1 | /* |
1 | /* |
2 | * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 | * |
3 | * |
4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
4 | * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
5 | * Copyright (©) 2002 Mark Wedel & Crossfire Development Team |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
6 | * Copyright (©) 1992 Frank Tore Johansen |
7 | * |
7 | * |
8 | * Crossfire TRT is free software: you can redistribute it and/or modify |
8 | * Deliantra is free software: you can redistribute it and/or modify it under |
9 | * it under the terms of the GNU General Public License as published by |
9 | * the terms of the Affero GNU General Public License as published by the |
10 | * the Free Software Foundation, either version 3 of the License, or |
10 | * Free Software Foundation, either version 3 of the License, or (at your |
11 | * (at your option) any later version. |
11 | * option) any later version. |
12 | * |
12 | * |
13 | * This program is distributed in the hope that it will be useful, |
13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * GNU General Public License for more details. |
16 | * GNU General Public License for more details. |
17 | * |
17 | * |
18 | * You should have received a copy of the GNU General Public License |
18 | * You should have received a copy of the Affero GNU General Public License |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
19 | * and the GNU General Public License along with this program. If not, see |
|
|
20 | * <http://www.gnu.org/licenses/>. |
20 | * |
21 | * |
21 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
22 | * The authors can be reached via e-mail to <support@deliantra.net> |
22 | */ |
23 | */ |
23 | |
24 | |
24 | /* This file contains all the code implementing diseases, |
25 | /* This file contains all the code implementing diseases, |
25 | * except for odds and ends in attack.c and in |
26 | * except for odds and ends in attack.c and in |
26 | * living.c |
27 | * living.c |
27 | */ |
28 | */ |
28 | |
29 | |
29 | /* |
30 | /* |
30 | |
31 | |
… | |
… | |
35 | other_arch Creation object created and dropped when symptom moved. |
36 | other_arch Creation object created and dropped when symptom moved. |
36 | title Message When the "disease" "infects" something, it will |
37 | title Message When the "disease" "infects" something, it will |
37 | print "title victim!!!" to the player who owns |
38 | print "title victim!!!" to the player who owns |
38 | the "disease". |
39 | the "disease". |
39 | wc+ Infectiousness How well the plague spreads person-to-person |
40 | wc+ Infectiousness How well the plague spreads person-to-person |
40 | magic+ Range range of infection |
41 | magic+ Range range of infection |
41 | Stats* Disability What stats are reduced by the disease (str con...) |
42 | Stats* Disability What stats are reduced by the disease (str con...) |
42 | maxhp+ Persistence How long the disease can last OUTSIDE the host. |
43 | maxhp+ Persistence How long the disease can last OUTSIDE the host. |
43 | value TimeLeft Counter for persistence |
44 | value TimeLeft Counter for persistence |
44 | dam^ Damage How much damage it does (%?). |
45 | dam^ Damage How much damage it does (%?). |
45 | maxgrace+ Duration How long before the disease is naturally cured. |
46 | maxgrace+ Duration How long before the disease is naturally cured. |
46 | food DurCount Counter for Duration |
47 | food DurCount Counter for Duration |
47 | |
48 | |
48 | speed Speed How often the disease moves. |
49 | speed Speed How often the disease moves. |
49 | last_sp^ Lethargy Percentage of max speed. 10 = 10% speed. |
50 | last_sp^ Lethargy Percentage of max speed. 10 = 10% speed. |
50 | |
51 | |
51 | maxsp^ Mana deplete Saps mana. |
52 | maxsp^ Mana deplete Saps mana. |
52 | ac^ Progressiveness How the diseases increases in severity. |
53 | ac^ Progressiveness How the diseases increases in severity. |
53 | last_eat*^ Deplete food saps food if negative |
54 | last_eat*^ Deplete food saps food if negative |
54 | last_heal GrantImmunity If nonzero, disease does NOT grant immunity |
55 | last_heal GrantImmunity If nonzero, disease does NOT grant immunity |
55 | when it runs out |
56 | when it runs out |
