「分享」贪吃蛇C++代码 |21xrx.com

「分享」贪吃蛇C++代码

2023-06-24 14:12:53 深夜i -- --

C++ 贪吃蛇代码分享编程

贪吃蛇是一款经典的游戏，它的玩法简单却富有趣味性。在这篇文章中，我将分享一份使用C++编写的贪吃蛇代码。

在开始编程之前，需要先定义几个必要的变量。首先是游戏地图的大小，可以根据自己的需求进行调整。其次是蛇头、蛇身和食物的坐标，以及蛇当前的方向。

接下来是主要的代码部分。在游戏开始前，先绘制出游戏地图，包括边框，蛇头，蛇身和食物。接着进入游戏循环，不断地更新蛇的位置，移动方向也随之改变。如果蛇头碰到边框或碰到蛇身，游戏结束。如果蛇头碰到食物，则将食物重新放置在地图上，并增加蛇的长度。

实现这个游戏需要使用一些C++的基础知识，包括循环、条件判断和数组操作等。总之，通过这个简单的游戏例子，我们能够掌握一些基础的编程技能，也能够快速体验到编程的乐趣。

下面是完整的C++代码，大家可以根据自己的实际情况进行修改和优化。


#include<iostream>
#include<conio.h>
using namespace std;
const int WIDTH = 50;
const int HEIGHT = 30;
const int SNAKE_MAX_LENGTH = (WIDTH - 2) * (HEIGHT - 2);
class SnakeGame {
private:
  int map[HEIGHT][WIDTH];
  int snakeX[SNAKE_MAX_LENGTH], snakeY[SNAKE_MAX_LENGTH];
  int snakeLength;
  int foodX, foodY;
  int direction;
  int score;
public:
  SnakeGame() {
    snakeLength = 1;
    snakeX[0] = WIDTH / 2;
    snakeY[0] = HEIGHT / 2;
    foodX = 0;
    foodY = 0;
    score = 0;
    direction = 0;
    InitMap();
  }
  void InitMap() {
    for (int i = 0; i < HEIGHT; i++) {
      for (int j = 0; j < WIDTH; j++) {
        if (i == 0 || i == HEIGHT - 1 || j == 0 || j == WIDTH - 1) {
          map[i][j] = -1;
        }
        else {
          map[i][j] = 0;
        }
      }
    }
    DrawSnake();
    DrawFood();
  }
  void DrawSnake() {
    for (int i = 0; i < snakeLength; i++) {
      map[snakeY[i]][snakeX[i]] = 1;
    }
  }
  void DrawFood() {
    srand(time(NULL));
    while (true) {
      foodX = rand() % (WIDTH - 2) + 1;
      foodY = rand() % (HEIGHT - 2) + 1;
      if (map[foodY][foodX] == 0) {
        map[foodY][foodX] = 2;
        break;
      }
    }
  }
  void MoveSnake() {
    int newX = snakeX[snakeLength - 1];
    int newY = snakeY[snakeLength - 1];
    if (direction == 0) newX++;
    if (direction == 1) newY--;
    if (direction == 2) newX--;
    if (direction == 3) newY++;
    if (newX == foodX && newY == foodY) {
      score += 10;
      map[foodY][foodX] = 0;
      snakeLength++;
      snakeX[snakeLength - 1] = snakeX[snakeLength - 2];
      snakeY[snakeLength - 1] = snakeY[snakeLength - 2];
      DrawFood();
    }
    for (int i = 0; i < snakeLength - 1; i++) {
      snakeX[i] = snakeX[i + 1];
      snakeY[i] = snakeY[i + 1];
    }
    snakeX[snakeLength - 1] = newX;
    snakeY[snakeLength - 1] = newY;
  }
  void UpdateGame() {
    MoveSnake();
    if (snakeX[snakeLength - 1] == 0
      || snakeX[snakeLength - 1] == WIDTH - 1
      || snakeY[snakeLength - 1] == 0
      || snakeY[snakeLength - 1] == HEIGHT - 1) {
      cout << "Game Over!" << endl;
      _getch();
      exit(0);
    }
    for (int i = 0; i < snakeLength - 1; i++) {
      if (snakeX[i] == snakeX[snakeLength - 1] && snakeY[i] == snakeY[snakeLength - 1]) {
        cout << "Game Over!" << endl;
        _getch();
        exit(0);
      }
    }
  }
  void DisplayGame() {
    system("cls");
    for (int i = 0; i < HEIGHT; i++) {
      for (int j = 0; j < WIDTH; j++) {
        if (map[i][j] == -1)
          cout << "#";
        
        else if (map[i][j] == 0)
          cout << " ";
        
        else if (map[i][j] == 1) {
          cout << "*";
        }
        else if (map[i][j] == 2) {
          cout << "$";
        }
      }
      cout << endl;
    }
    cout << "Score:" << score << endl;
  }
  void InputOperation() {
    if (_kbhit()) {
      switch (_getch())
      case 'w':
        direction = 1;
        break;
      case 's':
        direction = 3;
        break;
      case 'a':
        direction = 2;
        break;
      case 'd':
        direction = 0;
        break;
      
    }
  }
  void Run() {
    while (true) {
      InputOperation();
      UpdateGame();
      DisplayGame();
      Sleep(200);
    }
  }
};
int main() {
  SnakeGame game;
  game.Run();
  return 0;
}

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