Package net.minecraft.world.level.block.entity

Class HopperBlockEntity

java.lang.Object

net.neoforged.neoforge.attachment.AttachmentHolder

net.minecraft.world.level.block.entity.BlockEntity

net.minecraft.world.level.block.entity.BaseContainerBlockEntity

net.minecraft.world.level.block.entity.RandomizableContainerBlockEntity

net.minecraft.world.level.block.entity.HopperBlockEntity

All Implemented Interfaces:

Iterable<ItemStack>, DebugValueSource, Clearable, Container, MenuConstructor, Hopper, MenuProvider, Nameable, RandomizableContainer, IAttachmentHolder, ContainerExtension, IBlockEntityExtension, IMenuProviderExtension

public class HopperBlockEntity
extends RandomizableContainerBlockEntity
implements Hopper

Nested Class Summary

Nested classes/interfaces inherited from class net.minecraft.world.level.block.entity.BlockEntity

BlockEntity.BlockEntityPathElement

Nested classes/interfaces inherited from class net.neoforged.neoforge.attachment.AttachmentHolder

AttachmentHolder.AsField

Nested classes/interfaces inherited from interface net.minecraft.world.Container

Container.ContainerIterator

Nested classes/interfaces inherited from interface net.minecraft.util.debug.DebugValueSource

DebugValueSource.Registration, DebugValueSource.ValueGetter<T>

Field Summary

Fields

Modifier and Type	Field	Description
private static final int[][]	CACHED_SLOTS
private int	cooldownTime
private final SnapshotJournal<Integer>	cooldownTimeJournal
private static final Component	DEFAULT_NAME
private Direction	facing
static final int	HOPPER_CONTAINER_SIZE
private NonNullList<ItemStack>	items
static final int	MOVE_ITEM_SPEED
private static final int	NO_COOLDOWN_TIME
private long	tickedGameTime

Fields inherited from class net.minecraft.world.level.block.entity.RandomizableContainerBlockEntity

lootTable, lootTableSeed

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

level, remove, worldPosition

Fields inherited from class net.neoforged.neoforge.attachment.AttachmentHolder

ATTACHMENTS_NBT_KEY

Fields inherited from interface net.minecraft.world.Container

DEFAULT_DISTANCE_BUFFER

Fields inherited from interface net.minecraft.world.level.block.entity.Hopper

SUCK_AABB

Fields inherited from interface net.minecraft.world.RandomizableContainer

LOOT_TABLE_SEED_TAG, LOOT_TABLE_TAG

Constructor Summary

Constructors

Constructor	Description
HopperBlockEntity(BlockPos pPos, BlockState pBlockState)