56 | |
57 | |
57 | exp experience experience awarded when plague cured |
58 | exp experience experience awarded when plague cured |
58 | hp*^ ReduceRegen reduces regeneration of disease-bearer |
59 | hp*^ ReduceRegen reduces regeneration of disease-bearer |
59 | sp*^ ReduceSpRegen reduces spellpoint regeneration |
60 | sp*^ ReduceSpRegen reduces spellpoint regeneration |
60 | |
61 | |
61 | name Name Name of the plague |
62 | name Name Name of the plague |
62 | msg message What the plague says when it strikes. |
63 | msg message What the plague says when it strikes. |
63 | race those affected species/race the plague strikes (* = everything) |
64 | race those affected species/race the plague strikes (* = everything) |
64 | level Plague Level General description of the plague's deadliness |
65 | level Plague Level General description of the plague's deadliness |
65 | armour Attenuation reduction in wc per generation of disease. |
66 | armour Attenuation reduction in wc per generation of disease. |
66 | This builds in a self-limiting factor. |
67 | This builds in a self-limiting factor. |
67 | |
|
|
68 | |
68 | |
69 | Explanations: |
69 | Explanations: |
70 | * means this # should be negative to cause adverse effect. |
70 | * means this # should be negative to cause adverse effect. |
71 | + means that this effect is modulated in spells by ldur |
71 | + means that this effect is modulated in spells by ldur |
72 | ^ means that this effect is modulated in spells by ldam |
72 | ^ means that this effect is modulated in spells by ldam |
… | |
… | |
130 | #include <sproto.h> |
130 | #include <sproto.h> |
131 | #include <spells.h> |
131 | #include <spells.h> |
132 | #include <sounds.h> |
132 | #include <sounds.h> |
133 | #include <skills.h> |
133 | #include <skills.h> |
134 | |
134 | |
135 | /* IMPLEMENTATION NOTES |
135 | /* IMPLEMENTATION NOTES |
136 | |
136 | |
137 | Diseases may be contageous. They are objects which exist in a player's |
137 | Diseases may be contageous. They are objects which exist in a player's |
138 | inventory. They themselves do nothing, except modify Symptoms, or |
138 | inventory. They themselves do nothing, except modify Symptoms, or |
139 | spread to other live objects. Symptoms are what actually damage the player: |
139 | spread to other live objects. Symptoms are what actually damage the player: |
140 | these are their own object. */ |
140 | these are their own object. */ |
141 | |
141 | |
142 | /* check if victim is susceptible to disease. */ |
142 | /* grants immunity to plagues we've seen before. */ |
143 | static int |
143 | static int |
144 | is_susceptible_to_disease (object *victim, object *disease) |
144 | grant_immunity (object *disease) |
145 | { |
145 | { |
146 | if (!QUERY_FLAG (victim, FLAG_ALIVE)) |
146 | object *immunity; |
|
|
147 | object *walk; |
|
|
148 | |
|
|
149 | /* Don't give immunity to this disease if last_heal is set. */ |
|
|
150 | if (disease->last_heal) |
147 | return 0; |
151 | return 0; |
148 | |
152 | |
149 | if (strstr (disease->race, "*") && !QUERY_FLAG (victim, FLAG_UNDEAD)) |
153 | /* first, search for an immunity of the same name */ |
|
|
154 | for (walk = disease->env->inv; walk; walk = walk->below) |
|
|
155 | if (disease->name == walk->name && walk->is_immunity ()) |
|
|
156 | { |
|
|
157 | walk->level = disease->level; |
|
|
158 | return 1; /* just update the existing immunity. */ |
|
|
159 | } |
|
|
160 | |
|
|
161 | immunity = archetype::get (shstr_immunity); |
|
|
162 | |
|
|
163 | immunity->name = disease->name; |
|
|
164 | immunity->level = disease->level; |
|
|
165 | immunity->move_block = 0; |
|
|
166 | |
|
|
167 | insert_ob_in_ob (immunity, disease->env); |
|
|
168 | |
150 | return 1; |
169 | return 1; |
|
|
170 | } |
151 | |
171 | |
152 | if ((disease->race == shstr_undead) && QUERY_FLAG (victim, FLAG_UNDEAD)) |
172 | /* argument is a disease */ |
|
|
173 | static object * |
|
|
174 | find_symptom (object *disease) |
|
|
175 | { |
|
|
176 | /* check the inventory for symptoms */ |
|
|
177 | for (object *walk = disease->env->inv; walk; walk = walk->below) |
|
|
178 | if (walk->name == disease->name && walk->type == SYMPTOM) |
153 | return 1; |
179 | return walk; |
154 | |
180 | |
