C语言之实现贪吃蛇小游戏篇

text.c

#define _CRT_SECURE_NO_WARNINGS 1
#include "snake.h"
void test()
{int ch = 0;do{Snake snake = { 0 };//创建了贪吃蛇//1. 游戏开始 - 初始化游戏GameStart(&snake);//2. 游戏运行 - 游戏的正常运行过程GameRun(&snake);//3. 游戏结束 - 游戏善后（释放资源）GameEnd(&snake);SetPos(20, 18);printf("再来一局吗?(Y/N):");ch = getchar();getchar();// 清理掉\n} while (ch == 'Y' || ch == 'y');SetPos(0, 27);
}
int main()
{//设置程序适应本地环境setlocale(LC_ALL, "");srand((unsigned int)time(NULL));test();return 0;
}

snake.h

#pragma once
#include <locale.h>
#include <stdlib.h>
#include <windows.h>
#include <stdbool.h>
#include <stdio.h>
#include <time.h>#define WALL L'□'
#define BODY L'●'
#define FOOD L'★'#define POS_X 24
#define POS_Y 5#define KEY_PRESS(VK)  ( (GetAsyncKeyState(VK) & 0x1) ? 1 : 0 )enum DIRECTION
{UP = 1,DOWN,LEFT,RIGHT
};enum GAME_STATUS
{OK,//正常运行END_NORMAL,//按ESC退出KILL_BY_WALL,KILL_BY_SELF
};//贪吃蛇结点的描述
typedef struct SnakeNode
{//坐标int x;int y;struct SnakeNode* next;
}SnakeNode, * pSnakeNode;//贪吃蛇的结构
typedef struct Snake
{pSnakeNode _pSnake;//指向贪吃蛇头结点的指针pSnakeNode _pFood;//指向食物结点的指针int _Score;//贪吃蛇累计的总分int _FoodWeight;//一个食物的分数int _SleepTime;//每走一步休息的时间，时间越短，速度越快，时间越长，速度越慢enum DIRECTION _Dir;//描述蛇的方向enum GAME_STATUS _Status;//游戏的状态：正常、退出、撞墙、吃到自己
}Snake, * pSnake;//游戏开始 - 完成游戏的初始化动作
void GameStart(pSnake ps);//定位坐标
void SetPos(short x, short y);//游戏开始的欢迎界面
void WelComeToGame();//打印地图
void CreateMap();//初始化贪吃蛇
void InitSnake(pSnake ps);//创建食物
void CreateFood(pSnake ps);//游戏的正常运行
void GameRun(pSnake ps);//打印帮助信息
void PrintHelpInfo();//游戏暂定和恢复
void Pause();//蛇的移动
void SnakeMove(pSnake ps);//判断蛇头到达的坐标处是否是食物
int NextIsFood(pSnake ps, pSnakeNode pnext);//吃掉食物
void EatFood(pSnake ps, pSnakeNode pnext);//不吃食物
void NoFood(pSnake ps, pSnakeNode pnext);//蛇是否撞墙
void KillByWall(pSnake ps);//蛇是否自杀
void KillBySelf(pSnake ps);//游戏结束后的善后处理
void GameEnd(pSnake ps);

