[ViewVC] Diff of: cvs/deliantra/server/server/spell

Comparing deliantra/server/server/spell_util.C (file contents):
Revision 1.58 by root, Mon Aug 27 03:56:17 2007 UTC vs.
Revision 1.80 by root, Mon Sep 29 08:25:02 2008 UTC

…		…
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 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
6	* Copyright (©) 1992,2007 Frank Tore Johansen	6	* Copyright (©) 1992,2007 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
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 3 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,
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, see <http://www.gnu.org/licenses/>.	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
20	*	20	*
21	* The authors can be reached via e-mail to <crossfire@schmorp.de>	21	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	22	*/
23		23
24	#include <global.h>	24	#include <global.h>
25	#include <spells.h>	25	#include <spells.h>
26	#include <object.h>	26	#include <object.h>
…		…
36	*/	36	*/
37	object *	37	object *
38	find_random_spell_in_ob (object ob, const char skill)	38	find_random_spell_in_ob (object ob, const char skill)
39	{	39	{
40	int k = 0, s;	40	int k = 0, s;
41	object *tmp;
42		41
43	for (tmp = ob->inv; tmp; tmp = tmp->below)	42	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
44	if (tmp->type == SPELL && (!skill \|\| tmp->skill == skill))	43	if (tmp->type == SPELL && (!skill \|\| tmp->skill == skill))
45	k++;	44	k++;
46		45
47	/* No spells, no need to progess further */	46	/* No spells, no need to progess further */
48	if (!k)	47	if (!k)
49	return NULL;	48	return NULL;
50		49
51	s = RANDOM () % k;	50	s = RANDOM () % k;
52		51
53	for (tmp = ob->inv; tmp; tmp = tmp->below)	52	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
54	if (tmp->type == SPELL && (!skill \|\| tmp->skill == skill))	53	if (tmp->type == SPELL && (!skill \|\| tmp->skill == skill))
55	{
56	if (!s)	54	if (!s)
57	return tmp;	55	return tmp;
58	else	56	else
59	s--;	57	s--;
60	}	58
61	/* Should never get here, but just in case */	59	/* Should never get here, but just in case */
62	return NULL;	60	return 0;
63	}	61	}
64		62
65	/* Relatively simple function that gets used a lot.	63	/* Relatively simple function that gets used a lot.
66	* Basically, it sets up the skill pointer for the spell being	64	* Basically, it sets up the skill pointer for the spell being
67	* cast. If op is really casting the spell, then the skill	65	* cast. If op is really casting the spell, then the skill
…		…
77	dest->skill = spob->skill;	75	dest->skill = spob->skill;
78	else	76	else
79	dest->skill = caster->skill;	77	dest->skill = caster->skill;
80	}	78	}
81		79
82	/* init_spells: This should really be called check_spells, as that
83	* is what it does. It goes through the spells looking for any
84	* obvious errors. This was most useful in debugging when re-doing
85	* all the spells to catch simple errors. To use it all the time
86	* will result in it spitting out messages that aren't really errors.
87	*/
88	void
89	init_spells (void)
90	{
91	#ifdef SPELL_DEBUG
92	static int init_spells_done = 0;
93	int i;
94	archetype *at;
95
96	if (init_spells_done)
97	return;
98	LOG (llevDebug, "Checking spells...\n");
99
100	for_all_archetypes (at)
101	{
102	if (at->type == SPELL)
103	{
104	if (at->skill)
105	{
106	for (i = 1; i < NUM_SKILLS; i++)
107	if (!strcmp (skill_names[i], at->skill))
108	break;
109	if (i == NUM_SKILLS)
110	{
111	LOG (llevError, "Spell %s has improper associated skill %s\n", at->name, at->skill);
112	}
113	}
114	/* other_arch is already checked for in the loader */
115	}
116	}
117
118	i = 0;
119	while (spell_mapping[i])
120	{
121	if (!archetype::find (spell_mapping[i]))
122	{
123	LOG (llevError, "Unable to find spell mapping %s (%i)\n", spell_mapping[i], i);
124	}
125	i++;
126	}
127	LOG (llevDebug, "Checking spells completed.\n");
128	#endif
129	}
130
131	/* Dumps all the spells - now also dumps skill associated with the spell.
132	* not sure what this would be used for, as the data seems pretty
133	* minimal, but easy enough to keep around.
134	*/
135	void
136	dump_spells (void)
137	{
138	archetype *at;
139
140	for_all_archetypes (at)
141	{
142	if (at->type == SPELL)
143	{
144	fprintf (stderr, "%s:%s:%s:%s:%d\n", &at->object::name,
145	&at->archname, at->other_arch ? &at->other_arch->archname : "<nil>", &at->skill, at->level);
146	}
147	}
148	}
149
150	/* pretty basic function - basically just takes	80	/* pretty basic function - basically just takes
151	* an object, sets the x,y, and calls insert_ob_in_map	81	* an object, sets the x,y, and calls insert_ob_in_map
152	*/	82	*/
153	void	83	void
154	spell_effect (object spob, int x, int y, maptile map, object *originator)	84	spell_effect (object spob, int x, int y, maptile map, object *originator)
155	{	85	{
156	if (spob->other_arch)	86	if (spob->other_arch)
157	map->insert (arch_to_object (spob->other_arch), x, y, originator);	87	map->insert (arch_to_object (spob->other_arch), x, y, originator);
		88	}
		89
		90	static int
		91	attuned_bonus (object caster, object spell, int level)
		92	{
		93	// compute the attuned/repelled bonus
		94	// attuned only increases up to 2 times the original level (i.e. bonus <= level) */
		95	// repell has no such quarrels
		96	return (caster->path_attuned & spell->path_attuned ? min (level, +ATTUNE_REPELL) : 0)
		97	+ (caster->path_repelled & spell->path_attuned ? -ATTUNE_REPELL : 0);
158	}	98	}
159		99
160	/*	100	/*
161	* This function takes a caster and spell and presents the	101	* This function takes a caster and spell and presents the
162	* effective level the caster needs to be to cast the spell.	102	* effective level the caster needs to be to cast the spell.
