[ViewVC] Diff of: cvs/deliantra/server/server/disease.C

Comparing deliantra/server/server/disease.C (file contents):
Revision 1.14 by root, Tue Dec 26 08:54:59 2006 UTC vs.
Revision 1.54 by root, Fri Nov 6 12:49:19 2009 UTC

…		…
1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2002 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
8	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
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	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,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	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
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	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		31
32	For DISEASES:	32	For DISEASES:
33	Stat Property Definition	33	Stat Property Definition
45	dam^ Damage How much damage it does (%?).	45	dam^ Damage How much damage it does (%?).
46	maxgrace+ Duration How long before the disease is naturally cured.	46	maxgrace+ Duration How long before the disease is naturally cured.
47	food DurCount Counter for Duration	47	food DurCount Counter for Duration
48		48
49	speed Speed How often the disease moves.	49	speed Speed How often the disease moves.
50	last_sp^ Lethargy Percentage of max speed--10 = 10% speed.	50	last_sp^ Lethargy Percentage of max speed. 10 = 10% speed.
51		51
52	maxsp^ Mana deplete Saps mana.	52	maxsp^ Mana deplete Saps mana.
53	ac^ Progressiveness How the diseases increases in severity.	53	ac^ Progressiveness How the diseases increases in severity.
54	last_eat*^ Deplete food saps food if negative	54	last_eat*^ Deplete food saps food if negative
55	last_heal GrantImmunity If nonzero, disease does NOT grant immunity	55	last_heal GrantImmunity If nonzero, disease does NOT grant immunity
…		…
138	Diseases may be contageous. They are objects which exist in a player's	138	Diseases may be contageous. They are objects which exist in a player's
139	inventory. They themselves do nothing, except modify Symptoms, or	139	inventory. They themselves do nothing, except modify Symptoms, or
140	spread to other live objects. Symptoms are what actually damage the player:	140	spread to other live objects. Symptoms are what actually damage the player:
141	these are their own object. */	141	these are their own object. */
142		142
		143	/* grants immunity to plagues we've seen before. */
		144	static int
		145	grant_immunity (object *disease)
		146	{
		147	object *immunity;
		148	object *walk;
		149
		150	/* Don't give immunity to this disease if last_heal is set. */
		151	if (disease->last_heal)
		152	return 0;
		153
		154	/* first, search for an immunity of the same name */
		155	for (walk = disease->env->inv; walk; walk = walk->below)
		156	if (walk->type == 98 && disease->name == walk->name)
		157	{
		158	walk->level = disease->level;
		159	return 1; /* just update the existing immunity. */
		160	}
		161
		162	immunity = get_archetype ("immunity");
		163
		164	immunity->name = disease->name;
		165	immunity->level = disease->level;
		166	immunity->move_block = 0;
		167
		168	insert_ob_in_ob (immunity, disease->env);
		169
		170	return 1;
		171	}
		172
		173	/* argument is a disease */
		174	static object *
		175	find_symptom (object *disease)
		176	{
		177	/* check the inventory for symptoms */
		178	for (object *walk = disease->env->inv; walk; walk = walk->below)
		179	if (walk->name == disease->name && walk->type == SYMPTOM)
		180	return walk;
		181
		182	return NULL;
		183	}
		184
		185	/* remove any symptoms of disease
		186	* Modified by MSW 2003-03-28 do try to find all the symptom the
		187	* player may have - I think through some odd interactoins with
		188	* disease level and player level and whatnot, a player could get
		189	* more than one symtpom to a disease.
