Example #1
0
int
diag_ok(coord *sp, coord *ep)
{
    if (ep->x == sp->x || ep->y == sp->y)
	return TRUE;
    return (step_ok(CMVINCH(ep->y, sp->x)) && step_ok(CMVINCH(sp->y, ep->x)));
}
/*
 * diag_ok:
 *	Check to see if the move is legal if it is diagonal
 */
int
diag_ok(coord *sp, coord *ep, struct thing *flgptr)
{
    if (ep->x == sp->x || ep->y == sp->y)
	return TRUE;
    return (step_ok(ep->y, sp->x, MONSTOK, flgptr) &&
	    step_ok(sp->y, ep->x, MONSTOK, flgptr));
}
Example #3
0
/*
 * diag_ok:
 *	Check to see if the move is legal if it is diagonal
 */
int
diag_ok(const coord *sp, const coord *ep)
{
    if (ep->x < 0 || ep->x >= NUMCOLS || ep->y <= 0 || ep->y >= NUMLINES - 1)
	return FALSE;
    if (ep->x == sp->x || ep->y == sp->y)
	return TRUE;
    return (step_ok(chat(ep->y, sp->x)) && step_ok(chat(sp->y, ep->x)));
}
Example #4
0
bool plop_monster(int r, int c, Coord *cp)
{
    int y, x;
    int appear = 0;
    byte ch;

    for (y = r - 1; y <= r + 1; y++)
    {
        for (x = c - 1; x <= c + 1; x++)
        {
            Coord pos = { x, y };
            //Don't put a monster on top of the player.
            if (pos == game->hero().position() || offmap({ x,y }))
                continue;
            //Or anything else nasty
            if (step_ok(ch = game->level().get_tile_or_monster(pos)))//todo:bug: on mimic?
            {
                if (ch == SCROLL && is_scare_monster_scroll(find_obj(pos, false)))
                    continue;
                if (rnd(++appear) == 0) {
                    *cp = pos;
                }
            }
        }
    }

    return appear != 0;
}
/*
 * unphase:
 *	Player can no longer walk through walls
 */
void
unphase(void)
{
    turn_off(player, CANINWALL);
    msg("Your dizzy feeling leaves you.");
    if (!step_ok(hero.y, hero.x, NOMONST, &player)) 
	death(D_PETRIFY);
}
Example #6
0
Monster* get_monster_in_direction(Coord dir, bool check_distant)
{
    Coord pos = game->hero().position() + dir;
    bool throws_affect_mimics(game->options.throws_affect_mimics());
    while (check_distant && step_ok(game->level().get_tile_or_monster(pos, throws_affect_mimics))) {
        pos = pos + dir;
    }
    return game->level().monster_at(pos);
}
fuse
unphase(fuse_arg *arg)
{
    NOOP(arg);

    turn_off(player, CANINWALL);

    msg("Your dizzy feeling leaves you.");

    if (!step_ok(hero.y, hero.x, NOMONST, &player))
        death(D_PETRIFY);
}
Example #8
0
/*
 * see_monst:
 *	Return TRUE if the hero can see the monster
 */
int
see_monst(const THING *mp)
{
    int y, x;

    if (on(player, ISBLIND))
	return FALSE;
    if (on(*mp, ISINVIS) && !on(player, CANSEE))
	return FALSE;
    y = mp->t_pos.y;
    x = mp->t_pos.x;
    if (dist(y, x, hero.y, hero.x) < LAMPDIST)
    {
	if (y != hero.y && x != hero.x &&
	    !step_ok(chat(y, hero.x)) && !step_ok(chat(hero.y, x)))
		return FALSE;
	return TRUE;
    }
    if (mp->t_room != proom)
	return FALSE;
    return (!(mp->t_room->r_flags & ISDARK));
}
Example #9
0
/*
 * cansee:
 *	Returns true if the hero can see a certain coordinate.
 */
int
cansee(int y, int x)
{
    struct room *rer;
    coord tp;

    if (on(player, ISBLIND))
	return FALSE;
    if (dist(y, x, hero.y, hero.x) < LAMPDIST)
    {
	if (flat(y, x) & F_PASS)
	    if (y != hero.y && x != hero.x &&
		!step_ok(chat(y, hero.x)) && !step_ok(chat(hero.y, x)))
		    return FALSE;
	return TRUE;
    }
    /*
     * We can only see if the hero in the same room as
     * the coordinate and the room is lit or if it is close.
     */
    tp.y = y;
    tp.x = x;
    return ((rer = roomin(&tp)) == proom && !(rer->r_flags & ISDARK));
}
void
do_motion(THING *obj, int ydelta, int xdelta)
{
    int ch;

    /*
     * Come fly with us ...
     */
    obj->o_pos = hero;
    for (;;)
    {
	/*
	 * Erase the old one
	 */
	if (!ce(obj->o_pos, hero) && cansee(unc(obj->o_pos)) && !terse)
	{
	    ch = chat(obj->o_pos.y, obj->o_pos.x);
	    if (ch == FLOOR && !show_floor())
		ch = ' ';
	    mvaddch(obj->o_pos.y, obj->o_pos.x, ch);
	}
	/*
	 * Get the new position
	 */
	obj->o_pos.y += ydelta;
	obj->o_pos.x += xdelta;
	if (step_ok(ch = winat(obj->o_pos.y, obj->o_pos.x)) && ch != DOOR)
	{
	    /*
	     * It hasn't hit anything yet, so display it
	     * If it alright.
	     */
	    if (cansee(unc(obj->o_pos)) && !terse)
	    {
		mvaddch(obj->o_pos.y, obj->o_pos.x, obj->o_type);
		refresh();
	    }
	    continue;
	}
	break;
    }
}
Example #11
0
/*
 * do the actual motion on the screen done by an object traveling
 * across the room
 */
void
do_motion(struct object *obj, int ydelta, int xdelta)
{
    /*
     * Come fly with us ...
     */
    obj->o_pos = hero;
    for (;;)
    {
	int ch;

	/*
	 * Erase the old one
	 */
	if (!ce(obj->o_pos, hero) && cansee(unc(obj->o_pos)) &&
	    CMVWINCH(cw, obj->o_pos.y, obj->o_pos.x) != ' ')
		    mvwaddrawch(cw, obj->o_pos.y, obj->o_pos.x,
			    show(obj->o_pos.y, obj->o_pos.x));
	/*
	 * Get the new position
	 */
	obj->o_pos.y += ydelta;
	obj->o_pos.x += xdelta;
	if (step_ok(ch = winat(obj->o_pos.y, obj->o_pos.x)) && ch != DOOR)
	{
	    /*
	     * It hasn't hit anything yet, so display it
	     * If it alright.
	     */
	    if (cansee(unc(obj->o_pos)) &&
		CMVWINCH(cw, obj->o_pos.y, obj->o_pos.x) != ' ')
	    {
		mvwaddrawch(cw, obj->o_pos.y, obj->o_pos.x, obj->o_type);
		draw(cw);
	    }
	    continue;
	}
	break;
    }
}
Example #12
0
/*
 * chase:
 *	Find the spot for the chaser(er) to move closer to the
 *	chasee(ee).  Returns TRUE if we want to keep on chasing later
 *	FALSE if we reach the goal.
 */
int
chase(THING *tp, const coord *ee)
{
    THING *obj;
    int x, y;
    int curdist, thisdist;
    const coord *er = &tp->t_pos;
    int ch;
    int plcnt = 1;
    coord tryp;

    /*
     * If the thing is confused, let it move randomly. Invisible
     * Stalkers are slightly confused all of the time, and bats are
     * quite confused all the time
     */
    if ((on(*tp, ISHUH) && rnd(5) != 0) || (tp->t_type == 'P' && rnd(5) == 0)
	|| (tp->t_type == 'B' && rnd(2) == 0))
    {
	/*
	 * get a valid random move
	 */
	ch_ret = rndmove(tp);
	curdist = dist_cp(&ch_ret, ee);
	/*
	 * Small chance that it will become un-confused 
	 */
	if (rnd(20) == 0)
	    tp->t_flags &= ~ISHUH;
    }
    /*
     * Otherwise, find the empty spot next to the chaser that is
     * closest to the chasee.
     */
    else
    {
	int ey, ex;
	/*
	 * This will eventually hold where we move to get closer
	 * If we can't find an empty spot, we stay where we are.
	 */
	curdist = dist_cp(er, ee);
	ch_ret = *er;

	ey = er->y + 1;
	if (ey >= NUMLINES - 1)
	    ey = NUMLINES - 2;
	ex = er->x + 1;
	if (ex >= NUMCOLS)
	    ex = NUMCOLS - 1;

	for (x = er->x - 1; x <= ex; x++)
	{
	    if (x < 0)
		continue;
	    tryp.x = x;
	    for (y = er->y - 1; y <= ey; y++)
	    {
		tryp.y = y;
		if (!diag_ok(er, &tryp))
		    continue;
		ch = winat(y, x);
		if (step_ok(ch))
		{
		    /*
		     * If it is a scroll, it might be a scare monster scroll
		     * so we need to look it up to see what type it is.
		     */
		    if (ch == SCROLL)
		    {
			for (obj = lvl_obj; obj != NULL; obj = next(obj))
			{
			    if (y == obj->o_pos.y && x == obj->o_pos.x)
				break;
			}
			if (obj != NULL && obj->o_which == S_SCARE)
			    continue;
		    }
		    /*
		     * It can also be a Xeroc, which we shouldn't step on
		     */
		    if ((obj = moat(y, x)) != NULL && obj->t_type == 'X')
			continue;
		    /*
		     * If we didn't find any scrolls at this place or it
		     * wasn't a scare scroll, then this place counts
		     */
		    thisdist = dist(y, x, ee->y, ee->x);
		    if (thisdist < curdist)
		    {
			plcnt = 1;
			ch_ret = tryp;
			curdist = thisdist;
		    }
		    else if (thisdist == curdist && rnd(++plcnt) == 0)
		    {
			ch_ret = tryp;
			curdist = thisdist;
		    }
		}
	    }
	}
    }
    return (curdist != 0 && !ce(ch_ret, hero));
}
int
can_blink(struct thing *tp)
{
    int   y, x, index = 9;
    coord   tryp;       /* To hold the coordinates for use in diag_ok */
    int    spots[9], found_one = FALSE;

    /*
     * First, can the monster even blink?  And if so, there is only a 30%
     * chance that it will do so.  And it won't blink if it is running.
     */

    if (off(*tp, CANBLINK) || (on(*tp, ISHELD)) ||
        on(*tp, ISFLEE) ||
        (on(*tp, ISSLOW) && off(*tp, ISHASTE) && !(tp->t_turn)) ||
        (rnd(10) < 9))
        return (FALSE);

    /* Initialize the spots as illegal */

    do
    {
        spots[--index] = FALSE;
    }
    while (index > 0);

    /* Find a suitable spot next to the player */

    for (y = hero.y - 1; y < hero.y + 2; y++)
        for (x = hero.x - 1; x < hero.x + 2; x++, index++)
        {
            /*
             * Make sure x coordinate is in range and that we are
             * not at the player's position
             */

            if (x < 0 || x >= COLS || index == 4)
                continue;

            /* Is it OK to move there? */

            if (!step_ok(y, x, NOMONST, tp))
                spots[index] = FALSE;
           else
           {

                /*
                 * OK, we can go here.  But don't go there if
                 * monster can't get at player from there
                 */

                tryp.y = y;
                tryp.x = x;
                if (diag_ok(&tryp, &hero, tp))
                {
                    spots[index] = TRUE;
                    found_one = TRUE;
                }
            }
        }

    /* If we found one, go to it */

    if (found_one)
    {
        /* Find a legal spot */

        while (spots[index = rnd(9)] == FALSE)
            continue;

        /* Get the coordinates */

        y = hero.y + (index / 3) - 1;
        x = hero.x + (index % 3) - 1;

        /* Move the monster from the old space */

        mvwaddch(cw, tp->t_pos.y, tp->t_pos.x, tp->t_oldch);

        /* Move it to the new space */

        tp->t_oldch = CCHAR( mvwinch(cw, y, x) );

        if (cansee(y, x) &&
            off(*tp, ISINWALL) &&
            ((off(*tp, ISINVIS) &&
              (off(*tp, ISSHADOW) || rnd(100) < 10)) || on(player, CANSEE)) &&
            off(*tp, CANSURPRISE))
            mvwaddch(cw, y, x, tp->t_type);

        mvwaddch(mw, tp->t_pos.y,tp->t_pos.x,' '); /*Clear old position */
        mvwaddch(mw, y, x, tp->t_type);
        tp->t_pos.y = y;
        tp->t_pos.x = x;
    }

    return (found_one);
}
Example #14
0
int
chase(struct thing *tp, coord *ee)
{
    int x, y;
    int dist, thisdist;
    struct linked_list *item;
    struct object *obj;
    coord *er = &tp->t_pos;
    int ch;

    /*
     * If the thing is confused, let it move randomly. Invisible
     * Stalkers are slightly confused all of the time, and bats are
     * quite confused all the time
     */
    if ((on(*tp, ISHUH) && rnd(10) < 8) || (tp->t_type == 'I' && rnd(100) < 20)
	|| (tp->t_type == 'B' && rnd(100) < 50))
    {
	/*
	 * get a valid random move
	 */
	ch_ret = *rndmove(tp);
	dist = DISTANCE(ch_ret.y, ch_ret.x, ee->y, ee->x);
	/*
	 * Small chance that it will become un-confused 
	 */
	if (rnd(1000) < 50)
	    tp->t_flags &= ~ISHUH;
    }
    /*
     * Otherwise, find the empty spot next to the chaser that is
     * closest to the chasee.
     */
    else
    {
	int ey, ex;
	/*
	 * This will eventually hold where we move to get closer
	 * If we can't find an empty spot, we stay where we are.
	 */
	dist = DISTANCE(er->y, er->x, ee->y, ee->x);
	ch_ret = *er;

	ey = er->y + 1;
	ex = er->x + 1;
	for (x = er->x - 1; x <= ex; x++)
	    for (y = er->y - 1; y <= ey; y++)
	    {
		coord tryp;

		tryp.x = x;
		tryp.y = y;
		if (!diag_ok(er, &tryp))
		    continue;
		ch = winat(y, x);
		if (step_ok(ch))
		{
		    /*
		     * If it is a scroll, it might be a scare monster scroll
		     * so we need to look it up to see what type it is.
		     */
		    if (ch == SCROLL)
		    {
			for (item = lvl_obj; item != NULL; item = next(item))
			{
			    obj = (struct object *) ldata(item);
			    if (y == obj->o_pos.y && x == obj->o_pos.x)
				break;
			}
			if (item != NULL && obj->o_which == S_SCARE)
			    continue;
		    }
		    /*
		     * If we didn't find any scrolls at this place or it
		     * wasn't a scare scroll, then this place counts
		     */
		    thisdist = DISTANCE(y, x, ee->y, ee->x);
		    if (thisdist < dist)
		    {
			ch_ret = tryp;
			dist = thisdist;
		    }
		}
	    }
    }
    return (dist != 0);
}
/*
 * chase:
 *	Find the spot for the chaser(er) to move closer to the
 *	chasee(ee).  Returns TRUE if we want to keep on chasing later
 *	FALSE if we reach the goal.
 */
int
chase(struct thing *tp, coord *ee, int flee, int *mdead)
{
    register int x, y;
    register int dist, thisdist, monst_dist = MAXINT;
    register struct linked_list *weapon;
    register coord *er = &tp->t_pos, *shoot_dir;
    register int ch, mch;
    register int next_player = FALSE;
    int deadflg;

	if (mdead != NULL)
		*mdead = 0;

	shoot_dir = can_shoot(er, ee);
    weapon = get_hurl(tp);

    /*
     * If the thing is confused, let it move randomly. Invisible
     * Stalkers are slightly confused all of the time.
     */
    if ((on(*tp, ISHUH) && rnd(10) < 8) ||
	((on(*tp, ISINVIS) || on(*tp, ISSHADOW)) && rnd(100) < 20) ||
	(on(player, ISINVIS) && off(*tp, CANSEE))) { /* Player is invisible */
	/*
	 * get a valid random move
	 */
	ch_ret = *rndmove(tp);
	dist = DISTANCE(ch_ret.y, ch_ret.x, ee->y, ee->x);

    if (on(*tp, ISHUH) && rnd(20) == 0)  /* monster might lose confusion */
        turn_off(*tp, ISHUH);

	/*
	 * check to see if random move takes creature away from player
	 * if it does then turn off ISHELD
	 */
	if (dist > 1 && on(*tp, DIDHOLD)) {
	    turn_off(*tp, DIDHOLD);
	    turn_on(*tp, CANHOLD);
	    if (--hold_count <= 0)
	    {
	        hold_count = 0;
	        turn_off(player, ISHELD);
	    }
	}
    }

    /* If we can breathe, we may do so */
    else if (on(*tp, CANBREATHE) && (shoot_dir) &&
	     (rnd(100) < 67) &&
		 (off(player, ISDISGUISE) || (rnd(tp->t_stats.s_lvl) > 6)) &&
	     (DISTANCE(er->y, er->x, ee->y, ee->x) < BOLT_LENGTH*BOLT_LENGTH)) {
		register int chance;
		register char *breath;

		/* Will it breathe at random */
		if (on(*tp, CANBRANDOM)) {
		    if (rnd(level/20) == 0 && tp->t_index != NUMMONST+1)
			turn_off(*tp, CANBRANDOM);

		    /* Select type of breath */
		    chance = rnd(100);
		    if (chance < 11) breath = "acid";
		    else if (chance < 22) breath = "flame";
		    else if (chance < 33) breath = "lightning bolt";
		    else if (chance < 44) breath = "chlorine gas";
		    else if (chance < 55) breath = "ice";
		    else if (chance < 66) breath = "nerve gas";
		    else if (chance < 77) breath = "sleeping gas";
		    else if (chance < 88) breath = "slow gas";
		    else breath = "fear gas";
		}

		/* Or can it breathe acid? */
		else if (on(*tp, CANBACID)) {
		    if (rnd(level/20) == 0)
			turn_off(*tp, CANBACID);
		    breath = "acid";
		}

		/* Or can it breathe fire */
		else if (on(*tp, CANBFIRE)) {
		    if (rnd(level/20) == 0)
			turn_off(*tp, CANBFIRE);
		    breath = "flame";
		}

		/* Or can it breathe electricity? */
		else if (on(*tp, CANBBOLT)) {
		    if (rnd(level/20) == 0)
			turn_off(*tp, CANBBOLT);
		    breath = "lightning bolt";
		}

		/* Or can it breathe gas? */
		else if (on(*tp, CANBGAS)) {
		    if (rnd(level/20) == 0)
			turn_off(*tp, CANBGAS);
		    breath = "chlorine gas";
		}

		/* Or can it breathe ice? */
		else if (on(*tp, CANBICE)) {
		    if (rnd(level/20) == 0)
			turn_off(*tp, CANBICE);
		    breath = "ice";
		}

		else if (on(*tp, CANBPGAS)) {
		    if (rnd(level/20) == 0)
			turn_off(*tp, CANBPGAS);
		    breath = "nerve gas";
		}

		else if (on(*tp, CANBSGAS)) {
		    if (rnd(level/20) == 0)
			turn_off(*tp, CANBSGAS);
		    breath = "sleeping gas";
		}

		else if (on(*tp, CANBSLGAS)) {
		    if (rnd(level/20) == 0)
			turn_off(*tp, CANBSLGAS);
		    breath = "slow gas";
		}

		else {
		    if (rnd(level/20) == 0)
			turn_off(*tp, CANBFGAS);
		    breath = "fear gas";
		}

		/* Now breathe -- returns TRUE if kills itself */
		deadflg =
		    shoot_bolt(tp, *er, *shoot_dir, FALSE, tp->t_index, breath,
			       (save(VS_BREATH) ? tp->t_stats.s_hpt/2
					        : tp->t_stats.s_hpt));

		if (deadflg && mdead != NULL)
			*mdead = 1;

		ch_ret = *er;
		dist = DISTANCE(ch_ret.y, ch_ret.x, ee->y, ee->x);
		if (deadflg) return(TRUE);
	}

    /* 
     * If we can shoot or throw something, we might do so 
     * if we are running away, we may decide to shoot anyway if we are far 
     * enough
     */
    else if((off(*tp, ISFLEE) || rnd(DISTANCE(er->y,er->x,ee->y,ee->x)) > 2) && 
	     on(*tp, CANSHOOT) && (off(player, ISDISGUISE) ||
		 (rnd(tp->t_stats.s_lvl) > 6)) &&
	    (shoot_dir) &&
	    (weapon)) {
		missile(shoot_dir->y, shoot_dir->x, weapon, tp);
		ch_ret = *er;
		dist = DISTANCE(ch_ret.y, ch_ret.x, ee->y, ee->x);
	}

    /*
     * Otherwise, find the empty spot next to the chaser that is
     * closest to the chasee.
     */
    else {
	register int ey, ex;
	register struct room *rer, *ree;
	register int dist_to_old = MININT; /* Dist from goal to old position */

	/* Get rooms */
	rer = roomin(er);
	ree = roomin(ee);

	/*
	 * This will eventually hold where we move to get closer
	 * If we can't find an empty spot, we stay where we are.
	 */
	dist = flee ? 0 : MAXINT;
	ch_ret = *er;

	/* Are we at our goal already? */
	if (!flee && ce(ch_ret, *ee)) return(FALSE);

	ey = er->y + 1;
	ex = er->x + 1;
	for (x = er->x - 1; x <= ex; x++)
	    for (y = er->y - 1; y <= ey; y++) {
		coord tryp;

		/* Don't try off the board */
		if ((x < 0) || (x >= COLS) || (y < 1) || (y >= LINES - 2))
		    continue;

		/* Don't try the player if not going after the player */
		/* or he's disguised */
		if ( ((off(*tp, ISFLEE) && !ce(hero, *ee)) ||
			(on(player, ISDISGUISE) && (rnd(tp->t_stats.s_lvl) < 6))) &&
			x == hero.x && y == hero.y)
		    continue;

		tryp.x = x;
		tryp.y = y;

		/* Is there a monster on this spot closer to our goal?
		 * Don't look in our spot or where we were.
		 */
		if (!ce(tryp, *er) && !ce(tryp, tp->t_oldpos) &&
		    isalpha(mch = CCHAR( mvwinch(mw, y, x) ))) {
		    register int test_dist;

		    test_dist = DISTANCE(y, x, ee->y, ee->x);
		    if (test_dist <= 25 &&   /* Let's be fairly close */
			test_dist < monst_dist) {
			/* Could we really move there? */
			mvwaddch(mw, y, x, ' '); /* Temporarily blank monst */
			if (diag_ok(er, &tryp, tp)) monst_dist = test_dist;
			mvwaddch(mw, y, x, mch); /* Restore monster */
		    }
		}

		if (!diag_ok(er, &tryp, tp))
		    continue;
		ch = CCHAR( mvwinch(cw, y, x) );	/* Screen character */
		if (on(*tp, ISFLEE) && (ch == PLAYER)) next_player = TRUE;

		/* Stepping on player is NOT okay if we are fleeing */
		if (step_ok(y, x, NOMONST, tp) &&
		    (off(*tp, ISFLEE) || ch != PLAYER))
		{
		    /*
		     * If it is a trap, an intelligent monster may not
		     * step on it (unless our hero is on top!)
		     */
		    if (isatrap(ch)) {
			if (!(ch == RUSTTRAP) &&
				!(ch == FIRETRAP && on(*tp,NOFIRE)) &&
			    rnd(10) < tp->t_stats.s_intel &&
			    (y != hero.y || x != hero.x))
				continue;
		    }

		    /*
		     * OK -- this place counts
		     */
		    thisdist = DISTANCE(y, x, ee->y, ee->x);

		    /* Adjust distance if we are being shot at */
		    if (tp->t_wasshot && tp->t_stats.s_intel > 5 &&
			ce(hero, *ee)) {
			/* Move out of line of sight */
			if (straight_shot(tryp.y, tryp.x, ee->y, ee->x, NULL)) {
			    if (flee) thisdist -= SHOTPENALTY;
			    else thisdist += SHOTPENALTY;
			}

			/* But do we want to leave the room? */
			else if (rer && rer == ree && ch == DOOR)
			    thisdist += DOORPENALTY;
		    }

		    /* Don't move to the last position if we can help it */
		    if (ce(tryp, tp->t_oldpos)) dist_to_old = thisdist;

		    else if ((flee && (thisdist > dist)) ||
			(!flee && (thisdist < dist)))
		    {
			ch_ret = tryp;
			dist = thisdist;
		    }
		}
	    }

	/* If we are running from the player and he is in our way,
	 * go ahead and slug him.
	 */
	if (next_player && DISTANCE(er->y, er->x, ee->y, ee->x) < dist &&
	    step_ok(tp->t_dest->y, tp->t_dest->x, NOMONST, tp)) {
	    ch_ret = *(tp->t_dest);	/* Okay to hit player */
	    return FALSE;
	}


	/* If we can't get closer to the player (if that's our goal)
	 * because other monsters are in the way, just stay put
	 */
	if (!flee && ce(hero, *ee) && monst_dist < MAXINT &&
	    DISTANCE(er->y, er->x, hero.y, hero.x) < dist)
		ch_ret = *er;

	/* Do we want to go back to the last position? */
	else if (dist_to_old != MININT &&      /* It is possible to move back */
	    ((flee && dist == 0) ||	/* No other possible moves */
	     (!flee && dist == MAXINT))) {
	    /* Do we move back or just stay put (default)? */
	    dist = DISTANCE(er->y, er->x, ee->y, ee->x); /* Current distance */
	    if (!flee || (flee && (dist_to_old > dist))) ch_ret = tp->t_oldpos;
	}
    }

    /* Make sure we have the real distance now */
    dist = DISTANCE(ch_ret.y, ch_ret.x, ee->y, ee->x);

    /* Mark monsters in a wall */
    if (isrock(CCHAR( mvinch(ch_ret.y, ch_ret.x) ))) 
	turn_on(*tp, ISINWALL);
    else 
	turn_off(*tp, ISINWALL);

    if (off(*tp, ISFLEE) &&
	((tp->t_dest != &hero) || off(player, ISINWALL) || on(*tp, CANINWALL)))
	return (dist != 0);

    /* May actually hit here from a confused move */
    else return(!ce(ch_ret, hero));
}
Example #16
0
void
read_scroll(void)
{
    THING *obj;
    PLACE *pp;
    int y, x;
    int ch;
    int i;
    int discardit = FALSE;
    struct room *cur_room;
    THING *orig_obj;
    coord mp;

    obj = get_item("read", SCROLL);
    if (obj == NULL)
	return;
    if (obj->o_type != SCROLL)
    {
	if (!terse)
	    msg("there is nothing on it to read");
	else
	    msg("nothing to read");
	return;
    }
    /*
     * Calculate the effect it has on the poor guy.
     */
    if (obj == cur_weapon)
	cur_weapon = NULL;
    /*
     * Get rid of the thing
     */
    discardit = (obj->o_count == 1);
    leave_pack(obj, FALSE, FALSE);
    orig_obj = obj;

    switch (obj->o_which)
    {
	case S_CONFUSE:
	    /*
	     * Scroll of monster confusion.  Give him that power.
	     */
	    player.t_flags |= CANHUH;
	    msg("your hands begin to glow %s", pick_color("red"));
	when S_ARMOR:
	    if (cur_armor != NULL)
	    {
		cur_armor->o_arm--;
		cur_armor->o_flags &= ~ISCURSED;
		msg("your armor glows %s for a moment", pick_color("silver"));
	    }
	when S_HOLD:
	    /*
	     * Hold monster scroll.  Stop all monsters within two spaces
	     * from chasing after the hero.
	     */

	    ch = 0;
	    for (x = hero.x - 2; x <= hero.x + 2; x++)
		if (x >= 0 && x < NUMCOLS)
		    for (y = hero.y - 2; y <= hero.y + 2; y++)
			if (y >= 0 && y <= NUMLINES - 1)
			    if ((obj = moat(y, x)) != NULL && on(*obj, ISRUN))
			    {
				obj->t_flags &= ~ISRUN;
				obj->t_flags |= ISHELD;
				ch++;
			    }
	    if (ch)
	    {
		addmsg("the monster");
		if (ch > 1)
		    addmsg("s around you");
		addmsg(" freeze");
		if (ch == 1)
		    addmsg("s");
		endmsg();
		scr_info[S_HOLD].oi_know = TRUE;
	    }
	    else
		msg("you feel a strange sense of loss");
	when S_SLEEP:
	    /*
	     * Scroll which makes you fall asleep
	     */
	    scr_info[S_SLEEP].oi_know = TRUE;
	    no_command += rnd(SLEEPTIME) + 4;
	    player.t_flags &= ~ISRUN;
	    msg("you fall asleep");
	when S_CREATE:
	    /*
	     * Create a monster:
	     * First look in a circle around him, next try his room
	     * otherwise give up
	     */
	    i = 0;
	    for (y = hero.y - 1; y <= hero.y + 1; y++)
		for (x = hero.x - 1; x <= hero.x + 1; x++)
		    /*
		     * Don't put a monster in top of the player.
		     */
		    if (y == hero.y && x == hero.x)
			continue;
		    /*
		     * Or anything else nasty
		     * Also avoid a xeroc which is disguised as scroll
		     */
		    else if (moat(y, x) == NULL && step_ok(ch = winat(y, x)))
		    {
			if (ch == SCROLL
			    && find_obj(y, x)->o_which == S_SCARE)
				continue;
			else if (rnd(++i) == 0)
			{
			    mp.y = y;
			    mp.x = x;
			}
		    }
	    if (i == 0)
		msg("you hear a faint cry of anguish in the distance");
	    else
	    {
		obj = new_item();
		new_monster(obj, randmonster(FALSE), &mp);
	    }
	when S_ID_POTION:
	case S_ID_SCROLL:
	case S_ID_WEAPON:
	case S_ID_ARMOR:
	case S_ID_R_OR_S:
	{
	    int id_type[S_ID_R_OR_S + 1] =
		{ 0, 0, 0, 0, 0, POTION, SCROLL, WEAPON, ARMOR, R_OR_S };
	    /*
	     * Identify, let him figure something out
	     */
	    scr_info[obj->o_which].oi_know = TRUE;
	    msg("this scroll is an %s scroll", scr_info[obj->o_which].oi_name);
/*	    whatis(TRUE, id_type[obj->o_which]); */
	    if (idscr_md != TRUE)
		whatis(TRUE, id_type[obj->o_which]);
	    else
		whatis(FALSE, 0);
	}
	when S_MAP:
	    /*
	     * Scroll of magic mapping.
	     */
	    scr_info[S_MAP].oi_know = TRUE;
	    msg("oh, now this scroll has a map on it");
	    /*
	     * take all the things we want to keep hidden out of the window
	     */
	    for (y = 1; y < NUMLINES - 1; y++)
		for (x = 0; x < NUMCOLS; x++)
		{
		    pp = INDEX(y, x);
		    switch (ch = pp->p_ch)
		    {
			case DOOR:
			case STAIRS:
			    break;

			case '-':
			case '|':
			    if (!(pp->p_flags & F_REAL))
			    {
				ch = pp->p_ch = DOOR;
				pp->p_flags |= F_REAL;
			    }
			    break;

			case ' ':
			    if (pp->p_flags & F_REAL)
				goto def;
			    pp->p_flags |= F_REAL;
			    ch = pp->p_ch = PASSAGE;
			    /* FALLTHROUGH */

			case PASSAGE:
pass:
			    if (!(pp->p_flags & F_REAL))
				pp->p_ch = PASSAGE;
			    pp->p_flags |= (F_SEEN|F_REAL);
			    ch = PASSAGE;
			    break;

			case FLOOR:
			    if (pp->p_flags & F_REAL)
				ch = ' ';
			    else
			    {
				ch = TRAP;
				pp->p_ch = TRAP;
				pp->p_flags |= (F_SEEN|F_REAL);
			    }
			    break;

			default:
def:
			    if (pp->p_flags & F_PASS)
				goto pass;
			    ch = ' ';
			    break;
		    }
		    if (ch != ' ')
		    {
			if ((obj = pp->p_monst) != NULL)
			    obj->t_oldch = ch;
			if (obj == NULL || !on(player, SEEMONST))
			    mvaddch2(y, x, ch);
		    }
		}
	when S_FDET:
	    /*
	     * Potion of gold detection
	     */
	    ch = FALSE;
	    wclear(hw);
	    for (obj = lvl_obj; obj != NULL; obj = next(obj))
		if (obj->o_type == FOOD)
		{
		    ch = TRUE;
		    wmove(hw, obj->o_pos.y, obj->o_pos.x);
		    waddch2(hw, FOOD);
		}
	    if (ch)
	    {
		scr_info[S_FDET].oi_know = TRUE;
		show_win("Your nose tingles and you smell food.--More--");
	    }
	    else
		msg("your nose tingles");
	when S_TELEP:
	    /*
	     * Scroll of teleportation:
	     * Make him dissapear and reappear
	     */
	    {
		cur_room = proom;
		teleport();
		if (cur_room != proom)
		    scr_info[S_TELEP].oi_know = TRUE;
	    }
	when S_ENCH:
	    if (cur_weapon == NULL || cur_weapon->o_type != WEAPON)
		msg("you feel a strange sense of loss");
	    else
	    {
		cur_weapon->o_flags &= ~ISCURSED;
		if (rnd(2) == 0)
		    cur_weapon->o_hplus++;
		else
		    cur_weapon->o_dplus++;
		msg("your %s glows %s for a moment",
		    weap_info[cur_weapon->o_which].oi_name, pick_color("blue"));
	    }
	when S_SCARE:
	    /*
	     * Reading it is a mistake and produces laughter at her
	     * poor boo boo.
	     */
	    msg("you hear maniacal laughter in the distance");
	when S_REMOVE:
	    uncurse(cur_armor);
	    uncurse(cur_weapon);
	    uncurse(cur_ring[LEFT]);
	    uncurse(cur_ring[RIGHT]);
	    msg(choose_str("you feel in touch with the Universal Onenes",
			   "you feel as if somebody is watching over you"));
	when S_AGGR:
	    /*
	     * This scroll aggravates all the monsters on the current
	     * level and sets them running towards the hero
	     */
	    aggravate();
	    msg("you hear a high pitched humming noise");
	when S_PROTECT:
	    if (cur_armor != NULL)
	    {
		cur_armor->o_flags |= ISPROT;
		msg("your armor is covered by a shimmering %s shield",
		    pick_color("gold"));
	    }
	    else
		msg("you feel a strange sense of loss");
#ifdef MASTER
	otherwise:
	    msg("what a puzzling scroll!");
	    return;
#endif
    }
    obj = orig_obj;
    look(TRUE);	/* put the result of the scroll on the screen */
    status();

    call_it(&scr_info[obj->o_which]);

    if (discardit)
	discard(obj);
}
int
chase(struct thing *tp, coord *ee, int flee)
{
    int x, y;
    int dist, thisdist, monst_dist = INT_MAX;
    struct linked_list  *weapon;
    coord   *er = &tp->t_pos;
    coord shoot;
    coord *shootit_dir = NULL;
    int ch;
    char   mch;
    int    next_player = FALSE;

    /* Take care of shooting directions */

    if (on(*tp, CANBREATHE) || on(*tp, CANSHOOT) || on(*tp, CANCAST))
    {
        if (good_monster(*tp))
        {
            shootit_dir = find_shoot(tp, &shoot); /* find a mean monster */

            if (wizard && shootit_dir)
                msg("Found monster to attack towards (%d,%d).",
                    shootit_dir->x, shootit_dir->y);
        }
        else
            shootit_dir = can_shoot(er, ee, &shoot);  /* shoot hero */
    }

    /*
     * If the thing is confused, let it move randomly. Some monsters are
     * slightly confused all of the time.
     */

    if ((on(*tp, ISHUH) && rnd(10) < 8) ||
        ((on(*tp, ISINVIS) || on(*tp, ISSHADOW)) && rnd(100) < 20) ||
        (on(player, ISINVIS) && off(*tp, CANSEE)))
    {   /* Player is invisible */

        /* get a valid random move */

        tp->t_nxtpos = rndmove(tp);

        dist = DISTANCE(tp->t_nxtpos, *ee);

        if (on(*tp, ISHUH) && rnd(20) == 0) /* monster might lose confusion */
            turn_off(*tp, ISHUH);

        /*
         * check to see if random move takes creature away from
         * player if it does then turn off ISHELD
         */

        if (dist > 1 && on(*tp, DIDHOLD))
        {
            turn_off(*tp, DIDHOLD);
            turn_on(*tp, CANHOLD);

            if (--hold_count == 0)
                turn_off(player, ISHELD);
        }
    } /* If we can breathe, we may do so */
    else if (on(*tp, CANBREATHE) && (shootit_dir) && (rnd(100) < 67) &&
         (off(player, ISDISGUISE) || (rnd(tp->t_stats.s_lvl) > 6)) &&
         (DISTANCE(*er, *ee) < BOLT_LENGTH * BOLT_LENGTH))
    {
        int   chance;
        char    *breath;

        /* Will it breathe at random */

        if (on(*tp, CANBRANDOM))
        {
            if (rnd(level / 20) == 0 && tp->t_index != nummonst + 1
                && !(good_monster(*tp)))
                turn_off(*tp, CANBRANDOM);

            /* Select type of breath */

            chance = rnd(100);

            if (chance < 11)
                breath = "acid";
            else if (chance < 22)
                breath = "flame";
            else if (chance < 33)
                breath = "lightning bolt";
            else if (chance < 44)
                breath = "chlorine gas";
            else if (chance < 55)
                breath = "ice";
            else if (chance < 66)
                breath = "nerve gas";
            else if (chance < 77)
                breath = "sleeping gas";
            else if (chance < 88)
                breath = "slow gas";
            else
                breath = "fear gas";
        } /* Or can it breathe acid? */
        else if (on(*tp, CANBACID))
        {
            if (!good_monster(*tp) && rnd(level / 15) == 0)
                turn_off(*tp, CANBACID);

            breath = "acid";
        } /* Or can it breathe fire */
        else if (on(*tp, CANBFIRE))
        {
            if (!good_monster(*tp) && rnd(level / 15) == 0)
                turn_off(*tp, CANBFIRE);

            breath = "flame";
        } /* Or can it breathe electricity? */
        else if (on(*tp, CANBBOLT))
        {
            if (!good_monster(*tp) && rnd(level / 15) == 0)
                turn_off(*tp, CANBBOLT);

            breath = "lightning bolt";
        } /* Or can it breathe gas? */
        else if (on(*tp, CANBGAS))
        {
            if (!good_monster(*tp) && rnd(level / 15) == 0)
                turn_off(*tp, CANBGAS);

            breath = "chlorine gas";
        } /* Or can it breathe ice? */
        else if (on(*tp, CANBICE))
        {
            if (!good_monster(*tp) && rnd(level / 15) == 0)
                turn_off(*tp, CANBICE);

            breath = "ice";
        }
        else if (on(*tp, CANBPGAS))
        {
            if (!good_monster(*tp) && rnd(level / 15) == 0)
                turn_off(*tp, CANBPGAS);

            breath = "nerve gas";
        }
        else if (on(*tp, CANBSGAS))
        {
            if (!good_monster(*tp) && rnd(level / 15) == 0)
                turn_off(*tp, CANBSGAS);

            breath = "sleeping gas";
        }
        else if (on(*tp, CANBSLGAS))
        {
            if (!good_monster(*tp) && rnd(level / 15) == 0)
                turn_off(*tp, CANBSLGAS);

            breath = "slow gas";
        }
        else
        {
            if (!good_monster(*tp) && rnd(level / 15) == 0)
                turn_off(*tp, CANBFGAS);

            breath = "fear gas";
        }

        shoot_bolt(tp, *er, *shootit_dir, (tp == THINGPTR(fam_ptr)),
               tp->t_index, breath, roll(tp->t_stats.s_lvl, 6));

        tp->t_nxtpos = *er;

        dist = DISTANCE(tp->t_nxtpos, *ee);

        if (!curr_mons)
            return (TRUE);
    }
    else if (shootit_dir && on(*tp, CANCAST) &&
         (off(player, ISDISGUISE) || (rnd(tp->t_stats.s_lvl) > 6)))
    {
        /*
            If we can cast spells we might do so - even if adjacent fleeing
            monsters are restricted to certain spells
        */

        incant(tp, *shootit_dir);
        tp->t_nxtpos = *er;
        dist = DISTANCE(tp->t_nxtpos, *ee);
    }
    else if (shootit_dir && on(*tp, CANSHOOT)) 
    {
	weapon = get_hurl(tp);
	
	if (weapon &&
         (off(*tp, ISFLEE) || rnd(DISTANCE(*er, *ee)) > 2) &&
         (off(player, ISDISGUISE) || (rnd(tp->t_stats.s_lvl) > 6)))
	{
	    /*
	        Should we shoot or throw something? fleeing monsters 
		may to shoot anyway if far enough away
	    */

	    missile(shootit_dir->y, shootit_dir->x, weapon, tp);
	    tp->t_nxtpos = *er;
	    dist = DISTANCE(tp->t_nxtpos, *ee);
	}
    }
    else
    {
        /*
            Otherwise, find the empty spot next to the chaser that is closest
            to the chasee.
        */
        int ey, ex;
        struct room *rer, *ree;
        int dist_to_old = INT_MIN;   /* Dist from goal to old position */

        /* Get rooms */
        rer = roomin(*er);
        ree = roomin(*ee);

        /*
         * This will eventually hold where we move to get closer. If
         * we can't find an empty spot, we stay where we are.
         */

        dist = flee ? 0 : INT_MAX;
        tp->t_nxtpos = *er;

        /* Are we at our goal already? */

        if (!flee && ce(tp->t_nxtpos, *ee))
            return (FALSE);

        ey = er->y + 1;
        ex = er->x + 1;

        for (x = er->x - 1; x <= ex; x++)
            for (y = er->y - 1; y <= ey; y++)
            {
                coord   tryp; /* test position */

                /* Don't try off the screen */

                if ((x < 0) || (x >= COLS) || (y < 1) || (y >= LINES - 2))
                    continue;

                /*
                 * Don't try the player if not going after
                 * the player or he's disguised and monster is dumb
                 */

                if (((off(*tp, ISFLEE) && !ce(hero, *ee)) ||
                     (on(player, ISDISGUISE) && (rnd(tp->t_stats.s_lvl) < 6))
                     || good_monster(*tp))
                    && x == hero.x && y == hero.y)
                    continue;

                tryp.x = x;
                tryp.y = y;

                /*
                 * Is there a monster on this spot closer to
                 * our goal? Don't look in our spot or where
                 * we were.
                 */

                if (!ce(tryp, *er) && !ce(tryp, tp->t_oldpos) &&
                    isalpha( (mch = CCHAR(mvwinch(mw, y, x))) ) )
                {
                    int test_dist;

                    test_dist = DISTANCE(tryp,*ee);
                    if (test_dist <= 25 &&  /* Let's be fairly close */
                        test_dist < monst_dist)
                    {

                        /* Could we really move there? */

                        mvwaddch(mw, y, x, ' '); /* Temp blank monst */

                        if (diag_ok(er, &tryp, tp))
                            monst_dist = test_dist;

                        mvwaddch(mw, y, x, mch);    /* Restore monster */
                    }
                }

                if (!diag_ok(er, &tryp, tp))
                    continue;

                ch = mvwinch(cw, y, x); /* Screen character */

                /*
                 * Stepping on player is NOT okay if we are
                 * fleeing
                 */

                if (on(*tp, ISFLEE) && (ch == PLAYER))
				    next_player = TRUE;
					
                if (step_ok(y, x, NOMONST, tp) &&
                    (off(*tp, ISFLEE) || ch != PLAYER))
                {

