C语言项目实战-贪吃蛇

#include "Snake.h" //设置光标的坐标 void SetPos(short x, short y) { COORD pos = { x, y }; HANDLE hOutput = NULL; //获取标准输出的句柄(用来标识不同设备的数值) hOutput = GetStdHandle(STD_OUTPUT_HANDLE); //设置标准输出上光标的位置为pos SetConsoleCursorPosition(hOutput, pos); } void WelcomeToGame() { SetPos(40, 15); printf("欢迎来到贪吃蛇小游戏"); SetPos(40, 25);//让按任意键继续的出现的位置好看点 system("pause"); system("cls"); SetPos(25, 12); printf("用 ↑ . ↓ . ← . → 分别控制蛇的移动， F3为加速，F4为减速\n"); SetPos(25, 13); printf("加速将能得到更高的分数。\n"); SetPos(40, 25);//让按任意键继续的出现的位置好看点 system("pause"); system("cls"); } void CreateMap() { int i = 0; //上(0,0)-(56, 0) SetPos(0, 0); for (i = 0; i < 58; i += 2) { wprintf(L"%c", WALL); } //下(0,26)-(56, 26) SetPos(0, 26); for (i = 0; i < 58; i += 2) { wprintf(L"%c", WALL); } //左 //x是0，y从1开始增⻓ for (i = 1; i < 26; i++) { SetPos(0, i); wprintf(L"%c", WALL); } //x是56，y从1开始增⻓ for (i = 1; i < 26; i++) { SetPos(56, i); wprintf(L"%c", WALL); } } void InitSnake(pSnake ps) { pSnakeNode cur = NULL; int i = 0; //创建蛇身节点，并初始化坐标 //头插法 for (i = 0; i < 5; i++) { //创建蛇身的节点 cur = (pSnakeNode)malloc(sizeof(SnakeNode)); if (cur == NULL) { perror("InitSnake()::malloc()"); return; } //设置坐标 cur->next = NULL; cur->x = POS_X + i * 2; cur->y = POS_Y; //头插法 if (ps->_pSnake == NULL) { ps->_pSnake = cur; } else { cur->next = ps->_pSnake; ps->_pSnake = cur; } } //打印蛇的身体 cur = ps->_pSnake; while (cur) { SetPos(cur->x, cur->y); wprintf(L"%c", BODY); cur = cur->next; } //初始化贪吃蛇数据 ps->_SleepTime = 200; ps->_Socre = 0; ps->_Status = OK; ps->_Dir = RIGHT; ps->_foodWeight = 10; } void CreateFood(pSnake ps) { int x = 0; int y = 0; again: //产生的x坐标应该是2的倍数，这样才可能和蛇头坐标对齐。 do { x = rand() % 53 + 2; y = rand() % 25 + 1; } while (x % 2 != 0); pSnakeNode cur = ps->_pSnake;//获取指向蛇头的指针 //食物不能和蛇身冲突 while (cur) { if (cur->x == x && cur->y == y) { goto again; } cur = cur->next; } pSnakeNode pFood = (pSnakeNode)malloc(sizeof(SnakeNode)); //创建食物 if (pFood == NULL) { perror("CreateFood::malloc()"); return; } else { pFood->x = x; pFood->y = y; SetPos(pFood->x, pFood->y); wprintf(L"%c", FOOD); ps->_pFood = pFood; } } void PrintHelpInfo() { //打印提示信息 SetPos(64, 15); printf("不能穿墙，不能咬到自己\n"); SetPos(64, 16); printf("用↑.↓.←.→分别控制蛇的移动."); SetPos(64, 17); printf("F3 为加速，F4 为减速\n"); SetPos(64, 18); printf("ESC ：退出游戏.space：暂停游戏."); } void pause()//暂停 { while (1) { Sleep(300); if (KEY_PRESS(VK_SPACE)) { break; } } } //pSnakeNode psn 是下一个节点的地址 //pSnake ps 维护蛇的指针 int NextIsFood(pSnakeNode psn, pSnake ps) { return (psn->x == ps->_pFood->x) && (psn->y == ps->_pFood->y); } //pSnakeNode psn 是下一个节点的地址 //pSnake ps 维护蛇的指针 void EatFood(pSnakeNode psn, pSnake ps) { //头插法 psn->next = ps->_pSnake; ps->_pSnake = psn; pSnakeNode cur = ps->_pSnake; //打印蛇 while (cur) { SetPos(cur->x, cur->y); wprintf(L"%c", BODY); cur = cur->next; } ps->_Socre += ps->_foodWeight; free(ps->_pFood); CreateFood(ps); } //pSnakeNode psn 是下一个节点的地址 //pSnake ps 维护蛇的指针 void NoFood(pSnakeNode psn, pSnake ps) { //头插法 psn->next = ps->_pSnake; ps->_pSnake = psn; pSnakeNode