view rogue3/weapons.c @ 182:1fe660009fd3

rogue4: don't try to close the scorefile if it isn't open. The MSVC library uses a debug assertion to prevent closing file descriptors that are negative. This is always the case with the scoreboard file descriptor if the scoreboard has been compiled out.
author John "Elwin" Edwards
date Fri, 31 Jul 2015 20:12:33 -0400
parents 84651832f967
children 0250220d8cdd
line wrap: on
line source

/*
 * Functions for dealing with problems brought about by weapons
 *
 * @(#)weapons.c	3.17 (Berkeley) 6/15/81
 *
 * 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 "curses.h"
#include <ctype.h>
#include <string.h>
#include "rogue.h"

#define NONE 100

char *w_names[MAXWEAPONS] = {
    "mace",
    "long sword",
    "short bow",
    "arrow",
    "dagger",
    "rock",
    "two handed sword",
    "sling",
    "dart",
    "crossbow",
    "crossbow bolt",
    "spear",
};

static struct init_weps {
    char *iw_dam;
    char *iw_hrl;
    int iw_launch;
    int iw_flags;
} init_dam[MAXWEAPONS] = {
    "2d4", "1d3", NONE, 0,		/* Mace */
    "1d10", "1d2", NONE,0,		/* Long sword */
    "1d1", "1d1", NONE,	0,		/* Bow */
    "1d1", "1d6", BOW,	ISMANY|ISMISL,	/* Arrow */
    "1d6", "1d4", NONE,	ISMISL,		/* Dagger */
    "1d2", "1d4", SLING,ISMANY|ISMISL,	/* Rock */
    "3d6", "1d2", NONE,	0,		/* 2h sword */
    "0d0", "0d0", NONE, 0,		/* Sling */
    "1d1", "1d3", NONE,	ISMANY|ISMISL,	/* Dart */
    "1d1", "1d1", NONE, 0,		/* Crossbow */
    "1d2", "1d10", CROSSBOW, ISMANY|ISMISL,/* Crossbow bolt */
    "1d8", "1d6", NONE, ISMISL,		/* Spear */
};

/*
 * missile:
 *	Fire a missile in a given direction
 */

void
missile(int ydelta, int xdelta)
{
    struct object *obj;
    struct linked_list *item, *nitem;

    /*
     * Get which thing we are hurling
     */
    if ((item = get_item("throw", WEAPON)) == NULL)
	return;
    obj = (struct object *) ldata(item);
    if (!dropcheck(obj) || is_current(obj))
	return;
    /*
     * Get rid of the thing.  If it is a non-multiple item object, or
     * if it is the last thing, just drop it.  Otherwise, create a new
     * item with a count of one.
     */
    if (obj->o_count < 2)
    {
	detach(pack, item);
	inpack--;
    }
    else
    {
	obj->o_count--;
	if (obj->o_group == 0)
	    inpack--;
	nitem = (struct linked_list *) new_item(sizeof *obj);
	obj = (struct object *) ldata(nitem);
	*obj = *((struct object *) ldata(item));
	obj->o_count = 1;
	item = nitem;
    }
    do_motion(obj, ydelta, xdelta);
    /*
     * AHA! Here it has hit something.  If it is a wall or a door,
     * or if it misses (combat) the mosnter, put it on the floor
     */
    if (!isupper(mvwinch(mw, obj->o_pos.y, obj->o_pos.x))
	|| !hit_monster(unc(obj->o_pos), obj))
	    fall(item, TRUE);
    mvwaddch(cw, hero.y, hero.x, PLAYER);
}

/*
 * 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)) &&
	    mvwinch(cw, obj->o_pos.y, obj->o_pos.x) != ' ')
		    mvwaddch(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)) &&
		mvwinch(cw, obj->o_pos.y, obj->o_pos.x) != ' ')
	    {
		mvwaddch(cw, obj->o_pos.y, obj->o_pos.x, obj->o_type);
		draw(cw);
	    }
	    continue;
	}
	break;
    }
}

