c语言实现贪吃蛇

#include<conio.h>

#include<stdio.h>

#include<stdlib.h>
#include<time.h>
#include<windows.h>
#define R 24
#define H 24
#define W 48
#define UP 'w'  //上
#define DOWN 's'  //下
#define LEFT 'a'  //左
#define RIGHT 'd'  //右
void getfood();//产生食物 
void start();//初始界面 
void gameover();//游戏结束 
void play();//游戏过程 
void gotoxy(int ,int);//定位坐标 
void wall();//墙；
void gamerule();
void menu();//游戏菜单 
void chushihua();//初始化蛇 
void move();
void print();//打印蛇 
void HideCursor();//隐藏光标 
void turn(char );//改变方向 
void getfood();//随机获取食物 
void eatfood();//吃食物 
int die();//判断是否死亡 
struct Snake
 {
  int x[100];//x[0]表示蛇尾的横坐标 
  int y[100];//y[0]表示蛇尾的纵坐标
  int length;//蛇的长度 
  int speed;//蛇的速度 
  int count;//蛇吃的食物数量 
 }snake;
struct Food
{
 int x;
 int y;
}food;
 int i,j;
    int a[2];//a[1]储存蛇尾的纵坐标，a[0]储存蛇尾的横坐标 
void HideCursor()//隐藏光标
{
 CONSOLE_CURSOR_INFO cursor_info = {1, 0}; 
 SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE), &cursor_info);
}
void toxy(int x, int y)//将光标移动到X,Y坐标处
{
COORD pos = { x , y };
HANDLE Out = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleCursorPosition(Out, pos); 
}
void start()//特效
{
 int x,y,i,j;
 system("color 72");
 for (i=0;i<10;i++)  
    {  
        x=i;  
        for (y=x;y<24-x;y++)  
        {  
            toxy(2*x,y);
            printf("0 ");  
        }  
        x=(23-i);  
        for (y=i;y<=x;y++)  
        {  
            toxy(2*x,y);
            printf("0 ");   
        }  
        x=i;  
        for (y=x;y<24-x;y++)  
        {  
            toxy(2*y,x);
            printf("0 ");  
        }  
        x=(23-i);  
        for (y=i;y<=x;y++)  
        {  
            toxy(2*y,x);
            printf("0 ");  
        }  
        Sleep(100);  
    }  
    for (i=0;i<10;i++)  
    {  
        x=i;  
        for (y=x;y<R-x;y++)  
        {  
            toxy(2*x,y);
            printf("  ");  
        }  
        x=(23-i);  
        for (y=i;y<=x;y++)  
        {  
            toxy(2*x,y);
            printf("  ");   
        }  
        x=i;  
        for (y=x;y<R-x;y++)  
        {  
            toxy(2*y,x);
            printf("  ");  
        }  
        x=(23-i);  
        for (y=i;y<=x;y++)  
        {  
            toxy(2*y,x);
            printf("  ");  
        }  
        Sleep(100);  
    }  
        