		190	*/
		191	static int
		192	remove_symptoms (object *disease)
		193	{
		194	object symptom, victim = NULL;
		195
		196	while ((symptom = find_symptom (disease)) != NULL)
		197	{
		198	if (!victim)
		199	victim = symptom->env;
		200
		201	symptom->destroy ();
		202	}
		203
		204	if (victim)
		205	victim->update_stats ();
		206
		207	return 0;
		208	}
		209
		210	/* searches around for more victims to infect */
		211	static int
		212	check_infection (object *disease)
		213	{
		214	int range = abs (disease->magic);
		215
		216	object *op = disease->outer_env_or_self ();
		217
		218	if (!op->is_on_map ())
		219	return 0;
		220
		221	unordered_mapwalk (op, -range, -range, range, range)
		222	{
		223	mapspace &ms = m->at (nx, ny);
		224
		225	if (ms.flags () & P_IS_ALIVE)
		226	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
		227	infect_object (tmp, disease, 0);
		228	}
		229
		230	return 1;
		231	}
		232
143	/* check if victim is susceptible to disease. */	233	/* check if victim is susceptible to disease. */
144	static int	234	static int
145	is_susceptible_to_disease (object victim, object disease)	235	is_susceptible_to_disease (object victim, object disease)
146	{	236	{
147	if (!QUERY_FLAG (victim, FLAG_ALIVE))	237	if (!QUERY_FLAG (victim, FLAG_ALIVE))
148	return 0;	238	return 0;
149		239
		240	if (victim->flag [FLAG_WIZ])
		241	return 0;
		242
150	if (strstr (disease->race, "*") && !QUERY_FLAG (victim, FLAG_UNDEAD))	243	if (disease->race.contains ("*") && !QUERY_FLAG (victim, FLAG_UNDEAD))
151	return 1;	244	return 1;
152		245
153	if ((disease->race == undead_name) && QUERY_FLAG (victim, FLAG_UNDEAD))	246	if ((disease->race == shstr_undead) && QUERY_FLAG (victim, FLAG_UNDEAD))
154	return 1;	247	return 1;
155		248
156	if ((victim->race && strstr (disease->race, victim->race)) \|\| strstr (disease->race, victim->name))	249	if ((victim->race && disease->race.contains (victim->race)) \|\| disease->race.contains (victim->name))
157	return 1;	250	return 1;
158		251
159	return 0;	252	return 0;
		253	}
		254
		255	/* this function monitors the symptoms caused by the disease (if any),
		256	causes symptoms, and modifies existing symptoms in the case of
		257	existing diseases. */
		258	static int
		259	do_symptoms (object *disease)
		260	{
		261	object *symptom;
		262	object *victim;
		263	object *tmp;
		264
		265	victim = disease->env;
		266
		267	if (!victim)
		268	return 0; /* no-one to inflict symptoms on */
		269
		270	/* This is a quick hack - for whatever reason, disease->env will point
		271	* back to disease, causing endless loops. Why this happens really needs
		272	* to be found, but this should at least prevent the infinite loops.
		273	*/
		274	//TODO: should no longer be the case, monitor, and remove
		275	if (victim == disease)
		276	{
		277	LOG (llevError \| logBacktrace, "%s: disease->env points to itself", disease->debug_desc ());
		278	return 0;
		279	}
		280
		281	symptom = find_symptom (disease);
		282	if (!symptom)
		283	{
		284	/* no symptom? need to generate one! */
		285
		286	/* first check and see if the carrier of the disease is immune. If so, no symptoms! */
		287	if (!is_susceptible_to_disease (victim, disease))
		288	return 0;
		289
		290	/* check for an actual immunity */
		291	/* do an immunity check */
		292	for (tmp = victim->head_ ()->inv; tmp; tmp = tmp->below)
		293	if (tmp->type == SIGN) /* possibly an immunity, or diseased */
		294	if (tmp->name == disease->name && tmp->level >= disease->level)
		295	return 0; /* Immune! */
		296
		297	object *new_symptom = get_archetype ("symptom");
		298
		299	/* Something special done with dam. We want diseases to be more
		300	* random in what they'll kill, so we'll make the damage they
		301	* do random, note, this has a weird effect with progressive diseases.
		302	*/
		303	if (disease->stats.dam)
		304	{
		305	int dam = disease->stats.dam;
		306
		307	/* reduce the damage, on average, 50%, and making things random. */
		308
		309	dam = random_roll (1, abs (dam), victim, PREFER_LOW);
		310	if (disease->stats.dam < 0)
		311	dam = -dam;
		312
		313	new_symptom->stats.dam = dam;
		314	}
		315
		316	new_symptom->stats.maxsp = disease->stats.maxsp;
		317	new_symptom->stats.food = new_symptom->stats.maxgrace;
		318
		319	new_symptom->name = new_symptom->name_pl = disease->name;
		320
		321	new_symptom->level = disease->level;
		322	new_symptom->speed = disease->speed;
		323	new_symptom->value = 0;
		324
		325	for (int i = 0; i < NUM_STATS; ++i)
		326	new_symptom->stats.stat (i) = disease->stats.stat (i);
		327
		328	new_symptom->stats.sp = disease->stats.sp;
		329	new_symptom->stats.food = disease->last_eat;
		330	new_symptom->stats.maxsp = disease->stats.maxsp;
		331	new_symptom->last_sp = disease->last_sp;
		332	new_symptom->stats.exp = 0;
		333	new_symptom->stats.hp = disease->stats.hp;
		334	new_symptom->msg = disease->msg;
		335	new_symptom->attacktype = disease->attacktype;
		336	new_symptom->other_arch = disease->other_arch;
		337	new_symptom->skill = disease->skill;
		338
		339	new_symptom->move_block = 0;
		340
		341	victim->head_ ()->insert (new_symptom);
		342
		343	// set owner last, as insert clears owner
		344	new_symptom->set_owner (disease->owner);
		345
		346	return 1;
		347	}
		348
		349	/* now deal with progressing diseases: we increase the debility
		350	* caused by the symptoms.
