/*
 * Mostly wizard commands. Sometimes used by players.
 *
 * @(#)wizard.c	9.0	(rdk)	 7/17/84
 *
 * Super-Rogue
 * Copyright (C) 1984 Robert D. Kindelberger
 * All rights reserved.
 *
 * Based on "Rogue: Exploring the Dungeons of Doom"
 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
 * All rights reserved.
 *
 * See the file LICENSE.TXT for full copyright and licensing information.
 */

#include <stdlib.h>
#include <termios.h>
#include <ctype.h>
#include "rogue.h"
#include <pwd.h>
#include "rogue.ext"

extern struct termios terminal;

/*
 * whatis:
 *	What a certain object is
 */
whatis(what)
struct linked_list *what;
{
	reg struct object *obj;
	reg struct linked_list *item;
	reg int wh;

	if (what == NULL) {				/* we need to ask */
		if ((item = get_item("identify", 0)) == NULL)
			return;
	}
	else							/* no need to ask */
		item = what;
	obj = OBJPTR(item);
	setoflg(obj, ISKNOW);
	wh = obj->o_which;
	switch (obj->o_type) {
		case SCROLL:
			s_know[wh] = TRUE;
			if (s_guess[wh]) {
				free(s_guess[wh]);
				s_guess[wh] = NULL;
			}
	    when POTION:
			p_know[wh] = TRUE;
			if (p_guess[wh]) {
				free(p_guess[wh]);
				p_guess[wh] = NULL;
			}
		when STICK:
			ws_know[wh] = TRUE;
			if (ws_guess[wh]) {
				free(ws_guess[wh]);
			ws_guess[wh] = NULL;
			}
	    when RING:
			r_know[wh] = TRUE;
			if (r_guess[wh]) {
				free(r_guess[wh]);
				r_guess[wh] = NULL;
			}
	}
	if (what == NULL)
		msg(inv_name(obj, FALSE));
}


/*
 * create_obj:
 *	Create any object for wizard or scroll (almost)
 */
create_obj(fscr)
bool fscr;
{
	reg struct linked_list *item;
	reg struct object *obj;
	reg int wh, ch, otype;
	char newitem, newtype, msz, *oname;
	struct magic_info *mf;
	bool nogood = TRUE, inhw = FALSE;

	if (fscr)
		msg(" ");
	else if (wizard) {
		msg("Create what?%s: ", starlist);
		ch = readchar();
		mpos = 0;
		if (ch == ESCAPE)
			return;
		else if (ch != '*')
			nogood = FALSE;
	}
	if (nogood) {
		inhw = TRUE;
		wclear(hw);
		wprintw(hw,"Item\tKey\n\n");
		for (otype = 0; otype < NUMTHINGS; otype++) {
			if (otype != TYP_AMULET || wizard) {
				mf = &thnginfo[otype];
				wprintw(hw,"%s\t %c\n",things[otype].mi_name,mf->mf_show);
			}
		}
		if (wizard)
			waddstr(hw,"monster\t (A-z)");
		wprintw(hw,"\n\nWhat do you want to create? ");
		draw(hw);
		do {
			ch = readchar();
			if (ch == ESCAPE) {
				after = FALSE;
				restscr(cw);
				return;
			}
			switch (ch) {
				case RING:		case STICK:	case POTION:
				case SCROLL:	case ARMOR:	case WEAPON:
				case FOOD:		case AMULET:
					nogood = FALSE;
					break;
				default:
					if (isalpha(ch))
						nogood = FALSE;
			}
		} while (nogood);
	}
	if (isalpha(ch)) {
		if (inhw)
			restscr(cw);
		makemons(ch);		/* make monster & be done with it */
		return;
	}
	otype = getindex(ch);
	if (otype == -1 || (otype == AMULET && !wizard)) {
		if (inhw)
			restscr(cw);
		mpos = 0;
		msg("You can't create that !!");
		return;
	}
	newitem = ch;
	mf = &thnginfo[otype];
	oname = things[otype].mi_name;
	msz = mf->mf_max;
	nogood = TRUE;
	if (msz == 1) {		/* if only one type of item */
		ch = 'a';
		nogood = FALSE;
	}
	else if (!fscr && wizard) {
		if (!inhw) {
			msg("Which %s?%s: ", oname, starlist);
			ch = readchar();
			if (ch == ESCAPE)
				return;
			if (ch != '*')
				nogood = FALSE;
		}
	}
	if (nogood) {
		struct magic_item *wmi;
		int ii;

		mpos = 0;
		inhw = TRUE;
		switch(newitem) {
			case POTION:	wmi = &p_magic[0];
			when SCROLL:	wmi = &s_magic[0];
			when RING:		wmi = &r_magic[0];
			when STICK:		wmi = &ws_magic[0];
			when WEAPON:	wmi = &w_magic[0];
			otherwise:		wmi = &a_magic[0];
		}
		wclear(hw);
		for (ii = 0 ; ii < msz ; ii++) {
			mvwaddch(hw,ii % 13,ii > 12 ? COLS/2 : 0, ii + 'a');
			waddstr(hw,") ");
			waddstr(hw,wmi->mi_name);
			wmi++;
		}
		sprintf(prbuf,"Which %s? ", oname);
		mvwaddstr(hw,LINES - 1, 0, prbuf);
		draw(hw);
		do {
			ch = readchar();
			if (ch == ESCAPE) {
				restscr(cw);
				msg("");
				return;
			}
		} while (!isalpha(ch));
	}
	if (inhw)			/* restore screen if need be */
		restscr(cw);

