view srogue/fight.c @ 162:600873555ec0

Don't swap signal handlers in md_shellescape(). md_shellescape() sets SIGINT and SIGQUIT to be ignored, storing the previous handlers, and restores them after the shell exits. But it mixed up the two handlers. Since the signals were usually handled by the same function, this fix doesn't have much effect, but anything that makes signal code less confusing is a good thing.
author John "Elwin" Edwards
date Mon, 08 Jun 2015 10:01:25 -0400
parents 2128c7dc8a40
children 94a0d9dd5ce1
line wrap: on
line source

/*
 * All the fighting gets done here
 *
 * @(#)fight.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 <ctype.h>
#include "rogue.h"
#include "rogue.ext"


/*
 * fight:
 *	The player attacks the monster.
 */
fight(mp, weap, thrown)
struct coord *mp;
struct object *weap;
bool thrown;
{

	reg struct thing *tp;
	reg struct stats *st;
	reg struct linked_list *item;
	bool did_hit = TRUE;

	if (pl_on(ISETHER))			/* cant fight when ethereal */
		return 0;

	if ((item = find_mons(mp->y, mp->x)) == NULL) {
		mvaddch(mp->y, mp->x, FLOOR);
		mvwaddch(mw, mp->y, mp->x, ' ');
		look(FALSE);
		msg("That monster must have been an illusion.");
		return 0;
	}
	tp = THINGPTR(item);
	st = &tp->t_stats;
	/*
	 * Since we are fighting, things are not quiet so
	 * no healing takes place.
	 */
	quiet = 0;
	isfight = TRUE;
	runto(mp, &hero);
	/*
	 * Let him know it was really a mimic (if it was one).
	 */
	if(tp->t_type == 'M' && tp->t_disguise != 'M' && pl_off(ISBLIND)) {
		msg("Wait! That's a mimic!");
		tp->t_disguise = 'M';
		did_hit = thrown;
	}
	if (did_hit) {
		reg char *mname;

		did_hit = FALSE;
		if (pl_on(ISBLIND))
			mname = "it";
		else
			mname = monsters[tp->t_indx].m_name;
		/*
		 * If the hero can see the invisibles, then
		 * make it easier to hit.
		 */
		if (pl_on(CANSEE) && on(*tp, ISINVIS) && off(*tp, WASHIT)) {
			tp->t_flags |= WASHIT;
			st->s_arm += 3;
		}
		if (roll_em(him, st, weap, thrown)) {
			did_hit = TRUE;
			if (thrown)
				thunk(weap, mname);
			else
				hit(NULL);
			if (pl_on(CANHUH)) {
				msg("Your hands stop glowing red");
				msg("The %s appears confused.", mname);
				tp->t_flags |= ISHUH;
				player.t_flags &= ~CANHUH;
				/*
				 * If our hero was stuck by a bone devil,
				 * release him now because the devil is
				 * confused.
				 */
				if (pl_on(ISHELD))
					unhold(tp->t_type);
			}
			if (st->s_hpt <= 0)
				killed(item, TRUE);
			else if (monhurt(tp) && off(*tp, ISWOUND)) {
				if (levtype != MAZELEV && tp->t_room != NULL &&
				  !rf_on(tp->t_room, ISTREAS)) {
					tp->t_flags |= ISWOUND;
					msg("You wounded %s.",prname(mname,FALSE));
					unhold(tp->t_type);
				}
			}
		}
		else {
			if (thrown)
				bounce(weap, mname);
			else
				miss(NULL);
		}
	}
	count = 0;
	return did_hit;
}


/*
 * attack:
 *	The monster attacks the player
 */
attack(mp)
struct thing *mp;
{
	reg char *mname;

	if (pl_on(ISETHER))		/* ethereal players cant be hit */
		return(0);
	if (mp->t_flags & ISPARA)	/* paralyzed monsters */
		return(0);
	running = FALSE;
	quiet = 0;
	isfight = TRUE;
	if (mp->t_type == 'M' && pl_off(ISBLIND))
		mp->t_disguise = 'M';
	if (pl_on(ISBLIND))
		mname = "it";
	else
		mname = monsters[mp->t_indx].m_name;
	if (roll_em(&mp->t_stats, him, NULL, FALSE)) {
		if (pl_on(ISINVINC)) {
			msg("%s does not harm you.",prname(mname,TRUE));
		}
		else {
			nochange = FALSE;
			if (mp->t_type != 'E')
				hit(mname);
			if (him->s_hpt <= 0)
				death(mp->t_indx);
			if (off(*mp, ISCANC))
				switch (mp->t_type) {
				case 'R':
					if (hurt_armor(cur_armor)) {
						msg("Your armor weakens.");
						cur_armor->o_ac++;
					}
				when 'E':
				/*
				 * The gaze of the floating eye hypnotizes you
				 */
					if (pl_off(ISBLIND) && player.t_nocmd <= 0) {
						player.t_nocmd = rnd(16) + 25;
						msg("You are transfixed.");
					}
				when 'Q':
					if (!save(VS_POISON) && !iswearing(R_SUSAB)) {
						if (him->s_ef.a_dex > MINABIL) {
							chg_abil(DEX, -1, TRUE);
							msg("You feel less agile.");
						}
					}
				when 'A':
					if (!save(VS_POISON) && herostr() > MINABIL) {
						if (!iswearing(R_SUSTSTR) && !iswearing(R_SUSAB)) {
							if (levcount > 0) {
								chg_abil(STR, -1, TRUE);
								msg("A sting has weakened you");
							}
						}
						else
							msg("Sting has no effect.");
					}
				when 'W':
					if (rnd(100) < 15 && !iswearing(R_SUSAB)) {
						if (him->s_exp <= 0)
							death(mp->t_indx);
						msg("You suddenly feel weaker.");
						if (--him->s_lvl == 0) {
							him->s_exp = 0;
							him->s_lvl = 1;
						}
						else
							him->s_exp = e_levels[him->s_lvl - 1] + 1;
						chg_hpt(-roll(1,10),TRUE,mp->t_indx);
					}
				when 'F':
					player.t_flags |= ISHELD;
					sprintf(monsters[midx('F')].m_stats.s_dmg,"%dd1",++fung_hit);
				when 'L': {
					long lastpurse;
					struct linked_list *lep;

					lastpurse = purse;
					purse -= GOLDCALC;
					if (!save(VS_MAGIC))
						purse -= GOLDCALC + GOLDCALC + GOLDCALC + GOLDCALC;
					if (purse < 0)
						purse = 0;
					if (purse != lastpurse)
						msg("Your purse feels lighter.");
					lep = find_mons(mp->t_pos.y,mp->t_pos.x);
					if (lep != NULL)
					{
						remove_monster(&mp->t_pos, lep);
						mp = NULL;
					}
				}
				when 'N': {
					struct linked_list *steal, *list;
					struct object *sobj;
					int stworth = 0, wo;

					/*
					 * Nymph's steal a magic item, look through the pack
					 * and pick out one we like, namely the object worth
					 * the most bucks.
					 */
					steal = NULL;
					for (list = pack; list != NULL; list = next(list)) {
						wo = get_worth(OBJPTR(list));
						if (wo > stworth) {
							stworth = wo;
							steal = list;
						}
					}
					if (steal != NULL) {
						sobj = OBJPTR(steal);
						if (o_off(sobj, ISPROT)) {
							struct linked_list *nym;

							nym = find_mons(mp->t_pos.y, mp->t_pos.x);
							if (nym != NULL)
							{
								remove_monster(&mp->t_pos, nym);
								mp = NULL;
							}
							msg("She stole %s!", inv_name(sobj, TRUE));
							detach(pack, steal);
							discard(steal);
							cur_null(sobj);
							updpack();
						}
					}
				}
				when 'c':
					if (!save(VS_PETRIFICATION)) {
						msg("Your body begins to solidify.");
						msg("You are turned to stone !!! --More--");
						wait_for(cw, ' ');
						death(mp->t_indx);
					}
				when 'd':
					if (rnd(100) < 50 && !(mp->t_flags & ISHUH))
						player.t_flags |= ISHELD;
					if (!save(VS_POISON)) {
						if (iswearing(R_SUSAB) || iswearing(R_SUSTSTR))
							msg("Sting has no effect.");
						else {
							int fewer, ostr;

							fewer = roll(1,4);
							ostr = herostr();
							chg_abil(STR,-fewer,TRUE);
							if (herostr() < ostr) {
								fewer = ostr - herostr();
								fuse(rchg_str, fewer - 1, 10);
							}
							msg("You feel weaker now.");
						}
					}
				when 'g':
					if (!save(VS_BREATH) && !iswearing(R_BREATH)) {
						msg("You feel singed.");
						chg_hpt(-roll(1,8),FALSE,mp->t_indx);
					}
				when 'h':
					if (!save(VS_BREATH) && !iswearing(R_BREATH)) {
						msg("You are seared.");
						chg_hpt(-roll(1,4),FALSE,mp->t_indx);
					}
				when 'p':
					if (!save(VS_POISON) && herostr() > MINABIL) {
						if (!iswearing(R_SUSTSTR) && !iswearing(R_SUSAB)) {
							msg("You are gnawed.");
							chg_abil(STR,-1,TRUE);
						}
					}
				when 'u':
					if (!save(VS_POISON) && herostr() > MINABIL) {
						if (!iswearing(R_SUSTSTR) && !iswearing(R_SUSAB)) {
							msg("You are bitten.");
							chg_abil(STR, -1, TRUE);
							fuse(rchg_str, 1, roll(5,10));
				 		}
					}
				when 'w':
					if (!save(VS_POISON) && !iswearing(R_SUSAB)) {
						msg("You feel devitalized.");
						chg_hpt(-1,TRUE,mp->t_indx);
					}
				when 'i':
					if (!save(VS_PARALYZATION) && !iswearing(R_SUSAB)) {
						if (pl_on(ISSLOW))
							lengthen(notslow,roll(3,10));
						else {
							msg("You feel impaired.");
							player.t_flags |= ISSLOW;
							fuse(notslow,TRUE,roll(5,10));
						}
					}
				otherwise:
					break;
			}
		}
	}
	else if (mp->t_type != 'E') {
		if (mp->t_type == 'F') {
			him->s_hpt -= fung_hit;
			if (him->s_hpt <= 0)
				death(mp->t_indx);
		}
		miss(mname);
	}
	flushinp();					/* flush type ahead */
	count = 0;

	if (mp == NULL)
		return(-1);
	else
		return(0);
}


/*
 * swing:
 *	Returns true if the swing hits
 */
swing(at_lvl, op_arm, wplus)
int at_lvl, op_arm, wplus;
{
	reg int res = rnd(20)+1;
	reg int need = (21 - at_lvl) - op_arm;

	return (res + wplus >= need);
}


/*
 * check_level:
 *	Check to see if the guy has gone up a level.
 */
check_level()
{
	reg int lev, add, dif;

	for (lev = 0; e_levels[lev] != 0; lev++)
	if (e_levels[lev] > him->s_exp)
		break;
	lev += 1;
	if (lev > him->s_lvl) {
		dif = lev - him->s_lvl;
		add = roll(dif, 10) + (dif * getpcon(him));
		him->s_maxhp += add;
		if ((him->s_hpt += add) > him->s_maxhp)
			him->s_hpt = him->s_maxhp;
		msg("Welcome to level %d", lev);
	}
	him->s_lvl = lev;
}


