Paper/patches/server/0549-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 d5dfb08f550f5644ff5164170d6c16a3b25a3748..7204b973c3ad9239e82355513f6d538107102e48 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
@@ -152,4 +152,12 @@ public class AttributeMap {
         }
 
     }
+
+    // Paper - start
+    public void registerAttribute(Attribute attributeBase) {
+        AttributeInstance attributeModifiable = new AttributeInstance(attributeBase, AttributeInstance::getAttribute);
+        attributes.put(attributeBase, attributeModifiable);
+    }
+    // Paper - end
+
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeMap.java b/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeMap.java
index ea48f1119a940056c37d1d203437bfbfdf13663b..a3f989fd1775adbb84d197c51e22c1889a2f8e18 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
+    @Override
+    public void registerAttribute(Attribute attribute) {
+        Preconditions.checkArgument(attribute != null, "attribute");
+        handle.registerAttribute(CraftAttribute.bukkitToMinecraft(attribute));
+    }
+    // Paper end
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index 810f06b3dc7148f9d71635981b3be79659fd0906..62700f1190bda9cb05514096e426eb3eeb87504c 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -710,6 +710,13 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
         return this.getHandle().craftAttributes.getAttribute(attribute);
     }
 
+    // Paper start
+    @Override
+    public void registerAttribute(Attribute attribute) {
+        getHandle().craftAttributes.registerAttribute(attribute);
+    }
+    // Paper end
+
     @Override
     public void setAI(boolean ai) {
         if (this.getHandle() instanceof Mob) {