155 | if ((victim->race && strstr (disease->race, victim->race)) || strstr (disease->race, victim->name)) |
|
|
156 | return 1; |
|
|
157 | |
|
|
158 | return 0; |
181 | return NULL; |
159 | } |
|
|
160 | |
|
|
161 | int |
|
|
162 | move_disease (object *disease) |
|
|
163 | { |
|
|
164 | /* first task is to determine if the disease is inside or outside of someone. |
|
|
165 | * If outside, we decrement 'value' until we're gone. |
|
|
166 | */ |
|
|
167 | |
|
|
168 | if (!disease->env) |
|
|
169 | { /* we're outside of someone */ |
|
|
170 | if (disease->stats.maxhp > 0) |
|
|
171 | disease->value--; |
|
|
172 | |
|
|
173 | if (!disease->value) |
|
|
174 | { |
|
|
175 | disease->destroy (); |
|
|
176 | return 1; |
|
|
177 | } |
|
|
178 | } |
|
|
179 | else |
|
|
180 | { |
|
|
181 | /* if we're inside a person, have the disease run its course */ |
|
|
182 | /* negative/zero food denotes "perpetual" diseases. */ |
|
|
183 | if (disease->stats.food > 0) |
|
|
184 | { |
|
|
185 | disease->stats.food--; |
|
|
186 | |
|
|
187 | if (!disease->stats.food) |
|
|
188 | { |
|
|
189 | remove_symptoms (disease); /* remove the symptoms of this disease */ |
|
|
190 | grant_immunity (disease); |
|
|
191 | disease->destroy (); |
|
|
192 | return 1; |
|
|
193 | } |
|
|
194 | } |
|
|
195 | } |
|
|
196 | |
|
|
197 | /* check to see if we infect others */ |
|
|
198 | check_infection (disease); |
|
|
199 | |
|
|
200 | /* impose or modify the symptoms of the disease */ |
|
|
201 | if (disease->env && is_susceptible_to_disease (disease->env, disease)) |
|
|
202 | do_symptoms (disease); |
|
|
203 | |
|
|
204 | return 0; |
|
|
205 | } |
182 | } |
206 | |
183 | |
207 | /* remove any symptoms of disease |
184 | /* remove any symptoms of disease |
208 | * Modified by MSW 2003-03-28 do try to find all the symptom the |
185 | * Modified by MSW 2003-03-28 do try to find all the symptom the |
209 | * player may have - I think through some odd interactoins with |
186 | * player may have - I think through some odd interactoins with |
210 | * disease level and player level and whatnot, a player could get |
187 | * disease level and player level and whatnot, a player could get |
211 | * more than one symtpom to a disease. |
188 | * more than one symtpom to a disease. |
212 | */ |
189 | */ |
213 | |
190 | static int |
214 | int |
|
|
215 | remove_symptoms (object *disease) |
191 | remove_symptoms (object *disease) |
216 | { |
192 | { |
217 | object *symptom, *victim = NULL; |
193 | object *symptom, *victim = NULL; |
218 | |
194 | |
219 | while ((symptom = find_symptom (disease)) != NULL) |
195 | while ((symptom = find_symptom (disease)) != NULL) |
… | |
… | |
228 | victim->update_stats (); |
204 | victim->update_stats (); |
229 | |
205 | |
230 | return 0; |
206 | return 0; |
231 | } |
207 | } |
232 | |
208 | |
233 | /* argument is a disease */ |
|
|
234 | object * |
|
|
235 | find_symptom (object *disease) |
|
|
236 | { |
|
|
237 | /* check the inventory for symptoms */ |
|
|
238 | for (object *walk = disease->env->inv; walk; walk = walk->below) |
|
|
239 | if (walk->name == disease->name && walk->type == SYMPTOM) |
|
|
240 | return walk; |
|
|
241 | |
|
|
242 | return NULL; |
|
|
243 | } |
|
|
244 | |
|
|
245 | /* searches around for more victims to infect */ |
209 | /* searches around for more victims to infect */ |
246 | int |
210 | static int |
247 | check_infection (object *disease) |
211 | check_infection (object *disease) |
248 | { |
212 | { |
249 | int x, y, range, mflags; |
|
|
250 | maptile *map, *map2; |
|
|
251 | object *tmp; |
|
|
252 | |
|
|
253 | range = abs (disease->magic); |
213 | int range = abs (disease->magic); |
254 | |
214 | |
255 | if (disease->env) |
215 | object *op = disease->outer_env_or_self (); |
256 | { |
|
|
257 | x = disease->env->x; |
|
|
258 | y = disease->env->y; |
|
|
259 | map = disease->env->map; |
|
|
260 | } |
|
|
261 | else |
|
|
262 | { |
|
|
263 | x = disease->x; |
|
|
264 | y = disease->y; |
|
|
265 | map = disease->map; |
|
|
266 | } |
|
|
267 | |
216 | |
268 | if (!map) |
217 | if (!op->is_on_map ()) |
269 | return 0; |
218 | return 0; |
270 | |
219 | |
271 | for (int i = x - range; i <= x + range; i++) |
220 | dynbuf buf; |
