C#实现贪吃蛇小游戏

本文实例为大家分享了c#实现贪吃蛇小游戏的具体代码，供大家参考，具体内容如下

之前一直想写一个贪吃蛇小游戏，上个周末终于有时间做了一个，现在和大家分享。

界面

界面比较简单，一个按钮和一个积分器组成。
基本逻辑：每五个食物出现一次大食物，小食物1分，大食物5分。
控制：撞墙和缠绕时，游戏暂停。

代码详解

详细介绍下代码

一、代码分详解

1.界面是在pc上，所以移动以上下左右键来控制移动，为了及时响应，所以增加如下代码

protected override bool processdialogkey(keys keydata)    {      //遇到上下左右键 就自定义处理      if (keydata == keys.up || keydata == keys.down ||      keydata == keys.left || keydata == keys.right)        return fal;      el        return ba.processdialogkey(keydata);    }

2.做个枚举，来标记某个时间状态下蛇的移动方向，配合键盘按键

/// <summary>/// 方向枚举/// </summary>  public enum snakedirection  {    left,    right,    down,    up  }      /// <summary>    /// 键盘和鼠标按下时 处理 但必须有控件    /// </summary>    /// <param name="nder"></注册安全工程师考试题库param>    /// <param name="e"></param>    private void snakeform_keydown(object nder, keyeventargs e)    {      if (e.keycode == keys.up)      {        snake.sd = snakedirection.up;      }      el if (e.keycode == keys.down)      {        snake.sd = snakedirection.down;      }      el if (e.keycode == keys.left)      {        snake.sd = snakedirection.left;      }      el if (e.keycode == keys.right)      {        snake.sd = snakedirection.right;      }    }

3.声明一个蛇的类，存储所有蛇的相关信息，如所有蛇身体的节点位置

public class snake

主要变量如下

public static snakedirection sd;//蛇进行的方向 上下左右四个方向public int location_x;//0为x，1为y 蛇的初始位置public int location_y;public static list<snake> snakebody = new list<snake>();//蛇身子的具体位置，每次位移都刷新一次 整个蛇身子的所有位置 最后一位是蛇头public static int width = 10, height = 10;public static int curscore = 1;//当前食物的分数public static int allscore = -1;//总分数public static int maxscore = 5;//大分出现频次

4.声明一个食物的类，同时增加一个方法，随机在界面上的一个位置显示食物

public class food  {    public int food_location_x;    public int food_location_y;    public food()    {      random x = new random();      random y = new random();      food_location_x = x.next(0, 49) * 10;//随机点出现食物      food_location_y = y.next(0, 49) * 10;//随机点出现食物    }  }

5.点击开始按钮，触发开始相关方法，主要是启动刷新的时间器，初始化食物位置，初始化积分等

public void refreshscore()    {      snake.allscore = snake.allscore+ snake.curscore;     this.snakescore.text = convert.tostring(snake.allscore);    }    private int foodx = 0;//食物x轴    private int foody = 0;//食物y轴    private void beginbtn_click(object nder, eventargs e)    {      snake.start();//创建蛇      createnewfood();      starttimer.start();      starttimer.interval = 100;//毫秒刷新一次    }

6.定时器启动后，定时刷新，我这边设置的是100毫秒，也可以做一个前端设置按钮，增加游戏趣味性，同时也可以设置根据不同的积分处理此设置

定时器中有画蛇身体的方法、随机一个食物位置的方法、蛇移动的方法、蛇是否吃到食物的方法、游戏有没有结束的方法

/// <summary>/// 开始的定时器/// </summary>/// <param name="nder"></param>/// <param name="e"></param>    private void starttimer_tick(object nder, eventargs e)    {      drawsnake();      drawfood();      snake.move(snake.sd);//蛇移动 移动的方向键盘控制      eatfood();      isornotgameover();         }

7.画蛇的方法如下

/// <summary>/// 画蛇/// </summary>    public void drawsnake()    {      rectanglef[] rectangles = new rectanglef[snake.snakebody.count];      int num;      for (n加盟店合同范本um = 0; num < snake.snakebody.count; num++)      {        rectangles[num] = new rectanglef(snake.snakebody[num].location_x,          snake.snakebody[num].location_y, snake.width, snake.height);      }      this.refresh();      graphics g = this.snake_panel.creategraphics();      solidbrush mybrush = new solidbrush(color.black);      g.fillrectangles(mybrush, rectangles);    }

8.食物显示的方法如下，其中maxscore表示小食物出现的次数，每出现一次此值减一，当为0时，食物变为大食物。

/// <summary>/红烧茄子的家常做法简单又好吃// 食物的位置/// </summary>    public void drawfood()    {      graphics f = this.snake_panel.creategraphics();      solidbrush mybrush = new solidbrush(color.red);          if (snake.maxscore==0)      {        f.fillrectangle(mybrush, foodx, foody, 20, 20);//随机了食物的位置      }      el      {        f.fillrectangle(mybrush, foodx, foody, 10, 10);//随机了食物的位置      }    }