                    /*
                     * If it is a trap, an intelligent
                     * monster may not step on it (unless
                     * our hero is on top!)
                     */

                    if (isatrap(ch))
                    {
                        if (!(ch == RUSTTRAP) &&
                            !(ch == FIRETRAP && on(*tp, NOFIRE)) &&
                            rnd(10) < tp->t_stats.s_intel &&
                        (y != hero.y || x != hero.x))
                            continue;
                    }

                    /*
                     * OK -- this place counts
                     */

                    thisdist = DISTANCE(tryp, *ee);
					
                    /*
                     * Adjust distance if we are being
                     * shot at to moving out of line of sight.
                     */

                    if (tp->t_wasshot && tp->t_stats.s_intel > 5 &&
                        ce(hero, *ee))
                    {
                        /* Move out of line of sight */
                        if (straight_shot(tryp.y, tryp.x, ee->y, ee->x, NULL))
                        {
                            if (flee)
                                thisdist -= SHOTPENALTY;
                            else
                                thisdist += SHOTPENALTY;
                        }

                        /*
                         * But do we want to leave
                         * the room?
                         */
                        else if (rer && rer == ree && ch == DOOR)
                            thisdist += DOORPENALTY;
                    }

                    /*
                     * Don't move to the last position if
                     * we can help it
                     */

                    if (ce(tryp, tp->t_oldpos))
                        dist_to_old = thisdist;
                    else if ((flee && (thisdist > dist)) ||
                         (!flee && (thisdist < dist)))
                    {
                        tp->t_nxtpos = tryp;
                        dist = thisdist;
                    }
                }
            }

        /*
         * If we are running from the player and he is in our way, go
         * ahead and slug him.
         */

        if (next_player && DISTANCE(*er,*ee) < dist &&
            step_ok(tp->t_chasee->t_pos.y, tp->t_chasee->t_pos.x, NOMONST, tp))
        {
            tp->t_nxtpos = tp->t_chasee->t_pos;    /* Okay to hit player */
            return(FALSE);
        }


        /*
         * If we can't get closer to the player (if that's our goal)
         * because other monsters are in the way, just stay put
         */

        if (!flee && ce(hero, *ee) && monst_dist < INT_MAX &&
            DISTANCE(*er, hero) < dist)
            tp->t_nxtpos = *er;

        /* Do we want to go back to the last position? */
        else if (dist_to_old != INT_MIN &&   /* It is possible to move back */
             ((flee && dist == 0) ||        /* No other possible moves */
              (!flee && dist == INT_MAX)))
        {
            /* Do we move back or just stay put (default)? */

            dist = DISTANCE(*er,*ee); /* Current distance */

            if (!flee || (flee && (dist_to_old > dist)))
                tp->t_nxtpos = tp->t_oldpos;
        }
    }

    /* Make sure we have the real distance now */
    dist = DISTANCE(tp->t_nxtpos, *ee);

    /* Mark monsters in a wall */

    switch(mvinch(tp->t_nxtpos.y, tp->t_nxtpos.x))
    {
        case WALL:
        case '-':
        case '|':
            turn_on(*tp, ISINWALL);
            break;
        default:
            turn_off(*tp, ISINWALL);
    }

    if (off(*tp, ISFLEE) &&
        !(!SAME_POS((tp->t_chasee->t_pos),hero) || off(player, ISINWALL) || on(*tp, CANINWALL)))
        return(dist != 0);
    else /* May actually hit here from a confused move */
        return(!ce(tp->t_nxtpos, hero));
}
void
wanderer(void)
{
    int i, cnt = 0;
    struct room *hr = roomin(hero);
    struct linked_list  *item;
    struct thing    *tp;
    coord   cp;
    char    *loc;
    int which;

    /* Find a place for it -- avoid the player's room */

    do
    {
        do
        {
            cnt++;
            i = rnd_room();
        }
        while (!(hr != &rooms[i] || levtype == MAZELEV
               || levtype == THRONE || cnt > 5000));

        rnd_pos(&rooms[i], &cp);
    }
    while(!step_ok(cp.y, cp.x, NOMONST, NULL));

    /* Create a new wandering monster */

    item = new_item(sizeof *tp);
    which = randmonster(TRUE, FALSE);
    new_monster(item, which, &cp, FALSE);

    tp = THINGPTR(item);
    tp->t_pos = cp;     /* Assign the position to the monster */

    chase_it(&tp->t_pos, &player);

    i = rnd(7);

    if (on(*tp, ISSWARM) && i < 5)
        cnt = roll(2, 4);
    else if (on(*tp, ISFLOCK) && i < 5)
        cnt = roll(1, 4);
    else
        cnt = 0;

    for (i = 1; i <= cnt; i++)
    {
        struct linked_list  *ip = creat_mons(tp, which, NOMESSAGE);

        if (ip != NULL)
        {
            struct thing    *mp = THINGPTR(ip);

            if (on(*tp, ISFRIENDLY))
                turn_on(*mp, ISFRIENDLY);
            else
                turn_off(*mp, ISFRIENDLY);
        }
    }

    if (cnt > 0)
    {
        if (on(*tp, LOWCAST) || on(*tp, MEDCAST) || on(*tp, HIGHCAST))
            turn_on(*tp, CANCAST);

        tp->t_stats.s_hpt += roll(2, 8);
        tp->t_stats.s_lvl += roll(2, 3);
        tp->t_stats.s_arm -= roll(1, 6);
        tp->t_stats.s_str += roll(2, 3);
        tp->t_stats.s_intel += roll(2, 3);
        tp->t_stats.s_exp += roll(2, 8) * monsters[which].m_add_exp;
    }

    i = DISTANCE(cp, hero);

    if (i < 20)
        loc = "very close to you";
    else if (i < 400)
        loc = "nearby";
    else
        loc = "in the distance";

    if (wizard)
        msg("Started a wandering %s.", monsters[tp->t_index].m_name);
    else if (on(*tp, ISUNDEAD) && (player.t_ctype == C_CLERIC ||
            player.t_ctype == C_PALADIN || is_wearing(R_PIETY)))
        msg("You sense a new ungodly monster %s.", loc);
    else if (on(player, CANHEAR) || (player.t_ctype == C_THIEF &&
            rnd(20) == 0))
        msg("You hear a new %s moving %s.",
            monsters[tp->t_index].m_name, loc);
    else if (on(player, CANSCENT) || (player.t_ctype == C_THIEF &&
            rnd(20) == 0))
        msg("You smell a new %s %s.", monsters[tp->t_index].m_name,
            loc);
}
Example #19
0
read_scroll()
{
    register struct object *obj;
    register struct linked_list *item;
    register struct room *rp;
    register int i,j;
    register char ch, nch;
    register struct linked_list *titem;
    char buf[80];

    item = get_item("run", SCROLL);
    if (item == NULL)
	return;
    obj = (struct object *) ldata(item);
    if (obj->o_type != SCROLL)
    {
	if (!terse)
	    msg("There is no way to run it");
	else
	    msg("Nothing to run");
	return;
    }
    msg("As you run the device, it self-destructs.");
    /*
     * Calculate the effect it has on the poor guy.
     */
    if (obj == cur_weapon)
	cur_weapon = NULL;
    switch(obj->o_which)
    {
	when S_CONFUSE:
	    /*
	     * Scroll of monster confusion.  Give him that power.
	     */
	    msg("Your hands begin to glow red");
	    player.t_flags |= CANHUH;
	when S_LIGHT:
	    s_know[S_LIGHT] = TRUE;
	    if ((rp = roomin(&hero)) == NULL)
		msg("The corridor glows and then fades");
	    else
	    {
		addmsg("The room is lit");
		if (!terse)
		    addmsg(" by a shimmering blue light.");
		endmsg();
		rp->r_flags &= ~ISDARK;
		/*
		 * Light the room and put the player back up
		 */
		light(&hero);
		mvwaddch(cw, hero.y, hero.x, PLAYER);
	    }
	when S_ARMOR:
	    if (cur_armor != NULL)
	    {
		msg("Your armor glows faintly for a moment");
		cur_armor->o_ac--;
		cur_armor->o_flags &= ~ISCURSED;
	    }
	when S_HOLD:
	    /*
	     * Hold monster scroll.  Stop all monsters within two spaces
	     * from chasing after the hero.
	     */
	    {
		register int x,y;
		register struct linked_list *mon;

