Package net.minecraft.screen

Class HopperScreenHandler

java.lang.Object

net.minecraft.screen.ScreenHandler

net.minecraft.screen.HopperScreenHandler

public class HopperScreenHandler
extends ScreenHandler

Mappings:

Namespace	Name
official	cca
intermediary	net/minecraft/class_1722
named	net/minecraft/screen/HopperScreenHandler

Field Summary

Fields

Modifier and Type	Field	Description
private final Inventory	inventory
static final int	SLOT_COUNT

Fields inherited from class net.minecraft.screen.ScreenHandler

EMPTY_SPACE_SLOT_INDEX, field_30731, field_30732, field_30733, field_30734, field_30735, field_30736, field_30737, slots, syncId

Constructor Summary

Constructors

Constructor	Description
HopperScreenHandler(int syncId, PlayerInventory playerInventory)
HopperScreenHandler(int syncId, PlayerInventory playerInventory, Inventory inventory)

Method Summary

Modifier and Type	Method	Description
boolean	canUse(PlayerEntity player)	Returns whether the screen handler can be used.
void	onClosed(PlayerEntity player)	Called when this screen handler is closed.
ItemStack	quickMove(PlayerEntity player, int slot)	Quick-moves the stack at slot to other slots of the screen handler that belong to a different inventory or another section of the same inventory.

Methods inherited from class net.minecraft.screen.ScreenHandler

addListener, addProperties, addProperty, addSlot, calculateComparatorOutput, calculateComparatorOutput, calculateStackSize, canInsertIntoSlot, canInsertIntoSlot, canInsertItemIntoSlot, canUse, checkDataCount, checkSize, copySharedSlots, disableSyncing, dropInventory, enableSyncing, endQuickCraft, getCursorStack, getRevision, getSlot, getSlotIndex, getStacks, getType, insertItem, isValid, nextRevision, onButtonClick, onContentChanged, onSlotClick, packQuickCraftData, removeListener, sendContentUpdates, setCursorStack, setPreviousCursorStack, setPreviousTrackedSlot, setPreviousTrackedSlotMutable, setProperty, setStackInSlot, shouldQuickCraftContinue, syncState, unpackQuickCraftButton, unpackQuickCraftStage, updateSlotStacks, updateSyncHandler, updateToClient

Methods inherited from class java.lang.Object

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

Field Details

SLOT_COUNT

public static final int SLOT_COUNT

See Also:

• Constant Field Values

Mappings:

Namespace	Name	Mixin selector
official	k	Lcca;k:I
intermediary	field_30801	Lnet/minecraft/class_1722;field_30801:I
named	SLOT_COUNT	Lnet/minecraft/screen/HopperScreenHandler;SLOT_COUNT:I

inventory

private final Inventory inventory

Mappings:

Namespace	Name	Mixin selector
official	l	Lcca;l:Lbdr;
intermediary	field_7826	Lnet/minecraft/class_1722;field_7826:Lnet/minecraft/class_1263;
named	inventory	Lnet/minecraft/screen/HopperScreenHandler;inventory:Lnet/minecraft/inventory/Inventory;

Constructor Details

HopperScreenHandler

public HopperScreenHandler(int syncId,
 PlayerInventory playerInventory)

Mappings:

Namespace	Name	Mixin selector
official	<init>	Lcca;<init>(ILbyl;)V
intermediary	<init>	Lnet/minecraft/class_1722;<init>(ILnet/minecraft/class_1661;)V
named	<init>	Lnet/minecraft/screen/HopperScreenHandler;<init>(ILnet/minecraft/entity/player/PlayerInventory;)V

HopperScreenHandler

public HopperScreenHandler(int syncId,
 PlayerInventory playerInventory,
 Inventory inventory)

Mappings:

Namespace	Name	Mixin selector
official	<init>	Lcca;<init>(ILbyl;Lbdr;)V
intermediary	<init>	Lnet/minecraft/class_1722;<init>(ILnet/minecraft/class_1661;Lnet/minecraft/class_1263;)V
named	<init>	Lnet/minecraft/screen/HopperScreenHandler;<init>(ILnet/minecraft/entity/player/PlayerInventory;Lnet/minecraft/inventory/Inventory;)V

Method Details

canUse

public boolean canUse(PlayerEntity player)

Returns whether the screen handler can be used.

Subclasses should call #canUse(ScreenHandlerContext, PlayerEntity, Block)} or implement the check itself. The implementation should check that the player is near the screen handler's source position (e.g. block position) and that the source (e.g. block) is not destroyed.

Specified by:

canUse in class ScreenHandler

Returns:

whether the screen handler can be used

Mappings:

Namespace	Name	Mixin selector
official	a	Lcbd;a(Lbym;)Z
intermediary	method_7597	Lnet/minecraft/class_1703;method_7597(Lnet/minecraft/class_1657;)Z
named	canUse	Lnet/minecraft/screen/ScreenHandler;canUse(Lnet/minecraft/entity/player/PlayerEntity;)Z

quickMove

public ItemStack quickMove(PlayerEntity player,
 int slot)

Quick-moves the stack at slot to other slots of the screen handler that belong to a different inventory or another section of the same inventory. For example, items can be quick-moved between a chest's slots and the player inventory or between the main player inventory and the hotbar.

Subclasses should call ScreenHandler.insertItem(net.minecraft.item.ItemStack, int, int, boolean), and if the insertion was successful, clear the slot (if the stack is exhausted) or mark it as dirty. See the vanilla subclasses for basic implementation.

Quick-moving is also known as "shift-clicking" since it's usually triggered using Shift+left click.

Specified by:

quickMove in class ScreenHandler

Parameters:

slot - the index of the slot to quick-move from

Returns:

ItemStack.EMPTY when no stack can be transferred, otherwise the original stack

See Also:

• ScreenHandler.insertItem(net.minecraft.item.ItemStack, int, int, boolean)

Mappings:

Namespace	Name	Mixin selector
official	a	Lcbd;a(Lbym;I)Lcfv;
intermediary	method_7601	Lnet/minecraft/class_1703;method_7601(Lnet/minecraft/class_1657;I)Lnet/minecraft/class_1799;
named	quickMove	Lnet/minecraft/screen/ScreenHandler;quickMove(Lnet/minecraft/entity/player/PlayerEntity;I)Lnet/minecraft/item/ItemStack;

onClosed

public void onClosed(PlayerEntity player)

Called when this screen handler is closed.

To close a screen handler, call PlayerEntity.closeHandledScreen() on the server instead of this method.

This drops the cursor stack by default. Subclasses that have slots not backed by a persistent inventory should call ScreenHandler.dropInventory(net.minecraft.entity.player.PlayerEntity, net.minecraft.inventory.Inventory) to drop the stacks.

Overrides:

onClosed in class ScreenHandler

Mappings:

Namespace	Name	Mixin selector
official	b	Lcbd;b(Lbym;)V
intermediary	method_7595	Lnet/minecraft/class_1703;method_7595(Lnet/minecraft/class_1657;)V
named	onClosed	Lnet/minecraft/screen/ScreenHandler;onClosed(Lnet/minecraft/entity/player/PlayerEntity;)V