Winfrom 极简版贪吃蛇源码

　　该源码是我在百度知识库借助前辈的的经验，加上自己的一点小改动写的一个非常简陋的贪吃蛇小程序。如果你们有更好的改动方案，欢迎评论。

　　进入主题吧！

　　1.创建一个桌面应运程序，拖一个定时器控件。这样，程序界面完成。下面是源码！

 /// <summary>
         /// 键盘状态，初始为  start
         /// </summary>
         string Key_Name = "start";

         /// <summary>
         /// 蛇身数组
         /// </summary>
         Label[] Snake_Body = new Label[];

         /// <summary>
         /// 随机数，用于food
         /// </summary>
         Random R = new Random();

         /// <summary>
         /// 记录位置
         /// </summary>
         int Snake_Body_content_x = , Snake_Body_content_y = ;

         private void Form1_Load(object sender, EventArgs e)
         {
             this.Top = ;
             this.Left = ;
             this.Width = ;
             this.Height = ;
             this.BackColor = Color.White;

             //初始化一个Label蛇体，长度为5个Label 一个Label height = weight = 10

             for (int i = ; i < ; i++)
             {
                 //蛇段
                 Label Snake_Boby_content = new Label();
                 Snake_Boby_content.Height = ;
                 Snake_Boby_content.Width = ;

                 //蛇段的位置
                 Snake_Boby_content.Top = ;
                 Snake_Boby_content.Left =  -  * ;

                 //背景色
                 this.BackColor = Color.White;
                 //Snake_Boby_content.BackColor = Color.Black;
                 //Snake_Boby_content.Text = "▉";
                 Snake_Boby_content.Image = Image.FromFile(Application.StartupPath + @"\3.png");

                 //获取或设置包含有关控件的数据的对象
                 Snake_Boby_content.Tag = i;

                 //加入蛇体
                 Snake_Body[i] = Snake_Boby_content;
                 this.Controls.Add(Snake_Boby_content);
             }

             //每隔一段时间发生一次右移
             tmTimer.Tick += new EventHandler(tmTimer_Tick);

             //按键时发生的事件监控
             this.KeyDown += new KeyEventHandler(Form1_KeyDown);

             Snake_food();  //food 生成
             //tmTimer.Start(); //计时器开始
             tmTimer.Enabled = true;
             tmTimer.Interval = ;
         }

         /// <summary>
         /// snake的自动移动事件
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>
         private void tmTimer_Tick(object sender, EventArgs e)
         {
             //用来记录snake的head的xy坐标
             int x, y;
             x = Snake_Body[].Left;
             y = Snake_Body[].Top;
             //获取键盘代码

             if (Key_Name == "start")  //键盘状态处于初始状态
             {
                 Snake_Body[].Left = x + ;  //Snake_Body[0]右移10
                 Snake_move(x, y);  //调用
             }
             if (Key_Name == "Right")  //键盘状态处于向右状态
             {
                 Snake_Body[].Left = x + ;
                 Snake_move(x,y);
             }
             if (Key_Name == "Up") //键盘状态处于向上状态
             {
                 Snake_Body[].Top = y - ;
                 Snake_move(x,y);
             }
             if (Key_Name == "Down")//键盘状态处于向下状态
             {
                 Snake_Body[].Top = y + ;
                 Snake_move(x, y);
             }
             if (Key_Name == "Left")//键盘状态处于向左状态
             {
                 Snake_Body[].Left = x - ;
                 Snake_move(x, y);
             }

             //穿墙设置
             if (x > )
             {
                 Snake_Body[].Left = ;
             }
             if (x < )
             {
                 Snake_Body[].Left = ;
             }
             if (y > )
             {
                 Snake_Body[].Top = ;
             }
             if (y < )
             {
                 Snake_Body[].Top = ;
             }

             //每动一次，判断是否与食物重合
             Eat_time();
         }

         /// <summary>
         /// 对键盘按键输入的响应
         /// </summary>
         /// <param name="sender"></param>
         /// <param name="e"></param>

         private void Form1_KeyDown(object sender, KeyEventArgs e)
         {
             int x, y;
             x = Snake_Body[].Left;
             y = Snake_Body[].Top;

