using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using DG.Tweening;

public class Operation: MonoBehaviour
{
    public GameObject allBead;
    public List<float> startFloat;


    private List<Vector3> v3;
    private float moveRange = 100;//珠子移動範圍
    private Transform ParentTF;
    
 
private List<float> stopY_V3=new List<float>();//點選珠子的時候，就確定好，珠子停止Y的位置
    private List<Transform> moveBead=new List<Transform>();//哪些珠子需要移動
    private bool isUp=true;
    private float startY;//用來判斷是上、下撥珠子；
 
    private Vector2 V2Delta;
    private float start_mouse_y;

    private
 
 void Start() {
        for(int i = 0; i < allBead.transform.childCount; i++) {
            Transform tf = allBead.transform.GetChild(i).transform;
            for (int j=0;j< tf.childCount; j++) {
                GameObject obj = tf.GetChild(j).gameObject;
                EventTriggerListener.Get(obj).onDown 
 
= onDown;
                EventTriggerListener.Get(obj).onDrag = onDrag;
                EventTriggerListener.Get(obj).onDragOut = onDragOut;
         //       EventTriggerListener.Get(obj).onClick = onClick;
                if (i==0)
                startFloat.Add(obj.transform.localPosition.y);
            }
        }

    }
    void onDown(GameObject sender) {
        startY = sender.transform.localPosition.y;
        start_mouse_y = Input.mousePosition.y;
    }
    void onDrag(GameObject sender, Vector2 delta) {
        float differMouseY = Input.mousePosition.y - start_mouse_y;//整數為上撥珠子，負數為下撥珠子

        ParentTF = sender.transform.parent;//此珠子的父級



        //0-1是上面兩個珠子的操作
        for (int k = 0; k < 2; k++) {
            if (sender.name == ParentTF.GetChild(k).name) {
                V2Delta = delta;
                if (differMouseY > 0) {
                    UpBead(0, k,"up2");//往上撥珠子
                } else if (differMouseY < 0) {
                    DownBead(k, 1, "up2");//往下撥珠子
                    print("往下操作");
                }

            }
        }


        //--------------------------------------------------------------------------------------------------------------
        //2-6是下面五個珠子的操作
        for (int i = 2; i < ParentTF.childCount; i++) {
            if (sender.name == ParentTF.GetChild(i).name) {
                V2Delta = delta;
                if (differMouseY > 0) {
                  UpBead(2, i,"down5");//往上撥珠子
                } else if (differMouseY < 0) {
                    DownBead(i, 6, "down5");//往下撥珠子
                }
            }
        }
    }

    //往上撥珠子
    void UpBead(int startNum,int stopNum ,string str) {
     
        for (int j = startNum; j <= stopNum; j++) {
            Vector3 pos = ParentTF.GetChild(j).transform.localPosition;
            pos.y += V2Delta.y;
            if (str == "up2") {
                if (pos.y < startFloat[j]) {
                    ParentTF.GetChild(j).transform.localPosition = pos;
                    addList(j, stopNum);
                }
            } else if (str == "down5") {
                if (pos.y < startFloat[j] + moveRange) {
                    ParentTF.GetChild(j).transform.localPosition = pos;
                    addList(j, stopNum);
                }
            }
        }
    }
    //往下撥珠子
    void DownBead(int startNum, int stopNum, string str) {
        for (int j = startNum; j <= stopNum; j++) {
            Vector3 pos = ParentTF.GetChild(j).transform.localPosition;
            pos.y += V2Delta.y;
            if (str == "up2") {
                if (pos.y > startFloat[j] - moveRange) {
                    ParentTF.GetChild(j).transform.localPosition = pos;
                    addList(j, stopNum);
                }
            } else if (str == "down5") {
                if (pos.y > startFloat[j]) {
                    ParentTF.GetChild(j).transform.localPosition = pos;
                    addList(j, stopNum);
                }
            }
        }
    }
    void addList(int num,int stopNum) {
        if (isUp) {
            stopY_V3.Add(startFloat[num] + moveRange);
            moveBead.Add(ParentTF.GetChild(num));
            if (num == stopNum)
                isUp = false;
        }
    }
    void onDragOut(GameObject sender) {
        float differnece = sender.transform.localPosition.y - startY;        
        for (int i=0;i< moveBead.Count; i++) {
            if (differnece > 0) {
                if (differnece >= 20) {

                                        //“Bead1”和“Bead2”是算盤上面兩個珠子
                    if (sender.name == "Bead1" || sender.name == "Bead2") {
                        moveBead[i].DOLocalMoveY(stopY_V3[i] - moveRange, 0.1f);
                        print("2上撥停上");
                    } else {
                        moveBead[i].DOLocalMoveY(stopY_V3[i], 0.1f);
                        print("5上撥停上");
                    }
                } else {

                    if (sender.name == "Bead1" || sender.name == "Bead2") {
                        moveBead[i].DOLocalMoveY(stopY_V3[i] - moveRange*2, 0.1f);
                        print("2上撥停下");
                    } else {
                        moveBead[i].DOLocalMoveY(stopY_V3[i] - moveRange, 0.1f);
                        print("5上撥停下");
                    }
                }
            }else if (differnece < 0) {
                if (Mathf.Abs(differnece) >= 20) {//所有的珠子往下撥
                    //“Bead1”和“Bead2”是算盤上面兩個珠子
                    if (sender.name== "Bead1"|| sender.name == "Bead2") {
                       moveBead[i].DOLocalMoveY(stopY_V3[i] - moveRange*2, 0.1f);//本來這個地方 應該-moveRange一個，但是上面+moveRange一個，所有要-2個moveRange
                    } else {
                        moveBead[i].DOLocalMoveY(stopY_V3[i] - moveRange, 0.1f);
                    }
                  
                } else {
                    if (sender.name == "Bead1" || sender.name == "Bead2") {
                        moveBead[i].DOLocalMoveY(stopY_V3[i] - moveRange, 0.1f);
                    } else {
                        moveBead[i].DOLocalMoveY(stopY_V3[i], 0.1f);
                    }
                   
                }
            }

        }
        isUp = true;
        moveBead.Clear();
        stopY_V3.Clear();
    }
    
}