Paper/patches/server/0504-living-entity-allow-attribute-registration.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: ysl3000 <yannicklamprecht@live.de>
Date: Sat, 24 Oct 2020 16:37:44 +0200
Subject: [PATCH] living entity allow attribute registration


diff --git a/src/main/java/net/minecraft/world/entity/ai/attributes/AttributeMap.java b/src/main/java/net/minecraft/world/entity/ai/attributes/AttributeMap.java
index f03f40e2624d0e8e27a6fb7ae33d82cb614252f4..9ef8f014af332da129bfcd3370da983ec035ecc6 100644
--- a/src/main/java/net/minecraft/world/entity/ai/attributes/AttributeMap.java
+++ b/src/main/java/net/minecraft/world/entity/ai/attributes/AttributeMap.java
@@ -106,4 +106,12 @@ public class AttributeMap {
             }
         }
     }
+
+    // Paper - start - living entity allow attribute registration
+    public void registerAttribute(Holder<Attribute> attributeBase) {
+        AttributeInstance attributeModifiable = new AttributeInstance(attributeBase, AttributeInstance::getAttribute);
+        attributes.put(attributeBase, attributeModifiable);
+    }
+    // Paper - end - living entity allow attribute registration
+
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeMap.java b/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeMap.java
index a0a34f680e21007ebf2c2497d2e6505eedae6481..485b4d5a0ae9d8ac528749e87b4b2833732120a8 100644
--- a/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeMap.java
+++ b/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeMap.java
@@ -35,4 +35,11 @@ public class CraftAttributeMap implements Attributable {
 
         return (nms == null) ? null : new CraftAttributeInstance(nms, attribute);
     }
+    // Paper start - living entity allow attribute registration
+    @Override
+    public void registerAttribute(Attribute attribute) {
+        Preconditions.checkArgument(attribute != null, "attribute");
+        handle.registerAttribute(CraftAttribute.bukkitToMinecraftHolder(attribute));
+    }
+    // Paper end - living entity allow attribute registration
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index b88077ac1ed99057b8a9361ea550cd2b00040f88..2701e53086f4be07c341cd1e4fcd7a351e77c486 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -754,6 +754,13 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
         return this.getHandle().craftAttributes.getAttribute(attribute);
     }
 
+    // Paper start - living entity allow attribute registration
+    @Override
+    public void registerAttribute(Attribute attribute) {
+        getHandle().craftAttributes.registerAttribute(attribute);
+    }
+    // Paper end - living entity allow attribute registration
+
     @Override
     public void setAI(boolean ai) {
         if (this.getHandle() instanceof Mob) {