		351	*/
		352	if (disease->stats.ac)
		353	{
		354	symptom->value = clamp (symptom->value + disease->stats.ac, 0, 100*100);
		355
		356	float scale = 1.f + symptom->value / 100.f;
		357
		358	/* now rescale all the debilities */
		359	for (int i = 0; i < NUM_STATS; ++i)
		360	symptom->stats.stat (i) = clamp (int (scale * disease->stats.stat (i)), -128, 127);
		361
		362	symptom->stats.dam = clamp (scale * disease->stats.dam , -1024, 1024);
		363	symptom->stats.food = clamp (scale * disease->last_eat , -1024, 1024);
		364	symptom->stats.maxsp = clamp (scale * disease->stats.maxsp, -1024, 1024);
		365	symptom->stats.sp = clamp (scale * disease->stats.sp , -1024, 1024);
		366	symptom->stats.hp = clamp (scale * disease->stats.hp , -1024, 1024);
		367	symptom->stats.exp = 0;
		368	symptom->last_sp = disease->last_sp ? clamp (disease->last_sp / scale, 1, 1024) : 0;
		369	symptom->msg = disease->msg;
		370	symptom->attacktype = disease->attacktype;
		371	symptom->other_arch = disease->other_arch;
		372	}
		373
		374	SET_FLAG (symptom, FLAG_APPLIED);
		375	victim->update_stats ();
		376
		377	return 1;
160	}	378	}
161		379
162	int	380	int
163	move_disease (object *disease)	381	move_disease (object *disease)
164	{	382	{
165	/* first task is to determine if the disease is inside or outside of someone.	383	/* First task is to determine if the disease is inside or outside of someone.
166	* If outside, we decrement 'value' until we're gone.	384	* If outside, we decrement 'value' until we're gone.
167	*/	385	*/
168		386
169	if (disease->env == NULL)	387	if (!disease->env)
170	{ /* we're outside of someone */	388	{ /* we're outside of someone */
171	if (disease->stats.maxhp > 0)	389	if (disease->stats.maxhp > 0)
172	disease->value--;	390	disease->value--;
173		391
174	if (disease->value == 0)	392	if (!disease->value)
175	{	393	{
176	disease->destroy ();	394	disease->destroy ();
177	return 1;	395	return 1;
178	}	396	}
179	}	397	}
180	else	398	else
181	{	399	{
182	/* if we're inside a person, have the disease run its course */	400	/* if we're inside a person, have the disease run its course */
183	/* negative foods denote "perpetual" diseases. */	401	/* negative/zero food denotes "perpetual" diseases. */
184	if (disease->stats.food > 0)	402	if (disease->stats.food > 0)
185	{	403	{
186	disease->stats.food--;	404	disease->stats.food--;
187		405
188	if (disease->stats.food == 0)	406	if (!disease->stats.food)
189	{	407	{
190	remove_symptoms (disease); /* remove the symptoms of this disease */	408	remove_symptoms (disease); /* remove the symptoms of this disease */
191	grant_immunity (disease);	409	grant_immunity (disease);
192	disease->destroy ();	410	disease->destroy ();
193	return 1;	411	return 1;
…		…
202	if (disease->env && is_susceptible_to_disease (disease->env, disease))	420	if (disease->env && is_susceptible_to_disease (disease->env, disease))
203	do_symptoms (disease);	421	do_symptoms (disease);
204		422
205	return 0;	423	return 0;
206	}	424	}
207
208	/* remove any symptoms of disease
209	* Modified by MSW 2003-03-28 do try to find all the symptom the
210	* player may have - I think through some odd interactoins with
211	* disease level and player level and whatnot, a player could get
212	* more than one symtpom to a disease.
