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1 | /* |
2 | * Copyright (c) 1988 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * This code is derived from software contributed to Berkeley by | |
6 | * Timothy C. Stoehr. | |
7 | * | |
b2e7427f | 8 | * %sccs.include.redist.c% |
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9 | */ |
10 | ||
11 | #ifndef lint | |
b2e7427f | 12 | static char sccsid[] = "@(#)pack.c 5.3 (Berkeley) %G%"; |
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13 | #endif /* not lint */ |
14 | ||
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15 | /* |
16 | * pack.c | |
17 | * | |
18 | * This source herein may be modified and/or distributed by anybody who | |
19 | * so desires, with the following restrictions: | |
20 | * 1.) No portion of this notice shall be removed. | |
21 | * 2.) Credit shall not be taken for the creation of this source. | |
22 | * 3.) This code is not to be traded, sold, or used for personal | |
23 | * gain or profit. | |
24 | * | |
25 | */ | |
26 | ||
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27 | #include "rogue.h" |
28 | ||
29 | char *curse_message = "you can't, it appears to be cursed"; | |
30 | ||
31 | extern short levitate; | |
32 | ||
33 | object * | |
34 | add_to_pack(obj, pack, condense) | |
35 | object *obj, *pack; | |
36 | { | |
37 | object *op; | |
38 | ||
39 | if (condense) { | |
40 | if (op = check_duplicate(obj, pack)) { | |
41 | free_object(obj); | |
42 | return(op); | |
43 | } else { | |
44 | obj->ichar = next_avail_ichar(); | |
45 | } | |
46 | } | |
47 | if (pack->next_object == 0) { | |
48 | pack->next_object = obj; | |
49 | } else { | |
50 | op = pack->next_object; | |
51 | ||
52 | while (op->next_object) { | |
53 | op = op->next_object; | |
54 | } | |
55 | op->next_object = obj; | |
56 | } | |
57 | obj->next_object = 0; | |
58 | return(obj); | |
59 | } | |
60 | ||
61 | take_from_pack(obj, pack) | |
62 | object *obj, *pack; | |
63 | { | |
64 | while (pack->next_object != obj) { | |
65 | pack = pack->next_object; | |
66 | } | |
67 | pack->next_object = pack->next_object->next_object; | |
68 | } | |
69 | ||
70 | /* Note: *status is set to 0 if the rogue attempts to pick up a scroll | |
71 | * of scare-monster and it turns to dust. *status is otherwise set to 1. | |
72 | */ | |
73 | ||
74 | object * | |
75 | pick_up(row, col, status) | |
76 | short *status; | |
77 | { | |
78 | object *obj; | |
79 | ||
80 | *status = 1; | |
81 | ||
82 | if (levitate) { | |
83 | message("you're floating in the air!", 0); | |
84 | return((object *) 0); | |
85 | } | |
86 | obj = object_at(&level_objects, row, col); | |
87 | if (!obj) { | |
88 | message("pick_up(): inconsistent", 1); | |
89 | return(obj); | |
90 | } | |
91 | if ( (obj->what_is == SCROL) && | |
92 | (obj->which_kind == SCARE_MONSTER) && | |
93 | obj->picked_up) { | |
94 | message("the scroll turns to dust as you pick it up", 0); | |
95 | dungeon[row][col] &= (~OBJECT); | |
96 | vanish(obj, 0, &level_objects); | |
97 | *status = 0; | |
98 | if (id_scrolls[SCARE_MONSTER].id_status == UNIDENTIFIED) { | |
99 | id_scrolls[SCARE_MONSTER].id_status = IDENTIFIED; | |
100 | } | |
101 | return((object *) 0); | |
102 | } | |
103 | if (obj->what_is == GOLD) { | |
104 | rogue.gold += obj->quantity; | |
105 | dungeon[row][col] &= ~(OBJECT); | |
106 | take_from_pack(obj, &level_objects); | |
107 | print_stats(STAT_GOLD); | |
108 | return(obj); /* obj will be free_object()ed in caller */ | |
109 | } | |
110 | if (pack_count(obj) >= MAX_PACK_COUNT) { | |
111 | message("pack too full", 1); | |
112 | return((object *) 0); | |
113 | } | |
114 | dungeon[row][col] &= ~(OBJECT); | |
115 | take_from_pack(obj, &level_objects); | |
