using System.Collections.Generic;
using UnityEngine;

public class GenericObjectPool : MonoBehaviour
{
    public static GenericObjectPool Instance;

    [System.Serializable]
    public class Pool
    {
        public string tag;
        public GameObject prefab;
        public int size;
    }

    public List<Pool> pools;
    public Dictionary<string, Queue<GameObject>> poolDictionary;

    private void Awake()
    {
        Instance = this;
        poolDictionary = new Dictionary<string, Queue<GameObject>>();

        foreach (Pool pool in pools)
        {
            Queue<GameObject> objectPool = new Queue<GameObject>();
            for (int i = 0; i < pool.size; i++)
            {
                GameObject obj = Instantiate(pool.prefab);
                obj.SetActive(false); // 꺼둔 상태로 보관
                objectPool.Enqueue(obj);
            }
            poolDictionary.Add(pool.tag, objectPool);
        }
    }

    // ⭐ 몹을 꺼내 쓸 때 호출 (Instantiate 대신 사용)
    public GameObject SpawnFromPool(string tag, Vector3 position, Quaternion rotation)
    {
        if (!poolDictionary.ContainsKey(tag)) return null;

        GameObject objectToSpawn = poolDictionary[tag].Dequeue();
        objectToSpawn.SetActive(true);
        objectToSpawn.transform.position = position;
        objectToSpawn.transform.rotation = rotation;

        poolDictionary[tag].Enqueue(objectToSpawn); // 다시 큐의 끝으로 보냄
        return objectToSpawn;
    }
}