Bukkit-only entity copier

gistfile1.java

        {
            Entity[] sourceEntities = sourceChunk.getEntities();
            for (Entity oent : sourceEntities) {

                Entity nent;
                if (oent instanceof Arrow) {
                    nent = world.spawnArrow(oent.getLocation(), oent.getVelocity(), (float) oent.getVelocity().length(), 0F);
                } else if (oent instanceof FallingBlock) {
                    FallingBlock o = (FallingBlock) oent;
                    nent = world.spawnFallingBlock(oent.getLocation(), o.getBlockId(), o.getBlockData());
                } else if (oent instanceof Item) {
                    Item o = (Item) oent;
                    nent = world.dropItem(oent.getLocation(), o.getItemStack());
                    Item n = (Item) nent;
                    n.setPickupDelay(o.getPickupDelay());
                } else if (oent instanceof LightningStrike) {
                    LightningStrike o = (LightningStrike) oent;
                    if (!o.isEffect()) {
                        nent = world.strikeLightning(o.getLocation());
                    } else {
                        nent = world.strikeLightningEffect(o.getLocation());
                    }
                } else {
                    try {
                        nent = world.spawnEntity(oent.getLocation(), oent.getType());
                    } catch (IllegalArgumentException e) {
                        TemplateWorlds.getInstance().getLogger().warning("Skipping entity of type " + oent.getType() + ": Cannot instantiate via Bukkit API");
                        continue;
                    }
                }

                if (nent instanceof Entity) {
                    Entity o = (Entity) oent;
                    Entity n = (Entity) nent;

                    n.setFallDistance(o.getFallDistance());
                    n.setFireTicks(o.getFireTicks());
                    n.setLastDamageCause(o.getLastDamageCause());
                    //n.setPassenger(o.getPassenger());
                    n.setTicksLived(o.getTicksLived());
                    n.setVelocity(o.getVelocity());

                    // TODO metadata transfer?
                }
                if (nent instanceof Ageable) {
                    Ageable o = (Ageable) oent;
                    Ageable n = (Ageable) nent;
                    n.setAge(o.getAge());
                    n.setBreed(o.canBreed());
                    n.setAgeLock(o.getAgeLock());
                    if (o.isAdult()) {
                        n.setAdult();
                    } else {
                        n.setBaby();
                    }
                }
                if (nent instanceof Boat) {
                    Boat o = (Boat) oent;
                    Boat n = (Boat) nent;
                    n.setMaxSpeed(o.getMaxSpeed());
                    n.setOccupiedDeceleration(o.getOccupiedDeceleration());
                    n.setUnoccupiedDeceleration(o.getUnoccupiedDeceleration());
                    n.setWorkOnLand(o.getWorkOnLand());
                }
                if (nent instanceof Creature) {
                    // NOOP
                    /*
                    Creature o = (Creature) oent;
                    Creature n = (Creature) nent;

                    // n.setTarget(o.getTarget());
                    */
                }
                if (nent instanceof Creeper) {
                    Creeper o = (Creeper) oent;
                    Creeper n = (Creeper) nent;

                    n.setPowered(o.isPowered());
                }
                if (nent instanceof Damageable) {
                    Damageable o = (Damageable) oent;
                    Damageable n = (Damageable) nent;

                    n.setMaxHealth(o.getMaxHealth());
                    n.setHealth(o.getHealth());
                    // TODO healthScale on beta/RB
                }
                if (nent instanceof Enderman) {
                    Enderman o = (Enderman) oent;
                    Enderman n = (Enderman) nent;

                    n.setCarriedMaterial(o.getCarriedMaterial());
                }
                if (nent instanceof ExperienceOrb) {
                    ExperienceOrb o = (ExperienceOrb) oent;
                    ExperienceOrb n = (ExperienceOrb) nent;

                    n.setExperience(o.getExperience());
                }
                if (nent instanceof Explosive) {
                    Explosive o = (Explosive) oent;
                    Explosive n = (Explosive) nent;

                    n.setYield(o.getYield());
                    n.setIsIncendiary(o.isIncendiary());
                }
                if (nent instanceof Fireball) {
                    Fireball o = (Fireball) oent;
                    Fireball n = (Fireball) nent;

                    n.setDirection(o.getDirection());
                }
                if (nent instanceof Firework) {
                    Firework o = (Firework) oent;
                    Firework n = (Firework) nent;

                    n.setFireworkMeta(o.getFireworkMeta());
                }
                if (nent instanceof Fish) {
                    Fish o = (Fish) oent;
                    Fish n = (Fish) nent;

                    n.setBiteChance(o.getBiteChance());
                }
                if (nent instanceof Hanging) {
                    /* NOOP
                    Hanging o = (Hanging) oent;
                    Hanging n = (Hanging) nent;

                     */
                }
                if (nent instanceof Horse) {
                    Horse o = (Horse) oent;
                    Horse n = (Horse) nent;

                    n.setVariant(o.getVariant());
                    n.setColor(o.getColor());
                    n.setStyle(o.getStyle());
                    n.setCarryingChest(o.isCarryingChest());
                    n.setDomestication(o.getDomestication());
                    n.setMaxDomestication(o.getMaxDomestication());
                    n.setJumpStrength(o.getJumpStrength());
                }
                if (nent instanceof IronGolem) {
                    IronGolem o = (IronGolem) oent;
                    IronGolem n = (IronGolem) nent;

                    n.setPlayerCreated(o.isPlayerCreated());
                }
                if (nent instanceof ItemFrame) {
                    ItemFrame o = (ItemFrame) oent;
                    ItemFrame n = (ItemFrame) nent;

