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#include

#include

#include

#include

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<

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<

}

}

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<

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;

}