	newtype = tolower(ch) - 'a';
	if (newtype < 0 || newtype >= msz) {	/* if an illegal value */
		mpos = 0;
		after = FALSE;
		if (inhw)
			restscr(cw);
		msg("There is no such %s", oname);
		return;
	}
	mpos = 0;
	item = new_thing(FALSE, newitem, newtype);
	obj = OBJPTR(item);
	wh = obj->o_type;
	if (wh == WEAPON || wh == ARMOR || wh == RING) {
		if (fscr)					/* users get +3 to -3 */
			ch = rnd(7) - 3;
		else {						/* wizard gets to choose */
			if (wh == RING)
				init_ring(obj, TRUE);
			else
				ch = getbless();
		}
		if (wh == WEAPON)
			obj->o_hplus = obj->o_dplus = ch;
		else if (wh == ARMOR)
			obj->o_ac = armors[obj->o_which].a_class - ch;
		if (ch < 0)
			setoflg(obj, ISCURSED);
		else
			resoflg(obj, ISCURSED);
	}
	/* Don't let scrolls of aquirement give multiple scrolls of 
	 * aquirement, or you will be able to scum for ANYTHING. */
	if (!wizard && wh == SCROLL && obj->o_which == S_MAKEIT)
		obj->o_count = 1;
	mpos = 0;
	if (fscr)
		whatis(item);			/* identify for aquirement scroll */
	wh = add_pack(item, FALSE);
	if (wh == FALSE)			/* won't fit in pack */
		discard(item);
}


/*
 * getbless:
 *	Get a blessing for a wizards object
 */
getbless()
{
	int bless;

	msg("Blessing: ");
	prbuf[0] = '\0';
	bless = get_str(prbuf, cw);
	if (bless == NORM)
		bless = atoi(prbuf);
	else
		bless = 0;
	return bless;
}

/*
 * makemons:
 *	Make a monster
 */
makemons(what)
int what;
{
	reg int x, y, oktomake = FALSE, appear = 1;
	struct coord mp;

	oktomake = FALSE;
	for (x = hero.x - 1 ; x <= hero.x + 1 ; x++) {
		for (y = hero.y - 1 ; y <= hero.y + 1 ; y++) {
			if (x != hero.x || y != hero.y) {
				if (step_ok(winat(y, x)) && rnd(++appear) == 0) {
					mp.x = x;
					mp.y = y;
					oktomake = TRUE;
					break;
				}
			}
		}
	}
	if (oktomake) {
		new_monster(midx(what), &mp, FALSE);
		look(FALSE);
	}
	return oktomake;
}

/*
 * telport:
 *	Bamf the thing someplace else
 */
teleport(spot, th)
struct coord spot;
struct thing *th;
{
	reg int rm, y, x;
	struct coord oldspot;
	struct room *rp;
	bool ishero;

	ishero = (th == &player);
	oldspot = th->t_pos;
	y = th->t_pos.y;
	x = th->t_pos.x;
	mvwaddch(cw, y, x, th->t_oldch); 
	if (!ishero)
		mvwaddch(mw, y, x, ' ');
	rp = roomin(&spot);
	if (spot.y < 0 || !step_ok(winat(spot.y, spot.x))) {
		rp = &rooms[rnd_room()];
		th->t_pos = *rnd_pos(rp);
	}
	else
		th->t_pos = spot;
	rm = rp - &rooms[0];
	th->t_room = rp;
	th->t_oldch = mvwinch(cw, th->t_pos.y, th->t_pos.x);
	if (ishero)
		light(&oldspot);
	th->t_nomove = 0;
	if (ishero) {
		light(&hero);
		mvwaddch(cw, hero.y, hero.x, PLAYER);
		/*
		 * turn off ISHELD in case teleportation was done
		 * while fighting a Fungi or Bone Devil.
		 */
		if (pl_on(ISHELD))
			unhold('F');
		count = 0;
		running = FALSE;
		flushinp();			/* flush typeahead */
		nochange = FALSE;
	}
	else
		mvwaddch(mw, th->t_pos.y, th->t_pos.x, th->t_type);
	return rm;
}

/*
 * passwd:
 *	See if user knows password
 */
passwd()
{
	reg char *sp, c;
	bool passok;
	char buf[LINLEN], *xcrypt();

	msg(wizstr);
	mpos = 0;
	sp = buf;
	while ((c = getchar()) != '\n' && c != '\r' && c != ESCAPE)
	if (c == terminal.c_cc[VKILL])
		sp = buf;
	else if (c == terminal.c_cc[VERASE] && sp > buf)
		sp--;
	else
		*sp++ = c;
	if (sp == buf)
		passok = FALSE;
	else {
		*sp = '\0';
		passok = (strcmp(PASSWD, xcrypt(buf, "mT")) == 0);
	}
	return passok;
}