snake.c

#define _CRT_SECURE_NO_WARNINGS 1#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posSetConsoleCursorPosition(hOutput, pos);
}//打印欢迎界面
void WelComeToGame()
{//定位光标SetPos(40, 14);printf("欢迎来到贪吃蛇小游戏");SetPos(40, 25);system("pause");//pause是暂停system("cls");SetPos(20, 14);printf("使用 ↑ . ↓ . ← . → . 分别控制蛇的移动, F3是加速，F4是减速");SetPos(40, 25);system("pause");system("cls");
}//创建墙体
void CreateMap()
{//上SetPos(0, 0);int i = 0;for (i = 0; i <= 56; i += 2){wprintf(L"%lc", WALL);}//下SetPos(0, 26);for (i = 0; i <= 56; i += 2){wprintf(L"%lc", WALL);}//左for (i = 1; i <= 25; i++){SetPos(0, i);wprintf(L"%lc", WALL);}//右for (i = 1; i <= 25; i++){SetPos(56, i);wprintf(L"%lc", WALL);}
}//初始化蛇
void InitSnake(pSnake ps)
{pSnakeNode cur = NULL;int i = 0;for (i = 0; i < 5; i++){cur = (pSnakeNode)malloc(sizeof(SnakeNode));if (cur == NULL){perror("InitSnake()::malloc()");return;}cur->x = POS_X + 2 * i;cur->y = POS_Y;cur->next = NULL;//头插法if (ps->_pSnake == NULL){ps->_pSnake = cur;}else{cur->next = ps->_pSnake;ps->_pSnake = cur;}}//打印蛇身cur = ps->_pSnake;while (cur){SetPos(cur->x, cur->y);wprintf(L"%lc", BODY);cur = cur->next;}ps->_Status = OK;ps->_Score = 0;ps->_pFood = NULL;ps->_SleepTime = 200;ps->_FoodWeight = 10;ps->_Dir = RIGHT;
}//创建食物
void CreateFood(pSnake ps)
{int x = 0;int y = 0;
again:do{x = rand() % 53 + 2;y = rand() % 25 + 1;} while (x % 2 != 0);//x坐标必须是2的倍数//坐标不能和蛇的身体冲突pSnakeNode cur = ps->_pSnake;while (cur){//比较坐标if (cur->x == x && cur->y == y){goto again;}cur = cur->next;}pSnakeNode pFood = (pSnakeNode)malloc(sizeof(SnakeNode));if (pFood == NULL){perror("CreateFood()::malloc()");return;}pFood->x = x;pFood->y = y;ps->_pFood = pFood;//打印食物SetPos(x, y);wprintf(L"%lc", FOOD);
}//游戏开始
void GameStart(pSnake ps)
{//控制台窗口的设置system("mode con cols=100 lines=30");system("title 贪吃蛇");//光标影藏掉HANDLE hOutput = GetStdHandle(STD_OUTPUT_HANDLE);//影藏光标操作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();//创建地图CreateMap();//初始化贪食蛇InitSnake(ps);//创建食物CreateFood(ps);
}//打印帮助信息
void PrintHelpInfo()
{SetPos(64, 15);printf("1.不能撞墙，不能咬到自己");SetPos(64, 16);printf("2.使用 ↑.↓.←.→ 分别控制蛇的移动");SetPos(64, 17);printf("3.F3加速，F4减速");SetPos(64, 18);printf("4.ESC-退出, 空格-暂停游戏");SetPos(64, 20);printf("@TSQ");
}//休眠
void Pause()
{while (1){Sleep(100);if (KEY_PRESS(VK_SPACE)){break;}}
}//下个节点
int NextIsFood(pSnake ps, pSnakeNode pnext)
{if (ps->_pFood->x == pnext->x && ps->_pFood->y == pnext->y){return 1;}else{return 0;}
}//吃掉食物
void EatFood(pSnake ps, pSnakeNode pnext)
{//头插pnext->next = ps->_pSnake;ps->_pSnake = pnext;//打印蛇pSnakeNode cur = ps->_pSnake;while (cur){SetPos(cur->x, cur->y);wprintf(L"%lc", BODY);cur = cur->next;}free(ps->_pFood);ps->_Score += ps->_FoodWeight;CreateFood(ps);//新创建食物
}//不吃食物
void NoFood(pSnake ps, pSnakeNode pnext)
{//头插pnext->next = ps->_pSnake;ps->_pSnake = pnext;//打印蛇身pSnakeNode cur = ps->_pSnake;while (cur->next->next){SetPos(cur->x, cur->y);wprintf(L"%lc", BODY);cur = cur->next;}SetPos(cur->next->x, cur->next->y);printf("  ");free(cur->next);cur->next = NULL;
}//蛇是否撞墙
void 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;
}//蛇是否自杀
void 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;}cur = cur->next;}
}//🐍蛇移动
void SnakeMove(pSnake ps)
{pSnakeNode pNext = (pSnakeNode)malloc(sizeof(SnakeNode));if (pNext == NULL){perror("SnakeMove()::malloc()");return;}pNext->next = NULL;switch (ps->_Dir){case UP:pNext->x = ps->_pSnake->x;pNext->y = ps->_pSnake->y - 1;break;case DOWN:pNext->x = ps->_pSnake->x;pNext->y = ps->_pSnake->y + 1;break;case LEFT:pNext->x = ps->_pSnake->x - 2;pNext->y = ps->_pSnake->y;break;case RIGHT:pNext->x = ps->_pSnake->x + 2;pNext->y = ps->_pSnake->y;break;}//判断蛇头到达的坐标处是否是食物if (NextIsFood(ps, pNext)){//吃掉食物EatFood(ps, pNext);}else{//不吃食物NoFood(ps, pNext);}//蛇是否撞墙KillByWall(ps);//蛇是否自杀KillBySelf(ps);
}//游戏运行
void GameRun(pSnake ps)
{PrintHelpInfo();do{SetPos(64, 10);printf("得分:%05d", ps->_Score);SetPos(64, 11);printf("每个食物的分数:%2d", 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_ESCAPE)){ps->_Status = END_NORMAL;break;}else if (KEY_PRESS(VK_SPACE)){Pause();}else if (KEY_PRESS(VK_F3))//加速{if (ps->_SleepTime >= 80){ps->_SleepTime -= 30;ps->_FoodWeight += 2;}}else if (KEY_PRESS(VK_F4))//减速{if (ps->_SleepTime < 320){ps->_SleepTime += 30;ps->_FoodWeight -= 2;}}Sleep(ps->_SleepTime);SnakeMove(ps);} while (ps->_Status == OK);
}//游戏结束
void GameEnd(pSnake ps)
{SetPos(20, 12);switch (ps->_Status){case END_NORMAL:printf("您主动退出游戏\n");break;case KILL_BY_SELF:printf("自杀了,游戏结束\n");break;case KILL_BY_WALL:printf("撞墙了，游戏结束\n");break;}//释放蛇身的结点pSnakeNode cur = ps->_pSnake;while (cur){pSnakeNode del = cur;cur = cur->next;free(del);}ps->_pSnake = NULL;}