…		…
168	* Returns modified level.	108	* Returns modified level.
169	*/	109	*/
170	int	110	int
171	min_casting_level (object caster, object spell)	111	min_casting_level (object caster, object spell)
172	{	112	{
173	int new_level;
174
175	if (caster->path_denied & spell->path_attuned)	113	if (caster->path_denied & spell->path_attuned)
176	return 1;	114	return 500;
177		115
178	new_level = spell->level	116	return max (1, spell->level + attuned_bonus (caster, spell, spell->level));
179	+ (caster->path_repelled & spell->path_attuned ? +2 : 0)
180	+ (caster->path_attuned & spell->path_attuned ? -2 : 0);
181
182	return max (1, new_level);
183	}	117	}
184		118
185	/* This function returns the effective level the spell	119	/* This function returns the effective level the spell
186	* is being cast at.	120	* is being cast at.
187	* Note that I changed the repelled/attuned bonus to 2 from 5.
188	* This is because the new code compares casting_level against
189	* min_caster_level, so the difference is effectively 4
190	*/	121	*/
191	int	122	int
192	caster_level (object caster, object spell)	123	casting_level (object caster, object spell)
193	{	124	{
194	int level = caster->level;	125	int level = caster->level;
195
196	/* If this is a player, try to find the matching skill */
197	if (caster->type == PLAYER && spell->skill)
198	for (int i = 0; i < NUM_SKILLS; i++)
199	if (caster->contr->last_skill_ob[i] && caster->contr->last_skill_ob[i]->skill == spell->skill)
200	{
201	level = caster->contr->last_skill_ob[i]->level;
202	break;
203	}
204		126
205	/* if a rod is fired by a player, take the use_magic_item skill in consideration. */	127	/* if a rod is fired by a player, take the use_magic_item skill in consideration. */
206	if (caster->type == ROD && caster->env && caster->env->type == PLAYER)	128	if (caster->type == ROD && caster->env && caster->env->type == PLAYER)
207	{	129	{
208	object *skill = find_skill_by_number (caster->env, SK_USE_MAGIC_ITEM);	130	object *skill = find_skill_by_number (caster->env, SK_USE_MAGIC_ITEM);
209	int sk_level = skill ? skill->level : 1;	131	int sk_level = skill ? skill->level : 1;
210		132
211	level = MIN (level, sk_level + level / 10 + 1);	133	level = min (level, sk_level + level / 10 + 1);
212	}	134	}
		135	else if (caster->type == PLAYER) /* If this is a player, try to find the matching skill */
		136	if (object *skill = caster->contr->find_skill (spell->skill))
		137	level = skill->level;
213		138
214	/* Got valid caster level. Now adjust for attunement */	139	int bonus = attuned_bonus (caster, spell, level);
215	level += caster->path_repelled & spell->path_attuned ? -2 : 0;	140
216	level += caster->path_attuned & spell->path_attuned ? +2 : 0;	141	level += bonus;
		142
		143	// now scale the effective level from the startinglevel..100 range to 1..100
		144	if (level < 100)
		145	level = lerp (level, (int)spell->level, 100, 1, 100);
217		146
218	/* Always make this at least 1. If this is zero, we get divide by zero	147	/* Always make this at least 1. If this is zero, we get divide by zero
219	* errors in various places.	148	* errors in various places.
220	*/	149	*/
221	return max (level, 1);	150	return max (level, 1);
…		…
230	* caster is what is casting the spell, can be op.	159	* caster is what is casting the spell, can be op.
231	* spell is the spell object.	160	* spell is the spell object.
232	* Note that it is now possible for a spell to cost both grace and	161	* Note that it is now possible for a spell to cost both grace and
233	* mana. In that case, we return which ever value is higher.	162	* mana. In that case, we return which ever value is higher.
