xref: /netbsd/games/hack/hack.wield.c (revision 6550d01e)
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 
72 void
73 setuwep(struct obj *obj)
74 {
75 	setworn(obj, W_WEP);
76 }
77 
78 int
79 dowield(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 
117 void
118 corrode_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 
130 int
131 chwepon(struct obj *otmp, int amount)
132 {
133 	const char *color = (amount < 0) ? "black" : "green";
134 	const char *time;
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 	time = (amount * amount == 1) ? "moment" : "while";
164 	pline("Your %s %s for a %s.",
165 	      aobjnam(uwep, "glow"), color, time);
166 	uwep->spe += amount;
167 	if (amount > 0)
168 		uwep->cursed = 0;
169 	return (1);
170 }
171