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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[] = "@(#)use.c 5.3 (Berkeley) %G%"; |
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13 | #endif /* not lint */ |
14 | ||
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15 | /* |
16 | * use.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 | short halluc = 0; | |
30 | short blind = 0; | |
31 | short confused = 0; | |
32 | short levitate = 0; | |
33 | short haste_self = 0; | |
34 | boolean see_invisible = 0; | |
35 | short extra_hp = 0; | |
36 | boolean detect_monster = 0; | |
37 | boolean con_mon = 0; | |
38 | char *strange_feeling = "you have a strange feeling for a moment, then it passes"; | |
39 | ||
40 | extern short bear_trap; | |
41 | extern char hunger_str[]; | |
42 | extern short cur_room; | |
43 | extern long level_points[]; | |
44 | extern boolean being_held; | |
45 | extern char *fruit, *you_can_move_again; | |
46 | extern boolean sustain_strength; | |
47 | ||
48 | quaff() | |
49 | { | |
50 | short ch; | |
51 | char buf[80]; | |
52 | object *obj; | |
53 | ||
54 | ch = pack_letter("quaff what?", POTION); | |
55 | ||
56 | if (ch == CANCEL) { | |
57 | return; | |
58 | } | |
59 | if (!(obj = get_letter_object(ch))) { | |
60 | message("no such item.", 0); | |
61 | return; | |
62 | } | |
63 | if (obj->what_is != POTION) { | |
64 | message("you can't drink that", 0); | |
65 | return; | |
66 | } | |
67 | switch(obj->which_kind) { | |
68 | case INCREASE_STRENGTH: | |
69 | message("you feel stronger now, what bulging muscles!", | |
70 | 0); | |
71 | rogue.str_current++; | |
72 | if (rogue.str_current > rogue.str_max) { | |
73 | rogue.str_max = rogue.str_current; | |
74 | } | |
75 | break; | |
76 | case RESTORE_STRENGTH: | |
77 | rogue.str_current = rogue.str_max; | |
78 | message("this tastes great, you feel warm all over", 0); | |
79 | break; | |
80 | case HEALING: | |
81 | message("you begin to feel better", 0); | |
82 | potion_heal(0); | |
83 | break; | |
84 | case EXTRA_HEALING: | |
85 | message("you begin to feel much better", 0); | |
86 | potion_heal(1); | |
87 | break; | |
88 | case POISON: | |
89 | if (!sustain_strength) { | |
90 | rogue.str_current -= get_rand(1, 3); | |
91 | if (rogue.str_current < 1) { | |
92 | rogue.str_current = 1; | |
93 | } | |
94 | } | |
95 | message("you feel very sick now", 0); | |
96 | if (halluc) { | |
97 | unhallucinate(); | |
98 | } | |
99 | break; | |
100 | case RAISE_LEVEL: | |
101 | rogue.exp_points = level_points[rogue.exp - 1]; | |
102 | message("you suddenly feel much more skillful", 0); | |
103 | add_exp(1, 1); | |
104 | break; | |
105 | case BLINDNESS: | |
106 | go_blind(); | |
107 | break; | |
108 | case HALLUCINATION: | |
109 | message("oh wow, everything seems so cosmic", 0); | |
110 | halluc += get_rand(500, 800); | |
111 | break; | |
112 | case DETECT_MONSTER: | |
113 | show_monsters(); | |
114 | if (!(level_monsters.next_monster)) { | |
115 | message(strange_feeling, 0); | |
116 | } | |
117 | break; | |
118 | case DETECT_OBJECTS: | |
119 | if (level_objects.next_object) { | |
120 | if (!blind) { | |
121 | show_objects(); | |
122 | } | |
123 | } else { | |
124 | message(strange_feeling, 0); | |
125 | } | |
126 | break; | |
