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

Comparing deliantra/server/server/spell_util.C (file contents):
Revision 1.59 by root, Mon Aug 27 05:10:51 2007 UTC vs.
Revision 1.83 by root, Mon Sep 29 11:52:34 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 ()
137	{
138	for_all_archetypes (at)
139	if (at->type == SPELL)
140	fprintf (stderr, "%s:%s:%s:%s:%d\n", &at->object::name,
141	&at->archname, at->other_arch ? &at->other_arch->archname : "<nil>", &at->skill, at->level);
142	}
143
144	/* pretty basic function - basically just takes	80	/* pretty basic function - basically just takes
145	* 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
146	*/	82	*/
147	void	83	void
148	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)
149	{	85	{
150	if (spob->other_arch)	86	if (spob->other_arch)
151	map->insert (arch_to_object (spob->other_arch), x, y, originator);	87	map->insert (arch_to_object (spob->other_arch), x, y, originator);
152	}	88	}
153		89
154	/*	90	static int
155	* This function takes a caster and spell and presents the	91	attuned_bonus (object caster, object spell, int level)
156	* effective level the caster needs to be to cast the spell.
157	* basically, it just adjusts the spell->level with attuned/repelled
158	* spellpaths. Was called path_level_mod.
159	*
160	* caster is person casting the spell.
161	* spell is the spell object.
162	* Returns modified level.
163	*/
164	int
165	min_casting_level (object caster, object spell)
166	{	92	{
167	int new_level;	93	// compute the attuned/repelled bonus
168		94	// attuned only increases up to 2 times the original level (i.e. bonus <= level) */
169	if (caster->path_denied & spell->path_attuned)	95	// repell has no such quarrels
170	return 1;	96	return (caster->path_attuned & spell->path_attuned ? min (level, +ATTUNE_REPELL) : 0)
171
172	new_level = spell->level
173	+ (caster->path_repelled & spell->path_attuned ? +2 : 0)	97	+ (caster->path_repelled & spell->path_attuned ? -ATTUNE_REPELL : 0);
174	+ (caster->path_attuned & spell->path_attuned ? -2 : 0);
175
176	return max (1, new_level);
177	}	98	}
178		99
179	/* This function returns the effective level the spell	100	/* This function returns the effective level the spell
180	* is being cast at.	101	* is being cast at.
181	* Note that I changed the repelled/attuned bonus to 2 from 5.
182	* This is because the new code compares casting_level against
183	* min_caster_level, so the difference is effectively 4
184	*/	102	*/
185	int	103	int
186	caster_level (object caster, object spell)	104	casting_level (object caster, object spell)
187	{	105	{
188	int level = caster->level;	106	int level = caster->level;
189
190	/* If this is a player, try to find the matching skill */
191	if (caster->type == PLAYER && spell->skill)
192	for (int i = 0; i < NUM_SKILLS; i++)
193	if (caster->contr->last_skill_ob[i] && caster->contr->last_skill_ob[i]->skill == spell->skill)
194	{
195	level = caster->contr->last_skill_ob[i]->level;
196	break;
197	}
198		107
199	/* if a rod is fired by a player, take the use_magic_item skill in consideration. */	108	/* if a rod is fired by a player, take the use_magic_item skill in consideration. */
200	if (caster->type == ROD && caster->env && caster->env->type == PLAYER)	109	if (caster->type == ROD && caster->env && caster->env->type == PLAYER)
201	{	110	{
202	object *skill = find_skill_by_number (caster->env, SK_USE_MAGIC_ITEM);	111	object *skill = find_skill_by_number (caster->env, SK_USE_MAGIC_ITEM);
203	int sk_level = skill ? skill->level : 1;	112	int sk_level = skill ? skill->level : 1;
204		113
205	level = MIN (level, sk_level + level / 10 + 1);	114	level = min (level, sk_level + level / 10 + 1);
206	}	115	}
		116	else if (caster->type == PLAYER) /* If this is a player, try to find the matching skill */
		117	if (object *skill = caster->contr->find_skill (spell->skill))
		118	level = skill->level;
207		119
208	/* Got valid caster level. Now adjust for attunement */	120	int bonus = attuned_bonus (caster, spell, level);
209	level += caster->path_repelled & spell->path_attuned ? -2 : 0;	121
210	level += caster->path_attuned & spell->path_attuned ? +2 : 0;	122	level += bonus;
		123
		124	// now scale the effective level from the startinglevel..100 range to 1..100
		125	if (level < 100)
		126	level = lerp (level, (int)spell->level, 100, 1, 100);
211		127
212	/* Always make this at least 1. If this is zero, we get divide by zero	128	/* Always make this at least 1. If this is zero, we get divide by zero
213	* errors in various places.	129	* errors in various places.
