贪吃蛇小游戏 C++实现

#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;
}