127 | case CONFUSION: | |
128 | message((halluc ? "what a trippy feeling" : | |
129 | "you feel confused"), 0); | |
130 | cnfs(); | |
131 | break; | |
132 | case LEVITATION: | |
133 | message("you start to float in the air", 0); | |
134 | levitate += get_rand(15, 30); | |
135 | being_held = bear_trap = 0; | |
136 | break; | |
137 | case HASTE_SELF: | |
138 | message("you feel yourself moving much faster", 0); | |
139 | haste_self += get_rand(11, 21); | |
140 | if (!(haste_self % 2)) { | |
141 | haste_self++; | |
142 | } | |
143 | break; | |
144 | case SEE_INVISIBLE: | |
145 | sprintf(buf, "hmm, this potion tastes like %sjuice", fruit); | |
146 | message(buf, 0); | |
147 | if (blind) { | |
148 | unblind(); | |
149 | } | |
150 | see_invisible = 1; | |
151 | relight(); | |
152 | break; | |
153 | } | |
154 | print_stats((STAT_STRENGTH | STAT_HP)); | |
155 | if (id_potions[obj->which_kind].id_status != CALLED) { | |
156 | id_potions[obj->which_kind].id_status = IDENTIFIED; | |
157 | } | |
158 | vanish(obj, 1, &rogue.pack); | |
159 | } | |
160 | ||
161 | read_scroll() | |
162 | { | |
163 | short ch; | |
164 | object *obj; | |
165 | char msg[DCOLS]; | |
166 | ||
167 | ch = pack_letter("read what?", SCROL); | |
168 | ||
169 | if (ch == CANCEL) { | |
170 | return; | |
171 | } | |
172 | if (!(obj = get_letter_object(ch))) { | |
173 | message("no such item.", 0); | |
174 | return; | |
175 | } | |
176 | if (obj->what_is != SCROL) { | |
177 | message("you can't read that", 0); | |
178 | return; | |
179 | } | |
180 | switch(obj->which_kind) { | |
181 | case SCARE_MONSTER: | |
182 | message("you hear a maniacal laughter in the distance", | |
183 | 0); | |
184 | break; | |
185 | case HOLD_MONSTER: | |
186 | hold_monster(); | |
187 | break; | |
188 | case ENCH_WEAPON: | |
189 | if (rogue.weapon) { | |
190 | if (rogue.weapon->what_is == WEAPON) { | |
191 | sprintf(msg, "your %sglow%s %sfor a moment", | |
192 | name_of(rogue.weapon), | |
193 | ((rogue.weapon->quantity <= 1) ? "s" : ""), | |
194 | get_ench_color()); | |
195 | message(msg, 0); | |
196 | if (coin_toss()) { | |
197 | rogue.weapon->hit_enchant++; | |
198 | } else { | |
199 | rogue.weapon->d_enchant++; | |
200 | } | |
201 | } | |
202 | rogue.weapon->is_cursed = 0; | |
203 | } else { | |
204 | message("your hands tingle", 0); | |
205 | } | |
206 | break; | |
207 | case ENCH_ARMOR: | |
208 | if (rogue.armor) { | |
209 | sprintf(msg, "your armor glows %sfor a moment", | |
210 | get_ench_color()); | |
211 | message(msg, 0); | |
212 | rogue.armor->d_enchant++; | |
213 | rogue.armor->is_cursed = 0; | |
214 | print_stats(STAT_ARMOR); | |
215 | } else { | |
216 | message("your skin crawls", 0); | |
217 | } | |
218 | break; | |
219 | case IDENTIFY: | |
220 | message("this is a scroll of identify", 0); | |
221 | obj->identified = 1; | |
222 | id_scrolls[obj->which_kind].id_status = IDENTIFIED; | |
223 | idntfy(); | |
224 | break; | |
225 | case TELEPORT: | |
226 | tele(); | |
227 | break; | |
228 | case SLEEP: | |
229 | message("you fall asleep", 0); | |
230 | take_a_nap(); | |
231 | break; | |
232 | case PROTECT_ARMOR: | |
233 | if (rogue.armor) { | |
234 | message( "your armor is covered by a shimmering gold shield",0); | |
235 | rogue.armor->is_protected = 1; | |
