#include<bits/stdc++.h>
#include<windows.h>
#include<conio.h>
using namespace std;
const int n=10;
double t=20000;
struct node{
    int x,y;
}head={n/2,n/2},apple;
list<node>body;
int mab[n+5][n+5];//0空1身体2头3苹果
char dir='d';
void set_color(int c){
    SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),c);
}
void gotoxy(int x,int y){
    COORD pos;
    pos.X=x;
    pos.Y=y;
    HANDLE handle=GetStdHandle(STD_OUTPUT_HANDLE);
    SetConsoleCursorPosition(handle,pos);
}
void out(){
    gotoxy(0,0);
    for(int i=0;i<=n+1;i++){
        for(int j=0;j<=n+1;j++){
            if(i==0||j==0||i==n+1||j==n+1){
                set_color(6);
                cout<<"■";
            }
            else if(mab[i][j]==1){
                set_color(10);
                cout<<"□";
            }
            else if(mab[i][j]==2){
                set_color(10);
                cout<<"■";
            }
            else if(mab[i][j]==3){
                set_color(12);
                cout<<"●";
            } 
            else{
                cout<<" ";
            }
            cout<<" ";
        }
        cout<<"\n";
    }
    cout<<"目前得分："<<body.size()+1;
}
int main(){
    system("title 贪吃蛇---游戏说明");
    CONSOLE_CURSOR_INFO curInfo;
    curInfo.dwSize=1;
    curInfo.bVisible=FALSE;
    HANDLE handle=GetStdHandle(STD_OUTPUT_HANDLE);
    SetConsoleCursorInfo(handle,&curInfo);
    srand(time(0));
    apple.x=rand()%(n-2)+2;
    apple.y=rand()%(n-2)+2;
    mab[apple.x][apple.y]=3;
    cout<<"游戏说明：\n";
    cout<<"①、按“w,a,s,d”或“↑ ↓ ← →”移动蛇身体\n";
    cout<<"②、蛇头碰到●蛇的长度加大\n";
    cout<<"③、如果你不按键盘，蛇将会以上一按键的移动方向移动（默认是往右走）\n";
    cout<<"④、碰到边缘会结束游戏\n";
    cout<<"⑤、碰到自己会结束游戏\n";
    cout<<"⑥、按空格键暂停游戏，按任意键继续\n";
    cout<<"⑦、没有 7 了\n";
    cout<<"请按任意键开始游戏···";
    getch();
    system("cls");
    system("title 贪吃蛇"); 
    while(1){
        memset(mab,0,sizeof(mab));
        mab[apple.x][apple.y]=3;
        for(int i=0;i<(int)body.size();i++){
            mab[body.front().x][body.front().y]=1;
            body.push_back(body.front());
            body.pop_front();
        }
        mab[head.x][head.y]=2;
        out();
        for(int i=1;i<=t;i++){
            if(_kbhit()!=0){
                char x=getch();
                if(x=='w'||x=='W'||x==72||x=='a'||x=='A'||x==75||x=='s'||x=='S'||x==80||x=='d'||x=='D'||x==77||x==' '){
                    dir=x;
                    break;
                }
            }
        }
        body.push_front(head);
        switch(dir){
            case 'w':
            case 'W':
            case 72:
                head.x--;
                break;
            case 'a':
            case 'A':
            case 75:
                head.y--;
                break;
            case 's':
            case 'S':
            case 80:
                head.x++;
                break;
            case 'd':
            case 'D':
            case 77:
                head.y++;
                break;
            case ' ':
                getch();
                break;
        }
        if(mab[head.x][head.y]==3){
            srand(time(0));
            while((apple.x==head.x&&apple.y==head.y)||mab[apple.x][apple.y]!=0){
                apple.x=rand()%(n-2)+2;
                apple.y=rand()%(n-2)+2;
            }
            body.push_back(body.back());
          //    t*=0.9;
        }
        body.pop_back();
        if(head.x==0||head.y==0||head.x==n+1||head.y==n+1){
            MessageBox(NULL,TEXT("碰到了墙壁"),TEXT("You Lose"),MB_OK);
            break;
        }
        if(mab[head.x][head.y]==1){
            MessageBox(NULL,TEXT("你咬到了自己"),TEXT("You Lose"),MB_OK);
            break;
        }
    }
    set_color(15);
    system("cls");
    freopen("coin.txt","r",stdin);
    int x;
    cin>>x;
    cout<<"历史最高分："<<x;
    if(body.size()+1>x){
        cout<<"，恭喜你，突破了最高分！";
        freopen("coin.txt","w",stdout);
        cout<<body.size()+1;
    }
    return 0;
}