213	*/
214
215	int
216	remove_symptoms (object *disease)
217	{
218	object symptom, victim = NULL;
219
220	while ((symptom = find_symptom (disease)) != NULL)
221	{
222	if (!victim)
223	victim = symptom->env;
224
225	symptom->destroy ();
226	}
227
228	if (victim)
229	victim->update_stats ();
230	return 0;
231	}
232
233	/* argument is a disease */
234	object *
235	find_symptom (object *disease)
236	{
237	object *walk;
238
239	/* check the inventory for symptoms */
240	for (walk = disease->env->inv; walk; walk = walk->below)
241	if (!strcmp (walk->name, disease->name) && walk->type == SYMPTOM)
242	return walk;
243	return NULL;
244	}
245
246	/* searches around for more victims to infect */
247	int
248	check_infection (object *disease)
249	{
250	int x, y, range, mflags;
251	maptile map, map2;
252	object *tmp;
253
254	range = abs (disease->magic);
255
256	if (disease->env)
257	{
258	x = disease->env->x;
259	y = disease->env->y;
260	map = disease->env->map;
261	}
262	else
263	{
264	x = disease->x;
265	y = disease->y;
266	map = disease->map;
267	}
268
269	if (!map)
270	return 0;
271
272	for (int i = x - range; i <= x + range; i++)
273	for (int j = y - range; j <= y + range; j++)
274	{
275	sint16 i2, j2;
276	mflags = get_map_flags (map, &map2, i, j, &i2, &j2);
277
278	if (!(mflags & P_OUT_OF_MAP) && (mflags & P_IS_ALIVE))
279	for (tmp = GET_MAP_OB (map2, i2, j2); tmp; tmp = tmp->above)
280	infect_object (tmp, disease, 0);
281	}
282
283	return 1;
284	}
285
286		425
287	/* check to see if an object is infectable:	426	/* check to see if an object is infectable:
288	* objects with immunity aren't infectable.	427	* objects with immunity aren't infectable.
289	* objects already infected aren't infectable.	428	* objects already infected aren't infectable.
290	* dead objects aren't infectable.	429	* dead objects aren't infectable.
…		…
309	/* roll the dice on infection before doing the inventory check! */	448	/* roll the dice on infection before doing the inventory check! */
310	if (!force && (random_roll (0, 126, victim, PREFER_HIGH) >= disease->stats.wc))	449	if (!force && (random_roll (0, 126, victim, PREFER_HIGH) >= disease->stats.wc))
311	return 0;	450	return 0;
312		451
313	/* do an immunity check */	452	/* do an immunity check */
314	if (victim->head)
315	tmp = victim->head->inv;
316	else
317	tmp = victim->inv;
318		453
319	/* There used to (IMO) be a flaw in the below - it used to be the case	454	/* There used to (IMO) be a flaw in the below - it used to be the case
320	* that if level check was done for both immunity and disease. This could	455	* that if level check was done for both immunity and disease. This could
321	* result in a person with multiple afflictions of the same disease	456	* result in a person with multiple afflictions of the same disease
322	* (eg, level 1 cold, level 2 cold, level 3 cold, etc), as long as	457	* (eg, level 1 cold, level 2 cold, level 3 cold, etc), as long as
323	* they were cast in that same order. Instead, change it so that	458	* they were cast in that same order. Instead, change it so that
324	* if you diseased, you can't get diseased more.	459	* if you diseased, you can't get diseased more.
325	*/	460	*/
326		461
327	for ( /* tmp initialized in if, above */ ; tmp; tmp = tmp->below)	462	for (tmp = victim->head_ ()->inv; tmp; tmp = tmp->below)
328	{
329	if (tmp->type == SIGN && !strcmp (tmp->name, disease->name) && tmp->level >= disease->level)	463	if (tmp->type == SIGN && tmp->name == disease->name && tmp->level >= disease->level)
330	return 0; /Immune! /	464	return 0; /* Immune! */
331	else if (tmp->type == DISEASE && !strcmp (tmp->name, disease->name))	465	else if (tmp->type == DISEASE && tmp->name == disease->name)
332	return 0; /* already diseased */	466	return 0; /* already diseased */
333	}
334		467
335	/* If we've gotten this far, go ahead and infect the victim. */	468	/* If we've gotten this far, go ahead and infect the victim. */
		469
336	new_disease = disease->clone ();	470	new_disease = disease->clone ();
		471
337	new_disease->stats.food = disease->stats.maxgrace;	472	new_disease->stats.food = disease->stats.maxgrace;
338	new_disease->value = disease->stats.maxhp;	473	new_disease->value = disease->stats.maxhp;
339	new_disease->stats.wc -= disease->last_grace; /* self-limiting factor */	474	new_disease->stats.wc -= disease->last_grace; /* self-limiting factor */
340		475
341	/* Unfortunately, set_owner does the wrong thing to the skills pointers
342	* resulting in exp going into the owners current chosen skill.
343	*/
344
345	if (disease->owner)
346	{
347	new_disease->set_owner (disease->owner);
348
349	/* Only need to update skill if different */
350	if (new_disease->skill != disease->skill)
351	new_disease->skill = disease->skill;
352	}
353	else
354	{ /* for diseases which are passed by hitting, set owner and praying skill */
355	if (disease->env && disease->env->type == PLAYER)
356	{
357	object *player = disease->env;
358
359	new_disease->set_owner (player);
360
361	/* the skill pointer for these diseases should already be set up -
362	* hardcoding in 'praying' is not the right approach.
