using UnityEngine;
using System.Collections;
using System;
using System.Collections.Generic;
using UnityEngine.UI;
using UnityEngine.EventSystems;
public class CeJuScript : MonoBehaviour {

   
	void Start () 
    {
        lineRend = GameObject.Find("CeJu").GetComponent<LineRenderer>();
        line_Hight = GameObject.Find("CeJu1").GetComponent<LineRenderer>();
        line_widht = GameObject.Find("CeJu2").GetComponent<LineRenderer>();
        textHight = GameObject.Find("info1").transform.Find("Name").GetComponent<TextMesh>();
        textWidht = GameObject.Find("info2").transform.Find("Name").GetComponent<TextMesh>();
        textMiddle = GameObject.Find("info3").transform.Find("Name").GetComponent<TextMesh>();
        TextH = GameObject.Find("info1").gameObject;
        TextW = GameObject.Find("info2").gameObject;
        TextM = GameObject.Find("info3").gameObject;
        TwoImage = this.gameObject.transform.Find("Template").Find("两点测距").Find("Background").GetComponent<Image>();
        MoreImage = this.gameObject.transform.Find("Template").Find("多点测距").Find("Background").GetComponent<Image>();
        SpaceImage = this.gameObject.transform.Find("Template").Find("空间测距").Find("Background").GetComponent<Image>();
    }
    private GameObject TextH;
    private GameObject TextW;
    private GameObject TextM;
    string info;
    private RaycastHit hit;//射线
    public static Vector3 placementPos2;//第二碰撞点
    public static Vector3 placementPos;//第一碰撞点
    public static Vector3 Pos1_late = new Vector3(0, 0, 0);//第一碰撞点原来的位置
    public static Vector3 Pos2_late = new Vector3(0, 0, 0);//第二碰撞点原来的位置
    public LayerMask Tm_layerMask = -1;
    public static bool Pos2Controller = false;
    private LineRenderer lineRend;
    private int LengthOflineRenderer = 1;
    bool kong_1 = true;
    bool kong_2 = true;
    bool kong_2_1 = true;
    bool kong_3 = true;
    float TheDistance_two;
     DateTime t1, t2;
     private int delta_millisecond = 400;
     List<Vector3> list;
     float LastDistance;
     //public Text TheLableText;
     public Sprite AnXiaSprite;
     public Sprite ZhengChangSprite;

     private Image TwoImage;
     private Image MoreImage;
     private Image SpaceImage;
     void Update()
     {
         Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
         
         if (EventSystem.current.IsPointerOverGameObject() && (Input.GetMouseButtonDown(0)))
         {
             Set();
             return;
         }
         
         if (Physics.Raycast(ray, out hit, Mathf.Infinity, Tm_layerMask))
         {
             if (TheFirt)
             {
                 if (Input.GetMouseButtonDown(0))
                 {
                     if ((placementPos.x == 0 && placementPos.y == 0 && placementPos.z == 0) || !Pos2Controller)
                     {
                         textHight.gameObject.SetActive(true);
                         textWidht.gameObject.SetActive(false);
                         lineRend.SetVertexCount(1);
                         textHight.text = 0+"";
                         placementPos = new Vector3(hit.point.x, hit.point.y, hit.point.z);
                         textHight.gameObject.transform.parent.position = placementPos;
                         kong_1 = false;
                         KONG = true;
                         lineRend.SetPosition(0, placementPos);
                         Pos2Controller = !Pos2Controller;
                         return;
                     }
                     lineRend.SetVertexCount(2);
                     placementPos2 = new Vector3(hit.point.x, hit.point.y, hit.point.z);
                     lineRend.SetPosition(1, placementPos2);
                     if ((placementPos.x != placementPos2.x) && (Pos2_late.x != placementPos2.x) && (Pos1_late.x != placementPos.x) && Pos2Controller)
                     {
                         textWidht.gameObject.SetActive(true);
                         Pos1_late = placementPos;
                         Pos2_late = placementPos2;
                         Pos2Controller = !Pos2Controller;
                         KONG = false;
                         kong_1 = true;
                         textWidht.text = info;
                         textWidht.transform.parent.position = placementPos2;
                     }
                 }
                 if (!kong_1)
                 {
                     float distance = Vector3.Distance(placementPos, hit.point);
                     info = Math.Round(distance, 2).ToString();
                     //TheLableText.text = info;
                 }
             }
             else if (TheSecond)
             {
                 if (Input.GetMouseButtonDown(0))
                 {
                     t2 = DateTime.Now;

