```cpp
# include <stdio.h>
# include <string.h>
# include <windows.h>
# include <stdlib.h>
# include <conio.h>
# include <time.h>
# include <math.h>
# include<iostream>
using namespace std;
#pragma warning(disable:4996)
#define de_lenth 5//蛇初始长度
#define Row_max 20//地图行
#define Line_max 30//地图列
char map[Row_max][Line_max];
int snake[Row_max][Line_max];
int Head_x = Line_max / 2;
int Head_y = Row_max / 2;
int Tail_x;
int Tail_y;
int Head_v = 5;//头部移动
int timen=5;//延时程度(蛇运动速度)
int food_x;
int food_y;
int score=0;//分数
char direct = 's';//蛇的运动方向
void Creatmap(char map[Row_max][Line_max]);
void Creatsnake(int snake[Row_max][Line_max]);
void Creatfood(char map[Row_max][Line_max], int snake[Row_max][Line_max]);
bool Judgewall(int Head_y, int Head_x);
void printmap(char map[Row_max][Line_max], int snake[Row_max][Line_max]);
void Late();
void Run(char map[Row_max][Line_max], int snake[Row_max][Line_max]);
void Movetail();
bool Eatfood(char map[Row_max][Line_max]);
void Result();
void Creatmap(char map[Row_max][Line_max]) {//画地图
for (int i = 0; i <= Line_max - 1; ++i){
map[Row_max - 1][i] = '#';
map[0][i] = '#';
}
for (int i = 1; i <= Row_max - 2; ++i) {
map[i][0] = '#';
map[i][Line_max - 1] = '#';
}
}
void Creatsnake(int snake[Row_max][Line_max]) {//画蛇
int n = de_lenth;
for (int i = Head_y; i >= Head_y - 5; --i) {
snake[i][Head_x] = n--;
if (i == Head_y - 5) {//给蛇尾巴赋位置
Tail_y = i;
Tail_x = Head_x;
}
}
}
void Creatfood(char map[Row_max][Line_max], int snake[Row_max][Line_max]) {//肯定减2啊傻逼
do{
food_x = rand() % (Line_max - 2) + 1;
food_y = rand() % (Row_max - 2) + 1;
} while (snake[food_y][food_x] != 0||map[food_y][food_x]=='#');
map[food_y][food_x] = '*';
}
bool Eatfood(char map[Row_max][Line_max]) {//判断是否吃到食物
if (map[Head_y][Head_x] == '*'){
map[Head_y][Head_x] = ' ';
return true;
}
else return false;
}
bool Judgewall(int Head_y,int Head_x) {//判断是否撞墙
if (Head_x == 0 || Head_x == Line_max - 1 || Head_y == 0 || Head_y == Row_max - 1)
return false;
else return true;
}
void printmap(char map[Row_max][Line_max], int snake[Row_max][Line_max]) {
for (int i = 0; i <= Row_max-1; ++i) {
for (int j = 0; j <= Line_max-1; ++j) {
//地图和蛇一起打印
if (snake[i][j] == 0)cout << map[i][j];
else {
if (snake[i][j] == Head_v)cout << "Q";
else cout << "*";
}
}
cout << endl;
}
}
void Movetail() {//移动尾巴
if (snake[Tail_y][Tail_x] + 1 == snake[Tail_y + 1][Tail_x]) {
snake[Tail_y][Tail_x] = 0;
++Tail_y;
}
else if (snake[Tail_y][Tail_x] + 1 == snake[Tail_y - 1][Tail_x]) {
snake[Tail_y][Tail_x] = 0;
--Tail_y;
}
else if (snake[Tail_y][Tail_x] + 1 == snake[Tail_y][Tail_x + 1]) {
snake[Tail_y][Tail_x] = 0;
++Tail_x;
}
else {
snake[Tail_y][Tail_x] = 0;
--Tail_x;
}
}
void Result() {
system("cls");
cout << "Game Over!" << endl;
cout << "Your score is " << score * 10 << " !" << endl << "Press any key to exit!" << endl;
getch();
}
void Run(char map[Row_max][Line_max], int snake[Row_max][Line_max]) {//蛇的移动
/*
上 -32 0xffffffe0 72 H
下 -32 0xffffffe0 80 P
左 -32 0xffffffe0 75 K
右 -32 0xffffffe0 77 M
*/
//方向键为组合键
char ch, sh;
while (1) {
if (Judgewall(Head_y,Head_x)) {
if (kbhit()) {//kbhit()函数判断键盘是否敲击，头文件"conio.h"
ch=getch();
if (ch == -32) {
sh=getch();
if (direct == 'a') {
if (sh == 'M')continue;
}
else if (direct == 'd') {
if (sh == 'K')continue;
}
else if (direct == 'w') {
if (sh == 'P')continue;
}
else {
if (sh == 'H')continue;
}
//转头
switch (sh) {
case'H':direct = 'w';
break;
case'P':direct = 's';
break;
case'K':direct = 'a';
break;
case 'M':direct = 'd';
break;
}
}
else {
if (direct == 'a') {
if (ch == 'd' || ch == 'D')continue;
}
else if (direct == 'd') {
if (ch == 'a' || ch == 'A')continue;
}
else if (direct == 'w') {
if (ch == 's' || ch == 'S')continue;
}
else {
if (ch == 'w' || ch == 'W')continue;
}
switch (ch) {
case 'a':case 'A': direct = 'a'; break;
case 'w':case 'W': direct = 'w'; break;
case 's':case 'S': direct = 's'; break;
case 'd':case 'D': direct = 'd'; break;
}
}
}
//蛇动一步
if (direct == 'a') {
if (snake[Head_y][Head_x - 1] != 0)return;//吃到自己
--Head_x;
if (Eatfood(map)) {//如果吃到了食物，尾巴不动，并加分数
++score;
snake[Head_y][Head_x] = ++Head_v;
Creatfood(map, snake);
}
else {//没吃到，只移动头和尾巴
snake[Head_y][Head_x] = ++Head_v;
Movetail();
}
}
else if (direct == 'd') {
if (snake[Head_y][Head_x + 1] != 0)return;
++Head_x;
if (Eatfood(map)) {
++score;
snake[Head_y][Head_x] = ++Head_v;
Creatfood(map, snake);
}
else {
snake[Head_y][Head_x] = ++Head_v;
Movetail();
}
}
else if (direct == 'w') {
if (snake[Head_y - 1][Head_x] != 0)return;
--Head_y;
if (Eatfood(map)) {
++score;
snake[Head_y][Head_x] = ++Head_v;
Creatfood(map, snake);
}
else {
snake[Head_y][Head_x] = ++Head_v;
Movetail();
}
}
else {
if (snake[Head_y + 1][Head_x] != 0)return;
++Head_y;
if (Eatfood(map)) {
++score;
snake[Head_y][Head_x] = ++Head_v;
Creatfood(map, snake);
}
else {
snake[Head_y][Head_x] = ++Head_v;
Movetail();
}
}
//gotoxy(30, 30);
//清屏
system("cls");
//打印一次
printmap(map, snake);
//延时
Late();
}
else return;
}
}
void Late() {//延时函数
for (int i = 0; i <= pow(22, timen); ++i)
;
}
int main() {
cout << "Press any key to start this game!" << endl;
getch();
Creatsnake(snake);
Creatmap(map);
Creatfood(map, snake);
Run(map, snake);
Result();
}
```
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C++ 贪吃蛇代码（简易版）
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