C#_界面程序_数码游戏

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 数码游戏
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        const int N = 3;  //按钮的行，列数
        Button[,] buttons = new Button[N, N]; //按钮的数组

        /*
         * 产生按钮
         */ 
        private void Form1_Load(object sender, EventArgs e)
        {
            //产生所有按钮
            GenerateAllButtons();
        }
        private void btnStart_Click(object sender, EventArgs e)
        {
            //MessageBox.Show("Hello");
            //打乱顺序
            Shuffle();
        }

        /*
         * 生产界面
         */
        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();
                    btn.Top = y0 + r * d; //顶端位置
                    btn.Left = x0 + c * d;//左边位置
                    btn.Width = w;
                    btn.Height = w;
                    btn.Visible = true;
                    //记录在tag上,这里记录行列
                    btn.Tag = r * N + c;

                    //注册事件--给btnStart_Click这个按钮注册事件
                    btn.Click += btn_Click;

                    buttons[r, c] = btn;    //放在数组中
                    this.Controls.Add(btn); //加到界面上
                }
                
            }
            //最后一个不显示
            buttons[N - 1, N - 1].Visible = false;
        }

        //点击按钮事件
        void btn_Click(object sender, EventArgs e)
        {
            //当前点中的按钮, 事件源
            Button btn = sender as Button;
            Button blank = FindHiddenButton(); //空白按钮

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

            //判断是否完成了
            if (ResultIsOk())
            {
                MessageBox.Show("YOU WIN !");
            }
        }

        //打乱顺序
        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]);
            }
        }

        //只是交换文本和可视性
        void Swap(Button btna, Button btnb)
        {
            string t = btna.Text;
            btna.Text = btnb.Text;
            btnb.Text = t;

            bool v = btna.Visible;
            btna.Visible = btnb.Visible;
            btnb.Visible = v;
        }

        //查找要隐藏的按钮
       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
        bool IsNeighbor(Button btnA, Button btnB)
        {
           int a = (int) btnA.Tag;  //Tag中记录是行列位置
           int b = (int) btnB.Tag;
           int r1 = a / N, c1 = a % N; //得到行，列
           int r2 = b / N, c2 = b % N;

           if (r1 == r2 && (c1 == c2 - 1 || c1 == c2 + 1)
               || c1 == c2 && (r1 == r2 - 1 || r1 == r2 + 1) )
               return true;
           return false;
        }

        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;
        }
        
        /*
         * 下面实现自动寻路算法
         */ 
        private void btnSolve_Click(object sender, EventArgs e)
        {

        }

    }
}