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Comparing deliantra/server/server/disease.C (file contents):
Revision 1.16 by pippijn, Sat Jan 6 14:42:30 2007 UTC vs.
Revision 1.31 by root, Tue Aug 7 22:57:57 2007 UTC

1/* 1/*
2 CrossFire, A Multiplayer game for X-windows 2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3 3 *
4 Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
5 Copyright (C) 2002 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 7 *
8 This program is free software; you can redistribute it and/or modify 8 * Crossfire TRT is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version. 11 * (at your 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 GNU General Public License
19 along with this program; if not, write to the Free Software 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 *
21
22 The authors can be reached via e-mail to <crossfire@schmorp.de> 21 * The authors can be reached via e-mail to <crossfire@schmorp.de>
23*/ 22 */
24 23
25/* This file contains all the code implementing diseases, 24/* This file contains all the code implementing diseases,
26 except for odds and ends in attack.c and in 25 * except for odds and ends in attack.c and in
27 living.c*/ 26 * living.c
28 27 */
29
30 28
31/* 29/*
32 30
33For DISEASES: 31For DISEASES:
34Stat Property Definition 32Stat Property Definition
… …
149 return 0; 147 return 0;
150 148
151 if (strstr (disease->race, "*") && !QUERY_FLAG (victim, FLAG_UNDEAD)) 149 if (strstr (disease->race, "*") && !QUERY_FLAG (victim, FLAG_UNDEAD))
152 return 1; 150 return 1;
153 151
154 if ((disease->race == undead_name) && QUERY_FLAG (victim, FLAG_UNDEAD)) 152 if ((disease->race == shstr_undead) && QUERY_FLAG (victim, FLAG_UNDEAD))
155 return 1; 153 return 1;
156 154
157 if ((victim->race && strstr (disease->race, victim->race)) || strstr (disease->race, victim->name)) 155 if ((victim->race && strstr (disease->race, victim->race)) || strstr (disease->race, victim->name))
158 return 1; 156 return 1;
159 157
… …
165{ 163{
166 /* first task is to determine if the disease is inside or outside of someone. 164 /* first task is to determine if the disease is inside or outside of someone.
167 * If outside, we decrement 'value' until we're gone. 165 * If outside, we decrement 'value' until we're gone.
168 */ 166 */
169 167
170 if (disease->env == NULL) 168 if (!disease->env)
171 { /* we're outside of someone */ 169 { /* we're outside of someone */
172 if (disease->stats.maxhp > 0) 170 if (disease->stats.maxhp > 0)
173 disease->value--; 171 disease->value--;
174 172
175 if (disease->value == 0) 173 if (!disease->value)
176 { 174 {
177 disease->destroy (); 175 disease->destroy ();
178 return 1; 176 return 1;
179 } 177 }
180 } 178 }
181 else 179 else
182 { 180 {
183 /* if we're inside a person, have the disease run its course */ 181 /* if we're inside a person, have the disease run its course */
184 /* negative foods denote "perpetual" diseases. */ 182 /* negative/zero food denotes "perpetual" diseases. */
185 if (disease->stats.food > 0) 183 if (disease->stats.food > 0)
186 { 184 {
187 disease->stats.food--; 185 disease->stats.food--;
188 186
189 if (disease->stats.food == 0) 187 if (!disease->stats.food)
190 { 188 {
191 remove_symptoms (disease); /* remove the symptoms of this disease */ 189 remove_symptoms (disease); /* remove the symptoms of this disease */
192 grant_immunity (disease); 190 grant_immunity (disease);
193 disease->destroy (); 191 disease->destroy ();
194 return 1; 192 return 1;
… …
226 symptom->destroy (); 224 symptom->destroy ();
227 } 225 }
228 226
229 if (victim) 227 if (victim)
230 victim->update_stats (); 228 victim->update_stats ();
229
231 return 0; 230 return 0;
232} 231}
233 232
234/* argument is a disease */ 233/* argument is a disease */
235object * 234object *
… …
237{ 236{
238 object *walk; 237 object *walk;
239 238
240 /* check the inventory for symptoms */ 239 /* check the inventory for symptoms */
241 for (walk = disease->env->inv; walk; walk = walk->below) 240 for (walk = disease->env->inv; walk; walk = walk->below)
242 if (!strcmp (walk->name, disease->name) && walk->type == SYMPTOM) 241 if (walk->name == disease->name && walk->type == SYMPTOM)
243 return walk; 242 return walk;
243
244 return NULL; 244 return NULL;
245} 245}
246 246
247/* searches around for more victims to infect */ 247/* searches around for more victims to infect */
248int 248int
… …
325 * if you diseased, you can't get diseased more. 325 * if you diseased, you can't get diseased more.