214	*/	130	*/
215	return max (level, 1);	131	return max (level, 1);
…		…
224	* caster is what is casting the spell, can be op.	140	* caster is what is casting the spell, can be op.
225	* spell is the spell object.	141	* spell is the spell object.
226	* Note that it is now possible for a spell to cost both grace and	142	* Note that it is now possible for a spell to cost both grace and
227	* mana. In that case, we return which ever value is higher.	143	* mana. In that case, we return which ever value is higher.
228	*/	144	*/
229
230	sint16	145	sint16
231	SP_level_spellpoint_cost (object caster, object spell, int flags)	146	SP_level_spellpoint_cost (object caster, object spell, int flags)
232	{	147	{
233	int sp, grace, level = caster_level (caster, spell);	148	int sp, grace, level = casting_level (caster, spell);
234		149
235	if (settings.spellpoint_level_depend == TRUE)	150	if (settings.spellpoint_level_depend == TRUE)
236	{	151	{
237	if (spell->stats.sp && spell->stats.maxsp)	152	if (spell->stats.sp && spell->stats.maxsp)
238	{	153	{
…		…
259	else	174	else
260	{	175	{
261	sp = (int) (spell->stats.sp * PATH_SP_MULT (caster, spell));	176	sp = (int) (spell->stats.sp * PATH_SP_MULT (caster, spell));
262	if (spell->stats.sp && !sp)	177	if (spell->stats.sp && !sp)
263	sp = 1;	178	sp = 1;
		179
264	grace = (int) (spell->stats.grace * PATH_SP_MULT (caster, spell));	180	grace = (int) (spell->stats.grace * PATH_SP_MULT (caster, spell));
265	if (spell->stats.grace && !grace)	181	if (spell->stats.grace && !grace)
266	grace = 1;	182	grace = 1;
267	}	183	}
		184
268	if (flags == SPELL_HIGHEST)	185	if (flags == SPELL_HIGHEST)
269	return MAX (sp, grace);	186	return MAX (sp, grace);
270	else if (flags == SPELL_GRACE)	187	else if (flags == SPELL_GRACE)
271	return grace;	188	return grace;
272	else if (flags == SPELL_MANA)	189	else if (flags == SPELL_MANA)
…		…
276	LOG (llevError, "SP_level_spellpoint_cost: Unknown flags passed: %d\n", flags);	193	LOG (llevError, "SP_level_spellpoint_cost: Unknown flags passed: %d\n", flags);
277	return 0;	194	return 0;
278	}	195	}
279	}	196	}
280		197
		198	/*
		199	* Return the effective casting level of the spell.
		200	* To make spells independent of their starting level, this function
		201	* scales the range spellstartlevel .. 100 into the range 1..100
		202	*/
		203	static int
		204	SP_casting_level (object caster, object spell)
		205	{
		206	return casting_level (caster, spell);
		207	}
281		208
282	/* SP_level_dam_adjust: Returns adjusted damage based on the caster.	209	/* SP_level_dam_adjust: Returns adjusted damage based on the caster.
283	* spob is the spell we are adjusting.	210	* spob is the spell we are adjusting.
284	*/	211	*/
285	int	212	int
286	SP_level_dam_adjust (object caster, object spob)	213	SP_level_dam_adjust (object caster, object spob)
287	{	214	{
288	int level = caster_level (caster, spob);
289	int adj = level - min_casting_level (caster, spob);
290
291	if (adj < 0)
292	adj = 0;
293	if (spob->dam_modifier)	215	if (!spob->dam_modifier)
294	adj /= spob->dam_modifier;
295	else
296	adj = 0;
297	return adj;	216	return 0;
		217
		218	return SP_casting_level (caster, spob) / spob->dam_modifier;
298	}	219	}
299		220
300	/* Adjust the strength of the spell based on level.	221	/* Adjust the strength of the spell based on level.
301	* This is basically the same as SP_level_dam_adjust above,	222	* This is basically the same as SP_level_dam_adjust above,
302	* but instead looks at the level_modifier value.	223	* but instead looks at the level_modifier value.
303	*/	224	*/
304	int	225	int
305	SP_level_duration_adjust (object caster, object spob)	226	SP_level_duration_adjust (object caster, object spob)
306	{	227	{
307	int level = caster_level (caster, spob);
308	int adj = level - min_casting_level (caster, spob);
309
310	if (adj < 0)
311	adj = 0;
312	if (spob->duration_modifier)	228	if (!spob->duration_modifier)
313	adj /= spob->duration_modifier;
314	else
315	adj = 0;
316
317	return adj;	229	return 0;
		230
		231	return SP_casting_level (caster, spob) / spob->duration_modifier;
318	}	232	}
319		233
320	/* Adjust the strength of the spell based on level.	234	/* Adjust the strength of the spell based on level.
