriding this method. The logical side can be checked using World.isClient.

Overrides:

canPlaceAt in class AbstractBlock

Returns:

whether the block can be placed at pos

See Also:

• AbstractBlock.AbstractBlockState.canPlaceAt(net.minecraft.world.WorldView, net.minecraft.util.math.BlockPos)
• getStateForNeighborUpdate(net.minecraft.block.BlockState, net.minecraft.world.WorldView, net.minecraft.world.tick.ScheduledTickView, net.minecraft.util.math.BlockPos, net.minecraft.util.math.Direction, net.minecraft.util.math.BlockPos, net.minecraft.block.BlockState, net.minecraft.util.math.random.Random)

Mappings:

Namespace	Name	Mixin selector
named	canPlaceAt	Lnet/minecraft/block/AbstractBlock;canPlaceAt(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/WorldView;Lnet/minecraft/util/math/BlockPos;)Z
intermediary	method_9558	Lnet/minecraft/class_4970;method_9558(Lnet/minecraft/class_2680;Lnet/minecraft/class_4538;Lnet/minecraft/class_2338;)Z
official	a	Ldxt;a(Ldxu;Ldhk;Ljh;)Z

getPlacementState

public BlockState getPlacementState(ItemPlacementContext ctx)

Overrides:

getPlacementState in class Block

Mappings:

Namespace	Name	Mixin selector
named	getPlacementState	Lnet/minecraft/block/Block;getPlacementState(Lnet/minecraft/item/ItemPlacementContext;)Lnet/minecraft/block/BlockState;
intermediary	method_9605	Lnet/minecraft/class_2248;method_9605(Lnet/minecraft/class_1750;)Lnet/minecraft/class_2680;
official	a	Ldkl;a(Ldbf;)Ldxu;

getOutlineShape

protected VoxelShape getOutlineShape(BlockState state,
 BlockView world,
 BlockPos pos,
 ShapeContext context)

Overrides:

getOutlineShape in class AbstractSignBlock

See Also:

• AbstractBlock.AbstractBlockState.getOutlineShape(BlockView, BlockPos, ShapeContext)

Mappings:

Namespace	Name	Mixin selector
named	getOutlineShape	Lnet/minecraft/block/AbstractBlock;getOutlineShape(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/BlockView;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/ShapeContext;)Lnet/minecraft/util/shape/VoxelShape;
intermediary	method_9530	Lnet/minecraft/class_4970;method_9530(Lnet/minecraft/class_2680;Lnet/minecraft/class_1922;Lnet/minecraft/class_2338;Lnet/minecraft/class_3726;)Lnet/minecraft/class_265;
official	a	Ldxt;a(Ldxu;Ldgm;Ljh;Lfcc;)Lfcr;

getSidesShape

protected VoxelShape getSidesShape(BlockState state,
 BlockView world,
 BlockPos pos)

Overrides:

getSidesShape in class AbstractBlock

See Also:

• AbstractBlock.AbstractBlockState.getSidesShape(net.minecraft.world.BlockView, net.minecraft.util.math.BlockPos)

Mappings:

Namespace	Name	Mixin selector
named	getSidesShape	Lnet/minecraft/block/AbstractBlock;getSidesShape(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/BlockView;Lnet/minecraft/util/math/BlockPos;)Lnet/minecraft/util/shape/VoxelShape;
intermediary	method_25959	Lnet/minecraft/class_4970;method_25959(Lnet/minecraft/class_2680;Lnet/minecraft/class_1922;Lnet/minecraft/class_2338;)Lnet/minecraft/class_265;
official	b_	Ldxt;b_(Ldxu;Ldgm;Ljh;)Lfcr;

getStateForNeighborUpdate

protected BlockState getStateForNeighborUpdate(BlockState state,
 WorldView world,
 ScheduledTickView tickView,
 BlockPos pos,
 Direction direction,
 BlockPos neighborPos,
 BlockState neighborState,
 Random random)

Returns the state of the block after a neighboring block's state change.

Returning Blocks.AIR breaks the block. This is useful to implement supporting block requirement for blocks (if used along with canPlaceAt(net.minecraft.block.BlockState, net.minecraft.world.WorldView, net.minecraft.util.math.BlockPos)).

Side effects like activating a redstone component (but not scheduling a tick) should be performed in AbstractBlock.neighborUpdate(net.minecraft.block.BlockState, net.minecraft.world.World, net.minecraft.util.math.BlockPos, net.minecraft.block.Block, net.minecraft.world.block.WireOrientation, boolean) instead. If the block supports waterlogging and currently has water, this method should be overridden to tick the fluid at the block's position.

