库存贪吃蛇c++程序

#include<iostream>
#include<windows.h>
#include<time.h>
#include<conio.h>
using namespace std;
// 刷新当前屏幕
inline void Refresh(char q[][22], int grade, int gamespeed){
    system("cls");     //  清屏
 int i,j;
 cout << endl;
 for(i=0;i<22;i++){
     cout << "\t";
  for(j=0;j<22;j++)
   cout<<q[i][j]<<' ';    //  输出贪吃蛇棋盘
        if(i==0) cout << "\t等级为：" << grade;
        if(i==4) cout << "\t自动前进时间";
        if(i==6) cout << "\t间隔为：" << gamespeed << "ms";
  cout<<endl;
 }
}

int main(){
    char tcsQipan[22][22];     //  贪吃蛇棋盘是一个二维数组(如22*22，包括墙壁)
    int i,j;
    for(i=1;i<=20;i++)
        for(j=1;j<=20;j++)
            tcsQipan[i][j]=' ';     //     初始化贪吃蛇棋盘中间空白部分
    for(i=0;i<=21;i++)
        tcsQipan[0][i] = tcsQipan[21][i] = '-';      //初始化贪吃蛇棋盘上下墙壁
    for(i=1;i<=20;i++)
        tcsQipan[i][0] = tcsQipan[i][21] = '|';      //初始化贪吃蛇棋盘左右墙壁

    int tcsZuobiao[2][100];     //蛇的坐标数组
    for(i=0; i<4; i++){
        tcsZuobiao[0][i] = 1;
        tcsZuobiao[1][i] = i + 1;
    }
    int head = 3,tail = 0;

    for(i=1;i<=3;i++)
        tcsQipan[1][i]='*';    //蛇身
    tcsQipan[1][4]='#';       //蛇头

    int x1, y1;           // 随机出米
    srand(time(0));
    do{
  x1=rand()%20+1;
  y1=rand()%20+1;
 }while(tcsQipan[x1][y1]!=' ');
 tcsQipan[x1][y1]='*';

 cout<<"\n\n\t\t贪吃蛇游戏即将开始 !"<<endl;//准备开始;;
 long start;

    int grade = 1, length = 4;
    int gamespeed = 500;  //前进时间间隔
 for(i=3;i>=0;i--){
  start=clock();
  while(clock()-start<=1000);
  system("cls");
  if(i>0)
   cout << "\n\n\t\t进入倒计时：" << i << endl;
  else
   Refresh(tcsQipan,grade,gamespeed);
 }

    int timeover;
    char direction = 77;  // 初始情况下，向右运动
    int x,y;
    while(1){
        timeover = 1;
        start = clock();
        while((timeover=(clock()-start<=gamespeed))&&!kbhit());
             //如果有键按下或时间超过自动前进时间间隔则终止循环
        if(timeover){
            getch();direction = getch();
        }
        switch(direction){
        case 72: x= tcsZuobiao[0][head]-1; y= tcsZuobiao[1][head];break;     // 向上
        case 80: x= tcsZuobiao[0][head]+1; y= tcsZuobiao[1][head];break;      // 向下
        case 75: x= tcsZuobiao[0][head]; y= tcsZuobiao[1][head]-1;break;      // 向左
        case 77: x= tcsZuobiao[0][head]; y= tcsZuobiao[1][head]+1;           // 向右
        }
        if(!(direction==72||direction==80||direction==75 ||direction==77)){   //  按键非方向键
            cout << "\tGame over!" << endl;return 0;
        }
        if(x==0 || x==21 ||y==0 || y==21){   // 碰到墙壁
            cout << "\tGame over!" << endl;return 0;
        }
        if(tcsQipan[x][y]!=' '&&!(x==x1&&y==y1)){ //   蛇头碰到蛇身
            cout << "\tGame over!" << endl;return 0;
        }

        if(x==x1 && y==y1){      //  吃米，长度加1
            length ++;
            if(length>=8){
                length -= 8;
                grade ++;
                if(gamespeed>=200)
                    gamespeed = 550 - grade * 50; // 改变自动前进时间间隔
            }
            tcsQipan[x][y]= '#';
            tcsQipan[tcsZuobiao[0][head]][tcsZuobiao[1][head]] = '*';
            head = (head+1)%100;
            tcsZuobiao[0][head] = x;
            tcsZuobiao[1][head] = y;
            do
            {
                x1=rand()%20+1;
                y1=rand()%20+1;
            }while(tcsQipan[x1][y1]!=' ');
            tcsQipan[x1][y1]='*';
            Refresh(tcsQipan,grade,gamespeed);
        }
        else{       //  不吃米
            tcsQipan [tcsZuobiao[0][tail]][tcsZuobiao[1][tail]]=' ';
            tail=(tail+1)%100;
            tcsQipan [tcsZuobiao[0][head]][tcsZuobiao[1][head]]='*';
            head=(head+1)%100;
            tcsZuobiao[0][head]=x;
            tcsZuobiao[1][head]=y;
            tcsQipan[tcsZuobiao[0][head]][tcsZuobiao[1][head]]='#';
            Refresh(tcsQipan,grade,gamespeed);
        }
    }
    return 0;
}