321	* This is basically the same as SP_level_dam_adjust above,	235	* This is basically the same as SP_level_dam_adjust above,
322	* but instead looks at the level_modifier value.	236	* but instead looks at the level_modifier value.
323	*/	237	*/
324	int	238	int
325	SP_level_range_adjust (object caster, object spob)	239	SP_level_range_adjust (object caster, object spob)
326	{	240	{
327	int level = caster_level (caster, spob);
328	int adj = level - min_casting_level (caster, spob);
329
330	if (adj < 0)
331	adj = 0;
332	if (spob->range_modifier)	241	if (!spob->range_modifier)
333	adj /= spob->range_modifier;
334	else
335	adj = 0;
336
337	return adj;	242	return 0;
		243
		244	return SP_casting_level (caster, spob) / spob->range_modifier;
338	}	245	}
339		246
340	/* Checks to see if player knows the spell. If the name is the same	247	/* Checks to see if player knows the spell. If the name is the same
341	* as an existing spell, we presume they know it.	248	* as an existing spell, we presume they know it.
342	* returns 1 if they know the spell, 0 if they don't.	249	* returns 1 if they know the spell, 0 if they don't.
343	*/	250	*/
344	object *	251	object *
345	check_spell_known (object op, const char name)	252	check_spell_known (object op, const char name)
346	{	253	{
347	object *spop;	254	object *spop;
		255	shstr_cmp name_ (name);
348		256
349	for (spop = op->inv; spop; spop = spop->below)	257	for (spop = op->inv; spop; spop = spop->below)
350	if (spop->type == SPELL && !strcmp (spop->name, name))	258	if (spop->type == SPELL && spop->name == name)
351	return spop;	259	return spop;
352		260
353	return NULL;	261	return 0;
354	}	262	}
355
356		263
357	/*	264	/*
358	* Look at object 'op' and see if they know the spell	265	* Look at object 'op' and see if they know the spell
359	* spname. This is pretty close to check_spell_known	266	* spname. This is pretty close to check_spell_known
360	* above, but it uses a looser matching mechanism.	267	* above, but it uses a looser matching mechanism.
361	* returns the matching spell object, or NULL.	268	* returns the matching spell object, or NULL.
362	* If we match multiple spells but don't get an	269	* If we match multiple spells but don't get an
363	* exact match, we also return NULL.	270	* exact match, we also return NULL.
364	*/	271	*/
365
366	object *	272	object *
367	lookup_spell_by_name (object op, const char spname)	273	lookup_spell_by_name (object op, const char spname)
368	{	274	{
369	object spob1 = NULL, spob2 = NULL, *spob;	275	object spob1 = NULL, spob2 = NULL, *spob;
370	int nummatch = 0;	276	int nummatch = 0;
…		…
416	* eg, updated for tiled maps.	322	* eg, updated for tiled maps.
417	*/	323	*/
418	int	324	int
419	reflwall (maptile m, int x, int y, object sp_op)	325	reflwall (maptile m, int x, int y, object sp_op)
420	{	326	{
421	object *op;
422
423	if (OUT_OF_REAL_MAP (m, x, y))	327	if (OUT_OF_REAL_MAP (m, x, y))
424	return 0;	328	return 0;
		329
425	for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above)	330	for (object *op = GET_MAP_OB (m, x, y); op; op = op->above)
426	if (QUERY_FLAG (op, FLAG_REFL_SPELL)	331	if (QUERY_FLAG (op, FLAG_REFL_SPELL)
427	&& (!QUERY_FLAG (op, FLAG_ALIVE)	332	&& (!QUERY_FLAG (op, FLAG_ALIVE)
428	\|\| (rndm (0, 99)) < 90 - (sp_op->level / 10)))	333	\|\| (rndm (0, 99)) < 90 - (sp_op->level / 10)))
429	return 1;	334	return 1;
430		335
…		…
475	{	380	{
476	if (!xy_normalise (m, x, y))	381	if (!xy_normalise (m, x, y))
477	return 0;	382	return 0;
478		383
479	mapspace &ms = m->at (x, y);	384	mapspace &ms = m->at (x, y);
		385	ms.update ();
480		386
481	if (OB_TYPE_MOVE_BLOCK (op, ms.move_block))	387	if (OB_TYPE_MOVE_BLOCK (op, ms.move_block))
482	return 0;	388	return 0;
483		389
484	for (object *tmp = ms.bot; tmp; tmp = tmp->above)	390	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
…		…
520	/*	426	/*
521	* Combine similar spell effects into one spell effect. Needed for	427	* Combine similar spell effects into one spell effect. Needed for
522	* performance reasons with meteor swarm and the like, but also for	428	* performance reasons with meteor swarm and the like, but also for
523	* playability reasons.	429	* playability reasons.
