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Comparing deliantra/server/server/spell_util.C (file contents):
Revision 1.42 by root, Mon Apr 30 04:25:30 2007 UTC vs.
Revision 1.132 by root, Sun Nov 18 15:19:48 2018 UTC

1	/*	1	/*
2	* CrossFire, A Multiplayer game	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	*	3	*
4	* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team	4	* Copyright (©) 2017,2018 Marc Alexander Lehmann / the Deliantra team
		5	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	* Copyright (C) 2001 Mark Wedel & Crossfire Development Team	6	* Copyright (©) 2001 Mark Wedel & Crossfire Development Team
6	* Copyright (C) 1992 Frank Tore Johansen	7	* Copyright (©) 1992 Frank Tore Johansen
7	*	8	*
8	* This program is free software; you can redistribute it and/or modify	9	* Deliantra is free software: you can redistribute it and/or modify it under
9	* it under the terms of the GNU General Public License as published by	10	* the terms of the Affero GNU General Public License as published by the
10	* the Free Software Foundation; either version 2 of the License, or	11	* Free Software Foundation, either version 3 of the License, or (at your
11	* (at your option) any later version.	12	* option) any later version.
12	*	13	*
13	* This program is distributed in the hope that it will be useful,	14	* This program is distributed in the hope that it will be useful,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License for more details.	17	* GNU General Public License for more details.
17	*
18	* You should have received a copy of the GNU General Public License
19	* along with this program; if not, write to the Free Software
20	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21	*	18	*
		19	* You should have received a copy of the Affero GNU General Public License
		20	* and the GNU General Public License along with this program. If not, see
		21	* <http://www.gnu.org/licenses/>.
		22	*
22	* The authors can be reached via e-mail at <crossfire@schmorp.de>	23	* The authors can be reached via e-mail to <support@deliantra.net>
23	*/	24	*/
24		25
25	#include <global.h>	26	#include <global.h>
26	#include <spells.h>	27	#include <spells.h>
27	#include <object.h>	28	#include <object.h>
…		…
34	/* This returns a random spell from 'ob'. If skill is set, then	35	/* This returns a random spell from 'ob'. If skill is set, then
35	* the spell must be of this skill, it can be NULL in which case all	36	* the spell must be of this skill, it can be NULL in which case all
36	* matching spells are used.	37	* matching spells are used.
37	*/	38	*/
38	object *	39	object *
39	find_random_spell_in_ob (object *ob, const char *skill)	40	find_random_spell_in_ob (object *ob, shstr_cmp skill)
40	{	41	{
41	int k = 0, s;	42	int k = 0, s;
42	object *tmp;
43		43
44	for (tmp = ob->inv; tmp; tmp = tmp->below)	44	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
45	if (tmp->type == SPELL && (!skill || tmp->skill == skill))	45	if (tmp->type == SPELL && (!skill || tmp->skill == skill))
46	k++;	46	k++;
47		47
48	/* No spells, no need to progess further */	48	/* No spells, no need to progess further */
49	if (!k)	49	if (!k)
50	return NULL;	50	return NULL;
51		51
52	s = RANDOM () % k;	52	s = rndm (k);
53		53
54	for (tmp = ob->inv; tmp; tmp = tmp->below)	54	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
55	if (tmp->type == SPELL && (!skill || tmp->skill == skill))	55	if (tmp->type == SPELL && (!skill || tmp->skill == skill))
56	{
57	if (!s)	56	if (!s)
58	return tmp;	57	return tmp;
59	else	58	else
60	s--;	59	s--;
61	}	60
62	/* Should never get here, but just in case */	61	/* Should never get here, but just in case */
63	return NULL;	62	return 0;
64	}	63	}
65		64
66	/* Relatively simple function that gets used a lot.	65	/* Relatively simple function that gets used a lot.
67	* Basically, it sets up the skill pointer for the spell being	66	* Basically, it sets up the skill pointer for the spell being
68	* cast. If op is really casting the spell, then the skill	67	* cast. If op is really casting the spell, then the skill
…		…
78	dest->skill = spob->skill;	77	dest->skill = spob->skill;
79	else	78	else
80	dest->skill = caster->skill;	79	dest->skill = caster->skill;
81	}	80	}
82		81
83	/* init_spells: This should really be called check_spells, as that
84	* is what it does. It goes through the spells looking for any
85	* obvious errors. This was most useful in debugging when re-doing
86	* all the spells to catch simple errors. To use it all the time
87	* will result in it spitting out messages that aren't really errors.
88	*/
89	void
90	init_spells (void)
91	{
92	#ifdef SPELL_DEBUG
93	static int init_spells_done = 0;
94	int i;
95	archetype *at;
96
97	if (init_spells_done)
98	return;
99	LOG (llevDebug, "Checking spells...\n");
100
101	for (at = first_archetype; at; at = at->next)
102	{
103	if (at->clone.type == SPELL)
104	{
105	if (at->clone.skill)
106	{
107	for (i = 1; i < NUM_SKILLS; i++)
108	if (!strcmp (skill_names[i], at->clone.skill))
109	break;
110	if (i == NUM_SKILLS)
111	{
112	LOG (llevError, "Spell %s has improper associated skill %s\n", at->name, at->clone.skill);
113	}
114	}
115	/* other_arch is already checked for in the loader */
116	}
117	}
118
119	i = 0;
120	while (spell_mapping[i])
121	{
122	if (!archetype::find (spell_mapping[i]))
123	{
124	LOG (llevError, "Unable to find spell mapping %s (%i)\n", spell_mapping[i], i);
125	}
126	i++;
127	}
128	LOG (llevDebug, "Checking spells completed.\n");
129	#endif
130	}
131
132	/* Dumps all the spells - now also dumps skill associated with the spell.
133	* not sure what this would be used for, as the data seems pretty
134	* minimal, but easy enough to keep around.
135	*/
136	void
137	dump_spells (void)
138	{
139	archetype *at;
140
141	for (at = first_archetype; at; at = at->next)
142	{
143	if (at->clone.type == SPELL)
144	{
145	fprintf (stderr, "%s:%s:%s:%s:%d\n", &at->clone.name,
146	&at->name, at->clone.other_arch ? &at->clone.other_arch->name : "<nil>", &at->clone.skill, at->clone.level);
147	}
148	}
149	}
150
151	/* pretty basic function - basically just takes	82	/* pretty basic function - basically just takes
152	* an object, sets the x,y, and calls insert_ob_in_map	83	* an object, sets the x,y, and calls insert_ob_in_map
153	*/	84	*/
154	void	85	void
155	spell_effect (object *spob, int x, int y, maptile *map, object *originator)	86	spell_effect (object *spob, int x, int y, maptile *map, object *originator)
156	{	87	{
157	if (spob->other_arch)	88	if (spob->other_arch)
158	map->insert (arch_to_object (spob->other_arch), x, y, originator);	89	map->insert (spob->other_arch->instance (), x, y, originator);
159	}	90	}
160		91
161	/*	92	static int
162	* This function takes a caster and spell and presents the	93	attuned_bonus (object *caster, object *spell, int level)
163	* effective level the caster needs to be to cast the spell.
164	* basically, it just adjusts the spell->level with attuned/repelled
165	* spellpaths. Was called path_level_mod.
166	*
167	* caster is person casting the spell.
168	* spell is the spell object.
169	* Returns modified level.
170	*/
171	int
172	min_casting_level (object *caster, object *spell)
173	{	94	{
174	int new_level;	95	// compute the attuned/repelled bonus
175		96	// attuned only increases up to 2 times the original level (i.e. bonus <= level) */
176	if (caster->path_denied & spell->path_attuned)	97	// repell has no such quarrels
177	return 1;	98	return (caster->path_attuned & spell->path_attuned ? min (level, +ATTUNE_REPELL) : 0)
178
179	new_level = spell->level
180	+ (caster->path_repelled & spell->path_attuned ? +2 : 0)	99	+ (caster->path_repelled & spell->path_attuned ? -ATTUNE_REPELL : 0);
181	+ (caster->path_attuned & spell->path_attuned ? -2 : 0);
182
183	return max (1, new_level);
184	}	100	}
185		101
186	/* This function returns the effective level the spell	102	/* This function returns the effective level the spell
187	* is being cast at.	103	* is being cast at.
188	* Note that I changed the repelled/attuned bonus to 2 from 5.
189	* This is because the new code compares casting_level against
190	* min_caster_level, so the difference is effectively 4
191	*/	104	*/
192	int	105	int
193	caster_level (object *caster, object *spell)	106	casting_level (object *caster, object *spell)
194	{	107	{
195	int level = caster->level;	108	int level = caster->level;
196
197	/* If this is a player, try to find the matching skill */
198	if (caster->type == PLAYER && spell->skill)
199	for (int i = 0; i < NUM_SKILLS; i++)
200	if (caster->contr->last_skill_ob[i] && caster->contr->last_skill_ob[i]->skill == spell->skill)
201	{
202	level = caster->contr->last_skill_ob[i]->level;
203	break;
204	}
205		109
206	/* if a rod is fired by a player, take the use_magic_item skill in consideration. */	110	/* if a rod is fired by a player, take the use_magic_item skill in consideration. */
207	if (caster->type == ROD && caster->env && caster->env->type == PLAYER)	111	if (caster->type == ROD && caster->env && caster->env->type == PLAYER)
208	{	112	{
209	object *skill = find_skill_by_number (caster->env, SK_USE_MAGIC_ITEM);	113	object *skill = find_skill_by_number (caster->env, SK_USE_MAGIC_ITEM);
210	int sk_level = skill ? skill->level : 1;	114	int sk_level = skill ? skill->level : 1;
211		115
212	level = MIN (level, sk_level + level / 10 + 1);	116	level = min (level, sk_level + level / 10 + 1);
213	}	117	}
		118	else if (caster->type == PLAYER) /* If this is a player, try to find the matching skill */
		119	if (object *skill = caster->contr->find_skill (spell->skill))
		120	level = skill->level;
214		121
215	/* Got valid caster level. Now adjust for attunement */	122	int bonus = attuned_bonus (caster, spell, level);
216	level += caster->path_repelled & spell->path_attuned ? -2 : 0;	123
217	level += caster->path_attuned & spell->path_attuned ? +2 : 0;	124	level += bonus;
		125
		126	// now scale the effective level from the startinglevel..100 range to 1..100
		127	if (level < 100)
		128	level = lerp (level, (int)spell->level, 100, 1, 100);
218		129
219	/* Always make this at least 1. If this is zero, we get divide by zero	130	/* Always make this at least 1. If this is zero, we get divide by zero
220	* errors in various places.	131	* errors in various places.
221	*/	132	*/
222	return max (level, 1);	133	return clamp (level, 1, settings.max_level);
223	}	134	}
224		135
225	/* The following function scales the spellpoint cost of	136	/* The following function scales the spellpoint cost of
226	* a spell by it's increased effectiveness. Some of the	137	* a spell by it's increased effectiveness. Some of the
227	* lower level spells become incredibly vicious at high	138	* lower level spells become incredibly vicious at high
…		…
231	* caster is what is casting the spell, can be op.	142	* caster is what is casting the spell, can be op.
232	* spell is the spell object.	143	* spell is the spell object.
233	* Note that it is now possible for a spell to cost both grace and	144	* Note that it is now possible for a spell to cost both grace and
234	* mana. In that case, we return which ever value is higher.	145	* mana. In that case, we return which ever value is higher.
