PaperMC/paper-server/nms-patches/net/minecraft/world/entity/animal/EntityWolf.patch

--- a/net/minecraft/world/entity/animal/EntityWolf.java
+++ b/net/minecraft/world/entity/animal/EntityWolf.java
@@ -69,6 +69,11 @@
 import net.minecraft.world.level.pathfinder.PathType;
 import net.minecraft.world.phys.Vec3D;
 
+// CraftBukkit start
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.event.entity.EntityTargetEvent.TargetReason;
+// CraftBukkit end
+
 public class EntityWolf extends EntityTameableAnimal implements IEntityAngerable {
 
     private static final DataWatcherObject<Boolean> DATA_INTERESTED_ID = DataWatcher.defineId(EntityWolf.class, DataWatcherRegistry.BOOLEAN);
@@ -126,6 +131,24 @@
         return EntityInsentient.createMobAttributes().add(GenericAttributes.MOVEMENT_SPEED, 0.30000001192092896D).add(GenericAttributes.MAX_HEALTH, 8.0D).add(GenericAttributes.ATTACK_DAMAGE, 2.0D);
     }
 
+    // CraftBukkit - add overriden version
+    @Override
+    public boolean setTarget(EntityLiving entityliving, org.bukkit.event.entity.EntityTargetEvent.TargetReason reason, boolean fire) {
+        if (!super.setTarget(entityliving, reason, fire)) {
+            return false;
+        }
+        entityliving = getTarget();
+        /* // PAIL
+        if (entityliving == null) {
+            this.setAngry(false);
+        } else if (!this.isTamed()) {
+            this.setAngry(true);
+        }
+        */
+        return true;
+    }
+    // CraftBukkit end
+
     @Override
     protected void defineSynchedData() {
         super.defineSynchedData();
@@ -298,7 +321,7 @@
             Entity entity = damagesource.getEntity();
 
             if (!this.level.isClientSide) {
-                this.setOrderedToSit(false);
+                // this.setOrderedToSit(false); // CraftBukkit - moved into EntityLiving.damageEntity(DamageSource, float)
             }
 
             if (entity != null && !(entity instanceof EntityHuman) && !(entity instanceof EntityArrow)) {
@@ -325,7 +348,7 @@
         super.setTame(flag);
         if (flag) {
             this.getAttribute(GenericAttributes.MAX_HEALTH).setBaseValue(20.0D);
-            this.setHealth(20.0F);
+            this.setHealth(this.getMaxHealth()); // CraftBukkit - 20.0 -> getMaxHealth()
         } else {
             this.getAttribute(GenericAttributes.MAX_HEALTH).setBaseValue(8.0D);
         }
@@ -349,7 +372,7 @@
                         itemstack.shrink(1);
                     }
 
-                    this.heal((float) item.getFoodProperties().getNutrition());
+                    this.heal((float) item.getFoodProperties().getNutrition(), org.bukkit.event.entity.EntityRegainHealthEvent.RegainReason.EATING); // CraftBukkit
                     return EnumInteractionResult.SUCCESS;
                 }
 
@@ -360,7 +383,7 @@
                         this.setOrderedToSit(!this.isOrderedToSit());
                         this.jumping = false;
                         this.navigation.stop();
-                        this.setTarget((EntityLiving) null);
+                        this.setTarget((EntityLiving) null, TargetReason.FORGOT_TARGET, true); // CraftBukkit - reason
                         return EnumInteractionResult.SUCCESS;
                     }
 
@@ -382,7 +405,8 @@
                     itemstack.shrink(1);
                 }
 
-                if (this.random.nextInt(3) == 0) {
+                // CraftBukkit - added event call and isCancelled check.
+                if (this.random.nextInt(3) == 0 && !CraftEventFactory.callEntityTameEvent(this, entityhuman).isCancelled()) {
                     this.tame(entityhuman);
                     this.navigation.stop();
                     this.setTarget((EntityLiving) null);