                     if (placementPos.x == 0 && placementPos.y == 0 && placementPos.z == 0)
                     {
                         KONG = true;
                         list = new List<Vector3>();
                         textHight.gameObject.SetActive(true);
                         textWidht.gameObject.SetActive(false);
                         lineRend.SetVertexCount(LengthOflineRenderer);
                         placementPos = new Vector3(hit.point.x, hit.point.y, hit.point.z);
                         textHight.text = 0 + "";
                         textHight.gameObject.transform.parent.position = placementPos;
                         lineRend.SetPosition(LengthOflineRenderer-1, placementPos);
                         LengthOflineRenderer++;
                         t1 = DateTime.Now;
                         kong_2 = false;
                         list.Add(placementPos);
                     }
                     else if (t2 - t1 > new TimeSpan(0, 0, 0, 0, delta_millisecond))
                     {

                         if (placementPos.x != placementPos2.x)
                         {
                             lineRend.SetVertexCount(LengthOflineRenderer);
                             placementPos2 = new Vector3(hit.point.x, hit.point.y, hit.point.z);
                             lineRend.SetPosition(LengthOflineRenderer - 1, placementPos2);
                             LengthOflineRenderer++;
                             t1 = t2;
                             list.Add(placementPos2);
                             kong_2 = true;
                             TheDistance_two = 0;
                             for (int i = 0; i < list.Count - 1; i++)
                             {
                                 TheDistance_two += Vector3.Distance(list[i], list[i + 1]);
                             }
                             LastDistance = TheDistance_two;
                             kong_2_1 = false;
                             textWidht.gameObject.SetActive(true);
                             textWidht.text = info;
                             textWidht.gameObject.transform.parent.position = placementPos2;
                         }
                     }
                   
                 }
                 if (!kong_2)
                 {
                     TheDistance_two = Vector3.Distance(placementPos, hit.point);
                     info = Math.Round(TheDistance_two, 2).ToString();
                     //TheLableText.text = info;
                 }
                 if (!kong_2_1)
                 {
                     TheDistance_two = LastDistance + Vector3.Distance(placementPos2, hit.point);
                     info = Math.Round(TheDistance_two, 2).ToString();
                     //TheLableText.text = info;
                 }
             }
             else if (TheThrid)
             {
                 if (Input.GetMouseButtonDown(0))
                 {
                     if ((placementPos.x == 0 && placementPos.y == 0 && placementPos.z == 0) || !Pos2Controller)
                     {
                         textHight.gameObject.SetActive(false);
                         textWidht.gameObject.SetActive(false);
                         textMiddle.gameObject.SetActive(false);
                         lineRend.SetVertexCount(1);
                         line_Hight.SetVertexCount(1);
                         line_widht.SetVertexCount(1);
                         placementPos = new Vector3(hit.point.x, hit.point.y, hit.point.z);
                         kong_3 = false;
                         KONG = true;
                         
                         lineRend.SetPosition(0, placementPos);
                         Pos2Controller = !Pos2Controller;
                         return;
                     }
                     lineRend.SetVertexCount(2);
                     placementPos2 = new Vector3(hit.point.x, hit.point.y, hit.point.z);
                     lineRend.SetPosition(1, placementPos2);
                 
                     if ((placementPos.x != placementPos2.x) && (Pos2_late.x != placementPos2.x) && (Pos1_late.x != placementPos.x) && Pos2Controller)
                     {
                      
