贪吃蛇代码

#define N 200
#include<graphics.h>
#include<stdlib.h>
#include<dos.h>
#define LEFT 0x4b00
#define RIGHT 0x4d00
#define DOWN 0x5000
#define UP 0x4800
#define Esc 0x011b
int i, key;
int score = 0;
int gamespeed = 100000;/*这个是游戏的速度，这个要根据不同机器的配置进行设定，値越大速度越慢*/

struct Food
{
int x, y, yes;
}food;

struct Snake
{
int x[N];
int y[N];
int node;
int direction;
int life;
}snake;

void Init();
void Close();
void DrawK();
void GameOver();
void GamePlay();
void PrScore();

void main()
{
Init();
DrawK();
GamePlay();
Close();
}

void Init()
{
int gd = DETECT, gm;
initgraph(&gd, &gm, "c:\\turboc2\\");
cleardevice();
}

void DrawK()
{
setcolor(11);
setlinestyle(SOLID_LINE, 0, THICK_WIDTH);
for(i=50; i <= 600; i+= 10)
{
   rectangle(i, 40, i+10, 49);
   rectangle(i, 451, i+10, 460);
}
for(i=40; i <= 450; i+=10)
{
   rectangle(50, i, 59, i+10);
   rectangle(601, i, 610, i+10);
}
}

void GamePlay()
{
randomize();
food.yes = 1;
snake.life = 0;
snake.direction = 1;
snake.x[0] = 100;
snake.y[0] = 100;
snake.x[1] = 110; snake.y[1] = 100;
snake.node = 2;
PrScore();
while(1)
{
   while(!kbhit())
   {
    if(food.yes==1)
    {
     food.x = rand()%400 + 60;
     food.y = rand()%350 + 60;
     while(food.x%10!= 0)
     {
      food.x++;
     }
     while(food.y%10!=0)
      food.y++;
     food.yes = 0;
    }
    if(food.yes == 0)
    {
     setcolor(GREEN);
     rectangle(food.x, food.y, food.x+10, food.y-10);
    }
    for(i = snake.node-1; i>0; i--)
    {
     snake.x[i] = snake.x[i-1];
     snake.y[i] = snake.y[i-1];
    }
    switch(snake.direction)
    {
    case 1: snake.x[0]+=10;break;
    case 2: snake.x[0]-=10;break;
    case 3: snake.y[0]-=10;break;
    case 4: snake.y[0]+=10;break;
    }
    for(i=3; i<snake.node; i++)
    {
     if(snake.x[i]==snake.x[0] && snake.y[i] == snake.y[0])
     {
      GameOver();
      snake.life = 1;
      break;
     }
    }
    if(snake.x[0]<55 || snake.x[0]>595 || snake.y[0] < 55 || snake.y[0] > 455)
    {
     GameOver();
     snake.life = 1;
    }
    if(snake.life == 1)
     break;
    if(snake.x[0] == food.x && snake.y[0] == food.y)
    {
     setcolor(0);
     rectangle(food.x, food.y, food.x+10, food.y-10);
    /* snake.x[snake.node] -= 20;
     snake.y[snake.node] -= 20;*/
     snake.node++;
     food.yes = 1;
     score += 10;
     if(gamespeed > 0 && score!=0 && score%100 == 0)
     {
      gamespeed -= 1000;
      for(i = 2; i<snake.node; i++)
      {
       setcolor(0);
       rectangle(snake.x[i],snake.y[i],snake.x[i]+10,snake.y[i]-10);
      }
      snake.node = 2;
     }
     PrScore();
    }
    setcolor(4);
    for(i=0; i<snake.node; i++)
     rectangle(snake.x[i], snake.y[i], snake.x[i]+10, snake.y[i]-10);
    delay(gamespeed);
    setcolor(0);
    rectangle( snake.x[snake.node-1], snake.y[snake.node-1],
     snake.x[snake.node-1]+10, snake.y[snake.node-1]-10);
   }
   if(snake.life == 1)
    break;
   key = bioskey(0);
   if(key == Esc)
    break;
   else if(key == UP && snake.direction != 4)
    snake.direction = 3;
   else if(key == RIGHT && snake.direction != 2)
    snake.direction = 1;
   else if(key == LEFT && snake.direction != 1)
    snake.direction = 2;
   else if(key == DOWN && snake.direction != 3)
    snake.direction = 4;
}
}

void GameOver()
{
cleardevice();
PrScore();
setcolor(RED);
settextstyle(0,0,4);
outtextxy(200,200,"GAME OVER");
getch();
}

void PrScore()
{
char str[10];
setfillstyle(SOLID_FILL, YELLOW);
bar(50, 15, 220, 35);
setcolor(6);
settextstyle(0,0,2);
sprintf(str,"score:%d",score);
outtextxy(55, 20, str);
}

void Close()
{
getch();
closegraph();
}