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1 | /* |
2 | * pack.c | |
3 | * | |
4 | * This source herein may be modified and/or distributed by anybody who | |
5 | * so desires, with the following restrictions: | |
6 | * 1.) No portion of this notice shall be removed. | |
7 | * 2.) Credit shall not be taken for the creation of this source. | |
8 | * 3.) This code is not to be traded, sold, or used for personal | |
9 | * gain or profit. | |
10 | * | |
11 | */ | |
12 | ||
13 | #ifndef lint | |
14 | static char sccsid[] = "@(#)pack.c 5.1 (Berkeley) %G%"; | |
15 | #endif /* not lint */ | |
16 | ||
17 | #include "rogue.h" | |
18 | ||
19 | char *curse_message = "you can't, it appears to be cursed"; | |
20 | ||
21 | extern short levitate; | |
22 | ||
23 | object * | |
24 | add_to_pack(obj, pack, condense) | |
25 | object *obj, *pack; | |
26 | { | |
27 | object *op; | |
28 | ||
29 | if (condense) { | |
30 | if (op = check_duplicate(obj, pack)) { | |
31 | free_object(obj); | |
32 | return(op); | |
33 | } else { | |
34 | obj->ichar = next_avail_ichar(); | |
35 | } | |
36 | } | |
37 | if (pack->next_object == 0) { | |
38 | pack->next_object = obj; | |
39 | } else { | |
40 | op = pack->next_object; | |
41 | ||
42 | while (op->next_object) { | |
43 | op = op->next_object; | |
44 | } | |
45 | op->next_object = obj; | |
46 | } | |
47 | obj->next_object = 0; | |
48 | return(obj); | |
49 | } | |
50 | ||
51 | take_from_pack(obj, pack) | |
52 | object *obj, *pack; | |
53 | { | |
54 | while (pack->next_object != obj) { | |
55 | pack = pack->next_object; | |
56 | } | |
57 | pack->next_object = pack->next_object->next_object; | |
58 | } | |
59 | ||
60 | /* Note: *status is set to 0 if the rogue attempts to pick up a scroll | |
61 | * of scare-monster and it turns to dust. *status is otherwise set to 1. | |
62 | */ | |
63 | ||
64 | object * | |
65 | pick_up(row, col, status) | |
66 | short *status; | |
67 | { | |
68 | object *obj; | |
69 | ||
70 | *status = 1; | |
71 | ||
72 | if (levitate) { | |
73 | message("you're floating in the air!", 0); | |
74 | return((object *) 0); | |
75 | } | |
76 | obj = object_at(&level_objects, row, col); | |
77 | if (!obj) { | |
78 | message("pick_up(): inconsistent", 1); | |
79 | return(obj); | |
80 | } | |
81 | if ( (obj->what_is == SCROL) && | |
82 | (obj->which_kind == SCARE_MONSTER) && | |
83 | obj->picked_up) { | |
84 | message("the scroll turns to dust as you pick it up", 0); | |
85 | dungeon[row][col] &= (~OBJECT); | |
86 | vanish(obj, 0, &level_objects); | |
87 | *status = 0; | |
88 | if (id_scrolls[SCARE_MONSTER].id_status == UNIDENTIFIED) { | |
89 | id_scrolls[SCARE_MONSTER].id_status = IDENTIFIED; | |
90 | } | |
91 | return((object *) 0); | |
92 | } | |
93 | if (obj->what_is == GOLD) { | |
94 | rogue.gold += obj->quantity; | |
95 | dungeon[row][col] &= ~(OBJECT); | |
96 | take_from_pack(obj, &level_objects); | |
97 | print_stats(STAT_GOLD); | |
98 | return(obj); /* obj will be free_object()ed in caller */ | |
99 | } | |
100 | if (pack_count(obj) >= MAX_PACK_COUNT) { | |
101 | message("pack too full", 1); | |
102 | return((object *) 0); | |
103 | } | |
104 | dungeon[row][col] &= ~(OBJECT); | |
105 | take_from_pack(obj, &level_objects); | |
106 | obj = add_to_pack(obj, &rogue.pack, 1); | |
107 | obj->picked_up = 1; | |
108 | return(obj); | |
109 | } | |
110 | ||
111 | drop() | |
112 | { | |
113 | object *obj, *new; | |
114 | short ch; | |
115 | char desc[DCOLS]; | |
116 | ||
117 | if (dungeon[rogue.row][rogue.col] & (OBJECT | STAIRS | TRAP)) { | |
118 | message("there's already something there", 0); | |
119 | return; | |
