贪吃蛇代码(新手)DevXU的博客-

还有一些Bug

// 必要的头文件  #include <stdio.h> #include <stdlib.h> #include <conio.h> #include <time.h> #include <windows.h> #include <string.h> // 定义标记上下左右的明示常量  #define UP 1 #define DOWN 2 #define LEFT 3 #define RIGHT 4 #define ESC 5  #define FOOD 10 // 定义表示位置的结构体类型 typedef struct snake{ int x; int y; struct snake *next; }snake; // 定义全局变量  int score = 0; // 当前得分 int speed = 200; // 存储当前速度 int status; int now; snake *tail,*head; // 存储蛇头蛇尾  snake *food,*q;// q用于遍历链表   HANDLE hOUT; void gotoxy(int x,int y); // 设置光标位置  int choice(void); // 载入游戏界面 int color(int c); // 设置字体颜色  void printGame(void); // 打印游戏界面  void printSnake(void); // 打印蛇身 void printFood(void); // 打印食物 void printTips(void); // 打印提示 void snakeMove(void); // 主操作函数  int biteSelf(void); // 判断是否咬到了自己 int encounterWall(void); // 判断是否撞墙  void keyboardControl(void); // 获取击键  void speedUp(void); // 加速 void speedDown(void); // 减速 int endGame(void); // 结束函数;  char *s_gets(char *st,int n); // 读取字符 void frees(snake *); // 释放内存  int main(int argc, char *argv[]){ while(1) { if(choice() == 1) keyboardControl(); else { gotoxy(5,15); printf("按任意键返回"); getchar(); // 去除前一个前导换行  while(1) { if(getchar()) { system("cls"); break; } } } } frees(head); return 0; } void gotoxy(int x,int y) {     COORD c;     c.X=x;     c.Y=y; SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),c); } int choice(void) { int yourchoice; // 画出界面  gotoxy(35,5); color(11); printf("t贪吃蛇大作战n"); printf("nn"); color(13); printf("tt★★★★★★★★  Snake!"); printf("tt★★★★★★★★  Snake!"); gotoxy(25,15); color(12); printf("1.进入游戏t2.查看说明t3.退出游戏n"); color(11); printf("请选择:"); scanf("%d",&yourchoice); switch(yourchoice) { case 1: system("cls"); // 初始化  printGame(); printSnake(); printFood(); break; case 2: system("cls"); printTips(); break; case 3: system("cls"); gotoxy(30,10); color(11); printf("Bye!"); exit(0); default: system("cls"); printf("没有此序号,请输入1,2或3n"); Sleep(2000); system("cls"); } return yourchoice; } int color(int c) { SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), c); //更改文字颜色 return 0; } void printGame() { int i,j; gotoxy(5,5); printf("游戏载入中...请稍后"); Sleep(2000); system("cls"); // 打印上下界面 for(i = 0;i <= 50;i += 2) { gotoxy(i,0); printf("□"); gotoxy(i,25); printf("□"); } // 打印左右界面 for(i = 0;i <= 25;i += 1) { gotoxy(0,i); printf("□"); gotoxy(50,i); printf("□"); } // 打印中间网格 for(i = 1;i <= 24;i += 1) { for(j = 2;j <= 48;j += 2) { gotoxy(j,i); color(11); printf("■"); } } // 打印右侧的规则和计分栏 gotoxy(60,13); printf("当前分数:%d分,当前速度%d",score,speed); gotoxy(60,15); printf("用↑ ↓ ← →分别控制蛇的移动n"); gotoxy(60,18); printf("每次获取食物加10分  按下F1加速,F2减速,空格暂停n"); gotoxy(60,20); printf("不能撞墙和咬到自己!"); gotoxy(60,22); printf("速度不低于100,不高于300"); } void printSnake(void) { int i; // 设定蛇尾(16,13),头插入,初始向右   tail = (snake*)malloc(sizeof(snake));  tail->x = 16;  tail->y = 13;  tail->next = NULL; // 设定初始蛇长是4 for(i = 1;i <= 4;i++) {   head = (snake*)malloc(sizeof(snake));   head->next = tail;   head->x = 16+2*i;   head->y = 13;   tail = head; // 头成为尾 } // 输出蛇身 while(tail->next) { gotoxy(tail->x,tail->y); color(14); printf("★");   tail = tail->next; } } void printFood(void) { srand((unsigned)time(NULL)); // 利用时钟修改种子   food = (snake*)malloc(sizeof(snake));  food->x = 1; // 初始化x坐标  while(food->x%2 && food->x) {   food->x = rand()%46+2;// 2-48  }  food->y = rand()%23+1; // 1-24   q = head; // 不改变头遍历链表  while(q->next) { if(q->x == food->x && q->y == food->y) { free(food); printFood(); } else { gotoxy(food->x,food->y); color(12); printf("●"); break; } } } void printTips(void) { color(11); printf("***********Tips************n"); printf("1.采用合理的速度可以获得更高的分数哦!n"); printf("2.一定不要撞到自己或者两边的墙!n"); printf("3.