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 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 listsnakebody = 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
}
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