235	*/	146	*/
236
237	sint16	147	sint16
238	SP_level_spellpoint_cost (object *caster, object *spell, int flags)	148	SP_level_spellpoint_cost (object *caster, object *spell, int flags)
239	{	149	{
240	int sp, grace, level = caster_level (caster, spell);	150	int sp, grace, level = casting_level (caster, spell);
241		151
242	if (settings.spellpoint_level_depend == TRUE)	152	if (settings.spellpoint_level_depend == TRUE)
243	{	153	{
244	if (spell->stats.sp && spell->stats.maxsp)	154	if (spell->stats.sp && spell->stats.maxsp)
245	{
246	sp = (int) (spell->stats.sp * (1.0 + MAX (0, (float) (level - spell->level) / (float) spell->stats.maxsp)));	155	sp = spell->stats.sp * (1.f + max (0.f, float (level - spell->level) / spell->stats.maxsp));
247	}
248	else	156	else
249	sp = spell->stats.sp;	157	sp = spell->stats.sp;
250		158
251	sp *= (int) PATH_SP_MULT (caster, spell);	159	sp *= (int) PATH_SP_MULT (caster, spell);
252	if (!sp && spell->stats.sp)	160	if (!sp && spell->stats.sp)
253	sp = 1;	161	sp = 1;
254		162
255	if (spell->stats.grace && spell->stats.maxgrace)	163	if (spell->stats.grace && spell->stats.maxgrace)
256	{
257	grace = (int) (spell->stats.grace * (1.0 + MAX (0, (float) (level - spell->level) / (float) spell->stats.maxgrace)));	164	grace = spell->stats.grace * (1.f + max (0.f, float (level - spell->level) / spell->stats.maxgrace));
258	}
259	else	165	else
260	grace = spell->stats.grace;	166	grace = spell->stats.grace;
261		167
262	grace *= (int) PATH_SP_MULT (caster, spell);	168	grace *= PATH_SP_MULT (caster, spell);
263	if (spell->stats.grace && !grace)	169	if (spell->stats.grace && !grace)
264	grace = 1;	170	grace = 1;
265	}	171	}
266	else	172	else
267	{	173	{
268	sp = (int) (spell->stats.sp * PATH_SP_MULT (caster, spell));	174	sp = (int) (spell->stats.sp * PATH_SP_MULT (caster, spell));
269	if (spell->stats.sp && !sp)	175	if (spell->stats.sp && !sp)
270	sp = 1;	176	sp = 1;
		177
271	grace = (int) (spell->stats.grace * PATH_SP_MULT (caster, spell));	178	grace = (int) (spell->stats.grace * PATH_SP_MULT (caster, spell));
272	if (spell->stats.grace && !grace)	179	if (spell->stats.grace && !grace)
273	grace = 1;	180	grace = 1;
274	}	181	}
		182
275	if (flags == SPELL_HIGHEST)	183	if (flags == SPELL_HIGHEST)
276	return MAX (sp, grace);	184	return max (sp, grace);
277	else if (flags == SPELL_GRACE)	185	else if (flags == SPELL_GRACE)
278	return grace;	186	return grace;
279	else if (flags == SPELL_MANA)	187	else if (flags == SPELL_MANA)
280	return sp;	188	return sp;
281	else	189	else
…		…
283	LOG (llevError, "SP_level_spellpoint_cost: Unknown flags passed: %d\n", flags);	191	LOG (llevError, "SP_level_spellpoint_cost: Unknown flags passed: %d\n", flags);
284	return 0;	192	return 0;
285	}	193	}
286	}	194	}
287		195
		196	/*
		197	* Return the effective casting level of the spell.
		198	* To make spells independent of their starting level, this function
		199	* scales the range spellstartlevel .. 100 into the range 1..100
		200	*/
		201	static int
		202	SP_casting_level (object *caster, object *spell)
		203	{
		204	return casting_level (caster, spell);
		205	}
288		206
289	/* SP_level_dam_adjust: Returns adjusted damage based on the caster.	207	/* SP_level_dam_adjust: Returns adjusted damage based on the caster.
290	* spob is the spell we are adjusting.	208	* spob is the spell we are adjusting.
291	*/	209	*/
292	int	210	int
293	SP_level_dam_adjust (object *caster, object *spob)	211	SP_level_dam_adjust (object *caster, object *spob)
294	{	212	{
295	int level = caster_level (caster, spob);
296	int adj = level - min_casting_level (caster, spob);
297
298	if (adj < 0)
299	adj = 0;
300	if (spob->dam_modifier)	213	if (!spob->dam_modifier)
301	adj /= spob->dam_modifier;
302	else
303	adj = 0;
304	return adj;	214	return 0;
		215
		216	return SP_casting_level (caster, spob) / spob->dam_modifier;
305	}	217	}
306		218
307	/* Adjust the strength of the spell based on level.	219	/* Adjust the strength of the spell based on level.
308	* This is basically the same as SP_level_dam_adjust above,	220	* This is basically the same as SP_level_dam_adjust above,
309	* but instead looks at the level_modifier value.	221	* but instead looks at the level_modifier value.
310	*/	222	*/
311	int	223	int
312	SP_level_duration_adjust (object *caster, object *spob)	224	SP_level_duration_adjust (object *caster, object *spob)
313	{	225	{
314	int level = caster_level (caster, spob);
315	int adj = level - min_casting_level (caster, spob);
316
317	if (adj < 0)
318	adj = 0;
319	if (spob->duration_modifier)	226	if (!spob->duration_modifier)
320	adj /= spob->duration_modifier;
321	else
322	adj = 0;
323
324	return adj;	227	return 0;
		228
		229	return SP_casting_level (caster, spob) / spob->duration_modifier;
325	}	230	}
326		231
327	/* Adjust the strength of the spell based on level.	232	/* Adjust the strength of the spell based on level.
328	* This is basically the same as SP_level_dam_adjust above,	233	* This is basically the same as SP_level_dam_adjust above,
329	* but instead looks at the level_modifier value.	234	* but instead looks at the level_modifier value.
