#include <dos.h>
#include <bios.h>
#include <stdlib.h>
#include <conio.h>
char getkey(void);
void window_3d(int,int,int,int,int,int);
int shuffle(int a[4][4]);
void soundl(void);
main()
{int i,j,x,y,a[4][4]={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,0};
char ch;
textmode(3);
textbackground(CYAN);
textcolor(RED);
clrscr();
gotoxy(25,19);
ptintf("F1:shuffle ESC:exit");
window_3d(22,6,54,16,BLUE,GREEN);
do
{gotoxy(3,3);
for(i=0;i<=3;i++)
{for(j=0;j<=3;j++)
if(a[i][j]==0)
{x=i;y=j;printf("");}
else
printf("%6d",a[i][j]);
gotoxy(3,5+i*2);
}
ch=getkey();
switch(ch)
{case 72:if(x!=3)
{a[x][y]=a[x+1][y];
a[x+1][y]=0;
}
else soundl();break;
case 80: if(x!=0)
{a[x][y]=a[x-1][y];
a[x-1][y]=0;
}
else soundl();break;
case 77:if(y!=0)
{a[x][y]=a[x][y-1];
a[x][y-1]=0;
}
else soundl();break;
case 75: if(y!=3)
{a[x][y]=a[x][y+1];
a[x][y+1]=0;
}
else soundl();
case 59: shuffle(a);break;
}
}while(ch!=1);
window_3d(int x1,int y1,int x2,int y2,int bk_color,int fo_color)
{textbackground(BLACK);
window(x1,y1,x2,y2);
clscr();
textbackground(bk_color);
textcolor(fo_color);
window(x1-2,y1-1,x2-2,y2-1);
clscr();
}
void soundl(void)
{sound(1064);
delay(100);
nosound();
}
char getkey()
{union{int i,char ch[2]}k;
k.i=bioskey(0);
return k.ch[1];
}
int shuffle(a[4][4])
{int num,i,j,t;
for(t=0;t<=100;t++)
{for(i=0;i<=3;i++)
for(j=0;j<=3;j++)
if(a[i][j]==0)
{switch(i)
{case 0: a[i][j]=a[i+1][j];a[i+1][j]=0;
break;
case 1:
case 2: num=rand()%2;
if(num=0)
{a[i][j]=a[i+1][j];
a[i+1][j]=0;
}
else
{a[i][j]=a[i-][j];
a[i-1][j]=0;
}
case 3: a[i][j]=a[i-1][j];a[i-1][j]=0;
break;
}
}
for(i=0;i<=3;i++)
for(j=0;j<=3;j++)
if(a[i][j]==0)
{switch(j)
{case 0: a[i][j]=a[i][j+1];a[i][j+1]=0;
break;
case 1:
case 2: num=rand()%2;
if(num=0)
{a[i][j]=a[i][j+1];
a[i][j+1]=0;
}
else
{a[i][j]=a[i][j-1];
a[i][j-1]=0;
} break;
case 3: a[i][j]=a[i][j-1];a[i][j-1]=0;
break;
}
}
}
}
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