272 | for (int j = y - range; j <= y + range; j++) |
221 | unordered_mapwalk (buf, op, -range, -range, range, range) |
273 | { |
222 | { |
274 | sint16 i2, j2; |
223 | mapspace &ms = m->at (nx, ny); |
275 | mflags = get_map_flags (map, &map2, i, j, &i2, &j2); |
|
|
276 | |
224 | |
277 | if (!(mflags & P_OUT_OF_MAP) && (mflags & P_IS_ALIVE)) |
225 | if (ms.flags () & P_IS_ALIVE) |
278 | for (tmp = GET_MAP_OB (map2, i2, j2); tmp; tmp = tmp->above) |
226 | for (object *tmp = ms.bot; tmp; tmp = tmp->above) |
279 | infect_object (tmp, disease, 0); |
227 | infect_object (tmp, disease, 0); |
280 | } |
228 | } |
281 | |
229 | |
282 | return 1; |
230 | return 1; |
283 | } |
231 | } |
284 | |
232 | |
285 | /* check to see if an object is infectable: |
233 | /* check if victim is susceptible to disease. */ |
286 | * objects with immunity aren't infectable. |
234 | static int |
287 | * objects already infected aren't infectable. |
235 | is_susceptible_to_disease (object *victim, object *disease) |
288 | * dead objects aren't infectable. |
|
|
289 | * undead objects are infectible only if specifically named. |
|
|
290 | */ |
|
|
291 | int |
|
|
292 | infect_object (object *victim, object *disease, int force) |
|
|
293 | { |
236 | { |
294 | object *tmp; |
237 | if (!victim->flag [FLAG_ALIVE]) |
295 | object *new_disease; |
|
|
296 | |
|
|
297 | /* don't infect inanimate objects */ |
|
|
298 | if (!QUERY_FLAG (victim, FLAG_MONSTER) && !(victim->type == PLAYER)) |
|
|
299 | return 0; |
238 | return 0; |
300 | |
239 | |
301 | /* check and see if victim can catch disease: diseases |
240 | if (victim->flag [FLAG_WIZ]) |
302 | * are specific |
|
|
303 | */ |
|
|
304 | if (!is_susceptible_to_disease (victim, disease)) |
|
|
305 | return 0; |
241 | return 0; |
306 | |
242 | |
307 | /* roll the dice on infection before doing the inventory check! */ |
243 | if (disease->race.contains ("*") && !victim->flag [FLAG_UNDEAD]) |
308 | if (!force && (random_roll (0, 126, victim, PREFER_HIGH) >= disease->stats.wc)) |
|
|
309 | return 0; |
244 | return 1; |
310 | |
245 | |
311 | /* do an immunity check */ |
246 | if ((disease->race == shstr_undead) && victim->flag [FLAG_UNDEAD]) |
312 | |
|
|
313 | /* There used to (IMO) be a flaw in the below - it used to be the case |
|
|
314 | * that if level check was done for both immunity and disease. This could |
|
|
315 | * result in a person with multiple afflictions of the same disease |
|
|
316 | * (eg, level 1 cold, level 2 cold, level 3 cold, etc), as long as |
|
|
317 | * they were cast in that same order. Instead, change it so that |
|
|
318 | * if you diseased, you can't get diseased more. |
|
|
319 | */ |
|
|
320 | |
|
|
321 | for (tmp = victim->head_ ()->inv; tmp; tmp = tmp->below) |
|
|
322 | if (tmp->type == SIGN && tmp->name == disease->name && tmp->level >= disease->level) |
|
|
323 | return 0; /* Immune! */ |
|
|
324 | else if (tmp->type == DISEASE && tmp->name == disease->name) |
|
|
325 | return 0; /* already diseased */ |
|
|
326 | |
|
|
327 | /* If we've gotten this far, go ahead and infect the victim. */ |
|
|
328 | |
|
|
329 | new_disease = disease->clone (); |
|
|
330 | |
|
|
331 | new_disease->stats.food = disease->stats.maxgrace; |
|
|
332 | new_disease->value = disease->stats.maxhp; |
|
|
333 | new_disease->stats.wc -= disease->last_grace; /* self-limiting factor */ |
|
|
334 | |
|
|
335 | /* This appears to be a horrible case of overloading 'NO_PASS' |
|
|
336 | * for meaning in the diseases. |
|
|
337 | */ |
|
|
338 | new_disease->move_block = 0; |
|
|
339 | |
|
|
340 | // insert before setting the owner |
|
|
341 | victim->head_ ()->insert (new_disease); |
|
|
342 | |
|
|
343 | if (disease->owner) |
|
|
344 | new_disease->set_owner (disease->owner); |
|
|
345 | else if (object *pl = disease->in_player ()) |
|
|
346 | /* for diseases which are passed by hitting, set owner and skill */ |
|
|
347 | new_disease->set_owner (pl); |
|
|
348 | |
|
|
349 | if (new_disease->owner && new_disease->owner->type == PLAYER) |
|
|
350 | { |
|
|
351 | const char *buf; |
|
|
352 | |
|
|
353 | /* if the disease has a title, it has a special infection message |
|
|
354 | * This messages is printed in the form MESSAGE victim |
|
|
355 | */ |
|
|