120 | } | |
121 | if (!rogue.pack.next_object) { | |
122 | message("you have nothing to drop", 0); | |
123 | return; | |
124 | } | |
125 | if ((ch = pack_letter("drop what?", ALL_OBJECTS)) == CANCEL) { | |
126 | return; | |
127 | } | |
128 | if (!(obj = get_letter_object(ch))) { | |
129 | message("no such item.", 0); | |
130 | return; | |
131 | } | |
132 | if (obj->in_use_flags & BEING_WIELDED) { | |
133 | if (obj->is_cursed) { | |
134 | message(curse_message, 0); | |
135 | return; | |
136 | } | |
137 | unwield(rogue.weapon); | |
138 | } else if (obj->in_use_flags & BEING_WORN) { | |
139 | if (obj->is_cursed) { | |
140 | message(curse_message, 0); | |
141 | return; | |
142 | } | |
143 | mv_aquatars(); | |
144 | unwear(rogue.armor); | |
145 | print_stats(STAT_ARMOR); | |
146 | } else if (obj->in_use_flags & ON_EITHER_HAND) { | |
147 | if (obj->is_cursed) { | |
148 | message(curse_message, 0); | |
149 | return; | |
150 | } | |
151 | un_put_on(obj); | |
152 | } | |
153 | obj->row = rogue.row; | |
154 | obj->col = rogue.col; | |
155 | ||
156 | if ((obj->quantity > 1) && (obj->what_is != WEAPON)) { | |
157 | obj->quantity--; | |
158 | new = alloc_object(); | |
159 | *new = *obj; | |
160 | new->quantity = 1; | |
161 | obj = new; | |
162 | } else { | |
163 | obj->ichar = 'L'; | |
164 | take_from_pack(obj, &rogue.pack); | |
165 | } | |
166 | place_at(obj, rogue.row, rogue.col); | |
167 | (void) strcpy(desc, "dropped "); | |
168 | get_desc(obj, desc+8); | |
169 | message(desc, 0); | |
170 | (void) reg_move(); | |
171 | } | |
172 | ||
173 | object * | |
174 | check_duplicate(obj, pack) | |
175 | object *obj, *pack; | |
176 | { | |
177 | object *op; | |
178 | ||
179 | if (!(obj->what_is & (WEAPON | FOOD | SCROL | POTION))) { | |
180 | return(0); | |
181 | } | |
182 | if ((obj->what_is == FOOD) && (obj->which_kind == FRUIT)) { | |
183 | return(0); | |
184 | } | |
185 | op = pack->next_object; | |
186 | ||
187 | while (op) { | |
188 | if ((op->what_is == obj->what_is) && | |
189 | (op->which_kind == obj->which_kind)) { | |
190 | ||
191 | if ((obj->what_is != WEAPON) || | |
192 | ((obj->what_is == WEAPON) && | |
193 | ((obj->which_kind == ARROW) || | |
194 | (obj->which_kind == DAGGER) || | |
195 | (obj->which_kind == DART) || | |
196 | (obj->which_kind == SHURIKEN)) && | |
197 | (obj->quiver == op->quiver))) { | |
198 | op->quantity += obj->quantity; | |
199 | return(op); | |
200 | } | |
201 | } | |
202 | op = op->next_object; | |
203 | } | |
204 | return(0); | |
205 | } | |
206 | ||
207 | next_avail_ichar() | |
208 | { | |
209 | register object *obj; | |
210 | register i; | |
211 | boolean ichars[26]; | |
212 | ||
213 | for (i = 0; i < 26; i++) { | |
214 | ichars[i] = 0; | |
215 | } | |
216 | obj = rogue.pack.next_object; | |
217 | while (obj) { | |
218 | ichars[(obj->ichar - 'a')] = 1; | |
219 | obj = obj->next_object; | |
220 | } | |
221 | for (i = 0; i < 26; i++) { | |
222 | if (!ichars[i]) { | |
223 | return(i + 'a'); | |
224 | } | |
225 | } | |
226 | return('?'); | |
227 | } | |
228 | ||
229 | wait_for_ack() | |
230 | { | |
231 | while (rgetchar() != ' ') ; | |
232 | } | |
233 | ||
234 | pack_letter(prompt, mask) | |
235 | char *prompt; | |
236 | unsigned short mask; | |
237 | { | |
238 | short ch; | |
239 | unsigned short tmask = mask; | |
240 | ||
241 | if (!mask_pack(&rogue.pack, mask)) { | |
242 | message("nothing appropriate", 0); | |
243 | return(CANCEL); | |
244 | } | |
245 | for (;;) { | |
246 | ||
247 | message(prompt, 0); | |
248 | ||
249 | for (;;) { | |
250 | ch = rgetchar(); | |
251 | if (!is_pack_letter(&ch, &mask)) { | |