326 */ 326 */
327 327
328 for ( /* tmp initialised in if, above */ ; tmp; tmp = tmp->below) 328 for ( /* tmp initialised in if, above */ ; tmp; tmp = tmp->below)
329 { 329 {
330 if (tmp->type == SIGN && !strcmp (tmp->name, disease->name) && tmp->level >= disease->level) 330 if (tmp->type == SIGN && tmp->name == disease->name && tmp->level >= disease->level)
331 return 0; /* Immune! */ 331 return 0; /* Immune! */
332 else if (tmp->type == DISEASE && !strcmp (tmp->name, disease->name)) 332 else if (tmp->type == DISEASE && tmp->name == disease->name)
333 return 0; /* already diseased */ 333 return 0; /* already diseased */
334 } 334 }
335 335
336 /* If we've gotten this far, go ahead and infect the victim. */ 336 /* If we've gotten this far, go ahead and infect the victim. */
337 new_disease = disease->clone (); 337 new_disease = disease->clone ();
… …
363 * hardcoding in 'praying' is not the right approach. 363 * hardcoding in 'praying' is not the right approach.
364 */ 364 */
365 } 365 }
366 } 366 }
367 367
368 insert_ob_in_ob (new_disease, victim); 368 insert_ob_in_ob (new_disease, victim->head_ ());
369 /* This appears to be a horrible case of overloading 'NO_PASS' 369 /* This appears to be a horrible case of overloading 'NO_PASS'
370 * for meaning in the diseases. 370 * for meaning in the diseases.
371 */ 371 */
372 new_disease->move_block = 0; 372 new_disease->move_block = 0;
373 if (new_disease->owner && new_disease->owner->type == PLAYER) 373 if (new_disease->owner && new_disease->owner->type == PLAYER)
… …
385 if (victim->type == PLAYER) 385 if (victim->type == PLAYER)
386 new_draw_info (NDI_UNIQUE | NDI_RED, 0, new_disease->owner, buf); 386 new_draw_info (NDI_UNIQUE | NDI_RED, 0, new_disease->owner, buf);
387 else 387 else
388 new_draw_info (0, 4, new_disease->owner, buf); 388 new_draw_info (0, 4, new_disease->owner, buf);
389 } 389 }
390
390 if (victim->type == PLAYER) 391 if (victim->type == PLAYER)
391 new_draw_info (NDI_UNIQUE | NDI_RED, 0, victim, "You suddenly feel ill."); 392 new_draw_info (NDI_UNIQUE | NDI_RED, 0, victim, "You suddenly feel ill.");
392 393
393 return 1; 394 return 1;
394 395
395} 396}
396
397
398 397
399/* this function monitors the symptoms caused by the disease (if any), 398/* this function monitors the symptoms caused by the disease (if any),
400causes symptoms, and modifies existing symptoms in the case of 399causes symptoms, and modifies existing symptoms in the case of
401existing diseases. */ 400existing diseases. */
402
403int 401int
404do_symptoms (object *disease) 402do_symptoms (object *disease)
405{ 403{
406 object *symptom; 404 object *symptom;
407 object *victim; 405 object *victim;
408 object *tmp; 406 object *tmp;
409 407
410 victim = disease->env; 408 victim = disease->env;
409
410 if (!victim)
411 return 0; /* no-one to inflict symptoms on */
411 412
412 /* This is a quick hack - for whatever reason, disease->env will point 413 /* This is a quick hack - for whatever reason, disease->env will point
413 * back to disease, causing endless loops. Why this happens really needs 414 * back to disease, causing endless loops. Why this happens really needs
414 * to be found, but this should at least prevent the infinite loops. 415 * to be found, but this should at least prevent the infinite loops.
