games/hack/hack.mkmaze.c

   1 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
   2 /* hack.mkmaze.c - version 1.0.2 */
   3 /* $FreeBSD: src/games/hack/hack.mkmaze.c,v 1.4 1999/11/16 10:26:37 marcel Exp $ */
   4 /* $DragonFly: src/games/hack/hack.mkmaze.c,v 1.2 2003/06/17 04:25:24 dillon Exp $ */
   5
   6 #include "hack.h"
   7 #include "def.mkroom.h"         /* not really used */
   8 extern struct monst *makemon();
   9 extern struct permonst pm_wizard;
  10 extern struct obj *mkobj_at();
  11 extern coord mazexy();
  12 struct permonst hell_hound =
  13         { "hell hound", 'd', 12, 14, 2, 3, 6, 0 };
  14
  15 makemaz()
  16 {
  17         int x,y;
  18         int zx,zy;
  19         coord mm;
  20         boolean al = (dlevel >= 30 && !flags.made_amulet);
  21
  22         for(x = 2; x < COLNO-1; x++)
  23                 for(y = 2; y < ROWNO-1; y++)
  24                         levl[x][y].typ = (x%2 && y%2) ? 0 : HWALL;
  25         if(al) {
  26             struct monst *mtmp;
  27
  28             zx = 2*(COLNO/4) - 1;
  29             zy = 2*(ROWNO/4) - 1;
  30             for(x = zx-2; x < zx+4; x++) for(y = zy-2; y <= zy+2; y++) {
  31                 levl[x][y].typ =
  32                     (y == zy-2 || y == zy+2 || x == zx-2 || x == zx+3) ? POOL :
  33                     (y == zy-1 || y == zy+1 || x == zx-1 || x == zx+2) ? HWALL:
  34                     ROOM;
  35             }
  36             (void) mkobj_at(AMULET_SYM, zx, zy);
  37             flags.made_amulet = 1;
  38             walkfrom(zx+4, zy);
  39             if(mtmp = makemon(&hell_hound, zx, zy))
  40                 mtmp->msleep = 1;
  41             if(mtmp = makemon(PM_WIZARD, zx+1, zy)) {
  42                 mtmp->msleep = 1;
  43                 flags.no_of_wizards = 1;
  44             }
  45         } else {
  46             mm = mazexy();
  47             zx = mm.x;
  48             zy = mm.y;
  49             walkfrom(zx,zy);
  50             (void) mksobj_at(WAN_WISHING, zx, zy);
  51             (void) mkobj_at(ROCK_SYM, zx, zy);  /* put a rock on top of it */
  52         }
  53
  54         for(x = 2; x < COLNO-1; x++)
  55                 for(y = 2; y < ROWNO-1; y++) {
  56                         switch(levl[x][y].typ) {
  57                         case HWALL:
  58                                 levl[x][y].scrsym = '-';
  59                                 break;
  60                         case ROOM:
  61                                 levl[x][y].scrsym = '.';
  62                                 break;
  63                         }
  64                 }
  65         for(x = rn1(8,11); x; x--) {
  66                 mm = mazexy();
  67                 (void) mkobj_at(rn2(2) ? GEM_SYM : 0, mm.x, mm.y);
  68         }
  69         for(x = rn1(10,2); x; x--) {
  70                 mm = mazexy();
  71                 (void) mkobj_at(ROCK_SYM, mm.x, mm.y);
  72         }
  73         mm = mazexy();
  74         (void) makemon(PM_MINOTAUR, mm.x, mm.y);
  75         for(x = rn1(5,7); x; x--) {
  76                 mm = mazexy();
  77                 (void) makemon((struct permonst *) 0, mm.x, mm.y);
  78         }
  79         for(x = rn1(6,7); x; x--) {
  80                 mm = mazexy();
  81                 mkgold(0L,mm.x,mm.y);
  82         }
  83         for(x = rn1(6,7); x; x--)
  84                 mktrap(0,1,(struct mkroom *) 0);
  85         mm = mazexy();
  86         levl[(xupstair = mm.x)][(yupstair = mm.y)].scrsym = '<';
  87         levl[xupstair][yupstair].typ = STAIRS;
  88         xdnstair = ydnstair = 0;
  89 }
  90
  91 walkfrom(x,y) int x,y; {
  92 int q,a,dir;
  93 int dirs[4];
  94         levl[x][y].typ = ROOM;
  95         while(1) {
  96                 q = 0;
  97                 for(a = 0; a < 4; a++)
  98                         if(okay(x,y,a)) dirs[q++]= a;
  99                 if(!q) return;
 100                 dir = dirs[rn2(q)];
 101                 move(&x,&y,dir);
 102                 levl[x][y].typ = ROOM;
 103                 move(&x,&y,dir);
 104                 walkfrom(x,y);
 105         }
 106 }
 107
 108 move(x,y,dir)
 109 int *x, *y;
 110 int dir;
 111 {
 112         switch(dir){
 113                 case 0: --(*y); break;
 114                 case 1: (*x)++; break;
 115                 case 2: (*y)++; break;
 116                 case 3: --(*x); break;
 117         }
 118 }
 119
 120 okay(x,y,dir)
 121 int x,y;
 122 int dir;
 123 {
 124         move(&x,&y,dir);
 125         move(&x,&y,dir);
 126         if(x<3 || y<3 || x>COLNO-3 || y>ROWNO-3 || levl[x][y].typ != 0)
 127                 return(0);
 128         else
 129                 return(1);
 130 }
 131
 132 coord
 133 mazexy(){
 134         coord mm;
 135         mm.x = 3 + 2*rn2(COLNO/2 - 2);
 136         mm.y = 3 + 2*rn2(ROWNO/2 - 2);
 137         return mm;
 138 }