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/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* hack.mkmaze.c - version 1.0.2 */
/* $FreeBSD: src/games/hack/hack.mkmaze.c,v 1.4 1999/11/16 10:26:37 marcel Exp $ */
/* $DragonFly: src/games/hack/hack.mkmaze.c,v 1.3 2006/08/21 19:45:32 pavalos Exp $ */
#include "hack.h"
extern struct permonst pm_wizard;
struct permonst hell_hound =
{ "hell hound", 'd', 12, 14, 2, 3, 6, 0 };
static void walkfrom(int, int);
static void move(int *, int *, int);
static bool okay(int, int, int);
void
makemaz(void)
{
int x, y;
int 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) {
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;
}
mkobj_at(AMULET_SYM, zx, zy);
flags.made_amulet = 1;
walkfrom(zx + 4, zy);
if ((mtmp = makemon(&hell_hound, zx, zy)) != NULL)
mtmp->msleep = 1;
if ((mtmp = makemon(PM_WIZARD, zx + 1, zy)) != NULL) {
mtmp->msleep = 1;
flags.no_of_wizards = 1;
}
} else {
mm = mazexy();
zx = mm.x;
zy = mm.y;
walkfrom(zx, zy);
mksobj_at(WAN_WISHING, zx, zy);
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();
mkobj_at(rn2(2) ? GEM_SYM : 0, mm.x, mm.y);
}
for (x = rn1(10, 2); x; x--) {
mm = mazexy();
mkobj_at(ROCK_SYM, mm.x, mm.y);
}
mm = mazexy();
makemon(PM_MINOTAUR, mm.x, mm.y);
for (x = rn1(5, 7); x; x--) {
mm = mazexy();
makemon(NULL, 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, NULL);
mm = mazexy();
levl[(xupstair = mm.x)][(yupstair = mm.y)].scrsym = '<';
levl[xupstair][yupstair].typ = STAIRS;
xdnstair = ydnstair = 0;
}
static void
walkfrom(int x, int y)
{
int q, a, dir;
int dirs[4];
levl[x][y].typ = ROOM;
for (;;) {
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);
}
}
static void
move(int *x, int *y, int dir)
{
switch (dir) {
case 0:
--(*y);
break;
case 1:
(*x)++;
break;
case 2:
(*y)++;
break;
case 3:
--(*x);
break;
}
}
static bool
okay(int x, int y, 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(void)
{
coord mm;
mm.x = 3 + 2 * rn2(COLNO / 2 - 2);
mm.y = 3 + 2 * rn2(ROWNO / 2 - 2);
return (mm);
}
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