415 */ 416 */
416 417 //TODO: should no longer be the case, monitor, and remove
417 if (victim == NULL || victim == disease) 418 if (victim == disease)
418 return 0; /* no-one to inflict symptoms on */ 419 {
420 LOG (llevError | logBacktrace, "%s: disease->env points to itself", disease->debug_desc ());
421 return 0;
422 }
419 423
420 symptom = find_symptom (disease); 424 symptom = find_symptom (disease);
421 if (symptom == NULL) 425 if (!symptom)
422 { 426 {
423 /* no symptom? need to generate one! */ 427 /* no symptom? need to generate one! */
424 object *new_symptom; 428 object *new_symptom;
425 429
426 /* first check and see if the carrier of the disease is immune. If so, no symptoms! */ 430 /* first check and see if the carrier of the disease is immune. If so, no symptoms! */
… …
433 tmp = victim->head->inv; 437 tmp = victim->head->inv;
434 else 438 else
435 tmp = victim->inv; 439 tmp = victim->inv;
436 440
437 for ( /* tmp initialised in if, above */ ; tmp; tmp = tmp->below) 441 for ( /* tmp initialised in if, above */ ; tmp; tmp = tmp->below)
438 {
439 if (tmp->type == SIGN) /* possibly an immunity, or diseased */ 442 if (tmp->type == SIGN) /* possibly an immunity, or diseased */
440 if (!strcmp (tmp->name, disease->name) && tmp->level >= disease->level) 443 if (tmp->name == disease->name && tmp->level >= disease->level)
441 return 0; /*Immune! */ 444 return 0; /*Immune! */
442 }
443 445
444 new_symptom = get_archetype (ARCH_SYMPTOM); 446 new_symptom = get_archetype ("symptom");
445 447
446 /* Something special done with dam. We want diseases to be more 448 /* Something special done with dam. We want diseases to be more
447 * random in what they'll kill, so we'll make the damage they 449 * random in what they'll kill, so we'll make the damage they
448 * do random, note, this has a weird effect with progressive diseases. 450 * do random, note, this has a weird effect with progressive diseases.
449 */ 451 */
… …
451 { 453 {
452 int dam = disease->stats.dam; 454 int dam = disease->stats.dam;
453 455
454 /* reduce the damage, on average, 50%, and making things random. */ 456 /* reduce the damage, on average, 50%, and making things random. */
455 457
456 dam = random_roll (1, FABS (dam), victim, PREFER_LOW); 458 dam = random_roll (1, abs (dam), victim, PREFER_LOW);
457 if (disease->stats.dam < 0) 459 if (disease->stats.dam < 0)
458 dam = -dam; 460 dam = -dam;
461
459 new_symptom->stats.dam = dam; 462 new_symptom->stats.dam = dam;
460 } 463 }
461 464
462
463 new_symptom->stats.maxsp = disease->stats.maxsp; 465 new_symptom->stats.maxsp = disease->stats.maxsp;
464 new_symptom->stats.food = new_symptom->stats.maxgrace; 466 new_symptom->stats.food = new_symptom->stats.maxgrace;
465 467
466 new_symptom->name = new_symptom->name_pl = disease->name; 468 new_symptom->name = new_symptom->name_pl = disease->name;
467 469
468 new_symptom->level = disease->level; 470 new_symptom->level = disease->level;
469 new_symptom->speed = disease->speed; 471 new_symptom->speed = disease->speed;
470 new_symptom->value = 0; 472 new_symptom->value = 0;
473
474 for (int i = 0; i < NUM_STATS; ++i)
471 new_symptom->stats.Str = disease->stats.Str; 475 new_symptom->stats.stat (i) = disease->stats.stat (i);
472 new_symptom->stats.Dex = disease->stats.Dex; 476
473 new_symptom->stats.Con = disease->stats.Con;
474 new_symptom->stats.Wis = disease->stats.Wis;
475 new_symptom->stats.Int = disease->stats.Int;
476 new_symptom->stats.Pow = disease->stats.Pow;
477 new_symptom->stats.Cha = disease->stats.Cha;
478 new_symptom->stats.sp = disease->stats.sp; 477 new_symptom->stats.sp = disease->stats.sp;