363	*/
364	}
365	}
366
367	insert_ob_in_ob (new_disease, victim);
368	/* This appears to be a horrible case of overloading 'NO_PASS'	476	/* This appears to be a horrible case of overloading 'NO_PASS'
369	* for meaning in the diseases.	477	* for meaning in the diseases.
370	*/	478	*/
371	new_disease->move_block = 0;	479	new_disease->move_block = 0;
		480
		481	// insert before setting the owner
		482	victim->head_ ()->insert (new_disease);
		483
		484	if (disease->owner)
		485	new_disease->set_owner (disease->owner);
		486	else if (object *pl = disease->in_player ())
		487	/* for diseases which are passed by hitting, set owner and skill */
		488	new_disease->set_owner (pl);
		489
372	if (new_disease->owner && new_disease->owner->type == PLAYER)	490	if (new_disease->owner && new_disease->owner->type == PLAYER)
373	{	491	{
374	char buf[128];	492	const char *buf;
375		493
376	/* if the disease has a title, it has a special infection message	494	/* if the disease has a title, it has a special infection message
377	* This messages is printed in the form MESSAGE victim	495	* This messages is printed in the form MESSAGE victim
378	*/	496	*/
379	if (new_disease->title)	497	if (new_disease->title)
380	sprintf (buf, "%s %s!!", &disease->title, &victim->name);	498	buf = format ("%s %s!!", &disease->title, &victim->name);
381	else	499	else
382	sprintf (buf, "You infect %s with your disease, %s!", &victim->name, &new_disease->name);	500	buf = format ("You infect %s with your disease, %s!", &victim->name, &new_disease->name);
383		501
384	if (victim->type == PLAYER)	502	if (victim->type == PLAYER)
385	new_draw_info (NDI_UNIQUE \| NDI_RED, 0, new_disease->owner, buf);	503	new_draw_info (NDI_UNIQUE \| NDI_RED, 0, new_disease->owner, buf);
386	else	504	else
387	new_draw_info (0, 4, new_disease->owner, buf);	505	new_draw_info (0, 4, new_disease->owner, buf);
388	}	506	}
		507
389	if (victim->type == PLAYER)	508	if (victim->type == PLAYER)
390	new_draw_info (NDI_UNIQUE \| NDI_RED, 0, victim, "You suddenly feel ill.");	509	new_draw_info (NDI_UNIQUE \| NDI_RED, 0, victim, "You suddenly feel ill.");
391		510
392	return 1;	511	return 1;
393
394	}	512	}
395
396
397
398	/* this function monitors the symptoms caused by the disease (if any),
399	causes symptoms, and modifies existing symptoms in the case of
400	existing diseases. */
401
402	int
403	do_symptoms (object *disease)
404	{
405	object *symptom;
406	object *victim;
407	object *tmp;
408
409	victim = disease->env;
410
411	/* This is a quick hack - for whatever reason, disease->env will point
412	* back to disease, causing endless loops. Why this happens really needs
413	* to be found, but this should at least prevent the infinite loops.
414	*/
415
416	if (victim == NULL \|\| victim == disease)
417	return 0; /* no-one to inflict symptoms on */
418
419	symptom = find_symptom (disease);
420	if (symptom == NULL)
421	{
422	/* no symptom? need to generate one! */
423	object *new_symptom;
424
425	/* first check and see if the carrier of the disease is immune. If so, no symptoms! */
426	if (!is_susceptible_to_disease (victim, disease))
427	return 0;
428
429	/* check for an actual immunity */
430	/* do an immunity check */
431	if (victim->head)
432	tmp = victim->head->inv;
433	else
434	tmp = victim->inv;
435
436	for ( /* tmp initialized in if, above */ ; tmp; tmp = tmp->below)
437	{
438	if (tmp->type == SIGN) /* possibly an immunity, or diseased */
439	if (!strcmp (tmp->name, disease->name) && tmp->level >= disease->level)
440	return 0; /Immune! /
441	}
442
443	new_symptom = get_archetype (ARCH_SYMPTOM);
444
445	/* Something special done with dam. We want diseases to be more
446	* random in what they'll kill, so we'll make the damage they
447	* do random, note, this has a weird effect with progressive diseases.
