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      1 /*	$NetBSD: hack.do_wear.c,v 1.7 2009/08/12 07:28:40 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 (at) 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.do_wear.c,v 1.7 2009/08/12 07:28:40 dholland Exp $");
     67 #endif				/* not lint */
     68 
     69 #include "hack.h"
     70 #include "extern.h"
     71 
     72 static int dorr(struct obj *);
     73 static int cursed(struct obj *);
     74 
     75 static void
     76 off_msg(struct obj *otmp)
     77 {
     78 	pline("You were wearing %s.", doname(otmp));
     79 }
     80 
     81 int
     82 doremarm(void)
     83 {
     84 	struct obj     *otmp;
     85 	if (!uarm && !uarmh && !uarms && !uarmg) {
     86 		pline("Not wearing any armor.");
     87 		return (0);
     88 	}
     89 	otmp = (!uarmh && !uarms && !uarmg) ? uarm :
     90 		(!uarms && !uarm && !uarmg) ? uarmh :
     91 		(!uarmh && !uarm && !uarmg) ? uarms :
     92 		(!uarmh && !uarm && !uarms) ? uarmg :
     93 		getobj("[", "take off");
     94 	if (!otmp)
     95 		return (0);
     96 	if (!(otmp->owornmask & (W_ARMOR - W_ARM2))) {
     97 		pline("You can't take that off.");
     98 		return (0);
     99 	}
    100 	if (otmp == uarmg && uwep && uwep->cursed) {	/* myers@uwmacc */
    101 		pline("You seem not able to take off the gloves while holding your weapon.");
    102 		return (0);
    103 	}
    104 	(void) armoroff(otmp);
    105 	return (1);
    106 }
    107 
    108 int
    109 doremring(void)
    110 {
    111 	if (!uleft && !uright) {
    112 		pline("Not wearing any ring.");
    113 		return (0);
    114 	}
    115 	if (!uleft)
    116 		return (dorr(uright));
    117 	if (!uright)
    118 		return (dorr(uleft));
    119 	if (uleft && uright)
    120 		while (1) {
    121 			char            answer;
    122 
    123 			pline("What ring, Right or Left? [ rl?]");
    124 			if (strchr(quitchars, (answer = readchar())))
    125 				return (0);
    126 			switch (answer) {
    127 			case 'l':
    128 			case 'L':
    129 				return (dorr(uleft));
    130 			case 'r':
    131 			case 'R':
    132 				return (dorr(uright));
    133 			case '?':
    134 				(void) doprring();
    135 				/* might look at morc here %% */
    136 			}
    137 		}
    138 	/* NOTREACHED */
    139 	return (0);
    140 }
    141 
    142 static int
    143 dorr(struct obj *otmp)
    144 {
    145 	if (cursed(otmp))
    146 		return (0);
    147 	ringoff(otmp);
    148 	off_msg(otmp);
    149 	return (1);
    150 }
    151 
    152 static int
    153 cursed(struct obj *otmp)
    154 {
    155 	if (otmp->cursed) {
    156 		pline("You can't. It appears to be cursed.");
    157 		return (1);
    158 	}
    159 	return (0);
    160 }
    161 
    162 int
    163 armoroff(struct obj *otmp)
    164 {
    165 	int             delay = -objects[otmp->otyp].oc_delay;
    166 	if (cursed(otmp))
    167 		return (0);
    168 	setworn((struct obj *) 0, otmp->owornmask & W_ARMOR);
    169 	if (delay) {
    170 		nomul(delay);
    171 		switch (otmp->otyp) {
    172 		case HELMET:
    173 			nomovemsg = "You finished taking off your helmet.";
    174 			break;
    175 		case PAIR_OF_GLOVES:
    176 			nomovemsg = "You finished taking off your gloves";
    177 			break;
    178 		default:
    179 			nomovemsg = "You finished taking off your suit.";
    180 		}
    181 	} else {
    182 		off_msg(otmp);
    183 	}
    184 	return (1);
    185 }
    186 
    187 int
    188 doweararm(void)
    189 {
    190 	struct obj     *otmp;
    191 	int             delay;
    192 	int             err = 0;
    193 	long            mask = 0;
    194 
    195 	otmp = getobj("[", "wear");
