#include #include <conio.h> #include <windows.h> using namespace std;

struct Node { int x, y; } snake[1000];

int length = 5, direction = 3; // 初始长度和方向 Node food; int dx[4] = {-1, 1, 0, 0}, dy[4] = {0, 0, -1, 1}; // 上下左右

void locate(int x, int y) { COORD coord = {short(y), short(x)}; SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord); }

void printWall(int m, int n) { for (int i = 0; i <= m + 1; i++) { for (int j = 0; j <= n + 1; j++) { if (i == 0 || i == m + 1 || j == 0 || j == n + 1) cout << "#"; else cout << " "; } cout << endl; } }

void printSnake() { locate(snake[0].x, snake[0].y); cout << "@"; for (int i = 1; i < length; i++) { locate(snake[i].x, snake[i].y); cout << "*"; } }

bool isValid(int x, int y, int m, int n) { if (x <= 0 || x > m || y <= 0 || y > n) return false; for (int i = 1; i < length; i++) { if (snake[i].x == x && snake[i].y == y) return false; } return true; }

void generateFood(int m, int n) { do { food.x = rand() % m + 1; food.y = rand() % n + 1; } while (!isValid(food.x, food.y, m, n)); locate(food.x, food.y); cout << "$"; }

void moveSnake(int m, int n) { Node prev = snake[length - 1]; for (int i = length - 1; i > 0; i--) { snake[i] = snake[i - 1]; } snake[0].x += dx[direction]; snake[0].y += dy[direction];

if (snake[0].x == food.x && snake[0].y == food.y) { length++; snake[length - 1] = prev; generateFood(m, n); } else { locate(prev.x, prev.y); cout << " "; } printSnake(); }

int main() { int m = 20, n = 40; srand(time(0; for (int i = 0; i < length; i++) { snake[i].x = 1; snake[i].y = 5 - i; } system("cls"); printWall(m, n); generateFood(m, n); printSnake();

while (true) { if (_kbhit()) { char ch = _getch(); if (ch == 'w' && direction != 1) direction = 0; else if (ch == 's' && direction != 0) direction = 1; else if (ch == 'a' && direction != 3) direction = 2; else if (ch == 'd' && direction != 2) direction = 3; } moveSnake(m, n); Sleep(200); if (!isValid(snake[0].x, snake[0].y, m, n)) break; } cout << "Game Over! Length: " << length << endl; return 0; }