[Bleeding] Call EntityTargetEvent in many new places.

Adds BUKKIT-5388, BUKKIT-5387, BUKKIT-5386, BUKKIT-5483, BUKKIT-5484.
Fixes BUKKIT-5389.

src/main/java/net/minecraft/server/EntityIronGolem.java

@@ -63,7 +63,12 @@ public class EntityIronGolem extends EntityGolem {
 
     protected void o(Entity entity) {
         if (entity instanceof IMonster && this.aH().nextInt(20) == 0) {
-            this.setGoalTarget((EntityLiving) entity);
+            // CraftBukkit start
+            org.bukkit.event.entity.EntityTargetLivingEntityEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callEntityTargetLivingEvent(this, (EntityLiving) entity, org.bukkit.event.entity.EntityTargetEvent.TargetReason.COLLISION);
+            if (!event.isCancelled()) {
+                this.setGoalTarget(((org.bukkit.craftbukkit.entity.CraftLivingEntity) event.getTarget()).getHandle());
+            }
+            // CraftBukkit end
         }
 
         super.o(entity);

src/main/java/net/minecraft/server/EntityPigZombie.java

@@ -83,22 +83,20 @@ public class EntityPigZombie extends EntityZombie {
                     if (entity1 instanceof EntityPigZombie) {
                         EntityPigZombie entitypigzombie = (EntityPigZombie) entity1;
 
-                        entitypigzombie.c(entity);
+                        entitypigzombie.c(entity, EntityTargetEvent.TargetReason.PIG_ZOMBIE_TARGET);
                     }
                 }
 
-                this.c(entity);
+                this.c(entity, EntityTargetEvent.TargetReason.TARGET_ATTACKED_ENTITY);
             }
 
             return super.damageEntity(damagesource, f);
         }
     }
 
-    private void c(Entity entity) {
+    // CraftBukkit start
-        // CraftBukkit start
+    private void c(Entity entity, EntityTargetEvent.TargetReason reason) { // add TargetReason
-        org.bukkit.entity.Entity bukkitTarget = entity == null ? null : entity.getBukkitEntity();
+        EntityTargetEvent event = new EntityTargetEvent(this.getBukkitEntity(), entity.getBukkitEntity(), reason);
-
-        EntityTargetEvent event = new EntityTargetEvent(this.getBukkitEntity(), bukkitTarget, EntityTargetEvent.TargetReason.PIG_ZOMBIE_TARGET);
         this.world.getServer().getPluginManager().callEvent(event);
 
         if (event.isCancelled()) {

src/main/java/net/minecraft/server/EntityWolf.java

@@ -1,5 +1,10 @@
 package net.minecraft.server;
 
+// CraftBukkit start
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+import org.bukkit.event.entity.EntityTargetEvent.TargetReason;
+// CraftBukkit end
+
 public class EntityWolf extends EntityTameableAnimal {
 
     private float bq;
@@ -236,6 +241,11 @@ public class EntityWolf extends EntityTameableAnimal {
                 this.bc = false;
                 this.setPathEntity((PathEntity) null);
                 this.setTarget((Entity) null);
+                // CraftBukkit start
+                if (this.getGoalTarget() != null) {
+                    CraftEventFactory.callEntityTargetEvent(this, null, TargetReason.FORGOT_TARGET);
+                }
+                // CraftBukkit end
                 this.setGoalTarget((EntityLiving) null);
             }
         } else if (itemstack != null && itemstack.getItem() == Items.BONE && !this.isAngry()) {
@@ -249,9 +259,14 @@ public class EntityWolf extends EntityTameableAnimal {
 
             if (!this.world.isStatic) {
                 // CraftBukkit - added event call and isCancelled check.
-                if (this.random.nextInt(3) == 0 && !org.bukkit.craftbukkit.event.CraftEventFactory.callEntityTameEvent(this, entityhuman).isCancelled()) {
+                if (this.random.nextInt(3) == 0 && !CraftEventFactory.callEntityTameEvent(this, entityhuman).isCancelled()) {
                     this.setTamed(true);
                     this.setPathEntity((PathEntity) null);
+                    // CraftBukkit start
+                    if (this.getGoalTarget() != null) {
+                        CraftEventFactory.callEntityTargetEvent(this, null, TargetReason.FORGOT_TARGET);
+                    }
+                    // CraftBukkit end
                     this.setGoalTarget((EntityLiving) null);
                     this.bp.setSitting(true);
                     this.setHealth(this.getMaxHealth()); // CraftBukkit - 20.0 -> getMaxHealth()