524	*/	430	*/
525	if (tmp->arch == op->arch	431	if (tmp->arch == op->arch /* no harm if not comparing by name here */
526	&& tmp->type == op->type	432	&& tmp->type == op->type
527	&& tmp->subtype == op->subtype	433	&& tmp->subtype == op->subtype
528	&& tmp->owner == op->owner	434	&& tmp->owner == op->owner
529	&& ((tmp->subtype == SP_EXPLOSION) \|\| (tmp->subtype == SP_CONE && tmp->stats.sp == op->stats.sp)))	435	&& ((tmp->subtype == SP_EXPLOSION) \|\| (tmp->subtype == SP_CONE && tmp->stats.sp == op->stats.sp)))
530	{	436	{
…		…
551	* dir: direction to fire in.	457	* dir: direction to fire in.
552	* spell: spell that is being fired. It uses other_arch for the archetype	458	* spell: spell that is being fired. It uses other_arch for the archetype
553	* to fire.	459	* to fire.
554	* returns 0 on failure, 1 on success.	460	* returns 0 on failure, 1 on success.
555	*/	461	*/
556
557	int	462	int
558	fire_arch_from_position (object op, object caster, sint16 x, sint16 y, int dir, object *spell)	463	fire_arch_from_position (object op, object caster, sint16 x, sint16 y, int dir, object *spell)
559	{	464	{
560	object *tmp;
561	int mflags;
562	maptile *m;
563
564	if (spell->other_arch == NULL)	465	if (!spell->other_arch)
565	return 0;	466	return 0;
566		467
567	m = op->map;	468	object *tmp = spell->other_arch->instance ();
568	mflags = get_map_flags (m, &m, x, y, &x, &y);
569	if (mflags & P_OUT_OF_MAP)
570	{
571	return 0;
572	}
573		469
574	tmp = arch_to_object (spell->other_arch);	470	if (!tmp)
575
576	if (tmp == NULL)
577	return 0;	471	return 0;
578
579	if (OB_TYPE_MOVE_BLOCK (tmp, GET_MAP_MOVE_BLOCK (m, x, y)))
580	{
581	new_draw_info (NDI_UNIQUE, 0, op, "You can't cast the spell on top of a wall!\n");
582	tmp->destroy ();
583	return 0;
584	}
585		472
586	tmp->stats.dam = spell->stats.dam + SP_level_dam_adjust (caster, spell);	473	tmp->stats.dam = spell->stats.dam + SP_level_dam_adjust (caster, spell);
587	tmp->duration = spell->duration + SP_level_duration_adjust (caster, spell);	474	tmp->duration = spell->duration + SP_level_duration_adjust (caster, spell);
588	/* code in time.c uses food for some things, duration for others */	475	/* code in time.c uses food for some things, duration for others */
589	tmp->stats.food = tmp->duration;	476	tmp->stats.food = tmp->duration;
590	tmp->range = spell->range + SP_level_range_adjust (caster, spell);	477	tmp->range = spell->range + SP_level_range_adjust (caster, spell);
591	tmp->attacktype = spell->attacktype;	478	tmp->attacktype = spell->attacktype;
592	tmp->x = x;
593	tmp->y = y;
594	tmp->direction = dir;	479	tmp->direction = dir;
595	if (op->owner != NULL)
596	tmp->set_owner (op);	480	tmp->set_owner (op);
597	else
598	tmp->set_owner (op);
599	tmp->level = caster_level (caster, spell);	481	tmp->level = casting_level (caster, spell);
600	set_spell_skill (op, caster, spell, tmp);	482	set_spell_skill (op, caster, spell, tmp);
601		483
602	/* needed for AT_HOLYWORD,AT_GODPOWER stuff */	484	/* needed for AT_HOLYWORD,AT_GODPOWER stuff */
603	if (tmp->attacktype & AT_HOLYWORD \|\| tmp->attacktype & AT_GODPOWER)	485	if (tmp->attacktype & AT_HOLYWORD \|\| tmp->attacktype & AT_GODPOWER)
604	{
605	if (!tailor_god_spell (tmp, op))	486	if (!tailor_god_spell (tmp, op))
606	return 0;	487	return 0;
607	}	488
608	if (QUERY_FLAG (tmp, FLAG_IS_TURNABLE))	489	if (QUERY_FLAG (tmp, FLAG_IS_TURNABLE))
609	SET_ANIMATION (tmp, dir);	490	SET_ANIMATION (tmp, dir);
610		491
611	if ((tmp = insert_ob_in_map (tmp, m, op, 0)))	492	if ((tmp = op->map->insert (tmp, x, y, op)))
612	move_spell_effect (tmp);	493	move_spell_effect (tmp);
613		494
614	return 1;	495	return 1;
615	}	496	}
616		497
…		…
671	if (!tmp)	552	if (!tmp)
672	tmp = op->ms ().player ();	553	tmp = op->ms ().player ();
673		554
674	return tmp;	555	return tmp;
675	}	556	}
676
677
678		557
679	/* raytrace:	558	/* raytrace:
680	* spell_find_dir(map, x, y, exclude) will search first the center square	559	* spell_find_dir(map, x, y, exclude) will search first the center square
681	* then some close squares in the given map at the given coordinates for	560	* then some close squares in the given map at the given coordinates for
682	* live objects.	561	* live objects.
