UGUI实现拼图游戏

using UnityEngine;
public class GameManager
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	/// <summary>
	/// Randoms the array.
	/// </summary>
	static public void RandomArray(Sprite[] sprites)
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		for (int i = 0; i < sprites.Length; i++)
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			//随机抽取数字中的一个位置，并将这张图片与第i张图片交换.
			int index = Random.Range(i, sprites.Length);
			Sprite temp = sprites[i];
			sprites[i] = sprites[index];
			sprites[index] = temp;
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	/// <summary>
	/// Sets the parent.
	/// </summary>
	static public void SetParent(Transform mine, Transform target, Transform oldParent)
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		//如果检测到图片，则交换父物体并重置位置.
		switch (target.tag)
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			case "Cell":
				mine.SetParent(target.parent);
				target.SetParent(oldParent);
				mine.localPosition = Vector3.zero;
				target.localPosition = Vector3.zero;
				break;
			default:
				mine.SetParent(oldParent);
				mine.localPosition = Vector3.zero;
				break;
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	/// <summary>
	/// Checks is win.
	/// </summary>
	static public bool CheckWin()
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		for (int i = 0; i < ImageCreater._instance.transform.childCount; i++)
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			if (ImageCreater._instance.transform.GetChild(i).name != ImageCreater._instance.transform.GetChild(i).transform.GetChild(0).name)
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				return false;
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		return true;
	｝

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
public class ImageCreater : MonoBehaviour
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	public static ImageCreater _instance;
	//存储裁剪好图片的数组.
	public Sprite[] sprites;
	//格子的预设体.
	public GameObject cellPrefab;
	void Start()
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		_instance = this;
		CreateImages();
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	private void CreateImages()
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		//将图片数组随机排列.
		GameManager.RandomArray(sprites);
		//生产图片.
		for (int i = 0; i < sprites.Length; i++)
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			//通过预设体生成图片.
			GameObject cell = (GameObject)Instantiate(cellPrefab);
			//设置cell的名字方便检测是否完成拼图.
			cell.name = i.ToString();
			//获取cell的子物体.
			Transform image = cell.transform.GetChild(0);
			//设置显示的图片.
			image.GetComponent<Image>().sprite = sprites[i];
			//设置子物体的名称，方便检测是否完成拼图.
			int tempIndex = sprites[i].name.LastIndexOf('_');
			image.name = sprites[i].name.Substring(tempIndex + 1);
			//将Cell设置为Panel的子物体.
			cell.transform.SetParent(this.transform);
			//初始化大小.
			cell.transform.localScale = Vector3.one;
		｝
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using UnityEngine;
using System.Collections;
using UnityEngine.EventSystems;
public class DragOnPic : MonoBehaviour, IBeginDragHandler, IDragHandler, IEndDragHandler
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	//记录下自己的父物体.
	Transform myParent;
	//Panel，使拖拽是显示在最上方.
	Transform tempParent;
	CanvasGroup cg;
	RectTransform rt;
	//记录鼠标位置.
	Vector3 newPosition;
	void Awake()
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		//添加CanvasGroup组件用于在拖拽是忽略自己，从而检测到被交换的图片.
		cg = this.gameObject.AddComponent<CanvasGroup>();
		rt = this.GetComponent<RectTransform>();
		tempParent = GameObject.Find("Canvas").transform;
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	/// <summary>
	/// Raises the begin drag event.
	/// </summary>
	public void OnBeginDrag(PointerEventData eventData)
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		//拖拽开始时记下自己的父物体.
		myParent = transform.parent;
		//拖拽开始时禁用检测.
		cg.blocksRaycasts = false;
		this.transform.SetParent(tempParent);
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	/// <summary>
	/// Raises the drag event.
	/// </summary>
	void IDragHandler.OnDrag(PointerEventData eventData)
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		//推拽是图片跟随鼠标移动.
		RectTransformUtility.ScreenPointToWorldPointInRectangle(rt, Input.mousePosition, eventData.enterEventCamera, out newPosition);
		transform.position = newPosition;
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	/// <summary>
	/// Raises the end drag event.
	/// </summary>
	public void OnEndDrag(PointerEventData eventData)
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		//获取鼠标下面的物体.
		GameObject target = eventData.pointerEnter;
		//如果能检测到物体.
		if (target)
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			GameManager.SetParent(this.transform, target.transform, myParent);
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		else
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			this.transform.SetParent(myParent);
			this.transform.localPosition = Vector3.zero;
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		//拖拽结束时启用检测.
		cg.blocksRaycasts = true;
		//检测是否完成拼图.
		if (GameManager.CheckWin())
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			Debug.Log("Win!!!");
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