330	*/	235	*/
331	int	236	int
332	SP_level_range_adjust (object *caster, object *spob)	237	SP_level_range_adjust (object *caster, object *spob)
333	{	238	{
334	int level = caster_level (caster, spob);
335	int adj = level - min_casting_level (caster, spob);
336
337	if (adj < 0)
338	adj = 0;
339	if (spob->range_modifier)	239	if (!spob->range_modifier)
340	adj /= spob->range_modifier;
341	else
342	adj = 0;
343
344	return adj;	240	return 0;
		241
		242	return SP_casting_level (caster, spob) / spob->range_modifier;
345	}	243	}
346		244
347	/* Checks to see if player knows the spell. If the name is the same	245	/* Checks to see if player knows the spell. If the name is the same
348	* as an existing spell, we presume they know it.	246	* as an existing spell, we presume they know it.
349	* returns 1 if they know the spell, 0 if they don't.	247	* returns 1 if they know the spell, 0 if they don't.
350	*/	248	*/
351	object *	249	object *
352	check_spell_known (object *op, const char *name)	250	check_spell_known (object *op, shstr_cmp name)
353	{	251	{
354	object *spop;	252	object *spop;
355		253
356	for (spop = op->inv; spop; spop = spop->below)	254	for (spop = op->inv; spop; spop = spop->below)
357	if (spop->type == SPELL && !strcmp (spop->name, name))	255	if (spop->type == SPELL && spop->name == name)
358	return spop;	256	return spop;
359		257
360	return NULL;	258	return 0;
361	}	259	}
362		260
363		261	/*
364	/*
365	* Look at object 'op' and see if they know the spell	262	* Look at object 'op' and see if they know the spell
366	* spname. This is pretty close to check_spell_known	263	* spname. This is pretty close to check_spell_known
367	* above, but it uses a looser matching mechanism.	264	* above, but it uses a looser matching mechanism.
368	* returns the matching spell object, or NULL.	265	* returns the matching spell object, or NULL.
369	* If we match multiple spells but don't get an	266	* If we match multiple spells but don't get an
370	* exact match, we also return NULL.	267	* exact match, we also return NULL.
371	*/	268	*/
372
373	object *	269	object *
374	lookup_spell_by_name (object *op, const char *spname)	270	object::find_spell (const_utf8_string prefix) const
375	{	271	{
376	object *spob1 = NULL, *spob2 = NULL, *spob;	272	if (shstr_cmp name = prefix)
377	int nummatch = 0;	273	{
378		274	// case 1, match spell name exactly
379	if (spname == NULL)
380	return NULL;
381
382	/* Try to find the spell. We store the results in spob1
383	* and spob2 - spob1 is only taking the length of
384	* the past spname, spob2 uses the length of the spell name.
385	*/
386	for (spob = op->inv; spob; spob = spob->below)	275	for (object *spob = inv; spob; spob = spob->below)
		276	if (spob->name == name && spob->type == SPELL)
		277	return spob;
387	{	278	}
		279	else
		280	{
		281	// case 2, match prefix
		282	int len = strlen (prefix);
		283
		284	for (object *spob = inv; spob; spob = spob->below)
388	if (spob->type == SPELL)	285	if (spob->type == SPELL
389	{	286	&& spob->name.length () < len
390	if (!strncmp (spob->name, spname, strlen (spname)))	287	&& prefix [spob->name.length ()] <= ' '
391	{	288	&& !memcmp (prefix, spob->name, spob->name.length ()))
392	nummatch++;
393	spob1 = spob;
394	}
395	else if (!strncmp (spob->name, spname, strlen (spob->name)))
396	{
397	/* if spells have ambiguous names, it makes matching
398	* really difficult. (eg, fire and fireball would
399	* fall into this category). It shouldn't be hard to
400	* make sure spell names don't overlap in that fashion.
401	*/
402	if (spob2)
403	LOG (llevError, "Found multiple spells with overlapping base names: %s, %s\n", &spob2->name, &spob->name);
404	spob2 = spob;
405	}
406	}
407	}
408	/* if we have best match, return it. Otherwise, if we have one match
409	* on the loser match, return that, otehrwise null
410	*/
411	if (spob2)
412	return spob2;	289	return spob;
413	if (spob1 && nummatch == 1)	290	}
414	return spob1;	291
415	return NULL;	292	return 0;
416	}	293	}
417		294
418	/* reflwall - decides weither the (spell-)object sp_op will	295	/* reflwall - decides weither the (spell-)object sp_op will
419	* be reflected from the given mapsquare. Returns 1 if true.	296	* be reflected from the given mapsquare. Returns 1 if true.
420	* (Note that for living creatures there is a small chance that	297	* (Note that for living creatures there is a small chance that
…		…
423	* eg, updated for tiled maps.	300	* eg, updated for tiled maps.
424	*/	301	*/
425	int	302	int
426	reflwall (maptile *m, int x, int y, object *sp_op)	303	reflwall (maptile *m, int x, int y, object *sp_op)
427	{	304	{
428	object *op;
429
430	if (OUT_OF_REAL_MAP (m, x, y))	305	if (OUT_OF_REAL_MAP (m, x, y))
431	return 0;	306	return 0;
		307
432	for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above)	308	for (object *op = GET_MAP_OB (m, x, y); op; op = op->above)
433	if (QUERY_FLAG (op, FLAG_REFL_SPELL)	309	if (op->flag [FLAG_REFL_SPELL]
434	&& (!QUERY_FLAG (op, FLAG_ALIVE)	310	&& (!op->flag [FLAG_ALIVE]
435	|| (rndm (0, 99)) < 90 - (sp_op->level / 10)))	311	|| (rndm (0, 99)) < 90 - (sp_op->level / 10)))
436	return 1;	312	return 1;
437		313
438	return 0;	314	return 0;
439	}	315	}
440		316
441	/* cast_create_object: creates object new_op in direction dir	317	/* cast_create_object: creates object new_op in direction dir
442	* or if that is blocked, beneath the player (op).	318	* or if that is blocked, beneath the player (op).
443	* we pass 'caster', but don't use it for anything.	319	* we pass 'caster', but don't use it for anything.
444	* This is really just a simple wrapper function .	320	* This is really just a simple wrapper function .
445	* returns the direction that the object was actually placed	321	* returns true to indicate whether the operation was successful.
