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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 | * | |
8 | * Redistribution and use in source and binary forms are permitted | |
9 | * provided that the above copyright notice and this paragraph are | |
10 | * duplicated in all such forms and that any documentation, | |
11 | * advertising materials, and other materials related to such | |
12 | * distribution and use acknowledge that the software was developed | |
13 | * by the University of California, Berkeley. The name of the | |
14 | * University may not be used to endorse or promote products derived | |
15 | * from this software without specific prior written permission. | |
16 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
17 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
19 | */ | |
20 | ||
21 | #ifndef lint | |
22 | static char sccsid[] = "@(#)spec_hit.c 5.2 (Berkeley) %G%"; | |
23 | #endif /* not lint */ | |
24 | ||
b3afadef KB |
25 | /* |
26 | * special_hit.c | |
27 | * | |
28 | * This source herein may be modified and/or distributed by anybody who | |
29 | * so desires, with the following restrictions: | |
30 | * 1.) No portion of this notice shall be removed. | |
31 | * 2.) Credit shall not be taken for the creation of this source. | |
32 | * 3.) This code is not to be traded, sold, or used for personal | |
33 | * gain or profit. | |
34 | * | |
35 | */ | |
36 | ||
b3afadef KB |
37 | #include "rogue.h" |
38 | ||
39 | short less_hp = 0; | |
40 | boolean being_held; | |
41 | ||
42 | extern short cur_level, max_level, blind, levitate, ring_exp; | |
43 | extern long level_points[]; | |
44 | extern boolean detect_monster, mon_disappeared; | |
45 | extern boolean sustain_strength, maintain_armor; | |
46 | extern char *you_can_move_again; | |
47 | ||
48 | special_hit(monster) | |
49 | object *monster; | |
50 | { | |
51 | if ((monster->m_flags & CONFUSED) && rand_percent(66)) { | |
52 | return; | |
53 | } | |
54 | if (monster->m_flags & RUSTS) { | |
55 | rust(monster); | |
56 | } | |
57 | if ((monster->m_flags & HOLDS) && !levitate) { | |
58 | being_held = 1; | |
59 | } | |
60 | if (monster->m_flags & FREEZES) { | |
61 | freeze(monster); | |
62 | } | |
63 | if (monster->m_flags & STINGS) { | |
64 | sting(monster); | |
65 | } | |
66 | if (monster->m_flags & DRAINS_LIFE) { | |
67 | drain_life(); | |
68 | } | |
69 | if (monster->m_flags & DROPS_LEVEL) { | |
70 | drop_level(); | |
71 | } | |
72 | if (monster->m_flags & STEALS_GOLD) { | |
73 | steal_gold(monster); | |
74 | } else if (monster->m_flags & STEALS_ITEM) { | |
75 | steal_item(monster); | |
76 | } | |
77 | } | |
78 | ||
79 | rust(monster) | |
80 | object *monster; | |
81 | { | |
82 | if ((!rogue.armor) || (get_armor_class(rogue.armor) <= 1) || | |
83 | (rogue.armor->which_kind == LEATHER)) { | |
84 | return; | |
85 | } | |
86 | if ((rogue.armor->is_protected) || maintain_armor) { | |
87 | if (monster && (!(monster->m_flags & RUST_VANISHED))) { | |
88 | message("the rust vanishes instantly", 0); | |
89 | monster->m_flags |= RUST_VANISHED; | |
90 | } | |
91 | } else { | |
92 | rogue.armor->d_enchant--; | |
93 | message("your armor weakens", 0); | |
94 | print_stats(STAT_ARMOR); | |
95 | } | |
96 | } | |
97 | ||
98 | freeze(monster) | |
99 | object *monster; | |
100 | { | |
101 | short freeze_percent = 99; | |
102 | short i, n; | |
103 | ||
104 | if (rand_percent(12)) { | |
105 | return; | |
106 | } | |
107 | freeze_percent -= (rogue.str_current+(rogue.str_current / 2)); | |
108 | freeze_percent -= ((rogue.exp + ring_exp) * 4); | |
109 | freeze_percent -= (get_armor_class(rogue.armor) * 5); | |
110 | freeze_percent -= (rogue.hp_max / 3); | |