236 | rogue.armor->is_cursed = 0; | |
237 | } else { | |
238 | message("your acne seems to have disappeared", 0); | |
239 | } | |
240 | break; | |
241 | case REMOVE_CURSE: | |
242 | message((!halluc) ? | |
243 | "you feel as though someone is watching over you" : | |
244 | "you feel in touch with the universal oneness", 0); | |
245 | uncurse_all(); | |
246 | break; | |
247 | case CREATE_MONSTER: | |
248 | create_monster(); | |
249 | break; | |
250 | case AGGRAVATE_MONSTER: | |
251 | aggravate(); | |
252 | break; | |
253 | case MAGIC_MAPPING: | |
254 | message("this scroll seems to have a map on it", 0); | |
255 | draw_magic_map(); | |
256 | break; | |
257 | case CON_MON: | |
258 | con_mon = 1; | |
259 | sprintf(msg, "your hands glow %sfor a moment", get_ench_color()); | |
260 | message(msg, 0); | |
261 | break; | |
262 | } | |
263 | if (id_scrolls[obj->which_kind].id_status != CALLED) { | |
264 | id_scrolls[obj->which_kind].id_status = IDENTIFIED; | |
265 | } | |
266 | vanish(obj, (obj->which_kind != SLEEP), &rogue.pack); | |
267 | } | |
268 | ||
269 | /* vanish() does NOT handle a quiver of weapons with more than one | |
270 | * arrow (or whatever) in the quiver. It will only decrement the count. | |
271 | */ | |
272 | ||
273 | vanish(obj, rm, pack) | |
274 | object *obj; | |
275 | short rm; | |
276 | object *pack; | |
277 | { | |
278 | if (obj->quantity > 1) { | |
279 | obj->quantity--; | |
280 | } else { | |
281 | if (obj->in_use_flags & BEING_WIELDED) { | |
282 | unwield(obj); | |
283 | } else if (obj->in_use_flags & BEING_WORN) { | |
284 | unwear(obj); | |
285 | } else if (obj->in_use_flags & ON_EITHER_HAND) { | |
286 | un_put_on(obj); | |
287 | } | |
288 | take_from_pack(obj, pack); | |
289 | free_object(obj); | |
290 | } | |
291 | if (rm) { | |
292 | (void) reg_move(); | |
293 | } | |
294 | } | |
295 | ||
296 | potion_heal(extra) | |
297 | { | |
298 | float ratio; | |
299 | short add; | |
300 | ||
301 | rogue.hp_current += rogue.exp; | |
302 | ||
303 | ratio = ((float)rogue.hp_current) / rogue.hp_max; | |
304 | ||
305 | if (ratio >= 1.00) { | |
306 | rogue.hp_max += (extra ? 2 : 1); | |
307 | extra_hp += (extra ? 2 : 1); | |
308 | rogue.hp_current = rogue.hp_max; | |
309 | } else if (ratio >= 0.90) { | |
310 | rogue.hp_max += (extra ? 1 : 0); | |
311 | extra_hp += (extra ? 1 : 0); | |
312 | rogue.hp_current = rogue.hp_max; | |
313 | } else { | |
314 | if (ratio < 0.33) { | |
315 | ratio = 0.33; | |
316 | } | |
317 | if (extra) { | |
318 | ratio += ratio; | |
319 | } | |
320 | add = (short)(ratio * ((float)rogue.hp_max - rogue.hp_current)); | |
321 | rogue.hp_current += add; | |
322 | if (rogue.hp_current > rogue.hp_max) { | |
323 | rogue.hp_current = rogue.hp_max; | |
324 | } | |
325 | } | |
326 | if (blind) { | |
327 | unblind(); | |
328 | } | |
329 | if (confused && extra) { | |
330 | unconfuse(); | |
331 | } else if (confused) { | |
332 | confused = (confused / 2) + 1; | |
333 | } | |
334 | if (halluc && extra) { | |
335 | unhallucinate(); | |
336 | } else if (halluc) { | |
337 | halluc = (halluc / 2) + 1; | |
338 | } | |
339 | } | |
340 | ||
341 | idntfy() | |
342 | { | |
343 | short ch; | |
344 | object *obj; | |
345 | struct id *id_table; | |
346 | char desc[DCOLS]; | |
