using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Linq;

public class GridMange : MonoBehaviour
{
    public Transform PlayerTrans; //Player
    public List<GridElements> Grids = new List<GridElements>(); //所有格子
    public byte[] CurrentIndex = new byte[2];
    public Rect CurrentRect = new Rect();

    Coroutine selfCoroutine = null;
    // Start is called before the first frame update
    void Start()
    {
        Grids = GetComponentsInChildren<GridElements>().ToList();
        selfCoroutine = StartCoroutine(UpdateSelfPosInfo());
    }

    /// <summary>
    /// 获取自身格子信息
    /// </summary>
    void GetSelfGridInfo()
    {
        if (PlayerTrans == null) return;
        Vector2 currentPos = new Vector2(PlayerTrans.position.x,PlayerTrans.position.z);

        for (int i = 0; i < Grids.Count; i++)
        {
            if (Grids[i].MyRect.Contains(currentPos))
            {
                CurrentRect = Grids[i].MyRect;
                CurrentIndex = new byte[] { Grids[i].x_Pos, Grids[i].z_Pos };
                break;
            }
        }
    }


    IEnumerator UpdateSelfPosInfo()
    {
        while (true)
        {
            yield return new WaitForSeconds(1);
            GetSelfGridInfo();
        }
    }

    /// <summary>
    /// 获取对应格子的生成点
    /// </summary>
    /// <param name="coordinate"></param>
    /// <returns></returns>
    public Vector3 GetGridInitPos(byte[] coordinate)
    {
        GridElements elements = Grids.Find(x => x.x_Pos.Equals(coordinate[0]) && x.z_Pos.Equals(coordinate[1]));
        if (elements != null)
        {
            return elements.InitPos.position;
        }
        return Grids[0].InitPos.position;
    }


    private void Reset()
    {
        string sp = "";
        for (int i = 0; i < transform.childCount; i++)
        {
            sp = string.Format("{0}_{1}", sp, transform.GetChild(i).name);
        }
        Debug.Log(sp);

        return;
        GridElements[] childs = GetComponentsInChildren<GridElements>();
        for (int i = 0; i < childs.Length; i++)
        {
            GridElements element = childs[i];

            int e_x = int.Parse(element.name[0].ToString());
            int e_z = int.Parse(element.name[1].ToString());

            for (int j = 0; j < childs.Length; j++)
            {
                GridElements temp = childs[j];

                int chax = Mathf.Abs(int.Parse(temp.name[0].ToString()) - e_x );
                int chaz = Mathf.Abs(int.Parse(temp.name[1].ToString()) - e_z );

                if (chax <= 1 && chaz <= 1)
                {
                    if (element != temp)
                        element.NearGrids.Add(temp);
                }
            }
        }
    }
}