2 * Copyright (c) 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
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9 * modification, are permitted provided that the following conditions
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12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
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15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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32 * @(#)pack.c 8.1 (Berkeley) 5/31/93
33 * $FreeBSD: src/games/rogue/pack.c,v 1.8 1999/11/30 03:49:25 billf Exp $
39 * This source herein may be modified and/or distributed by anybody who
40 * so desires, with the following restrictions:
41 * 1.) No portion of this notice shall be removed.
42 * 2.) Credit shall not be taken for the creation of this source.
43 * 3.) This code is not to be traded, sold, or used for personal
51 const char curse_message[] = "you can't, it appears to be cursed";
53 static object *check_duplicate(object *, object *);
54 static boolean is_pack_letter(short *, unsigned short *);
55 static boolean mask_pack(const object *, unsigned short);
56 static int next_avail_ichar(void);
59 add_to_pack(object *obj, object *pack, int condense)
64 if ((op = check_duplicate(obj, pack)) != NULL) {
68 obj->ichar = next_avail_ichar();
71 if (pack->next_object == 0) {
72 pack->next_object = obj;
74 op = pack->next_object;
76 while (op->next_object) {
79 op->next_object = obj;
86 take_from_pack(object *obj, object *pack)
88 while (pack->next_object != obj) {
89 pack = pack->next_object;
91 pack->next_object = pack->next_object->next_object;
94 /* Note: *status is set to 0 if the rogue attempts to pick up a scroll
95 * of scare-monster and it turns to dust. *status is otherwise set to 1.
99 pick_up(int row, int col, short *status)
106 message("you're floating in the air!", 0);
109 obj = object_at(&level_objects, row, col);
111 message("pick_up(): inconsistent", 1);
114 if ( (obj->what_is == SCROL) &&
115 (obj->which_kind == SCARE_MONSTER) &&
117 message("the scroll turns to dust as you pick it up", 0);
118 dungeon[row][col] &= (~OBJECT);
119 vanish(obj, 0, &level_objects);
121 if (id_scrolls[SCARE_MONSTER].id_status == UNIDENTIFIED) {
122 id_scrolls[SCARE_MONSTER].id_status = IDENTIFIED;
126 if (obj->what_is == GOLD) {
127 rogue.gold += obj->quantity;
128 dungeon[row][col] &= ~(OBJECT);
129 take_from_pack(obj, &level_objects);
130 print_stats(STAT_GOLD);
131 return(obj); /* obj will be free_object()ed in caller */
133 if (pack_count(obj) >= MAX_PACK_COUNT) {
134 message("pack too full", 1);
137 dungeon[row][col] &= ~(OBJECT);
138 take_from_pack(obj, &level_objects);
139 obj = add_to_pack(obj, &rogue.pack, 1);
151 if (dungeon[rogue.row][rogue.col] & (OBJECT | STAIRS | TRAP)) {
152 message("there's already something there", 0);
155 if (!rogue.pack.next_object) {
156 message("you have nothing to drop", 0);
159 if ((ch = pack_letter("drop what?", ALL_OBJECTS)) == CANCEL) {
162 if (!(obj = get_letter_object(ch))) {
163 message("no such item.", 0);
166 if (obj->in_use_flags & BEING_WIELDED) {
167 if (obj->is_cursed) {
168 message(curse_message, 0);
171 unwield(rogue.weapon);
172 } else if (obj->in_use_flags & BEING_WORN) {
173 if (obj->is_cursed) {
174 message(curse_message, 0);
179 print_stats(STAT_ARMOR);
180 } else if (obj->in_use_flags & ON_EITHER_HAND) {
181 if (obj->is_cursed) {
182 message(curse_message, 0);
187 obj->row = rogue.row;
188 obj->col = rogue.col;
190 if ((obj->quantity > 1) && (obj->what_is != WEAPON)) {
192 new = alloc_object();
198 take_from_pack(obj, &rogue.pack);
200 place_at(obj, rogue.row, rogue.col);
201 strcpy(desc, "dropped ");
202 get_desc(obj, desc + 8);
208 check_duplicate(object *obj, object *pack)
212 if (!(obj->what_is & (WEAPON | FOOD | SCROL | POTION))) {
215 if ((obj->what_is == FOOD) && (obj->which_kind == FRUIT)) {
