using System.Collections.Generic;
using UnityEngine;

namespace XWFramework.ObjectTool
{
    public class SubPool
    {
        List<GameObject> pool;

        GameObject m_prefab;

        Transform m_parent;
        public SubPool(GameObject prefab, Transform parent)
        {
            pool = new List<GameObject>();
            m_prefab = prefab;
            m_parent = parent;
        }

        //取出
        public GameObject Spawn()
        {
            foreach (GameObject obj in pool)
            {
                if (!obj.activeInHierarchy)
                {
                    obj.SetActive(true);
                    return obj;
                }
            }

            GameObject gb = GameObject.Instantiate(m_prefab);
            pool.Add(gb);
            gb.transform.SetParent(m_parent);
            return gb;
        }

        //回收
        public void UnSpawn(GameObject obj)
        {
            if (!pool.Contains(obj))
            {
                pool.Add(obj);
            }
            obj.SetActive(false);
        }

        //回收所有
        public void UnSpawnAll()
        {
            foreach (GameObject obj in pool)
            {
                if (obj.activeInHierarchy)
                {
                    obj.SetActive(false);
                }
            }
        }

        //判断物体是否属于对象池
        public bool Contains(GameObject obj)
        {
            return pool.Contains(obj);
        }
    }
}