用c语言写贪吃蛇游戏

以下是一个简单的贪吃蛇游戏的C语言实现，包括基本的游戏逻辑和图形输出：

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

const int Width = 20;
const int Height = 20;
int Snake[100][2], Length = 1, FoodX, FoodY, Score = 0;
int Direction = 0; //0:up 1:right 2:down 3:left

void InitSnake() {
    Snake[0][0] = Width / 2;
    Snake[0][1] = Height / 2;
    FoodX = rand() % Width;
    FoodY = rand() % Height;
}

void PrintMap() {
    system("cls");
    for (int i = 0; i <= Width + 1; i++)
        printf("#");
    printf("\n");
    for (int i = 0; i < Height; i++) {
        printf("#");
        for (int j = 0; j < Width; j++)
            if (i == Snake[0][1] && j == Snake[0][0])
                printf("O");
            else if (i == FoodY && j == FoodX)
                printf("F");
            else {
                int k;
                for (k = 1; k < Length; k++)
                    if (i == Snake[k][1] && j == Snake[k][0]) {
                        printf("o");
                        break;
                    }
                if (k == Length)
                    printf(" ");
            }
        printf("#\n");
    }
    for (int i = 0; i <= Width + 1; i++)
        printf("#");
    printf("\n");
    printf("Score: %d\n", Score);
}

void Move() {
    switch (Direction) {
    case 0:
        for (int i = Length - 1; i > 0; i--) {
            Snake[i][0] = Snake[i - 1][0];
            Snake[i][1] = Snake[i - 1][1];
        }
        Snake[0][1]--;
        break;
    case 1:
        for (int i = Length - 1; i > 0; i--) {
            Snake[i][0] = Snake[i - 1][0];
            Snake[i][1] = Snake[i - 1][1];
        }
        Snake[0][0]++;
        break;
    case 2:
        for (int i = Length - 1; i > 0; i--) {
            Snake[i][0] = Snake[i - 1][0];
            Snake[i][1] = Snake[i - 1][1];
        }
        Snake[0][1]++;
        break;
    case 3:
        for (int i = Length - 1; i > 0; i--) {
            Snake[i][0] = Snake[i - 1][0];
            Snake[i][1] = Snake[i - 1][1];
        }
        Snake[0][0]--;
        break;
    }
}

int main() {
    srand(time(NULL));
    InitSnake();
    while (1) {
        PrintMap();
        if (kbhit()) {
            char c = getch();
            if (c == 'w' || c == 'W')
                Direction = 0;
            else if (c == 'd' || c == 'D')
                Direction = 1;
            else if (c == 's' || c == 'S')
                Direction = 2;
            else if (c == 'a' || c == 'A')
                Direction = 3;
        }
        Move();
        if (Snake[0][0] == FoodX && Snake[0][1] == FoodY) {
            Length++;
            Score += 10;
            FoodX = rand() % Width;
            FoodY = rand() % Height;
        }
        if (Snake[0][0] < 0 || Snake[0][0] >= Width || Snake[0][1] < 0 || Snake[0][1] >= Height) {
            printf("Game Over!\n");
            break;
        }
        for (int i = 1; i < Length; i++)
            if (Snake[0][0] == Snake[i][0] && Snake[0][1] == Snake[i][1]) {
                printf("Game Over!\n");
                return 0;
            }
        Sleep(200);
    }
    return 0;
}

这个实现使用了Windows.h库的Sleep函数来控制游戏速度，使用了conio.h库的kbhit和getch函数来获取键盘输入，以及使用了随机数生成函数 rand。游戏界面使用字符画来展示，O代表蛇头，o代表蛇身，F代表食物。