Method Summary

Modifier and Type	Method	Description
static ItemStack	addItem(Container pSource, Container pDestination, ItemStack pStack, Direction pDirection)	Attempts to place the passed stack in the container, using as many slots as required.
static boolean	addItem(Container pContainer, ItemEntity pItem)
private static boolean	canMergeItems(ItemStack pStack1, ItemStack pStack2)
private static boolean	canPlaceItemInContainer(Container pContainer, ItemStack pStack, int pSlot, Direction pDirection)
private static boolean	canTakeItemFromContainer(Container pSource, Container pDestination, ItemStack pStack, int pSlot, Direction pDirection)
private static int[]	createFlatSlots(int pSize)
protected AbstractContainerMenu	createMenu(int pId, Inventory pPlayer)
private static boolean	ejectItems(Level pLevel, BlockPos pPos, HopperBlockEntity pBlockEntity)
static void	entityInside(Level pLevel, BlockPos pPos, BlockState pState, Entity pEntity, HopperBlockEntity pBlockEntity)
private static Container	getAttachedContainer(Level pLevel, BlockPos pPos, HopperBlockEntity pBlockEntity)
private static Container	getBlockContainer(Level pLevel, BlockPos pPos, BlockState pState)
static Container	getContainerAt(Level pLevel, BlockPos pPos)	Deprecated. Use IItemHandler capability instead.
private static Container	getContainerAt(Level pLevel, BlockPos pPos, BlockState pState, double pX, double pY, double pZ)
static ContainerOrHandler	getContainerOrHandlerAt(Level level, BlockPos pos, Direction side)
private static ContainerOrHandler	getContainerOrHandlerAt(Level level, BlockPos pos, BlockState state, double x, double y, double z, Direction side)
int	getContainerSize()
protected Component	getDefaultName()
private static Container	getEntityContainer(Level pLevel, double pX, double pY, double pZ)
protected NonNullList<ItemStack>	getItems()
static List<ItemEntity>	getItemsAtAndAbove(Level pLevel, Hopper pHopper)
long	getLastUpdateTime()
double	getLevelX()
double	getLevelY()
double	getLevelZ()
private static int[]	getSlots(Container pContainer, Direction pDirection)
private static Container	getSourceContainer(Level pLevel, Hopper pHopper, BlockPos pPos, BlockState pState)
private static ContainerOrHandler	getSourceContainerOrHandler(Level p_155597_, Hopper p_155598_, BlockPos p_326315_, BlockState p_326093_)
private boolean	inventoryFull()
private static boolean	isFullContainer(Container pContainer, Direction pDirection)
boolean	isGridAligned()
private boolean	isOnCooldown()
boolean	isOnCustomCooldown()
protected void	loadAdditional(ValueInput p_421495_)
void	onTransfer(int slot, int amountChange, TransactionContext transaction)	Perform additional logic during the transaction, immediately after a successful transfer (i.e.
static void	pushItemsTick(Level pLevel, BlockPos pPos, BlockState pState, HopperBlockEntity pBlockEntity)
ItemStack	removeItem(int pIndex, int pCount)	Removes up to a specified number of items from an inventory slot and returns them in a new stack.
protected void	saveAdditional(ValueOutput p_422620_)
void	setBlockState(BlockState p_326468_)
void	setCooldown(int pCooldownTime)
void	setItem(int pIndex, ItemStack pStack)	Sets the given item stack to the specified slot in the inventory (can be crafting or armor sections).
protected void	setItems(NonNullList<ItemStack> pItems)
static boolean	suckInItems(Level pLevel, Hopper pHopper)
private static ItemStack	tryMoveInItem(Container pSource, Container pDestination, ItemStack pStack, int pSlot, Direction pDirection)
private static boolean	tryMoveItems(Level pLevel, BlockPos pPos, BlockState pState, HopperBlockEntity pBlockEntity, BooleanSupplier pValidator)
private static boolean	tryTakeInItemFromSlot(Hopper pHopper, Container pContainer, int pSlot, Direction pDirection)	Pulls from the specified slot in the container and places in any available slot in the hopper.
private boolean	wasEmpty(int slot, int amountChange)

Methods inherited from class net.minecraft.world.level.block.entity.RandomizableContainerBlockEntity

applyImplicitComponents, canOpen, collectImplicitComponents, createMenu, getItem, getLootTable, getLootTableSeed, isEmpty, removeComponentsFromTag, removeItemNoUpdate, setLootTable, setLootTableSeed

Methods inherited from class net.minecraft.world.level.block.entity.BaseContainerBlockEntity

canUnlock, clearContent, getCustomName, getDisplayName, getName, isLocked, setItem, stillValid

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

addEntityType, applyComponents, applyComponentsFromItemStack, clearRemoved, collectComponents, components, fillCrashReportCategory, getBlockPos, getBlockState, getLevel, getNameForReporting, getPersistentData, getPosFromTag, getType, getUpdatePacket, getUpdateTag, hasLevel, isRemoved, isValidBlockState, loadCustomOnly, loadStatic, loadWithComponents, parseCustomNameSafe, preRemoveSideEffects, problemPath, registerDebugValues, removeData, saveCustomOnly, saveCustomOnly, saveWithFullMetadata, saveWithFullMetadata, saveWithId, saveWithoutMetadata, saveWithoutMetadata, setChanged, setChanged, setComponents, setData, setLevel, setRemoved, syncData, triggerEvent

Methods inherited from class net.neoforged.neoforge.attachment.AttachmentHolder

deserializeAttachments, getData, getExistingDataOrNull, hasAttachments, hasData, serializeAttachments

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.minecraft.world.Clearable

clearContent

Methods inherited from interface net.minecraft.world.Container

canPlaceItem, canTakeItem, countItem, getEntitiesWithContainerOpen, getItem, getMaxStackSize, getMaxStackSize, hasAnyMatching, hasAnyOf, isEmpty, iterator, removeItemNoUpdate, setChanged, startOpen, stillValid, stopOpen

Methods inherited from interface net.neoforged.neoforge.common.extensions.ContainerExtension

setItem

Methods inherited from interface net.minecraft.world.level.block.entity.Hopper

getSuckAabb

Methods inherited from interface net.neoforged.neoforge.attachment.IAttachmentHolder

getData, getExistingData, getExistingData, getExistingDataOrNull, hasData, removeData, setData, syncData

