Paper/patches/server/0551-Improve-item-default-attribute-API.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 8 May 2021 15:01:54 -0700
Subject: [PATCH] Improve item default attribute API
Also fixes an issue where upstream isn't
actually getting the correct default attributes
diff --git a/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeInstance.java b/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeInstance.java
index 8afbb8e0cb368e95f23bb78c1261f9aa9b8abd86..0a18983151d17b8e1460b82326b0380087e13795 100644
--- a/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeInstance.java
+++ b/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeInstance.java
@@ -74,7 +74,7 @@ public class CraftAttributeInstance implements AttributeInstance {
return new AttributeModifier(nms.id(), nms.name, nms.amount(), AttributeModifier.Operation.values()[nms.operation().ordinal()]);
}
- public static AttributeModifier convert(net.minecraft.world.entity.ai.attributes.AttributeModifier nms, EquipmentSlot slot) {
- return new AttributeModifier(nms.id(), nms.name, nms.amount(), AttributeModifier.Operation.values()[nms.operation().ordinal()], slot);
+ public static AttributeModifier convert(net.minecraft.world.entity.ai.attributes.AttributeModifier nms, net.minecraft.world.entity.EquipmentSlotGroup slot) { // Paper
+ return new AttributeModifier(nms.id(), nms.name, nms.amount(), AttributeModifier.Operation.values()[nms.operation().ordinal()], org.bukkit.craftbukkit.CraftEquipmentSlot.getSlot(slot)); // Paper
}
}
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemType.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemType.java
index 1aa8010e872686f392430ce47214a324d431cada..6bcc3192097dfbf378592fd2437a80dcd0825f13 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemType.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemType.java
@@ -187,15 +187,34 @@ public class CraftItemType<M extends ItemMeta> implements ItemType.Typed<M>, Han
// return CraftEquipmentSlot.getSlot(EntityInsentient.getEquipmentSlotForItem(CraftItemStack.asNMSCopy(ItemStack.of(this))));
// }
+ // Paper start - improve default attribute API
+ @Override
+ public @NotNull Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers() {
+ return this.getDefaultAttributeModifiers(sg -> true);
+ }
+ // Paper end - improve default attribute API
+
@Override
public Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers(EquipmentSlot slot) {
- ImmutableMultimap.Builder<Attribute, AttributeModifier> defaultAttributes = ImmutableMultimap.builder();
+ // Paper start - improve/fix item default attribute API
+ final net.minecraft.world.entity.EquipmentSlot nmsSlot = CraftEquipmentSlot.getNMS(slot);
+ return this.getDefaultAttributeModifiers(sg -> sg.test(nmsSlot));
+ }
- ItemAttributeModifiers nmsDefaultAttributes = this.item.getDefaultAttributeModifiers();
- nmsDefaultAttributes.forEach(CraftEquipmentSlot.getNMS(slot), (key, value) -> {
- Attribute attribute = CraftAttribute.minecraftToBukkit(key.value());
- defaultAttributes.put(attribute, CraftAttributeInstance.convert(value, slot));
- });
+ private Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers(final java.util.function.Predicate<net.minecraft.world.entity.EquipmentSlotGroup> slotPredicate) {
+ final ImmutableMultimap.Builder<Attribute, AttributeModifier> defaultAttributes = ImmutableMultimap.builder();
+ ItemAttributeModifiers nmsDefaultAttributes = this.item.components().getOrDefault(DataComponents.ATTRIBUTE_MODIFIERS, ItemAttributeModifiers.EMPTY);
+ if (nmsDefaultAttributes.modifiers().isEmpty()) {
+ // we have to check both places cause for some reason vanilla puts default modifiers for armor in a different place
+ nmsDefaultAttributes = this.item.getDefaultAttributeModifiers();
+ }
+ for (final net.minecraft.world.item.component.ItemAttributeModifiers.Entry entry : nmsDefaultAttributes.modifiers()) {
+ if (!slotPredicate.test(entry.slot())) continue;
+ final Attribute attribute = CraftAttribute.minecraftHolderToBukkit(entry.attribute());
+ final AttributeModifier modifier = CraftAttributeInstance.convert(entry.modifier(), entry.slot());
+ defaultAttributes.put(attribute, modifier);
+ }
+ // Paper end - improve/fix item default attribute API
return defaultAttributes.build();
}
diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
index 952a8147947fa0e2a960628fc760212d3d206ce6..f0577689f4c57ce6254aad32ccf5d8eac961c9bd 100644
--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
@@ -399,15 +399,11 @@ public final class CraftMagicNumbers implements UnsafeValues {
@Override
public Multimap<Attribute, AttributeModifier> getDefaultAttributeModifiers(Material material, EquipmentSlot slot) {
- ImmutableMultimap.Builder<Attribute, AttributeModifier> defaultAttributes = ImmutableMultimap.builder();
-
- ItemAttributeModifiers nmsDefaultAttributes = CraftMagicNumbers.getItem(material).getDefaultAttributeModifiers();
- nmsDefaultAttributes.forEach(CraftEquipmentSlot.getNMS(slot), (key, value) -> {
- Attribute attribute = CraftAttribute.minecraftToBukkit(key.value());
- defaultAttributes.put(attribute, CraftAttributeInstance.convert(value, slot));
- });
-
- return defaultAttributes.build();
+ // Paper start - delegate to method on ItemType
+ final org.bukkit.inventory.ItemType item = material.asItemType();
+ Preconditions.checkArgument(item != null, material + " is not an item and does not have default attributes");
+ return item.getDefaultAttributeModifiers(slot);
+ // Paper end - delegate to method on ItemType
}
@Override