using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using Game;

// 局部对象池模板
public class UnitPool<T> where T : MonoBehaviour
{
    private Transform mb_vParentTf;                         // 创建对象时的父节点
    private string mb_vPrefabName;                          // 对象预制名称
    private List<T> mb_vObjList;                            // 对象列表

    public int iActivityCount
    {
        get
        {
            int retCount = 0;

            if (mb_vObjList != null)
            {
                for (int i = 0; i < mb_vObjList.Count; i++)
                {
                    if (mb_vObjList[i].gameObject.activeSelf)
                        retCount++;
                }
            }

            return retCount;
        }
    }


    public List<T> vObjList
    {
        get
        {
            if (mb_vObjList == null)
                mb_vObjList = new List<T>();

            return mb_vObjList;
        }
    }

    // 默认构造 需要配合 Init()使用
    public UnitPool() { }

    // 构造 并 Init()
    public UnitPool(Transform tfParent)
    {
        string vPrefabName = typeof(T).FullName;
        this.Init(tfParent, vPrefabName);
    }

    // 构造 并 Init()
    public UnitPool(Transform tfParent, string vPrefabName)
    {
        this.Init(tfParent, vPrefabName);
    }

    // 初始化
    public void Init(Transform tfParent, string vPrefabName)
    {
        mb_vParentTf = tfParent;
        mb_vPrefabName = vPrefabName;
    }

    // 隐藏
    public void Hide()
    {
        for (int i = 0; i < vObjList.Count; i++)
        {
            vObjList[i].gameObject.SetActive(false);
        }
    }

    // 隐藏父节点
    public void HideNode()
    {
        mb_vParentTf.gameObject.SetActive(false);
    }

    // 显示父节点
    public void ShowNode()
    {
        mb_vParentTf.gameObject.SetActive(true);

    }
    // 获取
    public T GetObj(int index)
    {
        if (index < vObjList.Count)
        {
            vObjList[index].gameObject.SetActive(true);
            return vObjList[index];
        }
        string uiName = typeof(T).FullName;
        var strNameAry = uiName.Split('.');
        uiName = strNameAry[strNameAry.Length - 1];

        var uiPath = UIMgr.AllUIPath[uiName];

        GameObject go = UIMgr.Instance.Clone(uiPath, mb_vParentTf);
        go.name = uiName;
        T vObj = go.GetComponent<T>();
        if(vObj == null)
            vObj = go.AddComponent<T>();

        vObjList.Add(vObj);
        return vObj;
    }

    // 获取
    public T GetAnyHide()
    {
        int count = vObjList.Count;
        for (int i = 0; i < count; i++)
        {
            if (!vObjList[i].gameObject.activeSelf)
            {
                vObjList[i].gameObject.SetActive(true);
                return vObjList[i];
            }
        }

        return GetObj(count);
    }


    public void Remove(int index)
    {
        if (index >= vObjList.Count)
            return;

        T vObj = vObjList[index];
        GameObject.Destroy(vObj.gameObject);
        vObjList.RemoveAt(index);
    }

    public void Remove(T obj)
    {
        for (int i = 0; i < vObjList.Count; i++)
        {
            if (vObjList[i] == obj)
            {
                GameObject.Destroy(obj.gameObject);
                vObjList.RemoveAt(i);
                return;
            }
        }
    }

    // 销毁
    public void Destory()
    {
        for (int i = 0; i < vObjList.Count; i++)
        {
            T vObj = vObjList[i];
            GameObject.Destroy(vObj.gameObject);
        }
        vObjList.Clear();
    }
}