NetBSD/games/hack/hack.mkmaze.c

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/* $NetBSD: hack.mkmaze.c,v 1.5 2001/03/25 20:44:01 jsm Exp $ */
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/*
* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
*/
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#include <sys/cdefs.h>
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#ifndef lint
__RCSID("$NetBSD: hack.mkmaze.c,v 1.5 2001/03/25 20:44:01 jsm Exp $");
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#endif /* not lint */
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#include "hack.h"
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#include "extern.h"
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#include "def.mkroom.h" /* not really used */
const struct permonst hell_hound =
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{"hell hound", 'd', 12, 14, 2, 3, 6, 0};
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void
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makemaz()
{
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int x, y;
int zx, zy;
coord mm;
boolean al = (dlevel >= 30 && !flags.made_amulet);
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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;
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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)) != NULL)
mtmp->msleep = 1;
if ((mtmp = makemon(PM_WIZARD, zx + 1, zy)) != NULL) {
mtmp->msleep = 1;
flags.no_of_wizards = 1;
}
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} else {
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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 */
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}
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for (x = 2; x < COLNO - 1; x++)
for (y = 2; y < ROWNO - 1; y++) {
switch (levl[x][y].typ) {
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case HWALL:
levl[x][y].scrsym = '-';
break;
case ROOM:
levl[x][y].scrsym = '.';
break;
}
}
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for (x = rn1(8, 11); x; x--) {
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mm = mazexy();
(void) mkobj_at(rn2(2) ? GEM_SYM : 0, mm.x, mm.y);
}
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for (x = rn1(10, 2); x; x--) {
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mm = mazexy();
(void) mkobj_at(ROCK_SYM, mm.x, mm.y);
}
mm = mazexy();
(void) makemon(PM_MINOTAUR, mm.x, mm.y);
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for (x = rn1(5, 7); x; x--) {
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mm = mazexy();
(void) makemon((struct permonst *) 0, mm.x, mm.y);
}
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for (x = rn1(6, 7); x; x--) {
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mm = mazexy();
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mkgold(0L, mm.x, mm.y);
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}
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for (x = rn1(6, 7); x; x--)
mktrap(0, 1, (struct mkroom *) 0);
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mm = mazexy();
levl[(xupstair = mm.x)][(yupstair = mm.y)].scrsym = '<';
levl[xupstair][yupstair].typ = STAIRS;
xdnstair = ydnstair = 0;
}
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void
walkfrom(x, y)
int x, y;
{
int q, a, dir;
int dirs[4];
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levl[x][y].typ = ROOM;
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while (1) {
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q = 0;
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for (a = 0; a < 4; a++)
if (okay(x, y, a))
dirs[q++] = a;
if (!q)
return;
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dir = dirs[rn2(q)];
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move(&x, &y, dir);
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levl[x][y].typ = ROOM;
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move(&x, &y, dir);
walkfrom(x, y);
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}
}
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void
move(x, y, dir)
int *x, *y;
int dir;
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{
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switch (dir) {
case 0:
--(*y);
break;
case 1:
(*x)++;
break;
case 2:
(*y)++;
break;
case 3:
--(*x);
break;
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}
}
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int
okay(x, y, dir)
int x, y;
int dir;
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{
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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);
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else
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return (1);
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}
coord
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mazexy()
{
coord mm;
mm.x = 3 + 2 * rn2(COLNO / 2 - 2);
mm.y = 3 + 2 * rn2(ROWNO / 2 - 2);
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return mm;
}