/*
 * roll_em:
 *	Roll several attacks
 */
roll_em(att, def, weap, hurl)
struct stats *att, *def;
struct object *weap;
bool hurl;
{
	reg char *cp;
	reg int ndice, nsides, def_arm, prop_hplus, prop_dplus;
	reg bool did_hit = FALSE;
	char *mindex();

	prop_hplus = prop_dplus = 0;
	if (weap == NULL) {
		cp = att->s_dmg;
	}
	else if (hurl) {
		if (o_on(weap,ISMISL) && cur_weapon != NULL &&
		  cur_weapon->o_which == weap->o_launch) {
			cp = weap->o_hurldmg;
			prop_hplus = cur_weapon->o_hplus;
			prop_dplus = cur_weapon->o_dplus;
		}
		else
			cp = (o_on(weap,ISMISL) ? weap->o_damage : weap->o_hurldmg);
	}
	else {
		cp = weap->o_damage;
		/*
		 * Drain a staff of striking
		 */
		if (weap->o_type == STICK && weap->o_which == WS_HIT
		  && weap->o_charges == 0) {
			strcpy(weap->o_damage, "0d0");
			weap->o_hplus = weap->o_dplus = 0;
		}
    }
	while(1) {
		int damage;
		int hplus = prop_hplus + (weap == NULL ? 0 : weap->o_hplus);
		int dplus = prop_dplus + (weap == NULL ? 0 : weap->o_dplus);

		if (att == him && weap == cur_weapon) {
			if (isring(LEFT, R_ADDDAM))
				dplus += cur_ring[LEFT]->o_ac;
			else if (isring(LEFT, R_ADDHIT))
				hplus += cur_ring[LEFT]->o_ac;
			if (isring(RIGHT, R_ADDDAM))
				dplus += cur_ring[RIGHT]->o_ac;
			else if (isring(RIGHT, R_ADDHIT))
				hplus += cur_ring[RIGHT]->o_ac;
		}
		ndice = atoi(cp);
		if ((cp = mindex(cp, 'd')) == NULL)
			break;
		nsides = atoi(++cp);

		if (def == him) {			/* defender is hero */
			if (cur_armor != NULL)
				def_arm = cur_armor->o_ac;
			else
				def_arm = def->s_arm;
			if (isring(LEFT, R_PROTECT))
				def_arm -= cur_ring[LEFT]->o_ac;
			if (isring(RIGHT, R_PROTECT))
				def_arm -= cur_ring[RIGHT]->o_ac;
		}
		else						/* defender is monster */
			def_arm = def->s_arm;
		if (hurl)
			hplus += getpdex(att,TRUE);
		if (swing(att->s_lvl, def_arm + getpdex(def, FALSE),
		  hplus + str_plus(att))) {
			reg int proll;

			proll = roll(ndice, nsides);
			damage = dplus + proll + add_dam(att);
			if (pl_off(ISINVINC) || def != him)
				def->s_hpt -= max(0, damage);
			did_hit = TRUE;
		}
		if ((cp = mindex(cp, '/')) == NULL)
			break;
		cp++;
	}
	return did_hit;
}


/*
 * mindex:
 *	Look for char 'c' in string pointed to by 'cp'
 */
char *
mindex(cp, c)
char *cp, c;
{
	reg int i;

	for (i = 0; i < 3; i++)
		if (*cp != c)  cp++;
	if (*cp == c)
		return cp;
	else
		return NULL;
}


/*
 * prname:
 *	The print name of a combatant
 */
char *
prname(who, upper)
char *who;
bool upper;
{
static char tbuf[LINLEN];

	*tbuf = '\0';
	if (who == 0)
		strcpy(tbuf, "you"); 
	else if (pl_on(ISBLIND))
		strcpy(tbuf, "it");
	else {
		strcpy(tbuf, "the ");
		strcat(tbuf, who);
	}
	if (upper)
		*tbuf = toupper(*tbuf);
	return tbuf;
}

/*
 * hit:
 *	Print a message to indicate a succesful hit
 */
hit(er)
char *er;
{
	msg("%s hit.",prname(er, TRUE));
}


/*
 * miss:
 *	Print a message to indicate a poor swing
 */
miss(er)
char *er;
{
	msg("%s miss%s.",prname(er, TRUE),(er == 0 ? "":"es"));
}


