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[3000];

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

        /// <summary>
        /// 记录位置
        /// </summary>
        int Snake_Body_content_x = 0, Snake_Body_content_y = 0;


        private void Form1_Load(object sender, EventArgs e)
        {
            this.Top = 120;
            this.Left = 120;
            this.Width = 800;
            this.Height = 800;
            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 = 0; i < 8; i++)
            {
                //蛇段
                Label Snake_Boby_content = new Label();
                Snake_Boby_content.Height = 20;
                Snake_Boby_content.Width = 20;

                //蛇段的位置
                Snake_Boby_content.Top = 400;
                Snake_Boby_content.Left = 400 - 2 * 10;

                //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 = 300;
        }

        /// <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[0].Left;
            y = Snake_Body[0].Top;
            //获取键盘代码
            
            if (Key_Name == "start")  //键盘状态处于初始状态
            {
                Snake_Body[0].Left = x + 20;  //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[0].Left = x + 20;
                Snake_move(x,y);
            }
            if (Key_Name == "Up") //键盘状态处于向上状态
            {
                Snake_Body[0].Top = y - 20;
                Snake_move(x,y);
            }
            if (Key_Name == "Down")//键盘状态处于向下状态
            {
                Snake_Body[0].Top = y + 20;
                Snake_move(x, y);
            }
            if (Key_Name == "Left")//键盘状态处于向左状态
            {
                Snake_Body[0].Left = x - 20;
                Snake_move(x, y);
            }

            //穿墙设置
            if (x > 800)
            {
                Snake_Body[0].Left = 0;
            }
            if (x < 0)
            {
                Snake_Body[0].Left = 800;
            }
            if (y > 600)
            {
                Snake_Body[0].Top = 0;
            }
            if (y < 0)
            {
                Snake_Body[0].Top = 600;
            }

            //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[0].Left;
            y = Snake_Body[0].Top;

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

            if (Key_Name == "Right") //向右
            {
                Snake_Body[0].Left = x + 20;
                Snake_move(x,y);
            }
            if (Key_Name == "Up") //向上
            {
                Snake_Body[0].Top = y - 20;
                Snake_move(x, y);
            }
            if (Key_Name == "Down") //向下
            {
                Snake_Body[0].Top = y + 20;
                Snake_move(x, y);
            }
            if (Key_Name == "Left") //向左
            {
                Snake_Body[0].Left = x - 20;
                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 = 0, temp_y = 0;

            //遍历蛇身进行移动
            for (int i = 1; Snake_Body[i] != null; i++)
            {
                if (i >= 3)
                {
                    //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 == 1)
                {
                    //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 = 20;
            Food.Height = 20;

            //生成一个随机位置的food
            Food.Top = R.Next(1, 20) * 20;
            Food.Left = R.Next(1, 20) * 20;
            // 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 = 20, y1 = 20, x2 = 20, y2 = 20;
            //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() == "0".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(1, 20) * 20;
                        lb.Left = R.Next(1, 20) * 20;
                    }
                }
            }
        }

        /// <summary>
        /// 蛇触碰到食物的事件
        /// </summary>
        public void Snake_eat()
        {
            int i = 0;
            //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 = 20;
                Snake_Boby_content.Height = 20;
                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);
        }