356 | if (new_disease->title) |
|
|
357 | buf = format ("%s %s!!", &disease->title, &victim->name); |
|
|
358 | else |
|
|
359 | buf = format ("You infect %s with your disease, %s!", &victim->name, &new_disease->name); |
|
|
360 | |
|
|
361 | if (victim->type == PLAYER) |
|
|
362 | new_draw_info (NDI_UNIQUE | NDI_RED, 0, new_disease->owner, buf); |
|
|
363 | else |
|
|
364 | new_draw_info (0, 4, new_disease->owner, buf); |
|
|
365 | } |
|
|
366 | |
|
|
367 | if (victim->type == PLAYER) |
|
|
368 | new_draw_info (NDI_UNIQUE | NDI_RED, 0, victim, "You suddenly feel ill."); |
|
|
369 | |
|
|
370 | return 1; |
247 | return 1; |
|
|
248 | |
|
|
249 | if ((victim->race && disease->race.contains (victim->race)) || disease->race.contains (victim->name)) |
|
|
250 | return 1; |
|
|
251 | |
|
|
252 | return 0; |
371 | } |
253 | } |
372 | |
254 | |
373 | /* this function monitors the symptoms caused by the disease (if any), |
255 | /* this function monitors the symptoms caused by the disease (if any), |
374 | causes symptoms, and modifies existing symptoms in the case of |
256 | causes symptoms, and modifies existing symptoms in the case of |
375 | existing diseases. */ |
257 | existing diseases. */ |
376 | int |
258 | static int |
377 | do_symptoms (object *disease) |
259 | do_symptoms (object *disease) |
378 | { |
260 | { |
379 | object *symptom; |
261 | object *symptom; |
380 | object *victim; |
262 | object *victim; |
381 | object *tmp; |
263 | object *tmp; |
… | |
… | |
406 | return 0; |
288 | return 0; |
407 | |
289 | |
408 | /* check for an actual immunity */ |
290 | /* check for an actual immunity */ |
409 | /* do an immunity check */ |
291 | /* do an immunity check */ |
410 | for (tmp = victim->head_ ()->inv; tmp; tmp = tmp->below) |
292 | for (tmp = victim->head_ ()->inv; tmp; tmp = tmp->below) |
411 | if (tmp->type == SIGN) /* possibly an immunity, or diseased */ |
293 | if (tmp->name == disease->name && tmp->is_immunity ()) /* possibly an immunity, or diseased */ |
412 | if (tmp->name == disease->name && tmp->level >= disease->level) |
294 | if (tmp->level >= disease->level) |
413 | return 0; /* Immune! */ |
295 | return 0; /* Immune! */ |
414 | |
296 | |
415 | object *new_symptom = get_archetype ("symptom"); |
297 | object *new_symptom = archetype::get (shstr_symptom); |
416 | |
298 | |
417 | /* Something special done with dam. We want diseases to be more |
299 | /* Something special done with dam. We want diseases to be more |
418 | * random in what they'll kill, so we'll make the damage they |
300 | * random in what they'll kill, so we'll make the damage they |
419 | * do random, note, this has a weird effect with progressive diseases. |
301 | * do random, note, this has a weird effect with progressive diseases. |
420 | */ |
302 | */ |
… | |
… | |
435 | new_symptom->stats.food = new_symptom->stats.maxgrace; |
317 | new_symptom->stats.food = new_symptom->stats.maxgrace; |
436 | |
318 | |
437 | new_symptom->name = new_symptom->name_pl = disease->name; |
319 | new_symptom->name = new_symptom->name_pl = disease->name; |
438 | |
320 | |
439 | new_symptom->level = disease->level; |
321 | new_symptom->level = disease->level; |
440 | new_symptom->speed = disease->speed; |
|
|
441 | new_symptom->value = 0; |
322 | new_symptom->value = 0; |
|
|
323 | |
|
|
324 | new_symptom->set_speed (disease->speed); |
442 | |
325 | |
443 | for (int i = 0; i < NUM_STATS; ++i) |
326 | for (int i = 0; i < NUM_STATS; ++i) |
444 | new_symptom->stats.stat (i) = disease->stats.stat (i); |
327 | new_symptom->stats.stat (i) = disease->stats.stat (i); |
445 | |
328 | |
446 | new_symptom->stats.sp = disease->stats.sp; |
329 | new_symptom->stats.sp = disease->stats.sp; |
… | |
… | |
487 | symptom->msg = disease->msg; |
370 | symptom->msg = disease->msg; |
488 | symptom->attacktype = disease->attacktype; |
371 | symptom->attacktype = disease->attacktype; |
489 | symptom->other_arch = disease->other_arch; |
372 | symptom->other_arch = disease->other_arch; |
490 | } |
373 | } |
491 | |
374 | |
492 | SET_FLAG (symptom, FLAG_APPLIED); |
375 | symptom->set_flag (FLAG_APPLIED); |
493 | victim->update_stats (); |
376 | victim->update_stats (); |
494 | |
377 | |
495 | return 1; |
378 | return 1; |
