C#利用控件拖拽技术制作拼图游戏

主要实现的功能：

1.程序附带多张拼图随机拼图。
2.可手动添加拼图。
3.游戏成功判断。
4.30秒超时判断。

Puzzle.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace Puzzle
{
  public partial class Puzzle : Form
  {
    //图片列表
    PictureBox[] pictureList = null;
    //图片位置字典
    SortedDictionary<string, Bitmap> pictureLocationDict = new SortedDictionary<string, Bitmap>();
    //Location List
    Point[] pointList = null;
    //图片控件字典
    SortedDictionary<string, PictureBox> pictureBoxLocationDict = new SortedDictionary<string, PictureBox>();
    //拼图时间
    int second = 0;
    //所拖拽的图片
    PictureBox currentPictureBox = null;
    //被迫需要移动的图片
    PictureBox haveToPictureBox = null;
    //原位置
    Point oldLocation = Point.Empty;
    //新位置
    Point newLocation = Point.Empty;
    //鼠标按下坐标（control控件的相对坐标）
    Point mouseDownPoint = Point.Empty;
    //显示拖动效果的矩形
    Rectangle rect = Rectangle.Empty;
    //是否正在拖拽
    bool isDrag = false;

    public Puzzle()
    {
      InitializeComponent();
      InitGame();
    }

    /// <summary>
    /// 初始化游戏资源
    /// </summary>
    public void InitGame()
    {
      pictureList = new PictureBox[9] { pictureBox1, pictureBox2, pictureBox3, pictureBox4, pictureBox5, pictureBox6, pictureBox7, pictureBox8, pictureBox9 };
      pointList = new Point[9] { new Point(0, 0), new Point(100, 0), new Point(200, 0), new Point(0, 100), new Point(100, 100), new Point(200, 100), new Point(0, 200), new Point(100, 200), new Point(200, 200) };
      if (!Directory.Exists(Application.StartupPath.ToString() + "\\Picture"))
      {
        Directory.CreateDirectory(Application.StartupPath.ToString() + "\\Picture");
        Properties.Resources.默认.Save(Application.StartupPath.ToString() + "\\Picture\\1.jpg");
        Properties.Resources._1.Save(Application.StartupPath.ToString() + "\\Picture\\2.jpg");
        Properties.Resources._2.Save(Application.StartupPath.ToString() + "\\Picture\\3.jpg");
        Properties.Resources._3.Save(Application.StartupPath.ToString() + "\\Picture\\4.jpg");
        Properties.Resources._4.Save(Application.StartupPath.ToString() + "\\Picture\\5.jpg");
        Properties.Resources.成功.Save(Application.StartupPath.ToString() + "\\Picture\\6.jpg");
        Properties.Resources.欢呼.Save(Application.StartupPath.ToString() + "\\Picture\\7.jpg");
      }
      Random r = new Random();
      int i = r.Next(7);
      Flow(Application.StartupPath.ToString() + "\\Picture\\"+i.ToString()+".jpg");
    }

    private void Puzzle_Paint(object sender, PaintEventArgs e)
    {
      if (rect != Rectangle.Empty)
      {
        if (isDrag)
        {
          e.Graphics.DrawRectangle(Pens.White, rect);
        }
        else
        {
          e.Graphics.DrawRectangle(new Pen(this.BackColor), rect);
        }
      }
    }

    /// <summary>
    /// 不好用
    /// </summary>
    /// <returns></returns>
    public PictureBox GetPictureBoxByLocation()
    {
      PictureBox pic = null;
      if (this.ActiveControl.Name.Contains("pictureBox"))
      {
        pic = (PictureBox)this.ActiveControl;
      }
      return pic;

    }

    public PictureBox GetPictureBoxByLocation(MouseEventArgs e)
    {
      PictureBox pic = null;
      foreach (PictureBox item in pictureList)
      {
        if (e.Location.X > item.Location.X && e.Location.Y > item.Location.Y && item.Location.X + 100 > e.Location.X && item.Location.Y + 100 > e.Location.X)
        {
          pic = item;
        }
      }
      return pic;
    }

    public PictureBox GetPictureBoxByLocation(int x,int y)
    {
      PictureBox pic = null;
      foreach (PictureBox item in pictureList)
      {
        if (x> item.Location.X && y > item.Location.Y && item.Location.X + 100 > x && item.Location.Y + 100 > y)
        {
          pic = item;
        }
      }
      return pic;
    }

    /// <summary>
    /// 通过hashcode获取picture，用mouseeventargs之后获取相对于picture的坐标不是相对窗体
    /// </summary>
    /// <param name="hascode"></param>
    /// <returns></returns>
    public PictureBox GetPictureBoxByHashCode(string hascode)
    {
      PictureBox pic = null;
      foreach (PictureBox item in pictureList)
      {
        if (hascode == item.GetHashCode().ToString())
        {
          pic = item;
        }
      }
      return pic;
    }

    private void pictureBox_MouseDown(object sender, MouseEventArgs e)
    {
      oldLocation = new Point(e.X, e.Y);
      currentPictureBox = GetPictureBoxByHashCode(sender.GetHashCode().ToString());
      MoseDown(currentPictureBox, sender, e);
    }

    public void MoseDown(PictureBox pic, object sender, MouseEventArgs e)
    {
      if (e.Button == MouseButtons.Left)
      {
        oldLocation = e.Location;
        rect = pic.Bounds;
      }
    }

    private void pictureBox_MouseMove(object sender, MouseEventArgs e)
    {
      if (e.Button == MouseButtons.Left)
      {
        isDrag = true;
        rect.Location = getPointToForm(new Point(e.Location.X - oldLocation.X, e.Location.Y - oldLocation.Y));
        this.Refresh();