                    n.setItem(o.getItem());
                    n.setRotation(o.getRotation());
                    n.setFacingDirection(o.getFacing());
                }
                //if (nent instanceof LeashHitch) { // TODO uncomment @ next beta / RB
                //LeashHitch o = (LeashHitch) oent;
                //LeashHitch n = (LeashHitch) nent;
                //}
                if (nent instanceof LivingEntity) {
                    LivingEntity o = (LivingEntity) oent;
                    LivingEntity n = (LivingEntity) nent;

                    for (PotionEffect eff : o.getActivePotionEffects()) {
                        n.addPotionEffect(eff, true);
                    }
                    n.setCanPickupItems(o.getCanPickupItems());
                    n.setCustomName(o.getCustomName());
                    n.setCustomNameVisible(o.isCustomNameVisible());
                    if (!(nent instanceof HumanEntity)) {
                        EntityEquipment eo = o.getEquipment();
                        EntityEquipment en = n.getEquipment();
                        en.setArmorContents(eo.getArmorContents());
                        en.setItemInHand(eo.getItemInHand());
                        en.setBootsDropChance(eo.getBootsDropChance());
                        en.setChestplateDropChance(eo.getChestplateDropChance());
                        en.setHelmetDropChance(eo.getHelmetDropChance());
                        en.setItemInHandDropChance(eo.getItemInHandDropChance());
                        en.setLeggingsDropChance(eo.getLeggingsDropChance());
                    }
                    n.setLastDamage(o.getLastDamage());
                    //n.setLeashHolder(o.getLeashHolder());
                    n.setMaximumAir(o.getMaximumAir());
                    n.setMaximumNoDamageTicks(o.getMaximumNoDamageTicks());
                    n.setNoDamageTicks(o.getNoDamageTicks());
                    n.setRemainingAir(o.getRemainingAir());
                    n.setRemoveWhenFarAway(o.getRemoveWhenFarAway());
                }
                if (nent instanceof Minecart) {
                    Minecart o = (Minecart) oent;
                    Minecart n = (Minecart) nent;

                    n.setDamage(o.getDamage());
                    n.setDerailedVelocityMod(o.getDerailedVelocityMod());
                    n.setFlyingVelocityMod(o.getFlyingVelocityMod());
                    n.setMaxSpeed(o.getMaxSpeed());
                    n.setSlowWhenEmpty(o.isSlowWhenEmpty());
                }
                if (nent instanceof Ocelot) {
                    Ocelot o = (Ocelot) oent;
                    Ocelot n = (Ocelot) nent;

                    n.setSitting(o.isSitting());
                    n.setCatType(o.getCatType());
                }
                if (nent instanceof Painting) {
                    Painting o = (Painting) oent;
                    Painting n = (Painting) nent;

                    n.setFacingDirection(o.getFacing(), true);
                    n.setArt(o.getArt(), true);
                }
                if (nent instanceof Pig) {
                    Pig o = (Pig) oent;
                    Pig n = (Pig) nent;

                    n.setSaddle(o.hasSaddle());
                }
                if (nent instanceof PigZombie) {
                    PigZombie o = (PigZombie) oent;
                    PigZombie n = (PigZombie) nent;

                    n.setAnger(o.getAnger());
                }
                if (nent instanceof Projectile) {
                    Projectile o = (Projectile) oent;
                    Projectile n = (Projectile) nent;

                    n.setShooter(o.getShooter());
                    n.setBounce(o.doesBounce());
                }
                if (nent instanceof Sheep) {
                    Sheep o = (Sheep) oent;
                    Sheep n = (Sheep) nent;

                    n.setColor(o.getColor());
                    n.setSheared(o.isSheared());
                }
                if (nent instanceof Skeleton) {
                    Skeleton o = (Skeleton) oent;
                    Skeleton n = (Skeleton) nent;

                    n.setSkeletonType(o.getSkeletonType());
                }
                if (nent instanceof Slime) {
                    Slime o = (Slime) oent;
                    Slime n = (Slime) nent;

                    n.setSize(o.getSize());
                }
                if (nent instanceof Tameable) {
                    Tameable o = (Tameable) oent;
                    Tameable n = (Tameable) nent;

                    n.setOwner(o.getOwner());
                    //n.setTamed(o.isTamed());
                }
                if (nent instanceof ThrownPotion) {
                    ThrownPotion o = (ThrownPotion) oent;
                    ThrownPotion n = (ThrownPotion) nent;

                    n.setItem(o.getItem());
                }
                if (nent instanceof TNTPrimed) {
                    TNTPrimed o = (TNTPrimed) oent;
                    TNTPrimed n = (TNTPrimed) nent;

                    n.setFuseTicks(o.getFuseTicks());
                }
                if (nent instanceof Vehicle) {
                    Vehicle o = (Vehicle) oent;
                    Vehicle n = (Vehicle) nent;

                    n.setVelocity(o.getVelocity());
                }
                if (nent instanceof Villager) {
                    Villager o = (Villager) oent;
                    Villager n = (Villager) nent;

                    n.setProfession(o.getProfession());
                }
                if (nent instanceof Wolf) {
                    Wolf o = (Wolf) oent;
                    Wolf n = (Wolf) nent;

                    n.setCollarColor(o.getCollarColor());
                    n.setAngry(o.isAngry());
                    n.setSitting(o.isSitting());
                }
                if (nent instanceof Zombie) {
                    Zombie o = (Zombie) oent;
                    Zombie n = (Zombie) nent;

                    n.setBaby(o.isBaby());
                    n.setVillager(o.isVillager());
                }
            }
        }