CONF WITH EVENT

	@EventHandler
	public void onDeathPigman(EntityDeathEvent e) {
		Random random = new Random();
		int chance = random.nextInt(99);
		EntityDamageEvent.DamageCause cause = e.getEntity().getLastDamageCause().getCause();
		if (e.getEntityType() == EntityType.PIG_ZOMBIE) {
			if ((cause == EntityDamageEvent.DamageCause.ENTITY_ATTACK
					|| cause == EntityDamageEvent.DamageCause.PROJECTILE || cause == EntityDamageEvent.DamageCause.FALL
					|| cause == EntityDamageEvent.DamageCause.FIRE || cause == EntityDamageEvent.DamageCause.FIRE_TICK
					|| cause == EntityDamageEvent.DamageCause.LAVA)) {
				if (chance <= this.getConfig().getInt("Mobs.ZombiePigman.Chance")) {
					List<String> drops = this.getConfig().getStringList("Mobs.ZombiePigman.Drop");
					for (String drop : drops) {
						drop.toUpperCase();
						e.getDrops().add(new ItemStack(Material.valueOf(drop.toUpperCase()), 1));
					}

				}
			}
		}
	}

I HAVE ONE FOR EACH MOB ^^



CONFIG.YML

Mobs:
 Zombie:
    Drop:
     - Air
     - Emerald
     - Golden_Apple
     - Diamond
    Chance: 99
 Skeleton:
    Drop:
     - Air
     - Diamond
    Chance: 45
 Blaze:
    Drop:
     - Air
     - Diamond
    Chance: 45
 Creeper:
    Drop:
     - Air
     - Diamond
    Chance: 45
 IronGolem:
    Drop:
     - Air
     - Diamond
    Chance: 45
 Spider:
    Drop:
     - Air
     - Diamond
    Chance: 45
 ZombiePigman:
    Drop:
     - Air
     - Diamond
    Chance: 45
 Cow:
    Drop:
     - Air
     - Diamond
    Chance: 45
 Chicken:
    Drop:
     - Air
     - Diamond
    Chance: 45
 Pig:
    Drop:
     - Air
     - Diamond
    Chance: 45
 Villager:
    Drop:
     - Air
     - Diamond
    Chance: 45
 Wolf:
    Drop:
     - Air
     - Diamond
    Chance: 45
 Enderman:
    Drop:
     - Air
     - Diamond
    Chance: 45