234	*/	163	*/
235
236	sint16	164	sint16
237	SP_level_spellpoint_cost (object caster, object spell, int flags)	165	SP_level_spellpoint_cost (object caster, object spell, int flags)
238	{	166	{
239	int sp, grace, level = caster_level (caster, spell);	167	int sp, grace, level = casting_level (caster, spell);
240		168
241	if (settings.spellpoint_level_depend == TRUE)	169	if (settings.spellpoint_level_depend == TRUE)
242	{	170	{
243	if (spell->stats.sp && spell->stats.maxsp)	171	if (spell->stats.sp && spell->stats.maxsp)
244	{	172	{
…		…
265	else	193	else
266	{	194	{
267	sp = (int) (spell->stats.sp * PATH_SP_MULT (caster, spell));	195	sp = (int) (spell->stats.sp * PATH_SP_MULT (caster, spell));
268	if (spell->stats.sp && !sp)	196	if (spell->stats.sp && !sp)
269	sp = 1;	197	sp = 1;
		198
270	grace = (int) (spell->stats.grace * PATH_SP_MULT (caster, spell));	199	grace = (int) (spell->stats.grace * PATH_SP_MULT (caster, spell));
271	if (spell->stats.grace && !grace)	200	if (spell->stats.grace && !grace)
272	grace = 1;	201	grace = 1;
273	}	202	}
		203
274	if (flags == SPELL_HIGHEST)	204	if (flags == SPELL_HIGHEST)
275	return MAX (sp, grace);	205	return MAX (sp, grace);
276	else if (flags == SPELL_GRACE)	206	else if (flags == SPELL_GRACE)
277	return grace;	207	return grace;
278	else if (flags == SPELL_MANA)	208	else if (flags == SPELL_MANA)
…		…
282	LOG (llevError, "SP_level_spellpoint_cost: Unknown flags passed: %d\n", flags);	212	LOG (llevError, "SP_level_spellpoint_cost: Unknown flags passed: %d\n", flags);
283	return 0;	213	return 0;
284	}	214	}
285	}	215	}
286		216
		217	/*
		218	* Return the effective casting level of the spell.
		219	* To make spells independent of their starting level, this function
		220	* scales the range spellstartlevel .. 100 into the range 1..100
		221	*/
		222	static int
		223	SP_casting_level (object caster, object spell)
		224	{
		225	return casting_level (caster, spell);
		226	}
287		227
288	/* SP_level_dam_adjust: Returns adjusted damage based on the caster.	228	/* SP_level_dam_adjust: Returns adjusted damage based on the caster.
289	* spob is the spell we are adjusting.	229	* spob is the spell we are adjusting.
290	*/	230	*/
291	int	231	int
292	SP_level_dam_adjust (object caster, object spob)	232	SP_level_dam_adjust (object caster, object spob)
293	{	233	{
294	int level = caster_level (caster, spob);
295	int adj = level - min_casting_level (caster, spob);
296
297	if (adj < 0)
298	adj = 0;
299	if (spob->dam_modifier)	234	if (!spob->dam_modifier)
300	adj /= spob->dam_modifier;
301	else
302	adj = 0;
303	return adj;	235	return 0;
		236
		237	return SP_casting_level (caster, spob) / spob->dam_modifier;
304	}	238	}
305		239
306	/* Adjust the strength of the spell based on level.	240	/* Adjust the strength of the spell based on level.
307	* This is basically the same as SP_level_dam_adjust above,	241	* This is basically the same as SP_level_dam_adjust above,
308	* but instead looks at the level_modifier value.	242	* but instead looks at the level_modifier value.
309	*/	243	*/
310	int	244	int
311	SP_level_duration_adjust (object caster, object spob)	245	SP_level_duration_adjust (object caster, object spob)
312	{	246	{
313	int level = caster_level (caster, spob);
314	int adj = level - min_casting_level (caster, spob);
315
316	if (adj < 0)
317	adj = 0;
318	if (spob->duration_modifier)	247	if (!spob->duration_modifier)
319	adj /= spob->duration_modifier;
320	else
321	adj = 0;
322
323	return adj;	248	return 0;
		249
		250	return SP_casting_level (caster, spob) / spob->duration_modifier;
324	}	251	}
325		252
326	/* Adjust the strength of the spell based on level.	253	/* Adjust the strength of the spell based on level.
327	* This is basically the same as SP_level_dam_adjust above,	254	* This is basically the same as SP_level_dam_adjust above,
328	* but instead looks at the level_modifier value.	255	* but instead looks at the level_modifier value.
329	*/	256	*/
330	int	257	int
331	SP_level_range_adjust (object caster, object spob)	258	SP_level_range_adjust (object caster, object spob)
332	{	259	{
333	int level = caster_level (caster, spob);
334	int adj = level - min_casting_level (caster, spob);
335
336	if (adj < 0)
337	adj = 0;
338	if (spob->range_modifier)	260	if (!spob->range_modifier)
339	adj /= spob->range_modifier;
340	else
341	adj = 0;
342
343	return adj;	261	return 0;
		262
		263	return SP_casting_level (caster, spob) / spob->range_modifier;
344	}	264	}
345		265
346	/* Checks to see if player knows the spell. If the name is the same	266	/* Checks to see if player knows the spell. If the name is the same
347	* as an existing spell, we presume they know it.	267	* as an existing spell, we presume they know it.
348	* returns 1 if they know the spell, 0 if they don't.	268	* returns 1 if they know the spell, 0 if they don't.
349	*/	269	*/
350	object *	270	object *
351	check_spell_known (object op, const char name)	271	check_spell_known (object op, const char name)
352	{	272	{
353	object *spop;	273	object *spop;
		274	shstr_cmp name_ (name);
354		275
355	for (spop = op->inv; spop; spop = spop->below)	276	for (spop = op->inv; spop; spop = spop->below)
356	if (spop->type == SPELL && !strcmp (spop->name, name))	277	if (spop->type == SPELL && spop->name == name)
357	return spop;	278	return spop;
358		279
359	return NULL;	280	return 0;
360	}	281	}
361
362		282
363	/*	283	/*
364	* Look at object 'op' and see if they know the spell	284	* Look at object 'op' and see if they know the spell
365	* spname. This is pretty close to check_spell_known	285	* spname. This is pretty close to check_spell_known
366	* above, but it uses a looser matching mechanism.	286	* above, but it uses a looser matching mechanism.