    196 	if (!otmp)
    197 		return (0);
    198 	if (otmp->owornmask & W_ARMOR) {
    199 		pline("You are already wearing that!");
    200 		return (0);
    201 	}
    202 	if (otmp->otyp == HELMET) {
    203 		if (uarmh) {
    204 			pline("You are already wearing a helmet.");
    205 			err++;
    206 		} else
    207 			mask = W_ARMH;
    208 	} else if (otmp->otyp == SHIELD) {
    209 		if (uarms)
    210 			pline("You are already wearing a shield."), err++;
    211 		if (uwep && uwep->otyp == TWO_HANDED_SWORD)
    212 			pline("You cannot wear a shield and wield a two-handed sword."), err++;
    213 		if (!err)
    214 			mask = W_ARMS;
    215 	} else if (otmp->otyp == PAIR_OF_GLOVES) {
    216 		if (uarmg) {
    217 			pline("You are already wearing gloves.");
    218 			err++;
    219 		} else if (uwep && uwep->cursed) {
    220 			pline("You cannot wear gloves over your weapon.");
    221 			err++;
    222 		} else
    223 			mask = W_ARMG;
    224 	} else {
    225 		if (uarm) {
    226 			if (otmp->otyp != ELVEN_CLOAK || uarm2) {
    227 				pline("You are already wearing some armor.");
    228 				err++;
    229 			}
    230 		}
    231 		if (!err)
    232 			mask = W_ARM;
    233 	}
    234 	if (otmp == uwep && uwep->cursed) {
    235 		if (!err++)
    236 			pline("%s is welded to your hand.", Doname(uwep));
    237 	}
    238 	if (err)
    239 		return (0);
    240 	setworn(otmp, mask);
    241 	if (otmp == uwep)
    242 		setuwep((struct obj *) 0);
    243 	delay = -objects[otmp->otyp].oc_delay;
    244 	if (delay) {
    245 		nomul(delay);
    246 		nomovemsg = "You finished your dressing manoeuvre.";
    247 	}
    248 	otmp->known = 1;
    249 	return (1);
    250 }
    251 
    252 int
    253 dowearring(void)
    254 {
    255 	struct obj     *otmp;
    256 	long            mask = 0;
    257 	long            oldprop;
    258 
    259 	if (uleft && uright) {
    260 		pline("There are no more ring-fingers to fill.");
    261 		return (0);
    262 	}
    263 	otmp = getobj("=", "wear");
    264 	if (!otmp)
    265 		return (0);
    266 	if (otmp->owornmask & W_RING) {
    267 		pline("You are already wearing that!");
    268 		return (0);
    269 	}
    270 	if (otmp == uleft || otmp == uright) {
    271 		pline("You are already wearing that.");
    272 		return (0);
    273 	}
    274 	if (otmp == uwep && uwep->cursed) {
    275 		pline("%s is welded to your hand.", Doname(uwep));
    276 		return (0);
    277 	}
    278 	if (uleft)
    279 		mask = RIGHT_RING;
    280 	else if (uright)
    281 		mask = LEFT_RING;
    282 	else
    283 		do {
    284 			char            answer;
    285 
    286 			pline("What ring-finger, Right or Left? ");
    287 			if (strchr(quitchars, (answer = readchar())))
    288 				return (0);
    289 			switch (answer) {
    290 			case 'l':
    291 			case 'L':
    292 				mask = LEFT_RING;
    293 				break;
    294 			case 'r':
    295 			case 'R':
    296 				mask = RIGHT_RING;
    297 				break;
    298 			}
    299 		} while (!mask);
    300 	setworn(otmp, mask);
    301 	if (otmp == uwep)
    302 		setuwep((struct obj *) 0);
    303 	oldprop = u.uprops[PROP(otmp->otyp)].p_flgs;
    304 	u.uprops[PROP(otmp->otyp)].p_flgs |= mask;
    305 	switch (otmp->otyp) {
    306 	case RIN_LEVITATION:
    307 		if (!oldprop)
    308 			float_up();
    309 		break;
    310 	case RIN_PROTECTION_FROM_SHAPE_CHANGERS:
    311 		rescham();
    312 		break;
    313 	case RIN_GAIN_STRENGTH:
    314 		u.ustr += otmp->spe;
    315 		u.ustrmax += otmp->spe;
    316 		if (u.ustr > 118)
    317 			u.ustr = 118;
    318 		if (u.ustrmax > 118)
    319 			u.ustrmax = 118;
    320 		flags.botl = 1;
    321 		break;
