Bukkit -我如何让一个产卵者产生一个不同于一头猪的实体？

import org.bukkit.Bukkit;
import org.bukkit.Location;
import org.bukkit.World;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.LivingEntity;
import org.bukkit.entity.Player;

public class SpawnDifferentEntity {
    public void spawnDifferentEntity(Player player) {
        World world = player.getWorld();
        Location location = player.getLocation();

        // 创建一个产卵者对象
        LivingEntity spawner = (LivingEntity) world.spawnEntity(location, EntityType.PIG);

        // 生成一个不同于猪的实体
        LivingEntity entity = (LivingEntity) world.spawnEntity(location, EntityType.COW);

        // 将实体添加到产卵者的附近
        entity.teleport(spawner.getLocation().add(1, 0, 0));
    }
}