367	* returns the matching spell object, or NULL.	287	* returns the matching spell object, or NULL.
368	* If we match multiple spells but don't get an	288	* If we match multiple spells but don't get an
369	* exact match, we also return NULL.	289	* exact match, we also return NULL.
370	*/	290	*/
371
372	object *	291	object *
373	lookup_spell_by_name (object op, const char spname)	292	lookup_spell_by_name (object op, const char spname)
374	{	293	{
375	object spob1 = NULL, spob2 = NULL, *spob;	294	object spob1 = NULL, spob2 = NULL, *spob;
376	int nummatch = 0;	295	int nummatch = 0;
…		…
422	* eg, updated for tiled maps.	341	* eg, updated for tiled maps.
423	*/	342	*/
424	int	343	int
425	reflwall (maptile m, int x, int y, object sp_op)	344	reflwall (maptile m, int x, int y, object sp_op)
426	{	345	{
427	object *op;
428
429	if (OUT_OF_REAL_MAP (m, x, y))	346	if (OUT_OF_REAL_MAP (m, x, y))
430	return 0;	347	return 0;
		348
431	for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above)	349	for (object *op = GET_MAP_OB (m, x, y); op; op = op->above)
432	if (QUERY_FLAG (op, FLAG_REFL_SPELL)	350	if (QUERY_FLAG (op, FLAG_REFL_SPELL)
433	&& (!QUERY_FLAG (op, FLAG_ALIVE)	351	&& (!QUERY_FLAG (op, FLAG_ALIVE)
434	\|\| (rndm (0, 99)) < 90 - (sp_op->level / 10)))	352	\|\| (rndm (0, 99)) < 90 - (sp_op->level / 10)))
435	return 1;	353	return 1;
436		354
…		…
481	{	399	{
482	if (!xy_normalise (m, x, y))	400	if (!xy_normalise (m, x, y))
483	return 0;	401	return 0;
484		402
485	mapspace &ms = m->at (x, y);	403	mapspace &ms = m->at (x, y);
		404	ms.update ();
486		405
487	if (OB_TYPE_MOVE_BLOCK (op, ms.move_block))	406	if (OB_TYPE_MOVE_BLOCK (op, ms.move_block))
488	return 0;	407	return 0;
489		408
490	for (object *tmp = ms.bot; tmp; tmp = tmp->above)	409	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
…		…
526	/*	445	/*
527	* Combine similar spell effects into one spell effect. Needed for	446	* Combine similar spell effects into one spell effect. Needed for
528	* performance reasons with meteor swarm and the like, but also for	447	* performance reasons with meteor swarm and the like, but also for
529	* playability reasons.	448	* playability reasons.
530	*/	449	*/
531	if (tmp->arch == op->arch	450	if (tmp->arch == op->arch /* no harm if not comparing by name here */
532	&& tmp->type == op->type	451	&& tmp->type == op->type
533	&& tmp->subtype == op->subtype	452	&& tmp->subtype == op->subtype
534	&& tmp->owner == op->owner	453	&& tmp->owner == op->owner
535	&& ((tmp->subtype == SP_EXPLOSION) \|\| (tmp->subtype == SP_CONE && tmp->stats.sp == op->stats.sp)))	454	&& ((tmp->subtype == SP_EXPLOSION) \|\| (tmp->subtype == SP_CONE && tmp->stats.sp == op->stats.sp)))
536	{	455	{
…		…
557	* dir: direction to fire in.	476	* dir: direction to fire in.
558	* spell: spell that is being fired. It uses other_arch for the archetype	477	* spell: spell that is being fired. It uses other_arch for the archetype
559	* to fire.	478	* to fire.
560	* returns 0 on failure, 1 on success.	479	* returns 0 on failure, 1 on success.