446	* in.	322	* destroys the object is unsuccessful.
447	*/	323	*/
448	int	324	bool
449	cast_create_obj (object *op, object *caster, object *new_op, int dir)	325	cast_create_obj (object *op, object *caster, object *new_op, int dir)
450	{	326	{
451	maptile *m;	327	mapxy pos (op);
452	sint16 sx, sy;	328	pos.move (dir);
453		329
454	if (dir &&	330	if (!pos.normalise ()
455	((get_map_flags (op->map, &m, op->x + freearr_x[dir], op->y + freearr_y[dir], &sx, &sy) & P_OUT_OF_MAP) ||	331	|| pos->blocks (op) // perversely enough, we check if the palyer can reach that space
456	OB_TYPE_MOVE_BLOCK (op, GET_MAP_MOVE_BLOCK (m, sx, sy))))	332	|| !new_op->can_drop_at (pos.m, pos.x, pos.y)
457	{	333	)
458	new_draw_info (NDI_UNIQUE, 0, op, "Something is in the way.");
459	new_draw_info (NDI_UNIQUE, 0, op, "You cast it at your feet.");
460	dir = 0;
461	}	334	{
		335	op->failmsg ("Your spell fizzles! H<Something is in the way.>");
		336	new_op->destroy ();
		337	return 0;
		338	}
462		339
463	op->map->insert (new_op,	340	new_op->set_flag (FLAG_IDENTIFIED);
464	op->x + freearr_x[dir], op->y + freearr_y[dir],
465	op,
466	dir ? 0 : INS_BELOW_ORIGINATOR);
467		341
		342	pos.insert (new_op, op, dir ? 0 : INS_BELOW_ORIGINATOR);
		343
468	return dir;	344	return 1;
		345	}
		346
		347	static bool
		348	mergable_owner (object *o1, object *o2)
		349	{
		350	if (o1 == o2)
		351	return 1;
		352
		353	if (!o1 || !o2)
		354	return 0;
		355
		356	if (o1->flag [FLAG_FRIENDLY] != o1->flag [FLAG_FRIENDLY])
		357	return 0;
		358
		359	if (o1->is_player () || o2->is_player ())
		360	return 0;
		361
		362	return 1;
469	}	363	}
470		364
471	/* Returns true if it is ok to put spell *op on the space/may provided.	365	/* Returns true if it is ok to put spell *op on the space/may provided.
472	* immune_stop is basically the attacktype of the spell (why	366	* immune_stop is basically the attacktype of the spell (why
473	* passed as a different value, not sure of). If immune_stop	367	* passed as a different value, not sure of). If immune_stop
474	* has the AT_MAGIC bit set, and there is a counterwall	368	* has the AT_MAGIC bit set, and there is a counterwall
475	* on the space, the object doesn't get placed. if immune stop	369	* on the space, the object doesn't get placed. if immune stop
476	* does not have AT_MAGIC, then counterwalls do not effect the spell.	370	* does not have AT_MAGIC, then counterwalls do not effect the spell.
477	*
478	*/	371	*/
479	int	372	int
480	ok_to_put_more (maptile *m, sint16 x, sint16 y, object *op, int immune_stop)	373	ok_to_put_more (maptile *m, sint16 x, sint16 y, object *op, int immune_stop)
481	{	374	{
482	if (!xy_normalise (m, x, y))	375	if (!xy_normalise (m, x, y))
483	return 0;	376	return 0;
484		377
485	mapspace &ms = m->at (x, y);	378	mapspace &ms = m->at (x, y);
		379	ms.update ();
486		380
487	if (OB_TYPE_MOVE_BLOCK (op, ms.move_block))	381	if (OB_TYPE_MOVE_BLOCK (op, ms.move_block))
488	return 0;	382	return 0;
489		383
		384	int max_effects = 5; // max. number of similar spells per mapspace
		385
490	for (object *tmp = ms.bot; tmp; tmp = tmp->above)	386	for (object *tmp = ms.top; tmp; tmp = tmp->below)
491	{	387	{
492	/* If there is a counterspell on the space, and this	388	/* If there is a counterspell on the space, and this
493	* object is using magic, don't progress. I believe we could	389	* object is using magic, don't progress. I believe we could
494	* leave this out and let in progress, and other areas of the code	390	* leave this out and let in progress, and other areas of the code
495	* will then remove it, but that would seem to to use more	391	* will then remove it, but that would seem to to use more
…		…
497	* on top of a counterwall spell (may hit the player before being	393	* on top of a counterwall spell (may hit the player before being
498	* removed.) On the other hand, it may be more dramatic for the	394	* removed.) On the other hand, it may be more dramatic for the
499	* spell to actually hit the counterwall and be sucked up.	395	* spell to actually hit the counterwall and be sucked up.
500	*/	396	*/
501	if ((tmp->attacktype & AT_COUNTERSPELL)	397	if ((tmp->attacktype & AT_COUNTERSPELL)
502	&& !QUERY_FLAG (tmp, FLAG_MONSTER)	398	&& !tmp->flag [FLAG_MONSTER]
503	&& (tmp->type != PLAYER)	399	&& (tmp->type != PLAYER)
504	&& (tmp->type != WEAPON)	400	&& (tmp->type != WEAPON)
505	&& (tmp->type != BOW)	401	&& (tmp->type != BOW)
506	&& (tmp->type != ARROW)	402	&& (tmp->type != ARROW)
507	&& (tmp->type != GOLEM)	403	&& (tmp->type != GOLEM)
508	&& !QUERY_FLAG (tmp, FLAG_IS_FLOOR) // XXX:	404	&& !tmp->flag [FLAG_IS_FLOOR] // XXX:
509	// we special case floor here because there	405	// we special case floor here because there
510	// are sometimes spell effect floors	406	// are sometimes spell effect floors
511	// which are used to inflict damage	407	// which are used to inflict damage
512	// (and those shouldn't go away from	408	// (and those shouldn't go away from
513	// sanctuary) see also: permanent lava	409	// sanctuary) see also: permanent lava
514	&& (immune_stop & AT_MAGIC))	410	&& (immune_stop & AT_MAGIC))
515	return 0;	411	return 0;
516		412
517	/* This is to prevent 'out of control' spells. Basically, this
518	* limits one spell effect per space per spell. This is definately
519	* needed for performance reasons, and just for playability I believe.