116 | obj = add_to_pack(obj, &rogue.pack, 1); | |
117 | obj->picked_up = 1; | |
118 | return(obj); | |
119 | } | |
120 | ||
121 | drop() | |
122 | { | |
123 | object *obj, *new; | |
124 | short ch; | |
125 | char desc[DCOLS]; | |
126 | ||
127 | if (dungeon[rogue.row][rogue.col] & (OBJECT | STAIRS | TRAP)) { | |
128 | message("there's already something there", 0); | |
129 | return; | |
130 | } | |
131 | if (!rogue.pack.next_object) { | |
132 | message("you have nothing to drop", 0); | |
133 | return; | |
134 | } | |
135 | if ((ch = pack_letter("drop what?", ALL_OBJECTS)) == CANCEL) { | |
136 | return; | |
137 | } | |
138 | if (!(obj = get_letter_object(ch))) { | |
139 | message("no such item.", 0); | |
140 | return; | |
141 | } | |
142 | if (obj->in_use_flags & BEING_WIELDED) { | |
143 | if (obj->is_cursed) { | |
144 | message(curse_message, 0); | |
145 | return; | |
146 | } | |
147 | unwield(rogue.weapon); | |
148 | } else if (obj->in_use_flags & BEING_WORN) { | |
149 | if (obj->is_cursed) { | |
150 | message(curse_message, 0); | |
151 | return; | |
152 | } | |
153 | mv_aquatars(); | |
154 | unwear(rogue.armor); | |
155 | print_stats(STAT_ARMOR); | |
156 | } else if (obj->in_use_flags & ON_EITHER_HAND) { | |
157 | if (obj->is_cursed) { | |
158 | message(curse_message, 0); | |
159 | return; | |
160 | } | |
161 | un_put_on(obj); | |
162 | } | |
163 | obj->row = rogue.row; | |
164 | obj->col = rogue.col; | |
165 | ||
166 | if ((obj->quantity > 1) && (obj->what_is != WEAPON)) { | |
167 | obj->quantity--; | |
168 | new = alloc_object(); | |
169 | *new = *obj; | |
170 | new->quantity = 1; | |
171 | obj = new; | |
172 | } else { | |
173 | obj->ichar = 'L'; | |
174 | take_from_pack(obj, &rogue.pack); | |
175 | } | |
176 | place_at(obj, rogue.row, rogue.col); | |
177 | (void) strcpy(desc, "dropped "); | |
178 | get_desc(obj, desc+8); | |
179 | message(desc, 0); | |
180 | (void) reg_move(); | |
181 | } | |
182 | ||
183 | object * | |
184 | check_duplicate(obj, pack) | |
185 | object *obj, *pack; | |
186 | { | |
187 | object *op; | |
188 | ||
189 | if (!(obj->what_is & (WEAPON | FOOD | SCROL | POTION))) { | |
190 | return(0); | |
191 | } | |
192 | if ((obj->what_is == FOOD) && (obj->which_kind == FRUIT)) { | |
193 | return(0); | |
194 | } | |
195 | op = pack->next_object; | |
196 | ||
197 | while (op) { | |
198 | if ((op->what_is == obj->what_is) && | |
199 | (op->which_kind == obj->which_kind)) { | |
200 | ||
201 | if ((obj->what_is != WEAPON) || | |
202 | ((obj->what_is == WEAPON) && | |
203 | ((obj->which_kind == ARROW) || | |
204 | (obj->which_kind == DAGGER) || | |
205 | (obj->which_kind == DART) || | |
206 | (obj->which_kind == SHURIKEN)) && | |
207 | (obj->quiver == op->quiver))) { | |
208 | op->quantity += obj->quantity; | |
209 | return(op); | |
210 | } | |
211 | } | |
212 | op = op->next_object; | |
213 | } | |
214 | return(0); | |
215 | } | |
216 | ||
217 | next_avail_ichar() | |
218 | { | |
219 | register object *obj; | |
220 | register i; | |
221 | boolean ichars[26]; | |
222 | ||
223 | for (i = 0; i < 26; i++) { | |
224 | ichars[i] = 0; | |
225 | } | |
226 | obj = rogue.pack.next_object; | |
227 | while (obj) { | |
228 | ichars[(obj->ichar - 'a')] = 1; | |
229 | obj = obj->next_object; | |
230 | } | |
231 | for (i = 0; i < 26; i++) { | |
232 | if (!ichars[i]) { | |
233 | return(i + 'a'); | |
234 | } | |
235 | } | |
236 | return('?'); | |
237 | } | |
238 | ||
239 | wait_for_ack() | |
240 | { | |
241 | while (rgetchar() != ' ') ; | |
242 | } | |
243 | ||
244 | pack_letter(prompt, mask) | |
245 | char *prompt; | |
246 | unsigned short mask; | |
247 | { | |
248 | short ch; | |
249 | unsigned short tmask = mask; | |
250 | ||
251 | if (!mask_pack(&rogue.pack, mask)) { | |