游戏过程中按ESC退出游戏!n"); } void snakeMove(void) {  snake *snakenext;   snakenext = (snake*)malloc(sizeof(snake)); if(biteSelf()) { gotoxy(60,11); printf("咬到自己啦!"); free(snakenext); Sleep(1500); system("cls"); exit(0); } else if(encounterWall()) { gotoxy(60,11); printf("撞到墙啦!"); free(snakenext); Sleep(1500); system("cls"); exit(0); } else { // 前两个条件判断完成才开始移动  Sleep(350-speed); if(status == UP) {     snakenext->x = head->x;     snakenext->y = head->y-1;     snakenext->next = head;     head = snakenext;     q = head; if(snakenext->x == food->x && snakenext->y == food->y) { while(q) { gotoxy(q->x,q->y); color(14); printf("★");       q = q->next; }      score += FOOD; gotoxy(60,13); printf("当前分数:%d分,当前速度%d",score,speed); printFood(); } else { while(q->next->next) { gotoxy(q->x,q->y); color(14); printf("★");       q = q->next; } gotoxy(q->next->x,q->next->y); color(11); printf("■"); free(q->next);      q->next = NULL; } } else if(status == DOWN) {     snakenext->x = head->x;     snakenext->y = head->y+1;     snakenext->next = head;     head = snakenext;     q = head; if(snakenext->x == food->x && snakenext->y == food->y) { while(q) { gotoxy(q->x,q->y); color(14); printf("★");       q = q->next; }      score += FOOD; gotoxy(60,13); printf("当前分数:%d分,当前速度%d",score,speed); printFood(); } else { while(q->next->next) { gotoxy(q->x,q->y); color(14); printf("★");       q = q->next; } gotoxy(q->next->x,q->next->y); color(11); printf("■"); free(q->next);      q->next = NULL; } } else if(status == LEFT) {     snakenext->x = head->x-2;     snakenext->y = head->y;     snakenext->next = head;     head = snakenext;     q = head; if(snakenext->x == food->x && snakenext->y == food->y) { while(q) { gotoxy(q->x,q->y); color(14); printf("★");       q = q->next; }      score += FOOD; gotoxy(60,13); printf("当前分数:%d分,当前速度%d",score,speed); printFood(); } else { while(q->next->next) { gotoxy(q->x,q->y); color(14); printf("★");       q = q->next; } gotoxy(q->next->x,q->next->y); color(11); printf("■"); free(q->next);      q->next = NULL; } } else if(status == RIGHT) {     snakenext->x = head->x+2;     snakenext->y = head->y;     snakenext->next = head;     head = snakenext;     q = head; if(snakenext->x == food->x && snakenext->y == food->y) { while(q) { gotoxy(q->x,q->y); color(14); printf("★");       q = q->next; }      score += FOOD; gotoxy(60,13); printf("当前分数:%d分,当前速度%d",score,speed); printFood(); } else { while(q->next->next) { gotoxy(q->x,q->y); color(14); printf("★");       q = q->next; } gotoxy(q->next->x,q->next->y); color(11); printf("■"); free(q->next);      q->next = NULL; } } } } int biteSelf(void) { int x = 0; // 默认未咬到自己  q = head->next; // 遍历蛇身  while(q->next) { if(q->x == head->x && q->y == head->y) {    x = 1; }   q = q->next; } return x; } int encounterWall(void) { int x = 0; // 默认未撞到墙 if(head->x == 0 || head->x == 50 || head->y == 0 || head->y == 25)   x = 1; return x; } void keyboardControl(void) {  status=RIGHT; // 初始蛇向右移动 while(1) { if(GetAsyncKeyState(VK_UP) && status != DOWN) // GetAsyncKeyState函数用来判断函数调用时指定虚拟键的状态 {          status=UP; //如果蛇不是向下前进的时候，按上键，执行向上前进操作 } else if(GetAsyncKeyState(VK_DOWN) && status != UP) // 如果蛇不是向上前进的时候，按下键，执行向下前进操作 {          status=DOWN; } else if(GetAsyncKeyState(VK_LEFT)&& status != RIGHT) // 如果蛇不是向右前进的时候，按左键，执行向左前进 {          status=LEFT; } else if(GetAsyncKeyState(VK_RIGHT)&& status != LEFT) // 如果蛇不是向左前进的时候，按右键，执行向右前进 {          status=RIGHT; } if(GetAsyncKeyState(VK_SPACE))// 空格暂停  { while(1) { Sleep(300); if(GetAsyncKeyState(VK_SPACE)) // 再次按空格改变状态  { break; } } } else if(GetAsyncKeyState(VK_ESCAPE)) {          status = ESC; // 按esc键,直接到结束界面 if(endGame()) { Sleep(500); system("cls"); break; } } else if(GetAsyncKeyState(VK_F1)) // 按F1键，加速 { speedUp(); gotoxy(60,13); printf("当前分数:%d分,当前速度%d",score,speed); } else if(GetAsyncKeyState(VK_F2)) // 按F2键，减速 { speedDown(); gotoxy(60,13); printf("当前分数:%d分,当前速度%d",score,speed); } snakeMove(); } } void speedUp(void) { if(speed <= 280)   speed += 20; } void speedDown(void) { if(speed >= 120)   speed -= 20; } int endGame(void) { char x = 0; char judge[5]; getchar(); gotoxy(60,9); printf("确定退出吗?(Yes/No)"); gotoxy(60,11); s_gets(judge,5); if(strcmp(judge,"Yes") == 0) { Sleep(250); system("cls"); gotoxy(40,11); printf("tBye!");   x = 1; } else   x = 0; return x; } char *s_gets(char *st,int n) { char *ret_val; char *find; gotoxy(60,11);  ret_val = fgets(st,n,stdin); if(ret_val) {   find = strchr(st,'n'); if(find) *find = ''; else while(getchar() != 'n') continue; } return ret_val; } void frees(snake *s) {  snake *current = s; while(current) {   current = s;   s = current->next; free(current); } }