#include <stdio.h>
#include <windows.h>
#include <conio.h>
#include <time.h>#define FrameX 4   //游戏窗口左上角的X轴坐标
#define FrameY 4   //游戏窗口左上角的Y轴坐标
#define Frame_height  20 //游戏窗口的高度
#define Frame_width   20 //游戏窗口的宽度int i, j;
int a[2];     //用于记住蛇尾坐标，其中a[0]、a[1]分别表示横、竖坐标//声明蛇的结构体
struct Snake
{int x[100];    //蛇的横坐标，其中x[0]表示蛇尾的横坐标，x[N-1]表示蛇头的横坐标int y[100];    //蛇的竖坐标，其中y[0]表示蛇尾的竖坐标，y[N-1]表示蛇头的竖坐标int count;    //蛇吃食物的个数int length;    //蛇的长度int speed;    //蛇的速度
};//声明食物的结构体
struct Food
{int x;     //食物的横坐标int y;     //食物的竖坐标
};/******光标移到指定位置**************************************************************/
void gotoxy(HANDLE hOut, int x, int y)
{COORD pos;pos.X = x;  //横坐标pos.Y = y;  //纵坐标SetConsoleCursorPosition(hOut, pos);
}/******设置文本为绿色*****************************************************************/
void Set_TextColor_Green(void)
{HANDLE Handle = GetStdHandle(STD_OUTPUT_HANDLE);SetConsoleTextAttribute(Handle, FOREGROUND_INTENSITY | FOREGROUND_GREEN);
}/******制作游戏窗口******************************************************************/
void make_frame()
{HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);  //定义显示器句柄变量gotoxy(hOut, FrameX + 2 * Frame_width + 3, FrameY + 13);  //打印选择菜单printf("Esc 退出游戏");gotoxy(hOut, FrameX + 2 * Frame_width + 3, FrameY + 15);printf("长按方向键：加速");gotoxy(hOut, FrameX, FrameY);       //打印框角printf("╔");gotoxy(hOut, FrameX + 2 * Frame_width - 2, FrameY);printf("╗");gotoxy(hOut, FrameX, FrameY + Frame_height);printf("╚");gotoxy(hOut, FrameX + 2 * Frame_width - 2, FrameY + Frame_height);printf("╝");for (i = 2; i<2 * Frame_width - 2; i += 2){gotoxy(hOut, FrameX + i, FrameY);printf("═");         //打印上横框}for (i = 2; i<2 * Frame_width - 2; i += 2){gotoxy(hOut, FrameX + i, FrameY + Frame_height);printf("═");         //打印下横框}for (i = 1; i<Frame_height; i++){gotoxy(hOut, FrameX, FrameY + i);printf("║");         //打印左竖框}for (i = 1; i<Frame_height; i++){gotoxy(hOut, FrameX + 2 * Frame_width - 2, FrameY + i);printf("║");         //打印右竖框}gotoxy(hOut, FrameX + Frame_width - 5, FrameY - 2);   //打印游戏名称 Set_TextColor_Green();        //设置蛇为绿色printf("贪吃蛇游戏");
}/******结束菜单*******************************************************************/
void over_game()
{system("cls");printf("\n\n\n\n\n\n\n\n\t\t\t\t游戏结束\n\n\n");Sleep(2000);getch();
}/******菜单信息***************************************************************/
print_information(HANDLE hOut, struct Snake *snake, struct Food *food)
{gotoxy(hOut, FrameX + 2 * Frame_width + 3, FrameY + 1);printf("level : %d", snake->count / 5 + 1);    //打印游戏等级gotoxy(hOut, FrameX + 2 * Frame_width + 3, FrameY + 3);printf("score : %d", 10 * snake->count);    //打印游戏得分gotoxy(hOut, FrameX + 2 * Frame_width + 3, FrameY + 5);printf("eat food : %d", snake->count);    //打印产生食物个数 gotoxy(hOut, FrameX + 2 * Frame_width + 3, FrameY + 7);printf("speed : %dms", snake->speed);    //打印游戏速度gotoxy(hOut, FrameX + 2 * Frame_width + 3, FrameY + 9);printf("foodX : %d", food->x);      //打印食物的横坐标gotoxy(hOut, FrameX + 2 * Frame_width + 3, FrameY + 11);printf("foodY : %d", food->y);      //打印食物的竖坐标
}/******初始化蛇**********************************************************************/
void init_snake(struct Snake *snake)
{snake->x[0] = FrameX + 2;     //初始化蛇的横坐标 snake->y[0] = FrameY + Frame_height / 2;  //初始化蛇的竖坐标 snake->speed = 300;      //初始化蛇的速度为300mssnake->length = 3;      //初始化蛇的长度为3节snake->count = 0;       //初始化蛇吃的个数为0for (i = 1; i<snake->length; i++){/* 依次得到蛇身、蛇头的坐标 */snake->x[i] = snake->x[i - 1] + 2;snake->y[i] = snake->y[i - 1];}
}/******移动蛇*************************************************************************/
void move_snake(HANDLE hOut, struct Snake *snake)
{gotoxy(hOut, snake->x[0], snake->y[0]);printf("  ");       /* 清除蛇尾*/for (i = 1; i<snake->length; i++){/* 后一节的坐标依次取代前一节的坐标 */snake->x[i - 1] = snake->x[i];snake->y[i - 1] = snake->y[i];}
}/******打印蛇*************************************************************************/
void print_snake(HANDLE hOut, struct Snake *snake)
