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怎么用C#实现贪吃蛇小游戏

发表于:2025-01-18 作者:千家信息网编辑
千家信息网最后更新 2025年01月18日,本文小编为大家详细介绍"怎么用C#实现贪吃蛇小游戏",内容详细,步骤清晰,细节处理妥当,希望这篇"怎么用C#实现贪吃蛇小游戏"文章能帮助大家解决疑惑,下面跟着小编的思路慢慢深入,一起来学习新知识吧。界
千家信息网最后更新 2025年01月18日怎么用C#实现贪吃蛇小游戏

本文小编为大家详细介绍"怎么用C#实现贪吃蛇小游戏",内容详细,步骤清晰,细节处理妥当,希望这篇"怎么用C#实现贪吃蛇小游戏"文章能帮助大家解决疑惑,下面跟着小编的思路慢慢深入,一起来学习新知识吧。

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 false;            else                return base.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

/// /// 方向枚举///     public enum SnakeDirection    {        Left,        Right,        Down,        Up    }            ///         /// 键盘和鼠标按下时 处理 但必须有控件        ///         ///         ///         private void SnakeForm_KeyDown(object sender, KeyEventArgs e)        {            if (e.KeyCode == Keys.Up)            {                Snake.Sd = SnakeDirection.Up;            }            else if (e.KeyCode == Keys.Down)            {                Snake.Sd = SnakeDirection.Down;            }            else if (e.KeyCode == Keys.Left)            {                Snake.Sd = SnakeDirection.Left;            }            else 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 Snakebody = new List();//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 sender, 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

/// /// 开始的定时器/// /// ///         private void StartTimer_Tick(object sender, 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

/// /// 画蛇///         public void DrawSnake()        {            RectangleF[] rectangles = 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);        }

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。

/// /// 食物的位置///         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            }            else            {                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)                {                    case SnakeDirection.Up:                        ChangeSnakeLine();                        Snakebody[i].Location_Y -= 10;                        break;                    case SnakeDirection.Left:                        ChangeSnakeLine();                        Snakebody[i].Location_X -= 10;                        break;                    case SnakeDirection.Down:                        ChangeSnakeLine();                        Snakebody[i].Location_Y += 10;                        break;                    case SnakeDirection.Right:                        ChangeSnakeLine();                        Snakebody[i].Location_X += 10;                        break;                }            }            ///             /// 每次移动一次 改变蛇身体的相对位置            ///             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

/// /// 吃掉食物 判断蛇头位置和食物位置相同时,食物重新刷新///         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)                {                    case SnakeDirection.Up:                        S_eat.Location_Y = yy - 10;                        S_eat.Location_X = xx;                        Snakebody.Add(S_eat);                        break;                    case SnakeDirection.Left:                        S_eat.Location_X = xx - 10;                        S_eat.Location_Y = yy;                        Snakebody.Add(S_eat);                        break;                    case SnakeDirection.Down:                        S_eat.Location_Y = yy + 10;                        S_eat.Location_X = xx;                        Snakebody.Add(S_eat);                        break;                    case 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

/// public void CreateNewFood()        {            refreshScore();            bool IsCreate = false;            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 = false;                        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 = false;                    }                }                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                    }                    else 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

/// /// /// 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 = false;            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 false;            else                return base.ProcessDialogKey(keyData);        }        ///         /// 键盘和鼠标按下时 处理 但必须有控件        ///         ///         ///         private void SnakeForm_KeyDown(object sender, KeyEventArgs e)        {            if (e.KeyCode == Keys.Up)            {                Snake.Sd = SnakeDirection.Up;            }            else if (e.KeyCode == Keys.Down)            {                Snake.Sd = SnakeDirection.Down;            }            else if (e.KeyCode == Keys.Left)            {                Snake.Sd = SnakeDirection.Left;            }            else if (e.KeyCode == Keys.Right)            {                Snake.Sd = SnakeDirection.Right;            }        }        ///         /// 蛇的控件 记录蛇的基本方法        ///         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 Snakebody = new List();//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;            }            ///             /// 蛇初始化 朝向 初始长度等            ///             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)                {                    case SnakeDirection.Up:                        ChangeSnakeLine();                        Snakebody[i].Location_Y -= 10;                        break;                    case SnakeDirection.Left:                        ChangeSnakeLine();                        Snakebody[i].Location_X -= 10;                        break;                    case SnakeDirection.Down:                        ChangeSnakeLine();                        Snakebody[i].Location_Y += 10;                        break;                    case SnakeDirection.Right:                        ChangeSnakeLine();                        Snakebody[i].Location_X += 10;                        break;                }            }            ///             /// 每次移动一次 改变蛇身体的相对位置            ///             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 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)                {                    case SnakeDirection.Up:                        S_eat.Location_Y = yy - 10;                        S_eat.Location_X = xx;                        Snakebody.Add(S_eat);                        break;                    case SnakeDirection.Left:                        S_eat.Location_X = xx - 10;                        S_eat.Location_Y = yy;                        Snakebody.Add(S_eat);                        break;                    case SnakeDirection.Down:                        S_eat.Location_Y = yy + 10;                        S_eat.Location_X = xx;                        Snakebody.Add(S_eat);                        break;                    case 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 sender, EventArgs e)        {            Snake.Start();//创建蛇            CreateNewFood();            StartTimer.Start();            StartTimer.Interval = 100;//毫秒刷新一次        }        ///         /// 开始的定时器        ///         ///         ///         private void StartTimer_Tick(object sender, EventArgs e)        {            DrawSnake();            DrawFood();            Snake.Move(Snake.Sd);//蛇移动 移动的方向键盘控制            EatFood();            IsOrNotGameOver();                   }        ///         /// 画蛇        ///         public void DrawSnake()        {            RectangleF[] rectangles = 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);        }        ///         /// 创建一个新的食物,也就是一个小点,红色        ///         public void CreateNewFood()        {            refreshScore();            bool IsCreate = false;            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 = false;                        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 = false;                    }                }                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                    }                    else if (Snake.MaxScore<0)                    {                        Snake.MaxScore = 5;//初始化次数                    }                }                            }        }        ///         /// 食物的位置        ///         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            }            else            {                f.FillRectangle(mybrush, FoodX, FoodY, 10, 10);//随机了食物的位置            }        }        ///         /// 吃掉食物 判断蛇头位置和食物位置相同时,食物重新刷新        ///         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();            }        }        ///         ///         ///         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 = false;            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();            }        }        ///         /// 游戏结束        ///         public void GameOver()        {        }    }    ///     /// 方向枚举    ///     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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