This method is called on both the logical client and logical server, so take caution when overriding this method. The logical side can be checked using World.isClient. This is not called if Block.FORCE_STATE flag is set in the setBlockState call.

This method can be used for multiple purposes. Here are some examples:

• FenceBlock uses it to update the fence's connection when a horizontally neighboring block's state is changed.
• PlantBlock uses it to break the plant if the state change causes it to lose its supporting block.
• DoorBlock uses it to copy the state of the other half of the door.
• SlabBlock uses it to schedule the fluid to tick if waterlogged.
• SoulSandBlock uses it to schedule the water block above to tick so that it becomes a bubble column.
• FallingBlock uses it to schedule the block to tick so that it can fall if needed.

Overrides:

getStateForNeighborUpdate in class AbstractSignBlock

Parameters:

state - the state of this block

world - the world

pos - the position of this block

direction - the direction from this block to the neighbor

neighborPos - the position of the neighbor block

neighborState - the state of the updated neighbor block

Returns:

the state of the block after a neighboring block's state change

See Also:

• AbstractBlock.AbstractBlockState.getStateForNeighborUpdate(net.minecraft.world.WorldView, net.minecraft.world.tick.ScheduledTickView, net.minecraft.util.math.BlockPos, net.minecraft.util.math.Direction, net.minecraft.util.math.BlockPos, net.minecraft.block.BlockState, net.minecraft.util.math.random.Random)
• AbstractBlock.neighborUpdate(net.minecraft.block.BlockState, net.minecraft.world.World, net.minecraft.util.math.BlockPos, net.minecraft.block.Block, net.minecraft.world.block.WireOrientation, boolean)
• AbstractBlock.prepare(net.minecraft.block.BlockState, net.minecraft.world.WorldAccess, net.minecraft.util.math.BlockPos, int, int)
• canPlaceAt(net.minecraft.block.BlockState, net.minecraft.world.WorldView, net.minecraft.util.math.BlockPos)
• Block.FORCE_STATE

Mappings:

Namespace	Name	Mixin selector
named	getStateForNeighborUpdate	Lnet/minecraft/block/AbstractBlock;getStateForNeighborUpdate(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/WorldView;Lnet/minecraft/world/tick/ScheduledTickView;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/math/Direction;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;Lnet/minecraft/util/math/random/Random;)Lnet/minecraft/block/BlockState;
intermediary	method_9559	Lnet/minecraft/class_4970;method_9559(Lnet/minecraft/class_2680;Lnet/minecraft/class_4538;Lnet/minecraft/class_10225;Lnet/minecraft/class_2338;Lnet/minecraft/class_2350;Lnet/minecraft/class_2338;Lnet/minecraft/class_2680;Lnet/minecraft/class_5819;)Lnet/minecraft/class_2680;
official	a	Ldxt;a(Ldxu;Ldhk;Ldhw;Ljh;Ljm;Ljh;Ldxu;Lbam;)Ldxu;

getRotationDegrees

public float getRotationDegrees(BlockState state)

Specified by:

getRotationDegrees in class AbstractSignBlock

Mappings:

Namespace	Name	Mixin selector
named	getRotationDegrees	Lnet/minecraft/block/AbstractSignBlock;getRotationDegrees(Lnet/minecraft/block/BlockState;)F
intermediary	method_49814	Lnet/minecraft/class_2478;method_49814(Lnet/minecraft/class_2680;)F
official	h	Ldro;h(Ldxu;)F

rotate

protected BlockState rotate(BlockState state,
 BlockRotation rotation)

Returns state rotated by rotation.

By default, this returns the provided block state.

Overrides:

rotate in class AbstractBlock

Returns:

state rotated by rotation

See Also:

• AbstractBlock.AbstractBlockState.rotate(net.minecraft.util.BlockRotation)

Mappings:

Namespace	Name	Mixin selector
named	rotate	Lnet/minecraft/block/AbstractBlock;rotate(Lnet/minecraft/block/BlockState;Lnet/minecraft/util/BlockRotation;)Lnet/minecraft/block/BlockState;
intermediary	method_9598	Lnet/minecraft/class_4970;method_9598(Lnet/minecraft/class_2680;Lnet/minecraft/class_2470;)Lnet/minecraft/class_2680;
official	a	Ldxt;a(Ldxu;Ldrb;)Ldxu;

mirror

protected BlockState mirror(BlockState state,
 BlockMirror mirror)

Returns state mirrored by mirror.