252 | sound_bell(); | |
253 | } else { | |
254 | break; | |
255 | } | |
256 | } | |
257 | ||
258 | if (ch == LIST) { | |
259 | check_message(); | |
260 | inventory(&rogue.pack, mask); | |
261 | } else { | |
262 | break; | |
263 | } | |
264 | mask = tmask; | |
265 | } | |
266 | check_message(); | |
267 | return(ch); | |
268 | } | |
269 | ||
270 | take_off() | |
271 | { | |
272 | char desc[DCOLS]; | |
273 | object *obj; | |
274 | ||
275 | if (rogue.armor) { | |
276 | if (rogue.armor->is_cursed) { | |
277 | message(curse_message, 0); | |
278 | } else { | |
279 | mv_aquatars(); | |
280 | obj = rogue.armor; | |
281 | unwear(rogue.armor); | |
282 | (void) strcpy(desc, "was wearing "); | |
283 | get_desc(obj, desc+12); | |
284 | message(desc, 0); | |
285 | print_stats(STAT_ARMOR); | |
286 | (void) reg_move(); | |
287 | } | |
288 | } else { | |
289 | message("not wearing any", 0); | |
290 | } | |
291 | } | |
292 | ||
293 | wear() | |
294 | { | |
295 | short ch; | |
296 | register object *obj; | |
297 | char desc[DCOLS]; | |
298 | ||
299 | if (rogue.armor) { | |
300 | message("your already wearing some", 0); | |
301 | return; | |
302 | } | |
303 | ch = pack_letter("wear what?", ARMOR); | |
304 | ||
305 | if (ch == CANCEL) { | |
306 | return; | |
307 | } | |
308 | if (!(obj = get_letter_object(ch))) { | |
309 | message("no such item.", 0); | |
310 | return; | |
311 | } | |
312 | if (obj->what_is != ARMOR) { | |
313 | message("you can't wear that", 0); | |
314 | return; | |
315 | } | |
316 | obj->identified = 1; | |
317 | (void) strcpy(desc, "wearing "); | |
318 | get_desc(obj, desc + 8); | |
319 | message(desc, 0); | |
320 | do_wear(obj); | |
321 | print_stats(STAT_ARMOR); | |
322 | (void) reg_move(); | |
323 | } | |
324 | ||
325 | unwear(obj) | |
326 | object *obj; | |
327 | { | |
328 | if (obj) { | |
329 | obj->in_use_flags &= (~BEING_WORN); | |
330 | } | |
331 | rogue.armor = (object *) 0; | |
332 | } | |
333 | ||
334 | do_wear(obj) | |
335 | object *obj; | |
336 | { | |
337 | rogue.armor = obj; | |
338 | obj->in_use_flags |= BEING_WORN; | |
339 | obj->identified = 1; | |
340 | } | |
341 | ||
342 | wield() | |
343 | { | |
344 | short ch; | |
345 | register object *obj; | |
346 | char desc[DCOLS]; | |
347 | ||
348 | if (rogue.weapon && rogue.weapon->is_cursed) { | |
349 | message(curse_message, 0); | |
350 | return; | |
351 | } | |
352 | ch = pack_letter("wield what?", WEAPON); | |
353 | ||
354 | if (ch == CANCEL) { | |
355 | return; | |
356 | } | |
357 | if (!(obj = get_letter_object(ch))) { | |
358 | message("No such item.", 0); | |
359 | return; | |
360 | } | |
361 | if (obj->what_is & (ARMOR | RING)) { | |
362 | sprintf(desc, "you can't wield %s", | |
363 | ((obj->what_is == ARMOR) ? "armor" : "rings")); | |
364 | message(desc, 0); | |
365 | return; | |
366 | } | |
367 | if (obj->in_use_flags & BEING_WIELDED) { | |
368 | message("in use", 0); | |
369 | } else { | |
370 | unwield(rogue.weapon); | |
371 | (void) strcpy(desc, "wielding "); | |
372 | get_desc(obj, desc + 9); | |
373 | message(desc, 0); | |
374 | do_wield(obj); | |
375 | (void) reg_move(); | |
376 | } | |
377 | } | |
378 | ||
379 | do_wield(obj) | |
380 | object *obj; | |
381 | { | |
382 | rogue.weapon = obj; | |
383 | obj->in_use_flags |= BEING_WIELDED; | |
384 | } | |
385 | ||
386 | unwield(obj) | |
387 | object *obj; | |
388 | { | |
389 | if (obj) { | |
390 | obj->in_use_flags &= (~BEING_WIELDED); | |
391 | } | |
392 | rogue.weapon = (object *) 0; | |
393 | } | |
394 | ||
395 | call_it() | |
396 | { | |
397 | short ch; | |
398 | register object *obj; | |
399 | struct id *id_table; | |
