Package net.neoforged.neoforge.items

Class StackCopySlot

java.lang.Object

net.minecraft.world.inventory.Slot

net.neoforged.neoforge.items.StackCopySlot

Direct Known Subclasses:

ItemHandlerCopySlot

public abstract class StackCopySlot
extends Slot

Slot to handle immutable itemstack storages (Ex: ComponentItemHandler).

For an implementation for use with an IItemHandler see ItemHandlerCopySlot.

Vanilla MC code modifies the stack returned by `getStack()` directly, but it calls setChanged() when that happens, so we just cache the returned stack, and set it when setChanged() is called.

Field Summary

Fields

Modifier and Type	Field	Description
private @Nullable ItemStack	cachedReturnedStack
private static final Container	emptyInventory

Fields inherited from class net.minecraft.world.inventory.Slot

container, index, x, y

Constructor Summary

Constructors

Constructor	Description
StackCopySlot(int x, int y)

Method Summary

Modifier and Type	Method	Description
final ItemStack	getItem()
protected abstract ItemStack	getStackCopy()	Gets the itemstack from the storage.
final ItemStack	remove(int amount)	Decrease the size of the stack in slot (first int arg) by the amount of the second int arg.
final void	set(ItemStack stack)	Helper method to put a stack in the slot.
final void	setChanged()
protected abstract void	setStackCopy(ItemStack stack)	Sets the itemstack from the storage.

Methods inherited from class net.minecraft.world.inventory.Slot

allowModification, checkTakeAchievements, getContainerSlot, getMaxStackSize, getMaxStackSize, getNoItemIcon, getSlotIndex, hasItem, isActive, isFake, isHighlightable, isSameInventory, mayPickup, mayPlace, onQuickCraft, onQuickCraft, onSwapCraft, onTake, safeInsert, safeInsert, safeTake, setBackground, setByPlayer, setByPlayer, tryRemove

Methods inherited from class java.lang.Object

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

Field Details

emptyInventory

private static final Container emptyInventory

cachedReturnedStack

@Nullable
private @Nullable ItemStack cachedReturnedStack

Constructor Details

StackCopySlot

public StackCopySlot(int x,
 int y)

Method Details

getStackCopy

protected abstract ItemStack getStackCopy()

Gets the itemstack from the storage.

Returns:

the stack in this slot

setStackCopy

protected abstract void setStackCopy(ItemStack stack)

Sets the itemstack from the storage.

Parameters:

stack - the stack to put into this slot

getItem

public final ItemStack getItem()

Overrides:

getItem in class Slot

set

public final void set(ItemStack stack)

Description copied from class: Slot

Helper method to put a stack in the slot.

Overrides:

set in class Slot

setChanged

public final void setChanged()

Overrides:

setChanged in class Slot

remove

public final ItemStack remove(int amount)

Description copied from class: Slot

Decrease the size of the stack in slot (first int arg) by the amount of the second int arg. Returns the new stack.

Overrides:

remove in class Slot