cur = ps->_pSnake; //打印蛇 while (cur->next->next) { SetPos(cur->x, cur->y); wprintf(L"%c", BODY); cur = cur->next; } //最后一个位置打印空格，然后释放节点 SetPos(cur->next->x, cur->next->y); printf(" "); free(cur->next); cur->next = NULL; } //pSnake ps 维护蛇的指针 int KillByWall(pSnake ps) { if ((ps->_pSnake->x == 0)|| (ps->_pSnake->x == 56)|| (ps->_pSnake->y == 0)|| (ps->_pSnake->y == 26)) { ps->_Status = KILL_BY_WALL; return 1; } return 0; } //pSnake ps 维护蛇的指针 int KillBySelf(pSnake ps) { pSnakeNode cur = ps->_pSnake->next; while (cur) { if ((ps->_pSnake->x == cur->x)&& (ps->_pSnake->y == cur->y)) { ps->_Status = KILL_BY_SELF; return 1; } cur = cur->next; } return 0; } void SnakeMove(pSnake ps) { //创建下一个节点 pSnakeNode pNextNode = (pSnakeNode)malloc(sizeof(SnakeNode)); if (pNextNode == NULL) { perror("SnakeMove()::malloc()"); return; } //确定下一个节点的坐标，下一个节点的坐标根据，蛇头的坐标和方向确定 switch (ps->_Dir) { case UP: { pNextNode->x = ps->_pSnake->x; pNextNode->y = ps->_pSnake->y - 1; } break; case DOWN: { pNextNode->x = ps->_pSnake->x; pNextNode->y = ps->_pSnake->y + 1; } break; case LEFT: { pNextNode->x = ps->_pSnake->x - 2; pNextNode->y = ps->_pSnake->y; } break; case RIGHT: { pNextNode->x = ps->_pSnake->x + 2; pNextNode->y = ps->_pSnake->y; } break; } //如果下一个位置就是食物 if (NextIsFood(pNextNode, ps)) { EatFood(pNextNode, ps); } else//如果没有食物 { NoFood(pNextNode, ps); } KillByWall(ps); KillBySelf(ps); } void GameStart(pSnake ps) { //设置控制台窗口的大小，30行，100列 //mode 为DOS命令 system("mode con cols=100 lines=30"); //设置cmd窗口名称 system("title 贪吃蛇"); //获取标准输出的句柄(用来标识不同设备的数值) HANDLE hOutput = GetStdHandle(STD_OUTPUT_HANDLE); //隐藏光标操作 CONSOLE_CURSOR_INFO CursorInfo; GetConsoleCursorInfo(hOutput, &CursorInfo);//获取控制台光标信息 CursorInfo.bVisible = false; //隐藏控制台光标 SetConsoleCursorInfo(hOutput, &CursorInfo);//设置控制台光标状态 //打印欢迎界面 WelcomeToGame(); //打印地图 CreateMap(); //初始化蛇 InitSnake(ps); //创造第一个食物 CreateFood(ps); } void GameRun(pSnake ps) { //打印右侧帮助信息 PrintHelpInfo(); do { SetPos(64, 10); printf("得分：%d ", ps->_Socre); printf("每个食物得分：%d分", ps->_foodWeight); if (KEY_PRESS(VK_UP) && ps->_Dir != DOWN) { ps->_Dir = UP; } else if (KEY_PRESS(VK_DOWN) && ps->_Dir != UP) { ps->_Dir = DOWN; } else if (KEY_PRESS(VK_LEFT) && ps->_Dir != RIGHT) { ps->_Dir = LEFT; } else if (KEY_PRESS(VK_RIGHT) && ps->_Dir != LEFT) { ps->_Dir = RIGHT; } else if (KEY_PRESS(VK_SPACE)) { pause(); } else if (KEY_PRESS(VK_ESCAPE)) { ps->_Status = END_NOMAL; break; } else if (KEY_PRESS(VK_F3)) { if (ps->_SleepTime >= 50) { ps->_SleepTime -= 30; ps->_foodWeight += 2; } } else if (KEY_PRESS(VK_F4)) { if (ps->_SleepTime < 350) { ps->_SleepTime += 30; ps->_foodWeight -= 2; if (ps->_SleepTime == 350) { ps->_foodWeight = 1; } } } //蛇每次一定之间要休眠的时间，时间短，蛇移动速度就快 Sleep(ps->_SleepTime); SnakeMove(ps); } while (ps->_Status == OK); } void GameEnd(pSnake ps) { pSnakeNode cur = ps->_pSnake; SetPos(24, 12); switch (ps->_Status) { case END_NOMAL: printf("您主动退出游戏\n"); break; case KILL_BY_SELF: printf("您撞上自己了 ,游戏结束!\n"); break; case KILL_BY_WALL: