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1 | /* |
2 | * special_hit.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[] = "@(#)spec_hit.c 5.1 (Berkeley) %G%"; | |
15 | #endif /* not lint */ | |
16 | ||
17 | #include "rogue.h" | |
18 | ||
19 | short less_hp = 0; | |
20 | boolean being_held; | |
21 | ||
22 | extern short cur_level, max_level, blind, levitate, ring_exp; | |
23 | extern long level_points[]; | |
24 | extern boolean detect_monster, mon_disappeared; | |
25 | extern boolean sustain_strength, maintain_armor; | |
26 | extern char *you_can_move_again; | |
27 | ||
28 | special_hit(monster) | |
29 | object *monster; | |
30 | { | |
31 | if ((monster->m_flags & CONFUSED) && rand_percent(66)) { | |
32 | return; | |
33 | } | |
34 | if (monster->m_flags & RUSTS) { | |
35 | rust(monster); | |
36 | } | |
37 | if ((monster->m_flags & HOLDS) && !levitate) { | |
38 | being_held = 1; | |
39 | } | |
40 | if (monster->m_flags & FREEZES) { | |
41 | freeze(monster); | |
42 | } | |
43 | if (monster->m_flags & STINGS) { | |
44 | sting(monster); | |
45 | } | |
46 | if (monster->m_flags & DRAINS_LIFE) { | |
47 | drain_life(); | |
48 | } | |
49 | if (monster->m_flags & DROPS_LEVEL) { | |
50 | drop_level(); | |
51 | } | |
52 | if (monster->m_flags & STEALS_GOLD) { | |
53 | steal_gold(monster); | |
54 | } else if (monster->m_flags & STEALS_ITEM) { | |
55 | steal_item(monster); | |
56 | } | |
57 | } | |
58 | ||
59 | rust(monster) | |
60 | object *monster; | |
61 | { | |
62 | if ((!rogue.armor) || (get_armor_class(rogue.armor) <= 1) || | |
63 | (rogue.armor->which_kind == LEATHER)) { | |
64 | return; | |
65 | } | |
66 | if ((rogue.armor->is_protected) || maintain_armor) { | |
67 | if (monster && (!(monster->m_flags & RUST_VANISHED))) { | |
68 | message("the rust vanishes instantly", 0); | |
69 | monster->m_flags |= RUST_VANISHED; | |
70 | } | |
71 | } else { | |
72 | rogue.armor->d_enchant--; | |
73 | message("your armor weakens", 0); | |
74 | print_stats(STAT_ARMOR); | |
75 | } | |
76 | } | |
77 | ||
78 | freeze(monster) | |
79 | object *monster; | |
80 | { | |
81 | short freeze_percent = 99; | |
82 | short i, n; | |
83 | ||
84 | if (rand_percent(12)) { | |
85 | return; | |
86 | } | |
87 | freeze_percent -= (rogue.str_current+(rogue.str_current / 2)); | |
88 | freeze_percent -= ((rogue.exp + ring_exp) * 4); | |
89 | freeze_percent -= (get_armor_class(rogue.armor) * 5); | |
90 | freeze_percent -= (rogue.hp_max / 3); | |
91 | ||
92 | if (freeze_percent > 10) { | |
93 | monster->m_flags |= FREEZING_ROGUE; | |
94 | message("you are frozen", 1); | |
95 | ||
96 | n = get_rand(4, 8); | |
97 | for (i = 0; i < n; i++) { | |
98 | mv_mons(); | |
99 | } | |
100 | if (rand_percent(freeze_percent)) { | |
101 | for (i = 0; i < 50; i++) { | |
102 | mv_mons(); | |
103 | } | |
104 | killed_by((object *)0, HYPOTHERMIA); | |
105 | } | |
106 | message(you_can_move_again, 1); | |
107 | monster->m_flags &= (~FREEZING_ROGUE); | |
108 | } | |
109 | } | |
110 | ||
111 | steal_gold(monster) | |
112 | object *monster; | |
113 | { | |
114 | int amount; | |
115 | ||
116 | if ((rogue.gold <= 0) || rand_percent(10)) { | |
117 | return; | |
118 | } | |
119 | ||
120 | amount = get_rand((cur_level * 10), (cur_level * 30)); | |
121 | ||
122 | if (amount > rogue.gold) { | |
123 | amount = rogue.gold; | |
124 | } | |
125 | rogue.gold -= amount; | |
126 | message("your purse feels lighter", 0); | |
127 | print_stats(STAT_GOLD); | |
128 | disappear(monster); | |
129 | } | |
130 | ||
131 | steal_item(monster) | |
132 | object *monster; | |
133 | { | |
134 | object *obj; | |
135 | short i, n, t; | |
136 | char desc[80]; | |
137 | boolean has_something = 0; | |
138 | ||
139 | if (rand_percent(15)) { | |
140 | return; | |
141 | } | |
142 | obj = rogue.pack.next_object; | |
143 | ||
144 | if (!obj) { | |
145 | goto DSPR; | |
146 | } | |
147 | while (obj) { | |
148 | if (!(obj->in_use_flags & BEING_USED)) { | |
149 | has_something = 1; | |
150 | break; | |
151 | } | |
152 | obj = obj->next_object; | |
153 | } | |
154 | if (!has_something) { | |
155 | goto DSPR; | |
156 | } | |
157 | n = get_rand(0, MAX_PACK_COUNT); | |
158 | obj = rogue.pack.next_object; | |
159 | ||
160 | for (i = 0; i <= n; i++) { | |
161 | obj = obj->next_object; | |
162 | while ((!obj) || (obj->in_use_flags & BEING_USED)) { | |
163 | if (!obj) { | |
164 | obj = rogue.pack.next_object; | |
165 | } else { | |
166 | obj = obj->next_object; | |
167 | } | |
168 | } | |
169 | } | |
170 | (void) strcpy(desc, "she stole "); | |
171 | if (obj->what_is != WEAPON) { | |
172 | t = obj->quantity; | |
173 | obj->quantity = 1; | |
174 | } | |
175 | get_desc(obj, desc+10); | |
176 | message(desc, 0); | |
177 | ||
178 | obj->quantity = ((obj->what_is != WEAPON) ? t : 1); | |
179 | ||
180 | vanish(obj, 0, &rogue.pack); | |
181 | DSPR: | |
182 | disappear(monster); | |
183 | } | |
184 | ||
185 | disappear(monster) | |
186 | object *monster; | |
187 | { | |
188 | short row, col; | |
189 | ||
190 | row = monster->row; | |
191 | col = monster->col; | |
192 | ||
193 | dungeon[row][col] &= ~MONSTER; | |
194 | if (rogue_can_see(row, col)) { | |
195 | mvaddch(row, col, get_dungeon_char(row, col)); | |
196 | } | |
197 | take_from_pack(monster, &level_monsters); | |
198 | free_object(monster); | |
199 | mon_disappeared = 1; | |
200 | } | |
201 | ||
202 | cough_up(monster) | |
203 | object *monster; | |
204 | { | |
205 | object *obj; | |
206 | short row, col, i, n; | |
207 | ||
208 | if (cur_level < max_level) { | |
209 | return; | |
210 | } | |
211 | ||
212 | if (monster->m_flags & STEALS_GOLD) { | |
213 | obj = alloc_object(); | |
214 | obj->what_is = GOLD; | |
215 | obj->quantity = get_rand((cur_level * 15), (cur_level * 30)); | |
216 | } else { | |
217 | if (!rand_percent((int) monster->drop_percent)) { | |
218 | return; | |
219 | } | |
220 | obj = gr_object(); | |
221 | } | |
222 | row = monster->row; | |
223 | col = monster->col; | |
224 | ||
225 | for (n = 0; n <= 5; n++) { | |
226 | for (i = -n; i <= n; i++) { | |
227 | if (try_to_cough(row+n, col+i, obj)) { | |
228 | return; | |
229 | } | |
230 | if (try_to_cough(row-n, col+i, obj)) { | |
231 | return; | |
232 | } | |
233 | } | |
234 | for (i = -n; i <= n; i++) { | |
235 | if (try_to_cough(row+i, col-n, obj)) { | |
236 | return; | |
237 | } | |
238 | if (try_to_cough(row+i, col+n, obj)) { | |
239 | return; | |
240 | } | |
241 | } | |
242 | } | |
243 | free_object(obj); | |
244 | } | |
245 | ||
246 | try_to_cough(row, col, obj) | |
247 | short row, col; | |
248 | object *obj; | |
249 | { | |
250 | if ((row < MIN_ROW) || (row > (DROWS-2)) || (col < 0) || (col>(DCOLS-1))) { | |
251 | return(0); | |
252 | } | |
253 | if ((!(dungeon[row][col] & (OBJECT | STAIRS | TRAP))) && | |
