C《贪吃蛇》简易字符版

#include<stdio.h>
#include<stdlib.h>
#include<Windows.h>
#define H 20
#define L 20
void map(int hard);
void maphard(void);
void play(void);
void food(void);
int live(void);
void direction(char button, struct snake*direction);
void flashmap(struct snake*showsnake, int fx, int fy);
char MAP[H][L];
char key;
int life = 0;
int h;
int roof[4];

struct snake
{
    int x;
    int y;
    struct snake *next;
}*head, *body, *tail, *direct, *test;

int main(void)
{
    char choice;
    int speed;
    printf("            《贪吃蛇》 作者：sp\n");
    printf("请选择您的贪吃蛇水平（输入数字，按回车确认）：\n");
    printf("1.我是菜鸟        2.过关无压力\n");
    printf("3.大神你懂吗      4.丧心病狂模式\n");
    while (scanf("%c", &choice) == 1)
    {
        switch (choice)
        {
        case ‘1‘:
            map(0); 
            play(800, 0); 
            break;
        case ‘2‘:
            map(0); 
            play(400, 0); 
            break;
        case ‘3‘:
            map(0); 
            play(100, 0);
            break;
        case ‘4‘:
            printf("丧心病狂模式介绍：\n");
            printf("该模式下场地上会出现一片屋顶（用“+”表示）\n贪吃蛇可以穿过屋顶，但是在屋顶下玩家无法看到蛇的行踪\n");
            printf("贪吃蛇的食物有几率出现在屋顶下，玩家需要通过其丧心病狂的直觉来吃到食物\n");
            system("pause");
            map(1); 
            play(300, 1); 
            break;
        default:printf("游戏结束！");
        }
    }
    system("pause");
    return 0;
}

void map(int hard)
{
    int i, j, x, y;
    memset(MAP, ‘ ‘, sizeof(MAP));
    system("cls");
    head = (struct snake*)malloc(sizeof(struct snake));
    srand(time(0));//随机种子
    x = rand() % (H - 2) + 1;//初始化蛇头
    y = rand() % (L - 2) + 1;
    MAP[x][y] = ‘*‘;
    head->x = x;
    head->y = y;
    head->next = NULL;
    direct = head;
    if (hard = 0)
    {

        for (i = 0; i < H; i++)//画地图
        {
            for (j = 0; j < L; j++)
            {
                if (i == 0 || i == H - 1 || j == 0 || j == L - 1)//造围墙
                    MAP[i][j] = ‘#‘;
                printf("%c", MAP[i][j]);
            }
            printf("\n");
        }
    }
    else
    {
        for (h = 0; h < 4; h++)
        {
            srand(time(0));
            roof[h] = rand() % (H - 2) + 1;
        }

        for (i = 0; i < H; i++)//画地图
        {
            for (j = 0; j < L; j++)
            {
                if (i == roof[0] || i == roof[1] || j == roof[2] || j == roof[3])//屋顶
                    MAP[i][j] = ‘+‘;
                if (i == 0 || i == H - 1 || j == 0 || j == L - 1)//造围墙
                    MAP[i][j] = ‘#‘;
                printf("%c", MAP[i][j]);
            }
            printf("\n");
        }
    }
}

void play(int speed, int hard)
{
    int fx, fy;
    int food = 1;
    while (1)
    {
        Sleep(speed);
        while (food)//生成食物
        {
            srand(time(0));
            fx = rand() % (H - 2) + 1;
            fy = rand() % (L - 2) + 1;
            food = 0;
        }
        if (_kbhit() != 0)//有键盘输入则变换key的值，否则保持原方向
            key = _getch();
        direction(key, direct);
        body = head;
        if ((direct->x != fx) || (direct->y != fy))
        {
            while (body->next != NULL)
            {
                body->x = (body->next)->x;
                body->y = (body->next)->y;
                body = body->next;
            }
        }
        else{
            tail = (struct snake*)malloc(sizeof(struct snake));//加长蛇身
            direct->next = tail;
            tail->next = NULL;
            tail->x = fx;
            tail->y = fy;
            direct = tail;
            food = 1;
        }
        flashmap(head, fx, fy, hard);
        life = live();
        if (life)
            break;

    }
}

int live(void)
{
    if (body->x == 0 || body->y == 0 || body->x == H - 1 || body->y == L - 1)
        return 1;
    else
        return 0;
}

void flashmap(struct snake*showsnake, int fx, int fy, int hard)//刷新屏幕
{
    system("cls");
    int i, j;
    memset(MAP, ‘ ‘, sizeof(MAP));
    while (showsnake != NULL)
    {
        MAP[showsnake->x][showsnake->y] = ‘*‘;
        showsnake = showsnake->next;
    }
    MAP[fx][fy] = ‘@‘;
    if (hard == 0)
    {

        for (i = 0; i < H; i++)//画地图
        {
            for (j = 0; j < L; j++)
            {
                if (i == 0 || i == H - 1 || j == 0 || j == L - 1)//造围墙
                    MAP[i][j] = ‘#‘;
                printf("%c", MAP[i][j]);
            }
            printf("\n");
        }
    }
    else
    {
        for (i = 0; i < H; i++)//画地图
        {
            for (j = 0; j < L; j++)
            {
                if (i == roof[0] || i == roof[1] || j == roof[2] || j == roof[3])//屋顶
                    MAP[i][j] = ‘+‘;
                if (i == 0 || i == H - 1 || j == 0 || j == L - 1)//造围墙
                    MAP[i][j] = ‘#‘;
                printf("%c", MAP[i][j]);
            }
            printf("\n");
        }
    }

}

void direction(char button, struct snake*direction)//改变方向
{
    switch (button)
    {
    case ‘a‘:direction->y--;
        break;
    case ‘d‘:direction->y++;
        break;
    case ‘w‘:direction->x--;
        break;
    case ‘s‘:direction->x++;
    default:break;
    }
}