用c语言写出贪吃蛇小游戏

好的，以下是一个简单的贪吃蛇小游戏的 C 语言代码：

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

#define MAP_WIDTH 20
#define MAP_HEIGHT 20
#define SNAKE_MAX_LENGTH 100

int map[MAP_WIDTH][MAP_HEIGHT];
int snakeX[SNAKE_MAX_LENGTH], snakeY[SNAKE_MAX_LENGTH];
int snakeLength = 0;
int score = 0;
int foodX = 0, foodY = 0;
int direction = 1; // 1: up, 2: right, 3: down, 4: left

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

void printMap() {
    system("cls");
    for (int i = 0; i < MAP_WIDTH; i++) {
        for (int j = 0; j < MAP_HEIGHT; j++) {
            if (map[i][j] == 1) {
                printf("#");
            } else if (map[i][j] == 2) {
                printf("*");
            } else if (map[i][j] == 3) {
                printf("O");
            } else {
                printf(" ");
            }
        }
        printf("\n");
    }
    printf("Score: %d\n", score);
}

void generateFood() {
    srand((unsigned int)time(NULL));
    int x, y;
    do {
        x = rand() % (MAP_WIDTH - 2) + 1;
        y = rand() % (MAP_HEIGHT - 2) + 1;
    } while (map[x][y] != 0);
    foodX = x;
    foodY = y;
    map[foodX][foodY] = 2;
}

void initSnake() {
    int x = MAP_WIDTH / 2, y = MAP_HEIGHT / 2;
    snakeX[0] = x;
    snakeY[0] = y;
    snakeLength = 1;
    map[x][y] = 3;
}

void updateSnake() {
    int x = snakeX[0], y = snakeY[0];
    switch (direction) {
        case 1: y--; break;
        case 2: x++; break;
        case 3: y++; break;
        case 4: x--; break;
    }
    if (x == foodX && y == foodY) {
        snakeLength++;
        score += 10;
        generateFood();
    } else {
        int tailX = snakeX[snakeLength - 1], tailY = snakeY[snakeLength - 1];
        map[tailX][tailY] = 0;
        for (int i = snakeLength - 1; i > 0; i--) {
            snakeX[i] = snakeX[i - 1];
            snakeY[i] = snakeY[i - 1];
        }
        snakeX[0] = x;
        snakeY[0] = y;
    }
    if (map[x][y] == 1 || map[x][y] == 3) {
        printf("Game over!\n");
        exit(0);
    }
    map[x][y] = 3;
}

void handleInput() {
    if (_kbhit()) {
        int ch = _getch();
        if (ch == 'w' || ch == 'W') {
            if (direction != 3) {
                direction = 1;
            }
        } else if (ch == 'd' || ch == 'D') {
            if (direction != 4) {
                direction = 2;
            }
        } else if (ch == 's' || ch == 'S') {
            if (direction != 1) {
                direction = 3;
            }
        } else if (ch == 'a' || ch == 'A') {
            if (direction != 2) {
                direction = 4;
            }
        }
    }
}

int main() {
    initMap();
    generateFood();
    initSnake();
    while (1) {
        printMap();
        updateSnake();
        handleInput();
        Sleep(100);
    }
    return 0;
}

希望能帮到你！