561	*/	480	*/
562
563	int	481	int
564	fire_arch_from_position (object op, object caster, sint16 x, sint16 y, int dir, object *spell)	482	fire_arch_from_position (object op, object caster, sint16 x, sint16 y, int dir, object *spell)
565	{	483	{
566	object *tmp;
567	int mflags;
568	maptile *m;
569
570	if (spell->other_arch == NULL)	484	if (!spell->other_arch)
571	return 0;	485	return 0;
572		486
573	m = op->map;	487	object *tmp = spell->other_arch->instance ();
574	mflags = get_map_flags (m, &m, x, y, &x, &y);
575	if (mflags & P_OUT_OF_MAP)
576	{
577	return 0;
578	}
579		488
580	tmp = arch_to_object (spell->other_arch);	489	if (!tmp)
581
582	if (tmp == NULL)
583	return 0;	490	return 0;
584
585	if (OB_TYPE_MOVE_BLOCK (tmp, GET_MAP_MOVE_BLOCK (m, x, y)))
586	{
587	new_draw_info (NDI_UNIQUE, 0, op, "You can't cast the spell on top of a wall!\n");
588	tmp->destroy ();
589	return 0;
590	}
591		491
592	tmp->stats.dam = spell->stats.dam + SP_level_dam_adjust (caster, spell);	492	tmp->stats.dam = spell->stats.dam + SP_level_dam_adjust (caster, spell);
593	tmp->duration = spell->duration + SP_level_duration_adjust (caster, spell);	493	tmp->duration = spell->duration + SP_level_duration_adjust (caster, spell);
594	/* code in time.c uses food for some things, duration for others */	494	/* code in time.c uses food for some things, duration for others */
595	tmp->stats.food = tmp->duration;	495	tmp->stats.food = tmp->duration;
596	tmp->range = spell->range + SP_level_range_adjust (caster, spell);	496	tmp->range = spell->range + SP_level_range_adjust (caster, spell);
597	tmp->attacktype = spell->attacktype;	497	tmp->attacktype = spell->attacktype;
598	tmp->x = x;
599	tmp->y = y;
600	tmp->direction = dir;	498	tmp->direction = dir;
601	if (op->owner != NULL)
602	tmp->set_owner (op);	499	tmp->set_owner (op);
603	else
604	tmp->set_owner (op);
605	tmp->level = caster_level (caster, spell);	500	tmp->level = casting_level (caster, spell);
606	set_spell_skill (op, caster, spell, tmp);	501	set_spell_skill (op, caster, spell, tmp);
607		502
608	/* needed for AT_HOLYWORD,AT_GODPOWER stuff */	503	/* needed for AT_HOLYWORD,AT_GODPOWER stuff */
609	if (tmp->attacktype & AT_HOLYWORD \|\| tmp->attacktype & AT_GODPOWER)	504	if (tmp->attacktype & AT_HOLYWORD \|\| tmp->attacktype & AT_GODPOWER)
610	{
611	if (!tailor_god_spell (tmp, op))	505	if (!tailor_god_spell (tmp, op))
612	return 0;	506	return 0;
613	}	507
614	if (QUERY_FLAG (tmp, FLAG_IS_TURNABLE))	508	if (QUERY_FLAG (tmp, FLAG_IS_TURNABLE))
615	SET_ANIMATION (tmp, dir);	509	SET_ANIMATION (tmp, dir);
616		510
617	if ((tmp = insert_ob_in_map (tmp, m, op, 0)))	511	if ((tmp = op->map->insert (tmp, x, y, op)))
618	move_spell_effect (tmp);	512	move_spell_effect (tmp);
619		513
620	return 1;	514	return 1;
621	}	515	}
622		516
…		…
677	if (!tmp)	571	if (!tmp)
678	tmp = op->ms ().player ();	572	tmp = op->ms ().player ();
679		573
680	return tmp;	574	return tmp;
681	}	575	}
682
683
684		576
685	/* raytrace:	577	/* raytrace:
686	* spell_find_dir(map, x, y, exclude) will search first the center square	578	* spell_find_dir(map, x, y, exclude) will search first the center square
687	* then some close squares in the given map at the given coordinates for	579	* then some close squares in the given map at the given coordinates for
688	* live objects.	580	* live objects.
…		…
691	* monsters/generators only. If not, the spell will hunt players only.	583	* monsters/generators only. If not, the spell will hunt players only.
692	* It returns the direction toward the first/closest live object if it finds	584	* It returns the direction toward the first/closest live object if it finds
693	* any, otherwise -1.	585	* any, otherwise -1.
694	* note that exclude can be NULL, in which case all bets are off.	586	* note that exclude can be NULL, in which case all bets are off.
695	*/	587	*/
696
697	int	588	int
698	spell_find_dir (maptile m, int x, int y, object exclude)	589	spell_find_dir (maptile m, int x, int y, object exclude)
699	{	590	{
700	int i, max = SIZEOFFREE;	591	int i, max = SIZEOFFREE;
701	sint16 nx, ny;	592	sint16 nx, ny;
…		…
781	create_treasure (head->randomitems, head, GT_INVISIBLE, op->map->difficulty, 0);	672	create_treasure (head->randomitems, head, GT_INVISIBLE, op->map->difficulty, 0);
782		673
783	insert_ob_in_map (head, op->map, op, 0);	674	insert_ob_in_map (head, op->map, op, 0);
784		675
785	/* thought it'd be cool to insert a burnout, too. */	676	/* thought it'd be cool to insert a burnout, too. */
786	op->map->insert (get_archetype ("burnout"), op->x + freearr_x[dir], op->y + freearr_y[dir], op);	677	op->map->insert (archetype::get (shstr_burnout), op->x + freearr_x[dir], op->y + freearr_y[dir], op);
787	}	678	}
788	}	679	}
789		680
790	/* peterm: function which summons hostile monsters and	681	/* peterm: function which summons hostile monsters and
791	* places them in nearby squares.	682	* places them in nearby squares.
…		…
1046	*/	937	*/
1047	int	938	int
1048	cast_spell (object op, object caster, int dir, object spell_ob, char stringarg)	939	cast_spell (object op, object caster, int dir, object spell_ob, char stringarg)
1049	{	940	{
1050	const char *godname;	941	const char *godname;
1051	int success = 0, mflags, cast_level = 0;	942	int success = 0, cast_level = 0;
1052	object *skill = NULL;	943	object *skill = NULL;
1053		944
1054	if (!spell_ob)	945	if (!spell_ob)
1055	{	946	{
1056	LOG (llevError, "cast_spell: null spell object passed\n");	947	LOG (llevError, "cast_spell: null spell object passed\n");
…		…
1085	* need to have the right skill pointer passed, so we need to	976	* need to have the right skill pointer passed, so we need to
1086	* at least process that code.	977	* at least process that code.