520	* there are no such things as multispaced spells right now, so
521	* we don't need to worry about the head.
522	*/
523	if ((tmp->stats.maxhp == op->stats.maxhp) && (tmp->type == op->type) && (tmp->subtype == op->subtype))
524	return 0;
525
526	/*
527	* Combine similar spell effects into one spell effect. Needed for
528	* performance reasons with meteor swarm and the like, but also for
529	* playability reasons.
530	*/
531	if (tmp->arch == op->arch
532	&& tmp->type == op->type	413	if (tmp->type == op->type)
533	&& tmp->subtype == op->subtype
534	&& tmp->owner == op->owner
535	&& ((tmp->subtype == SP_EXPLOSION) || (tmp->subtype == SP_CONE && tmp->stats.sp == op->stats.sp)))
536	{	414	{
537	tmp->stats.dam = MAX (tmp->stats.dam, op->stats.dam);	415	if (tmp->subtype == op->subtype
538	tmp->range = MAX (tmp->range, op->range);	416	&& tmp->arch == op->arch /* no harm if not comparing by name here */)
539	tmp->duration = MAX (tmp->duration, op->duration);	417	{
		418	/* This is to prevent 'out of control' spells. Basically, this
		419	* limits one spell effect per space per spell. This is definately
		420	* needed for performance reasons, and just for playability I believe.
		421	* there are no such things as multispaced spells right now, so
		422	* we don't need to worry about the head.
		423	*/
		424	if (tmp->stats.maxhp == op->stats.maxhp)
		425	return 0;
		426
		427	/*
		428	* Combine similar spell effects into one spell effect. Needed for
		429	* performance reasons with meteor swarm and the like, but also for
		430	* playability reasons.
		431	*/
		432	if (((tmp->subtype == SP_EXPLOSION) || (tmp->subtype == SP_CONE && tmp->stats.sp == op->stats.sp)))
		433	if (mergable_owner (tmp, op))
		434	{
		435	// if same owner, then combine, but reduce advantage of multiple spells
		436	max_it (tmp->stats.dam, op->stats.dam);
		437	max_it (tmp->range , op->range);
		438	max_it (tmp->duration , op->duration);
		439	return 0;
		440	}
		441	}
		442
		443	// if there are too many spell effects on this space,
		444	// then don't allow more of them, for performance reasons.
		445	if (tmp->type == SPELL_EFFECT
		446	&& !--max_effects)
540	return 0;	447	return 0;
541	}	448	}
542		449
543	/* Perhaps we should also put checks in for no magic and unholy	450	/* Perhaps we should also put checks in for no magic and unholy
544	* ground to prevent it from moving along?	451	* ground to prevent it from moving along?
545	*/	452	*/
…		…
557	* dir: direction to fire in.	464	* dir: direction to fire in.
558	* spell: spell that is being fired. It uses other_arch for the archetype	465	* spell: spell that is being fired. It uses other_arch for the archetype
559	* to fire.	466	* to fire.
560	* returns 0 on failure, 1 on success.	467	* returns 0 on failure, 1 on success.
561	*/	468	*/
562
563	int	469	int
564	fire_arch_from_position (object *op, object *caster, sint16 x, sint16 y, int dir, object *spell)	470	fire_arch_from_position (object *op, object *caster, sint16 x, sint16 y, int dir, object *spell)
565	{	471	{
566	object *tmp;
567	int mflags;
568	maptile *m;
569
570	if (spell->other_arch == NULL)	472	if (!spell->other_arch)
571	return 0;	473	return 0;
572		474
573	m = op->map;	475	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		476
580	tmp = arch_to_object (spell->other_arch);	477	if (!tmp)
581
582	if (tmp == NULL)
583	return 0;	478	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		479
592	tmp->stats.dam = spell->stats.dam + SP_level_dam_adjust (caster, spell);	480	tmp->stats.dam = spell->stats.dam + SP_level_dam_adjust (caster, spell);
593	tmp->duration = spell->duration + SP_level_duration_adjust (caster, spell);	481	tmp->duration = spell->duration + SP_level_duration_adjust (caster, spell);
594	/* code in time.c uses food for some things, duration for others */	482	/* code in time.c uses food for some things, duration for others */
595	tmp->stats.food = tmp->duration;	483	tmp->stats.food = tmp->duration;
596	tmp->range = spell->range + SP_level_range_adjust (caster, spell);	484	tmp->range = spell->range + SP_level_range_adjust (caster, spell);
597	tmp->attacktype = spell->attacktype;	485	tmp->attacktype = spell->attacktype;
598	tmp->x = x;
599	tmp->y = y;
600	tmp->direction = dir;	486	tmp->direction = dir;
601	if (op->owner != NULL)
602	tmp->set_owner (op);	487	tmp->set_owner (op);
603	else
604	tmp->set_owner (op);
605	tmp->level = caster_level (caster, spell);	488	tmp->level = casting_level (caster, spell);
606	set_spell_skill (op, caster, spell, tmp);	489	set_spell_skill (op, caster, spell, tmp);
607		490
608	/* needed for AT_HOLYWORD,AT_GODPOWER stuff */	491	/* needed for AT_HOLYWORD,AT_GODPOWER stuff */
609	if (tmp->attacktype & AT_HOLYWORD || tmp->attacktype & AT_GODPOWER)	492	if (tmp->attacktype & AT_HOLYWORD || tmp->attacktype & AT_GODPOWER)
610	{
611	if (!tailor_god_spell (tmp, op))	493	if (!tailor_god_spell (tmp, op))
612	return 0;	494	return 0;
613	}
614	if (QUERY_FLAG (tmp, FLAG_IS_TURNABLE))
615	SET_ANIMATION (tmp, dir);
616		495
