贪吃蛇 C++

#include<bits/stdc++.h>
#include <conio.h>
#include <windows.h>
using namespace std;
void gotoxy(int x,int y) //将输出位置改到 y行x列 
{
    CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
    HANDLE hConsoleOut;
    hConsoleOut = GetStdHandle(STD_OUTPUT_HANDLE);
    GetConsoleScreenBufferInfo(hConsoleOut,&csbiInfo);
    csbiInfo.dwCursorPosition.X = x;
    csbiInfo.dwCursorPosition.Y = y;
    SetConsoleCursorPosition(hConsoleOut,csbiInfo.dwCursorPosition);
}

pair<int,int> operator + (pair<int,int> a,pair<int,int> b)
{
    return make_pair(a.first+b.first,a.second+b.second);
}

struct _
{
    vector<pair<int,int>> v; //蛇身坐标
    pair<int,int> p,food,cur;//方向，食物，当前方向坐标
    int len,dif = 100; //长度，刷新速度

    void init() //初始化
    {
        p = make_pair(1,0);
        v.clear();
        for(int i = 2; i >= 0; i--)
            v.push_back(make_pair(i,0));
        L1:int x = rand()%80, y = rand()%20;
        food = make_pair(x,y);
        if(find(v.begin(),v.end(),food)!=v.end()) goto L1;
    }

    void print() //将蛇身，食物输入到屏幕
    {
        gotoxy(v[0].first,v[0].second);
        putchar('@');
        for(int i = 1; i < (int)v.size(); i++){
            gotoxy(v[i].first,v[i].second);
            putchar('O');
        }
        gotoxy(food.first,food.second);
        putchar('#');
        getkey();
    }

    void getkey() // 输入方向 
    {
        long long t = clock();
        cur = p;
        while(clock()-t < dif){
            if(_kbhit()) pd(_getch());
        }
        Move();
        system("cls");
        print();
    }

    void Move() // 移动
    {
        pair<int,int> t = v[0];
        v[0] = v[0]+p;
        v[0].first = (v[0].first+80)%80;v[0].second = (v[0].second+20)%20;
        if(find(v.begin()+1,v.end(),v[0]) != v.end()){
            gotoxy(32,10);puts("Game Over");
            gotoxy(30,11);puts("1、按 ESC 退出");
            gotoxy(30,12);puts("2、按任意键复活");
            if(_getch() == 27) exit(0);
            else {
                init();
                print();
            }
        }
        if(v[0] == food) {
            v.resize(v.size()+5);
            L1:int x = rand()%80, y = rand()%20;
            food = make_pair(x,y);
            if(find(v.begin(),v.end(),food)!=v.end()) goto L1;
        }
        for(int i = 1; i < (int)v.size(); i++){
            pair<int,int> tmp = v[i];
            v[i] = t;
            t = tmp;
        }
    }

    bool pd(int t) // 判断方向是否与当前方向相反
    {
        pair<int,int> x;
        if(t == 77) x = make_pair(-1,0);
        if(t == 75) x = make_pair(1,0);
        if(t == 72) x = make_pair(0,1);
        if(t == 80) x = make_pair(0,-1);
        if(cur != x){
            if(t == 77) p = make_pair(1,0);
            if(t == 75) p = make_pair(-1,0);
            if(t == 72) p = make_pair(0,-1);
            if(t == 80) p =make_pair(0,1);
            return true;
        }
        return false;
    }

}tcs;

int main()
{
    system("mode con: cols=80 lines=20");
    system("title 贪吃蛇");
    gotoxy(30,10);puts("按任意键开始...");_getch();
    tcs.init();
    tcs.print();
    return 0;
}