…		…
685	* monsters/generators only. If not, the spell will hunt players only.	564	* monsters/generators only. If not, the spell will hunt players only.
686	* It returns the direction toward the first/closest live object if it finds	565	* It returns the direction toward the first/closest live object if it finds
687	* any, otherwise -1.	566	* any, otherwise -1.
688	* note that exclude can be NULL, in which case all bets are off.	567	* note that exclude can be NULL, in which case all bets are off.
689	*/	568	*/
690
691	int	569	int
692	spell_find_dir (maptile m, int x, int y, object exclude)	570	spell_find_dir (maptile m, int x, int y, object exclude)
693	{	571	{
694	int i, max = SIZEOFFREE;	572	int i, max = SIZEOFFREE;
695	sint16 nx, ny;	573	sint16 nx, ny;
…		…
775	create_treasure (head->randomitems, head, GT_INVISIBLE, op->map->difficulty, 0);	653	create_treasure (head->randomitems, head, GT_INVISIBLE, op->map->difficulty, 0);
776		654
777	insert_ob_in_map (head, op->map, op, 0);	655	insert_ob_in_map (head, op->map, op, 0);
778		656
779	/* thought it'd be cool to insert a burnout, too. */	657	/* thought it'd be cool to insert a burnout, too. */
780	op->map->insert (get_archetype ("burnout"), op->x + freearr_x[dir], op->y + freearr_y[dir], op);	658	op->map->insert (archetype::get (shstr_burnout), op->x + freearr_x[dir], op->y + freearr_y[dir], op);
781	}	659	}
782	}	660	}
783		661
784	/* peterm: function which summons hostile monsters and	662	/* peterm: function which summons hostile monsters and
785	* places them in nearby squares.	663	* places them in nearby squares.
…		…
1040	*/	918	*/
1041	int	919	int
1042	cast_spell (object op, object caster, int dir, object spell_ob, char stringarg)	920	cast_spell (object op, object caster, int dir, object spell_ob, char stringarg)
1043	{	921	{
1044	const char *godname;	922	const char *godname;
1045	int success = 0, mflags, cast_level = 0;	923	int success = 0, cast_level = 0;
1046	object *skill = NULL;	924	object *skill = NULL;
1047		925
1048	if (!spell_ob)	926	if (!spell_ob)
1049	{	927	{
1050	LOG (llevError, "cast_spell: null spell object passed\n");	928	LOG (llevError, "cast_spell: null spell object passed\n");
…		…
1079	* need to have the right skill pointer passed, so we need to	957	* need to have the right skill pointer passed, so we need to
1080	* at least process that code.	958	* at least process that code.
1081	*/	959	*/
1082	if (op->type == PLAYER && op == caster)	960	if (op->type == PLAYER && op == caster)
1083	{	961	{
1084	cast_level = caster_level (caster, spell_ob);
1085
1086	if (spell_ob->skill)	962	if (spell_ob->skill)
1087	{	963	{
1088	skill = find_skill_by_name (op, spell_ob->skill);	964	skill = find_skill_by_name (op, spell_ob->skill);
1089		965
1090	if (!skill)	966	if (!skill)
1091	{	967	{
1092	new_draw_info_format (NDI_UNIQUE, 0, op, "You need the skill %s to cast %s.", &spell_ob->skill, &spell_ob->name);	968	op->failmsg (format ("You need the skill %s to cast %s! "
		969	"H<You either need to learn the skill via a skill scroll "
		970	"or you need to wear a talisman or holy symbol.>",
		971	&spell_ob->skill, &spell_ob->name));
1093	return 0;	972	return 0;
1094	}	973	}
1095		974
1096	if (min_casting_level (op, spell_ob) > cast_level && !QUERY_FLAG (op, FLAG_WIZ))	975	const char *msg = "";
		976
		977	int caster_level = skill->level;
		978
		979	if (op->path_attuned & spell_ob->path_attuned)
1097	{	980	{
1098	new_draw_info (NDI_UNIQUE, 0, op, "You lack enough skill to cast that spell.");	981	caster_level += min (cast_level * 2, ATTUNE_REPELL);
		982	msg = " (attuned)";
		983	}
		984
		985	if (op->path_repelled & spell_ob->path_attuned)
		986	{
		987	caster_level = ATTUNE_REPELL; // negative is ok
		988	msg = " (repelled)";
		989	}
		990
		991	if (spell_ob->level > caster_level)
		992	{
		993	op->failmsg (format ("You lack enough skill to cast that spell! "
		994	"H<Your effective cast level is %d%s, but level %d is required.>",
		995	caster_level, msg, spell_ob->level));
		996	if (!op->is_wiz ())
1099	return 0;	997	return 0;
1100	}	998	}
1101	}	999	}
1102		1000
1103	/* If the caster is the wiz, they don't ever fail, and don't have	1001	/* If the caster is the wiz, they don't ever fail, and don't have
1104	* to have sufficient grace/mana.	1002	* to have sufficient grace/mana.
