有一些bug没有解决，后续跟新

背景图片和全局变量放在头文件里

#pragma once
#define DEF_SNAKE_LONG 20
char g_strGameBack[20][48] = {"▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇                                          ▇\n","▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇\n" };// 蛇的方向
enum {to_east = 2, to_west = -2, to_north = -1, to_south = 1};// 蛇数组
int g_arrSnake[DEF_SNAKE_LONG][3] = { 0 };// 蛇的方向
int g_nSnakeDir = 1;// 食物标记
bool g_bIsProFood = true;// 蛇的长度
int g_nSnakeLen = 2;// 食物的随机坐标
int g_nrow = 0;
int g_ncol = 0;
int g_nScore = 0;

#include "head.h"
#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
#include<time.h>
#include<Windows.h>
#include<mmstream.h>
#pragma comment(lib,"winmm.lib")// 显示首页
void FirstPage();
// 播放音乐
void MyPlaySound();
// 停止播放音乐
void MyStopSound();
// 画背景图片
void ShowBackground();
// 为蛇产生一个随机的位置
void SetSnakeRandPos();
// 画蛇
void DrawSnake();
// 蛇移动
void SnakeMove();
// 销毁蛇
void DropSnake();
// 改变蛇方向
void ChangeDir();
// 蛇的死亡判断
bool IsSnakeDie();
// 产生新的食物
void ProduceFood();
// 蛇变长
void SnakeGrowUp();
// 计分
void Score();int main()
{char chInput;// 播放音乐MyPlaySound();// 显示首页FirstPage();// 为蛇产生一个随机的位置SetSnakeRandPos();while (1){chInput = _getch();if (chInput == ' '){break;}}// 停止播放MyStopSound();// 清理屏幕system("cls");// 为蛇产生一个随机位置SetSnakeRandPos();ShowBackground();// 游戏界面while (1){system("cls");// 产生食物ProduceFood();// 判断蛇与食物关系SnakeGrowUp();// 监听键盘状态ChangeDir();// 检测蛇与背景的碰撞if (!IsSnakeDie()){printf("snake die\n");break;}// 蛇动SnakeMove();// 显示背景ShowBackground();Score();Sleep(1000);	}return 0;
}// 显示首页
void FirstPage()
{printf("\n\n\n\n");printf("\t\t\t  《欢迎进入贪吃蛇世界》\n\n");printf("\t\t\t    《按空格键开始游戏》\n");printf("\t\t\t《w a s d 控制蛇的方向》\n");
}// 播放音乐
void MyPlaySound()
{PlaySound(L"1.wav", NULL, SND_FILENAME | SND_ASYNC);}// 停止播放音乐
void MyStopSound()
{PlaySound(NULL, 0, 0);
}// 显示背景
void ShowBackground()
{system("cls");for (int i = 0; i < 20; i++)printf(g_strGameBack[i]);}// 随机产生蛇的初始位置
void SetSnakeRandPos()
{int nX = -1;int nY = -1;// 产生随机数srand((unsigned int)time(NULL));  //种种子nX = rand() % 19 + 1;nY = rand() % 18 + 1;g_arrSnake[0][0] = nY;g_arrSnake[0][1] = nX*2;g_arrSnake[0][2] = to_east;g_arrSnake[1][0] = nY;g_arrSnake[1][1] = nX*2+ 2;g_arrSnake[1][2] = to_east;g_arrSnake[2][0] = nY;g_arrSnake[2][1] = nX*2 + 4;g_arrSnake[2][2] = to_east;}// 画蛇
void DrawSnake()
{for (int i = 0; g_arrSnake[i][0] != 0; i++){// 只复制两个字符(去掉结尾\0)strncpy(&g_strGameBack[g_arrSnake[i][0]][g_arrSnake[i][1]],"▇", 2);}
}// 蛇移动
void SnakeMove()
{// 销毁原来蛇背景DropSnake();for (int i = DEF_SNAKE_LONG - 1; i >= 1; i--){// 过滤掉没有的蛇身if (g_arrSnake[i][1] == 0)continue;g_arrSnake[i][0] = g_arrSnake[i - 1][0];g_arrSnake[i][1] = g_arrSnake[i - 1][1];g_arrSnake[i][2] = g_arrSnake[i - 1][2];}// 处理蛇头g_arrSnake[0][2] = g_nSnakeDir;// 东西移动if (to_west == g_arrSnake[0][2] || to_east == g_arrSnake[0][2])g_arrSnake[0][1] += g_arrSnake[0][2];// 南北移动elseg_arrSnake[0][0] += g_arrSnake[0][2];// 画蛇DrawSnake();
