PaperMC/nms-patches/EntityZombie.patch

--- a/net/minecraft/server/EntityZombie.java
+++ b/net/minecraft/server/EntityZombie.java
@@ -4,6 +4,13 @@
 import java.util.List;
 import java.util.UUID;
 
+//CraftBukkit start
+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 {
 
     protected static final IAttribute a = (new AttributeRanged((IAttribute) null, "zombie.spawnReinforcements", 0.0D, 0.0D, 1.0D)).a("Spawn Reinforcements Chance");
@@ -18,6 +25,7 @@
     private boolean bB = false;
     private float bC = -1.0F;
     private float bD;
+    private int lastTick = MinecraftServer.currentTick; // CraftBukkit - add field
 
     public EntityZombie(World world) {
         super(world);
@@ -152,7 +160,14 @@
                 }
 
                 if (flag) {
-                    this.setOnFire(8);
+                    // CraftBukkit start
+                    EntityCombustEvent event = new EntityCombustEvent(this.getBukkitEntity(), 8);
+                    this.world.getServer().getPluginManager().callEvent(event);
+
+                    if (!event.isCancelled()) {
+                        this.setOnFire(event.getDuration());
+                    }
+                    // CraftBukkit end
                 }
             }
         }
@@ -182,8 +197,8 @@
                     if (this.world.getType(new BlockPosition(i1, j1 - 1, k1)).q() && this.world.getLightLevel(new BlockPosition(i1, j1, k1)) < 10) {
                         entityzombie.setPosition((double) i1, (double) j1, (double) k1);
                         if (!this.world.isPlayerNearby((double) i1, (double) j1, (double) k1, 7.0D) && this.world.a(entityzombie.getBoundingBox(), (Entity) entityzombie) && this.world.getCubes(entityzombie, entityzombie.getBoundingBox()).isEmpty() && !this.world.containsLiquid(entityzombie.getBoundingBox())) {
-                            this.world.addEntity(entityzombie);
-                            entityzombie.setGoalTarget(entityliving);
+                            this.world.addEntity(entityzombie, CreatureSpawnEvent.SpawnReason.REINFORCEMENTS); // CraftBukkit
+                            entityzombie.setGoalTarget(entityliving, EntityTargetEvent.TargetReason.REINFORCEMENT_TARGET, true);
                             entityzombie.prepare(this.world.D(new BlockPosition(entityzombie)), (GroupDataEntity) null);
                             this.getAttributeInstance(EntityZombie.a).b(new AttributeModifier("Zombie reinforcement caller charge", -0.05000000074505806D, 0));
                             entityzombie.getAttributeInstance(EntityZombie.a).b(new AttributeModifier("Zombie reinforcement callee charge", -0.05000000074505806D, 0));
@@ -202,6 +217,11 @@
     public void m() {
         if (!this.world.isClientSide && this.isConverting()) {
             int i = this.getConversionTime();
+            // CraftBukkit start - Use wall time instead of ticks for villager conversion
+            int elapsedTicks = MinecraftServer.currentTick - this.lastTick;
+            this.lastTick = MinecraftServer.currentTick;
+            i *= elapsedTicks;
+            // CraftBukkit end
 
             this.bA -= i;
             if (this.bA <= 0) {
@@ -219,7 +239,14 @@
             int i = this.world.getDifficulty().a();
 
             if (this.getItemInMainHand() == null && this.isBurning() && this.random.nextFloat() < (float) i * 0.3F) {
-                entity.setOnFire(2 * i);
+                // CraftBukkit start
+                EntityCombustByEntityEvent event = new EntityCombustByEntityEvent(this.getBukkitEntity(), entity.getBukkitEntity(), 2 * i);
+                this.world.getServer().getPluginManager().callEvent(event);
+
+                if (!event.isCancelled()) {
+                    entity.setOnFire(event.getDuration());
+                }
+                // CraftBukkit end
             }
         }
 
@@ -321,7 +348,7 @@
                 entityzombie.setCustomNameVisible(entityvillager.getCustomNameVisible());
             }
 
-            this.world.addEntity(entityzombie);
+            this.world.addEntity(entityzombie, CreatureSpawnEvent.SpawnReason.INFECTION); // CraftBukkit - add SpawnReason
             this.world.a((EntityHuman) null, 1026, new BlockPosition((int) this.locX, (int) this.locY, (int) this.locZ), 0);
         }
 
@@ -374,7 +401,7 @@
                     entitychicken1.setPositionRotation(this.locX, this.locY, this.locZ, this.yaw, 0.0F);
                     entitychicken1.prepare(difficultydamagescaler, (GroupDataEntity) null);
                     entitychicken1.o(true);
-                    this.world.addEntity(entitychicken1);
+                    this.world.addEntity(entitychicken1, CreatureSpawnEvent.SpawnReason.MOUNT); // CraftBukkit
                     this.startRiding(entitychicken1);
                 }
             }
@@ -458,7 +485,7 @@
             entityvillager.setCustomNameVisible(this.getCustomNameVisible());
         }
 
-        this.world.addEntity(entityvillager);
+        this.world.addEntity(entityvillager, CreatureSpawnEvent.SpawnReason.CURED); // CraftBukkit - add SpawnReason
         entityvillager.addEffect(new MobEffect(MobEffects.CONFUSION, 200, 0));
         this.world.a((EntityHuman) null, 1027, new BlockPosition((int) this.locX, (int) this.locY, (int) this.locZ), 0);
     }
@@ -514,12 +541,16 @@
     }
 
     public void die(DamageSource damagesource) {
-        super.die(damagesource);
+        // super.die(damagesource); // CraftBukkit
         if (damagesource.getEntity() instanceof EntityCreeper && !(this instanceof EntityPigZombie) && ((EntityCreeper) damagesource.getEntity()).isPowered() && ((EntityCreeper) damagesource.getEntity()).canCauseHeadDrop()) {
             ((EntityCreeper) damagesource.getEntity()).setCausedHeadDrop();
-            this.a(new ItemStack(Items.SKULL, 1, 2), 0.0F);
+            // CraftBukkit start
+            // this.a(new ItemStack(Items.SKULL, 1, 2), 0.0F);
+            headDrop = new ItemStack(Items.SKULL, 1, 2);
+            // CraftBukkit end
         }
 
+        super.die(damagesource); // CraftBukkit - moved from above
     }
 
     static class SyntheticClass_1 {    }