479 new_symptom->stats.food = disease->last_eat; 478 new_symptom->stats.food = disease->last_eat;
480 new_symptom->stats.maxsp = disease->stats.maxsp; 479 new_symptom->stats.maxsp = disease->stats.maxsp;
481 new_symptom->last_sp = disease->last_sp; 480 new_symptom->last_sp = disease->last_sp;
482 new_symptom->stats.exp = 0; 481 new_symptom->stats.exp = 0;
483 new_symptom->stats.hp = disease->stats.hp; 482 new_symptom->stats.hp = disease->stats.hp;
484 new_symptom->msg = disease->msg; 483 new_symptom->msg = disease->msg;
485 new_symptom->attacktype = disease->attacktype; 484 new_symptom->attacktype = disease->attacktype;
486 new_symptom->other_arch = disease->other_arch; 485 new_symptom->other_arch = disease->other_arch;
487 486
488 new_symptom->set_owner (disease->owner); 487 new_symptom->set_owner (disease->owner);
489 488
490 if (new_symptom->skill != disease->skill) 489 if (new_symptom->skill != disease->skill)
491 new_symptom->skill = disease->skill; 490 new_symptom->skill = disease->skill;
… …
493 new_symptom->move_block = 0; 492 new_symptom->move_block = 0;
494 insert_ob_in_ob (new_symptom, victim); 493 insert_ob_in_ob (new_symptom, victim);
495 return 1; 494 return 1;
496 } 495 }
497 496
498 /* now deal with progressing diseases: we increase the debility 497 /* now deal with progressing diseases: we increase the debility
499 * caused by the symptoms. 498 * caused by the symptoms.
500 */ 499 */
501
502 if (disease->stats.ac != 0) 500 if (disease->stats.ac)
503 { 501 {
504 float scale; 502 symptom->value = clamp (symptom->value + disease->stats.ac, 0, 100*100);
505 503
506 symptom->value += disease->stats.ac;
507 scale = 1.0 + symptom->value / 100.0; 504 float scale = 1.f + symptom->value / 100.f;
505
508 /* now rescale all the debilities */ 506 /* now rescale all the debilities */
509 symptom->stats.Str = (int) (scale * disease->stats.Str); 507 for (int i = 0; i < NUM_STATS; ++i)
510 symptom->stats.Dex = (int) (scale * disease->stats.Dex); 508 symptom->stats.stat (i) = clamp (int (scale * disease->stats.stat (i)), -128, 127);
511 symptom->stats.Con = (int) (scale * disease->stats.Con); 509
512 symptom->stats.Wis = (int) (scale * disease->stats.Wis);
513 symptom->stats.Int = (int) (scale * disease->stats.Int);
514 symptom->stats.Pow = (int) (scale * disease->stats.Pow);
515 symptom->stats.Cha = (int) (scale * disease->stats.Cha);
516 symptom->stats.dam = (int) (scale * disease->stats.dam); 510 symptom->stats.dam = clamp (scale * disease->stats.dam , -1024, 1024);
517 symptom->stats.sp = (int) (scale * disease->stats.sp);
518 symptom->stats.food = (int) (scale * disease->last_eat); 511 symptom->stats.food = clamp (scale * disease->last_eat , -1024, 1024);
519 symptom->stats.maxsp = (int) (scale * disease->stats.maxsp); 512 symptom->stats.maxsp = clamp (scale * disease->stats.maxsp, -1024, 1024);
520 symptom->last_sp = (int) (scale * disease->last_sp); 513 symptom->last_sp = clamp (scale * disease->last_sp , -1024, 1024);
514 symptom->stats.sp = clamp (scale * disease->stats.sp , -1024, 1024);
515 symptom->stats.hp = clamp (scale * disease->stats.hp , -1024, 1024);
521 symptom->stats.exp = 0; 516 symptom->stats.exp = 0;
522 symptom->stats.hp = (int) (scale * disease->stats.hp); 517
523 symptom->msg = disease->msg; 518 symptom->msg = disease->msg;
524 symptom->attacktype = disease->attacktype; 519 symptom->attacktype = disease->attacktype;
525 symptom->other_arch = disease->other_arch; 520 symptom->other_arch = disease->other_arch;
526 } 521 }
522
