using System.Collections;
using System.Collections.Generic;
using Unity.Burst.CompilerServices;
using UnityEngine;

//测量距离
public class RangeFinding : MonoBehaviour
{
    //总控制
    public bool isClbool;
    private Vector3 posOne, posTwo;
    //测量控制
    public bool isOpenDistance;
    private int distanceInt;   //计数控制
    public Transform prefabTransform;  //测量的预制体
    private Transform myDistanceObj;
    public Transform allCLParentTransform;  //所有预制体生成的父节点

    protected SorghumController Sorg_posOne;
    protected SorghumController Sorg_posTwo;

    // Start is called before the first frame update
    void Start()
    {

    }

    private void OnDisable()
    {
        while (allCLParentTransform.childCount > 0)
        {
            DestroyImmediate(allCLParentTransform.GetChild(0).gameObject);
        }
    }

    // Update is called once per frame
    void Update()
    {
        if (isClbool)
        {
            try
            {
                if (Input.GetMouseButtonDown(0))
                {
                    Ray ray1 = Camera.main.ScreenPointToRay(Input.mousePosition);
                    RaycastHit hit1;
                    if (Physics.Raycast(ray1, out hit1, 1000))
                    {
                        if (hit1.collider.gameObject.GetComponent<SorghumController>() == null)
                            return;
                        posOne = Input.mousePosition;

                    }
                    else
                    {
                        return;
                    }
                }
                Ray ray2 = Camera.main.ScreenPointToRay(Input.mousePosition);
                RaycastHit hit2;

                //距离
                if (isOpenDistance)
                {
                    if (Input.GetMouseButtonUp(0))
                    {
                        
                        posTwo = Input.mousePosition;
                        if (Physics.Raycast(ray2, out hit2, 1000))
                        {
                            if (hit2.collider.gameObject.GetComponent<SorghumController>() == null)
                                return;

                            if (distanceInt == 0)
                            {
                                if (allCLParentTransform.childCount > 0)
                                {
                                    while (allCLParentTransform.childCount > 0)
                                    {
                                        DestroyImmediate(allCLParentTransform.GetChild(0).gameObject);
                                    }
                                    Sorg_posOne = null;
                                    Sorg_posTwo = null;
                                }

                                Sorg_posOne = hit2.collider.gameObject.GetComponent<SorghumController>();

                                distanceInt++;
                                //鼠标点击克隆物体
                                myDistanceObj = Instantiate(prefabTransform, allCLParentTransform);
                                // transform.TransformPoint(Prefab,hit.poit, Quaternion.identity);
                                myDistanceObj.transform.GetChild(0).position = hit2.point;

                            }
                            else
                            {
                                Sorg_posTwo = hit2.collider.gameObject.GetComponent<SorghumController>();

                                if (Sorg_posOne == Sorg_posTwo)
                                {
                                    Transform low_P = Sorg_posOne.transform.Find("高粱/lowPoint");
                                    Transform high_P = Sorg_posOne.transform.Find("高粱/highPoint");
                                    myDistanceObj.transform.GetChild(0).position = low_P.position;
                                    myDistanceObj.transform.GetChild(1).position = high_P.position;
                                }
                                else
                                {

                                    Transform low_P = Sorg_posTwo.transform.Find("高粱/highPoint");
                                    Transform high_P = Sorg_posOne.transform.Find("高粱/highPoint");
                                    myDistanceObj.transform.GetChild(0).position = low_P.position;
                                    myDistanceObj.transform.GetChild(1).position = high_P.position;
                                }
                                //isOpenJL = false;
                                distanceInt = 0;


                                
                            }

                        }
                        else
                        { 
                            return ;
                        }
                    }
                    if (distanceInt > 0)
                    {
                        if (Physics.Raycast(ray2, out hit2, 1000))
                        {

                            myDistanceObj.transform.GetChild(1).position = hit2.point;
                        }
                    }
                }
            }
            catch (System.Exception e)
            { 
                Debug.LogException(e);
            }
        }
    }
}