400 | char buf[MAX_TITLE_LENGTH+2]; | |
401 | ||
402 | ch = pack_letter("call what?", (SCROL | POTION | WAND | RING)); | |
403 | ||
404 | if (ch == CANCEL) { | |
405 | return; | |
406 | } | |
407 | if (!(obj = get_letter_object(ch))) { | |
408 | message("no such item.", 0); | |
409 | return; | |
410 | } | |
411 | if (!(obj->what_is & (SCROL | POTION | WAND | RING))) { | |
412 | message("surely you already know what that's called", 0); | |
413 | return; | |
414 | } | |
415 | id_table = get_id_table(obj); | |
416 | ||
417 | if (get_input_line("call it:","",buf,id_table[obj->which_kind].title,1,1)) { | |
418 | id_table[obj->which_kind].id_status = CALLED; | |
419 | (void) strcpy(id_table[obj->which_kind].title, buf); | |
420 | } | |
421 | } | |
422 | ||
423 | pack_count(new_obj) | |
424 | object *new_obj; | |
425 | { | |
426 | object *obj; | |
427 | short count = 0; | |
428 | ||
429 | obj = rogue.pack.next_object; | |
430 | ||
431 | while (obj) { | |
432 | if (obj->what_is != WEAPON) { | |
433 | count += obj->quantity; | |
434 | } else if (!new_obj) { | |
435 | count++; | |
436 | } else if ((new_obj->what_is != WEAPON) || | |
437 | ((obj->which_kind != ARROW) && | |
438 | (obj->which_kind != DAGGER) && | |
439 | (obj->which_kind != DART) && | |
440 | (obj->which_kind != SHURIKEN)) || | |
441 | (new_obj->which_kind != obj->which_kind) || | |
442 | (obj->quiver != new_obj->quiver)) { | |
443 | count++; | |
444 | } | |
445 | obj = obj->next_object; | |
446 | } | |
447 | return(count); | |
448 | } | |
449 | ||
450 | boolean | |
451 | mask_pack(pack, mask) | |
452 | object *pack; | |
453 | unsigned short mask; | |
454 | { | |
455 | while (pack->next_object) { | |
456 | pack = pack->next_object; | |
457 | if (pack->what_is & mask) { | |
458 | return(1); | |
459 | } | |
460 | } | |
461 | return(0); | |
462 | } | |
463 | ||
464 | is_pack_letter(c, mask) | |
465 | short *c; | |
466 | unsigned short *mask; | |
467 | { | |
468 | if (((*c == '?') || (*c == '!') || (*c == ':') || (*c == '=') || | |
469 | (*c == ')') || (*c == ']') || (*c == '/') || (*c == ','))) { | |
470 | switch(*c) { | |
471 | case '?': | |
472 | *mask = SCROL; | |
473 | break; | |
474 | case '!': | |
475 | *mask = POTION; | |
476 | break; | |
477 | case ':': | |
478 | *mask = FOOD; | |
479 | break; | |
480 | case ')': | |
481 | *mask = WEAPON; | |
482 | break; | |
483 | case ']': | |
484 | *mask = ARMOR; | |
485 | break; | |
486 | case '/': | |
487 | *mask = WAND; | |
488 | break; | |
489 | case '=': | |
490 | *mask = RING; | |
491 | break; | |
492 | case ',': | |
493 | *mask = AMULET; | |
494 | break; | |
495 | } | |
496 | *c = LIST; | |
497 | return(1); | |
498 | } | |
499 | return(((*c >= 'a') && (*c <= 'z')) || (*c == CANCEL) || (*c == LIST)); | |
500 | } | |
501 | ||
502 | has_amulet() | |
503 | { | |
504 | return(mask_pack(&rogue.pack, AMULET)); | |
505 | } | |
506 | ||
507 | kick_into_pack() | |
508 | { | |
509 | object *obj; | |
510 | char desc[DCOLS]; | |
511 | short n, stat; | |
512 | ||
513 | if (!(dungeon[rogue.row][rogue.col] & OBJECT)) { | |
514 | message("nothing here", 0); | |
515 | } else { | |
516 | if (obj = pick_up(rogue.row, rogue.col, &stat)) { | |
517 | get_desc(obj, desc); | |
518 | if (obj->what_is == GOLD) { | |
519 | message(desc, 0); | |
520 | free_object(obj); | |
521 | } else { | |
522 | n = strlen(desc); | |
523 | desc[n] = '('; | |
524 | desc[n+1] = obj->ichar; | |
525 | desc[n+2] = ')'; | |
526 | desc[n+3] = 0; | |
527 | message(desc, 0); | |
528 | } | |
529 | } | |
530 | if (obj || (!stat)) { | |
531 | (void) reg_move(); | |
532 | } | |
533 | } | |
534 | } |