字符游戏 贪吃蛇（1）

老师给我们布置了这个作业，按照提示，经过一番努力后，终于写出了这个简易版的贪吃蛇，成品如下：



然而这之中还存在这很多问题，例如每次移动后要通过按空格才能显示出效果，贪吃蛇的运动不连贯，操作繁琐等问题，期待通过以后的学习能够解决。

以下是代码

#include <stdio.h>
#include <string.h>
#include <time.h>
#include <stdlib.h>

#define SNAKE_HEAD 'H'
#define SNAKE_BODY 'X'
#define BLANK_CELL ' '
#define WALL_CELL '*'
#define food $

void snake_move();
void output();
int gameover();
void creat_food();

char map[12][12] = {
"***********",
"*XXXXH    *",
"*         *",
"*         *",
"*         *",
"*         *",
"*         *",
"*         *",
"*         *",
"*         *",
"***********",
};

int snake_length = 5;
int snake_location_x[10] = {5, 4, 3, 2, 1};
int snake_location_y[10] = {1, 1, 1, 1, 1};
int food_x;
int food_y;

int main() {
creat_food();
char choice;
output();
while (1) {
scanf(" %c", &choice);
snake_move();
if (choice == 'w') {
snake_location_y[0] -= 1;
map[snake_location_y[0]][snake_location_x[0]] = 'H';
}
if (choice == 's') {
snake_location_y[0] += 1;
map[snake_location_y[0]][snake_location_x[0]] = 'H';
}
if (choice == 'a') {
snake_location_x[0] -= 1;
map[snake_location_y[0]][snake_location_x[0]] = 'H';
}
if (choice == 'd') {
snake_location_x[0] += 1;
map[snake_location_y[0]][snake_location_x[0]] = 'H';
}
if (snake_location_x[0] == food_x && snake_location_y[0] == food_y) {
creat_food();
snake_length++;
snake_location_x[snake_length - 1] = snake_location_x[snake_length - 2];
snake_location_y[snake_length - 1] = snake_location_y[snake_length - 2];
map[snake_location_y[snake_length - 1]][snake_location_x[snake_length - 1]] = 'X';
}
if (!gameover()) {
printf("GAMEOVER!\n");
return 0;
} else {
output();
}
}
return 0;
}

void snake_move() {
int i;
map[snake_location_y[snake_length - 1]][snake_location_x[snake_length - 1]] = ' ';
for (i = snake_length - 1; i
9809
> 0; i--) {
snake_location_x[i] = snake_location_x[i - 1];
snake_location_y[i] = snake_location_y[i - 1];
map[snake_location_y[i]][snake_location_x[i]] = 'X';
}
}

int gameover() {
if (snake_location_x[0] == 10 || snake_location_x[0] == 0) {
return 0;
}
if (snake_location_y[0] == 10 || snake_location_y[0] == 0) {
return 0;
}
for (int i = 1; i < snake_length; i++) {
if (snake_location_x[0] == snake_location_x[i] && snake_location_y[0] == snake_location_y[i]) {
return 0;
}
}
return 1;
}
void output() {
for (int i = 0; i <= 11; i++) {
for (int j = 0; j <= 11; j++) {
printf("%c", map[i][j]);
}
printf("\n");
}
}
void creat_food() {
srand((unsigned)(time(NULL)));
food_x = rand() % 9 + 1;
food_y = rand() % 9 + 1;
while (map[food_y][food_x] != ' ') {
food_x = rand() % 9 + 1;
food_y = rand() % 9 + 1;
}
map[food_y][food_x] = '$';
}