C#编程 [“贪吃蛇”小游戏]

1、C#编程 “贪吃蛇”小游戏一、项目内容及要求编程实现一个“贪吃蛇”小游戏，具体要求如下：1）程序启动后，蛇身默认向右移动，直到用户按下方向键改变运动方向。2）玩家通过键盘上的上、下、左、右四个方向键控制蛇在地图上寻找豆，蛇吃下豆后，蛇身加长一节。 3）界面上任意时刻同时会有三个豆，豆的位置随机生成，定时刷新。4）在游戏过程中，若蛇头碰到场地边界或自己的身体，则游戏失败。二、算法分析一、控件设计1）主菜单控件 MenuStrip2）面板控件 Panel：背景色为黄色3）标签控件 Label1、Label2 二、类设计1）Game类，入口主窗体、游戏界面类。Game类的主要功能包括控制游戏的开始与

2、暂停、选择游戏关卡、声明并创建蛇的行为及豆的行为线程，启动线程。2）Block类：代表蛇和豆一个节点的块类，游戏中需要绘制的块分为以下三种情况：（1）蛇头：红色椭圆（2）蛇身：红色矩形 （3）豆：绿色椭圆添加类的属性：块的颜色、是否蛇头、是否豆，横坐标X、纵坐标Y添加类的行为：绘制块draw（）方法，构造函数（判断是否豆），重载构造函数3）Snake类：定义游戏中的蛇。其属性包括蛇移动的方向以及蛇身的集合（泛型集合List<>）；其行为成员包括蛇吃豆、吃过豆之后蛇身增长、蛇身移动以及判断蛇是否死亡等。4）Beans类：定义游戏中的豆。其属性包括3个豆组成的列表（List<&g

3、t;）；其行为成员包括定时刷新豆的集合以及移除某个豆。三、界面及运行过程四、关键代码（代码要求注释完整，例如：变量的作用，语句的作用，方法的功能等都要加注释说明）namespace 项目5 public partial class Form1 : Form Food food = new Food(); Snake snake = new Snake(); private int score; public Form1() InitializeComponent(); timer1.Enabled = false;/timer是否可用 timer1.Interval = snake.Speed

4、; /蛇初始速度 score = 0; Point body = new Point1000; /蛇最大长度 private void 操作ToolStripMenuItem_Click(object sender, EventArgs e) protected override bool ProcessDialogKey(Keys keyData) switch (keyData) case Keys.Up: if (snake.Direction != Direction.down) snake.Direction = Direction.up; break; case Keys.Down

5、: if (snake.Direction != Direction.up) snake.Direction = Direction.down; break; case Keys.Left: if (snake.Direction != Direction.right) snake.Direction = Direction.left; break; case Keys.Right: if (snake.Direction != Direction.left) snake.Direction = Direction.right; break; return base.ProcessDialog

6、Key(keyData); private void menuStrip1_ItemClicked(object sender, ToolStripItemClickedEventArgs e) private void 开始游戏ToolStripMenuItem_Click(object sender, EventArgs e) label2.Text = "0" score = 0; timer1.Enabled = true; if (snake.Live = false) snake = new Snake(); snake.resetSnake(); label2

7、.Text = "0" score = 0; timer1.Enabled = true; private void 关卡设定ToolStripMenuItem_Click(object sender, EventArgs e) private void 暂停游戏ToolStripMenuItem_Click(object sender, EventArgs e) if (暂停游戏ToolStripMenuItem.Text = "暂停游戏") timer1.Enabled = false; 暂停游戏ToolStripMenuItem.Text = &q

8、uot;继续" else timer1.Enabled = true; 暂停游戏ToolStripMenuItem.Text = "暂停游戏" private void 退出游戏ToolStripMenuItem_Click(object sender, EventArgs e) this.Close(); private void 第一关ToolStripMenuItem_Click(object sender, EventArgs e) timer1.Interval = 200; private void 第二关ToolStripMenuItem_Click

9、(object sender, EventArgs e) timer1.Interval = 150; private void 第三关ToolStripMenuItem_Click(object sender, EventArgs e) timer1.Interval = 100; private void 第四关ToolStripMenuItem_Click(object sender, EventArgs e) timer1.Interval = 50; private void 第五关ToolStripMenuItem_Click(object sender, EventArgs e)

10、 timer1.Interval = 30; private void timer1_Tick(object sender, EventArgs e) snake.Move(); panel1.Invalidate();/蛇运动后，把picturebox1当前界面设为无效，并引发paint事件，重新绘制界面 private void panel1_Paint(object sender, PaintEventArgs e) Graphics g = e.Graphics; snake.Draw(g);/画蛇 if (snake.live = false) timer1.Enabled = fa

11、lse;/timer1不可用 if (snake.Body0.X = food.Position.X && snake.Body0.Y = food.Position.Y) snake.Eat(food); food.Exist = false; score += 10; label2.Text = score.ToString(); if (food.Exist) food.Draw(g); else food.Position = food.createdFood();/重新创造绘制食物 food.Exist = true; food.Draw(g); using Syst

12、em;using System.Collections.Generic;using System.Linq;using System.Text;using System.ComponentModel;using System.Data;using System.Drawing;using System.Windows.Forms;using System.Media;using System.IO;namespace 项目5 class Block public enum Direction up, down, left, right, class Snake public int score

13、; public const int side = 10;/蛇身每个节点长度 Point body = new Point600;/蛇身最大长度 Direction direction;/蛇初始移动方向 public bool live;/蛇存活状态 int number;/蛇身节点个数 int speed = 120;/蛇的初始速度 public int Speed/Speed属性 get return speed; set speed = value; public Direction Direction/Direction的属性 get return direction; set dir

14、ection = value; public bool Live/Live的属性 get return live; set live = value; public Point Body/Body属性 get return body; public Snake()/蛇类的构造器初始值 Point node1 = new Point(100, 50); Point node2 = new Point(90, 50); body0 = node1; body1 = node2; number = 2; direction = Direction.right; live = true; public

15、 void Move()/蛇的移动 for (int i = this.number - 1; i > 0; i-)/蛇移动的方式 bodyi = bodyi - 1; switch (this.direction)/蛇移动的方向 case Direction.up: body0.Y -= side; break; case Direction.down: body0.Y += side; break; case Direction.left: body0.X -= side; break; case Direction.right: body0.X += side; break; if

16、 (body0.X < 10 | body0.X > 537 | body0.Y < 10 | body0.Y > 346)/蛇撞四壁挂 this.live = false; for (int i = 1; i <= number - 1; i+) if (body0.X = bodyi.X && body0.Y = bodyi.Y) this.live = false; public void Eat(Food food)/蛇吃食物 Label label2 = new Label(); bodynumber = food.Position; t

17、his.number+;/长度加 score += 2; label2.Text = Convert.ToString(score); public void Draw(Graphics g)/绘制蛇 SolidBrush RedBrush = new SolidBrush(Color.Red); g.DrawEllipse(Pens.Red, body0.X, body0.Y, side, side); g.FillEllipse(RedBrush, body0.X, body0.Y, side, side); for (int i = 1; i <= number - 1; i+)

18、g.DrawRectangle(Pens.Red, bodyi.X, bodyi.Y, side, side); g.FillRectangle(RedBrush, bodyi.X, bodyi.Y, side, side); if (this.live = false) g.DrawString("Game Over!", new Font("宋体", 36, FontStyle.Bold), RedBrush, new Point(100, 150); public void resetSnake()/重新设置蛇 Point node1 = new Point(100, 320); Point node2 = new Point(90, 320); body1 = node1; body0 = node2; number = 2; direction = D