496 | } |
379 | } |
497 | |
380 | |
498 | /* grants immunity to plagues we've seen before. */ |
|
|
499 | int |
381 | int |
500 | grant_immunity (object *disease) |
382 | move_disease (object *disease) |
501 | { |
383 | { |
502 | object *immunity; |
384 | /* First task is to determine if the disease is inside or outside of someone. |
|
|
385 | * If outside, we decrement 'value' until we're gone. |
|
|
386 | */ |
|
|
387 | |
|
|
388 | if (!disease->env) |
|
|
389 | { /* we're outside of someone */ |
|
|
390 | if (disease->stats.maxhp > 0) |
|
|
391 | disease->value--; |
|
|
392 | |
|
|
393 | if (!disease->value) |
|
|
394 | { |
|
|
395 | disease->destroy (); |
|
|
396 | return 1; |
|
|
397 | } |
|
|
398 | } |
|
|
399 | else |
|
|
400 | { |
|
|
401 | /* if we're inside a person, have the disease run its course */ |
|
|
402 | /* negative/zero food denotes "perpetual" diseases. */ |
|
|
403 | if (disease->stats.food > 0) |
|
|
404 | { |
|
|
405 | disease->stats.food--; |
|
|
406 | |
|
|
407 | if (!disease->stats.food) |
|
|
408 | { |
|
|
409 | remove_symptoms (disease); /* remove the symptoms of this disease */ |
|
|
410 | grant_immunity (disease); |
|
|
411 | disease->destroy (); |
|
|
412 | return 1; |
|
|
413 | } |
|
|
414 | } |
|
|
415 | } |
|
|
416 | |
|
|
417 | /* check to see if we infect others */ |
|
|
418 | check_infection (disease); |
|
|
419 | |
|
|
420 | /* impose or modify the symptoms of the disease */ |
|
|
421 | if (disease->env && is_susceptible_to_disease (disease->env, disease)) |
|
|
422 | do_symptoms (disease); |
|
|
423 | |
|
|
424 | return 0; |
|
|
425 | } |
|
|
426 | |
|
|
427 | /* check to see if an object is infectable: |
|
|
428 | * objects with immunity aren't infectable. |
|
|
429 | * objects already infected aren't infectable. |
|
|
430 | * dead objects aren't infectable. |
|
|
431 | * undead objects are infectible only if specifically named. |
|
|
432 | */ |
|
|
433 | int |
|
|
434 | infect_object (object *victim, object *disease, int force) |
|
|
435 | { |
503 | object *walk; |
436 | object *tmp; |
|
|
437 | object *new_disease; |
504 | |
438 | |
505 | /* Don't give immunity to this disease if last_heal is set. */ |
439 | /* don't infect inanimate objects */ |
506 | if (disease->last_heal) |
440 | if (!victim->flag [FLAG_MONSTER] && !(victim->type == PLAYER)) |
507 | return 0; |
441 | return 0; |
508 | |
442 | |
509 | /* first, search for an immunity of the same name */ |
443 | /* check and see if victim can catch disease: diseases |
510 | for (walk = disease->env->inv; walk; walk = walk->below) |
444 | * are specific |
511 | if (walk->type == 98 && disease->name == walk->name) |
445 | */ |
|
|
446 | if (!is_susceptible_to_disease (victim, disease)) |
|
|
447 | return 0; |
|
|
448 | |
|
|
449 | /* roll the dice on infection before doing the inventory check! */ |
|
|
450 | if (!force && (random_roll (0, 126, victim, PREFER_HIGH) >= disease->stats.wc)) |
|
|
451 | return 0; |
|
|
452 | |
|
|
453 | /* do an immunity check */ |
|
|
454 | |
|
|
455 | /* There used to (IMO) be a flaw in the below - it used to be the case |
|
|
456 | * that if level check was done for both immunity and disease. This could |
|
|
457 | * result in a person with multiple afflictions of the same disease |
|
|
458 | * (eg, level 1 cold, level 2 cold, level 3 cold, etc), as long as |
|
|
459 | * they were cast in that same order. Instead, change it so that |
|
|
460 | * if you diseased, you can't get diseased more. |
|
|
461 | */ |
|
|
462 | |
|
|
463 | for (tmp = victim->head_ ()->inv; tmp; tmp = tmp->below) |
|
|
464 | if (tmp->name == disease->name && tmp->is_immunity () && tmp->level >= disease->level) |
|
|
465 | return 0; /* Immune! */ |
|
|
466 | else if (tmp->type == DISEASE && tmp->name == disease->name) |
|
|
467 | return 0; /* already diseased */ |
|
|
468 | |
|
|
469 | /* If we've gotten this far, go ahead and infect the victim. */ |
|
|
470 | |
|
|
471 | new_disease = disease->clone (); |
|
|
472 | |
|
|
473 | new_disease->stats.food = disease->stats.maxgrace; |
|
|
474 | new_disease->value = disease->stats.maxhp; |
|
|
475 | new_disease->stats.wc -= disease->last_grace; /* self-limiting factor */ |
|
|
476 | |
|
|