Methods inherited from interface net.neoforged.neoforge.common.extensions.IBlockEntityExtension

getModelData, handleUpdateTag, hasCustomOutlineRendering, invalidateCapabilities, onChunkUnloaded, onDataPacket, onLoad, requestModelDataUpdate

Methods inherited from interface net.neoforged.neoforge.common.extensions.IMenuProviderExtension

shouldTriggerClientSideContainerClosingOnOpen, writeClientSideData

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface net.minecraft.world.Nameable

getPlainTextName, hasCustomName

Methods inherited from interface net.minecraft.world.RandomizableContainer

getBlockPos, getLevel, setLootTable, tryLoadLootTable, trySaveLootTable, unpackLootTable

Field Details

MOVE_ITEM_SPEED

public static final int MOVE_ITEM_SPEED

See Also:

• Constant Field Values

HOPPER_CONTAINER_SIZE

public static final int HOPPER_CONTAINER_SIZE

See Also:

• Constant Field Values

CACHED_SLOTS

private static final int[][] CACHED_SLOTS

NO_COOLDOWN_TIME

private static final int NO_COOLDOWN_TIME

See Also:

• Constant Field Values

DEFAULT_NAME

private static final Component DEFAULT_NAME

items

private NonNullList<ItemStack> items

cooldownTime

private int cooldownTime

tickedGameTime

private long tickedGameTime

facing

private Direction facing

cooldownTimeJournal

private final SnapshotJournal<Integer> cooldownTimeJournal

Constructor Details

HopperBlockEntity

public HopperBlockEntity(BlockPos pPos,
 BlockState pBlockState)

Method Details

loadAdditional

protected void loadAdditional(ValueInput p_421495_)

Overrides:

loadAdditional in class BaseContainerBlockEntity

saveAdditional

protected void saveAdditional(ValueOutput p_422620_)

Overrides:

saveAdditional in class BaseContainerBlockEntity

getContainerSize

public int getContainerSize()

Specified by:

getContainerSize in interface Container

removeItem

public ItemStack removeItem(int pIndex,
 int pCount)

Description copied from interface: Container

Removes up to a specified number of items from an inventory slot and returns them in a new stack.

Specified by:

removeItem in interface Container

Overrides:

removeItem in class RandomizableContainerBlockEntity

setItem

public void setItem(int pIndex,
 ItemStack pStack)

Description copied from interface: Container

Sets the given item stack to the specified slot in the inventory (can be crafting or armor sections).

Specified by:

setItem in interface Container

Overrides:

setItem in class RandomizableContainerBlockEntity

wasEmpty

private boolean wasEmpty(int slot,
 int amountChange)

onTransfer

public void onTransfer(int slot,
 int amountChange,
 TransactionContext transaction)

Description copied from interface: ContainerExtension

Perform additional logic during the transaction, immediately after a successful transfer (i.e. insert or extract with result > 0). Any logic performed by this method should be fully transactional, and support being rolled back. In other words, the transaction is still ongoing.

Specified by:

onTransfer in interface ContainerExtension

Parameters:

amountChange - If positive, the amount of items that were just inserted into this slot. If negative, minus the amount of items that were just extracted from this slot.

setBlockState

public void setBlockState(BlockState p_326468_)

Overrides:

setBlockState in class BlockEntity

getDefaultName

protected Component getDefaultName()

Specified by:

getDefaultName in class BaseContainerBlockEntity

pushItemsTick

public static void pushItemsTick(Level pLevel,
 BlockPos pPos,
 BlockState pState,
 HopperBlockEntity pBlockEntity)

tryMoveItems

private static boolean tryMoveItems(Level pLevel,
 BlockPos pPos,
 BlockState pState,
 HopperBlockEntity pBlockEntity,
 BooleanSupplier pValidator)

inventoryFull

private boolean inventoryFull()

ejectItems

private static boolean ejectItems(Level pLevel,
 BlockPos pPos,
 HopperBlockEntity pBlockEntity)

getSlots

private static int[] getSlots(Container pContainer,
 Direction pDirection)

createFlatSlots

private static int[] createFlatSlots(int pSize)

isFullContainer

private static boolean isFullContainer(Container pContainer,
 Direction pDirection)

Returns:

false if the container has any room to place items in

suckInItems

public static boolean suckInItems(Level pLevel,
 Hopper pHopper)

tryTakeInItemFromSlot

private static boolean tryTakeInItemFromSlot(Hopper pHopper,
 Container pContainer,
 int pSlot,
 Direction pDirection)

Pulls from the specified slot in the container and places in any available slot in the hopper.