      }
    }

    private void reset()
    {
      mouseDownPoint = Point.Empty;
      rect = Rectangle.Empty;
      isDrag = false;
    }

    private Point getPointToForm(Point p)
    {
      return this.PointToClient(pictureBox1.PointToScreen(p));
    }

    private void pictureBox_MouseUp(object sender, MouseEventArgs e)
    {
      oldLocation = new Point(currentPictureBox.Location.X, currentPictureBox.Location.Y);
      if (oldLocation.X + e.X > 300 || oldLocation.Y + e.Y > 300||oldLocation.X + e.X < 0 || oldLocation.Y + e.Y < 0)
      {
        return;
      }
      haveToPictureBox = GetPictureBoxByLocation(oldLocation.X + e.X, oldLocation.Y + e.Y);
      newLocation = new Point(haveToPictureBox.Location.X, haveToPictureBox.Location.Y);
      haveToPictureBox.Location = oldLocation;
      PictureMouseUp(currentPictureBox, sender, e);
      if ( Judge())
      {
        lab_result.Text = "成功！";
        //MessageBox.Show("恭喜拼图成功");
      }
    }

    public void PictureMouseUp(PictureBox pic, object sender, MouseEventArgs e)
    {
      if (e.Button == MouseButtons.Left)
      {
        if (isDrag)
        {
          isDrag = false;
          pic.Location = newLocation;
          this.Refresh();
        }
        reset();
      }
    }

    public void ExchangePictureBox(MouseEventArgs e)
    { }

    private void btn_sta_Click(object sender, EventArgs e)
    {
      MessageBox.Show(this.ActiveControl.Name);
    }

    /// <summary>
    /// 初始化
    /// </summary>
    /// <param name="path"></param>
    public void Flow(string path)
    {
      Image bm = CutPicture.Resize(path, 300, 300);
      CutPicture.BitMapList = new List<Bitmap>();
      for (int y = 0; y < 300; y += 100)
      {
        for (int x = 0; x < 300; x += 100)
        {
          //string key = x + "-" + y;
          Bitmap temp = CutPicture.Cut(bm, x, y, 100, 100);
          //pictureLocationDict.Add(key, temp);
          CutPicture.BitMapList.Add(temp);
        }
      }
      ImportBitMap();
    }

    /// <summary>
    /// 打乱数据
    /// </summary>
    /// <param name="pictureArray"></param>
    /// <returns></returns>
    public PictureBox[] DisOrderArray(PictureBox[] pictureArray)
    {
      PictureBox[] tempArray = pictureArray;
      for (int i = tempArray.Length - 1; i > 0; i--)
      {
        Random rand = new Random();
        int p = rand.Next(i);
        PictureBox temp = tempArray[p];
        tempArray[p] = tempArray[i];
        tempArray[i] = temp;
      }
      return tempArray;
    }

    /// <summary>
    /// 判断是否拼图成功
    /// </summary>
    /// <returns></returns>
    public bool Judge()
    {
      bool result = true;
      int i = 0;
      foreach (PictureBox item in pictureList)
      {
        if (item.Location != pointList[i])
        {
          result = false;
        }
        i++;
      }
      return result;
    }

    private void btn_import_Click(object sender, EventArgs e)
    {
      lab_result.Text = "";
      ofd_picture.ShowDialog();
      CutPicture.PicturePath = ofd_picture.FileName;
      Flow(CutPicture.PicturePath);
      CountTime();
    }

    /// <summary>
    /// 计时
    /// </summary>
    public void CountTime()
    {
      lab_time.Text = "0";
      timer1.Start();
    }

    /// <summary>
    /// 给piturebox赋值
    /// </summary>
    public void ImportBitMap()
    {
      try
      {

        int i = 0;// DisOrderArray(pictureList)
        foreach (PictureBox item in pictureList)
        {
          Bitmap temp = CutPicture.BitMapList[i];
          item.Image = temp;
          i++;
        }
        ResetPictureLocation();
      }
      catch (Exception exp)
      {
        Console.WriteLine(exp.Message);
      }

    }

    /// <summary>
    /// 打乱位置列表
    /// </summary>
    /// <returns></returns>
    public Point[] DisOrderLocation()
    {
      Point[] tempArray = (Point[])pointList.Clone();
      for (int i = tempArray.Length - 1; i > 0; i--)
      {
        Random rand = new Random();
        int p = rand.Next(i);
        Point temp = tempArray[p];
        tempArray[p] = tempArray[i];
        tempArray[i] = temp;
      }
      return tempArray;
    }