…		…
1106	if (!QUERY_FLAG (op, FLAG_WIZ))	1004	if (!QUERY_FLAG (op, FLAG_WIZ))
1107	{	1005	{
1108	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&	1006	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&
1109	SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) > op->stats.sp)	1007	SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) > op->stats.sp)
1110	{	1008	{
1111	new_draw_info (NDI_UNIQUE, 0, op, "You don't have enough mana.");	1009	op->failmsg ("You don't have enough mana!");
1112	return 0;	1010	return 0;
1113	}	1011	}
1114		1012
1115	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) &&	1013	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) &&
1116	SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) > op->stats.grace)	1014	SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) > op->stats.grace)
1117	{	1015	{
1118	if (random_roll (0, op->stats.Wis - 1, op, PREFER_HIGH) + op->stats.grace -	1016	if (random_roll (0, op->stats.Wis - 1, op, PREFER_HIGH) + op->stats.grace -
1119	10 * SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) / op->stats.maxgrace > 0)	1017	10 * SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) / op->stats.maxgrace > 0)
1120	{
1121	new_draw_info_format (NDI_UNIQUE, 0, op, "%s grants your prayer, though you are unworthy.", godname);	1018	op->statusmsg (format ("%s grants your prayer, though you are unworthy.", godname));
1122	}
1123	else	1019	else
1124	{	1020	{
1125	prayer_failure (op, op->stats.grace, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) - op->stats.grace);	1021	prayer_failure (op, op->stats.grace, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) - op->stats.grace);
1126	new_draw_info_format (NDI_UNIQUE, 0, op, "%s ignores your prayer.", godname);	1022	op->failmsg (format ("%s ignores your prayer.", godname));
1127	return 0;	1023	return 0;
1128	}	1024	}
1129	}	1025	}
1130		1026
1131	/* player/monster is trying to cast the spell. might fumble it */	1027	/* player/monster is trying to cast the spell. might fumble it */
1132	if (spell_ob->stats.grace && random_roll (0, 99, op, PREFER_HIGH) <	1028	if (spell_ob->stats.grace && random_roll (0, 99, op, PREFER_HIGH) <
1133	(spell_ob->level / (float) MAX (1, op->level) * cleric_chance[op->stats.Wis]))	1029	(spell_ob->level / (float) MAX (1, op->level) * cleric_chance[op->stats.Wis]))
1134	{	1030	{
1135	op->contr->play_sound (sound_find ("fumble_spell"));	1031	op->contr->play_sound (sound_find ("fumble_spell"));
1136	new_draw_info (NDI_UNIQUE, 0, op, "You fumble the prayer.");	1032	op->failmsg ("You fumble the prayer.");
1137		1033
1138	op->stats.grace -= random_roll (1, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE), op, PREFER_LOW);	1034	op->stats.grace -= random_roll (1, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE), op, PREFER_LOW);
1139	return 0;	1035	return 0;
1140	}	1036	}
1141	else if (spell_ob->stats.sp)	1037	else if (spell_ob->stats.sp)
1142	{	1038	{
1143	int failure = random_roll (0, 199, op, PREFER_HIGH) - op->contr->encumbrance + op->level - spell_ob->level + 35;	1039	int failure = random_roll (0, 199, op, PREFER_HIGH) - op->contr->encumbrance + op->level - spell_ob->level + 35;
1144		1040
1145	if (failure < 0)	1041	if (failure < 0)
1146	{	1042	{
1147	new_draw_info (NDI_UNIQUE, 0, op, "You bungle the spell because you have too much heavy equipment in use.");	1043	op->failmsg ("You bungle the spell because you have too much heavy equipment in use.");
1148	if (settings.spell_failure_effects == TRUE)	1044	if (settings.spell_failure_effects == TRUE)
1149	spell_failure (op, failure, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), skill);	1045	spell_failure (op, failure, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), skill);
1150		1046
1151	op->stats.sp -= random_roll (0, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), op, PREFER_LOW);	1047	op->stats.sp -= random_roll (0, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), op, PREFER_LOW);
1152	return 0;	1048	return 0;
1153	}	1049	}
1154	}	1050	}
1155	}	1051	}
1156	}	1052	}
1157		1053
1158	mflags = get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL);	1054	int mflags = op->ms ().flags ();
1159		1055
1160	/* See if we can cast a spell here. If the caster and op are	1056	/* See if we can cast a spell here. If the caster and op are
1161	* not alive, then this would mean that the mapmaker put the	1057	* not alive, then this would mean that the mapmaker put the
1162	* objects on the space - presume that they know what they are	1058	* objects on the space - presume that they know what they are
1163	* doing.	1059	* doing.
