using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Rendering;

namespace Thousandto.Launcher.ExternalLibs
{
    /// <summary>
    ///  标记当前特效为可以产生扭曲力场的特效
    /// </summary>
    public class DistortVfxMarkScript : MonoBehaviour
    {
        //是否需要渲染
        public bool IsOnlyDistort = true;
        //当前render的内容
        private Renderer _render;

        private void Start()
        {
            _render = GetComponent<Renderer>();
            if (_render!=null )
            {
                _render.enabled = !IsOnlyDistort;
                Add(_render);
            }
        }

        private void OnEnable()
        {
            if (_render != null)
            {
                _render.enabled = !IsOnlyDistort;
                Add(_render);
            }
        }

        private void OnDisable()
        {
            Remove(_render);
        }

        private void OnDestroy()
        {
            Remove(_render);
        }

        private void OnValidate()
        {
            if (_render != null)
            {
                _render.enabled = !IsOnlyDistort;
            }
        }
       
        #region // 静态函数
        //定义所有的组件列表
        private static List<Renderer> _allRenders = new List<Renderer>();
        //是否当前Renderer列表是否发生了改变
        private static bool isChanged = false;

        //添加到列表
        private static void Add(Renderer r)
        {
            if (r != null)
            {
                if (_allRenders.IndexOf(r) < 0)
                {
                    _allRenders.Add(r);
                    isChanged = true;
                    Debug.LogError("Add::_allRenders.Count:" + _allRenders.Count);
                }
            }
        }

        //从列表中移除
        private static void Remove(Renderer r)
        {
            if (r != null)
            {
                if (_allRenders.Remove(r))
                {
                    isChanged = true;
                    Debug.LogError("Remove::_allRenders.Count:" + _allRenders.Count);
                }
            }
        }
     
        //获取所有标记的Render组件列表
        public static bool GetAllRenders(out List<Renderer> list)
        {
            list = _allRenders;
            var ret = isChanged;
            isChanged = false;
            return ret;
        }
        #endregion
    }
}