527 SET_FLAG (symptom, FLAG_APPLIED); 523 SET_FLAG (symptom, FLAG_APPLIED);
528 victim->update_stats (); 524 victim->update_stats ();
525
529 return 1; 526 return 1;
530} 527}
531
532 528
533/* grants immunity to plagues we've seen before. */ 529/* grants immunity to plagues we've seen before. */
534int 530int
535grant_immunity (object *disease) 531grant_immunity (object *disease)
536{ 532{
… …
541 if (disease->last_heal) 537 if (disease->last_heal)
542 return 0; 538 return 0;
543 /* first, search for an immunity of the same name */ 539 /* first, search for an immunity of the same name */
544 for (walk = disease->env->inv; walk; walk = walk->below) 540 for (walk = disease->env->inv; walk; walk = walk->below)
545 { 541 {
546 if (walk->type == 98 && !strcmp (disease->name, walk->name)) 542 if (walk->type == 98 && disease->name == walk->name)
547 { 543 {
548 walk->level = disease->level; 544 walk->level = disease->level;
549 return 1; /* just update the existing immunity. */ 545 return 1; /* just update the existing immunity. */
550 } 546 }
551 } 547 }
… …
611 new_draw_info (NDI_UNIQUE | NDI_RED, 0, victim, symptom->msg); 607 new_draw_info (NDI_UNIQUE | NDI_RED, 0, victim, symptom->msg);
612 608
613 return 1; 609 return 1;
614} 610}
615 611
616
617/* possibly infect due to direct physical contact 612/* possibly infect due to direct physical contact
618 i.e., AT_PHYSICAL-- called from "hit_player_attacktype" */ 613 * i.e., AT_PHYSICAL-- called from "hit_player_attacktype" */
619
620int 614int
621check_physically_infect (object *victim, object *hitter) 615check_physically_infect (object *victim, object *hitter)
622{ 616{
623 object *walk;
624
625 /* search for diseases, give every disease a chance to infect */ 617 /* search for diseases, give every disease a chance to infect */
626 for (walk = hitter->inv; walk != NULL; walk = walk->below) 618 for (object *disease = hitter->inv; disease; disease = disease->below)
627 if (walk->type == DISEASE) 619 if (disease->type == DISEASE)
628 infect_object (victim, walk, 0); 620 infect_object (victim, disease, 0);
621
629 return 1; 622 return 1;
630} 623}
631 624
632/* find a disease in someone*/ 625// find a disease in someone
633object * 626object *
634find_disease (object *victim) 627find_disease (object *victim)
635{ 628{
636 object *walk; 629 for (object *disease = victim->inv; disease; disease = disease->below)
637
638 for (walk = victim->inv; walk; walk = walk->below)
639 if (walk->type == DISEASE) 630 if (disease->type == DISEASE)
640 return walk; 631 return disease;
632
641 return NULL; 633 return 0;
642} 634}
643 635
644/* do the cure disease stuff, from the spell "cure disease" */ 636/* do the cure disease stuff, from the spell "cure disease" */
645
646int 637int
647cure_disease (object *sufferer, object *caster) 638cure_disease (object *sufferer, object *caster)
648{ 639{
649 object *disease, *next; 640 object *disease, *next;
650 int casting_level; 641 int casting_level;
… …
659 { 650 {
660 next = disease->below; 651 next = disease->below;
661 652
662 if (disease->type == DISEASE) 653 if (disease->type == DISEASE)
663 { /* attempt to cure this disease */ 654 { /* attempt to cure this disease */
664 /* If caster lvel is higher than disease level, cure chance 655 /* If caster level is higher than disease level, cure chance
665 * is automatic. If lower, then the chance is basically 656 * is automatic. If lower, then the chance is basically
666 * 1 in level_diff - if there is a 5 level difference, chance 657 * 1 in level_diff - if there is a 5 level difference, chance
667 * is 1 in 5. 658 * is 1 in 5.