111 | ||
112 | if (freeze_percent > 10) { | |
113 | monster->m_flags |= FREEZING_ROGUE; | |
114 | message("you are frozen", 1); | |
115 | ||
116 | n = get_rand(4, 8); | |
117 | for (i = 0; i < n; i++) { | |
118 | mv_mons(); | |
119 | } | |
120 | if (rand_percent(freeze_percent)) { | |
121 | for (i = 0; i < 50; i++) { | |
122 | mv_mons(); | |
123 | } | |
124 | killed_by((object *)0, HYPOTHERMIA); | |
125 | } | |
126 | message(you_can_move_again, 1); | |
127 | monster->m_flags &= (~FREEZING_ROGUE); | |
128 | } | |
129 | } | |
130 | ||
131 | steal_gold(monster) | |
132 | object *monster; | |
133 | { | |
134 | int amount; | |
135 | ||
136 | if ((rogue.gold <= 0) || rand_percent(10)) { | |
137 | return; | |
138 | } | |
139 | ||
140 | amount = get_rand((cur_level * 10), (cur_level * 30)); | |
141 | ||
142 | if (amount > rogue.gold) { | |
143 | amount = rogue.gold; | |
144 | } | |
145 | rogue.gold -= amount; | |
146 | message("your purse feels lighter", 0); | |
147 | print_stats(STAT_GOLD); | |
148 | disappear(monster); | |
149 | } | |
150 | ||
151 | steal_item(monster) | |
152 | object *monster; | |
153 | { | |
154 | object *obj; | |
155 | short i, n, t; | |
156 | char desc[80]; | |
157 | boolean has_something = 0; | |
158 | ||
159 | if (rand_percent(15)) { | |
160 | return; | |
161 | } | |
162 | obj = rogue.pack.next_object; | |
163 | ||
164 | if (!obj) { | |
165 | goto DSPR; | |
166 | } | |
167 | while (obj) { | |
168 | if (!(obj->in_use_flags & BEING_USED)) { | |
169 | has_something = 1; | |
170 | break; | |
171 | } | |
172 | obj = obj->next_object; | |
173 | } | |
174 | if (!has_something) { | |
175 | goto DSPR; | |
176 | } | |
177 | n = get_rand(0, MAX_PACK_COUNT); | |
178 | obj = rogue.pack.next_object; | |
179 | ||
180 | for (i = 0; i <= n; i++) { | |
181 | obj = obj->next_object; | |
182 | while ((!obj) || (obj->in_use_flags & BEING_USED)) { | |
183 | if (!obj) { | |
184 | obj = rogue.pack.next_object; | |
185 | } else { | |
186 | obj = obj->next_object; | |
187 | } | |
188 | } | |
189 | } | |
190 | (void) strcpy(desc, "she stole "); | |
191 | if (obj->what_is != WEAPON) { | |
192 | t = obj->quantity; | |
193 | obj->quantity = 1; | |
194 | } | |
195 | get_desc(obj, desc+10); | |
196 | message(desc, 0); | |
197 | ||
198 | obj->quantity = ((obj->what_is != WEAPON) ? t : 1); | |
199 | ||
200 | vanish(obj, 0, &rogue.pack); | |
201 | DSPR: | |
202 | disappear(monster); | |
203 | } | |
204 | ||
205 | disappear(monster) | |
206 | object *monster; | |
207 | { | |
208 | short row, col; | |
209 | ||
210 | row = monster->row; | |
211 | col = monster->col; | |
212 | ||
213 | dungeon[row][col] &= ~MONSTER; | |
214 | if (rogue_can_see(row, col)) { | |
215 | mvaddch(row, col, get_dungeon_char(row, col)); | |
216 | } | |
217 | take_from_pack(monster, &level_monsters); | |
218 | free_object(monster); | |
219 | mon_disappeared = 1; | |
220 | } | |
221 | ||
222 | cough_up(monster) | |
223 | object *monster; | |
224 | { | |
225 | object *obj; | |
226 | short row, col, i, n; | |
227 | ||
228 | if (cur_level < max_level) { | |
229 | return; | |
230 | } | |
231 | ||
232 | if (monster->m_flags & STEALS_GOLD) { | |
233 | obj = alloc_object(); | |
234 | obj->what_is = GOLD; | |
235 | obj->quantity = get_rand((cur_level * 15), (cur_level * 30)); | |
236 | } else { | |
237 | if (!rand_percent((int) monster->drop_percent)) { | |
238 | return; | |
239 | } | |
240 | obj = gr_object(); | |
241 | } | |
242 | row = monster->row; | |
243 | col = monster->col; | |
244 | ||
245 | for (n = 0; n <= 5; n++) { | |
246 | for (i = -n; i <= n; i++) { | |
247 | if (try_to_cough(row+n, col+i, obj)) { | |
248 | return; | |
249 | } | |
250 | if (try_to_cough(row-n, col+i, obj)) { | |