src/main/java/net/minecraft/server/EntityZombie.java

@@ -10,6 +10,7 @@ import org.bukkit.craftbukkit.entity.CraftLivingEntity;
 import org.bukkit.event.entity.CreatureSpawnEvent;
 import org.bukkit.event.entity.EntityCombustByEntityEvent;
 import org.bukkit.event.entity.EntityCombustEvent;
+import org.bukkit.event.entity.EntityTargetEvent;
 //CraftBukkit end
 
 public class EntityZombie extends EntityMonster {
@@ -188,7 +189,13 @@ public class EntityZombie extends EntityMonster {
                         entityzombie.setPosition((double) i1, (double) j1, (double) k1);
                         if (this.world.b(entityzombie.boundingBox) && this.world.getCubes(entityzombie, entityzombie.boundingBox).isEmpty() && !this.world.containsLiquid(entityzombie.boundingBox)) {
                             this.world.addEntity(entityzombie, CreatureSpawnEvent.SpawnReason.REINFORCEMENTS); // CraftBukkit
-                            entityzombie.setGoalTarget(entityliving);
+                            // CraftBukkit start - call EntityTargetEvent
+                            org.bukkit.event.entity.EntityTargetLivingEntityEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callEntityTargetLivingEvent(entityzombie, entityliving, EntityTargetEvent.TargetReason.REINFORCEMENT_TARGET);
+                            entityliving = ((org.bukkit.craftbukkit.entity.CraftLivingEntity) event.getTarget()).getHandle();
+                            if (!event.isCancelled()) {
+                                entityzombie.setGoalTarget(entityliving);
+                            }
+                            // CraftBukkit end
                             entityzombie.a((GroupDataEntity) null);
                             this.getAttributeInstance(bp).a(new AttributeModifier("Zombie reinforcement caller charge", -0.05000000074505806D, 0));
                             entityzombie.getAttributeInstance(bp).a(new AttributeModifier("Zombie reinforcement callee charge", -0.05000000074505806D, 0));

src/main/java/net/minecraft/server/PathfinderGoalHurtByTarget.java

@@ -32,7 +32,13 @@ public class PathfinderGoalHurtByTarget extends PathfinderGoalTarget {
                 EntityCreature entitycreature = (EntityCreature) iterator.next();
 
                 if (this.c != entitycreature && entitycreature.getGoalTarget() == null && !entitycreature.c(this.c.getLastDamager())) {
-                    entitycreature.setGoalTarget(this.c.getLastDamager());
+                    // CraftBukkit start - call EntityTargetEvent
+                    org.bukkit.event.entity.EntityTargetLivingEntityEvent event = org.bukkit.craftbukkit.event.CraftEventFactory.callEntityTargetLivingEvent(entitycreature, this.c.getLastDamager(), org.bukkit.event.entity.EntityTargetEvent.TargetReason.TARGET_ATTACKED_NEARBY_ENTITY);
+                    if (event.isCancelled()) {
+                        continue;
+                    }
+                    entitycreature.setGoalTarget(event.getTarget() == null ? null : ((org.bukkit.craftbukkit.entity.CraftLivingEntity) event.getTarget()).getHandle());
+                    // CraftBukkit end
                 }
             }
         }

src/main/java/net/minecraft/server/PathfinderGoalOcelotAttack.java

@@ -1,5 +1,7 @@
 package net.minecraft.server;
 
+import org.bukkit.event.entity.EntityTargetEvent; // CraftBukkit
+
 public class PathfinderGoalOcelotAttack extends PathfinderGoal {
 
     World a;
@@ -29,6 +31,10 @@ public class PathfinderGoalOcelotAttack extends PathfinderGoal {
     }
 
     public void d() {
+        // CraftBukkit start
+        EntityTargetEvent.TargetReason reason = this.c.isAlive() ? EntityTargetEvent.TargetReason.FORGOT_TARGET : EntityTargetEvent.TargetReason.TARGET_DIED;
+        org.bukkit.craftbukkit.event.CraftEventFactory.callEntityTargetEvent(this.c, null, reason);
+        // CraftBukkit end
         this.c = null;
         this.b.getNavigation().h();
     }