386BSD 0.1 development

[unix-history] / usr / othersrc / games / hack / hack.mkmaze.c

/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* hack.mkmaze.c - version 1.0.2 */

#include "hack.h"
#include "def.mkroom.h"         /* not really used */
extern struct monst *makemon();
extern struct permonst pm_wizard;
extern struct obj *mkobj_at();
extern coord mazexy();
struct permonst hell_hound =
       { "hell hound", 'd', 12, 14, 2, 3, 6, 0 };

makemaz()
{
       int x,y;
       register zx,zy;
       coord mm;
       boolean al = (dlevel >= 30 && !flags.made_amulet);

       for(x = 2; x < COLNO-1; x++)
               for(y = 2; y < ROWNO-1; y++)
                       levl[x][y].typ = (x%2 && y%2) ? 0 : HWALL;
       if(al) {
           register struct monst *mtmp;

           zx = 2*(COLNO/4) - 1;
           zy = 2*(ROWNO/4) - 1;
           for(x = zx-2; x < zx+4; x++) for(y = zy-2; y <= zy+2; y++) {
               levl[x][y].typ =
                   (y == zy-2 || y == zy+2 || x == zx-2 || x == zx+3) ? POOL :
                   (y == zy-1 || y == zy+1 || x == zx-1 || x == zx+2) ? HWALL:
                   ROOM;
           }
           (void) mkobj_at(AMULET_SYM, zx, zy);
           flags.made_amulet = 1;
           walkfrom(zx+4, zy);
           if(mtmp = makemon(&hell_hound, zx, zy))
               mtmp->msleep = 1;
           if(mtmp = makemon(PM_WIZARD, zx+1, zy)) {
               mtmp->msleep = 1;
               flags.no_of_wizards = 1;
           }
       } else {
           mm = mazexy();
           zx = mm.x;
           zy = mm.y;
           walkfrom(zx,zy);
           (void) mksobj_at(WAN_WISHING, zx, zy);
           (void) mkobj_at(ROCK_SYM, zx, zy);  /* put a rock on top of it */
       }

       for(x = 2; x < COLNO-1; x++)
               for(y = 2; y < ROWNO-1; y++) {
                       switch(levl[x][y].typ) {
                       case HWALL:
                               levl[x][y].scrsym = '-';
                               break;
                       case ROOM:
                               levl[x][y].scrsym = '.';
                               break;
                       }
               }
       for(x = rn1(8,11); x; x--) {
               mm = mazexy();
               (void) mkobj_at(rn2(2) ? GEM_SYM : 0, mm.x, mm.y);
       }
       for(x = rn1(10,2); x; x--) {
               mm = mazexy();
               (void) mkobj_at(ROCK_SYM, mm.x, mm.y);
       }
       mm = mazexy();
       (void) makemon(PM_MINOTAUR, mm.x, mm.y);
       for(x = rn1(5,7); x; x--) {
               mm = mazexy();
               (void) makemon((struct permonst *) 0, mm.x, mm.y);
       }
       for(x = rn1(6,7); x; x--) {
               mm = mazexy();
               mkgold(0L,mm.x,mm.y);
       }
       for(x = rn1(6,7); x; x--)
               mktrap(0,1,(struct mkroom *) 0);
       mm = mazexy();
       levl[(xupstair = mm.x)][(yupstair = mm.y)].scrsym = '<';
       levl[xupstair][yupstair].typ = STAIRS;
       xdnstair = ydnstair = 0;
}

walkfrom(x,y) int x,y; {
register int q,a,dir;
int dirs[4];
       levl[x][y].typ = ROOM;
       while(1) {
               q = 0;
               for(a = 0; a < 4; a++)
                       if(okay(x,y,a)) dirs[q++]= a;
               if(!q) return;
               dir = dirs[rn2(q)];
               move(&x,&y,dir);
               levl[x][y].typ = ROOM;
               move(&x,&y,dir);
               walkfrom(x,y);
       }
}

move(x,y,dir)
register int *x, *y;
register int dir;
{
       switch(dir){
               case 0: --(*y); break;
               case 1: (*x)++; break;
               case 2: (*y)++; break;
               case 3: --(*x); break;
       }
}

okay(x,y,dir)
int x,y;
register int dir;
{
       move(&x,&y,dir);
       move(&x,&y,dir);
       if(x<3 || y<3 || x>COLNO-3 || y>ROWNO-3 || levl[x][y].typ != 0)
               return(0);
       else
               return(1);
}

coord
mazexy(){
       coord mm;
       mm.x = 3 + 2*rn2(COLNO/2 - 2);
       mm.y = 3 + 2*rn2(ROWNO/2 - 2);
       return mm;
}