252 | message("nothing appropriate", 0); | |
253 | return(CANCEL); | |
254 | } | |
255 | for (;;) { | |
256 | ||
257 | message(prompt, 0); | |
258 | ||
259 | for (;;) { | |
260 | ch = rgetchar(); | |
261 | if (!is_pack_letter(&ch, &mask)) { | |
262 | sound_bell(); | |
263 | } else { | |
264 | break; | |
265 | } | |
266 | } | |
267 | ||
268 | if (ch == LIST) { | |
269 | check_message(); | |
270 | inventory(&rogue.pack, mask); | |
271 | } else { | |
272 | break; | |
273 | } | |
274 | mask = tmask; | |
275 | } | |
276 | check_message(); | |
277 | return(ch); | |
278 | } | |
279 | ||
280 | take_off() | |
281 | { | |
282 | char desc[DCOLS]; | |
283 | object *obj; | |
284 | ||
285 | if (rogue.armor) { | |
286 | if (rogue.armor->is_cursed) { | |
287 | message(curse_message, 0); | |
288 | } else { | |
289 | mv_aquatars(); | |
290 | obj = rogue.armor; | |
291 | unwear(rogue.armor); | |
292 | (void) strcpy(desc, "was wearing "); | |
293 | get_desc(obj, desc+12); | |
294 | message(desc, 0); | |
295 | print_stats(STAT_ARMOR); | |
296 | (void) reg_move(); | |
297 | } | |
298 | } else { | |
299 | message("not wearing any", 0); | |
300 | } | |
301 | } | |
302 | ||
303 | wear() | |
304 | { | |
305 | short ch; | |
306 | register object *obj; | |
307 | char desc[DCOLS]; | |
308 | ||
309 | if (rogue.armor) { | |
310 | message("your already wearing some", 0); | |
311 | return; | |
312 | } | |
313 | ch = pack_letter("wear what?", ARMOR); | |
314 | ||
315 | if (ch == CANCEL) { | |
316 | return; | |
317 | } | |
318 | if (!(obj = get_letter_object(ch))) { | |
319 | message("no such item.", 0); | |
320 | return; | |
321 | } | |
322 | if (obj->what_is != ARMOR) { | |
323 | message("you can't wear that", 0); | |
324 | return; | |
325 | } | |
326 | obj->identified = 1; | |
327 | (void) strcpy(desc, "wearing "); | |
328 | get_desc(obj, desc + 8); | |
329 | message(desc, 0); | |
330 | do_wear(obj); | |
331 | print_stats(STAT_ARMOR); | |
332 | (void) reg_move(); | |
333 | } | |
334 | ||
335 | unwear(obj) | |
336 | object *obj; | |
337 | { | |
338 | if (obj) { | |
339 | obj->in_use_flags &= (~BEING_WORN); | |
340 | } | |
341 | rogue.armor = (object *) 0; | |
342 | } | |
343 | ||
344 | do_wear(obj) | |
345 | object *obj; | |
346 | { | |
347 | rogue.armor = obj; | |
348 | obj->in_use_flags |= BEING_WORN; | |
349 | obj->identified = 1; | |
350 | } | |
351 | ||
352 | wield() | |
353 | { | |
354 | short ch; | |
355 | register object *obj; | |
356 | char desc[DCOLS]; | |
357 | ||
358 | if (rogue.weapon && rogue.weapon->is_cursed) { | |
359 | message(curse_message, 0); | |
360 | return; | |
361 | } | |
362 | ch = pack_letter("wield what?", WEAPON); | |
363 | ||
364 | if (ch == CANCEL) { | |
365 | return; | |
366 | } | |
367 | if (!(obj = get_letter_object(ch))) { | |
368 | message("No such item.", 0); | |
369 | return; | |
370 | } | |
371 | if (obj->what_is & (ARMOR | RING)) { | |
372 | sprintf(desc, "you can't wield %s", | |
373 | ((obj->what_is == ARMOR) ? "armor" : "rings")); | |
374 | message(desc, 0); | |
375 | return; | |
376 | } | |
377 | if (obj->in_use_flags & BEING_WIELDED) { | |
378 | message("in use", 0); | |
379 | } else { | |
380 | unwield(rogue.weapon); | |
381 | (void) strcpy(desc, "wielding "); | |
382 | get_desc(obj, desc + 9); | |
383 | message(desc, 0); | |
384 | do_wield(obj); | |
385 | (void) reg_move(); | |
386 | } | |
387 | } | |
388 | ||
389 | do_wield(obj) | |
390 | object *obj; | |
391 | { | |
392 | rogue.weapon = obj; | |
393 | obj->in_use_flags |= BEING_WIELDED; | |
394 | } | |
395 | ||
396 | unwield(obj) | |
397 | object *obj; | |
398 | { | |
399 | if (obj) { | |
400 | obj->in_use_flags &= (~BEING_WIELDED); | |
401 | } | |
402 | rogue.weapon = (object *) 0; | |
403 | } | |
404 | ||
