Package net.neoforged.neoforge.common.util

Class AttributeUtil

java.lang.Object

net.neoforged.neoforge.common.util.AttributeUtil

public class AttributeUtil
extends Object

Utility code to support IAttributeExtension.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final record	AttributeUtil.BaseModifier	Stores a single base modifier (determined by IAttributeExtension.getBaseId()) and any other children non-base modifiers for the same attribute.
private static class	AttributeUtil.ClientAccess	Client bouncer class to avoid class loading issues.
private static class	AttributeUtil.MergedModifierData	State-tracking object used to merge attribute modifier tooltips in applyTextFor(net.minecraft.world.item.ItemStack, java.util.function.Consumer<net.minecraft.network.chat.Component>, com.google.common.collect.Multimap<net.minecraft.core.Holder<net.minecraft.world.entity.ai.attributes.Attribute>, net.minecraft.world.entity.ai.attributes.AttributeModifier>, net.neoforged.neoforge.common.util.AttributeTooltipContext).

Field Summary

Fields

Modifier and Type	Field	Description
static final Comparator<AttributeModifier>	ATTRIBUTE_MODIFIER_COMPARATOR	Comparator for AttributeModifier.
static final ResourceLocation	BASE_ATTACK_DAMAGE_ID	ID of the base modifier for Attack Damage
static final ResourceLocation	BASE_ATTACK_SPEED_ID	ID of the base modifier for Attack Speed
static final ResourceLocation	BASE_ENTITY_REACH_ID	ID of the base modifier for Attack Range
static final ResourceLocation	FAKE_MERGED_ID	ID used for attribute modifiers used to hold merged values when NeoForgeMod.enableMergedAttributeTooltips() is active.
private static final org.apache.logging.log4j.Logger	LOGGER

Constructor Summary

Constructors

Constructor	Description
AttributeUtil()

Method Summary

Modifier and Type	Method	Description
static void	addAttributeTooltips(ItemStack stack, Consumer<Component> tooltip, AttributeTooltipContext ctx)	Checks if attribute modifier tooltips should show, and if they should, adds tooltips for all attribute modifiers present on an item stack to the stack's tooltip lines.
static void	addPotionTooltip(List<com.mojang.datafixers.util.Pair<Holder<Attribute>,AttributeModifier>> list, Consumer<Component> tooltips)	Adds tooltip lines for the attribute modifiers contained in a PotionContents.
static void	applyModifierTooltips(ItemStack stack, Consumer<Component> tooltip, AttributeTooltipContext ctx)	Applies the attribute modifier tooltips for all attribute modifiers present on the item stack.
static void	applyTextFor(ItemStack stack, Consumer<Component> tooltip, com.google.common.collect.Multimap<Holder<Attribute>,AttributeModifier> modifierMap, AttributeTooltipContext ctx)	Applies the text for the provided attribute modifiers to the tooltip for a given item stack.
static com.google.common.collect.Multimap<Holder<Attribute>,AttributeModifier>	getSortedModifiers(ItemStack stack, EquipmentSlotGroup slot)	Returns a sorted, mutable Multimap containing all the attribute modifiers on an item stack for the given group.
private static TooltipFlag	getTooltipFlag()	Gets the current global tooltip flag.
private static MutableComponent	listHeader()	Creates a mutable component starting with the char used to represent a drop-down list.
static com.google.common.collect.Multimap<Holder<Attribute>,AttributeModifier>	sortedMap()	Creates a sorted TreeMultimap used to ensure a stable iteration order of item attribute modifiers.

Methods inherited from class java.lang.Object

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

Field Details

BASE_ATTACK_DAMAGE_ID

public static final ResourceLocation BASE_ATTACK_DAMAGE_ID

ID of the base modifier for Attack Damage

BASE_ATTACK_SPEED_ID

public static final ResourceLocation BASE_ATTACK_SPEED_ID

ID of the base modifier for Attack Speed

BASE_ENTITY_REACH_ID

public static final ResourceLocation BASE_ENTITY_REACH_ID

ID of the base modifier for Attack Range

FAKE_MERGED_ID

public static final ResourceLocation FAKE_MERGED_ID

ID used for attribute modifiers used to hold merged values when NeoForgeMod.enableMergedAttributeTooltips() is active.

