c语言实现贪吃蛇游戏代码

我可以回答这个问题。以下是一个简单的C语言实现贪吃蛇游戏的代码：

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

#define WIDTH 20
#define HEIGHT 20

int snake[100][2];
int food[2];
int length = 3;
int score = 0;
int direction = 3; // 1-up, 2-down, 3-left, 4-right

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

void init() {
    snake[0][0] = 5;
    snake[0][1] = 5;
    snake[1][0] = 5;
    snake[1][1] = 6;
    snake[2][0] = 5;
    snake[2][1] = 7;
    food[0] = rand() % WIDTH;
    food[1] = rand() % HEIGHT;
}

void draw() {
    system("cls");
    for (int i = 0; i < WIDTH + 2; i++) {
        printf("#");
    }
    printf("\n");
    for (int i = 0; i < HEIGHT; i++) {
        printf("#");
        for (int j = 0; j < WIDTH; j++) {
            if (i == snake[0][0] && j == snake[0][1]) {
                printf("O");
            } else if (i == food[0] && j == food[1]) {
                printf("F");
            } else {
                int is_body = 0;
                for (int k = 1; k < length; k++) {
                    if (i == snake[k][0] && j == snake[k][1]) {
                        printf("o");
                        is_body = 1;
                        break;
                    }
                }
                if (!is_body) {
                    printf(" ");
                }
            }
        }
        printf("#\n");
    }
    for (int i = 0; i < WIDTH + 2; i++) {
        printf("#");
    }
    printf("\n");
    printf("Score: %d\n", score);
}

void update() {
    int tail[2];
    tail[0] = snake[length - 1][0];
    tail[1] = snake[length - 1][1];
    for (int i = length - 1; i > 0; i--) {
        snake[i][0] = snake[i - 1][0];
        snake[i][1] = snake[i - 1][1];
    }
    if (direction == 1) {
        snake[0][0]--;
    } else if (direction == 2) {
        snake[0][0]++;
    } else if (direction == 3) {
        snake[0][1]--;
    } else if (direction == 4) {
        snake[0][1]++;
    }
    if (snake[0][0] == food[0] && snake[0][1] == food[1]) {
        length++;
        score += 10;
        food[0] = rand() % WIDTH;
        food[1] = rand() % HEIGHT;
    }
    if (snake[0][0] < 0 || snake[0][0] >= HEIGHT || snake[0][1] < 0 || snake[0][1] >= WIDTH) {
        printf("Game over!\n");
        exit(0);
    }
    for (int i = 1; i < length; i++) {
        if (snake[0][0] == snake[i][0] && snake[0][1] == snake[i][1]) {
            printf("Game over!\n");
            exit(0);
        }
    }
}

int main() {
    init();
    while (1) {
        draw();
        update();
        Sleep(100);
        if (_kbhit()) {
            int c = _getch();
            if (c == 'w' && direction != 2) {
                direction = 1;
            } else if (c == 's' && direction != 1) {
                direction = 2;
            } else if (c == 'a' && direction != 4) {
                direction = 3;
            } else if (c == 'd' && direction != 3) {
                direction = 4;
            }
        }
    }
    return 0;
}