                         textHight.gameObject.SetActive(true);
                         textWidht.gameObject.SetActive(true);
                         textMiddle.gameObject.SetActive(true);
                         if (placementPos.y < placementPos2.y)
                         {
                             Vector3 vet = new Vector3(placementPos.x, placementPos2.y, placementPos.z);
                             line_Hight.SetVertexCount(1);
                             line_Hight.SetPosition(0, placementPos);
                             line_Hight.SetVertexCount(2);
                             line_Hight.SetPosition(1, vet);

                             Vector3 vet_ = new Vector3(placementPos2.x, placementPos.y, placementPos2.z);
                             line_widht.SetVertexCount(1);
                             line_widht.SetPosition(0, placementPos);
                             line_widht.SetVertexCount(2);
                             line_widht.SetPosition(1, vet_);

                             float distance_hight = Vector3.Distance(placementPos, vet);
                             string info_hight = Math.Round(distance_hight, 2).ToString();
                             textHight.text = info_hight;
                             textHight.transform.parent.position = vet;

                             float distance_widht = Vector3.Distance(placementPos, vet_);
                             string info_widht = Math.Round(distance_widht, 2).ToString();
                             textWidht.text = info_widht;
                             textWidht.transform.parent.position = vet_;

                             float distance_middle = Vector3.Distance(placementPos, placementPos2);
                             string info_middle = Math.Round(distance_middle, 2).ToString();
                             textMiddle.text = info_middle;
                             textMiddle.transform.parent.position = placementPos2;

                         }
                         else
                         {
                             Vector3 vet = new Vector3(placementPos2.x, placementPos.y, placementPos2.z);
                             line_Hight.SetVertexCount(1);
                             line_Hight.SetPosition(0, placementPos2);
                             line_Hight.SetVertexCount(2);
                             line_Hight.SetPosition(1, vet);

                             Vector3 vet_ = new Vector3(placementPos.x, placementPos2.y, placementPos.z);
                             line_widht.SetVertexCount(1);
                             line_widht.SetPosition(0, placementPos2);
                             line_widht.SetVertexCount(2);
                             line_widht.SetPosition(1, vet_);

                             float distance_hight = Vector3.Distance(placementPos2, vet);
                             string info_hight = Math.Round(distance_hight, 2).ToString();
                             textHight.text = info_hight;
                             textHight.transform.parent.position = vet;

                             float distance_widht = Vector3.Distance(placementPos2, vet_);
                             string info_widht = Math.Round(distance_widht, 2).ToString();
                             textWidht.text = info_widht;
                             textWidht.transform.parent.position = vet_;

                             float distance_middle = Vector3.Distance(placementPos, placementPos2);
                             string info_middle = Math.Round(distance_middle, 2).ToString();
                             textMiddle.text = info_middle;
                             textMiddle.transform.parent.position = placementPos;
                         }
                         Pos2Controller = !Pos2Controller;
                         KONG = false;
                         kong_3 = true;
                         placementPos = Vector3.zero;

                     }
                 }
                 if (!kong_3)
                 {
                     float distance = Vector3.Distance(placementPos, hit.point);
                     info = Math.Round(distance, 2).ToString();
                     //TheLableText.text = info;
                 }

             }
         }
     }
     bool KONG=false;
     bool Thirdkong = false;
    void OnGUI()
    {
        if (KONG)
        {
            float x = Input.mousePosition.x;
            float y = Screen.height - Input.mousePosition.y;
            GUI.Label(new Rect(x - 50, y - 50, 200, 50), info);
        }
        