{for (i = 0; i<snake->length; i++){gotoxy(hOut, snake->x[i], snake->y[i]);if (i == 0){printf("○");       //打印蛇尾}else if (i == snake->length - 1){printf("¤");       //打印蛇头}else{printf("⊙");       //打印蛇身}}
}/******随机产生食物*******************************************************************/
void get_food(HANDLE hOut, struct Snake *snake, struct Food *food)
{srand((unsigned)time(NULL));       //初始化随机数while (1){/* 产生食物的条件：1.在游戏窗口内 2.不在蛇的身上 */food->x = rand() % (Frame_width - 1);food->y = rand() % Frame_height;if (food->x == 0 || food->y == 0){continue;}food->x = 2 * food->x + FrameX;      //得到食物的横坐标food->y += FrameY;         //得到食物的竖坐标for (i = 0; i<snake->length; i++){/* 判断食物是否在蛇的身上，如果在蛇身上，则重新产生；否则，打印蛇身 */if (food->x == snake->x[i] && food->y == snake->y[i]){break;}}if (i == snake->length){gotoxy(hOut, food->x, food->y);printf("⊙");break;}}
}/******吃食物***************************************************************************/
void eat_food(HANDLE hOut, struct Snake *snake, struct Food *food)
{if (snake->x[snake->length - 1] == food->x && snake->y[snake->length - 1] == food->y){/* 如果蛇头位置与食物位置相同，吃食物 */snake->length++;      //吃一个食物，蛇身增长一节for (i = snake->length - 1; i >= 1; i--){/* 蛇后节坐标依次赋值给蛇前一节的坐标，依次得到蛇身及蛇头的坐标 */snake->x[i] = snake->x[i - 1];snake->y[i] = snake->y[i - 1];}snake->x[0] = a[0];      //得到蛇尾移动前的横坐标snake->y[0] = a[1];      //得到蛇尾移动前的竖坐标  get_food(hOut, snake, food);    //重新产生食物snake->count++;       //食物的个数增1if (snake->count % 5 == 0){/* 当蛇吃Up_level个食物时，速度加快Up_speed毫秒并且升一级 */snake->speed -= 50;}}
}/******穿墙**********************************************************************************/
void through_wall(HANDLE hOut, struct Snake *snake, char ch)
{if (ch == 72 && snake->y[snake->length - 1] == FrameY){snake->y[snake->length - 1] = FrameY + Frame_height - 1; //如果蛇在上框且向上移动，穿墙}if (ch == 80 && snake->y[snake->length - 1] == FrameY + Frame_height){snake->y[snake->length - 1] = FrameY + 1;    //如果蛇在下框且向下移动，穿墙}if (ch == 75 && snake->x[snake->length - 1] == FrameX){snake->x[snake->length - 1] = FrameX + 2 * Frame_width - 4; //如果蛇在左框且向左移动，穿墙}if (ch == 77 && snake->x[snake->length - 1] == FrameX + 2 * Frame_width - 2){snake->x[snake->length - 1] = FrameX + 2;    //如果蛇在右框且向右移动，穿墙}
}/******判断蛇是否死**************************************************************************/
int if_die(struct Snake *snake)
{/* 当蛇头碰到自身时，蛇死 ，返回值为0 */for (i = 0; i<snake->length - 1; i++){if (snake->x[snake->length - 1] == snake->x[i] && snake->y[snake->length - 1] == snake->y[i]){return 0;}}return 1;
}/******开始游戏*******************************************************************************/
void start_game()
{unsigned char ch=77;        //定义用于接收键盘输入的字符变量HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE); //定义显示器句柄变量struct Snake s,*snake=&s;      //定义蛇的结构体指针并指向蛇的结构体struct Food f,*food=&f;       //定义食物的结构体指针并指向食物的结构体make_frame();         //制作游戏窗口 init_snake(snake);        //初始化蛇get_food(hOut,snake,food);      //随机产生食物while(1){print_information(hOut,snake,food);   //打印菜单信息a[0]=snake->x[0];       //记住蛇尾的横坐标a[1]=snake->y[0];       //记住蛇尾的竖坐标j=0;if(kbhit()){/* 判断是否按下键盘，如果按下，ch接收键盘输入 */ch=getch();if(kbhit()){/* 如果长按键盘，则加速 */Sleep(20);j=1;}}switch(ch){case 72:{/* 向上移动 */move_snake(hOut,snake);   //移动蛇snake->y[snake->length-1]-=1; //蛇头的竖坐标向上移，即减1 break;}case 80:{/* 向下移动 */move_snake(hOut,snake);   //移动蛇snake->y[snake->length-1]+=1; //蛇头的竖坐标向下移，即加1break;}case 75:{/* 向左移动 */move_snake(hOut,snake);   //移动蛇snake->x[snake->length-1]-=2; //蛇头的横坐标向左移，即减2break;}    case 77:{/* 向右移动 */move_snake(hOut,snake);   //移动蛇snake->x[snake->length-1]+=2; //蛇头的横坐标向右移，即加2break;}}through_wall(hOut,snake,ch);    //穿墙   eat_food(hOut,snake,food);     //吃食物print_snake(hOut,snake);     //打印蛇if( if_die(snake)==0 || ch==27 || snake->speed==50 ){/* 游戏结束条件：1.蛇碰到自身 2.按Esc键 3.速度为50ms */gotoxy(hOut,FrameX+Frame_width-2,FrameY+Frame_height/2-1);printf("Game Over");Sleep(2000);break;}if(j==0){Sleep(snake->speed);      //延迟时间}else{Sleep(10);} }
}int main()
{system("color 0D");  //设置文本为粉红色start_game();   //开始游戏over_game();   //结束游戏system("pause");return 0;
}

代码是借鉴的某位大佬的源码，我用的vs2017，编译时有几个错误：

只需要把getch()改成_getch(),把kbhit()改成_kbhit()即可。

这是效果图：