hack/hack.mkmaze.c

   1 /*
   2  * Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
   3  */
   4
   5 #ifndef lint
   6 static char rcsid[] = "$NetBSD: hack.mkmaze.c,v 1.3 1995/03/23 08:30:46 cgd Exp $";
   7 #endif /* not lint */
   8
   9 #include "hack.h"
  10 #include "def.mkroom.h"         /* not really used */
  11 extern struct monst *makemon();
  12 extern struct permonst pm_wizard;
  13 extern struct obj *mkobj_at();
  14 extern coord mazexy();
  15 struct permonst hell_hound =
  16         { "hell hound", 'd', 12, 14, 2, 3, 6, 0 };
  17
  18 makemaz()
  19 {
  20         int x,y;
  21         register zx,zy;
  22         coord mm;
  23         boolean al = (dlevel >= 30 && !flags.made_amulet);
  24
  25         for(x = 2; x < COLNO-1; x++)
  26                 for(y = 2; y < ROWNO-1; y++)
  27                         levl[x][y].typ = (x%2 && y%2) ? 0 : HWALL;
  28         if(al) {
  29             register struct monst *mtmp;
  30
  31             zx = 2*(COLNO/4) - 1;
  32             zy = 2*(ROWNO/4) - 1;
  33             for(x = zx-2; x < zx+4; x++) for(y = zy-2; y <= zy+2; y++) {
  34                 levl[x][y].typ =
  35                     (y == zy-2 || y == zy+2 || x == zx-2 || x == zx+3) ? POOL :
  36                     (y == zy-1 || y == zy+1 || x == zx-1 || x == zx+2) ? HWALL:
  37                     ROOM;
  38             }
  39             (void) mkobj_at(AMULET_SYM, zx, zy);
  40             flags.made_amulet = 1;
  41             walkfrom(zx+4, zy);
  42             if(mtmp = makemon(&hell_hound, zx, zy))
  43                 mtmp->msleep = 1;
  44             if(mtmp = makemon(PM_WIZARD, zx+1, zy)) {
  45                 mtmp->msleep = 1;
  46                 flags.no_of_wizards = 1;
  47             }
  48         } else {
  49             mm = mazexy();
  50             zx = mm.x;
  51             zy = mm.y;
  52             walkfrom(zx,zy);
  53             (void) mksobj_at(WAN_WISHING, zx, zy);
  54             (void) mkobj_at(ROCK_SYM, zx, zy);  /* put a rock on top of it */
  55         }
  56
  57         for(x = 2; x < COLNO-1; x++)
  58                 for(y = 2; y < ROWNO-1; y++) {
  59                         switch(levl[x][y].typ) {
  60                         case HWALL:
  61                                 levl[x][y].scrsym = '-';
  62                                 break;
  63                         case ROOM:
  64                                 levl[x][y].scrsym = '.';
  65                                 break;
  66                         }
  67                 }
  68         for(x = rn1(8,11); x; x--) {
  69                 mm = mazexy();
  70                 (void) mkobj_at(rn2(2) ? GEM_SYM : 0, mm.x, mm.y);
  71         }
  72         for(x = rn1(10,2); x; x--) {
  73                 mm = mazexy();
  74                 (void) mkobj_at(ROCK_SYM, mm.x, mm.y);
  75         }
  76         mm = mazexy();
  77         (void) makemon(PM_MINOTAUR, mm.x, mm.y);
  78         for(x = rn1(5,7); x; x--) {
  79                 mm = mazexy();
  80                 (void) makemon((struct permonst *) 0, mm.x, mm.y);
  81         }
  82         for(x = rn1(6,7); x; x--) {
  83                 mm = mazexy();
  84                 mkgold(0L,mm.x,mm.y);
  85         }
  86         for(x = rn1(6,7); x; x--)
  87                 mktrap(0,1,(struct mkroom *) 0);
  88         mm = mazexy();
  89         levl[(xupstair = mm.x)][(yupstair = mm.y)].scrsym = '<';
  90         levl[xupstair][yupstair].typ = STAIRS;
  91         xdnstair = ydnstair = 0;
  92 }
  93
  94 walkfrom(x,y) int x,y; {
  95 register int q,a,dir;
  96 int dirs[4];
  97         levl[x][y].typ = ROOM;
  98         while(1) {
  99                 q = 0;
 100                 for(a = 0; a < 4; a++)
 101                         if(okay(x,y,a)) dirs[q++]= a;
 102                 if(!q) return;
 103                 dir = dirs[rn2(q)];
 104                 move(&x,&y,dir);
 105                 levl[x][y].typ = ROOM;
 106                 move(&x,&y,dir);
 107                 walkfrom(x,y);
 108         }
 109 }
 110
 111 move(x,y,dir)
 112 register int *x, *y;
 113 register int dir;
 114 {
 115         switch(dir){
 116                 case 0: --(*y); break;
 117                 case 1: (*x)++; break;
 118                 case 2: (*y)++; break;
 119                 case 3: --(*x); break;
 120         }
 121 }
 122
 123 okay(x,y,dir)
 124 int x,y;
 125 register int dir;
 126 {
 127         move(&x,&y,dir);
 128         move(&x,&y,dir);
 129         if(x<3 || y<3 || x>COLNO-3 || y>ROWNO-3 || levl[x][y].typ != 0)
 130                 return(0);
 131         else
 132                 return(1);
 133 }
 134
 135 coord
 136 mazexy(){
 137         coord mm;
 138         mm.x = 3 + 2*rn2(COLNO/2 - 2);
 139         mm.y = 3 + 2*rn2(ROWNO/2 - 2);
 140         return mm;
 141 }