251 | return; | |
252 | } | |
253 | } | |
254 | for (i = -n; i <= n; i++) { | |
255 | if (try_to_cough(row+i, col-n, obj)) { | |
256 | return; | |
257 | } | |
258 | if (try_to_cough(row+i, col+n, obj)) { | |
259 | return; | |
260 | } | |
261 | } | |
262 | } | |
263 | free_object(obj); | |
264 | } | |
265 | ||
266 | try_to_cough(row, col, obj) | |
267 | short row, col; | |
268 | object *obj; | |
269 | { | |
270 | if ((row < MIN_ROW) || (row > (DROWS-2)) || (col < 0) || (col>(DCOLS-1))) { | |
271 | return(0); | |
272 | } | |
273 | if ((!(dungeon[row][col] & (OBJECT | STAIRS | TRAP))) && | |
274 | (dungeon[row][col] & (TUNNEL | FLOOR | DOOR))) { | |
275 | place_at(obj, row, col); | |
276 | if (((row != rogue.row) || (col != rogue.col)) && | |
277 | (!(dungeon[row][col] & MONSTER))) { | |
278 | mvaddch(row, col, get_dungeon_char(row, col)); | |
279 | } | |
280 | return(1); | |
281 | } | |
282 | return(0); | |
283 | } | |
284 | ||
285 | seek_gold(monster) | |
286 | object *monster; | |
287 | { | |
288 | short i, j, rn, s; | |
289 | ||
290 | if ((rn = get_room_number(monster->row, monster->col)) < 0) { | |
291 | return(0); | |
292 | } | |
293 | for (i = rooms[rn].top_row+1; i < rooms[rn].bottom_row; i++) { | |
294 | for (j = rooms[rn].left_col+1; j < rooms[rn].right_col; j++) { | |
295 | if ((gold_at(i, j)) && !(dungeon[i][j] & MONSTER)) { | |
296 | monster->m_flags |= CAN_FLIT; | |
297 | s = mon_can_go(monster, i, j); | |
298 | monster->m_flags &= (~CAN_FLIT); | |
299 | if (s) { | |
300 | move_mon_to(monster, i, j); | |
301 | monster->m_flags |= ASLEEP; | |
302 | monster->m_flags &= (~(WAKENS | SEEKS_GOLD)); | |
303 | return(1); | |
304 | } | |
305 | monster->m_flags &= (~SEEKS_GOLD); | |
306 | monster->m_flags |= CAN_FLIT; | |
307 | mv_1_monster(monster, i, j); | |
308 | monster->m_flags &= (~CAN_FLIT); | |
309 | monster->m_flags |= SEEKS_GOLD; | |
310 | return(1); | |
311 | } | |
312 | } | |
313 | } | |
314 | return(0); | |
315 | } | |
316 | ||
317 | gold_at(row, col) | |
318 | short row, col; | |
319 | { | |
320 | if (dungeon[row][col] & OBJECT) { | |
321 | object *obj; | |
322 | ||
323 | if ((obj = object_at(&level_objects, row, col)) && | |
324 | (obj->what_is == GOLD)) { | |
325 | return(1); | |
326 | } | |
327 | } | |
328 | return(0); | |
329 | } | |
330 | ||
331 | check_gold_seeker(monster) | |
332 | object *monster; | |
333 | { | |
334 | monster->m_flags &= (~SEEKS_GOLD); | |
335 | } | |
336 | ||
337 | check_imitator(monster) | |
338 | object *monster; | |
339 | { | |
340 | char msg[80]; | |
341 | ||
342 | if (monster->m_flags & IMITATES) { | |
343 | wake_up(monster); | |
344 | if (!blind) { | |
345 | mvaddch(monster->row, monster->col, | |
346 | get_dungeon_char(monster->row, monster->col)); | |
347 | check_message(); | |
348 | sprintf(msg, "wait, that's a %s!", mon_name(monster)); | |
349 | message(msg, 1); | |
350 | } | |
351 | return(1); | |
352 | } | |
353 | return(0); | |
354 | } | |
355 | ||
356 | imitating(row, col) | |
357 | register short row, col; | |
358 | { | |
359 | if (dungeon[row][col] & MONSTER) { | |
360 | object *object_at(), *monster; | |
361 | ||
362 | if (monster = object_at(&level_monsters, row, col)) { | |
363 | if (monster->m_flags & IMITATES) { | |
364 | return(1); | |
365 | } | |
366 | } | |
367 | } | |
368 | return(0); | |
369 | } | |
370 | ||
371 | sting(monster) | |
372 | object *monster; | |
373 | { | |
374 | short sting_chance = 35; | |
375 | char msg[80]; | |
376 | ||
377 | if ((rogue.str_current <= 3) || sustain_strength) { | |
378 | return; | |
379 | } | |
380 | sting_chance += (6 * (6 - get_armor_class(rogue.armor))); | |
381 | ||
382 | if ((rogue.exp + ring_exp) > 8) { | |
