xref: /src/games/hack/hack.search.c

/*	$NetBSD: hack.search.c,v 1.6 2009/06/07 18:30:39 dholland 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 (at) 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.
 */

#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: hack.search.c,v 1.6 2009/06/07 18:30:39 dholland Exp $");
#endif				/* not lint */

#include "hack.h"
#include "extern.h"

int
findit(void)
{				/* returns number of things found */
	int             num;
	xchar           zx, zy;
	struct trap    *ttmp;
	struct monst   *mtmp;
	xchar           lx, hx, ly, hy;

	if (u.uswallow)
		return (0);
	for (lx = u.ux; (num = levl[lx - 1][u.uy].typ) && num != CORR; lx--);
	for (hx = u.ux; (num = levl[hx + 1][u.uy].typ) && num != CORR; hx++);
	for (ly = u.uy; (num = levl[u.ux][ly - 1].typ) && num != CORR; ly--);
	for (hy = u.uy; (num = levl[u.ux][hy + 1].typ) && num != CORR; hy++);
	num = 0;
	for (zy = ly; zy <= hy; zy++)
		for (zx = lx; zx <= hx; zx++) {
			if (levl[zx][zy].typ == SDOOR) {
				levl[zx][zy].typ = DOOR;
				atl(zx, zy, '+');
				num++;
			} else if (levl[zx][zy].typ == SCORR) {
				levl[zx][zy].typ = CORR;
				atl(zx, zy, CORR_SYM);
				num++;
			} else if ((ttmp = t_at(zx, zy)) != NULL) {
				if (ttmp->ttyp == PIERC) {
					(void) makemon(PM_PIERCER, zx, zy);
					num++;
					deltrap(ttmp);
				} else if (!ttmp->tseen) {
					ttmp->tseen = 1;
					if (!vism_at(zx, zy))
						atl(zx, zy, '^');
					num++;
				}
			} else if ((mtmp = m_at(zx, zy)) != NULL)
				if (mtmp->mimic) {
					seemimic(mtmp);
					num++;
				}
		}
	return (num);
}

int
dosearch(void)
{
	xchar           x, y;
	struct trap    *trap;
	struct monst   *mtmp;

	if (u.uswallow)
		pline("What are you looking for? The exit?");
	else
		for (x = u.ux - 1; x < u.ux + 2; x++)
			for (y = u.uy - 1; y < u.uy + 2; y++)
				if (x != u.ux || y != u.uy) {
					if (levl[x][y].typ == SDOOR) {
						if (rn2(7))
							continue;
						levl[x][y].typ = DOOR;
						levl[x][y].seen = 0;	/* force prl */
						prl(x, y);
						nomul(0);
					} else if (levl[x][y].typ == SCORR) {
						if (rn2(7))
							continue;
						levl[x][y].typ = CORR;
						levl[x][y].seen = 0;	/* force prl */
						prl(x, y);
						nomul(0);
					} else {
						/*
						 * Be careful not to find
						 * anything in an SCORR or
						 * SDOOR
						 */
						if ((mtmp = m_at(x, y)) != NULL)
							if (mtmp->mimic) {
								seemimic(mtmp);
								pline("You find a mimic.");
								return (1);
							}
						for (trap = ftrap; trap; trap = trap->ntrap)
							if (trap->tx == x && trap->ty == y &&
							    !trap->tseen && !rn2(8)) {
								nomul(0);
								pline("You find a%s.", traps[trap->ttyp]);
								if (trap->ttyp == PIERC) {
									deltrap(trap);
									(void) makemon(PM_PIERCER, x, y);
									return (1);
								}
								trap->tseen = 1;
								if (!vism_at(x, y))
									atl(x, y, '^');
							}
					}
				}
	return (1);
}

int
doidtrap(void)
{
	struct trap    *trap;
	int             x, y;
	if (!getdir(1))
		return (0);
	x = u.ux + u.dx;
	y = u.uy + u.dy;
	for (trap = ftrap; trap; trap = trap->ntrap)
		if (trap->tx == x && trap->ty == y && trap->tseen) {
			if (u.dz)
				if ((u.dz < 0) != (!xdnstair && trap->ttyp == TRAPDOOR))
					continue;
			pline("That is a%s.", traps[trap->ttyp]);
			return (0);
		}
	pline("I can't see a trap there.");
	return (0);
}

void
wakeup(struct monst *mtmp)
{
	mtmp->msleep = 0;
	setmangry(mtmp);
	if (mtmp->mimic)
		seemimic(mtmp);
}

/* NOTE: we must check if(mtmp->mimic) before calling this routine */
void
seemimic(struct monst *mtmp)
{
	mtmp->mimic = 0;
	mtmp->mappearance = 0;
	unpmon(mtmp);
	pmon(mtmp);
}