5_23_贪吃蛇（成功）
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修复上一篇中的bug
1.蛇的尾巴删除后，更新地图
2.设计链表使得蛇链接起来，从而在尾部删除之后更新新的尾部节点，即tail=tail->next;
function.h
#pragma once
#include<stdio.h>
#include<time.h>
#include<stdlib.h>
#include<Windows.h>
#include<conio.h>
#include<iostream>
#include<map>
#include<string>
using namespace std;
#define WIDTH 80
#define HEIGHT 25//地图的宽和高
#define SPEED 100
typedef enum
WALL,
EMPTY,
SNAKE_BODY,
FOOD
Mapelement;//定义一个枚举类型Mapelement
typedef struct
public:
Mapelement **elements;
Map;//Map的结构体成员是一个Mapelement数组
typedef struct Snake
int x, y;//记录蛇的位置
int flag;//记录蛇是否死亡
struct Snake* next;//记录蛇移动方向
int len;//记录得分
char way;
Snake;
void initmap(Map*& map);//初始化地图
void mapdisplay(Map*& map);//地图打印函数
void drawFood(Map*& map);//生成食物
void initSnake(Snake*& head,Snake*& tail); //初始化蛇身
void updateSnake(Map*& map,Snake*& head,Snake*& tail); //更新绘制地图上的蛇
void ctrlSnake(Snake*& head);//控制蛇移动
function.cpp
#include"function.h"
void initmap(Map*& map)
for (int i = 0; i < HEIGHT; i++)
for (int j = 0; j < WIDTH; j++)
if (i == 0 || j == 0 || i == HEIGHT - 1 || j == WIDTH - 1)
map->elements[i][j] = WALL;
else
map->elements[i][j] = EMPTY;
map->elements[1][1] = SNAKE_BODY;
map->elements[1][2] = SNAKE_BODY;
void mapdisplay(Map*& map)
system("cls");
for (int i = 0; i < HEIGHT; i++)
for (int j = 0; j < WIDTH; j++)
switch (map->elements[i][j])
case EMPTY:
printf(" ");
break;
case SNAKE_BODY:
printf("*");
break;
case FOOD:
printf("#");
break;
case WALL:
printf("+");
printf("\\n");
void drawFood(Map*& map)
int res = 1;
srand((unsigned)time(NULL));
while (res)
int x, y;
x = rand() % (HEIGHT - 3) + 1;
y = rand() % (WIDTH - 3) + 1;
if (map->elements[x][y] != SNAKE_BODY)
map->elements[x][y] = FOOD;
res = 0;
void initSnake(Snake*& head,Snake*& tail)
head->x = 1;
head->y = 2;
tail->flag = head->flag = 1;
head->way = \'d\';
tail->next = head;
tail->len = head->len = 2;
head->next = NULL;
tail->x = 1;
tail->y = 1;
tail->way = \'d\';
void updateSnake(Map*& map, Snake*& head, Snake*& tail)
Snake* snake = (Snake*)malloc(sizeof(Snake));
switch (head->way)
case \'a\':
snake->y = head->y - 1;
snake->x = head->x;
break;
case \'d\':
snake->y = head->y + 1;
snake->x = head->x;
break;
case \'s\':
snake->y = head->y;
snake->x = head->x + 1;
break;
case\'w\':
snake->y = head->y;
snake->x = head->x - 1;
break;
snake->way = head->way;
snake->len = head->len;
head->next = snake;
head = snake;
head->next = NULL;
if (head->y >= WIDTH || head->x >= HEIGHT || head->x <= 0 || head->y <= 0)
head->flag = 0;
return;
if (map->elements[head->x][head->y] == WALL || map->elements[head->x][head->y] == SNAKE_BODY)
head->flag = 0;
return;
if (map->elements[head->x][head->y] == FOOD)
map->elements[head->x][head->y] = SNAKE_BODY;
head->len++;
drawFood(map);
else
map->elements[head->x][head->y] = SNAKE_BODY;
map->elements[tail->x][tail->y] = EMPTY;
Snake* a = tail;
tail = tail->next;
free(a);
void ctrlSnake(Snake*& head)
char key = 0;
if (_kbhit())
key = _getch();
switch (key)
case \'a\':
if (head->way == \'d\')
break;
head->way = \'a\';
break;
case \'d\':
if (head->way == \'a\')
break;
head->way = \'d\';
break;
case \'s\':
if (head->way == \'w\')
break;
head->way = \'s\';
break;
case\'w\':
if (head->way == \'s\')
break;
head->way = \'w\';
break;
main.cpp
#include"function.h"
int main()
printf("欢迎来到贪吃蛇小游戏，请输入用户名\\n");
string users;
cin >> users;
map<int, string>bangdan;
bangdan.insert(pair<int, string>(1000, "wanglingxiao"));
printf("请输入1开始游戏\\n");