}
void wall()//边界
{
 system("color 74");
 system("cls");
 int i,j,map[H][W];
 for(i=0;i<H;i++)
 {
  for(j=0;j<W;j++)
  {
   if(i==0||i==H-1||j==0||j==W-1)
   {
    map[i][j]='0';
   }
   else
   {
    map[i][j]=' ';
   }
  }
 }
 for(i=0;i<H;i++)
 {
  for(j=0;j<W;j++)
  {
   //toxy(j,i);
   printf("%c",map[i][j]);
  }
  printf("\n");
 }
}
void menu()//菜单
{
 toxy(20,5);
 printf("贪吃蛇");
 toxy(19,7);
 printf("1.开始游戏");
 toxy(19,9);
 printf("2.游戏规则");
 toxy(19,11);
 printf("3.退出游戏");
 toxy(19,13);
 printf("By---Sriven");
}
void gamerule()
{
 system("cls");
 toxy(20,11);
 printf("游戏规则");
 start();
 system("cls");
 wall();
 toxy(1,1);
 printf("1.用w，s，a，d控制贪吃蛇的方向");
 toxy(1,3);
 printf("2.当贪吃蛇吃到食物后，\n贪吃蛇身子变长");
 toxy(1,5); 
 printf("3.如果贪吃蛇的头部碰到墙壁或者碰到自己的身体，\n则游戏结束");
 getch();
 toxy(20,11);
 printf("贪吃蛇");
 start();
}
void gameover()
{
 system("cls");
 system("color 71");
 wall();
 toxy(20,11);
 printf("BY-BY");
 start(); 
 exit(0);
 getch();
}
void chushihua()//初始化蛇 
{
 snake.length=3;
 snake.speed=500;
 snake.count=0; 
 snake.x[0]=8;
 snake.y[0]=10;
 for(i=1;i<snake.length;i++)
 {
  snake.x[i]=snake.x[i-1]+1;
  snake.y[i]=snake.y[i-1];
 }
}
void move()
{
 toxy(snake.x[0],snake.y[0]);
 printf(" ");
 for(i=1;i<snake.length;i++)//将蛇的前一节坐标赋给后一节 
 {
  snake.x[i-1]=snake.x[i];
  snake.y[i-1]=snake.y[i];
 }
 //snake.x[snake.length-1]=snake.x[snake.length-2]+2;
 //snake.y[snake.length-1]=snake.y[snake.length-2];
}
void print()//打印蛇 
{
 for(i=0;i<snake.length;i++)
 {
  toxy(snake.x[i],snake.y[i]);
  if(i==0)
  {
   printf("+");
  }
  else if(i==snake.length-1)
  {
   printf("+");
  }
  else
  {
   printf("+");
  }
 }
 system("color 71");
 toxy(50,11);
 printf("按0结束游戏");
 toxy(50,0);
 printf("分数：%d",10*snake.count);
 toxy(50,2);
 printf("当前速度为：%d",snake.speed);
 toxy(50,5);
 printf("1.用w，s，a，d控制贪吃蛇的方向");
 toxy(50,7);
 printf("2.当贪吃蛇吃到食物后，贪吃蛇身子变长,每吃5个食物，速度增加");
 toxy(50,9);
 printf("3.如果贪吃蛇的头部碰到墙壁或者碰到自己的身体，则游戏结束");
 toxy(60,15);
 printf("By---Sriven");
}
void turn(char direction )//获取方向 
{
 if(direction=='w')
 {
  snake.y[snake.length-1]--;
 }
 else if(direction=='s')
 {
  snake.y[snake.length-1]++;
 }
 else if(direction=='a')
 {
  snake.x[snake.length-1]-=1;
 }
 else if(direction=='d')
 {
  snake.x[snake.length-1]+=1;
 }
}
void getfood()
{
 //wall();
 srand(time(NULL));
 while(1)
 {
  food.x=rand()%44+2;
  food.y=rand()%21+2;
  for(i=0;i<snake.length;i++)
  {
   if(food.x==snake.x[i]&&food.y==snake.y[i])
   {
    break;
   }
  }
  if(i==snake.length)
  {
   toxy(food.x,food.y);
   printf("*");break;
  }
 }
}
void eatfood()
{
 if(food.x==snake.x[snake.length-1]&&food.y==snake.y[snake.length-1])
 {
  snake.length++;
  snake.count++;
  for(i=snake.length-1;i>=1;i--)
  {
   snake.x[i]=snake.x[i-1];
   snake.y[i]=snake.y[i-1];
  }
  snake.x[0]=a[0];
  snake.y[0]=a[1];
  if(snake.count%5==0)
  {
   if(snake.count>=40)
   {
    snake.speed=100;
   }
   else
   snake.speed-=50;
  }
     getfood();
 } 
}
int die()
{
 int flag=0;
 for(i=0;i<snake.length-1;i++)
 {
  if(snake.x[snake.length-1]==snake.x[i]&&snake.y[snake.length-1]==snake.y[i])
  {
   flag=1;
  }
 }
 if(snake.x[snake.length-1]==0||snake.x[snake.length-1]==W-1||snake.y[snake.length-1]==0||snake.y[snake.length-1]==H-1)
 {
  flag=1;
 }
 return(flag);
}
void play()
{
 toxy(20,11);
 printf("开始游戏");
 start();
 system("cls");
 char t='d';
 wall();
 chushihua(); 
 getfood();
 while(1)
 {
  a[0]=snake.x[0];
  a[1]=snake.y[0];
  if(kbhit())//判断是否有按键 
   {
    t=getch();
   }
   if(t=='0')break;
   move();
   turn(t);
   eatfood();
   print();
   if(die())
   {
    toxy(20,12);
    printf("Game over!");
    Sleep(2000);
    break;
   }
   Sleep(snake.speed);
   }
}
main()
{
 system("color 72");
 HideCursor();//隐藏光标 
 toxy(20,11);
 printf("贪吃蛇");
 start();
 system("color 70");
  
 do
 {
  system("cls");
  HideCursor();
  char n;
  wall();
  menu();
  n=getch();
  switch(n)
  {
   case '1':play();break;
   case '2':gamerule();break;
   case '3':gameover();break;
   default:printf("Please input 1~3:");break;
  }
 }while(1);//永远为真 
}