254 | (dungeon[row][col] & (TUNNEL | FLOOR | DOOR))) { | |
255 | place_at(obj, row, col); | |
256 | if (((row != rogue.row) || (col != rogue.col)) && | |
257 | (!(dungeon[row][col] & MONSTER))) { | |
258 | mvaddch(row, col, get_dungeon_char(row, col)); | |
259 | } | |
260 | return(1); | |
261 | } | |
262 | return(0); | |
263 | } | |
264 | ||
265 | seek_gold(monster) | |
266 | object *monster; | |
267 | { | |
268 | short i, j, rn, s; | |
269 | ||
270 | if ((rn = get_room_number(monster->row, monster->col)) < 0) { | |
271 | return(0); | |
272 | } | |
273 | for (i = rooms[rn].top_row+1; i < rooms[rn].bottom_row; i++) { | |
274 | for (j = rooms[rn].left_col+1; j < rooms[rn].right_col; j++) { | |
275 | if ((gold_at(i, j)) && !(dungeon[i][j] & MONSTER)) { | |
276 | monster->m_flags |= CAN_FLIT; | |
277 | s = mon_can_go(monster, i, j); | |
278 | monster->m_flags &= (~CAN_FLIT); | |
279 | if (s) { | |
280 | move_mon_to(monster, i, j); | |
281 | monster->m_flags |= ASLEEP; | |
282 | monster->m_flags &= (~(WAKENS | SEEKS_GOLD)); | |
283 | return(1); | |
284 | } | |
285 | monster->m_flags &= (~SEEKS_GOLD); | |
286 | monster->m_flags |= CAN_FLIT; | |
287 | mv_1_monster(monster, i, j); | |
288 | monster->m_flags &= (~CAN_FLIT); | |
289 | monster->m_flags |= SEEKS_GOLD; | |
290 | return(1); | |
291 | } | |
292 | } | |
293 | } | |
294 | return(0); | |
295 | } | |
296 | ||
297 | gold_at(row, col) | |
298 | short row, col; | |
299 | { | |
300 | if (dungeon[row][col] & OBJECT) { | |
301 | object *obj; | |
302 | ||
303 | if ((obj = object_at(&level_objects, row, col)) && | |
304 | (obj->what_is == GOLD)) { | |
305 | return(1); | |
306 | } | |
307 | } | |
308 | return(0); | |
309 | } | |
310 | ||
311 | check_gold_seeker(monster) | |
312 | object *monster; | |
313 | { | |
314 | monster->m_flags &= (~SEEKS_GOLD); | |
315 | } | |
316 | ||
317 | check_imitator(monster) | |
318 | object *monster; | |
319 | { | |
320 | char msg[80]; | |
321 | ||
322 | if (monster->m_flags & IMITATES) { | |
323 | wake_up(monster); | |
324 | if (!blind) { | |
325 | mvaddch(monster->row, monster->col, | |
326 | get_dungeon_char(monster->row, monster->col)); | |
327 | check_message(); | |
328 | sprintf(msg, "wait, that's a %s!", mon_name(monster)); | |
329 | message(msg, 1); | |
330 | } | |
331 | return(1); | |
332 | } | |
333 | return(0); | |
334 | } | |
335 | ||
336 | imitating(row, col) | |
337 | register short row, col; | |
338 | { | |
339 | if (dungeon[row][col] & MONSTER) { | |
340 | object *object_at(), *monster; | |
341 | ||
342 | if (monster = object_at(&level_monsters, row, col)) { | |
343 | if (monster->m_flags & IMITATES) { | |
344 | return(1); | |
345 | } | |
346 | } | |
347 | } | |
348 | return(0); | |
349 | } | |
350 | ||
351 | sting(monster) | |
352 | object *monster; | |
353 | { | |
354 | short sting_chance = 35; | |
355 | char msg[80]; | |
356 | ||
357 | if ((rogue.str_current <= 3) || sustain_strength) { | |
358 | return; | |
359 | } | |
360 | sting_chance += (6 * (6 - get_armor_class(rogue.armor))); | |
361 | ||
362 | if ((rogue.exp + ring_exp) > 8) { | |
363 | sting_chance -= (6 * ((rogue.exp + ring_exp) - 8)); | |
364 | } | |
365 | if (rand_percent(sting_chance)) { | |
366 | sprintf(msg, "the %s's bite has weakened you", | |
367 | mon_name(monster)); | |
368 | message(msg, 0); | |
369 | rogue.str_current--; | |
370 | print_stats(STAT_STRENGTH); | |