617	if ((tmp = insert_ob_in_map (tmp, m, op, 0)))	496	if (tmp->flag [FLAG_IS_TURNABLE])
		497	tmp->set_anim_frame (dir);
		498
		499	if ((tmp = op->map->insert (tmp, x, y, op)))
618	move_spell_effect (tmp);	500	move_spell_effect (tmp);
619		501
620	return 1;	502	return 1;
621	}	503	}
622		504
…		…
627	****************************************************************************/	509	****************************************************************************/
628	void	510	void
629	regenerate_rod (object *rod)	511	regenerate_rod (object *rod)
630	{	512	{
631	if (rod->stats.hp < rod->stats.maxhp)	513	if (rod->stats.hp < rod->stats.maxhp)
632	{	514	rod->stats.hp = min (rod->stats.maxhp, rod->stats.hp + 1 + rod->stats.maxhp / 20);
633	rod->stats.hp += 1 + rod->stats.maxhp / 10;
634
635	if (rod->stats.hp > rod->stats.maxhp)
636	rod->stats.hp = rod->stats.maxhp;
637	}
638	}	515	}
639
640		516
641	void	517	void
642	drain_rod_charge (object *rod)	518	drain_rod_charge (object *rod)
643	{	519	{
644	rod->stats.hp -= SP_level_spellpoint_cost (rod, rod->inv, SPELL_HIGHEST);	520	rod->stats.hp -= SP_level_spellpoint_cost (rod, rod->inv, SPELL_HIGHEST);
…		…
663	{	539	{
664	tmp = op->owner;	540	tmp = op->owner;
665	/* If the owner does not exist, or is not a monster, than apply the spell	541	/* If the owner does not exist, or is not a monster, than apply the spell
666	* to the caster.	542	* to the caster.
667	*/	543	*/
668	if (!tmp || !QUERY_FLAG (tmp, FLAG_MONSTER))	544	if (!tmp || !tmp->flag [FLAG_MONSTER])
669	tmp = op;	545	tmp = op;
670	}	546	}
671	else	547	else
672	{	548	{
673	maptile *m = op->map;	549	maptile *m = op->map;
674	sint16 x = op->x + freearr_x[dir];	550	sint16 x = op->x + DIRX (dir);
675	sint16 y = op->y + freearr_y[dir];	551	sint16 y = op->y + DIRY (dir);
676		552
677	tmp = xy_normalise (m, x, y)	553	tmp = xy_normalise (m, x, y)
678	? m->at (x, y).player ()	554	? m->at (x, y).player ()
679	: 0;	555	: 0;
680	}	556	}
…		…
683	if (!tmp)	559	if (!tmp)
684	tmp = op->ms ().player ();	560	tmp = op->ms ().player ();
685		561
686	return tmp;	562	return tmp;
687	}	563	}
688
689
690		564
691	/* raytrace:	565	/* raytrace:
692	* spell_find_dir(map, x, y, exclude) will search first the center square	566	* spell_find_dir(map, x, y, exclude) will search first the center square
693	* then some close squares in the given map at the given coordinates for	567	* then some close squares in the given map at the given coordinates for
694	* live objects.	568	* live objects.
…		…
697	* monsters/generators only. If not, the spell will hunt players only.	571	* monsters/generators only. If not, the spell will hunt players only.
698	* It returns the direction toward the first/closest live object if it finds	572	* It returns the direction toward the first/closest live object if it finds
699	* any, otherwise -1.	573	* any, otherwise -1.
700	* note that exclude can be NULL, in which case all bets are off.	574	* note that exclude can be NULL, in which case all bets are off.
701	*/	575	*/
702
703	int	576	int
704	spell_find_dir (maptile *m, int x, int y, object *exclude)	577	spell_find_dir (maptile *m, int x, int y, object *exclude)
705	{	578	{
706	int i, max = SIZEOFFREE;	579	int i, max = SIZEOFFREE;
707	sint16 nx, ny;	580	sint16 nx, ny;
…		…
714	if (exclude && exclude->type)	587	if (exclude && exclude->type)
715	owner_type = exclude->type;	588	owner_type = exclude->type;
716		589
717	for (i = rndm (1, 8); i < max; i++)	590	for (i = rndm (1, 8); i < max; i++)
718	{	591	{
719	nx = x + freearr_x[i];	592	nx = x + DIRX (i);
720	ny = y + freearr_y[i];	593	ny = y + DIRY (i);
721	mp = m;	594	mp = m;
722	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	595	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
723	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))	596	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
724	continue;	597	continue;
725		598
726	tmp = GET_MAP_OB (mp, nx, ny);	599	tmp = GET_MAP_OB (mp, nx, ny);
727		600
728	while (tmp != NULL && (((owner_type == PLAYER &&	601	while (tmp != NULL && (((owner_type == PLAYER &&
729	!QUERY_FLAG (tmp, FLAG_MONSTER) && !QUERY_FLAG (tmp, FLAG_GENERATOR)) ||	602	!tmp->flag [FLAG_MONSTER] && !tmp->flag [FLAG_GENERATOR]) ||
730	(owner_type != PLAYER && tmp->type != PLAYER)) || (tmp == exclude || (tmp->head && tmp->head == exclude))))	603	(owner_type != PLAYER && tmp->type != PLAYER)) || (tmp == exclude || (tmp->head && tmp->head == exclude))))
731	tmp = tmp->above;	604	tmp = tmp->above;
732		605
733	if (tmp != NULL && can_see_monsterP (m, x, y, i))	606	if (tmp != NULL && can_see_monsterP (m, x, y, i))
734	return freedir[i];	607	return freedir[i];
…		…
738		611
739	/* put_a_monster: puts a monster named monstername near by	612	/* put_a_monster: puts a monster named monstername near by
740	* op. This creates the treasures for the monsters, and	613	* op. This creates the treasures for the monsters, and
741	* also deals with multipart monsters properly.	614	* also deals with multipart monsters properly.
