mooc C#推方块代码

  1 using System;
  2 using System.Collections.Generic;
  3 using System.ComponentModel;
  4 using System.Data;
  5 using System.Drawing;
  6 using System.Linq;
  7 using System.Text;
  8 using System.Threading.Tasks;
  9 using System.Windows.Forms;
 10 
 11 namespace WindowsFormsApplication4
 12 {
 13     public partial class Form1 : Form
 14     {
 15         public Form1()
 16         {
 17             InitializeComponent();
 18         }
 19         const int N = 4;
 20         Button[,] buttons = new Button[N, N];
 21         private void Form1_Load(object sender, EventArgs e)
 22         {
 23             GenerateAllButtons();//产生按钮
 24         }
 25 
 26         private void button1_Click(object sender, EventArgs e)
 27         {
 28             Shuffle(); //打乱
 29         }
 30         void GenerateAllButtons()
 31         {
 32             int X = 130, Y = 50, W = 45, D = 50;
 33             for(int r=0;r<N;r++)
 34             {
 35                 for (int c = 0; c < N; c++)
 36                 {
 37                     int num = r * N + c;
 38                     Button btn = new Button();
 39                     btn.Text = (num + 1).ToString();
 40                     btn.Top = Y + r * D;
 41                     btn.Left = X + c * D;
 42                     btn.Width = W;
 43                     btn.Height = W;
 44                     btn.Visible = true;
 45                     btn.Tag = r * N + c;
 46 
 47                     btn.Click += new EventHandler(btn_Click);
 48                     buttons[r, c] = btn;
 49                     this.Controls.Add(btn);
 50                 }
 51             }
 52             buttons[N - 1, N - 1].Visible = false;
 53         }
 54 
 55         void Shuffle()
 56         {
 57             Random ran = new Random();
 58             for(int i=0;i <100;i++)
 59             {
 60                 int a = ran.Next(N);
 61                 int b = ran.Next(N);
 62                 int c = ran.Next(N);
 63                 int d = ran.Next(N);
 64                 swap(buttons[a, b], buttons[c, d]);
 65             }
 66         }
 67         void swap(Button a,Button b)
 68         {
 69             string t = a.Text;
 70             a.Text = b.Text;
 71             b.Text = t;
 72 
 73             bool v = a.Visible;
 74             a.Visible = b.Visible;
 75             b.Visible = v;
 76         }
 77         void btn_Click(object sender, EventArgs e)
 78         {
 79             Button btn = sender as Button;
 80             Button blank = FindBlank();
 81             if (IsNear(btn, blank))
 82             {
 83                 swap(btn, blank);
 84                 blank.Focus();
 85             }
 86             if (resultIsOk())
 87             {
 88                 MessageBox.Show("congratulation!");
 89             }
 90 
 91         }
 92         Button FindBlank()
 93         {
 94             for (int r = 0; r < N; r++)
 95                 for (int c = 0; c < N; c++)
 96                 {
 97                     if (!buttons[r, c].Visible)
 98                     {
 99                         return buttons[r, c];
100                     }
101                 }
102             return null;
103         }
104         bool IsNear(Button a, Button b)
105         {
106             int x = (int)a.Tag;
107             int y = (int)b.Tag;
108             if (x / N == y / N && (x % N + 1 == y % N || x % N - 1 == y % N))
109                 return true;
110             if( x % N == y % N && (x/N+1==y/N||x/N-1==y/N))
111                 return true;
112             return false;
113         }
114         bool resultIsOk()
115         {
116             for (int r = 0; r < N; r++)
117                 for (int c = 0; c < N; c++)
118                 {
119                     if (buttons[r, c].Text != (r * N + c + 1).ToString())
120                     {
121                         return false;
122                     }
123                 }
124             return true;
125         }
126     }
127 }