path: root/hack/hack.mkshop.c

/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* hack.mkshop.c - version 1.0.3 */
/* $FreeBSD: src/games/hack/hack.mkshop.c,v 1.4 1999/11/16 10:26:37 marcel Exp $ */
/* $DragonFly: src/games/hack/hack.mkshop.c,v 1.4 2006/08/21 19:45:32 pavalos Exp $ */

#ifndef QUEST
#include "hack.h"
#include "def.eshk.h"
#define	ESHK	((struct eshk *)(&(shk->mextra[0])))
extern int nroom;
extern char shtypes[];	/* = "=/)%?!["; 8 types: 7 specialized, 1 mixed */
schar shprobs[] = { 3,3,5,5,10,10,14,50 };	/* their probabilities */

static struct permonst *morguemon(void);
static bool nexttodoor(int, int);
static bool has_dnstairs(struct mkroom *);
static bool has_upstairs(struct mkroom *);
static bool isbig(struct mkroom *);
static int dist2(int, int, int, int);
static int sq(int);

void
mkshop(void)
{
	struct mkroom *sroom;
	int sh, sx, sy, i = -1;
	char let;
	int roomno;
	struct monst *shk;

#ifdef WIZARD
	/* first determine shoptype */
	if (wizard) {
		char *ep = getenv("SHOPTYPE");
		if (ep) {
			if (*ep == 'z' || *ep == 'Z') {
				mkzoo(ZOO);
				return;
			}
			if (*ep == 'm' || *ep == 'M') {
				mkzoo(MORGUE);
				return;
			}
			if (*ep == 'b' || *ep == 'B') {
				mkzoo(BEEHIVE);
				return;
			}
			if (*ep == 's' || *ep == 'S') {
				mkswamp();
				return;
			}
			for (i = 0; shtypes[i]; i++)
				if (*ep == shtypes[i])
					break;
			goto gottype;
		}
	}
gottype:
#endif /* WIZARD */
	for (sroom = &rooms[0], roomno = 0;; sroom++, roomno++) {
		if (sroom->hx < 0)
			return;
		if (sroom - rooms >= nroom) {
			pline("rooms not closed by -1?");
			return;
		}
		if (sroom->rtype)
			continue;
		if (!sroom->rlit || has_dnstairs(sroom) || has_upstairs(sroom))
			continue;
		if (
#ifdef WIZARD
		    (wizard && getenv("SHOPTYPE") && sroom->doorct != 0) ||
#endif /* WIZARD */
		    (sroom->doorct <= 2 && sroom->doorct > 0))
			break;
	}

	if (i < 0) {		/* shoptype not yet determined */
		int j;

		for (j = rn2(100), i = 0; (j -= shprobs[i]) >= 0; i++)
			if (!shtypes[i])	/* superfluous */
				break;
		if (isbig(sroom) && i + SHOPBASE == WANDSHOP)
			i = GENERAL - SHOPBASE;
	}
	sroom->rtype = i + SHOPBASE;
	let = shtypes[i];
	sh = sroom->fdoor;
	sx = doors[sh].x;
	sy = doors[sh].y;
	if (sx == sroom->lx - 1)
		sx++;
	else if (sx == sroom->hx + 1)
		sx--;
	else if (sy == sroom->ly - 1)
		sy++;
	else if (sy == sroom->hy + 1)
		sy--;
	else {
#ifdef WIZARD
		/* This is said to happen sometimes, but I've never seen it. */
		if (wizard) {
			int j = sroom->doorct;

			pline("Where is shopdoor?");
			pline("Room at (%d,%d),(%d,%d).", sroom->lx, sroom->ly,
			      sroom->hx, sroom->hy);
			pline("doormax=%d doorct=%d fdoor=%d",
			      doorindex, sroom->doorct, sh);
			while (j--) {
				pline("door [%d,%d]", doors[sh].x, doors[sh].y);
				sh++;
			}
			more();
		}
#endif /* WIZARD */
		return;
	}
	if (!(shk = makemon(PM_SHK, sx, sy)))
		return;
	shk->isshk = shk->mpeaceful = 1;
	shk->msleep = 0;
	shk->mtrapseen = ~0;	/* we know all the traps already */
	ESHK->shoproom = roomno;
	ESHK->shoplevel = dlevel;
	ESHK->shd = doors[sh];
	ESHK->shk.x = sx;
	ESHK->shk.y = sy;
	ESHK->robbed = 0;
	ESHK->visitct = 0;
	ESHK->following = 0;
	shk->mgold = 1000 + 30 * rnd(100);	/* initial capital */
	ESHK->billct = 0;
	findname(ESHK->shknam, let);
	for (sx = sroom->lx; sx <= sroom->hx; sx++)
		for (sy = sroom->ly; sy <= sroom->hy; sy++) {
			struct monst *mtmp;
			if ((sx == sroom->lx && doors[sh].x == sx - 1) ||
			    (sx == sroom->hx && doors[sh].x == sx + 1) ||
			    (sy == sroom->ly && doors[sh].y == sy - 1) ||
			    (sy == sroom->hy && doors[sh].y == sy + 1))
				continue;
			if (rn2(100) < dlevel && !m_at(sx, sy) &&
			    (mtmp = makemon(PM_MIMIC, sx, sy))) {
				mtmp->mimic = 1;
				mtmp->mappearance =
					(let && rn2(10) < dlevel) ? let : ']';
				continue;
			}
			mkobj_at(let, sx, sy);
		}
}