Should not be used by any real attribute modifiers for gameplay purposes.

ATTRIBUTE_MODIFIER_COMPARATOR

public static final Comparator<AttributeModifier> ATTRIBUTE_MODIFIER_COMPARATOR

Comparator for AttributeModifier. First compares by operation, then amount, then the ID.

LOGGER

private static final org.apache.logging.log4j.Logger LOGGER

Constructor Details

AttributeUtil

public AttributeUtil()

Method Details

addAttributeTooltips

public static void addAttributeTooltips(ItemStack stack,
 Consumer<Component> tooltip,
 AttributeTooltipContext ctx)

Checks if attribute modifier tooltips should show, and if they should, adds tooltips for all attribute modifiers present on an item stack to the stack's tooltip lines.

After the tooltip lines have been added, fires the AddAttributeTooltipsEvent to allow mods to add additional attribute-related lines.

Parameters:

tooltip - A consumer to add the tooltip lines to.

ctx - The tooltip context.

applyModifierTooltips

public static void applyModifierTooltips(ItemStack stack,
 Consumer<Component> tooltip,
 AttributeTooltipContext ctx)

Applies the attribute modifier tooltips for all attribute modifiers present on the item stack.

Before application, this method posts the GatherSkippedAttributeTooltipsEvent to determine which tooltips should be skipped.

This method is also responsible for adding the modifier group category labels.

Parameters:

tooltip - A consumer to add the tooltip lines to.

ctx - The tooltip context.

applyTextFor

public static void applyTextFor(ItemStack stack,
 Consumer<Component> tooltip,
 com.google.common.collect.Multimap<Holder<Attribute>,AttributeModifier> modifierMap,
 AttributeTooltipContext ctx)

Applies the text for the provided attribute modifiers to the tooltip for a given item stack.

This method will attempt to merge multiple modifiers for a single attribute into a single modifier if NeoForgeMod.enableMergedAttributeTooltips() was called.

Parameters:

stack - The item stack that owns the modifiers.

tooltip - The consumer to append tooltip components to.

modifierMap - A mutable map of modifiers to convert into tooltip lines.

ctx - The tooltip context.

addPotionTooltip

public static void addPotionTooltip(List<com.mojang.datafixers.util.Pair<Holder<Attribute>,AttributeModifier>> list,
 Consumer<Component> tooltips)

Adds tooltip lines for the attribute modifiers contained in a PotionContents.

Parameters:

list - The list of attribute modifiers generated by calling MobEffect.createModifiers(int, java.util.function.BiConsumer<net.minecraft.core.Holder<net.minecraft.world.entity.ai.attributes.Attribute>, net.minecraft.world.entity.ai.attributes.AttributeModifier>) for each mob effect instance on the potion.

tooltips - The tooltip consumer to add lines to.

sortedMap

public static com.google.common.collect.Multimap<Holder<Attribute>,AttributeModifier> sortedMap()

Creates a sorted TreeMultimap used to ensure a stable iteration order of item attribute modifiers.

getSortedModifiers

public static com.google.common.collect.Multimap<Holder<Attribute>,AttributeModifier> getSortedModifiers(ItemStack stack,
 EquipmentSlotGroup slot)

Returns a sorted, mutable Multimap containing all the attribute modifiers on an item stack for the given group.

This includes attribute modifiers from components (or default modifiers, if not present), enchantments, and the ItemAttributeModifierEvent.

Parameters:

stack - The stack to query modifiers for.

slot - The slot group to query modifiers for.

listHeader

private static MutableComponent listHeader()

Creates a mutable component starting with the char used to represent a drop-down list.

getTooltipFlag

private static TooltipFlag getTooltipFlag()

Gets the current global tooltip flag. Used by addPotionTooltip(java.util.List<com.mojang.datafixers.util.Pair<net.minecraft.core.Holder<net.minecraft.world.entity.ai.attributes.Attribute>, net.minecraft.world.entity.ai.attributes.AttributeModifier>>, java.util.function.Consumer<net.minecraft.network.chat.Component>) since one isn't available locally.

Returns:

If called on the client, the current tooltip flag, otherwise TooltipFlag.NORMAL