668 */ 659 */
669 if ((casting_level >= disease->level) || (!(random_roll (0, (disease->level - casting_level - 1), caster, PREFER_LOW)))) 660 if ((casting_level >= disease->level) || (!(random_roll (0, (disease->level - casting_level - 1), caster, PREFER_LOW))))
670 { 661 {
671
672 remove_symptoms (disease); 662 remove_symptoms (disease);
673 cure = 1; 663 cure = 1;
674 664
675 if (caster) 665 if (caster)
676 change_exp (caster, disease->stats.exp, caster->chosen_skill ? &caster->chosen_skill->skill : (const char *) 0, 0); 666 change_exp (caster, disease->stats.exp, caster->chosen_skill ? caster->chosen_skill->skill : (const char *) 0, 0);
677 667
678 disease->destroy (); 668 disease->destroy ();
679 } 669 }
680 } 670 }
681 } 671 }
672
682 if (cure) 673 if (cure)
683 { 674 {
684 /* Only draw these messages once */ 675 /* Only draw these messages once */
685 if (caster) 676 if (caster)
686 new_draw_info_format (NDI_UNIQUE, 0, caster, "You cure a disease!"); 677 new_draw_info_format (NDI_UNIQUE, 0, caster, "You cure a disease!");
678
687 new_draw_info (NDI_UNIQUE, 0, sufferer, "You no longer feel diseased."); 679 new_draw_info (NDI_UNIQUE, 0, sufferer, "You no longer feel diseased.");
688 } 680 }
681
689 return 1; 682 return 1;
690} 683}
691 684
692/* reduces disease progression: reduce_symptoms 685/* reduces disease progression: reduce_symptoms
693 * return true if we actually reduce a disease. 686 * return true if we actually reduce a disease.
694 */ 687 */
695
696int 688int
697reduce_symptoms (object *sufferer, int reduction) 689reduce_symptoms (object *sufferer, int reduction)
698{ 690{
699 object *walk; 691 object *walk;
700 int success = 0; 692 int success = 0;
… …
704 if (walk->type == SYMPTOM) 696 if (walk->type == SYMPTOM)
705 { 697 {
706 if (walk->value > 0) 698 if (walk->value > 0)
707 { 699 {
708 success = 1; 700 success = 1;
709 walk->value = MAX (0, walk->value - 2 * reduction); 701 walk->value = max (0, walk->value - 2 * reduction);
710 /* give the disease time to modify this symptom, 702 /* give the disease time to modify this symptom,
711 * and reduce its severity. */ 703 * and reduce its severity. */
712 walk->speed_left = 0; 704 walk->speed_left = 0;
713 } 705 }
714 } 706 }
715 } 707 }
708
716 if (success) 709 if (success)
717 new_draw_info (NDI_UNIQUE, 0, sufferer, "Your illness seems less severe."); 710 new_draw_info (NDI_UNIQUE, 0, sufferer, "Your illness seems less severe.");
711
718 return success; 712 return success;
719} 713}

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