Netherhound.java

package com.empireminecraft.features.survival.mobs.uncommon;

import com.empireminecraft.entityai.EntityAIApi;
import com.empireminecraft.features.survival.mobs.CustomMob;
import com.empireminecraft.features.survival.mobs.CustomMobSettings;
import com.empireminecraft.util.Util;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.Sound;
import org.bukkit.World;
import org.bukkit.entity.*;
import org.bukkit.event.EventHandler;
import org.bukkit.event.entity.EntityDeathEvent;
import org.bukkit.event.entity.EntityTameEvent;
import org.bukkit.event.entity.EntityTargetEvent;
import org.bukkit.potion.PotionEffectType;

import java.util.ArrayList;
import java.util.List;

import static com.empireminecraft.features.survival.LootPool.LootItem;
import static com.empireminecraft.config.RareItems.RareDrop.RareDrop;

@CustomMobSettings (
	name = "&cNetherhound",
	key = "NETHERHOUND",
	mobType = EntityType.WOLF,
	minSpawnFromPlayer = 32,
	spawnRate = 10,
	respawnRate = 5,
	bonusXpMin = 1,
	bonusXpMax = 4
)
public class Netherhound extends CustomMob<Wolf> {
	{
		setLootPool(
			LootItem(50, RareDrop(Material.COOKED_BEEF).withRange(3, 8)),
			LootItem(20, RareDrop(Material.NETHER_BRICK_ITEM).withRange(2, 6)),
			LootItem(10, RareDrop(Material.QUARTZ).withRange(3, 15)),
			LootItem(100, RareDrop(Material.SULPHUR).withRange(2, 6))
		);
	}

	@Override
	protected boolean canSpawn(Location loc) {
		World world = loc.getWorld();
		return world.getEnvironment() == World.Environment.NETHER;
	}

	@Override
	protected void onSpawn(Wolf entity) {
		entity.setAngry(true);

		increaseHealth(entity, 4);

		if (getWolfpack(entity, 16).size() < 1) {
			int numSpawn = Util.rand(3, 6);
			for (int i = 0; i < numSpawn; i++) {
				NETHERHOUND.spawn(entity.getLocation());
			}
		}
	}

	@Override
	protected void onInitialize(Wolf entity) {
		makeFlaming(entity);
		EntityAIApi.makeAggressive(entity, 16);
		EntityAIApi.setTargetRange(entity, 16);
		EntityAIApi.setEntityMaxPathfindingRange(entity, 48);
	}

	@EventHandler
	public void onTame(EntityTameEvent event) {
		event.setCancelled(true);
	}

	@EventHandler
	public void onTarget(EntityTargetEvent event) {
		final Entity target = event.getTarget();
		if (target instanceof Player && event.getTarget() != ((Wolf) event.getEntity()).getTarget()) {
			target.getWorld().playSound(target.getLocation(), Sound.WOLF_GROWL, 1, -3);

			if (!cooldownReady(event.getEntity(), "lastHowl", 30)) {
				return;
			}
			Long now = System.currentTimeMillis();

			target.getWorld().playSound(target.getLocation(), Sound.WOLF_HOWL, 6, 0);
			announce(event.getEntity(), 64, "&cNetherhound howls for assistance.");
			enrageWolf((Wolf) event.getEntity());
			Util.setMetadata(event.getEntity(), "lastHowl", now);
			for (final Wolf wolf : getWolfpack((Wolf) event.getEntity(), 128)) {
				Util.setMetadata(wolf, "lastHowl", now);
				wolf.setTarget((LivingEntity) target);
				enrageWolf(wolf);
			}

		}
	}

	public static void enrageWolf(Wolf wolf) {
		makeFlaming(wolf);
		Util.addPotion(wolf, PotionEffectType.SPEED, 20, 2);
		Util.addPotion(wolf, PotionEffectType.INCREASE_DAMAGE, 15, 3);
	}

	@EventHandler
	public void onDeath(EntityDeathEvent event) {
		if (Util.RANDOM.nextInt(100) < 33) {
			final Location loc = event.getEntity().getLocation();
			loc.getWorld().createExplosion(loc.getBlockX(), loc.getBlockY(), loc.getBlockZ(), 1.5F, false, false);
		}
	}

	public static List<Wolf> getWolfpack(Wolf entity, int range) {
		List<Wolf> list = new ArrayList<>(10);
		for (Entity entity1 : entity.getNearbyEntities(range, 32, range)) {
			if (entity1 instanceof Wolf && getType(entity1) == NETHERHOUND) {
				list.add((Wolf) entity1);
			}
		}
		return list;
	}
}