/*
 * fall:
 *	Drop an item someplace around here.
 */

void
fall(struct linked_list *item, int pr)
{
    struct object *obj;
    struct room *rp;
    static coord fpos;

    obj = (struct object *) ldata(item);
    if (fallpos(&obj->o_pos, &fpos, TRUE))
    {
	mvaddch(fpos.y, fpos.x, obj->o_type);
	obj->o_pos = fpos;
	if ((rp = roomin(&hero)) != NULL && !(rp->r_flags & ISDARK))
	{
	    light(&hero);
	    mvwaddch(cw, hero.y, hero.x, PLAYER);
	}
	attach(lvl_obj, item);
	return;
    }
    if (pr)
        if (obj->o_type == WEAPON) /* BUGFUX: Identification trick */
            msg("Your %s vanishes as it hits the ground.", w_names[obj->o_which]);
        else
            msg("%s vanishes as it hits the ground.", inv_name(obj,TRUE));
    discard(item);
}

/*
 * init_weapon:
 *	Set up the initial goodies for a weapon
 */

void
init_weapon(struct object *weap, int type)
{
    struct init_weps *iwp;

    iwp = &init_dam[type];
    strcpy(weap->o_damage,iwp->iw_dam);
    strcpy(weap->o_hurldmg,iwp->iw_hrl);
    weap->o_launch = iwp->iw_launch;
    weap->o_flags = iwp->iw_flags;
    if (weap->o_flags & ISMANY)
    {
	weap->o_count = rnd(8) + 8;
	weap->o_group = newgrp();
    }
    else
	weap->o_count = 1;
}

/*
 * Does the missile hit the monster
 */

int
hit_monster(int y, int x, struct object *obj)
{
    static coord mp;

    mp.y = y;
    mp.x = x;
    return fight(&mp, winat(y, x), obj, TRUE);
}

/*
 * num:
 *	Figure out the plus number for armor/weapons
 */

char *
num(int n1, int n2)
{
    static char numbuf[80];

    if (n1 == 0 && n2 == 0)
	return "+0";
    if (n2 == 0)
	sprintf(numbuf, "%s%d", n1 < 0 ? "" : "+", n1);
    else
        sprintf(numbuf, "%s%d,%s%d",
				n1 < 0 ? "" : "+", n1, n2 < 0 ? "" : "+", n2);
    return numbuf;
}    

/*
 * wield:
 *	Pull out a certain weapon
 */

void
wield()
{
    struct linked_list *item;
    struct object *obj, *oweapon;

    oweapon = cur_weapon;
    if (!dropcheck(cur_weapon))
    {
	cur_weapon = oweapon;
	return;
    }
    cur_weapon = oweapon;
    if ((item = get_item("wield", WEAPON)) == NULL)
    {
bad:
	after = FALSE;
	return;
    }

    obj = (struct object *) ldata(item);
    if (obj->o_type == ARMOR)
    {
	msg("You can't wield armor");
	goto bad;
    }
    if (is_current(obj))
        goto bad;

    if (terse)
	addmsg("W");
    else
	addmsg("You are now w");
    msg("ielding %s", inv_name(obj, TRUE));
    cur_weapon = obj;
}

/*
 * pick a random position around the give (y, x) coordinates
 */
int
fallpos(coord *pos, coord *newpos, int passages)
{
    int y, x, cnt, ch;

    cnt = 0;
    for (y = pos->y - 1; y <= pos->y + 1; y++)
	for (x = pos->x - 1; x <= pos->x + 1; x++)
	{
	    /*
	     * check to make certain the spot is empty, if it is,
	     * put the object there, set it in the level list
	     * and re-draw the room if he can see it
	     */
	    if (y == hero.y && x == hero.x)
		continue;
	    if (((ch = winat(y, x)) == FLOOR || (passages && ch == PASSAGE))
					&& rnd(++cnt) == 0)
	    {
		newpos->y = y;
		newpos->x = x;
	    }
	}
    return (cnt != 0);
}