218 op = pack->next_object;
221 if ((op->what_is == obj->what_is) &&
222 (op->which_kind == obj->which_kind)) {
224 if ((obj->what_is != WEAPON) ||
225 ((obj->what_is == WEAPON) &&
226 ((obj->which_kind == ARROW) ||
227 (obj->which_kind == DAGGER) ||
228 (obj->which_kind == DART) ||
229 (obj->which_kind == SHURIKEN)) &&
230 (obj->quiver == op->quiver))) {
231 op->quantity += obj->quantity;
235 op = op->next_object;
241 next_avail_ichar(void)
247 for (i = 0; i < 26; i++) {
250 obj = rogue.pack.next_object;
252 if (obj->ichar >= 'a' && obj->ichar <= 'z') {
253 ichars[(obj->ichar - 'a')] = 1;
255 obj = obj->next_object;
257 for (i = 0; i < 26; i++) {
268 if (!isatty(0) || !isatty(1))
270 while (rgetchar() != ' ')
275 pack_letter(const char *prompt, unsigned short mask)
278 unsigned short tmask = mask;
280 if (!mask_pack(&rogue.pack, mask)) {
281 message("nothing appropriate", 0);
290 if (!is_pack_letter(&ch, &mask)) {
300 inventory(&rogue.pack, mask);
317 if (rogue.armor->is_cursed) {
318 message(curse_message, 0);
323 strcpy(desc, "was wearing ");
324 get_desc(obj, desc+12);
326 print_stats(STAT_ARMOR);
330 message("not wearing any", 0);
342 message("you're already wearing some", 0);
345 ch = pack_letter("wear what?", ARMOR);
350 if (!(obj = get_letter_object(ch))) {
351 message("no such item.", 0);
354 if (obj->what_is != ARMOR) {
355 message("you can't wear that", 0);
359 strcpy(desc, "wearing ");
360 get_desc(obj, desc + 8);
363 print_stats(STAT_ARMOR);
371 obj->in_use_flags &= (~BEING_WORN);
380 obj->in_use_flags |= BEING_WORN;
391 if (rogue.weapon && rogue.weapon->is_cursed) {
392 message(curse_message, 0);
395 ch = pack_letter("wield what?", WEAPON);
400 if (!(obj = get_letter_object(ch))) {
401 message("No such item.", 0);
404 if (obj->what_is & (ARMOR | RING)) {
405 sprintf(desc, "you can't wield %s",
406 ((obj->what_is == ARMOR) ? "armor" : "rings"));
410 if (obj->in_use_flags & BEING_WIELDED) {
411 message("in use", 0);
413 unwield(rogue.weapon);
414 strcpy(desc, "wielding ");
415 get_desc(obj, desc + 9);
423 do_wield(object *obj)
426 obj->in_use_flags |= BEING_WIELDED;
433 obj->in_use_flags &= (~BEING_WIELDED);
444 char buf[MAX_TITLE_LENGTH+2];
446 ch = pack_letter("call what?", (SCROL | POTION | WAND | RING));
451 if (!(obj = get_letter_object(ch))) {
452 message("no such item.", 0);
455 if (!(obj->what_is & (SCROL | POTION | WAND | RING))) {
456 message("surely you already know what that's called", 0);
459 id_table = get_id_table(obj);
461 if (get_input_line("call it:","",buf,id_table[obj->which_kind].title,1,1)) {
462 id_table[obj->which_kind].id_status = CALLED;
463 strcpy(id_table[obj->which_kind].title, buf);
468 pack_count(const object *new_obj)
473 obj = rogue.pack.next_object;
476 if (obj->what_is != WEAPON) {
477 count += obj->quantity;
478 } else if (!new_obj) {
480 } else if ((new_obj->what_is != WEAPON) ||
481 ((obj->which_kind != ARROW) &&
482 (obj->which_kind != DAGGER) &&
483 (obj->which_kind != DART) &&
484 (obj->which_kind != SHURIKEN)) ||
485 (new_obj->which_kind != obj->which_kind) ||
486 (obj->quiver != new_obj->quiver)) {
489 obj = obj->next_object;
495 mask_pack(const object *pack, unsigned short mask)
497 while (pack->next_object) {
498 pack = pack->next_object;
499 if (pack->what_is & mask) {
507 is_pack_letter(short *c, unsigned short *mask)
509 if (((*c == '?') || (*c == '!') || (*c == ':') || (*c == '=') ||
510 (*c == ')') || (*c == ']') || (*c == '/') || (*c == ','))) {
540 return(((*c >= 'a') && (*c <= 'z')) || (*c == CANCEL) || (*c == LIST));
546 return(mask_pack(&rogue.pack, AMULET));
556 if (!(dungeon[rogue.row][rogue.col] & OBJECT)) {
557 message("nothing here", 0);
559 if ((obj = pick_up(rogue.row, rogue.col, &stat)) != NULL) {
561 if (obj->what_is == GOLD) {
567 desc[n+1] = obj->ichar;
573 if (obj || (!stat)) {