    /// <summary>
    /// 重新设置图片位置
    /// </summary>
    public void ResetPictureLocation()
    {
      Point[] temp = DisOrderLocation();
      int i = 0;
      foreach (PictureBox item in pictureList)
      {
        item.Location = temp[i];
        i++;
      }
    }

    /// <summary>
    /// 计时，超过30秒停止计时
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void timer1_Tick(object sender, EventArgs e)
    {
      second++;
      lab_time.Text = second.ToString();
      if (second == 30)
      {
        timer1.Stop();
        lab_result.Text = "失败！";
      }
    }

    private void btn_sta_Click_1(object sender, EventArgs e)
    {
      lab_result.Text = "";
      timer1.Start();
    }

  }
}

CutPicture.cs


using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Drawing.Imaging;
using System.Windows.Forms;

namespace Puzzle
{
  class CutPicture
  {
    public static string PicturePath = "";
    public static List<Bitmap> BitMapList = null;
    /// <summary>
    /// 剪切图片
    /// </summary>
    /// <param name="b">图片</param>
    /// <param name="StartX">X坐标</param>
    /// <param name="StartY">Y坐标</param>
    /// <param name="iWidth">宽</param>
    /// <param name="iHeight">高</param>
    /// <returns></returns>
    public static Bitmap Cut(Image b, int StartX, int StartY, int iWidth, int iHeight)
    {
      if (b == null)
      {
        return null;
      }
      int w = b.Width;
      int h = b.Height;
      if (StartX >= w || StartY >= h)
      {
        return null;
      }
      if (StartX + iWidth > w)
      {
        iWidth = w - StartX;
      }
      if (StartY + iHeight > h)
      {
        iHeight = h - StartY;
      }
      try
      {
        Bitmap bmpOut = new Bitmap(iWidth, iHeight, PixelFormat.Format24bppRgb);
        Graphics g = Graphics.FromImage(bmpOut);
        g.DrawImage(b, new Rectangle(0, 0, iWidth, iHeight), new Rectangle(StartX, StartY, iWidth, iHeight), GraphicsUnit.Pixel);
        g.Dispose();
        return bmpOut;
      }
      catch
      {
        return null;
      }
    }

    /// <summary>
    /// 保存图片到根目录的Pictures文件夹下
    /// </summary>
    /// <param name="path">文件路径</param>
    /// <param name="iWidth">调整的宽</param>
    /// <param name="iHeignt">调整的高</param>
    /// <returns></returns>
    public static Image Resize(string path, int iWidth, int iHeignt)
    {
      Image thumbnail = null;
      try
      {
        var img = Image.FromFile(path);
        thumbnail = img.GetThumbnailImage(iWidth, iHeignt, null, IntPtr.Zero);
        thumbnail.Save(Application.StartupPath.ToString() + "\\Picture\\img.jpeg");
      }
      catch (Exception exp)
      {
        Console.WriteLine(exp.Message);
      }
      return thumbnail;
    }

  }
}

mouse_down

private void pictureBox_MouseDown(object sender, MouseEventArgs e)
    {
      oldLocation = new Point(e.X, e.Y);
      currentPictureBox = GetPictureBoxByHashCode(sender.GetHashCode().ToString());
      MoseDown(currentPictureBox, sender, e);
    }

    public void MoseDown(PictureBox pic, object sender, MouseEventArgs e)
    {
      if (e.Button == MouseButtons.Left)
      {
        oldLocation = e.Location;
        rect = pic.Bounds;
      }
    }

mouse_move

private void pictureBox_MouseMove(object sender, MouseEventArgs e)
    {
      if (e.Button == MouseButtons.Left)
      {
        isDrag = true;
        rect.Location = getPointToForm(new Point(e.Location.X - oldLocation.X, e.Location.Y - oldLocation.Y));
        this.Refresh();

      }
    }

mouse_up

private void pictureBox_MouseUp(object sender, MouseEventArgs e)
    {
      oldLocation = new Point(currentPictureBox.Location.X, currentPictureBox.Location.Y);
      if (oldLocation.X + e.X > 300 || oldLocation.Y + e.Y > 300||oldLocation.X + e.X < 0 || oldLocation.Y + e.Y < 0)
      {
        return;
      }
      haveToPictureBox = GetPictureBoxByLocation(oldLocation.X + e.X, oldLocation.Y + e.Y);
      newLocation = new Point(haveToPictureBox.Location.X, haveToPictureBox.Location.Y);
      haveToPictureBox.Location = oldLocation;
      PictureMouseUp(currentPictureBox, sender, e);
      if ( Judge())
      {
        lab_result.Text = "成功！";
        //MessageBox.Show("恭喜拼图成功");
      }
    }

    public void PictureMouseUp(PictureBox pic, object sender, MouseEventArgs e)
    {
      if (e.Button == MouseButtons.Left)
      {
        if (isDrag)
        {
          isDrag = false;
          pic.Location = newLocation;
          this.Refresh();
        }
        reset();
      }
    }

reset

private void reset()
   {
     mouseDownPoint = Point.Empty;
     rect = Rectangle.Empty;
     isDrag = false;
   }

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