             //获取键盘代码
             Key_Name = e.KeyCode.ToString();

             if (Key_Name == "Right") //向右
             {
                 Snake_Body[].Left = x + ;
                 Snake_move(x,y);
             }
             if (Key_Name == "Up") //向上
             {
                 Snake_Body[].Top = y - ;
                 Snake_move(x, y);
             }
             if (Key_Name == "Down") //向下
             {
                 Snake_Body[].Top = y + ;
                 Snake_move(x, y);
             }
             if (Key_Name == "Left") //向左
             {
                 Snake_Body[].Left = x - ;
                 Snake_move(x, y);
             }

             //每按一次，判断是否与食物重合
             Eat_time();
         }

         /// <summary>
         /// 蛇的自动移动事件
         /// </summary>
         /// <param name="x"></param>
         /// <param name="y"></param>
         public void Snake_move(int x, int y)
         {
             //记录x,y的中间变量   跟冒泡排序相同用法，临时存放变量
             int temp_x = , temp_y = ;

             //遍历蛇身进行移动
             for (int i = ; Snake_Body[i] != null; i++)
             {
                 if (i >= )
                 {
                     //将记录前一个蛇段位置赋给中间变量
                     temp_x = Snake_Body_content_x;
                     temp_y = Snake_Body_content_y;
                 }
                 if (i == )
                 {
                     //将记录蛇头的改变前的位置给x y 赋给第一个蛇段，并记录蛇段的位置
                     temp_x = Snake_Body[i].Left;
                     temp_y = Snake_Body[i].Top;
                     Snake_Body[i].Left = x;
                     Snake_Body[i].Top = y;
                 }
                 else
                 {
                     //将记录前一个个蛇段的改变前的位置temp_赋给第二个蛇段，并记录改前位置
                     Snake_Body_content_x = Snake_Body[i].Left;
                     Snake_Body_content_y = Snake_Body[i].Top;
                     Snake_Body[i].Left = temp_x;
                     Snake_Body[i].Top = temp_y;
                 }
             }
         }

         /// <summary>
         /// food的生成事件
         /// </summary>
         public void Snake_food()
         {
             //创建食物
             Label Food = new Label();
             Food.Width = ;
             Food.Height = ;

             //生成一个随机位置的food
             Food.Top = R.Next(, ) * ;
             Food.Left = R.Next(, ) * ;
             // Food.Text = "";
             Food.Tag = "food";
             Food.Image = Image.FromFile(Application.StartupPath + @"\3.png");  //Application.StartupPath + @"\3.png"  获取程序的根目录中的Debug中的图片
             this.Controls.Add(Food);
         }

         /// <summary>
         /// 蛇吃食物事件
         /// </summary>
         public void Eat_time()
         {
             double x1 = , y1 = , x2 = , y2 = ;
             //遍历Controls中所有Lable
             foreach (Label lb in this.Controls)
             {
                 //如果lb为food，将lable的位置记录
                 if (lb.Tag.ToString() == "food".ToString())
                 {
                     x2 = lb.Left;
                     y2 = lb.Top;
                 }
                 //如果lable为snake，将lable的位置记录
                 if (lb.Tag.ToString() == "".ToString())
                 {
                     x1 = lb.Left;
                     y1 = lb.Top;
                 }
             }

             if (x2 == x1 && y2 == y1)  //判断蛇头和食物是否重合，
             {
                 Snake_eat();

                 //重新随机生成食物
                 foreach (Label lb in this.Controls)
                 {
                     if (lb.Tag.ToString() == "food".ToString())
                     {
                         lb.Top = R.Next(, ) * ;
                         lb.Left = R.Next(, ) * ;
                     }
                 }
             }
         }

         /// <summary>
         /// 蛇触碰到食物的事件
         /// </summary>
         public void Snake_eat()
         {
             int i = ;
             //遍历到蛇尾 将食物添加到最后一个位置
             for (; Snake_Body[i] != null; i++) ;
                 //蛇触碰到food蛇段加1，定义蛇段
                 Label Snake_Boby_content = new Label();
                 Snake_Boby_content.Width = ;
                 Snake_Boby_content.Height = ;
                 Snake_Boby_content.Top = Snake_Body_content_y;  //记录最后一段的位置
                 Snake_Boby_content.Left = Snake_Body_content_x;
                 Snake_Boby_content.BackColor = Color.White;
                 Snake_Boby_content.Image = Image.FromFile(Application.StartupPath + @"\3.png");
                 Snake_Boby_content.Tag = i;
                 Snake_Body[i] = Snake_Boby_content;
                 Snake_Boby_content.BackColor = Color.Black;
                 this.Controls.Add(Snake_Boby_content);
         }