347 | AGAIN: | |
348 | ch = pack_letter("what would you like to identify?", ALL_OBJECTS); | |
349 | ||
350 | if (ch == CANCEL) { | |
351 | return; | |
352 | } | |
353 | if (!(obj = get_letter_object(ch))) { | |
354 | message("no such item, try again", 0); | |
355 | message("", 0); | |
356 | check_message(); | |
357 | goto AGAIN; | |
358 | } | |
359 | obj->identified = 1; | |
360 | if (obj->what_is & (SCROL | POTION | WEAPON | ARMOR | WAND | RING)) { | |
361 | id_table = get_id_table(obj); | |
362 | id_table[obj->which_kind].id_status = IDENTIFIED; | |
363 | } | |
364 | get_desc(obj, desc); | |
365 | message(desc, 0); | |
366 | } | |
367 | ||
368 | eat() | |
369 | { | |
370 | short ch; | |
371 | short moves; | |
372 | object *obj; | |
373 | char buf[70]; | |
374 | ||
375 | ch = pack_letter("eat what?", FOOD); | |
376 | ||
377 | if (ch == CANCEL) { | |
378 | return; | |
379 | } | |
380 | if (!(obj = get_letter_object(ch))) { | |
381 | message("no such item.", 0); | |
382 | return; | |
383 | } | |
384 | if (obj->what_is != FOOD) { | |
385 | message("you can't eat that", 0); | |
386 | return; | |
387 | } | |
388 | if ((obj->which_kind == FRUIT) || rand_percent(60)) { | |
389 | moves = get_rand(950, 1150); | |
390 | if (obj->which_kind == RATION) { | |
391 | message("yum, that tasted good", 0); | |
392 | } else { | |
393 | sprintf(buf, "my, that was a yummy %s", fruit); | |
394 | message(buf, 0); | |
395 | } | |
396 | } else { | |
397 | moves = get_rand(750, 950); | |
398 | message("yuk, that food tasted awful", 0); | |
399 | add_exp(2, 1); | |
400 | } | |
401 | rogue.moves_left /= 3; | |
402 | rogue.moves_left += moves; | |
403 | hunger_str[0] = 0; | |
404 | print_stats(STAT_HUNGER); | |
405 | ||
406 | vanish(obj, 1, &rogue.pack); | |
407 | } | |
408 | ||
409 | hold_monster() | |
410 | { | |
411 | short i, j; | |
412 | short mcount = 0; | |
413 | object *monster; | |
414 | short row, col; | |
415 | ||
416 | for (i = -2; i <= 2; i++) { | |
417 | for (j = -2; j <= 2; j++) { | |
418 | row = rogue.row + i; | |
419 | col = rogue.col + j; | |
420 | if ((row < MIN_ROW) || (row > (DROWS-2)) || (col < 0) || | |
421 | (col > (DCOLS-1))) { | |
422 | continue; | |
423 | } | |
424 | if (dungeon[row][col] & MONSTER) { | |
425 | monster = object_at(&level_monsters, row, col); | |
426 | monster->m_flags |= ASLEEP; | |
427 | monster->m_flags &= (~WAKENS); | |
428 | mcount++; | |
429 | } | |
430 | } | |
431 | } | |
432 | if (mcount == 0) { | |
433 | message("you feel a strange sense of loss", 0); | |
434 | } else if (mcount == 1) { | |
435 | message("the monster freezes", 0); | |
436 | } else { | |
437 | message("the monsters around you freeze", 0); | |
438 | } | |
439 | } | |
440 | ||
441 | tele() | |
442 | { | |
443 | mvaddch(rogue.row, rogue.col, get_dungeon_char(rogue.row, rogue.col)); | |
444 | ||
445 | if (cur_room >= 0) { | |
446 | darken_room(cur_room); | |
447 | } | |
448 | put_player(get_room_number(rogue.row, rogue.col)); | |
449 | being_held = 0; | |
450 | bear_trap = 0; | |
451 | } | |
452 | ||
453 | hallucinate() | |
454 | { | |
455 | object *obj, *monster; | |
456 | short ch; | |
457 | ||
458 | if (blind) return; | |
459 | ||
460 | obj = level_objects.next_object; | |
461 | ||
462 | while (obj) { | |
