字符贪吃蛇的设计思路

做贪吃蛇首现应设计让蛇动起来的代码

/*蛇越长跑得越快*/
/*蛇能自己找食物*/
#include
#include
#include
#define SNAKE_MAX_LENGTH 20
#define SNAKE_HEAD 'H'
#define SNAKE_BODY 'X'
#define BLANK_CELL ' '
#define SANKE_FOOD '$'
#define WALL_CELL '*'
void snakeMove(int dx, int dy);

char map[12][12] =
{ "************",
"*XXXXH     *",
"*          *",
"*          *",
"*          *",
"*          *",
"*          *",
"*          *",
"*          *",
"*          *",
"*          *",
"************",
};
int snakeX[SNAKE_MAX_LENGTH] = { 1,2,3,4,5 };
int snakeY[SNAKE_MAX_LENGTH] = { 1,1,1,1,1 };/*数组的下标表示方向，0123分别表示上下左右，*/
int snakeLength = 5;//蛇总长度
int main() {
    int x = 0, y = 0, i, r,g = 0;
    for (i = 0; i < 100; i++) {
        char a;
        x = y = 0;
        scanf_s("%c", &a);
        switch (a) {
        case 'w':
            y--;
            break;
        case 's':
            y++;
            break;
        case 'a':
            x--;
            break;
        case 'd':
            x++;
            break;
        default:
            x += 3;
            break;
        }
        if (x > 2)
            break;
        snakeMove(x, y);
        for (i = 0; i < 12; i++) {
            for (r = 0; r < 12; r++) {
                printf("%c", map[i][r]);
            }
            printf("\n");
        }
    }
    return 0;
}
void snakeMove(int dx, int dy) {//蛇移动
    int i, r, t;
    i = snakeLength;
    i--;
    for (r = 0; r < i; r++) {
        t = r + 1;
        snakeX[r] = snakeX[t];
        snakeY[r] = snakeY[t];
    }
    snakeX[i] += dx;
    snakeY[i] += dy;
    for (i = 0; i < snakeLength; i++) {
        r = snakeX[i];
        t = snakeY[i];
        map[t][r] = 'X';
    }
    i--;
    r = snakeX[i];
    t = snakeY[i];
    map[t][r] = 'H';
    return;
}

在进行其他细节设置

/*蛇越长跑得越快*/
/*蛇能自己找食物*/
#include 
#include 
#include 
#include 
//#include 
#include 
#include 
#include 
void food();
void show();
void move();
void turn();
void check();
void ini();
void calculate();
int movable[4] = { 0, 1, 1, 0 };  //数组的下标表示方向，0123分别表示上下左右，下同
int distance[4] = { 9999, 9999, 9999, 9999 };
int  dy[4] = { 0, 1, 0, -1 };
int  dx[4] = { -1, 0, 1, 0 };
int sum = 5;  //蛇总长度
int over = 0;
int speed;   
int foodx, foody;  //食物的坐标
char map[17][17];

struct snake {
    int x, y;  //身体坐标 
    int dir;  //方向（只有蛇头的方向是有用的） 
} A[100];

void ini() {  //初始化界面
    speed = 500;
    over = 0;
    sum = 5;
    movable[0] = 0; movable[1] = 1; movable[2] = 1; movable[3] = 0;
    distance[0] = 9999; distance[1] = 9999; distance[2] = 9999; distance[3] = 9999;
    int i, j;
    for (i = 0; i < 100; i++) {  //初始化蛇头和蛇身的数据
        A[i].dir = 0;
        A[i].x = 0;
        A[i].y = 0;
    }
    A[0].x = 1; A[0].y = 1;  //地图左上角设置一条长度为5的蛇
    A[1].x = 1; A[1].y = 2;
    A[2].x = 1; A[2].y = 3;
    A[3].x = 1; A[3].y = 4;
    A[4].x = 1; A[4].y = 5; A[4].dir = 1;
    srand(time(0));
    for (i = 0; i < 17; i++) {  //设置地图
        for (j = 0; j < 17; j++) {
            map[i][j] = '*';
        }
    }
    for (i = 1; i < 16; i++) {
        for (j = 1; j < 16; j++) {
            map[i][j] = ' ';
        }
    }
    //map[6][5] = '*'; map[6][6] = '*'; map[6][7] = '*';
    //map[7][5] = '*'; map[7][7] = '*';
    map[A[4].x][A[4].y] = 'H';  //设置蛇头
    for (i = 0; i < sum - 1; i++) {  //设置蛇身
        map[A[i].x][A[i].y] = 'X';
    }
    food();
    calculate();
}