477 | /* This appears to be a horrible case of overloading 'NO_PASS' |
|
|
478 | * for meaning in the diseases. |
|
|
479 | */ |
|
|
480 | new_disease->move_block = 0; |
|
|
481 | |
|
|
482 | // insert before setting the owner |
|
|
483 | victim->head_ ()->insert (new_disease); |
|
|
484 | |
|
|
485 | if (disease->owner) |
|
|
486 | new_disease->set_owner (disease->owner); |
|
|
487 | else if (object *pl = disease->in_player ()) |
|
|
488 | /* for diseases which are passed by hitting, set owner and skill */ |
|
|
489 | new_disease->set_owner (pl); |
|
|
490 | |
|
|
491 | if (INVOKE_OBJECT (INFECT, victim, ARG_OBJECT (disease), ARG_OBJECT (new_disease))) |
|
|
492 | return 1; |
|
|
493 | |
|
|
494 | if (new_disease->owner && new_disease->owner->type == PLAYER) |
512 | { |
495 | { |
513 | walk->level = disease->level; |
496 | const char *buf; |
514 | return 1; /* just update the existing immunity. */ |
497 | |
|
|
498 | /* if the disease has a title, it has a special infection message |
|
|
499 | * This messages is printed in the form MESSAGE victim |
|
|
500 | */ |
|
|
501 | if (new_disease->title) |
|
|
502 | buf = format ("%s %s!!", &disease->title, &victim->name); |
|
|
503 | else |
|
|
504 | buf = format ("You infect %s with your disease, %s!", &victim->name, &new_disease->name); |
|
|
505 | |
|
|
506 | if (victim->type == PLAYER) |
|
|
507 | new_draw_info (NDI_UNIQUE | NDI_RED, 0, new_disease->owner, buf); |
|
|
508 | else |
|
|
509 | new_draw_info (0, 4, new_disease->owner, buf); |
515 | } |
510 | } |
516 | |
511 | |
517 | immunity = get_archetype ("immunity"); |
512 | if (victim->type == PLAYER) |
518 | |
513 | new_draw_info (NDI_UNIQUE | NDI_RED, 0, victim, "You suddenly feel ill."); |
519 | immunity->name = disease->name; |
|
|
520 | immunity->level = disease->level; |
|
|
521 | immunity->move_block = 0; |
|
|
522 | |
|
|
523 | insert_ob_in_ob (immunity, disease->env); |
|
|
524 | |
514 | |
525 | return 1; |
515 | return 1; |
526 | } |
516 | } |
527 | |
517 | |
528 | /* make the symptom do the nasty things it does */ |
518 | /* make the symptom do the nasty things it does */ |
529 | int |
519 | int |
530 | move_symptom (object *symptom) |
520 | move_symptom (object *symptom) |
531 | { |
521 | { |
532 | object *victim = symptom->env; |
522 | object *victim = symptom->env; |
533 | object *new_ob; |
|
|
534 | int sp_reduce; |
|
|
535 | |
523 | |
536 | if (!victim || !victim->map) |
524 | if (!victim || !victim->map) |
537 | { /* outside a monster/player, die immediately */ |
525 | { /* outside a monster/player, die immediately */ |
538 | symptom->destroy (); |
526 | symptom->destroy (); |
539 | return 0; |
527 | return 0; |
540 | } |
528 | } |
541 | |
529 | |
|
|
530 | /* create the symptom "other arch" object and drop it here |
|
|
531 | * under every part of the monster |
|
|
532 | * The victim may well have died. |
|
|
533 | */ |
|
|
534 | if (victim->map) |
|
|
535 | { |
|
|
536 | victim->play_sound (symptom->sound); |
|
|
537 | |
|
|
538 | if (symptom->other_arch) |
|
|
539 | for (object *tmp = victim->head_ (); tmp; tmp = tmp->more) |
|
|
540 | { |
|
|
541 | object *new_ob = symptom->other_arch->instance (); |
|
|
542 | new_ob->x = tmp->x; |
|
|
543 | new_ob->y = tmp->y; |
|
|
544 | new_ob->map = victim->map; |
|
|
545 | insert_ob_in_map (new_ob, victim->map, victim, 0); |
|
|
546 | } |
|
|
547 | } |
|
|
548 | |
|
|
549 | int damage = |
542 | if (symptom->stats.dam > 0) |
550 | symptom->stats.dam > 0 |
|
|
551 | ? symptom->stats.dam |
|
|
552 | : max (1, victim->stats.maxhp * -symptom->stats.dam / 100); |
|
|
553 | |
543 | hit_player (victim, symptom->stats.dam, symptom, symptom->attacktype, 1); |
554 | hit_player (victim, damage, symptom, symptom->attacktype, 1); |
544 | else |
|
|
545 | hit_player (victim, max (1, -victim->stats.maxhp * symptom->stats.dam / 100.0), symptom, symptom->attacktype, 1); |
|
|
546 | |
555 | |
|
|
556 | int sp_reduce = |
547 | if (symptom->stats.maxsp > 0) |
557 | symptom->stats.maxsp > 0 |
548 | sp_reduce = symptom->stats.maxsp; |
558 | ? symptom->stats.maxsp |
549 | else |
|
|
550 | sp_reduce = max (1, victim->stats.maxsp * symptom->stats.maxsp / 100.0); |
559 | : max (1, victim->stats.maxsp * -symptom->stats.maxsp / 100); |