463 | ch = mvinch(obj->row, obj->col); | |
464 | if (((ch < 'A') || (ch > 'Z')) && | |
465 | ((obj->row != rogue.row) || (obj->col != rogue.col))) | |
466 | if ((ch != ' ') && (ch != '.') && (ch != '#') && (ch != '+')) { | |
467 | addch(gr_obj_char()); | |
468 | } | |
469 | obj = obj->next_object; | |
470 | } | |
471 | monster = level_monsters.next_monster; | |
472 | ||
473 | while (monster) { | |
474 | ch = mvinch(monster->row, monster->col); | |
475 | if ((ch >= 'A') && (ch <= 'Z')) { | |
476 | addch(get_rand('A', 'Z')); | |
477 | } | |
478 | monster = monster->next_monster; | |
479 | } | |
480 | } | |
481 | ||
482 | unhallucinate() | |
483 | { | |
484 | halluc = 0; | |
485 | relight(); | |
486 | message("everything looks SO boring now", 1); | |
487 | } | |
488 | ||
489 | unblind() | |
490 | { | |
491 | blind = 0; | |
492 | message("the veil of darkness lifts", 1); | |
493 | relight(); | |
494 | if (halluc) { | |
495 | hallucinate(); | |
496 | } | |
497 | if (detect_monster) { | |
498 | show_monsters(); | |
499 | } | |
500 | } | |
501 | ||
502 | relight() | |
503 | { | |
504 | if (cur_room == PASSAGE) { | |
505 | light_passage(rogue.row, rogue.col); | |
506 | } else { | |
507 | light_up_room(cur_room); | |
508 | } | |
509 | mvaddch(rogue.row, rogue.col, rogue.fchar); | |
510 | } | |
511 | ||
512 | take_a_nap() | |
513 | { | |
514 | short i; | |
515 | ||
516 | i = get_rand(2, 5); | |
517 | md_sleep(1); | |
518 | ||
519 | while (i--) { | |
520 | mv_mons(); | |
521 | } | |
522 | md_sleep(1); | |
523 | message(you_can_move_again, 0); | |
524 | } | |
525 | ||
526 | go_blind() | |
527 | { | |
528 | short i, j; | |
529 | ||
530 | if (!blind) { | |
531 | message("a cloak of darkness falls around you", 0); | |
532 | } | |
533 | blind += get_rand(500, 800); | |
534 | ||
535 | if (detect_monster) { | |
536 | object *monster; | |
537 | ||
538 | monster = level_monsters.next_monster; | |
539 | ||
540 | while (monster) { | |
541 | mvaddch(monster->row, monster->col, monster->trail_char); | |
542 | monster = monster->next_monster; | |
543 | } | |
544 | } | |
545 | if (cur_room >= 0) { | |
546 | for (i = rooms[cur_room].top_row + 1; | |
547 | i < rooms[cur_room].bottom_row; i++) { | |
548 | for (j = rooms[cur_room].left_col + 1; | |
549 | j < rooms[cur_room].right_col; j++) { | |
550 | mvaddch(i, j, ' '); | |
551 | } | |
552 | } | |
553 | } | |
554 | mvaddch(rogue.row, rogue.col, rogue.fchar); | |
555 | } | |
556 | ||
557 | char * | |
558 | get_ench_color() | |
559 | { | |
560 | if (halluc) { | |
561 | return(id_potions[get_rand(0, POTIONS-1)].title); | |
562 | } else if (con_mon) { | |
563 | return("red "); | |
564 | } | |
565 | return("blue "); | |
566 | } | |
567 | ||
568 | cnfs() | |
569 | { | |
570 | confused += get_rand(12, 22); | |
571 | } | |
572 | ||
573 | unconfuse() | |
574 | { | |
575 | char msg[80]; | |
576 | ||
577 | confused = 0; | |
578 | sprintf(msg, "you feel less %s now", (halluc ? "trippy" : "confused")); | |
579 | message(msg, 1); | |
580 | } | |
581 | ||
582 | uncurse_all() | |
583 | { | |
584 | object *obj; | |
585 | ||
586 | obj = rogue.pack.next_object; | |
587 | ||
588 | while (obj) { | |
589 | obj->is_cursed = 0; | |
590 | obj = obj->next_object; | |
591 | } | |
592 | } |