using System.Collections.Generic;
using UnityEngine;

public class BattleEffectPlayRule : Singleton<BattleEffectPlayRule>
{
    public List<uint> sortPlayerList = new List<uint>();

    private int limit
    {
        get
        {
            if (SystemSetting.Instance.GetCurrentQualityLevel() == GameQuality.High)
            {
                return 7;
            }
            else if (SystemSetting.Instance.GetCurrentQualityLevel() == GameQuality.Medium)
            {
                return 3;
            }
            else
            {
                return 0;
            }
        }
    }

    public float timeEscape;

    public void Update()
    {
        if (Time.realtimeSinceStartup - timeEscape > .5f)
        {
            GA_Hero _hero = PlayerDatas.Instance.hero;
            if (_hero == null)
            {
                return;
            }

            sortPlayerList.Sort((id1, id2) =>
            {
                GActor _actor1 = GAMgr.Instance.GetBySID(id1);
                GActor _actor2 = GAMgr.Instance.GetBySID(id2);

                float _dis1 = 0f;
                float _dis2 = 0f;
                
                if (_actor1 != null)
                {
                    _dis1 = MathUtility.DistanceSqrtXZ(_hero.Pos, _actor1.Pos);
                }

                if (_actor2 != null)
                {
                    _dis2 = MathUtility.DistanceSqrtXZ(_hero.Pos, _actor2.Pos);
                }

                return _dis2 > _dis1 ? -1 : 1;
            });

            timeEscape = Time.realtimeSinceStartup;
        }
    }

    public bool CanPlay(uint sid)
    {
        GA_Hero _hero = PlayerDatas.Instance.hero;
        if (_hero == null)
        {
            return false;
        }

        // 选中英雄必显示
        if (_hero.SelectTarget != null)
        {
            if (_hero.SelectTarget.ServerInstID == sid)
            {
                return true;
            }
        }

        if (_hero.LockTarget != null)
        {
            if (_hero.LockTarget.ServerInstID == sid)
            {
                return true;
            }
        }

        // 获取传入的玩家在排序后的队列中的索引
        int _index = sortPlayerList.IndexOf(sid);

        // 不存在可能是异常,不播放
        if (_index < 0)
        {
            return false;
        }

        // 在限定的数量内,允许播放
        if (_index < limit)
        {
            return true;
        }

        return false;
    }
}