9.当每次刷新时，蛇都会移动，相应的蛇整体的位置也会发生变化，但蛇身有痕迹，所以使用如下方式进行蛇体变化

//蛇的移动操作 每次移动 都需要改变蛇身体public static void move(snakedirection sd)      {        int i = snakebody.count - 1;//根据不同的移动方向 需要对相对位置发生变化，这个操作保证蛇身按照蛇头的轨迹运转        switch (sd)        {          ca snakedirection.up:            changesnakeline();            snakebody[i].location_y -= 10;            break;          ca snakedirection.left:            changesnakeline();            snakebody[i].location_x -= 10;            break;          ca snakedirection.down:            changesnakeline();            snakebody[i].location_y += 10;            break;          ca snakedirection.right:            changesnakeline();            snakebody[i].location_x += 10;            break;        }      }      /// <summary>      /// 每次移动一次 改变蛇身体的相对位置      /// </summary>      public static void changesnakeline()      {        int j = 0;        int x, y;        int i = snakebody.count - 1;        for (j = 0; j < i; j++)//蛇 1位置变为蛇0 2=》1 3=》2        {          x = snakebody[j + 1].location_x;          y = snakebody[j + 1].location_y;          snakebody[j].location_y = y;          snakebody[j].location_x = x;        }      }

10.刷新蛇身体后，要判断食物位置是否和蛇头碰撞，当发生碰撞时，表示蛇吃掉了食物，食物刷新，蛇身体增长

/// <summary>/// 吃掉食物 判断蛇头位置和食物位置相同时，食物重新刷新/// </summary>    public void eatfood()    {      if (snake.snakebody[snake.snakebody.count - 1].location_x == foodx        && snake.snakebody[snake.snakebody.count - 1].location_y == foody)      {        snake.addbody();//增加 蛇身增加        //吃掉食物之后 随机创建一个新的食物        createnewfood();      }    }          //吃一个节点 变为新的蛇头      public static void addbody()      {        snake s_eat = new snake();        int xx = snakebody[snakebody.count - 1].location_x;        int yy = snakebody[snakebody.count - 1].location_y;        switch (sd)        {          ca snakedirection.up:            s_eat.location_y = yy - 10;            s_eat.location_x = xx;            snakebody.add(s_eat);            break;          ca snakedirection.left:            s_eat.location_x = xx - 10;            s_eat.location_y = yy;            snakebody.add(s_eat);            break;          ca snakedirection.down:            s_eat.location_y = yy + 10;            s_eat.location_x = xx;            snakebody.add(s_eat);            break;          ca snakedirection.right:            s_eat.location_y = yy;            s_eat.location_x = xx + 10;            snakebody.add(s_eat);            break;        }      }

11.食物被吃掉后，食物刷新，同时判断小食物出现的次数

/// </summary>public void createnewfood()    {      refreshscore();      bool iscreate = fal;      while (!iscreate)//是否创建成功      {        food newfood = new food();        foodx = newfood.food_location_x;        foody = newfood.food_location_y;        //判断这个不会出现在蛇身上        iscreate = true;//创建成功        for (int i = 0; i < snake.snakebody.count; i++)        {          if (snake.snakebody[i].location_x == foodx && snake.snakebody[i].location_y == foody)//当坐标相同 终止for 未创建成功          {            iscreate = fal;            break;          }        }        if (iscreate)        {          if (!(foodx <= this.snake_panel.width-10 && foodx >= 10 && foody <= this.snake_panel.height-10 && foody >= 10))//食物不在范围内 重新刷新          {            iscreate = fal;          }        }        if (iscreate)        {          if (snake.snakebody.count != 4)          {            snake.maxscore--;//不是第一次创建食物时          }          snake.curscore = 1;//当前小节点的分数          if (snake.maxscore == 0)          {            snake.curscore = 5;//当前小节点的分数          }          el if (snake.maxscore<0)          {            snake.maxscore = 5;//初始化次数          }        }             }    }

12.每次定时器刷新，蛇身会发生变化，同时就需要判断蛇是否触发终止规则
蛇身体缠绕，蛇头碰壁表示游戏终止

/// <summary>////// </summary>public void isornotgameover()    {      int x = snake.snakebody[snake.snakebody.count - 1].location_x;      int y = snake.snakebody[snake.snakebody.count - 1].location_y;      bool isgameover = fal;      if (!(x <= this.snake_panel.width && x >= 0 && y <= this.snake_panel.height && y >= 0))//蛇头碰触到边框      {        isgameover = true;      }      //蛇头碰到自己蛇身      for(int i=0;i< snake.snakebody.count - 2; i++)      {        if(snake.snakebody[i].location_x==x&& snake.snakebody[i].location_y == y)        {          isgameover = true;          break;        }      }      if (isgameover)      {        gameover();        starttimer.stop();      }    }

