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/* $OpenBSD: hack.mkmaze.c,v 1.4 2003/05/19 06:30:56 pjanzen Exp $ */
/*
* Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
* Amsterdam
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of the Stichting Centrum voor Wiskunde en
* Informatica, nor the names of its contributors may be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef lint
static const char rcsid[] = "$OpenBSD: hack.mkmaze.c,v 1.4 2003/05/19 06:30:56 pjanzen Exp $";
#endif /* not lint */
#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 int okay(int, int, int);
void
makemaz()
{
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;
}
(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[(int)(xupstair = mm.x)][(int)(yupstair = mm.y)].scrsym = '<';
levl[(int)xupstair][(int)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;
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);
}
}
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 int
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()
{
coord mm;
mm.x = 3 + 2*rn2(COLNO/2 - 2);
mm.y = 3 + 2*rn2(ROWNO/2 - 2);
return mm;
}
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