int res;
scanf_s("%d", &res);
if (res != 1) return 0;
while (1)
Snake* head = (Snake*)malloc(sizeof(Snake));
Snake* tail = (Snake*)malloc(sizeof(Snake));
Map* map = (Map*)malloc(sizeof(Map));
map->elements = (Mapelement**)malloc(HEIGHT * sizeof(Mapelement*));
if (map->elements == NULL)
// 内存分配失败的处理
free(map); // 释放先前分配的内存
return 1;
for (int i = 0; i < HEIGHT; i++)
map->elements[i] = (Mapelement*)malloc(WIDTH * sizeof(Mapelement));
if (map->elements[i] == NULL)
// 内存分配失败的处理
// 释放先前分配的内存
for (int j = 0; j < i; j++)
free(map->elements[j]);
free(map);
return 1;
initSnake(head, tail);
initmap(map);
drawFood(map);
while (head->flag)
mapdisplay(map);
Sleep(SPEED);
ctrlSnake(head);
updateSnake(map, head, tail);
// 现在 a->elements 可以正常使用了
// 释放内存
for (int i = 0; i < HEIGHT; i++)
free(map->elements[i]);
free(map);
system("cls");
std::cout << "本次得分：" << head->len - 2 << std::endl;
bangdan.insert(pair<int, string>(head->len - 2, users));
cout << "按a查看得分榜：" << endl;
char a;
cin >> a;
if (a == \'a\')
for (const auto& pair : bangdan)
std::cout << "姓名: " << pair.second << "得分: " << pair.first << std::endl;
Sleep(3000);
char yes;
printf("还想继续玩吗？,输入y或者n\\n");
std::cin >> yes;
if (yes == \'n\')break;
return 0;
python贪吃蛇
1 class point: 2 row=0 3 col=0 4 def __init__(self,row,col): 5 self.row=row 6 self.col=col 7 def copy(self): 8 return point(row=self.row,col=self.col) 9 #初始化框架 10 import pygame 11 import random 12 pygame.init() 13 width=800 14 height=600 15 ROW=30 16 COL=40 17 size=(width,height) 18 window=pygame.display.set_mode(size) 19 pygame.display.set_caption(‘mlhj‘) 20 head=point(row=random.randint(0,ROW-1),col=random.randint(0,COL-1)) 21 food=point(row=random.randint(0,ROW-1),col=random.randint(0,COL-1)) 22 quit=True 23 clock =pygame.time.Clock() 24 back_color=(255,255,255) 25 head_color=(255,0,0) 26 snake_color=(128,128,128) 27 food_color=(0,128,128) 28 snakes=[] 29 def rect(point,color): 30 cell_width=width/COL 31 cell_height=height/ROW 32 left=point.col*(cell_width) 33 top=point.row*(cell_height) 34 pygame.draw.rect(window, color, (left, top, cell_width, cell_height)) 35 pass
36 dir=‘left‘ 37 while quit: 38 for event in pygame.event.get(): 39 print(event) 40 if event.type==pygame.QUIT: 41 quit = False 42 elif event.type==pygame.KEYDOWN: 43 if event.key==273: 44 if dir==‘left‘ or dir==‘right‘: 45 dir=‘up‘ 46 elif event.key==274: 47 if dir == ‘left‘ or dir == ‘right‘: 48 dir=‘down‘ 49 elif event.key == 275: 50 if dir == ‘up‘ or dir == ‘down‘: 51 dir = ‘right‘ 52 elif event.key == 276: 53 if dir == ‘up‘ or dir == ‘down‘: 54 dir = ‘left‘ 55 eat = (head.row==food.row and head.col==food.col) 56 snakes.insert(0,point.copy(head)) 57 if not eat: #如果没吃到，移动的时候就把尾巴给‘扔了’，如果迟到了食物，则会增加一节，这一节刚好就是需要pop的那一个位置 58 snakes.pop() 59 if eat: 60 food = point(row=random.randint(0, ROW - 1), col=random.randint(0, COL - 1)) 61 #碰到边界死亡 62 if head.col>40 or head.row<0 or head.row>30or head.col<0: 63 quit=False 64 #碰到自己的身体死亡 65 for snake in snakes: 66 if snake.row==head.row and snake.col==head.col: 67 quit=False 68 if dir==‘left‘: 69 head.col-=1 70 elif dir==‘right‘: 71 head.col+=1 72 elif dir==‘up‘: 73 head.row-=1 74 elif dir == ‘down‘: 75 head.row += 1 76 #渲染，将舌头蛇身食物等在界面上画出来 77 pygame.display.flip() 78 pygame.draw.rect(window,back_color,(0,0,width,height)) 79 rect(head,head_color) 80 rect(food,food_color) 81 for snake in snakes: 82 rect(snake,snake_color) 83 84 85 86 #设置帧频 87 clock.tick(10)
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