/*
** fillmaze.c  Copyright 1991 Kent Paul Dolan,
**             Mountain View, CA, USA 94039-0755
**
** Written to satisfy an inquiry on USENet's rec.games.programmer newsgroup.
** May be freely used or modified in any non-commercial work.  Copyrighted
** only to prevent patenting by someone else.
*/

#include <stdio.h>
#include "townmaze.h"
#include "townproto.h"

#ifdef __STDC__
void fillmaze()
#else
int fillmaze()
#endif
{
  int i, j;

#if PROGRESS
  fprintf(stderr,"Fill maze ");
#endif

/*
** Fill maze with "wall" characters and "blank" characters,
** so that entire maze starts out as doorless rooms with walls
** between.
*/

  for (i = 0; i < mazeheight; i++)
    for (j = 0; j < mazewidth; j++)
      switch (((i%2)<<1) + (j%2))
      {
      case 0:
        cmaze[i][j] = WALL;
        break;
      case 1:
        cmaze[i][j] = WALL;
        break;
      case 2:
        cmaze[i][j] = WALL;
        break;
      case 3:
        cmaze[i][j] = BLANK;
        break;
      default:
        fprintf(stderr,"failure in maze fill section\n");
        freespace();
        exit(1);
      }
/*
** The corner cells are too hard to use, so nuke them in the drawing.
*/

  cmaze[1][1]                 = WALL;
  cmaze[1][mazewidth - 2]         = WALL;
  cmaze[mazeheight - 2][1]        = WALL;
  cmaze[mazeheight -2][mazewidth - 2] = WALL;

  return;
}