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#include <conio.h>
#include <windows.h>
using namespace std;
int n,mid=100,dif,headx,heady,flag,score;
int bx[]={0,-1,1,0,0}, by[]={0,0,0,-1,1};
int dox[15][15], doy[15][15], upx[15][15], upy[15][15], End[15][15];
char che[15][15];
int () {
int res=0;
char ch;
do {
ch=getch ();
switch (ch) {
case 72 : res=1; break ;
case 80 : res=2; break ;
case 75 : res=3; break ;
case 77 : res=4; break ;
default : break ;
}
} while (!res) ;
return res;
}
void Clean () {
system ("cls");
return ;
}
void Out () {
HANDLE hout=GetStdHandle(STD_OUTPUT_HANDLE);
Clean ();
printf ("Your score : %dn",score);
for (int i=1;i<=n;i++) printf("__");
puts ("");
for (int i=1;i<=n;i++)
{
printf ("|");
for (int j=1;j<=n;j++)
{
if (che[i][j]=='@') {
SetConsoleTextAttribute(hout,FOREGROUND_INTENSITY|FOREGROUND_RED);
printf("%c",che[i][j]);
SetConsoleTextAttribute(hout,FOREGROUND_INTENSITY|FOREGROUND_RED|FOREGROUND_GREEN|FOREGROUND_BLUE);
printf("|");
}
else if (che[i][j]=='#') {
SetConsoleTextAttribute(hout,FOREGROUND_INTENSITY|FOREGROUND_GREEN|FOREGROUND_BLUE);
printf("%c",che[i][j]);
SetConsoleTextAttribute(hout,FOREGROUND_INTENSITY|FOREGROUND_RED|FOREGROUND_GREEN|FOREGROUND_BLUE);
printf("|");
}
else if (che[i][j]=='+') {
SetConsoleTextAttribute(hout,FOREGROUND_INTENSITY|FOREGROUND_RED|FOREGROUND_GREEN);
printf("%c",che[i][j]);
SetConsoleTextAttribute(hout,FOREGROUND_INTENSITY|FOREGROUND_RED|FOREGROUND_GREEN|FOREGROUND_BLUE);
printf("|");
}
else printf("%c|",che[i][j]);
}
puts ("");
for (int j=1;j<=n;j++) printf("__");
puts ("");
}
}
void Food () {
int x,y;
do {
x=rand()%n+1;
y=rand()%n+1;
} while (che[x][y]!=' ');
che[x][y]='+';
return ;
}
void Be () {
puts ("input a number which as the length of chessboard.");
puts ("warning !!! the number should smaller than ten.");
scanf ("%d",&n);
Clean ();
puts ("Enter a number(1~10) to determine the difficulty of the game.");
puts ("The time interval is the input number *100ms.");
scanf("%d",&dif);
mid*=dif;
for (int i=1;i<=n;i++)
for (int j=1;j<=n;j++) che[i][j]=' ';
int x=rand()%n+1, y=rand()%n+1;
che[x][y]='@';
End[x][y]=1;
headx=x; heady=y;
flag=rand()%4+1;
do {
x=headx+bx[flag];
y=heady+by[flag];
if (x && y && x<=n && y<=n) break ;
flag=(flag+1)%4;
if (!flag) flag=1;
} while (1) ;
Food ();
Out ();
}
void is_fail (int x,int y) {
if (!x || !y || x>n || y>n || (che[x][y]!=' ' && che[x][y]!='+')) {
puts ("Emnnnnnn......");
puts ("Game Over");
system ("pause");
exit(0);
}
return ;
}
void Eat (int x,int y) {
score+=10-dif+1;
che[x][y]='@';
che[headx][heady]='#';
upx[headx][heady]=x;
upy[headx][heady]=y;
dox[x][y]=headx;
doy[x][y]=heady;
headx=x; heady=y;
Food ();
}
void Go (int x) {
int tox=headx+bx[x], toy=heady+by[x];
is_fail (tox,toy);
if (che[tox][toy]=='+') Eat (tox,toy);
else {
upx[headx][heady]=tox;
upy[headx][heady]=toy;
dox[tox][toy]=headx;
doy[tox][toy]=heady;
che[headx][heady]='#';
che[tox][toy]='@';
headx=tox; heady=toy;
while (!End[tox][toy]) {
int nowx=dox[tox][toy];
int nowy=doy[tox][toy];
if (End[nowx][nowy]) {
che[nowx][nowy]=' ';
End[nowx][nowy]=0;
End[tox][toy]=1;
break ;
}
tox=nowx; toy=nowy;
}
}
Out ();
return ;
}
void Move () {
double l=clock ();
int tim=1;
while ((tim=(clock()-l<mid)) && !kbhit ()) ;
if(!tim) {
Go (flag);
return ;
}
int want=Get ();
if (want==1 && flag==2) return ;
if (want==2 && flag==1) return ;
if (want==3 && flag==4) return ;
if (want==4 && flag==3) return ;
flag=want;
Go (flag);
return ;
}
int main ()
{
srand (time(0));
Be ();
while (1) Move ();
}
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