…		…
1182	if ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)	1078	if ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)
1183	op->failmsg (format ("This ground is unholy! %s ignores you.", godname));	1079	op->failmsg (format ("This ground is unholy! %s ignores you.", godname));
1184	else if (object *item = op->contr->ranged_ob)	1080	else if (object *item = op->contr->ranged_ob)
1185	{	1081	{
1186	if (item->type == SPELL)	1082	if (item->type == SPELL)
1187	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks your spellcasting.");	1083	op->failmsg ("Something blocks your spellcasting.");
1188	else if (item->type == SCROLL)	1084	else if (item->type == SCROLL)
1189	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks the magic of your scroll.");	1085	op->failmsg ("Something blocks the magic of your scroll.");
1190	else	1086	else
1191	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks the magic of your item.");	1087	op->failmsg ("Something blocks the magic of your item.");
1192	}	1088	}
1193	else	1089	else
1194	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks the spell!");	1090	op->failmsg ("Something blocks the spell!");
1195		1091
1196	return 0;	1092	return 0;
1197	}	1093	}
1198		1094
1199	/* Take into account how long it takes to cast the spell.	1095	/* Take into account how long it takes to cast the spell.
…		…
1229	if (op != caster && !skill && caster->skill)	1125	if (op != caster && !skill && caster->skill)
1230	{	1126	{
1231	skill = find_skill_by_name (op, caster->skill);	1127	skill = find_skill_by_name (op, caster->skill);
1232	if (!skill)	1128	if (!skill)
1233	{	1129	{
1234	new_draw_info_format (NDI_UNIQUE, 0, op, "You lack the skill %s to use the %s", &caster->skill, query_name (caster));	1130	op->failmsg (format ("You lack the skill %s to use the %s!", &caster->skill, query_name (caster)));
1235	return 0;	1131	return 0;
1236	}	1132	}
1237		1133
1238	op->change_skill (skill); /* needed for proper exp credit */	1134	op->change_skill (skill); /* needed for proper exp credit */
1239	}	1135	}
…		…
1281	case SP_SMITE:	1177	case SP_SMITE:
1282	success = cast_smite_spell (op, caster, dir, spell_ob);	1178	success = cast_smite_spell (op, caster, dir, spell_ob);
1283	break;	1179	break;
1284		1180
1285	case SP_MAGIC_MISSILE:	1181	case SP_MAGIC_MISSILE:
1286	success = fire_arch_from_position (op, caster, op->x + freearr_x[dir], op->y + freearr_y[dir], dir, spell_ob);	1182	success = fire_arch_from_position (op, caster, op->x, op->y, dir, spell_ob);
1287	break;	1183	break;
1288		1184
1289	case SP_SUMMON_GOLEM:	1185	case SP_SUMMON_GOLEM:
1290	success = summon_golem (op, caster, dir, spell_ob);	1186	success = summon_golem (op, caster, dir, spell_ob);
1291	break;	1187	break;
…		…
1368	#ifdef NO_POLYMORPH	1264	#ifdef NO_POLYMORPH
1369	/* Not great, but at least provide feedback so if players do have	1265	/* Not great, but at least provide feedback so if players do have
1370	* polymorph (ie, find it as a preset item or left over from before	1266	* polymorph (ie, find it as a preset item or left over from before
1371	* it was disabled), they get some feedback.	1267	* it was disabled), they get some feedback.
