1/*	$NetBSD: hack.wield.c,v 1.7 2009/06/07 18:30:39 dholland Exp $	*/
2
3/*
4 * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
5 * Amsterdam
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
10 * met:
11 *
12 * - Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
14 *
15 * - Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * - Neither the name of the Stichting Centrum voor Wiskunde en
20 * Informatica, nor the names of its contributors may be used to endorse or
21 * promote products derived from this software without specific prior
22 * written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
25 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
27 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
28 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
30 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
31 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
32 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
33 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
34 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 */
36
37/*
38 * Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
39 * All rights reserved.
40 *
41 * Redistribution and use in source and binary forms, with or without
42 * modification, are permitted provided that the following conditions
43 * are met:
44 * 1. Redistributions of source code must retain the above copyright
45 *    notice, this list of conditions and the following disclaimer.
46 * 2. Redistributions in binary form must reproduce the above copyright
47 *    notice, this list of conditions and the following disclaimer in the
48 *    documentation and/or other materials provided with the distribution.
49 * 3. The name of the author may not be used to endorse or promote products
50 *    derived from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
53 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
54 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
55 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
56 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
57 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
58 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
59 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
60 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
61 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 */
63
64#include <sys/cdefs.h>
65#ifndef lint
66__RCSID("$NetBSD: hack.wield.c,v 1.7 2009/06/07 18:30:39 dholland Exp $");
67#endif				/* not lint */
68
69#include "hack.h"
70#include "extern.h"
71
72void
73setuwep(struct obj *obj)
74{
75	setworn(obj, W_WEP);
76}
77
78int
79dowield(void)
80{
81	struct obj     *wep;
82	int             res = 0;
83
84	multi = 0;
85	if (!(wep = getobj("#-)", "wield")))	/* nothing */
86		;
87	else if (uwep == wep)
88		pline("You are already wielding that!");
89	else if (uwep && uwep->cursed)
90		pline("The %s welded to your hand!",
91		      aobjnam(uwep, "are"));
92	else if (wep == &zeroobj) {
93		if (uwep == 0) {
94			pline("You are already empty handed.");
95		} else {
96			setuwep((struct obj *) 0);
97			res++;
98			pline("You are empty handed.");
99		}
100	} else if (uarms && wep->otyp == TWO_HANDED_SWORD)
101		pline("You cannot wield a two-handed sword and wear a shield.");
102	else if (wep->owornmask & (W_ARMOR | W_RING))
103		pline("You cannot wield that!");
104	else {
105		setuwep(wep);
106		res++;
107		if (uwep->cursed)
108			pline("The %s %s to your hand!",
109			      aobjnam(uwep, "weld"),
110			      (uwep->quan == 1) ? "itself" : "themselves");	/* a3 */
111		else
112			prinv(uwep);
113	}
114	return (res);
115}
116
117void
118corrode_weapon(void)
119{
120	if (!uwep || uwep->olet != WEAPON_SYM)
121		return;		/* %% */
122	if (uwep->rustfree)
123		pline("Your %s not affected.", aobjnam(uwep, "are"));
124	else {
125		pline("Your %s!", aobjnam(uwep, "corrode"));
126		uwep->spe--;
127	}
128}
129
130int
131chwepon(struct obj *otmp, int amount)
132{
133	const char *color = (amount < 0) ? "black" : "green";
134	const char *stime;
135	if (!uwep || uwep->olet != WEAPON_SYM) {
136		strange_feeling(otmp,
137				(amount > 0) ? "Your hands twitch."
138				: "Your hands itch.");
139		return (0);
140	}
141	if (uwep->otyp == WORM_TOOTH && amount > 0) {
142		uwep->otyp = CRYSKNIFE;
143		pline("Your weapon seems sharper now.");
144		uwep->cursed = 0;
145		return (1);
146	}
147	if (uwep->otyp == CRYSKNIFE && amount < 0) {
148		uwep->otyp = WORM_TOOTH;
149		pline("Your weapon looks duller now.");
150		return (1);
151	}
152	/* there is a (soft) upper limit to uwep->spe */
153	if (amount > 0 && uwep->spe > 5 && rn2(3)) {
154		pline("Your %s violently green for a while and then evaporate%s.",
155		      aobjnam(uwep, "glow"), plur(uwep->quan));
156		while (uwep)	/* let all of them disappear */
157			/* note: uwep->quan = 1 is nogood if unpaid */
158			useup(uwep);
159		return (1);
160	}
161	if (!rn2(6))
162		amount *= 2;
163	stime = (amount * amount == 1) ? "moment" : "while";
164	pline("Your %s %s for a %s.",
165	      aobjnam(uwep, "glow"), color, stime);
166	uwep->spe += amount;
167	if (amount > 0)
168		uwep->cursed = 0;
169	return (1);
170}
171