/*
 * save_throw:
 *	See if a creature saves against something
 */
save_throw(which, tp)
int which;
struct thing *tp;
{
	reg int need;
	reg struct stats *st;

	st = &tp->t_stats;
	need = 14 + which - (st->s_lvl / 2) - getpwis(st);
	return (roll(1, 20) >= need);
}


/*
 * save:
 *	See if he saves against various nasty things
 */
save(which)
int which;
{
	return save_throw(which, &player);
}

/*
 * raise_level:
 *	The guy just magically went up a level.
 */
raise_level()
{
	him->s_exp = e_levels[him->s_lvl-1] + 1L;
	check_level();
}


/*
 * thunk:
 *	A missile hits a monster
 */
thunk(weap, mname)
struct object *weap;
char *mname;
{
	if (weap->o_type == WEAPON)
		msg("The %s hits the %s.",w_magic[weap->o_which].mi_name,mname);
	else
		msg("You hit the %s.", mname);
}


/*
 * bounce:
 *	A missile misses a monster
 */
bounce(weap, mname)
struct object *weap;
char *mname;
{
	if (weap->o_type == WEAPON)
		msg("The %s misses the %s.", w_magic[weap->o_which].mi_name,mname);
	else
		msg("You missed the %s.", mname);
}


/*
 * remove:
 *	Remove a monster from the screen
 */
remove_monster(mp, item)
struct coord *mp;
struct linked_list *item;
{
	reg char what;

	mvwaddch(mw, mp->y, mp->x, ' ');
	if (pl_on(ISBLIND))
		what = ' ';							/* if blind, then a blank */
	else
		what = (THINGPTR(item))->t_oldch;	/* normal char */
	mvwaddch(cw, mp->y, mp->x, what);
	detach(mlist, item);
	discard(item);
}


/*
 * is_magic:
 *	Returns true if an object radiates magic
 */
is_magic(obj)
struct object *obj;
{
	switch (obj->o_type) {
		case ARMOR:
			return obj->o_ac != armors[obj->o_which].a_class;
		case WEAPON:
			return obj->o_hplus != 0 || obj->o_dplus != 0;
		case POTION:
		case SCROLL:
		case STICK:
		case RING:
		case AMULET:
			return TRUE;
	}
	return FALSE;
}


/*
 * killed:
 *	Called to put a monster to death
 */
killed(item, pr)
struct linked_list *item;
bool pr;
{
	reg struct thing *tp;
	reg struct object *obj;
	struct linked_list *pitem, *nexti, *itspack;
	struct coord here;
	
	nochange = FALSE;
	tp = THINGPTR(item);
	here = tp->t_pos;
	if (pr) {
		addmsg("Defeated ");
		if (pl_on(ISBLIND))
			msg("it.");
		else
			msg("%s.", monsters[tp->t_indx].m_name);
	}
	him->s_exp += tp->t_stats.s_exp;
	isfight = FALSE;
	check_level();
	unhold(tp->t_type);					/* free player if held */
	if (tp->t_type == 'L') {
		reg struct room *rp;

		rp = roomin(&here);
		if (rp != NULL) {
			if (rp->r_goldval!=0 || fallpos(&here, &rp->r_gold, FALSE)) {
				rp->r_goldval += GOLDCALC;
				if (!save_throw(VS_MAGIC,tp))
					rp->r_goldval += GOLDCALC + GOLDCALC + GOLDCALC
								   + GOLDCALC + GOLDCALC;
				mvaddch(rp->r_gold.y, rp->r_gold.x, GOLD);
				if (!rf_on(rp,ISDARK)) {
					light(&hero);
					mvwaddch(cw, hero.y, hero.x, PLAYER);
				}
			}
		}
	}
	pitem = tp->t_pack;
	itspack = tp->t_pack;
	remove_monster(&here, item);
	while (pitem != NULL) {
		nexti = next(pitem);
		obj = OBJPTR(pitem);
		obj->o_pos = here;
		detach(itspack, pitem);
		fall(pitem, FALSE);
		pitem = nexti;
	}
}