oxy(x,y); }
break;
case Del: if(y-2==StartPlace.y&&x/2-1==StartPlace.x) b_start=FALSE;
if(y-2==EndPlace.y&&x/2-1==EndPlace.x) b_end=FALSE;
putch('''''''''''''''''''''''''''''''' ''''''''''''''''''''''''''''''''); Maze[y-2][x/2-1]=1; gotoxy(x,y);
break;
case Enter: if(y-2==StartPlace.y&&x/2-1==StartPlace.x) break;
if(y-2==EndPlace.y&&x/2-1==EndPlace.x) break;
putch(''''''''''''''''''''''''''''''''#''''''''''''''''''''''''''''''''); Maze[y-2][x/2-1]=0; gotoxy(x,y);
break;
case Home: if(Maze[y-2][x/2-1]&&!b_start)
{
StartPlace.x=x/2-1;
StartPlace.y=y-2;
putch(''''''''''''''''''''''''''''''''S'''''''''''''''''''''''''''''''');
gotoxy(x,y);
b_start=TRUE;
}
break;
case End: if(Maze[y-2][x/2-1]&&!b_end)
{
EndPlace.x=x/2-1;
EndPlace.y=y-2;
putch(''''''''''''''''''''''''''''''''E'''''''''''''''''''''''''''''''');
gotoxy(x,y);
b_end=TRUE;
}
break;
case Esc: gotoxy(2,22); printf("exit"); sleep(1); exit(1);
case F9: if(b_start&&b_end) flag=TRUE; break;
case F2: gotoxy(2,22);
printf("Savename:");
scanf("%s",savename);
gotoxy(2,22);
if(SaveMaze(savename)) printf("Save OK! ");
else printf("Save fail! ");
sleep(1);
gotoxy(2,22);
printf(" ");
gotoxy(x,y);
break;
default: break;
}
}
while(!flag);
for(i=0;i<30;i )
for(j=0;j<20;j )
{
maze[j][i].=Maze[j][i];
maze[j][i].mark=0;
maze[j][i].foot=0;
}
}
Status LoadMaze(char *file)
/* The maze has been loaded. */
{
FILE *fp;
char *buffer;
char ch;
int i=0,j,k;
Boolean len=FALSE,wid=FALSE;
if((fp=fopen(file,"r"))==NULL)
return ERROR;
buffer=(char *)malloc(600*sizeof(char));
ch=fgetc(fp);
while(ch!=EOF)
{
buffer[i]=ch;
i ;
ch=fgetc(fp);
}
m=30;n=20;
for(i=0;i<600;i )
{
j=i/30; k=i0;
if(buffer[i]==''''''''''''''''''''''''''''''''2''''''''''''''''''''''''''''''''&&!len){ m=i; len=TRUE; }
if(k==0&&buffer[i]==''''''''''''''''''''''''''''''''2''''''''''''''''''''''''''''''''&&!wid){ n=j; wid=TRUE; }
switch(buffer[i])
{
case ''''''''''''''''''''''''''''''''0'''''''''''''''''''''''''''''''': Maze[j][k]=0; break;
case ''''''''''''''''''''''''''''''''1'''''''''''''''''''''''''''''''': Maze[j][k]=1; break;
case ''''''''''''''''''''''''''''''''2'''''''''''''''''''''''''''''''': Maze[j][k]=2; break;
case ''''''''''''''''''''''''''''''''3'''''''''''''''''''''''''''''''': Maze[j][k]=1;
StartPlace.x=k;
StartPlace.y=j;
b_start=TRUE;
break;
case ''''''''''''''''''''''''''''''''4'''''''''''''''''''''''''''''''': Maze[j][k]=1;
EndPlace.x=k;
EndPlace.y=j;
b_end=TRUE;
break;
default : break;
}
}
fclose(fp);
clrscr();
for(i=0;i<30;i )
for(j=0;j<20;j )
{
maze[j][i].=Maze[j][i];
maze[j][i].foot=0;
maze[j][i].mark=0;
if(Maze[j][i]==0)
{
gotoxy(2*i 2,j 2);
putch(''''''''''''''''''''''''''''''''#'''''''''''''''''''''''''''''''');
}
}
gotoxy(2*StartPlace.x 2,StartPlace.y 2);
putch(''''''''''''''''''''''''''''''''S'''''''''''''''''''''''''''''''');
gotoxy(2*EndPlace.x 2,EndPlace.y 2);
putch(''''''''''''''''''''''''''''''''E'''''''''''''''''''''''''''''''');
return OK;
}
Status SaveMaze(char *filename)
/* The maze has been saved. */
{
FILE *fp;
char *buffer;
int i,j,k;
fp=fopen(filename,"wb");
buffer=(char *)malloc(600*sizeof(char));
for(i=0;i<600;i )
{
j=i/30; k=i0;
switch(Maze[j][k])
{
case 0: buffer[i]=''''''''''''''''''''''''''''''''0''''''''''''''''''''''''''''''''; break;
case 1: buffer[i]=''''''''''''''''''''''''''''''''1''''''''''''''''''''''''''''''''; break;
case 2: buffer[i]=''''''''''''''''''''''''''''''''2''''''''''''''''''''''''''''''''; break;
default : Error("Write"); break;
}
if(k==StartPlace.x&&j==StartPlace.y) buffer[i]=''''''''''''''''''''''''''''''''3'''''''''''''''''''''''''''''''';
if(k==EndPlace.x&&j==EndPlace.y) buffer[i]=''''''''''''''''''''''''''''''''4'''''''''''''''''''''''''''''''';
}
fwrite(buffer,600,1,fp);
free(buffer);
fclose(fp);
return OK;
}
void Error(char *message)
{
clrscr();
fprintf(serr,"Error:%s\n",message);
exit(1);
} /* Error */
Status InitStack(Stack *s)
/* The stack s has been created and is initialized to be empty. */
{
s->base=(SElemType *)malloc(STACK_INIT_SIZE*sizeof(SElemType));
if(!s->base) Error("Overflow");
s->top=s->base;
s->stacksize=STACK_INIT_SIZE;
return OK;
} /* InitStack */
Status DesoyStack(Stack *s)
/* The stack s has been desoyed. */
{
s->top=NULL;
s->stacksize=0;
free(s->base);
s->base=NULL;
return OK;
} /* DesoyStack */
Status ClearStack(Stack *s)
/* The stack has been clear to be maximum. */
{
s->top=s->ba
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