C#十五子游戏

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

namespace WindowsFormsApplication15
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        const int N = 4;//按钮的行、列数
        Button[,] buttons = new Button[N, N];//按钮的数组

        private void Form1_Load(object sender, EventArgs e)
        {
            //产生所有按钮
            GenerateAllButtons();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //点击“开始”按钮，打乱顺序
            Shuffle();
        }

        //打乱顺序函数
        void Shuffle()
        {
            //多次随机交换两个按钮
            Random rnd = new Random();
            for(int i = 0; i < 100; i++)
            {
                int a = rnd.Next(N);
                int b = rnd.Next(N);
                int c = rnd.Next(N);
                int d = rnd.Next(N);
                Swap(buttons[a, b], buttons[c, d]);//交换两个按钮位置
            }
        }

        //生成所有按钮函数
        void GenerateAllButtons()
        {
            int x0 = 100, y0 = 10, w = 45, d = 50;
            for (int r = 0; r < N; r++)
            {
                for (int c = 0; c < N; c++)
                {
                    int num = r * N + c;
                    Button btn = new Button();
                    btn.Text = (num + 1).ToString();//设置按钮显示的数字
                    btn.Top = y0 + r * d;//设置按钮的左边缘与容器的上边缘之间的距离
                    btn.Left = x0 + c * d;//设置按钮的左边缘与容器的左边缘之间的距离
                    btn.Width = w;//按钮宽度
                    btn.Height = w;//按钮高度
                    btn.Visible = true;//是否显示按钮
                    btn.Tag = r * N + c;//Tag属性是给程序员自己用的，做点标记，类似于按钮的ID，此处这个数据用来表示它所在的行列位置

                    //注册事件
                    btn.Click += new EventHandler(btn_click);

                    buttons[r, c] = btn;//放到数组中
                    this.Controls.Add(btn);//加到界面上
                }
            }
            buttons[N - 1, N - 1].Visible = false;//定义最后一个按钮不可见
        }

        //交换两个按钮函数
        void Swap(Button btna,Button btnb)
        {
            //两个按钮的值交换
            string t = btna.Text;
            btna.Text = btnb.Text;
            btnb.Text = t;

            //两个按钮的可见属性交换
            bool v = btna.Visible;
            btna.Visible = btnb.Visible;
            btnb.Visible = v;
        }

        //按钮点击事件处理
        void btn_click(object sender,EventArgs e)
        {
            Button btn = sender as Button;//当前点中的按钮
            Button blank = FindHiddenButton();//空白按钮

            //判断是否与空白按钮相邻，如果是，则交换
            if (IsNeighbor(btn,blank))
            {
                Swap(btn, blank);
                blank.Focus();
            }

            //判断是否完成了游戏
            if (ResultIsOk())
            {
                MessageBox.Show("OK");
            }
        }

        //查找要隐藏的按钮函数
        Button FindHiddenButton()
        {
            for (int r = 0; r < N; r++)
            {
                for (int c = 0; c < N; c++)
                {
                    if (!buttons[r,c].Visible)
                    {
                        return buttons[r, c];
                    }
                }
            }
            return null;
        }

        //判断是否相邻函数
        bool IsNeighbor(Button btnA,Button btnB)
        {
            int a = (int)btnA.Tag;//获取Tag中保存的位置信息(0-15的值)
            int b = (int)btnB.Tag;
            int r1 = a / N, c1 = a % N;//算出第几行第几列
            int r2 = b / N, c2 = b % N;
            
            //判断左右相邻或者上下相邻
            if ( (r1 == r2 && (c1 == c2 - 1 || c1 == c2 + 1)) || (c1 == c2 && (r1 == r2 - 1 || r1 == r2 + 1)) )
            {
                return true;
            }
            return false;             
        }

        //检查是否完成
        bool ResultIsOk()
        {
            for (int r = 0; r < N; r++)
            {
                for (int c = 0; c < N; c++)
                {
                    if(buttons[r,c].Text != (r * N + c + 1).ToString())
                    {
                        return false;
                    }
                }
            }
            return true;
        }

        private void Btn_Click(object sender, EventArgs e)
        {
            throw new NotImplementedException();
        }
    }
}