贪吃蛇

那个，本贪吃蛇是在VS2017的环境下编译运行的，不懂版本的编译环境也许会有所不同，各位读者还是需要自己看情况调试的。

嗯，废话不多说了，上代码！

// 贪吃蛇3.cpp: 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include <stdio.h>
#include <graphics.h> //图形界面头文件
#include <time.h>
#include <conio.h>
#include <mmsystem.h>
#include<string>

#pragma comment(lib,"winmm.lib")
#define SIZE 20
using namespace std;
int survival = 1;
int wallx=900, wally=600;
enum ways { UP = 72, DOWN = 80, LEFT = 75, RIGHT = 77 };  //上下左右四个方向
class position
{
    public:
        int x,y;
};
position tempp;
class Snake
{
    public:
        vector body;
        ways direction;
        int getsize();
    private:
        int bodysize = SIZE;
};
Snake snake;
int Snake::getsize()
{
    return bodysize;
}
class Food
{
    public:
        position foodp;
        int life;
        int getsize();
    private:
        int foodsize = SIZE;
};
int Food::getsize()
{
    return foodsize;
}
Food food;
void GameInit()
{
    //打开一个窗口
    initgraph(wallx, wally);
    srand((unsigned int)time(NULL));
    setbkcolor(RGB(100, 100, 0));
    cleardevice(); //使用设置好的背景颜色刷新屏幕
    //蛇初始化
    snake.body.clear();
    tempp.x = 20;
    tempp.y = 20;
    snake.body.push_back(tempp);
    snake.direction = DOWN;
    food.life = 0; //初始化没有食物
}
void CreateFood()
{
    food.foodp.x = rand() % (wallx / food.getsize()-1)*food.getsize();
    food.foodp.y = rand() % (wally / food.getsize()-1)*food.getsize();
    food.life = 1;
}
void FoodPaint()
{
    setfillcolor(LIGHTRED);
    solidroundrect(food.foodp.x, food.foodp.y, food.foodp.x + food.getsize(),
        food.foodp.y + food.getsize(), food.getsize(), food.getsize());
}
void SnakePaint()
{
    static int cnt = 0;
    cnt++;
    if (cnt % 50 == 0)
        setbkcolor(RGB(rand() % 100 + 156, rand() % 100 + 156, rand() % 100 + 156));
    if (cnt > 500)cnt = 0;
    settextcolor(LIGHTRED);
    settextstyle(50, 0, L"宋体");
    int t = snake.body.size();
    string a;
    a = to_string(t);
    TCHAR wc[MAX_PATH];
    _stprintf_s(wc, MAX_PATH, _T("%S"), a.c_str());//%S宽字符 
    outtextxy(0, 0, wc);
    vector::iterator it;
    for (it = snake.body.begin(); it != snake.body.end(); it++)
    {
        setfillcolor(RGB(rand() % 100 + 56, rand() % 100 + 56, rand() % 100 + 56));
        if(rand()%2==0)
        bar(it->x, it->y, it->x + snake.getsize(), it->y + snake.getsize());
        else
            solidroundrect(it->x, it->y, it->x + snake.getsize(), it->y + snake.getsize(),
                snake.getsize(), snake.getsize());
    }
}
void SnakeMove()
{
    tempp = *snake.body.begin();
    snake.body.erase(snake.body.end() - 1);
    switch (snake.direction)
    {
    case UP:
        tempp.y -= snake.getsize();
        break;
    case DOWN:
        tempp.y += snake.getsize();
        break;
    case LEFT:
        tempp.x -= snake.getsize();
        break;
    case RIGHT:
        tempp.x += snake.getsize();
        break;
    }
    snake.body.insert(snake.body.begin(), tempp);
}
void EatFood()
{
    if (snake.body.begin()->x == food.foodp.x&&snake.body.begin()->y == food.foodp.y)
    {
        tempp = *(snake.body.end() - 1);
        snake.body.push_back(tempp);
        food.life = 0;
    }
}
void ChangeSnakeCh()
{
    switch (_getch())
    {
    case UP:  //UP
        if (snake.direction != DOWN)
            snake.direction = UP;
        break;
    case DOWN:  //DOWN
        if (snake.direction != UP)
            snake.direction = DOWN;
        break;
    case RIGHT:
        if (snake.direction != LEFT)
            snake.direction = RIGHT;
        break;
    case LEFT:
        if (snake.direction != RIGHT)
            snake.direction = LEFT;
        break;
    case VK_SPACE:
        system("pause");
        break;
    }
}
void GameBreak()
{
    void OverGame();
    //撞墙 
    if (snake.body.begin()->y y+snake.getsize()>wally 
        || snake.body.begin()->x x + snake.getsize()>wallx)
    {
        //退出
        OverGame();
    }
    //咬自己
    vector::iterator it;
    for (it = snake.body.begin()+1; it != snake.body.end(); it++)
    {
        if (snake.body.begin()->x == it->x&&snake.body.begin()->y == it->y)
        {
            //退出
            OverGame();
            break;
        }
    }
}
void OverGame()
{
    survival = 0;
    cleardevice();
    settextcolor(LIGHTRED);
    settextstyle(50, 0, L"宋体");
    int t = snake.body.size();
    string a;
    a = to_string(t);
    a = "Bureau score:" + a+"!";
    TCHAR wc[MAX_PATH];
    _stprintf_s(wc, MAX_PATH, _T("%S"), a.c_str());//%S宽字符 
    outtextxy(wallx / 3-50, wally / 3-60, wc);
    settextcolor(RED);
    settextstyle(50, 0, L"宋体");
    outtextxy(wallx / 3, wally / 3, L"game over");
    settextcolor(GREEN);
    outtextxy(wallx / 3, wally / 3+50, L"R restart");
    time_t t1, t2;
    t1 = t2 = time(NULL);
    while (t2 - t1 < 4)
    {
        t2 = time(NULL);
        if (_getch() == 'r')
        {
            survival = 1;
            snake.body.clear();
            tempp.x = 20;
            tempp.y = 20;
            snake.body.push_back(tempp);
            snake.direction = DOWN;
            food.life = 0; //初始化没有食物
            cleardevice(); //使用设置好的背景颜色刷新屏幕
            break;
        }
    }
}
int main()
{
    GameInit();  //初始化的函数.
    mciSendString(L"open .甩葱歌.mp3 alias scg", 0, 0, 0);
    mciSendString(L"play scg repeat", 0, 0, 0);
    //按键控制 不按键->移动循环 按键-->退出移动循环-->改变方向-->回到移动循环 
    while (survival)
    {
        while (!_kbhit())  //kbhit(检测键盘是否有消息)
        {
            if (food.life == 0)//没有食物
                CreateFood();    //生成一个食物坐标
            cleardevice();     //刷新
            FoodPaint();       //绘制食物
            SnakePaint();      //绘制蛇
            SnakeMove();       //蛇移动
            Sleep(100);        //蛇的移动速度
            GameBreak();       //判断游戏是否结束
            EatFood();         //吃食物
        }
        ChangeSnakeCh();
    }
    return 0;
}