383 | sting_chance -= (6 * ((rogue.exp + ring_exp) - 8)); | |
384 | } | |
385 | if (rand_percent(sting_chance)) { | |
386 | sprintf(msg, "the %s's bite has weakened you", | |
387 | mon_name(monster)); | |
388 | message(msg, 0); | |
389 | rogue.str_current--; | |
390 | print_stats(STAT_STRENGTH); | |
391 | } | |
392 | } | |
393 | ||
394 | drop_level() | |
395 | { | |
396 | int hp; | |
397 | ||
398 | if (rand_percent(80) || (rogue.exp <= 5)) { | |
399 | return; | |
400 | } | |
401 | rogue.exp_points = level_points[rogue.exp-2] - get_rand(9, 29); | |
402 | rogue.exp -= 2; | |
403 | hp = hp_raise(); | |
404 | if ((rogue.hp_current -= hp) <= 0) { | |
405 | rogue.hp_current = 1; | |
406 | } | |
407 | if ((rogue.hp_max -= hp) <= 0) { | |
408 | rogue.hp_max = 1; | |
409 | } | |
410 | add_exp(1, 0); | |
411 | } | |
412 | ||
413 | drain_life() | |
414 | { | |
415 | short n; | |
416 | ||
417 | if (rand_percent(60) || (rogue.hp_max <= 30) || (rogue.hp_current < 10)) { | |
418 | return; | |
419 | } | |
420 | n = get_rand(1, 3); /* 1 Hp, 2 Str, 3 both */ | |
421 | ||
422 | if ((n != 2) || (!sustain_strength)) { | |
423 | message("you feel weaker", 0); | |
424 | } | |
425 | if (n != 2) { | |
426 | rogue.hp_max--; | |
427 | rogue.hp_current--; | |
428 | less_hp++; | |
429 | } | |
430 | if (n != 1) { | |
431 | if ((rogue.str_current > 3) && (!sustain_strength)) { | |
432 | rogue.str_current--; | |
433 | if (coin_toss()) { | |
434 | rogue.str_max--; | |
435 | } | |
436 | } | |
437 | } | |
438 | print_stats((STAT_STRENGTH | STAT_HP)); | |
439 | } | |
440 | ||
441 | m_confuse(monster) | |
442 | object *monster; | |
443 | { | |
444 | char msg[80]; | |
445 | ||
446 | if (!rogue_can_see(monster->row, monster->col)) { | |
447 | return(0); | |
448 | } | |
449 | if (rand_percent(45)) { | |
450 | monster->m_flags &= (~CONFUSES); /* will not confuse the rogue */ | |
451 | return(0); | |
452 | } | |
453 | if (rand_percent(55)) { | |
454 | monster->m_flags &= (~CONFUSES); | |
455 | sprintf(msg, "the gaze of the %s has confused you", mon_name(monster)); | |
456 | message(msg, 1); | |
457 | cnfs(); | |
458 | return(1); | |
459 | } | |
460 | return(0); | |
461 | } | |
462 | ||
463 | flame_broil(monster) | |
464 | object *monster; | |
465 | { | |
466 | short row, col, dir; | |
467 | ||
468 | if ((!mon_sees(monster, rogue.row, rogue.col)) || coin_toss()) { | |
469 | return(0); | |
470 | } | |
471 | row = rogue.row - monster->row; | |
472 | col = rogue.col - monster->col; | |
473 | if (row < 0) { | |
474 | row = -row; | |
475 | } | |
476 | if (col < 0) { | |
477 | col = -col; | |
478 | } | |
479 | if (((row != 0) && (col != 0) && (row != col)) || | |
480 | ((row > 7) || (col > 7))) { | |
481 | return(0); | |
482 | } | |
483 | dir = get_dir(monster->row, monster->col, row, col); | |
484 | bounce(FIRE, dir, monster->row, monster->col, 0); | |
485 | ||
486 | return(1); | |
487 | } | |
488 | ||
489 | get_dir(srow, scol, drow, dcol) | |
490 | short srow, scol, drow, dcol; | |
491 | { | |
492 | if (srow == drow) { | |
493 | if (scol < dcol) { | |
494 | return(RIGHT); | |
495 | } else { | |
496 | return(LEFT); | |
497 | } | |
498 | } | |
499 | if (scol == dcol) { | |
500 | if (srow < drow) { | |
501 | return(DOWN); | |
502 | } else { | |
503 | return(UPWARD); | |
504 | } | |
505 | } | |
506 | if ((srow > drow) && (scol > dcol)) { | |
507 | return(UPLEFT); | |
508 | } | |
509 | if ((srow < drow) && (scol < dcol)) { | |
510 | return(DOWNRIGHT); | |
511 | } | |
512 | if ((srow < drow) && (scol > dcol)) { | |
513 | return(DOWNLEFT); | |
514 | } | |
515 | /*if ((srow > drow) && (scol < dcol)) {*/ | |
516 | return(UPRIGHT); | |
517 | /*}*/ | |
518 | } |