448	*/
449	if (disease->stats.dam != 0)
450	{
451	int dam = disease->stats.dam;
452
453	/* reduce the damage, on average, 50%, and making things random. */
454
455	dam = random_roll (1, FABS (dam), victim, PREFER_LOW);
456	if (disease->stats.dam < 0)
457	dam = -dam;
458	new_symptom->stats.dam = dam;
459	}
460
461
462	new_symptom->stats.maxsp = disease->stats.maxsp;
463	new_symptom->stats.food = new_symptom->stats.maxgrace;
464
465	new_symptom->name = new_symptom->name_pl = disease->name;
466
467	new_symptom->level = disease->level;
468	new_symptom->speed = disease->speed;
469	new_symptom->value = 0;
470	new_symptom->stats.Str = disease->stats.Str;
471	new_symptom->stats.Dex = disease->stats.Dex;
472	new_symptom->stats.Con = disease->stats.Con;
473	new_symptom->stats.Wis = disease->stats.Wis;
474	new_symptom->stats.Int = disease->stats.Int;
475	new_symptom->stats.Pow = disease->stats.Pow;
476	new_symptom->stats.Cha = disease->stats.Cha;
477	new_symptom->stats.sp = disease->stats.sp;
478	new_symptom->stats.food = disease->last_eat;
479	new_symptom->stats.maxsp = disease->stats.maxsp;
480	new_symptom->last_sp = disease->last_sp;
481	new_symptom->stats.exp = 0;
482	new_symptom->stats.hp = disease->stats.hp;
483	new_symptom->msg = disease->msg;
484	new_symptom->attacktype = disease->attacktype;
485	new_symptom->other_arch = disease->other_arch;
486
487	new_symptom->set_owner (disease->owner);
488
489	if (new_symptom->skill != disease->skill)
490	new_symptom->skill = disease->skill;
491
492	new_symptom->move_block = 0;
493	insert_ob_in_ob (new_symptom, victim);
494	return 1;
495	}
496
497	/* now deal with progressing diseases: we increase the debility
498	* caused by the symptoms.
499	*/
500
501	if (disease->stats.ac != 0)
502	{
503	float scale;
504
505	symptom->value += disease->stats.ac;
506	scale = 1.0 + symptom->value / 100.0;
507	/* now rescale all the debilities */
508	symptom->stats.Str = (int) (scale * disease->stats.Str);
509	symptom->stats.Dex = (int) (scale * disease->stats.Dex);
510	symptom->stats.Con = (int) (scale * disease->stats.Con);
511	symptom->stats.Wis = (int) (scale * disease->stats.Wis);
512	symptom->stats.Int = (int) (scale * disease->stats.Int);
513	symptom->stats.Pow = (int) (scale * disease->stats.Pow);
514	symptom->stats.Cha = (int) (scale * disease->stats.Cha);
515	symptom->stats.dam = (int) (scale * disease->stats.dam);
516	symptom->stats.sp = (int) (scale * disease->stats.sp);
517	symptom->stats.food = (int) (scale * disease->last_eat);
518	symptom->stats.maxsp = (int) (scale * disease->stats.maxsp);
519	symptom->last_sp = (int) (scale * disease->last_sp);
520	symptom->stats.exp = 0;
521	symptom->stats.hp = (int) (scale * disease->stats.hp);
522	symptom->msg = disease->msg;
523	symptom->attacktype = disease->attacktype;
524	symptom->other_arch = disease->other_arch;
525	}
526	SET_FLAG (symptom, FLAG_APPLIED);
527	victim->update_stats ();
528	return 1;
529	}
530
531
532	/* grants immunity to plagues we've seen before. */
533	int
534	grant_immunity (object *disease)
535	{
536	object *immunity;
537	object *walk;
538
539	/* Don't give immunity to this disease if last_heal is set. */
540	if (disease->last_heal)
541	return 0;
542	/* first, search for an immunity of the same name */
543	for (walk = disease->env->inv; walk; walk = walk->below)
544	{
545	if (walk->type == 98 && !strcmp (disease->name, walk->name))
546	{
547	walk->level = disease->level;
548	return 1; /* just update the existing immunity. */
549	}
550	}
551	immunity = get_archetype ("immunity");
552	immunity->name = disease->name;
553	immunity->level = disease->level;
554	immunity->move_block = 0;
555	insert_ob_in_ob (immunity, disease->env);
556	return 1;
557
558	}
559
560		513
561	/* make the symptom do the nasty things it does */	514	/* make the symptom do the nasty things it does */
562
563	int	515	int
564	move_symptom (object *symptom)	516	move_symptom (object *symptom)
565	{	517	{
566	object *victim = symptom->env;	518	object *victim = symptom->env;
567	object *new_ob;	519	object *new_ob;
568	int sp_reduce;	520	int sp_reduce;
569		521
570	if (victim == NULL \|\| victim->map == NULL)	522	if (!victim \|\| !victim->map)
571	{ /* outside a monster/player, die immediately */	523	{ /* outside a monster/player, die immediately */
572	symptom->destroy ();	524	symptom->destroy ();
573	return 0;	525	return 0;
574	}	526	}
575		527
576	if (symptom->stats.dam > 0)	528	if (symptom->stats.dam > 0)
577	hit_player (victim, symptom->stats.dam, symptom, symptom->attacktype, 1);	529	hit_player (victim, symptom->stats.dam, symptom, symptom->attacktype, 1);
578	else	530	else