Returns:

true if the entire stack was moved.

addItem

public static boolean addItem(Container pContainer,
 ItemEntity pItem)

addItem

public static ItemStack addItem(@Nullable
 Container pSource,
 Container pDestination,
 ItemStack pStack,
 @Nullable
 Direction pDirection)

Attempts to place the passed stack in the container, using as many slots as required.

Returns:

any leftover stack

canPlaceItemInContainer

private static boolean canPlaceItemInContainer(Container pContainer,
 ItemStack pStack,
 int pSlot,
 @Nullable
 Direction pDirection)

canTakeItemFromContainer

private static boolean canTakeItemFromContainer(Container pSource,
 Container pDestination,
 ItemStack pStack,
 int pSlot,
 Direction pDirection)

tryMoveInItem

private static ItemStack tryMoveInItem(@Nullable
 Container pSource,
 Container pDestination,
 ItemStack pStack,
 int pSlot,
 @Nullable
 Direction pDirection)

getAttachedContainer

@Nullable
private static Container getAttachedContainer(Level pLevel,
 BlockPos pPos,
 HopperBlockEntity pBlockEntity)

getSourceContainer

@Nullable
private static Container getSourceContainer(Level pLevel,
 Hopper pHopper,
 BlockPos pPos,
 BlockState pState)

getItemsAtAndAbove

public static List<ItemEntity> getItemsAtAndAbove(Level pLevel,
 Hopper pHopper)

getContainerAt

@Deprecated
@Nullable
public static Container getContainerAt(Level pLevel,
 BlockPos pPos)

Deprecated.

Use IItemHandler capability instead. To preserve Container-specific interactions, use getContainerOrHandlerAt(net.minecraft.world.level.Level, net.minecraft.core.BlockPos, net.minecraft.core.Direction) and handle both cases.

getContainerAt

@Nullable
private static Container getContainerAt(Level pLevel,
 BlockPos pPos,
 BlockState pState,
 double pX,
 double pY,
 double pZ)

getBlockContainer

@Nullable
private static Container getBlockContainer(Level pLevel,
 BlockPos pPos,
 BlockState pState)

getEntityContainer

@Nullable
private static Container getEntityContainer(Level pLevel,
 double pX,
 double pY,
 double pZ)

getSourceContainerOrHandler

private static ContainerOrHandler getSourceContainerOrHandler(Level p_155597_,
 Hopper p_155598_,
 BlockPos p_326315_,
 BlockState p_326093_)

getContainerOrHandlerAt

public static ContainerOrHandler getContainerOrHandlerAt(Level level,
 BlockPos pos,
 @Nullable
 Direction side)

getContainerOrHandlerAt

private static ContainerOrHandler getContainerOrHandlerAt(Level level,
 BlockPos pos,
 BlockState state,
 double x,
 double y,
 double z,
 @Nullable
 Direction side)

canMergeItems

private static boolean canMergeItems(ItemStack pStack1,
 ItemStack pStack2)

getLevelX

public double getLevelX()

Specified by:

getLevelX in interface Hopper

getLevelY

public double getLevelY()

Specified by:

getLevelY in interface Hopper

getLevelZ

public double getLevelZ()

Specified by:

getLevelZ in interface Hopper

isGridAligned

public boolean isGridAligned()

Specified by:

isGridAligned in interface Hopper

setCooldown

public void setCooldown(int pCooldownTime)

isOnCooldown

private boolean isOnCooldown()

isOnCustomCooldown

public boolean isOnCustomCooldown()

getItems

protected NonNullList<ItemStack> getItems()

Specified by:

getItems in class BaseContainerBlockEntity

setItems

protected void setItems(NonNullList<ItemStack> pItems)

Specified by:

setItems in class BaseContainerBlockEntity

entityInside

public static void entityInside(Level pLevel,
 BlockPos pPos,
 BlockState pState,
 Entity pEntity,
 HopperBlockEntity pBlockEntity)

createMenu

protected AbstractContainerMenu createMenu(int pId,
 Inventory pPlayer)

Specified by:

createMenu in class BaseContainerBlockEntity

getLastUpdateTime

public long getLastUpdateTime()