371 | } | |
372 | } | |
373 | ||
374 | drop_level() | |
375 | { | |
376 | int hp; | |
377 | ||
378 | if (rand_percent(80) || (rogue.exp <= 5)) { | |
379 | return; | |
380 | } | |
381 | rogue.exp_points = level_points[rogue.exp-2] - get_rand(9, 29); | |
382 | rogue.exp -= 2; | |
383 | hp = hp_raise(); | |
384 | if ((rogue.hp_current -= hp) <= 0) { | |
385 | rogue.hp_current = 1; | |
386 | } | |
387 | if ((rogue.hp_max -= hp) <= 0) { | |
388 | rogue.hp_max = 1; | |
389 | } | |
390 | add_exp(1, 0); | |
391 | } | |
392 | ||
393 | drain_life() | |
394 | { | |
395 | short n; | |
396 | ||
397 | if (rand_percent(60) || (rogue.hp_max <= 30) || (rogue.hp_current < 10)) { | |
398 | return; | |
399 | } | |
400 | n = get_rand(1, 3); /* 1 Hp, 2 Str, 3 both */ | |
401 | ||
402 | if ((n != 2) || (!sustain_strength)) { | |
403 | message("you feel weaker", 0); | |
404 | } | |
405 | if (n != 2) { | |
406 | rogue.hp_max--; | |
407 | rogue.hp_current--; | |
408 | less_hp++; | |
409 | } | |
410 | if (n != 1) { | |
411 | if ((rogue.str_current > 3) && (!sustain_strength)) { | |
412 | rogue.str_current--; | |
413 | if (coin_toss()) { | |
414 | rogue.str_max--; | |
415 | } | |
416 | } | |
417 | } | |
418 | print_stats((STAT_STRENGTH | STAT_HP)); | |
419 | } | |
420 | ||
421 | m_confuse(monster) | |
422 | object *monster; | |
423 | { | |
424 | char msg[80]; | |
425 | ||
426 | if (!rogue_can_see(monster->row, monster->col)) { | |
427 | return(0); | |
428 | } | |
429 | if (rand_percent(45)) { | |
430 | monster->m_flags &= (~CONFUSES); /* will not confuse the rogue */ | |
431 | return(0); | |
432 | } | |
433 | if (rand_percent(55)) { | |
434 | monster->m_flags &= (~CONFUSES); | |
435 | sprintf(msg, "the gaze of the %s has confused you", mon_name(monster)); | |
436 | message(msg, 1); | |
437 | cnfs(); | |
438 | return(1); | |
439 | } | |
440 | return(0); | |
441 | } | |
442 | ||
443 | flame_broil(monster) | |
444 | object *monster; | |
445 | { | |
446 | short row, col, dir; | |
447 | ||
448 | if ((!mon_sees(monster, rogue.row, rogue.col)) || coin_toss()) { | |
449 | return(0); | |
450 | } | |
451 | row = rogue.row - monster->row; | |
452 | col = rogue.col - monster->col; | |
453 | if (row < 0) { | |
454 | row = -row; | |
455 | } | |
456 | if (col < 0) { | |
457 | col = -col; | |
458 | } | |
459 | if (((row != 0) && (col != 0) && (row != col)) || | |
460 | ((row > 7) || (col > 7))) { | |
461 | return(0); | |
462 | } | |
463 | dir = get_dir(monster->row, monster->col, row, col); | |
464 | bounce(FIRE, dir, monster->row, monster->col, 0); | |
465 | ||
466 | return(1); | |
467 | } | |
468 | ||
469 | get_dir(srow, scol, drow, dcol) | |
470 | short srow, scol, drow, dcol; | |
471 | { | |
472 | if (srow == drow) { | |
473 | if (scol < dcol) { | |
474 | return(RIGHT); | |
475 | } else { | |
476 | return(LEFT); | |
477 | } | |
478 | } | |
479 | if (scol == dcol) { | |
480 | if (srow < drow) { | |
481 | return(DOWN); | |
482 | } else { | |
483 | return(UPWARD); | |
484 | } | |
485 | } | |
486 | if ((srow > drow) && (scol > dcol)) { | |
487 | return(UPLEFT); | |
488 | } | |
489 | if ((srow < drow) && (scol < dcol)) { | |
490 | return(DOWNRIGHT); | |
491 | } | |
492 | if ((srow < drow) && (scol > dcol)) { | |
493 | return(DOWNLEFT); | |
494 | } | |
495 | /*if ((srow > drow) && (scol < dcol)) {*/ | |
496 | return(UPRIGHT); | |
497 | /*}*/ | |
498 | } |