By default, this returns the provided block state.

Overrides:

mirror in class AbstractBlock

Returns:

state mirrored by mirror

See Also:

• AbstractBlock.AbstractBlockState.mirror(net.minecraft.util.BlockMirror)

Mappings:

Namespace	Name	Mixin selector
named	mirror	Lnet/minecraft/block/AbstractBlock;mirror(Lnet/minecraft/block/BlockState;Lnet/minecraft/util/BlockMirror;)Lnet/minecraft/block/BlockState;
intermediary	method_9569	Lnet/minecraft/class_4970;method_9569(Lnet/minecraft/class_2680;Lnet/minecraft/class_2415;)Lnet/minecraft/class_2680;
official	a	Ldxt;a(Ldxu;Ldpk;)Ldxu;

appendProperties

protected void appendProperties(StateManager.Builder<Block,BlockState> builder)

Appends block state properties to this block. To use this, override and call StateManager.Builder.add(net.minecraft.state.property.Property<?>[]) inside the method. See Properties for the list of pre-defined properties.

Overrides:

appendProperties in class Block

Mappings:

Namespace	Name	Mixin selector
named	appendProperties	Lnet/minecraft/block/Block;appendProperties(Lnet/minecraft/state/StateManager$Builder;)V
intermediary	method_9515	Lnet/minecraft/class_2248;method_9515(Lnet/minecraft/class_2689$class_2690;)V
official	a	Ldkl;a(Ldxv$a;)V

createBlockEntity

public BlockEntity createBlockEntity(BlockPos pos,
 BlockState state)

Returns a new block entity instance.

For example:

 @Override
 public BlockEntity createBlockEntity(BlockPos pos, BlockState state) {
   return new MyBlockEntity(pos, state);
 }
 

Specified by:

createBlockEntity in interface BlockEntityProvider

Overrides:

createBlockEntity in class AbstractSignBlock

Returns:

a new block entity instance

Implementation Note:

While this is marked as nullable, in practice this should never return null. PistonExtensionBlock is the only block in vanilla that returns null inside the implementation.

Mappings:

Namespace	Name	Mixin selector
named	createBlockEntity	Lnet/minecraft/block/BlockEntityProvider;createBlockEntity(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;)Lnet/minecraft/block/entity/BlockEntity;
intermediary	method_10123	Lnet/minecraft/class_2343;method_10123(Lnet/minecraft/class_2338;Lnet/minecraft/class_2680;)Lnet/minecraft/class_2586;
official	a	Ldnf;a(Ljh;Ldxu;)Lduw;

getTicker

@Nullable
public <T extends BlockEntity>
@Nullable BlockEntityTicker<T> getTicker(World world,
 BlockState state,
 BlockEntityType<T> type)

Returns the "ticker" for the block's block entity, or null if the block entity does not need to be ticked.

Ticker is a functional interface called every tick to tick the block entity on both the client and the server.

Tickers should validate that the passed type is the one this block expects, and return null if it isn't. This is to prevent crashes in rare cases where a mismatch occurs between the position's block and block entity. BlockWithEntity.validateTicker(net.minecraft.block.entity.BlockEntityType<A>, net.minecraft.block.entity.BlockEntityType<E>, net.minecraft.block.entity.BlockEntityTicker<? super E>) can be used to implement the check.

Example:

 public <T extends BlockEntity> BlockEntityTicker<T> getTicker(World world, BlockState state, BlockEntityType<T> type) {
   if (type != YourMod.MY_BLOCK_ENTITY_TYPE) return null;
   // This should be a static method usable as a BlockEntityTicker.
   return YourBlockEntity::tick;
 }
 

Specified by:

getTicker in interface BlockEntityProvider

Overrides:

getTicker in class AbstractSignBlock

Returns:

the "ticker" for the block's block entity, or null if the block entity does not need to be ticked

Mappings:

Namespace	Name	Mixin selector
named	getTicker	Lnet/minecraft/block/BlockEntityProvider;getTicker(Lnet/minecraft/world/World;Lnet/minecraft/block/BlockState;Lnet/minecraft/block/entity/BlockEntityType;)Lnet/minecraft/block/entity/BlockEntityTicker;
intermediary	method_31645	Lnet/minecraft/class_2343;method_31645(Lnet/minecraft/class_1937;Lnet/minecraft/class_2680;Lnet/minecraft/class_2591;)Lnet/minecraft/class_5558;
official	a	Ldnf;a(Ldhh;Ldxu;Lduy;)Ldux;