Paper/patches/server/0573-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 4d2c02a1e1b4a8fad12894a7439ec7e53a67d97a..c770ee21b7b699522941f6a1584d532001c04082 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
@@ -132,4 +132,12 @@ 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 46c313d581b9af6aa0a48f97ae3cc800a88535f2..07d700382fc356837045c46d320b7b69ad13af68 100644
--- a/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeMap.java
+++ b/src/main/java/org/bukkit/craftbukkit/attribute/CraftAttributeMap.java
@@ -38,6 +38,14 @@ 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(CraftAttributeMap.toMinecraft(attribute));
+    }
+    // Paper end
+
     public static net.minecraft.world.entity.ai.attributes.Attribute toMinecraft(Attribute attribute) {
         return net.minecraft.core.Registry.ATTRIBUTE.get(CraftNamespacedKey.toMinecraft(attribute.getKey()));
     }
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index 6d2acbe95f5ebe41c82d1e99c28f15a46b65a9db..c3d701f58feb503aa073b30df3999e0c7a081a6a 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -688,6 +688,13 @@ 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) {