（地图大小为25*25，蛇初始位置为数组的map[3][3]~map[3][6],蛇头为map[3][6],方向向右）
#include <iostream>
#include <Windows.h>
#include <cstdlib>
#include <time.h>
#include <conio.h>
using namespace std;
#define MAX_WIDE 25
#define MAX_HIGH 25
char map[MAX_HIGH][MAX_WIDE]; //地图大小
struct node
{
int x, y;
};
node snack[(MAX_WIDE - 2)*(MAX_HIGH - 2)], food; //定义蛇身和食物坐标
int lenth, direct, live = 1; //蛇的长度，方向和存活
int speech = 200;
void initMap(node *n, int len) { //初始化地图
for (int i = 0; i < MAX_HIGH; i++)
for (int j = 0; j < MAX_WIDE; j++)
map[i][j] = ‘ ‘;
for (int i = 0; i < MAX_HIGH; i++) //设置左右的墙
map[i][0] = map[i][MAX_WIDE - 1] = ‘|‘;
for (int j = 0; j < MAX_WIDE; j++)
map[0][j] = map[MAX_HIGH - 1][j] = ‘-‘; //设置上下的墙
for (int j = 1; j < len; j++)
map[n[j].x][n[j].y] = ‘*‘; //设置蛇身
map[n[0].x][n[0].y] = ‘#‘; //设置蛇头
}
void showMap() { //输出数组map
system("cls"); //清屏
for (int i = 0; i < MAX_HIGH; i++) {
for (int j = 0; j < MAX_WIDE; j++) {
cout << map[i][j];
}
cout << endl;
}
}
void showFood() { //产生食物，坐标在map中且不为蛇上
srand((unsigned)time(NULL)); //食物的产生点随机
do {
food.x = rand() % MAX_WIDE;
food.y = rand() % MAX_HIGH;
} while (map[food.x][food.y] != ‘ ‘);
map[food.x][food.y] = ‘o‘;
}
int updataGame() { //更新数组
long start = clock();
int a, b; //暂存 移动后蛇头的位置
while (!_kbhit() && (clock() - start <= speech)); //直到有按键或者时间过了speech则跳出循环
if (_kbhit()) {
_getch(); //上、下、左、右键是二个字节的，取第二个字节分别为（72，80，75，77）
direct = _getch();
}
switch (direct)
{
case 72: //up
a = snack[0].x - 1;
b = snack[0].y;
break;
case 80: //down
a = snack[0].x + 1;
b = snack[0].y;
break;
case 75: //left
a = snack[0].x;
b = snack[0].y - 1;
break;
case 77: //right
a = snack[0].x;
b = snack[0].y + 1;
break;
default:
break;
}
if (a == 0 || a == MAX_HIGH - 1 || b == 0 || b == MAX_WIDE - 1) //撞墙
live = 0;
if (map[a][b] == ‘*‘) //撞自身
live = 0;
map[snack[0].x][snack[0].y] = ‘*‘; //将蛇头置为蛇身
map[snack[lenth - 1].x][snack[lenth - 1].y] = ‘ ‘; //蛇尾置为空
map[a][b] = ‘#‘; //更新蛇头
for (int i = lenth - 1; i > 0; i--) //更新蛇数组
snack[i] = snack[i - 1];
snack[0].x = a;
snack[0].y = b;
if (a == food.x && b == food.y) { //蛇吃了食物
map[snack[lenth - 1].x][snack[lenth - 1].y] = ‘*‘; //取消蛇尾置空
lenth++;
showFood(); //产生新食物
speech -= lenth; //加速
}
showMap();
return live;
}
int main() {
snack[0].x = 3;
snack[0].y = 6;
lenth = 4;
for (int i = 1; i < lenth; i++) {
snack[i].x = 3;
snack[i].y = snack[i - 1].y - 1;
}
direct = 77;
initMap(snack, lenth);
showFood();
showMap();
do {
updataGame();
} while (live);
cout << "得分为：" << lenth-4 << endl;
system("pause");
return 0;
}