551 | |
560 | |
552 | victim->stats.sp = max (0, victim->stats.sp - sp_reduce); |
561 | victim->stats.sp = max (0, victim->stats.sp - sp_reduce); |
553 | |
|
|
554 | /* create the symptom "other arch" object and drop it here |
|
|
555 | * under every part of the monster |
|
|
556 | * The victim may well have died. |
|
|
557 | */ |
|
|
558 | if (symptom->other_arch && victim->map) |
|
|
559 | for (object *tmp = victim->head_ (); tmp; tmp = tmp->more) |
|
|
560 | { |
|
|
561 | new_ob = arch_to_object (symptom->other_arch); |
|
|
562 | new_ob->x = tmp->x; |
|
|
563 | new_ob->y = tmp->y; |
|
|
564 | new_ob->map = victim->map; |
|
|
565 | insert_ob_in_map (new_ob, victim->map, victim, 0); |
|
|
566 | } |
|
|
567 | |
562 | |
568 | new_draw_info (NDI_UNIQUE | NDI_RED, 0, victim, symptom->msg); |
563 | new_draw_info (NDI_UNIQUE | NDI_RED, 0, victim, symptom->msg); |
569 | |
564 | |
570 | return 1; |
565 | return 1; |
571 | } |
566 | } |
… | |
… | |
581 | infect_object (victim, disease, 0); |
576 | infect_object (victim, disease, 0); |
582 | |
577 | |
583 | return 1; |
578 | return 1; |
584 | } |
579 | } |
585 | |
580 | |
586 | // find a disease in someone |
|
|
587 | object * |
|
|
588 | find_disease (object *victim) |
|
|
589 | { |
|
|
590 | for (object *disease = victim->inv; disease; disease = disease->below) |
|
|
591 | if (disease->type == DISEASE) |
|
|
592 | return disease; |
|
|
593 | |
|
|
594 | return 0; |
|
|
595 | } |
|
|
596 | |
|
|
597 | /* do the cure disease stuff, from the spell "cure disease" */ |
581 | /* do the cure disease stuff, from the spell "cure disease" */ |
598 | int |
582 | int |
599 | cure_disease (object *sufferer, object *caster) |
583 | cure_disease (object *sufferer, object *caster, object *spell) |
600 | { |
584 | { |
601 | object *disease, *next; |
585 | object *disease, *next; |
602 | int casting_level; |
|
|
603 | int cure = 0; |
586 | int cure = 0; |
604 | |
587 | |
605 | if (caster) |
|
|
606 | casting_level = caster->level; |
|
|
607 | else |
|
|
608 | casting_level = 1000; /* if null caster, CURE all. */ |
588 | int casting_level = caster ? caster->level : 1000; /* if null caster, CURE all. */ |
609 | |
589 | |
610 | for (disease = sufferer->inv; disease; disease = next) |
590 | for (disease = sufferer->inv; disease; disease = next) |
611 | { |
591 | { |
612 | next = disease->below; |
592 | next = disease->below; |
613 | |
593 | |
… | |
… | |
621 | if ((casting_level >= disease->level) || (!(random_roll (0, (disease->level - casting_level - 1), caster, PREFER_LOW)))) |
601 | if ((casting_level >= disease->level) || (!(random_roll (0, (disease->level - casting_level - 1), caster, PREFER_LOW)))) |
622 | { |
602 | { |
623 | remove_symptoms (disease); |
603 | remove_symptoms (disease); |
624 | cure = 1; |
604 | cure = 1; |
625 | |
605 | |
626 | if (caster) |
606 | if (caster && spell) |
627 | change_exp (caster, disease->stats.exp, caster->chosen_skill ? caster->chosen_skill->skill : (const char *) 0, 0); |
607 | change_exp (caster, disease->stats.exp, spell->skill, SK_EXP_SKILL_ONLY); |
628 | |
608 | |
629 | disease->destroy (); |
609 | disease->destroy (); |
630 | } |
610 | } |
631 | } |
611 | } |
632 | } |
612 | } |
… | |
… | |
641 | } |
621 | } |
642 | |
622 | |
643 | return 1; |
623 | return 1; |
644 | } |
624 | } |
645 | |
625 | |
|
|
626 | #if 0 // unused, but seems interesting |
646 | /* reduces disease progression: reduce_symptoms |
627 | /* reduces disease progression: reduce_symptoms |
647 | * return true if we actually reduce a disease. |
628 | * return true if we actually reduce a disease. |
648 | */ |
629 | */ |
649 | int |
630 | static int |
650 | reduce_symptoms (object *sufferer, int reduction) |
631 | reduce_symptoms (object *sufferer, int reduction) |
651 | { |
632 | { |
652 | object *walk; |
633 | object *walk; |
653 | int success = 0; |
634 | int success = 0; |
654 | |
635 | |
… | |
… | |
670 | if (success) |
651 | if (success) |
671 | new_draw_info (NDI_UNIQUE, 0, sufferer, "Your illness seems less severe."); |
652 | new_draw_info (NDI_UNIQUE, 0, sufferer, "Your illness seems less severe."); |
672 | |
653 | |
673 | return success; |
654 | return success; |
674 | } |
655 | } |
|
|
656 | #endif |