void
mkzoo(int type)
{
	struct mkroom *sroom;
	struct monst *mon;
	int sh, sx, sy, i;
	int goldlim = 500 * dlevel;
	int moct = 0;

	i = nroom;
	for (sroom = &rooms[rn2(nroom)];; sroom++) {
		if (sroom == &rooms[nroom])
			sroom = &rooms[0];
		if (!i-- || sroom->hx < 0)
			return;
		if (sroom->rtype)
			continue;
		if (type == MORGUE && sroom->rlit)
			continue;
		if (has_upstairs(sroom) || (has_dnstairs(sroom) && rn2(3)))
			continue;
		if (sroom->doorct == 1 || !rn2(5))
			break;
	}
	sroom->rtype = type;
	sh = sroom->fdoor;
	for (sx = sroom->lx; sx <= sroom->hx; sx++)
		for (sy = sroom->ly; sy <= sroom->hy; sy++) {
			if ((sx == sroom->lx && doors[sh].x == sx - 1) ||
			    (sx == sroom->hx && doors[sh].x == sx + 1) ||
			    (sy == sroom->ly && doors[sh].y == sy - 1) ||
			    (sy == sroom->hy && doors[sh].y == sy + 1))
				continue;
			mon = makemon(
				(type == MORGUE) ? morguemon() :
				(type == BEEHIVE) ? PM_KILLER_BEE : NULL,
				sx, sy);
			if (mon)
				mon->msleep = 1;
			switch (type) {
			case ZOO:
				i = sq(dist2(sx, sy, doors[sh].x, doors[sh].y));
				if (i >= goldlim)
					i = 5 * dlevel;
				goldlim -= i;
				mkgold((long)(10 + rn2(i)), sx, sy);
				break;
			case MORGUE:
				/* Usually there is one dead body in the morgue */
				if (!moct && rn2(3)) {
					mksobj_at(CORPSE, sx, sy);
					moct++;
				}
				break;
			case BEEHIVE:
				if (!rn2(3))
					mksobj_at(LUMP_OF_ROYAL_JELLY, sx, sy);
				break;
			}
		}
}

static struct permonst *
morguemon(void)
{
	int i = rn2(100), hd = rn2(dlevel);

	if (hd > 10 && i < 10)
		return (PM_DEMON);
	if (hd > 8 && i > 85)
		return (PM_VAMPIRE);
	return ((i < 40) ? PM_GHOST : (i < 60) ? PM_WRAITH : PM_ZOMBIE);
}

void
mkswamp(void)   /* Michiel Huisjes & Fred de Wilde */
{
	struct mkroom *sroom;
	int sx, sy, i, eelct = 0;

	for (i = 0; i < 5; i++) {	/* 5 tries */
		sroom = &rooms[rn2(nroom)];
		if (sroom->hx < 0 || sroom->rtype ||
		    has_upstairs(sroom) || has_dnstairs(sroom))
			continue;

		/* satisfied; make a swamp */
		sroom->rtype = SWAMP;
		for (sx = sroom->lx; sx <= sroom->hx; sx++)
			for (sy = sroom->ly; sy <= sroom->hy; sy++)
				if ((sx + sy) % 2 && !o_at(sx, sy) &&
				    !t_at(sx, sy) && !m_at(sx, sy) &&
				    !nexttodoor(sx, sy)) {
					levl[sx][sy].typ = POOL;
					levl[sx][sy].scrsym = POOL_SYM;
					if (!eelct || !rn2(4)) {
						makemon(PM_EEL, sx, sy);
						eelct++;
					}
				}
	}
}

static bool
nexttodoor(int sx, int sy)
{
	int dx, dy;
	struct rm *lev;
	for (dx = -1; dx <= 1; dx++)
		for (dy = -1; dy <= 1; dy++)
			if ((lev = &levl[sx + dx][sy + dy])->typ == DOOR ||
			    lev->typ == SDOOR || lev->typ == LDOOR)
				return (1);
	return (0);
}

static bool
has_dnstairs(struct mkroom *sroom)
{
	return (sroom->lx <= xdnstair && xdnstair <= sroom->hx &&
		sroom->ly <= ydnstair && ydnstair <= sroom->hy);
}

static bool
has_upstairs(struct mkroom *sroom)
{
	return (sroom->lx <= xupstair && xupstair <= sroom->hx &&
		sroom->ly <= yupstair && yupstair <= sroom->hy);
}

static bool
isbig(struct mkroom *sroom)
{
	int area = (sroom->hx - sroom->lx) * (sroom->hy - sroom->ly);
	return (area > 20);
}

static int
dist2(int x0, int y0, int x1, int y1)
{
	return ((x0 - x1) * (x0 - x1) + (y0 - y1) * (y0 - y1));
}

static int
sq(int a)
{
	return (a * a);
}
#endif /* QUEST */