using System.Collections;

 using System.Collections.Generic;

 using UnityEngine;

 using UnityEngine.UI;

 public class GameControl : MonoBehaviour {

     //资源加载路径

     public string spritePath = "Sprites/Teriri";

     //拼图碎片

     public Sprite[] sprites = null;

     //拼图控制（以按钮的形式）

     public Button[] buttons = null;

     //携带网格方块自动布局组件的背景

     public Transform bgTransform = null;

     //碎片预制体

     public GameObject puzzlePrefab = null;

     //用于记录空图片的位置

     public RectTransform nullImage = null;

     //用于获取布局方块的大小，便于调节碎片

     private GridLayoutGroup bgLayout = null;

     //用于记录正确的图片名字相加顺序

     private string correctSpritesNameOrder = null;

     //用于确认按钮化的图片碎片是否正确

     private string spritesNameOrder = null;

     private Sprite remainSprite = null;//用于保存被置空的图片，最后游戏结束时现实出来

     //此函数用于初始化

     private void Start() {

         string theLastSpriteName = null;

         //资源加载

         this.sprites = Resources.LoadAll<Sprite>(this.spritePath);

         this.bgLayout = bgTransform.GetComponent<GridLayoutGroup>();

         List<Sprite> tempSprites = new List<Sprite>();

         //记录正确的精灵名字顺序

         for (int i = ; i < this.sprites.Length; i++) {

             tempSprites.Add(this.sprites[i]);

             this.correctSpritesNameOrder += this.sprites[i].name;

             //记录下最后一张碎片的名字

             if (i == this.sprites.Length - ) {

                 theLastSpriteName = this.sprites[i].name;

             }

         }

         print("正确的图片名字构成顺序：" + this.correctSpritesNameOrder.ToString());

         int spritesLength = this.sprites.Length;

         //Debug.Log(spritesLength);

         for (int i = spritesLength - ; i >= ; i--) {

             //实例化预制体

             GameObject btnInstance = Instantiate(this.puzzlePrefab) as GameObject;

             //获取按钮组件

             Button btn = btnInstance.GetComponent<Button>();

             GameControl self = this;//要保存一下当前的this对象,以免出现this指向错误

             btn.onClick.AddListener(delegate () {

                 self.BtnOnclick(btnInstance.GetComponent<RectTransform>());

             });

             //随机取图片出来放置，达到打乱的效果

             int randomNumber = Random.Range(, tempSprites.Count);

             btnInstance.name = tempSprites[randomNumber].name;

             Image btnInstanceImage = btnInstance.GetComponent<Image>();

             if (btnInstance.name == theLastSpriteName) {

                 //置空，否则打乱

                 this.remainSprite = tempSprites[randomNumber];

                 btnInstanceImage.sprite = null;

                 this.nullImage = btnInstance.GetComponent<RectTransform>();

             } else {

                 //btnInstance.GetComponent<Image>().sprite = tempSprites[randomNumber];

                 btnInstanceImage.sprite = tempSprites[randomNumber];

             }

             //Debug.Log(btnInstanceImage);

             tempSprites.Remove(tempSprites[randomNumber]);

             btnInstance.transform.SetParent(bgTransform);

             btnInstance.GetComponent<RectTransform>().localScale = Vector3.one;

             //Debug.Log(randomNumber + ":" + btnInstance.name);

         }

         this.buttons = this.transform.Find("BackGround").GetComponentsInChildren<Button>();

         ////随机放置一个空图片位置

         //int tempNumber = Random.Range(0, this.buttons.Length);

         //this.remainSprite = buttons[tempNumber].GetComponent<Image>().sprite;//保存被置空的图片

         //this.buttons[tempNumber].GetComponent<Image>().sprite = null;

         //this.nullImage = this.buttons[tempNumber].GetComponent<RectTransform>();

         //设置最右下角的图片为消失的图片

     }

     //拼图按钮点击事件

     private void BtnOnclick(RectTransform btnRect) {

         if (Vector2.Distance(btnRect.anchoredPosition, this.nullImage.anchoredPosition)

                 <= (this.bgLayout.cellSize.x + this.bgLayout.spacing.x)) {

             //print("产生替换");

             //Sprite btnRectSprite = btnRect.GetComponent<Image>().sprite;//获取需要替换的引用

             ////这个空位应该是啥也没有

             //Sprite nullImageSprite = this.nullImage.GetComponent<Image>().sprite;

             Sprite cacheSprite = btnRect.GetComponent<Image>().sprite;//交换前缓存一下图片

             string cacheString = btnRect.gameObject.name;

             btnRect.gameObject.name = this.nullImage.gameObject.name;

             this.nullImage.gameObject.name = cacheString;

             btnRect.GetComponent<Image>().sprite = this.nullImage.GetComponent<Image>().sprite;

             this.nullImage.GetComponent<Image>().sprite = cacheSprite;

             //this.nullImage.GetComponent<Image>().sprite = cacheSprite;

             this.nullImage = btnRect;

             CheckAll();

         }

     }

     //遍历所有图片名字顺序，判断是否完成拼图，结束游戏

     private void CheckAll() {

         this.spritesNameOrder = "";

         this.buttons = this.bgTransform.GetComponentsInChildren<Button>();

         for (int i = ; i < this.buttons.Length; i++) {

             this.spritesNameOrder += this.buttons[i].gameObject.name;

         }

         if (this.spritesNameOrder == this.correctSpritesNameOrder) {

             this.nullImage.GetComponent<Image>().sprite = this.remainSprite;//现实被置空的图片

             Debug.Log("德丽莎天下第一可爱!");

             this.enabled = false;//停止游戏刷新

         }

     }

 }