405 | call_it() | |
406 | { | |
407 | short ch; | |
408 | register object *obj; | |
409 | struct id *id_table; | |
410 | char buf[MAX_TITLE_LENGTH+2]; | |
411 | ||
412 | ch = pack_letter("call what?", (SCROL | POTION | WAND | RING)); | |
413 | ||
414 | if (ch == CANCEL) { | |
415 | return; | |
416 | } | |
417 | if (!(obj = get_letter_object(ch))) { | |
418 | message("no such item.", 0); | |
419 | return; | |
420 | } | |
421 | if (!(obj->what_is & (SCROL | POTION | WAND | RING))) { | |
422 | message("surely you already know what that's called", 0); | |
423 | return; | |
424 | } | |
425 | id_table = get_id_table(obj); | |
426 | ||
427 | if (get_input_line("call it:","",buf,id_table[obj->which_kind].title,1,1)) { | |
428 | id_table[obj->which_kind].id_status = CALLED; | |
429 | (void) strcpy(id_table[obj->which_kind].title, buf); | |
430 | } | |
431 | } | |
432 | ||
433 | pack_count(new_obj) | |
434 | object *new_obj; | |
435 | { | |
436 | object *obj; | |
437 | short count = 0; | |
438 | ||
439 | obj = rogue.pack.next_object; | |
440 | ||
441 | while (obj) { | |
442 | if (obj->what_is != WEAPON) { | |
443 | count += obj->quantity; | |
444 | } else if (!new_obj) { | |
445 | count++; | |
446 | } else if ((new_obj->what_is != WEAPON) || | |
447 | ((obj->which_kind != ARROW) && | |
448 | (obj->which_kind != DAGGER) && | |
449 | (obj->which_kind != DART) && | |
450 | (obj->which_kind != SHURIKEN)) || | |
451 | (new_obj->which_kind != obj->which_kind) || | |
452 | (obj->quiver != new_obj->quiver)) { | |
453 | count++; | |
454 | } | |
455 | obj = obj->next_object; | |
456 | } | |
457 | return(count); | |
458 | } | |
459 | ||
460 | boolean | |
461 | mask_pack(pack, mask) | |
462 | object *pack; | |
463 | unsigned short mask; | |
464 | { | |
465 | while (pack->next_object) { | |
466 | pack = pack->next_object; | |
467 | if (pack->what_is & mask) { | |
468 | return(1); | |
469 | } | |
470 | } | |
471 | return(0); | |
472 | } | |
473 | ||
474 | is_pack_letter(c, mask) | |
475 | short *c; | |
476 | unsigned short *mask; | |
477 | { | |
478 | if (((*c == '?') || (*c == '!') || (*c == ':') || (*c == '=') || | |
479 | (*c == ')') || (*c == ']') || (*c == '/') || (*c == ','))) { | |
480 | switch(*c) { | |
481 | case '?': | |
482 | *mask = SCROL; | |
483 | break; | |
484 | case '!': | |
485 | *mask = POTION; | |
486 | break; | |
487 | case ':': | |
488 | *mask = FOOD; | |
489 | break; | |
490 | case ')': | |
491 | *mask = WEAPON; | |
492 | break; | |
493 | case ']': | |
494 | *mask = ARMOR; | |
495 | break; | |
496 | case '/': | |
497 | *mask = WAND; | |
498 | break; | |
499 | case '=': | |
500 | *mask = RING; | |
501 | break; | |
502 | case ',': | |
503 | *mask = AMULET; | |
504 | break; | |
505 | } | |
506 | *c = LIST; | |
507 | return(1); | |
508 | } | |
509 | return(((*c >= 'a') && (*c <= 'z')) || (*c == CANCEL) || (*c == LIST)); | |
510 | } | |
511 | ||
512 | has_amulet() | |
513 | { | |
514 | return(mask_pack(&rogue.pack, AMULET)); | |
515 | } | |
516 | ||
517 | kick_into_pack() | |
518 | { | |
519 | object *obj; | |
520 | char desc[DCOLS]; | |
521 | short n, stat; | |
522 | ||
523 | if (!(dungeon[rogue.row][rogue.col] & OBJECT)) { | |
524 | message("nothing here", 0); | |
525 | } else { | |
526 | if (obj = pick_up(rogue.row, rogue.col, &stat)) { | |
527 | get_desc(obj, desc); | |
528 | if (obj->what_is == GOLD) { | |
529 | message(desc, 0); | |
530 | free_object(obj); | |
531 | } else { | |
532 | n = strlen(desc); | |
533 | desc[n] = '('; | |
534 | desc[n+1] = obj->ichar; | |
535 | desc[n+2] = ')'; | |
536 | desc[n+3] = 0; | |
537 | message(desc, 0); | |
538 | } | |
539 | } | |
540 | if (obj || (!stat)) { | |
541 | (void) reg_move(); | |
542 | } | |
543 | } | |
544 | } |