579	hit_player (victim, (int) MAX (1, -victim->stats.maxhp * symptom->stats.dam / 100.0), symptom, symptom->attacktype, 1);	531	hit_player (victim, max (1, -victim->stats.maxhp * symptom->stats.dam / 100), symptom, symptom->attacktype, 1);
580		532
581	if (symptom->stats.maxsp > 0)	533	if (symptom->stats.maxsp > 0)
582	sp_reduce = symptom->stats.maxsp;	534	sp_reduce = symptom->stats.maxsp;
583	else	535	else
584	sp_reduce = (int) MAX (1, victim->stats.maxsp * symptom->stats.maxsp / 100.0);	536	sp_reduce = max (1, victim->stats.maxsp * symptom->stats.maxsp / 100);
		537
585	victim->stats.sp = MAX (0, victim->stats.sp - sp_reduce);	538	victim->stats.sp = max (0, victim->stats.sp - sp_reduce);
586		539
587	/* create the symptom "other arch" object and drop it here	540	/* create the symptom "other arch" object and drop it here
588	* under every part of the monster	541	* under every part of the monster
589	* The victim may well have died.	542	* The victim may well have died.
590	*/	543	*/
591
592	if (victim->map == NULL)	544	if (victim->map)
593	return 0;	545	{
		546	victim->play_sound (symptom->sound);
		547
594	if (symptom->other_arch)	548	if (symptom->other_arch)
595	{	549	for (object *tmp = victim->head_ (); tmp; tmp = tmp->more)
596	object *tmp;
597
598	tmp = victim;
599	if (tmp->head != NULL)
600	tmp = tmp->head;
601	for ( /tmp initialized above / ; tmp != NULL; tmp = tmp->more)
602	{	550	{
603	new_ob = arch_to_object (symptom->other_arch);	551	new_ob = arch_to_object (symptom->other_arch);
604	new_ob->x = tmp->x;	552	new_ob->x = tmp->x;
605	new_ob->y = tmp->y;	553	new_ob->y = tmp->y;
606	new_ob->map = victim->map;	554	new_ob->map = victim->map;
607	insert_ob_in_map (new_ob, victim->map, victim, 0);	555	insert_ob_in_map (new_ob, victim->map, victim, 0);
608	}	556	}
609	}	557	}
		558
610	new_draw_info (NDI_UNIQUE \| NDI_RED, 0, victim, symptom->msg);	559	new_draw_info (NDI_UNIQUE \| NDI_RED, 0, victim, symptom->msg);
611		560
612	return 1;	561	return 1;
613	}	562	}
614		563
615
616	/* possibly infect due to direct physical contact	564	/* possibly infect due to direct physical contact
617	i.e., AT_PHYSICAL-- called from "hit_player_attacktype" */	565	* i.e., AT_PHYSICAL-- called from "hit_player_attacktype" */
618
619	int	566	int
620	check_physically_infect (object victim, object hitter)	567	check_physically_infect (object victim, object hitter)
621	{	568	{
622	object *walk;
623
624	/* search for diseases, give every disease a chance to infect */	569	/* search for diseases, give every disease a chance to infect */
625	for (walk = hitter->inv; walk != NULL; walk = walk->below)	570	for (object *disease = hitter->inv; disease; disease = disease->below)
626	if (walk->type == DISEASE)	571	if (disease->type == DISEASE)
627	infect_object (victim, walk, 0);	572	infect_object (victim, disease, 0);
		573
628	return 1;	574	return 1;
629	}	575	}
630		576
631	/* find a disease in someone*/	577	// find a disease in someone
632	object *	578	static object *
633	find_disease (object *victim)	579	find_disease (object *victim)
634	{	580	{
635	object *walk;	581	for (object *disease = victim->inv; disease; disease = disease->below)
636
637	for (walk = victim->inv; walk; walk = walk->below)
638	if (walk->type == DISEASE)	582	if (disease->type == DISEASE)
639	return walk;	583	return disease;
		584
640	return NULL;	585	return 0;
641	}	586	}
642		587
643	/* do the cure disease stuff, from the spell "cure disease" */	588	/* do the cure disease stuff, from the spell "cure disease" */
644
645	int	589	int
646	cure_disease (object sufferer, object caster)	590	cure_disease (object sufferer, object caster, object *spell)
647	{	591	{
648	object disease, next;	592	object disease, next;
649	int casting_level;
650	int cure = 0;	593	int cure = 0;
651		594
652	if (caster)
653	casting_level = caster->level;
654	else
655	casting_level = 1000; /* if null caster, CURE all. */	595	int casting_level = caster ? caster->level : 1000; /* if null caster, CURE all. */
656		596
657	for (disease = sufferer->inv; disease; disease = next)	597	for (disease = sufferer->inv; disease; disease = next)
658	{	598	{
659	next = disease->below;	599	next = disease->below;
660		600
661	if (disease->type == DISEASE)	601	if (disease->type == DISEASE)
662	{ /* attempt to cure this disease */	602	{ /* attempt to cure this disease */
663	/* If caster lvel is higher than disease level, cure chance	603	/* If caster level is higher than disease level, cure chance
664	* is automatic. If lower, then the chance is basically	604	* is automatic. If lower, then the chance is basically
665	* 1 in level_diff - if there is a 5 level difference, chance	605	* 1 in level_diff - if there is a 5 level difference, chance
666	* is 1 in 5.	606	* is 1 in 5.