    }
    bool TheFirt=false;
    bool TheSecond=false;
    bool TheThrid=false;
    bool One = true;
    bool Two = true;
    bool Three = true;
    private LineRenderer line_Hight;
    private LineRenderer line_widht;
    Vector3 TheHight;
    Vector3 TheWidht;
    private TextMesh textHight;
    private TextMesh textWidht;
    private TextMesh textMiddle;

    public void Set()
    {

        TextH.SetActive(false);
        TextW.SetActive(false);
        TextM.SetActive(false);
        KONG = false;
        TheFirt = false;
        TheSecond = false;
        TheThrid = false;
        lineRend.gameObject.SetActive(false);
        line_Hight.gameObject.SetActive(false);
        line_widht.gameObject.SetActive(false);
        Thirdkong = false;
        
        placementPos2 = Vector3.zero;//第二碰撞点
        placementPos = Vector3.zero;//第一碰撞点

        TwoImage.sprite = ZhengChangSprite;
        MoreImage.sprite = ZhengChangSprite;
        SpaceImage.sprite = ZhengChangSprite;
    }
    public void Button(GameObject TheGame)
    {

        TheFirt = false;
        TheSecond = false;
        TheThrid = false;
        lineRend.gameObject.SetActive(false);
        line_Hight.gameObject.SetActive(false);
        line_widht.gameObject.SetActive(false);
        Thirdkong = false;
        TextH.SetActive(true);
        TextW.SetActive(true);
        TextM.SetActive(true);
        textHight.gameObject.SetActive(false);
        textWidht.gameObject.SetActive(false);
        textMiddle.gameObject.SetActive(false);
        placementPos2=Vector3.zero;//第二碰撞点
        placementPos=Vector3.zero;//第一碰撞点

        TwoImage.sprite = ZhengChangSprite;
        MoreImage.sprite = ZhengChangSprite;
        SpaceImage.sprite = ZhengChangSprite;

        if (TheGame.name.Equals("两点测距"))
        {
            if (One)
            {
                TheFirt = true;
                KONG = false;
                One = false;
                Two = true;
                Three = true;
                lineRend.gameObject.SetActive(true);
                lineRend.SetVertexCount(0);
                TwoImage.sprite = AnXiaSprite;
                MoreImage.sprite = ZhengChangSprite;
                SpaceImage.sprite = ZhengChangSprite;
                
            }
            else 
            {
                lineRend.gameObject.SetActive(false);
                One = true;
                KONG = false;
                TwoImage.sprite = ZhengChangSprite;
            }
        }
        else if (TheGame.name.Equals("多点测距"))
        {
            if (Two)
            {
                TheSecond = true;
                KONG = false;
                LengthOflineRenderer = 1;
                placementPos = new Vector3(0, 0, 0);
                TheDistance_two = 0;
                LastDistance = 0;
               
                One = true;
                Two = false;
                Three = true;
                lineRend.gameObject.SetActive(true);
                lineRend.SetVertexCount(0);
                 kong_2 = true;
                 kong_2_1 = true;
                 TwoImage.sprite = ZhengChangSprite;
                 MoreImage.sprite = AnXiaSprite;
                 SpaceImage.sprite = ZhengChangSprite;
            }
            else
            {
                lineRend.gameObject.SetActive(false);
                Two = true;
                KONG = false;
                MoreImage.sprite = ZhengChangSprite;
            }
        }
        else if (TheGame.name.Equals("空间测距"))
        {
            if (Three)
            {
                TheThrid = true;
                KONG = false;
  
                One = true;
                Two = true;
                Three = false;
                lineRend.gameObject.SetActive(true);
                lineRend.SetVertexCount(0);
                line_Hight.SetVertexCount(0);
                line_widht.SetVertexCount(0);
                line_Hight.gameObject.SetActive(true);
                line_widht.gameObject.SetActive(true);
                TwoImage.sprite = ZhengChangSprite;
                MoreImage.sprite = ZhengChangSprite;
                SpaceImage.sprite = AnXiaSprite;

            }
            else
            {
                lineRend.gameObject.SetActive(false);
                Three = true;
                KONG = false;
                line_Hight.gameObject.SetActive(false);
                line_widht.gameObject.SetActive(false);
                SpaceImage.sprite = ZhengChangSprite;
            }
        }
    }
}