1 files changed, 45 insertions, 0 deletions
diff --git a/patches/server/0665-Attributes-API-for-item-defaults.patch b/patches/server/0665-Attributes-API-for-item-defaults.patch
new file mode 100644
index 0000000000..7953a2e0d1
--- /dev/null
+++ b/patches/server/0665-Attributes-API-for-item-defaults.patch
@@ -0,0 +1,45 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <[email protected]>
+Date: Sat, 8 May 2021 15:01:54 -0700
+Subject: [PATCH] Attributes API for item defaults
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeInstance.java b/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeInstance.java
+index 7e3826b271b2db3b48e6e21ac2e66911bf8993aa..393a19335c52b6e63d37aacdfbeff93e1795c421 100644
+--- a/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeInstance.java
++++ b/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeInstance.java
+@@ -72,4 +72,10 @@ public class CraftAttributeInstance implements AttributeInstance {
+     public static AttributeModifier convert(net.minecraft.world.entity.ai.attributes.AttributeModifier nms) {
+         return new AttributeModifier(nms.getId(), nms.getName(), nms.getAmount(), AttributeModifier.Operation.values()[nms.getOperation().ordinal()]);
+     }
++
++    // Paper start - construct using slot
++    public static AttributeModifier convert(net.minecraft.world.entity.ai.attributes.AttributeModifier nms, org.bukkit.inventory.EquipmentSlot slot) {
++        return new AttributeModifier(nms.getId(), nms.getName(), nms.getAmount(), AttributeModifier.Operation.values()[nms.getOperation().ordinal()], slot);
++    }
++    // Paper end
+ }
+diff --git a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+index 1b1147c10c2e9caa4ccf3f2bcdb1211ed39d293a..444da43415fc1341800260ebf9359f29dc628c22 100644
+--- a/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
++++ b/src/main/java/org/bukkit/craftbukkit/util/CraftMagicNumbers.java
+@@ -499,6 +499,19 @@ public final class CraftMagicNumbers implements UnsafeValues {
+         return CraftMagicNumbers.getItem(itemToBeRepaired.getType()).isValidRepairItem(CraftItemStack.asNMSCopy(itemToBeRepaired), CraftItemStack.asNMSCopy(repairMaterial));
+     }
+ 
++    @Override
++    public com.google.common.collect.Multimap<org.bukkit.attribute.Attribute, org.bukkit.attribute.AttributeModifier> getItemAttributes(org.bukkit.Material material, org.bukkit.inventory.EquipmentSlot equipmentSlot) {
++        Item item = CraftMagicNumbers.getItem(material);
++        if (item == null) {
++            throw new IllegalArgumentException(material + " is not an item and therefore does not have attributes");
++        }
++        com.google.common.collect.ImmutableMultimap.Builder<org.bukkit.attribute.Attribute, org.bukkit.attribute.AttributeModifier> attributeMapBuilder = com.google.common.collect.ImmutableMultimap.builder();
++        item.getDefaultAttributeModifiers(org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(equipmentSlot)).forEach((attributeBase, attributeModifier) -> {
++            attributeMapBuilder.put(org.bukkit.Registry.ATTRIBUTE.get(CraftNamespacedKey.fromMinecraft(net.minecraft.core.Registry.ATTRIBUTE.getKey(attributeBase))), org.bukkit.craftbukkit.attribute.CraftAttributeInstance.convert(attributeModifier, equipmentSlot));
++        });
++        return attributeMapBuilder.build();
++    }
++
+     @Override
+     public int getProtocolVersion() {
+         return net.minecraft.SharedConstants.getCurrentVersion().getProtocolVersion();