写个贪吃蛇的C#代码

好的，以下是一个简单的贪吃蛇的C语言代码示例：

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

#define WIDTH 50   // 地图宽度
#define HEIGHT 20  // 地图高度

int snake[100][2];  // 存储蛇身的坐标
int length = 3;     // 蛇的初始长度
int direction;      // 蛇的移动方向
int food_x, food_y; // 食物的坐标

// 初始化游戏
void init_game() {
    // 初始化蛇的位置
    int x = WIDTH / 2, y = HEIGHT / 2;
    snake[0][0] = x;
    snake[0][1] = y;
    for (int i = 1; i < length; i++) {
        snake[i][0] = x - i;
        snake[i][1] = y;
    }
    // 随机放置食物
    srand(time(NULL));
    food_x = rand() % WIDTH;
    food_y = rand() % HEIGHT;
}

// 游戏主循环
void game_loop() {
    while (1) {
        // 画出地图和蛇
        system("cls");
        for (int y = 0; y < HEIGHT; y++) {
            for (int x = 0; x < WIDTH; x++) {
                int is_snake = 0;
                for (int i = 0; i < length; i++) {
                    if (snake[i][0] == x && snake[i][1] == y) {
                        is_snake = 1;
                        break;
                    }
                }
                if (is_snake) {
                    printf("*");
                } else if (x == food_x && y == food_y) {
                    printf("#");
                } else {
                    printf(" ");
                }
            }
            printf("\n");
        }
        // 处理按键输入
        if (_kbhit()) {
            char ch = _getch();
            if (ch == 'w') {
                direction = 0;
            } else if (ch == 'd') {
                direction = 1;
            } else if (ch == 's') {
                direction = 2;
            } else if (ch == 'a') {
                direction = 3;
            }
        }
        // 移动蛇
        int head_x = snake[0][0], head_y = snake[0][1];
        if (direction == 0) {
            head_y--;
        } else if (direction == 1) {
            head_x++;
        } else if (direction == 2) {
            head_y++;
        } else if (direction == 3) {
            head_x--;
        }
        // 判断游戏是否结束
        if (head_x < 0 || head_x >= WIDTH || head_y < 0 || head_y >= HEIGHT) {
            printf("Game Over!\n");
            break;
        }
        for (int i = 1; i < length; i++) {
            if (snake[i][0] == head_x && snake[i][1] == head_y) {
                printf("Game Over!\n");
                goto end;
            }
        }
        if (head_x == food_x && head_y == food_y) {
            length++;
            food_x = rand() % WIDTH;