C# 拼图游戏的实战(附demo)

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StreamReader reader = new StreamReader("name.txt");

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StreamWriter writer = new StreamWriter("name.txt", true);
writer.WriteLine(textBox1.Text);
MessageBox.Show("用户注册成功，请进行登录！");
writer.Dispose();

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OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.ShowDialog();//打开文件夹选择图片
pictureBox1.Image = Image.FromFile(openFileDialog1.FileName).GetThumbnailImage(250, 250,new Image.GetThumbnailImageAbort(delegate { return false; }),IntPtr.Zero);//使所选图片的尺寸符合所需大小

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comboBox1.Items.Add("1");
comboBox1.Items.Add("2");
comboBox1.Items.Add("3");
comboBox1.Items.Add("4");

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int Diffcult = int.Parse(comboBox1.Text);
// 根据对应难度初始化数组并给n赋值
switch (Diffcult)
{
    case 1:
        node = new Node[3, 3];
        n = 3;
        break;
    case 2:
        node = new Node[4, 4];
        n = 4;
        break;
    case 3:
        node = new Node[5, 5];
        n = 5;
        break;
    case 4:
        node = new Node[9, 9];
        n = 9;
        break;
}

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public bool JudgePicture()
{
    int count = 0;
    for (int x = 0; x < n; x++)
    {
        for (int y = 0; y < n; y++)
        {
            if (this.node[x, y].num != count)
                return false;
            count++;
        }
    }
    return true;
}

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// 传入图片；单个图片宽，高；拼图界面的x，y长度
public Image Cutpicture(Image fImage,int width,int height,int spacex,int spacey)
{
    // 创建新图片的位图
    Bitmap bitmap = new Bitmap(width, height);
    // 创建绘制区域
    Graphics graphics = Graphics.FromImage(bitmap);
    // 截取所需原图对应区域写入作图区域
    graphics.DrawImage(fImage, 0, 0, new Rectangle(spacex, spacey, width, height), GraphicsUnit.Pixel);
    // 从作图区域生成新图
    Image fgImage = Image.FromHbitmap(bitmap.GetHbitmap());
    return fgImage;	// 返回分割后的图片
}

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// 定义随机数用于打乱切后的图
Random lx = new Random();
Random ly = new Random();
int x = lx.Next(0, n);
int y = ly.Next(0, n);

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// 按钮重排后再picturebox3中显示
private void button3_Click(object sender, EventArgs e)
{
    // 在pictureBox3中显示被移动后的拼图
    pictureBox3.Image = BackImage();
}

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int X = e.X / (width / n);	// 鼠标x位置整型只能取 1到n-1
int Y = e.Y / (width / n);

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if (node[X + 1, Y].num == index_m)
{
    Swap(new Point(X + 1, Y), new Point(X, Y));
}
else if (node[X - 1, Y].num == index_m)
{
    Swap(new Point(X - 1, Y), new Point(X, Y));
}
else if (node[X, Y + 1].num == index_m)
{
    Swap(new Point(X, Y + 1), new Point(X, Y));
}
else if (node[X, Y - 1].num == index_m)
{
    Swap(new Point(X, Y - 1), new Point(X, Y));
}