void show() {  //显示界面 
    int i, j, x, y;
    for (i = 0; i < 17; i++) {  //显示界面
        for (j = 0; j < 17; j++) {
            printf("%c", map[i][j]);
        }
        printf("\n");
    }

void food() {  //生成食物
    int x, y;
    while (1) {
        x = (int)(15 * rand() / (RAND_MAX + 1.0));  //随机产生一组食物坐标
        y = (int)(15 * rand() / (RAND_MAX + 1.0));
        if (map[x][y] == ' ') {  //如果是空格则在该处生成食物
            map[x][y] = 'O';
            foodx = x;  //记录食物坐标 
            foody = y;
            break;
        }
    }
}


void move() {  //蛇移动
    int i, x, y;
    int t = sum;  //t记录当前蛇总长度 
    check();  //移动前检查按当前方向移动一步后的情况
    if (t == sum) {  //没有吃到苹果
        for (i = 0; i < sum - 1; i++) {
            if (i == 0) {  //蛇尾坐标处变成空格，把蛇尾坐标变成前一个蛇身的坐标 
                map[A[i].x][A[i].y] = ' ';
                A[i].x = A[i + 1].x;
                A[i].y = A[i + 1].y;
            }
            else {  //每个蛇身坐标都变为它前一个蛇身的坐标
                A[i].x = A[i + 1].x;
                A[i].y = A[i + 1].y;
            }
            map[A[i].x][A[i].y] = 'X';  //把地图上蛇身坐标处的字符设置成‘X’
        }
        A[sum - 1].x = A[sum - 1].x + dx[A[sum - 1].dir];  //蛇头按当前方向移动一格 
        A[sum - 1].y = A[sum - 1].y + dy[A[sum - 1].dir];
        map[A[sum - 1].x][A[sum - 1].y] = 'H';  //把地图上蛇头坐标处的字符设置成‘H’
    }
    else {  //吃到苹果（sum会加1）
        map[A[sum - 2].x][A[sum - 2].y] = 'X';  //把地图上原蛇头坐标处的字符设置成‘X’
        A[sum - 1].x = A[sum - 2].x + dx[A[sum - 2].dir];  //新蛇头的坐标是原蛇头沿当前方向移动一格后的坐标 
        A[sum - 1].y = A[sum - 2].y + dy[A[sum - 2].dir];
        A[sum - 1].dir = A[sum - 2].dir;  //新蛇头方向为原蛇头的方向
        map[A[sum - 1].x][A[sum - 1].y] = 'H';  //把地图上蛇头坐标处的字符设置成‘H’
        food();
    }
    for(i = 0; i < 4; i++) {  //记录下能走的方向
        x = A[sum - 1].x + dx[i];
        y = A[sum - 1].y + dy[i];
        if(map[x][y] == ' ' || map[x][y] == 'O') {
            movable[i] = 1;  //能走就把对应方向的值设置为1 
        } else {
            if(x != A[0].x || y != A[0].y) {
                movable[i] = 0;  //不能走就把对应方向的值设置为0 
            } else {
                movable[i] = 1;
            }
        }
    }
}

void check() {  //检查是否死亡或者吃到食物
    int x, y, i, j;
    x = A[sum - 1].x + dx[A[sum - 1].dir];  //记录按当前方向移动一格后蛇头的坐标 
    y = A[sum - 1].y + dy[A[sum - 1].dir];
    if (map[x][y] == '*' || map[x][y] == 'X') {  //如果地图上该坐标处字符为‘*’或‘X’就死亡 
        if (x != A[0].x || y != A[0].y) {  //蛇尾除外 
            map[8][4] = 'G'; map[8][5] = 'A'; map[8][6] = 'M'; map[8][7] = 'E';  //输出“GAME OVER” 
            map[8][9] = 'O'; map[8][10] = 'V'; map[8][11] = 'E'; map[8][12] = 'R';
            map[8][8] = ' ';
            system("cls");
            for (i = 0; i < 17; i++) {
                for (j = 0; j < 17; j++) {
                    printf("%c", map[i][j]);
                }
                printf("\n");
            }
            printf("Input 'r' to restart\nInput 'q' to quit\n");
            over = 1;
        }
    }
    else if (map[x][y] == 'O') {  //吃到苹果 
        sum++;  //蛇身总长加1 
        speed = ((600 - sum * 20)>100) ? (600 - sum * 20) : 100; //速度加快 
    }
}