1087	*/	978	*/
1088	if (op->type == PLAYER && op == caster)	979	if (op->type == PLAYER && op == caster)
1089	{	980	{
1090	cast_level = caster_level (caster, spell_ob);
1091
1092	if (spell_ob->skill)	981	if (spell_ob->skill)
1093	{	982	{
1094	skill = find_skill_by_name (op, spell_ob->skill);	983	skill = find_skill_by_name (op, spell_ob->skill);
1095		984
1096	if (!skill)	985	if (!skill)
1097	{	986	{
1098	new_draw_info_format (NDI_UNIQUE, 0, op, "You need the skill %s to cast %s.", &spell_ob->skill, &spell_ob->name);	987	op->failmsg (format ("You need the skill %s to cast %s! "
		988	"H<You either need to learn the skill via a skill scroll "
		989	"or you need to wear a talisman or holy symbol.>",
		990	&spell_ob->skill, &spell_ob->name));
1099	return 0;	991	return 0;
1100	}	992	}
1101		993
1102	if (min_casting_level (op, spell_ob) > cast_level && !QUERY_FLAG (op, FLAG_WIZ))	994	const char *msg = "";
		995
		996	int caster_level = skill->level;
		997
		998	if (op->path_attuned & spell_ob->path_attuned)
1103	{	999	{
1104	new_draw_info (NDI_UNIQUE, 0, op, "You lack enough skill to cast that spell.");	1000	caster_level += min (cast_level * 2, ATTUNE_REPELL);
		1001	msg = " (attuned)";
		1002	}
		1003
		1004	if (op->path_repelled & spell_ob->path_attuned)
		1005	{
		1006	caster_level = ATTUNE_REPELL; // negative is ok
		1007	msg = " (repelled)";
		1008	}
		1009
		1010	if (spell_ob->level > caster_level)
		1011	{
		1012	op->failmsg (format ("You lack enough skill to cast that spell! "
		1013	"H<Your effective cast level is %d%s, but level %d is required.>",
		1014	caster_level, msg, spell_ob->level));
		1015	if (!op->is_wiz ())
1105	return 0;	1016	return 0;
1106	}	1017	}
1107	}	1018	}
1108		1019
1109	/* If the caster is the wiz, they don't ever fail, and don't have	1020	/* If the caster is the wiz, they don't ever fail, and don't have
1110	* to have sufficient grace/mana.	1021	* to have sufficient grace/mana.
…		…
1112	if (!QUERY_FLAG (op, FLAG_WIZ))	1023	if (!QUERY_FLAG (op, FLAG_WIZ))
1113	{	1024	{
1114	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&	1025	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&
1115	SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) > op->stats.sp)	1026	SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) > op->stats.sp)
1116	{	1027	{
1117	new_draw_info (NDI_UNIQUE, 0, op, "You don't have enough mana.");	1028	op->failmsg ("You don't have enough mana!");
1118	return 0;	1029	return 0;
1119	}	1030	}
1120		1031
1121	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) &&	1032	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) &&
1122	SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) > op->stats.grace)	1033	SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) > op->stats.grace)
1123	{	1034	{
1124	if (random_roll (0, op->stats.Wis - 1, op, PREFER_HIGH) + op->stats.grace -	1035	if (random_roll (0, op->stats.Wis - 1, op, PREFER_HIGH) + op->stats.grace -
1125	10 * SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) / op->stats.maxgrace > 0)	1036	10 * SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) / op->stats.maxgrace > 0)
1126	{
1127	new_draw_info_format (NDI_UNIQUE, 0, op, "%s grants your prayer, though you are unworthy.", godname);	1037	op->statusmsg (format ("%s grants your prayer, though you are unworthy.", godname));
1128	}
1129	else	1038	else
1130	{	1039	{
1131	prayer_failure (op, op->stats.grace, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) - op->stats.grace);	1040	prayer_failure (op, op->stats.grace, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) - op->stats.grace);
1132	new_draw_info_format (NDI_UNIQUE, 0, op, "%s ignores your prayer.", godname);	1041	op->failmsg (format ("%s ignores your prayer.", godname));
1133	return 0;	1042	return 0;
1134	}	1043	}
1135	}	1044	}
1136		1045
1137	/* player/monster is trying to cast the spell. might fumble it */	1046	/* player/monster is trying to cast the spell. might fumble it */
1138	if (spell_ob->stats.grace && random_roll (0, 99, op, PREFER_HIGH) <	1047	if (spell_ob->stats.grace && random_roll (0, 99, op, PREFER_HIGH) <
1139	(spell_ob->level / (float) MAX (1, op->level) * cleric_chance[op->stats.Wis]))	1048	(spell_ob->level / (float) MAX (1, op->level) * cleric_chance[op->stats.Wis]))
1140	{	1049	{
1141	op->contr->play_sound (sound_find ("fumble_spell"));	1050	op->contr->play_sound (sound_find ("fumble_spell"));
1142	new_draw_info (NDI_UNIQUE, 0, op, "You fumble the prayer.");	1051	op->failmsg ("You fumble the prayer.");
1143		1052
1144	op->stats.grace -= random_roll (1, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE), op, PREFER_LOW);	1053	op->stats.grace -= random_roll (1, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE), op, PREFER_LOW);
1145	return 0;	1054	return 0;
1146	}	1055	}
1147	else if (spell_ob->stats.sp)	1056	else if (spell_ob->stats.sp)
1148	{	1057	{
1149	int failure = random_roll (0, 199, op, PREFER_HIGH) - op->contr->encumbrance + op->level - spell_ob->level + 35;	1058	int failure = random_roll (0, 199, op, PREFER_HIGH) - op->contr->encumbrance + op->level - spell_ob->level + 35;