1372	*/	1268	*/
1373	new_draw_info (NDI_UNIQUE, 0, op, "The spell fizzles");	1269	op->failmsg ("The spell fizzles!");
1374	success = 0;	1270	success = 0;
1375	#else	1271	#else
1376	success = cast_polymorph (op, caster, spell_ob, dir);	1272	success = cast_polymorph (op, caster, spell_ob, dir);
1377	#endif	1273	#endif
1378	break;	1274	break;
…		…
1398	break;	1294	break;
1399		1295
1400	case SP_MOVING_BALL:	1296	case SP_MOVING_BALL:
1401	if (spell_ob->path_repelled && (spell_ob->path_repelled & caster->path_attuned) != spell_ob->path_repelled)	1297	if (spell_ob->path_repelled && (spell_ob->path_repelled & caster->path_attuned) != spell_ob->path_repelled)
1402	{	1298	{
1403	new_draw_info_format (NDI_UNIQUE, 0, op, "You lack the proper attunement to cast %s", &spell_ob->name);	1299	op->failmsg (format ("You lack the proper attunement to cast %s!", &spell_ob->name));
1404	success = 0;	1300	success = 0;
1405	}	1301	}
1406	else	1302	else
1407	success = fire_arch_from_position (op, caster, op->x + freearr_x[dir], op->y + freearr_y[dir], dir, spell_ob);	1303	success = fire_arch_from_position (op, caster, op->x, op->y, dir, spell_ob);
1408	break;	1304	break;
1409		1305
1410	case SP_SWARM:	1306	case SP_SWARM:
1411	success = fire_swarm (op, caster, spell_ob, dir);	1307	success = fire_swarm (op, caster, spell_ob, dir);
1412	break;	1308	break;
…		…
1458		1354
1459	default:	1355	default:
1460	LOG (llevError, "cast_spell: Unhandled spell subtype %d\n", spell_ob->subtype);	1356	LOG (llevError, "cast_spell: Unhandled spell subtype %d\n", spell_ob->subtype);
1461	}	1357	}
1462		1358
1463	op->play_sound (success ? spell_ob->sound : sound_find ("fumble_spell"));	1359	op->play_sound (
		1360	success
		1361	? spell_ob->sound
		1362	? spell_ob->sound
		1363	: sound_find ("spell_success")
		1364	: sound_find ("fumble_spell")
		1365	);
1464		1366
1465	return success;	1367	return success;
1466	}	1368	}
1467		1369
1468
1469	/* This is called from time.c/process_object(). That function	1370	/* This is called from time.c/process_object(). That function
1470	* calls this for any SPELL_EFFECT type objects. This function	1371	* calls this for any SPELL_EFFECT type objects. This function
1471	* then dispatches them to the appropriate specific routines.	1372	* then dispatches them to the appropriate specific routines.
1472	*/	1373	*/
1473	void	1374	void
1474	move_spell_effect (object *op)	1375	move_spell_effect (object *op)
1475	{	1376	{
…		…
1533	check_bullet (op);	1434	check_bullet (op);
1534	return;	1435	return;
1535	}	1436	}
1536	}	1437	}
1537		1438
1538	/* This is called by move_apply. Basically, if someone	1439	/* This is called by move_apply. Basically, if someone
1539	* moves onto a spell effect and the walk_on or fly_on flags	1440	* moves onto a spell effect and the walk_on or fly_on flags
1540	* are set, this is called. This should only be called for	1441	* are set, this is called. This should only be called for
1541	* objects of the appropraite type.	1442	* objects of the appropriate type.
1542	*/	1443	*/
1543	void	1444	void
1544	apply_spell_effect (object spell, object victim)	1445	apply_spell_effect (object spell, object victim)
1545	{	1446	{
1546	switch (spell->subtype)	1447	switch (spell->subtype)
…		…
1552		1453
1553	case SP_MAGIC_MISSILE:	1454	case SP_MAGIC_MISSILE:
1554	if (QUERY_FLAG (victim, FLAG_ALIVE))	1455	if (QUERY_FLAG (victim, FLAG_ALIVE))
1555	{	1456	{
1556	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);	1457	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);
1557
1558	if (!spell->destroyed ())
1559	spell->destroy ();	1458	spell->destroy ();
1560	}	1459	}
1561	break;	1460	break;
1562		1461
1563	case SP_MOVING_BALL:	1462	case SP_MOVING_BALL:
1564	if (QUERY_FLAG (victim, FLAG_ALIVE))	1463	if (QUERY_FLAG (victim, FLAG_ALIVE))
1565	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);	1464	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);
1566	else if (victim->materialname)	1465	else if (victim->materialname)
1567	save_throw_object (victim, spell->attacktype, spell);	1466	save_throw_object (victim, spell->attacktype, spell);
		1467
1568	break;	1468	break;
1569	}	1469	}
1570	}	1470	}
		1471

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Comparing deliantra/server/server/spell_util.C (file contents): Revision 1.59 by root, Mon Aug 27 05:10:51 2007 UTC vs. Revision 1.83 by root, Mon Sep 29 11:52:34 2008 UTC

Diff Legend

Comparing deliantra/server/server/spell_util.C (file contents):
Revision 1.59 by root, Mon Aug 27 05:10:51 2007 UTC vs.
Revision 1.83 by root, Mon Sep 29 11:52:34 2008 UTC