    322 	case RIN_INCREASE_DAMAGE:
    323 		u.udaminc += otmp->spe;
    324 		break;
    325 	}
    326 	prinv(otmp);
    327 	return (1);
    328 }
    329 
    330 void
    331 ringoff(struct obj *obj)
    332 {
    333 	long            mask;
    334 	mask = obj->owornmask & W_RING;
    335 	setworn((struct obj *) 0, obj->owornmask);
    336 	if (!(u.uprops[PROP(obj->otyp)].p_flgs & mask))
    337 		impossible("Strange... I didnt know you had that ring.");
    338 	u.uprops[PROP(obj->otyp)].p_flgs &= ~mask;
    339 	switch (obj->otyp) {
    340 	case RIN_FIRE_RESISTANCE:
    341 		/* Bad luck if the player is in hell... --jgm */
    342 		if (!Fire_resistance && dlevel >= 30) {
    343 			pline("The flames of Hell burn you to a crisp.");
    344 			killer = "stupidity in hell";
    345 			done("burned");
    346 		}
    347 		break;
    348 	case RIN_LEVITATION:
    349 		if (!Levitation) {	/* no longer floating */
    350 			float_down();
    351 		}
    352 		break;
    353 	case RIN_GAIN_STRENGTH:
    354 		u.ustr -= obj->spe;
    355 		u.ustrmax -= obj->spe;
    356 		if (u.ustr > 118)
    357 			u.ustr = 118;
    358 		if (u.ustrmax > 118)
    359 			u.ustrmax = 118;
    360 		flags.botl = 1;
    361 		break;
    362 	case RIN_INCREASE_DAMAGE:
    363 		u.udaminc -= obj->spe;
    364 		break;
    365 	}
    366 }
    367 
    368 void
    369 find_ac(void)
    370 {
    371 	int             uac = 10;
    372 	if (uarm)
    373 		uac -= ARM_BONUS(uarm);
    374 	if (uarm2)
    375 		uac -= ARM_BONUS(uarm2);
    376 	if (uarmh)
    377 		uac -= ARM_BONUS(uarmh);
    378 	if (uarms)
    379 		uac -= ARM_BONUS(uarms);
    380 	if (uarmg)
    381 		uac -= ARM_BONUS(uarmg);
    382 	if (uleft && uleft->otyp == RIN_PROTECTION)
    383 		uac -= uleft->spe;
    384 	if (uright && uright->otyp == RIN_PROTECTION)
    385 		uac -= uright->spe;
    386 	if (uac != u.uac) {
    387 		u.uac = uac;
    388 		flags.botl = 1;
    389 	}
    390 }
    391 
    392 void
    393 glibr(void)
    394 {
    395 	struct obj     *otmp;
    396 	int             xfl = 0;
    397 	if (!uarmg)
    398 		if (uleft || uright) {
    399 			/* Note: at present also cursed rings fall off */
    400 			pline("Your %s off your fingers.",
    401 			   (uleft && uright) ? "rings slip" : "ring slips");
    402 			xfl++;
    403 			if ((otmp = uleft) != Null(obj)) {
    404 				ringoff(uleft);
    405 				dropx(otmp);
    406 			}
    407 			if ((otmp = uright) != Null(obj)) {
    408 				ringoff(uright);
    409 				dropx(otmp);
    410 			}
    411 		}
    412 	if ((otmp = uwep) != Null(obj)) {
    413 		/* Note: at present also cursed weapons fall */
    414 		setuwep((struct obj *) 0);
    415 		dropx(otmp);
    416 		pline("Your weapon %sslips from your hands.",
    417 		      xfl ? "also " : "");
    418 	}
    419 }
    420 
    421 struct obj     *
    422 some_armor(void)
    423 {
    424 	struct obj     *otmph = uarm;
    425 	if (uarmh && (!otmph || !rn2(4)))
    426 		otmph = uarmh;
    427 	if (uarmg && (!otmph || !rn2(4)))
    428 		otmph = uarmg;
    429 	if (uarms && (!otmph || !rn2(4)))
    430 		otmph = uarms;
    431 	return (otmph);
    432 }
    433 
    434 void
    435 corrode_armor(void)
    436 {
    437 	struct obj     *otmph = some_armor();
    438 	if (otmph) {
    439 		if (otmph->rustfree ||
    440 		    otmph->otyp == ELVEN_CLOAK ||
    441 		    otmph->otyp == LEATHER_ARMOR ||
    442 		    otmph->otyp == STUDDED_LEATHER_ARMOR) {
    443 			pline("Your %s not affected!",
    444 			      aobjnam(otmph, "are"));
    445 			return;
    446 		}
    447 		pline("Your %s!", aobjnam(otmph, "corrode"));
    448 		otmph->spe--;
    449 	}
    450 }
    451