1150		1059
1151	if (failure < 0)	1060	if (failure < 0)
1152	{	1061	{
1153	new_draw_info (NDI_UNIQUE, 0, op, "You bungle the spell because you have too much heavy equipment in use.");	1062	op->failmsg ("You bungle the spell because you have too much heavy equipment in use.");
1154	if (settings.spell_failure_effects == TRUE)	1063	if (settings.spell_failure_effects == TRUE)
1155	spell_failure (op, failure, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), skill);	1064	spell_failure (op, failure, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), skill);
1156		1065
1157	op->stats.sp -= random_roll (0, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), op, PREFER_LOW);	1066	op->stats.sp -= random_roll (0, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), op, PREFER_LOW);
1158	return 0;	1067	return 0;
1159	}	1068	}
1160	}	1069	}
1161	}	1070	}
1162	}	1071	}
1163		1072
1164	mflags = get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL);	1073	int mflags = op->ms ().flags ();
1165		1074
1166	/* See if we can cast a spell here. If the caster and op are	1075	/* See if we can cast a spell here. If the caster and op are
1167	* not alive, then this would mean that the mapmaker put the	1076	* not alive, then this would mean that the mapmaker put the
1168	* objects on the space - presume that they know what they are	1077	* objects on the space - presume that they know what they are
1169	* doing.	1078	* doing.
…		…
1188	if ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)	1097	if ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)
1189	op->failmsg (format ("This ground is unholy! %s ignores you.", godname));	1098	op->failmsg (format ("This ground is unholy! %s ignores you.", godname));
1190	else if (object *item = op->contr->ranged_ob)	1099	else if (object *item = op->contr->ranged_ob)
1191	{	1100	{
1192	if (item->type == SPELL)	1101	if (item->type == SPELL)
1193	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks your spellcasting.");	1102	op->failmsg ("Something blocks your spellcasting.");
1194	else if (item->type == SCROLL)	1103	else if (item->type == SCROLL)
1195	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks the magic of your scroll.");	1104	op->failmsg ("Something blocks the magic of your scroll.");
1196	else	1105	else
1197	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks the magic of your item.");	1106	op->failmsg ("Something blocks the magic of your item.");
1198	}	1107	}
1199	else	1108	else
1200	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks the spell!");	1109	op->failmsg ("Something blocks the spell!");
1201		1110
1202	return 0;	1111	return 0;
1203	}	1112	}
1204		1113
1205	/* Take into account how long it takes to cast the spell.	1114	/* Take into account how long it takes to cast the spell.
…		…
1230		1139
1231	/* We want to try to find the skill to properly credit exp.	1140	/* We want to try to find the skill to properly credit exp.
1232	* for spell casting objects, the exp goes to the skill the casting	1141	* for spell casting objects, the exp goes to the skill the casting
1233	* object requires.	1142	* object requires.
1234	*/	1143	*/
1235	fprintf (stderr, "op %p caster %p skill %p cs %s\n", (long)op, (long)caster,(long) skill, &caster->skill);//D
1236	if (op != caster && !skill && caster->skill)	1144	if (op != caster && !skill && caster->skill)
1237	{	1145	{
1238	skill = find_skill_by_name (op, caster->skill);	1146	skill = find_skill_by_name (op, caster->skill);
1239	if (!skill)	1147	if (!skill)
1240	{	1148	{
1241	new_draw_info_format (NDI_UNIQUE, 0, op, "You lack the skill %s to use the %s", &caster->skill, query_name (caster));	1149	op->failmsg (format ("You lack the skill %s to use the %s!", &caster->skill, query_name (caster)));
1242	return 0;	1150	return 0;
1243	}	1151	}
1244		1152
1245	op->change_skill (skill); /* needed for proper exp credit */	1153	op->change_skill (skill); /* needed for proper exp credit */
1246	}	1154	}
…		…
1288	case SP_SMITE:	1196	case SP_SMITE:
1289	success = cast_smite_spell (op, caster, dir, spell_ob);	1197	success = cast_smite_spell (op, caster, dir, spell_ob);
1290	break;	1198	break;
1291		1199
1292	case SP_MAGIC_MISSILE:	1200	case SP_MAGIC_MISSILE:
1293	success = fire_arch_from_position (op, caster, op->x + freearr_x[dir], op->y + freearr_y[dir], dir, spell_ob);	1201	success = fire_arch_from_position (op, caster, op->x, op->y, dir, spell_ob);
1294	break;	1202	break;
1295		1203
1296	case SP_SUMMON_GOLEM:	1204	case SP_SUMMON_GOLEM:
1297	success = summon_golem (op, caster, dir, spell_ob);	1205	success = summon_golem (op, caster, dir, spell_ob);
1298	break;	1206	break;
…		…
1375	#ifdef NO_POLYMORPH	1283	#ifdef NO_POLYMORPH
1376	/* Not great, but at least provide feedback so if players do have	1284	/* Not great, but at least provide feedback so if players do have
1377	* polymorph (ie, find it as a preset item or left over from before	1285	* polymorph (ie, find it as a preset item or left over from before
1378	* it was disabled), they get some feedback.	1286	* it was disabled), they get some feedback.