以上就是整个蛇运行的逻辑

二、完整代码

using system;using system.collections.generic;using system.componentmodel;using system.data;using system.drawing;using system.linq;using system.text;using system.windows.forms;namespace project_snake{  public partial class snakeform : form  {    public snakeform()    {      initializecomponent();    }    //为了上下左右键起作用 需要重写这个操作    protected override bool processdialogkey(keys keydata)    {      //遇到上下左右键 就自定义处理      if (keydata == keys.up || keydata == keys.down ||      keydata == keys.left || keydata == keys.right)        return fal;      el        return ba.processdialogkey(keydata);    }    /// <summary>    /// 键盘和鼠标按下时 处理 但必须有控件    /// </summary>    /// <param name="nder"></param>    /// <param name="e"></param>    private void snakeform_keydown(object nder, keyeventargs e)    {      if (e.keycode == keys.up)      {        snake.sd = snakedirection.up;      }      el if (e.keycode == keys.down)      {        snake.sd = snakedirection.down;      }      el if (e.keycode == keys.left)      {        snake.sd = snakedirection.left;      }      el if (e.keycode == keys.right)      {        snake.sd = snakedirection.right;      }    }    /// <summary>    /// 蛇的控件 记录蛇的基本方法    /// </summary>    public class snake    {      public static snakedirection sd;//蛇进行的方向 上下左右四个方向      public int location_x;//0为x，1为y 蛇的初始位置      public int location_y;      public static list<snake> snakebody = new list<snake>();//蛇身子的具体位置，每次位移都刷新一次 整个蛇身子的所有位置 最后一位是蛇头      public static int width = 10, height = 10;      public static int curscore = 1;//当前食物的分数      public static int allscore = -1;//总分数      public static int maxscore = 5;//大分出现频次      //当前方向      public snake()      {        location_x = 300;        location_y = 300;      }      /// <summary>      /// 蛇初始化 朝向 初始长度等      /// </summary>      public static void start()      {        maxscore = 5;        allscore = -1;        curscore = 1;        sd = snakedirection.left;//默认往左跑        snakebody.clear();//每次操作舍身重置        //添加初始化的小蛇位置        snake s0 = new snake();//蛇1        snake s1 = new snake();//蛇2        snake s2 = new snake();        snake s3 = new snake();        //默认四个长度 蛇的位置        snakebody.add(s0);//默认蛇1位置  snakebody[0]是蛇头        s1.location_x = s0.location_x - 10;        snakebody.add(s1);        s2.location_x = s1.location_x - 10;        snakebody.add(s2);        s3.location_x = s2.location_x - 10;        snakebody.add(s3);      }      //蛇的移动操作 每次移动 都需要改变蛇身体      public static void move(snakedirection sd)      {        int i = snakebody.count - 1;//根据不同的移动方向 需要对相对位置发生变化，这个操作保证蛇身按照蛇头的轨迹运转        switch (sd)        {          ca snakedirection.up:            changesnakeline();            snakebody[i].location_y -= 10;            break;          ca snakedirection.left:            changesnakeline();            snakebody[i].location_x -= 10;            break;          ca snakedirection.down:            changesnakeline();            snakebody[i].location_y += 10;            break;          ca snakedirection.right:            changesnakeline();            snakebody[i].location_x += 10;            break;        }      }      /// <summary>      /// 每次移动一次 改变蛇身体的相对位置      /// </summary>      public static void changesnakeline()      {        int j = 0;        int x, y;        int i = snakebody.count - 1;        for (j = 0; j < i; j++)//蛇 1位置变为蛇0 2=》1 3=》2        {          x = snakebody[j + 1].location_x;          y = snakebody[j + 1].location_y;          snakebody[j].location_y = y;          snakebody[j].location_x = x;        }      }      //吃一个节点 变为新的蛇头      public static voi岂能长少年d addbody()      {        snake s_eat = new snake();        int xx = snakebody[snakebody.count - 1].location_x;        int yy = snakebody[snakebody.count - 1].location_y;        switch (sd)        {          ca snakedirection.up:            s_eat.location_y = yy - 10;            s_eat.location_x = xx;            snakebody.add(s_eat);            break;          ca snakedirection.left:            s_eat.location_x = xx - 10;            s_eat.location_y = yy;            snakebody.add(s_eat);            break;          ca snakedirection.down:            s_eat.location_y = yy + 10;            s_eat.location_x = xx;            snakebody.add(s_eat);            break;          ca snakedirection.right:            s_eat.location_y = yy;            s_eat.location_x = xx + 10;            snakebody.add(s_eat);            break;        }      }         }    public void refreshscore()    {      snake.allscore = snake.allscore+ snake.curscore;     this.snakescore.text = convert.tostring(snake.allscore);    }    private int foodx = 0;//食物x轴    private int foody = 0;//食物y轴    private void beginbtn_click(object nder, eventargs e)    {      snake.start();//创建蛇      createnewfood();      starttimer.start();      starttimer.interval = 100;//毫秒刷新一次    }    /// <summary>    /// 开始的定时器    /// </summary>    /// <param name="nder"></param>    /// <param name="e"></param>    private void starttimer_tick(object nder, eventargs e)    {      drawsnake();      drawfood();      snake.move(snake.sd);//蛇移动 移动的方向键盘控制      eatfood();      isornotgameover();         }    /// <summary>    /// 画蛇    /// </summary>    public void drawsnake()    {      rectanglef[] rectangles =高二数学知识点 new rectanglef[snake.snakebody.count];      int num;      for (num = 0; num < snake.snakebody.count; num++)      {        rectangles[num] = new rectanglef(snake.snakebody[num].location_x,          snake.snakebody[num].location_y, snake.width, snake.height);      }      this.refresh();      graphics g = this.snake_panel.creategraphics();      solidbrush mybrush = new solidbrush(color.black);      g.fillrectangles(mybrush, rectangles);    }    /// <summary>    /// 创建一个新的食物，也就是一个小点，红色    /// </summary>    public void createnewfood()    {      refreshscore();      bool iscreate = fal;      while (!iscreate)//是否创建成功      {        food newfood = new food();        foodx = newfood.food_location_x;        foody = newfood.food_location_y;        //判断这个不会出现在蛇身上        iscreate = true;//创建成功        for (int i = 0; i < snake.snakebody.count; i++)        {          if (snake.snakebody[i].location_x == foodx && snake.snakebody[i].location_y == foody)//当坐标相同 终止for 未创建成功          {            iscreate = fal;            break;          }        }        if (iscreate)        {          if (!(foodx <= this.snake_panel.width-10 && foodx >= 10 && foody <= this.snake_panel.height-10 && foody >= 10))//食物不在范围内 重新刷新          {            iscreate = fal;          }        }        if (iscreate)        {          if (snake.snakebody.count != 4)          {            snake.maxscore--;//不是第一次创建食物时          }          snake.curscore = 1;//当前小节点的分数          if (snake.maxscore == 0)          {            snake.curscore = 5;//当前小节点的分数          }          el if (snake.maxscore<0)          {            snake.maxscore = 5;//初始化次数          }        }             }    }    /// <summary>    /// 食物的位置    /// </summary>    public void drawfood()    {      graphics f = this.snake_panel.creategraphics();      solidbrush mybrush = new solidbrush(color.red);          if (snake.maxscore==0)      {        f.fillrectangle(mybrush, foodx, foody, 20, 20);//随机了食物的位置      }      el      {        f.fillrectangle(mybrush, foodx, foody, 10, 10);//随机了食物的位置      }    }    /// <summary>    /// 吃掉食物 判断蛇头位置和食物位置相同时，食物重新刷新    /// </summary>    public void eatfood()    {      if (snake.snakebody[snake.snakebody.count - 1].location_x == foodx        && snake.snakebody[snake.snakebody.count - 1].location_y == foody)      {        snake.addbody();//增加 蛇身增加        //吃掉食物之后 随机创建一个新的食物        createnewfood();      }    }    /// <summary>    ///    /// </summary>    public void isornotgameover()    {      int x = snake.snakebody[snake.snakebody.count - 1].location_x;      int y = snake.snakebody[snake.snakebody.count - 1].location_y;      bool isgameover = fal;      if (!(x <= this.snake_panel.width && x >= 0 && y <= this.snake_panel.height && y >= 0))//蛇头碰触到边框      {        isgameover = true;      }      //蛇头碰到自己蛇身      for(int i=0;i< snake.snakebody.count - 2; i++)      {        if(snake.snakebody[i].location_x==x&& snake.snakebody[i].location_y == y)        {          isgameover = true;          break;        }      }      if (isgameover)      {        gameover();        starttimer.stop();      }    }    /// <summary>    /// 游戏结束    /// </summary>    public void gameover()    {    }  }  /// <summary>  /// 方向枚举  /// </summary>  public enum snakedirection  {    left,    right,    down,    up  }  //食物类 食物的纵轴横轴  public class food  {    public int food_location_x;    public int food_location_y;    public food()    {      random x = new random();      random y = new random();      food_location_x = x.next(0, 49) * 10;//随机点出现食物      food_location_y = y.next(0, 49) * 10;//随机点出现食物    }  }}

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