}// 销毁蛇
void DropSnake()
{for (int i = 0; g_arrSnake[i][0] != 0; i++){// 只复制两个字符(去掉结尾\0)strncpy(&g_strGameBack[g_arrSnake[i][0]][g_arrSnake[i][1]], "  ", 2);}
}void ChangeDir()
{// 监听键盘输入if (GetAsyncKeyState('W') && g_arrSnake[0][2]!=to_south){g_nSnakeDir = to_north;}else if (GetAsyncKeyState('S') && g_arrSnake[0][2]!= to_north){g_nSnakeDir = to_south;}else if (GetAsyncKeyState('A') && g_arrSnake[0][2]!=to_east){g_nSnakeDir = to_west;}else if (GetAsyncKeyState('D') && g_arrSnake[0][2]!=to_west){g_nSnakeDir = to_east;}
}bool IsSnakeDie()
{// 判断蛇头下一个位置是否为方块if (to_west == g_arrSnake[0][2] || to_east == g_arrSnake[0][2]){if (strncmp(&g_strGameBack[g_arrSnake[0][0]][g_arrSnake[0][1] + g_arrSnake[0][2]], "▇", 2) == 0)return false;}else{if (strncmp(&g_strGameBack[g_arrSnake[0][0] + g_arrSnake[0][2]][g_arrSnake[0][1]], "▇", 2) == 0)return false;}return true;
}// 产生新的食物
void ProduceFood()
{srand((unsigned)time(NULL));if (!g_bIsProFood)return;while (1){g_nrow = rand() % 18 + 1;g_ncol = rand() % 20 + 1;bool flag = true;for (int i = 0; g_arrSnake[i][0] != 0; i++){if (g_nrow == g_arrSnake[i][0] && g_ncol == g_arrSnake[i][1]){flag = false;}}if (flag)break;}strncpy(&g_strGameBack[g_nrow][g_ncol], "★", 2);g_bIsProFood = false;}void SnakeGrowUp()
{// 蛇头坐标跟食物坐标是否相等if (g_nrow == g_arrSnake[0][0] &&  g_ncol*2 == g_arrSnake[0][1]){// 判断尾巴的方向if (to_east == g_arrSnake[g_nSnakeLen][2]){g_arrSnake[g_nSnakeLen + 1][0] = g_arrSnake[g_nSnakeLen][0];g_arrSnake[g_nSnakeLen + 1][1] = g_arrSnake[g_nSnakeLen][1] - 2;g_arrSnake[g_nSnakeLen + 1][2] = g_arrSnake[g_nSnakeLen][2];}if (to_west == g_arrSnake[g_nSnakeLen][2]){g_arrSnake[g_nSnakeLen + 1][0] = g_arrSnake[g_nSnakeLen][0];g_arrSnake[g_nSnakeLen + 1][1] = g_arrSnake[g_nSnakeLen][1] + 2;g_arrSnake[g_nSnakeLen + 1][2] = g_arrSnake[g_nSnakeLen][2];}if (to_north == g_arrSnake[g_nSnakeLen][2]){g_arrSnake[g_nSnakeLen + 1][0] = g_arrSnake[g_nSnakeLen][0] + 1;g_arrSnake[g_nSnakeLen + 1][1] = g_arrSnake[g_nSnakeLen][1];g_arrSnake[g_nSnakeLen + 1][2] = g_arrSnake[g_nSnakeLen][2];}if (to_south == g_arrSnake[g_nSnakeLen][2]){g_arrSnake[g_nSnakeLen + 1][0] = g_arrSnake[g_nSnakeLen][0] - 1;g_arrSnake[g_nSnakeLen + 1][1] = g_arrSnake[g_nSnakeLen][1];g_arrSnake[g_nSnakeLen + 1][2] = g_arrSnake[g_nSnakeLen][2];}g_bIsProFood = true;g_nSnakeLen++;g_nScore++;}
}void Score()
{COORD rd;rd.X = 55;rd.Y = 8;// 设置光标位置SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), rd);// 打印printf("分数");rd.X = 55;rd.Y = 9;// 设置光标位置SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), rd);printf("%d", g_nScore);}