1379	*/	1287	*/
1380	new_draw_info (NDI_UNIQUE, 0, op, "The spell fizzles");	1288	op->failmsg ("The spell fizzles!");
1381	success = 0;	1289	success = 0;
1382	#else	1290	#else
1383	success = cast_polymorph (op, caster, spell_ob, dir);	1291	success = cast_polymorph (op, caster, spell_ob, dir);
1384	#endif	1292	#endif
1385	break;	1293	break;
…		…
1405	break;	1313	break;
1406		1314
1407	case SP_MOVING_BALL:	1315	case SP_MOVING_BALL:
1408	if (spell_ob->path_repelled && (spell_ob->path_repelled & caster->path_attuned) != spell_ob->path_repelled)	1316	if (spell_ob->path_repelled && (spell_ob->path_repelled & caster->path_attuned) != spell_ob->path_repelled)
1409	{	1317	{
1410	new_draw_info_format (NDI_UNIQUE, 0, op, "You lack the proper attunement to cast %s", &spell_ob->name);	1318	op->failmsg (format ("You lack the proper attunement to cast %s!", &spell_ob->name));
1411	success = 0;	1319	success = 0;
1412	}	1320	}
1413	else	1321	else
1414	success = fire_arch_from_position (op, caster, op->x + freearr_x[dir], op->y + freearr_y[dir], dir, spell_ob);	1322	success = fire_arch_from_position (op, caster, op->x, op->y, dir, spell_ob);
1415	break;	1323	break;
1416		1324
1417	case SP_SWARM:	1325	case SP_SWARM:
1418	success = fire_swarm (op, caster, spell_ob, dir);	1326	success = fire_swarm (op, caster, spell_ob, dir);
1419	break;	1327	break;
…		…
1465		1373
1466	default:	1374	default:
1467	LOG (llevError, "cast_spell: Unhandled spell subtype %d\n", spell_ob->subtype);	1375	LOG (llevError, "cast_spell: Unhandled spell subtype %d\n", spell_ob->subtype);
1468	}	1376	}
1469		1377
1470	op->play_sound (success ? spell_ob->sound : sound_find ("fumble_spell"));	1378	op->play_sound (
		1379	success
		1380	? spell_ob->sound
		1381	? spell_ob->sound
		1382	: sound_find ("spell_success")
		1383	: sound_find ("fumble_spell")
		1384	);
1471		1385
1472	return success;	1386	return success;
1473	}	1387	}
1474		1388
1475
1476	/* This is called from time.c/process_object(). That function	1389	/* This is called from time.c/process_object(). That function
1477	* calls this for any SPELL_EFFECT type objects. This function	1390	* calls this for any SPELL_EFFECT type objects. This function
1478	* then dispatches them to the appropriate specific routines.	1391	* then dispatches them to the appropriate specific routines.
1479	*/	1392	*/
1480	void	1393	void
1481	move_spell_effect (object *op)	1394	move_spell_effect (object *op)
1482	{	1395	{
…		…
1540	check_bullet (op);	1453	check_bullet (op);
1541	return;	1454	return;
1542	}	1455	}
1543	}	1456	}
1544		1457
1545	/* This is called by move_apply. Basically, if someone	1458	/* This is called by move_apply. Basically, if someone
1546	* moves onto a spell effect and the walk_on or fly_on flags	1459	* moves onto a spell effect and the walk_on or fly_on flags
1547	* are set, this is called. This should only be called for	1460	* are set, this is called. This should only be called for
1548	* objects of the appropraite type.	1461	* objects of the appropriate type.
1549	*/	1462	*/
1550	void	1463	void
1551	apply_spell_effect (object spell, object victim)	1464	apply_spell_effect (object spell, object victim)
1552	{	1465	{
1553	switch (spell->subtype)	1466	switch (spell->subtype)
…		…
1573	else if (victim->materialname)	1486	else if (victim->materialname)
1574	save_throw_object (victim, spell->attacktype, spell);	1487	save_throw_object (victim, spell->attacktype, spell);
1575	break;	1488	break;
1576	}	1489	}
1577	}	1490	}
		1491

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Comparing deliantra/server/server/spell_util.C (file contents): Revision 1.58 by root, Mon Aug 27 03:56:17 2007 UTC vs. Revision 1.80 by root, Mon Sep 29 08:25:02 2008 UTC

Diff Legend

Comparing deliantra/server/server/spell_util.C (file contents):
Revision 1.58 by root, Mon Aug 27 03:56:17 2007 UTC vs.
Revision 1.80 by root, Mon Sep 29 08:25:02 2008 UTC