编写一个c语言贪吃蛇游戏的代码

好的，我可以为您提供贪吃蛇游戏的C语言代码。以下是代码示例：

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

#define WIDTH 50 
#define HEIGHT 20 

int score = 0; 
int speed = 200; 

int food_x, food_y; 

int snake_size = 3; 
int snake_x[100] = { 25,25,25 }, snake_y[100] = { 10,9,8 }; 
int dir = 2; 

void gotoxy(int x, int y) { 
    COORD pos; 
    pos.X = x; 
    pos.Y = y; 
    SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), pos); 
} 

void draw_wall() { 
    for (int i = 0; i < WIDTH; i++) { 
        gotoxy(i, 0); printf("#"); 
        gotoxy(i, HEIGHT); printf("#"); 
    } 
    for (int i = 0; i < HEIGHT; i++) { 
        gotoxy(0, i); printf("#"); 
        gotoxy(WIDTH, i); printf("#"); 
    } 
} 

void update_score() { 
    gotoxy(WIDTH + 5, 5); printf("Score: %d", score); 
    gotoxy(WIDTH + 5, 6); printf("Speed: %d", speed); 
} 

void generate_food() { 
    int flag = 1; 
    while (flag) { 
        flag = 0; 
        food_x = rand() % (WIDTH - 2) + 1; 
        food_y = rand() % (HEIGHT - 2) + 1; 
        for (int i = 0; i < snake_size; i++) 
            if (snake_x[i] == food_x && snake_y[i] == food_y) flag = 1; 
    } 
    gotoxy(food_x, food_y); printf("$"); 
} 

void update_snake() { 
    gotoxy(snake_x[snake_size - 1], snake_y[snake_size - 1]); printf(" "); 
    for (int i = snake_size - 1; i >= 1; i--) { 
        snake_x[i] = snake_x[i - 1]; 
        snake_y[i] = snake_y[i - 1]; 
    } 
    if (dir == 0) snake_y[0]--; 
    if (dir == 1) snake_x[0]++; 
    if (dir == 2) snake_y[0]++; 
    if (dir == 3) snake_x[0]--; 
    gotoxy(snake_x[0], snake_y[0]); printf("#"); 
} 

void game_over() { 
    system("cls"); 
    printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\t\t\t\tGame Over!\n\n\t\t\t\tYour score is %d\n\n", score); 
    system("pause"); 
    exit(0); 
} 

int main() { 
    srand((unsigned int)time(NULL)); 
    draw_wall(); 
    generate_food(); 
    update_score(); 
    while (1) { 
        if (_kbhit()) { 
            char ch = _getch(); 
            if (ch == 'w' && dir != 2) dir = 0; 
            if (ch == 'd' && dir != 3) dir = 1; 
            if (ch == 's' && dir != 0) dir = 2; 
            if (ch == 'a' && dir != 1) dir = 3; 
        } 
        if (snake_x[0] == 0 || snake_x[0] == WIDTH || snake_y[0] == 0 || snake_y[0] == HEIGHT) game_over(); 
        for (int i = 1; i < snake_size; i++) 
            if (snake_x[i] == snake_x[0] && snake_y[i] == snake_y[0]) game_over(); 
        if (snake_x[0] == food_x && snake_y[0] == food_y) { 
            snake_size++; 
            score += 10; 
            speed -= 5; 
            generate_food(); 
            update_score(); 
        } 
        update_snake(); 
        Sleep(speed); 
    } 
    return 0; 
}

这个程序是一个控制台应用程序，使用了Windows API函数来实现控制光标移动、生成随机数等功能。玩家可以通过控制台窗口输入"w"、"a"、"s"、"d"来控制蛇前进的方向，吃到食物可以获得分数，随着分数的增加蛇的速度会越来越快。但是如果蛇碰到墙壁或者自己，游戏就会结束。