200行左右

好的，下面是一个比较完整的吃豆人游戏C语言代码，大概有200多行：

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <windows.h>
#include <conio.h>

#define MAP_WIDTH 24
#define MAP_HEIGHT 24
#define CELL_WIDTH 20
#define CELL_HEIGHT 20
#define UP 1
#define DOWN 2
#define LEFT 3
#define RIGHT 4

enum CELL_TYPE {
    CELL_EMPTY,
    CELL_DOT,
    CELL_PLAYER,
    CELL_WALL
};

//地图
int map[MAP_HEIGHT][MAP_WIDTH] = {0};
//吃豆人的位置和方向
int player_x, player_y, player_dir;
//分数
int score = 0;
//豆子数量
int dot_num = 0;
//游戏结束标志
int game_over = 0;

void init_map(); //初始化地图
void draw_map(); //绘制地图
void draw_score(); //绘制分数
void update(); //更新游戏
void move_player(int dir); //移动吃豆人
void check_dot(); //检查是否吃到豆子
void check_game_over(); //检查游戏是否结束

int main() {
    srand(time(NULL)); //设置随机数种子
    init_map(); //初始化地图

    while (!game_over) { //游戏未结束
        draw_map(); //绘制地图
        draw_score(); //绘制分数
        update(); //更新游戏
        check_game_over(); //检查游戏是否结束
        Sleep(100); //暂停100毫秒
    }

    printf("\n\nGame Over! Your score is %d.", score); //输出分数
    return 0;
}

void init_map() {
    //随机生成豆子和墙壁
    for (int i = 0; i < MAP_HEIGHT; i++) {
        for (int j = 0; j < MAP_WIDTH; j++) {
            if (i == 0 || i == MAP_HEIGHT - 1 || j == 0 || j == MAP_WIDTH - 1) {
                map[i][j] = CELL_WALL; //边界设置为墙壁
            } else {
                if (rand() % 10 == 0) {
                    map[i][j] = CELL_DOT; //设置豆子标记
                    dot_num++; //豆子数量加1
                } else if (rand() % 20 == 0) {
                    map[i][j] = CELL_WALL; //设置墙壁标记
                }
            }
        }
    }

    //随机生成吃豆人的位置和方向
    do {
        player_x = rand() % MAP_HEIGHT;
        player_y = rand() % MAP_WIDTH;
    } while (map[player_x][player_y] != CELL_EMPTY);

    player_dir = rand() % 4 + 1;
    map[player_x][player_y] = CELL_PLAYER; //设置吃豆人标记
}

void draw_map() {
    system("cls"); //清屏

    for (int i = 0; i < MAP_HEIGHT; i++) {
        for (int j = 0; j < MAP_WIDTH; j++) {
            switch (map[i][j]) {
            case CELL_EMPTY:
                printf(" ");
                break;
            case CELL_DOT:
                printf("o");
                break;
            case CELL_PLAYER:
                printf("C");
                break;
            case CELL_WALL:
                printf("#");
                break;
            }
            printf(" ");
        }
        printf("\n");
    }
}

void draw_score() {
    printf("Score: %d\n", score);
}

void update() {
    if (_kbhit()) { //检测是否有键盘输入
        int key = _getch(); //获取键盘输入

        switch (key) {
        case 'w':
            move_player(UP); //向上移动
            break;
        case 's':
            move_player(DOWN); //向下移动
            break;
        case 'a':
            move_player(LEFT); //向左移动
            break;
        case 'd':
            move_player(RIGHT); //向右移动
            break;
        }
    } else {
        move_player(player_dir); //沿着当前方向移动
    }
}

void move_player(int dir) {
    map[player_x][player_y] = CELL_EMPTY; //清除原位置的标记

    switch (dir) {
    case UP:
        if (map[player_x - 1][player_y] != CELL_WALL) {
            player_x--; //向上移动
        }
        break;
    case DOWN:
        if (map[player_x + 1][player_y] != CELL_WALL) {
            player_x++; //向下移动
        }
        break;
    case LEFT:
        if (map[player_x][player_y - 1] != CELL_WALL) {
            player_y--; //向左移动
        }
        break;
    case RIGHT:
        if (map[player_x][player_y + 1] != CELL_WALL) {
            player_y++; //向右移动
        }
        break;
    }

    map[player_x][player_y] = CELL_PLAYER; //设置新位置的标记
    player_dir = dir; //更新方向
    check_dot(); //检查是否吃到豆子
}

void check_dot() {
    if (map[player_x][player_y] == CELL_DOT) { //吃到豆子
        map[player_x][player_y] = CELL_EMPTY; //清除豆子标记
        score += 10; //分数加10
        dot_num--; //豆子数量减1

        if (dot_num == 0) { //所有豆子被吃完
            game_over = 1; //游戏结束
        }
    }
}

void check_game_over() {
    if (player_x == 0 || player_x == MAP_HEIGHT - 1 || player_y == 0 || player_y == MAP_WIDTH - 1) { //撞墙
        game_over = 1; //游戏结束
    }
}

这个版本的吃豆人游戏相对于之前的版本，增加了更多的功能和细节，例如墙壁的随机生成、游戏结束判断、吃到豆子的判断和处理等。同时，代码也更加模块化，易于阅读和维护。