667	*/	607	*/
668	if ((casting_level >= disease->level) \|\| (!(random_roll (0, (disease->level - casting_level - 1), caster, PREFER_LOW))))	608	if ((casting_level >= disease->level) \|\| (!(random_roll (0, (disease->level - casting_level - 1), caster, PREFER_LOW))))
669	{	609	{
670
671	remove_symptoms (disease);	610	remove_symptoms (disease);
672	cure = 1;	611	cure = 1;
673		612
674	if (caster)	613	if (caster && spell)
675	change_exp (caster, disease->stats.exp, caster->chosen_skill ? &caster->chosen_skill->skill : (const char *) 0, 0);	614	change_exp (caster, disease->stats.exp, spell->skill, SK_EXP_SKILL_ONLY);
676		615
677	disease->destroy ();	616	disease->destroy ();
678	}	617	}
679	}	618	}
680	}	619	}
		620
681	if (cure)	621	if (cure)
682	{	622	{
683	/* Only draw these messages once */	623	/* Only draw these messages once */
684	if (caster)	624	if (caster)
685	new_draw_info_format (NDI_UNIQUE, 0, caster, "You cure a disease!");	625	new_draw_info_format (NDI_UNIQUE, 0, caster, "You cure a disease!");
		626
686	new_draw_info (NDI_UNIQUE, 0, sufferer, "You no longer feel diseased.");	627	new_draw_info (NDI_UNIQUE, 0, sufferer, "You no longer feel diseased.");
687	}	628	}
		629
688	return 1;	630	return 1;
689	}	631	}
690		632
691	/* reduces disease progression: reduce_symptoms	633	/* reduces disease progression: reduce_symptoms
692	* return true if we actually reduce a disease.	634	* return true if we actually reduce a disease.
693	*/	635	*/
694
695	int	636	int
696	reduce_symptoms (object *sufferer, int reduction)	637	reduce_symptoms (object *sufferer, int reduction)
697	{	638	{
698	object *walk;	639	object *walk;
699	int success = 0;	640	int success = 0;
…		…
703	if (walk->type == SYMPTOM)	644	if (walk->type == SYMPTOM)
704	{	645	{
705	if (walk->value > 0)	646	if (walk->value > 0)
706	{	647	{
707	success = 1;	648	success = 1;
708	walk->value = MAX (0, walk->value - 2 * reduction);	649	walk->value = max (0, walk->value - 2 * reduction);
709	/* give the disease time to modify this symptom,	650	/* give the disease time to modify this symptom,
710	* and reduce its severity. */	651	* and reduce its severity. */
711	walk->speed_left = 0;	652	walk->speed_left = 0;
712	}	653	}
713	}	654	}
714	}	655	}
		656
715	if (success)	657	if (success)
716	new_draw_info (NDI_UNIQUE, 0, sufferer, "Your illness seems less severe.");	658	new_draw_info (NDI_UNIQUE, 0, sufferer, "Your illness seems less severe.");
		659
717	return success;	660	return success;
718	}	661	}

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Comparing deliantra/server/server/disease.C (file contents): Revision 1.14 by root, Tue Dec 26 08:54:59 2006 UTC vs. Revision 1.54 by root, Fri Nov 6 12:49:19 2009 UTC

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Comparing deliantra/server/server/disease.C (file contents):
Revision 1.14 by root, Tue Dec 26 08:54:59 2006 UTC vs.
Revision 1.54 by root, Fri Nov 6 12:49:19 2009 UTC