#if UNITY_EDITOR
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.InputSystem;

public class CmpAreaEditor : MonoBehaviour
{

    public Camera m_Camera;

    public TGS.TerrainGridSystem m_TerrainGridSystem;

    public int m_SelectType = 0;

    public Vector2Int m_CenterPos;
    public List<Vector2Int> m_PointList;

    private bool _lastIsPressedLeft = false;
    private bool _lastIsPressedRight = false;
    private int _fakeCenterCellIndex = 0;

    // Start is called before the first frame update
    void Start()
    {
        var fakeCenterPos = new Vector2Int(8, 20);
        m_CenterPos = fakeCenterPos;
        var centerCellIndex = m_TerrainGridSystem.CellGetIndex(fakeCenterPos.x, fakeCenterPos.y);
        m_TerrainGridSystem.CellSetColor(centerCellIndex, Color.red);
        _fakeCenterCellIndex = centerCellIndex;
    }

    // Update is called once per frame
    void Update()
    {
        {
            var nowIsPressed = Mouse.current.leftButton.isPressed;
            if (nowIsPressed && !_lastIsPressedLeft)
            {
                // 左键按下
                var mousePos = Mouse.current.position.ReadValue();
                // 发射射线
                var ray = m_Camera.ScreenPointToRay(mousePos);
                // 获取碰撞点
                var hitReults = Physics.RaycastAll(ray.origin, ray.direction);
                if (hitReults.Length > 0)
                {
                    var firstHit = hitReults[0];
                    var cell = m_TerrainGridSystem.CellGetAtPosition(firstHit.point, true);
                    var posInt = new Vector2Int(cell.row, cell.column);
                    if (m_PointList.Contains(posInt))
                    {
                        m_PointList.Remove(posInt);
                        m_TerrainGridSystem.CellSetColor(cell, new Color(0, 0, 0, 0));
                    }
                    else
                    {
                        m_PointList.Add(posInt);
                        var cellIndex = m_TerrainGridSystem.CellGetIndex(cell.row, cell.column);
                        if (cellIndex == _fakeCenterCellIndex)
                        {
                            m_TerrainGridSystem.CellSetColor(cell, Color.yellow);
                        }
                        else
                        {
                            m_TerrainGridSystem.CellSetColor(cell, Color.green);
                        }
                    }
                    DebugUtil.LogError("碰撞点格子:" + cell.row + "," + cell.column);

                }
            }
            _lastIsPressedLeft = nowIsPressed;
        }

        {
            var containsCenter = false;
            var nowIsPressed = Mouse.current.rightButton.isPressed;
            if (nowIsPressed && !_lastIsPressedRight)
            {
                var combieStr = "";
                for (var i = 0; i < m_PointList.Count; ++i)
                {
                    var point = m_PointList[i];
                    var offset = point - m_CenterPos;
                    var isLast = i == m_PointList.Count - 1;
                    if (isLast)
                    {
                        combieStr += offset.x + "," + offset.y;
                    }
                    else
                    {
                        combieStr += offset.x + "," + offset.y + ",";
                    }
                    if (point == m_CenterPos)
                    {
                        containsCenter = true;
                    }
                }
                DebugUtil.Log("偏移数据:" + (containsCenter ? "包含中心点" : "不包含中心点"));
                DebugUtil.Log(combieStr);
            }
            _lastIsPressedRight = nowIsPressed;
        }

    }
}
#endif