C语言贪吃蛇

以下是一个简单的C语言贪吃蛇游戏程序，使用了windows.h库和conio.h库：

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

#define MAP_WIDTH 40
#define MAP_HEIGHT 20

int map[MAP_HEIGHT][MAP_WIDTH] = { 0 };
int snake[100][2] = { 0 };
int length = 3;
int direction = 3;
int score = 0;

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

void initMap() {
    int i, j;
    for (i = 0; i < MAP_HEIGHT; i++) {
        for (j = 0; j < MAP_WIDTH; j++) {
            if (i == 0 || i == MAP_HEIGHT - 1 || j == 0 || j == MAP_WIDTH - 1) {
                map[i][j] = 1;
            }
        }
    }
}

void showMap() {
    int i, j;
    for (i = 0; i < MAP_HEIGHT; i++) {
        for (j = 0; j < MAP_WIDTH; j++) {
            gotoxy(j, i);
            if (map[i][j] == 0) {
                printf(" ");
            }
            else if (map[i][j] == 1) {
                printf("#");
            }
            else if (map[i][j] == 2) {
                printf("@");
            }
            else if (map[i][j] == 3) {
                printf("*");
            }
        }
    }
}

void initSnake() {
    int i;
    for (i = 0; i < length; i++) {
        snake[i][0] = MAP_WIDTH / 2 + i;
        snake[i][1] = MAP_HEIGHT / 2;
        map[snake[i][1]][snake[i][0]] = 3;
    }
}

void showSnake() {
    int i;
    for (i = 0; i < length; i++) {
        gotoxy(snake[i][0], snake[i][1]);
        printf("*");
    }
}

void createFood() {
    int x, y;
    do {
        x = rand() % (MAP_WIDTH - 2) + 1;
        y = rand() % (MAP_HEIGHT - 2) + 1;
    } while (map[y][x] != 0);
    map[y][x] = 2;
}

void updateSnake() {
    int i, tail_x, tail_y;
    tail_x = snake[length - 1][0];
    tail_y = snake[length - 1][1];
    for (i = length - 1; i > 0; i--) {
        snake[i][0] = snake[i - 1][0];
        snake[i][1] = snake[i - 1][1];
    }
    if (direction == 0) {
        snake[0][1]--;
    }
    else if (direction == 1) {
        snake[0][0]++;
    }
    else if (direction == 2) {
        snake[0][1]++;
    }
    else if (direction == 3) {
        snake[0][0]--;
    }
    if (map[snake[0][1]][snake[0][0]] == 1 || map[snake[0][1]][snake[0][0]] == 3) {
        gotoxy(MAP_WIDTH / 2 - 4, MAP_HEIGHT / 2);
        printf("Game Over!");
        getch();
        exit(0);
    }
    if (map[snake[0][1]][snake[0][0]] == 2) {
        length++;
        score += 10;
        createFood();
    }
    map[tail_y][tail_x] = 0;
    map[snake[0][1]][snake[0][0]] = 3;
}

void showScore() {
    gotoxy(MAP_WIDTH + 5, 5);
    printf("Score: %d", score);
}

int main() {
    initMap();
    initSnake();
    createFood();
    while (1) {
        showMap();
        showSnake();
        showScore();
        Sleep(100);
        updateSnake();
        if (_kbhit()) {
            int ch = _getch();
            if (ch == 'w' && direction != 2) {
                direction = 0;
            }
            else if (ch == 'd' && direction != 3) {
                direction = 1;
            }
            else if (ch == 's' && direction != 0) {
                direction = 2;
            }
            else if (ch == 'a' && direction != 1) {
                direction = 3;
            }
        }
    }
    return 0;
}

该程序使用二维数组表示地图，使用二维数组表示蛇，通过调用控制台API函数来实现显示，并使用conio.h库来实现键盘输入。程序运行后，使用wasd来控制蛇的移动，吃到食物后蛇的长度会增加，分数也会增加。当蛇撞到墙或自己时，游戏结束。