		for (x = hero.x-2; x <= hero.x+2; x++)
		    for (y = hero.y-2; y <= hero.y+2; y++)
			if (y > 0 && x > 0 && isupper(mvwinch(mw, y, x)))
			    if ((mon = find_mons(y, x)) != NULL)
			    {
				register struct thing *th;

				th = (struct thing *) ldata(mon);
				th->t_flags &= ~ISRUN;
				th->t_flags |= ISHELD;
			    }
	    }
	when S_SLEEP:
	    /*
	     * Scroll which makes you fall asleep
	     */
	    s_know[S_SLEEP] = TRUE;
	    msg("You fall asleep.");
	    no_command += 4 + rnd(SLEEPTIME);
	when S_CREATE:
	    /*
	     * Create a monster
	     * First look in a circle around him, next try his room
	     * otherwise give up
	     */
	    {
		register int x, y;
		register bool appear = 0;
		coord mp;

		/*
		 * Search for an open place
		 */
		for (y = hero.y; y <= hero.y+1; y++)
		    for (x = hero.x; x <= hero.x+1; x++)
		    {
			/*
			 * Don't put a monster in top of the player.
			 */
			if (y == hero.y && x == hero.x)
			    continue;
			/*
			 * Or anything else nasty
			 */
			if (step_ok(winat(y, x)))
			{
			    if (rnd(++appear) == 0)
			    {
				mp.y = y;
				mp.x = x;
			    }
			}
		    }
		if (appear)
		{
		    titem = new_item(sizeof (struct thing));
		    new_monster(titem, randmonster(FALSE), &mp);
		}
		else
		    msg("You hear a faint cry of anguish in the distance.");
	    }
	when S_IDENT:
	    /*
	     * Identify, let the rogue figure something out
	     */
	    msg("This nanodevice is an identify nanodevice");
	    s_know[S_IDENT] = TRUE;
	    whatis();
	when S_MAP:
	    /*
	     * Scroll of magic mapping.
	     */
	    s_know[S_MAP] = TRUE;
	    msg("Oh, now this nanodevice has a map on it.");
	    overwrite(stdscr, hw);
	    /*
	     * Take all the things we want to keep hidden out of the window
	     */
	    for (i = 0; i < lines(); i++)
		for (j = 0; j < cols(); j++)
		{
		    switch (nch = ch = mvwinch(hw, i, j))
		    {
			case SECRETDOOR:
			    mvaddch(i, j, nch = DOOR);
			case '-':
			case '|':
			case DOOR:
			case PASSAGE:
			case ' ':
			case STAIRS:
			    if (mvwinch(mw, i, j) != ' ')
			    {
				register struct thing *it;

				it = (struct thing *) ldata(find_mons(i, j));
				if (it->t_oldch == ' ')
				    it->t_oldch = nch;
			    }
			    break;
			default:
			    nch = ' ';
		    }
		    if (nch != ch)
			waddch(hw, nch);
		}
	    /*
	     * Copy in what he has discovered
	     */
	    overlay(cw, hw);
	    /*
	     * And set up for display
	     */
	    overwrite(hw, cw);
	when S_GFIND:
	    /*
	     * Potion of gold detection
	     */
	    {
		int gtotal = 0;

		wclear(hw);
		for (i = 0; i < MAXROOMS; i++)
		{
		    gtotal += rooms[i].r_goldval;
		    if (rooms[i].r_goldval != 0 &&
			mvwinch(stdscr, rooms[i].r_gold.y, rooms[i].r_gold.x)
			== GOLD)
			mvwaddch(hw,rooms[i].r_gold.y,rooms[i].r_gold.x,GOLD);
		}
		if (gtotal)
		{
		    s_know[S_GFIND] = TRUE;
		    show_win(hw,
			"You connect to the Net and detect credits locations.--More--");
		}
		else msg("You begin to feel a pull downward");
	    }
	when S_TELEP:
	    /*
	     * Scroll of teleportation:
	     * Make him dissapear and reappear
	     */
	    {
		int rm;
		struct room *cur_room;

		cur_room = roomin(&hero);
		rm = teleport();
		if (cur_room != &rooms[rm])
		    s_know[S_TELEP] = TRUE;
	    }
	when S_ENCH:
	    if (cur_weapon == NULL)
		msg("You feel a strange sense of loss.");
	    else
	    {
		cur_weapon->o_flags &= ~ISCURSED;
		if (rnd(100) > 50)
		    cur_weapon->o_hplus++;
		else
		    cur_weapon->o_dplus++;
		msg("Your %s glows blue for a moment.", w_names[cur_weapon->o_which]);
	    }
	when S_SCARE:
	    /*
	     * A monster will refuse to step on a scare monster scroll
	     * if it is dropped.  Thus reading it is a mistake and produces
	     * laughter at the poor rogue's boo boo.
	     */
	    msg("You hear maniacal laughter in the distance.");
	when S_REMOVE:
	    if (cur_armor != NULL)
		cur_armor->o_flags &= ~ISCURSED;
	    if (cur_weapon != NULL)
		cur_weapon->o_flags &= ~ISCURSED;
	    if (cur_ring[LEFT] != NULL)
		cur_ring[LEFT]->o_flags &= ~ISCURSED;
	    if (cur_ring[RIGHT] != NULL)
		cur_ring[RIGHT]->o_flags &= ~ISCURSED;
	    msg("You feel as if somebody is watching over you.");
	when S_AGGR:
	    /*
	     * This scroll aggravates all the monsters on the current
	     * level and sets them running towards the hero
	     */
	    aggravate();
	    msg("You hear a high pitched humming noise.");
	when S_NOP:
	    msg("This nanodevice seems to be empty.");
	when S_GENOCIDE:
	    msg("You have been granted the boon of genocide");
	    genocide();
	    s_know[S_GENOCIDE] = TRUE;
	otherwise:
	    msg("What a puzzling nanodevice!");
	    return;
    }
    look(TRUE);	/* put the result of the scroll on the screen */
    status();
    if (s_know[obj->o_which] && s_guess[obj->o_which])
    {
	cfree(s_guess[obj->o_which]);
	s_guess[obj->o_which] = NULL;
    }
    else if (!s_know[obj->o_which] && askme && s_guess[obj->o_which] == NULL)
    {
	msg(terse ? "Call it: " : "What do you want to call it? ");
	if (get_str(buf, cw) == NORM)
	{
	    s_guess[obj->o_which] = malloc((unsigned int) strlen(buf) + 1);
	    strcpy(s_guess[obj->o_which], buf);
	}
    }
    /*
     * Get rid of the thing
     */
    inpack--;
    if (obj->o_count > 1)
	obj->o_count--;
    else
    {
	detach(pack, item);
        discard(item);
    }
}