742	*/	615	*/
743	void	616	static void
744	put_a_monster (object *op, const char *monstername)	617	put_a_monster (object *op, const char *monstername)
745	{	618	{
746	object *tmp, *head = NULL, *prev = NULL;	619	object *tmp, *head = NULL, *prev = NULL;
747	archetype *at;	620	archetype *at;
748	int dir;	621	int dir;
…		…
751		624
752	if ((at = archetype::find (monstername)) == NULL)	625	if ((at = archetype::find (monstername)) == NULL)
753	return;	626	return;
754		627
755	/* find a free square nearby	628	/* find a free square nearby
756	* first we check the closest square for free squares	629	* first we check the closest square for free squares
757	*/	630	*/
758		631
759	dir = find_first_free_spot (&at->clone, op->map, op->x, op->y);	632	dir = find_first_free_spot (at, op->map, op->x, op->y);
760	if (dir != -1)	633	if (dir != -1)
761	{	634	{
762	/* This is basically grabbed for generate monster. Fixed 971225 to	635	/* This is basically grabbed for generate monster. Fixed 971225 to
763	* insert multipart monsters properly	636	* insert multipart monsters properly
764	*/	637	*/
		638	//TODO: use expand_tail + ...
765	while (at != NULL)	639	while (at != NULL)
766	{	640	{
767	tmp = arch_to_object (at);	641	tmp = at->instance ();
768	tmp->x = op->x + freearr_x[dir] + at->clone.x;	642	tmp->x = op->x + DIRX (dir) + at->x;
769	tmp->y = op->y + freearr_y[dir] + at->clone.y;	643	tmp->y = op->y + DIRY (dir) + at->y;
770	tmp->map = op->map;	644	tmp->map = op->map;
771	if (head)	645	if (head)
772	{	646	{
773	tmp->head = head;	647	tmp->head = head;
774	prev->more = tmp;	648	prev->more = tmp;
775	}	649	}
		650
776	if (!head)	651	if (!head)
777	head = tmp;	652	head = tmp;
		653
778	prev = tmp;	654	prev = tmp;
		655
779	at = at->more;	656	at = (archetype *)at->more;
780	}	657	}
781		658
782	if (head->randomitems)	659	if (head->randomitems)
783	create_treasure (head->randomitems, head, GT_INVISIBLE, op->map->difficulty, 0);	660	create_treasure (head->randomitems, head, GT_INVISIBLE, op->map->difficulty, 0);
784		661
785	insert_ob_in_map (head, op->map, op, 0);	662	insert_ob_in_map (head, op->map, op, 0);
786		663
787	/* thought it'd be cool to insert a burnout, too. */	664	/* thought it'd be cool to insert a burnout, too. */
788	op->map->insert (get_archetype ("burnout"), op->x + freearr_x[dir], op->y + freearr_y[dir], op);	665	op->map->insert (archetype::get (shstr_burnout), op->x + DIRX (dir), op->y + DIRY (dir), op);
789	}	666	}
790	}	667	}
791		668
792	/* peterm: function which summons hostile monsters and	669	/* peterm: function which summons hostile monsters and
793	* places them in nearby squares.	670	* places them in nearby squares.
…		…
800	* Note that this is not used by any spells (summon evil monsters	677	* Note that this is not used by any spells (summon evil monsters
801	* use to call this, but best I can tell, that spell/ability was	678	* use to call this, but best I can tell, that spell/ability was
802	* never used. This is however used by various failures on the	679	* never used. This is however used by various failures on the
803	* players part (alchemy, reincarnation, etc)	680	* players part (alchemy, reincarnation, etc)
804	*/	681	*/
805
806	int	682	int
807	summon_hostile_monsters (object *op, int n, const char *monstername)	683	summon_hostile_monsters (object *op, int n, const char *monstername)
808	{	684	{
809	int i;	685	int i;
810		686
…		…
812	put_a_monster (op, monstername);	688	put_a_monster (op, monstername);
813		689
814	return n;	690	return n;
815	}	691	}
816		692
817
818	/* Some local definitions for shuffle-attack */	693	/* Some local definitions for shuffle-attack */
819	struct attacktype_shuffle	694	struct attacktype_shuffle
820	{	695	{
821	int attacktype;	696	int attacktype;
822	int face;	697	int face;
823	} ATTACKS[22] =	698	} ATTACKS[] =
824	{	699	{
825	{ AT_PHYSICAL, 0},	700	{ AT_PHYSICAL, 0},
826	{ AT_PHYSICAL, 0}, /*face = explosion */	701	{ AT_PHYSICAL, 0}, /* face = explosion */
827	{ AT_PHYSICAL, 0},	702	{ AT_PHYSICAL, 0},
828	{ AT_MAGIC, 1},	703	{ AT_MAGIC, 1},
829	{ AT_MAGIC, 1}, /* face = last-burnout */	704	{ AT_MAGIC, 1}, /* face = last-burnout */
830	{ AT_MAGIC, 1},	705	{ AT_MAGIC, 1},
831	{ AT_FIRE, 2},	706	{ AT_FIRE, 2},
…		…
845	{ AT_PARALYZE, 9},	720	{ AT_PARALYZE, 9},
846	{ AT_FEAR, 10},	721	{ AT_FEAR, 10},
847	};	722	};
848		723
849	/* shuffle_attack: peterm	724	/* shuffle_attack: peterm
850	* This routine shuffles the attack of op to one of the	725	* This routine shuffles the attack of op to one of the
851	* ones in the list. It does this at random. It also	726	* ones in the list. It does this at random. It also
852	* chooses a face appropriate to the attack that is	727	* chooses a face appropriate to the attack that is
853	* being committed by that square at the moment.	728	* being committed by that square at the moment.
854	* right now it's being used by color spray and create pool of	729	* right now it's being used by color spray and create pool of
855	* chaos.	730	* chaos.
856	* This could really be a better implementation - the	731	* This could really be a better implementation - the
857	* faces and attacktypes above are hardcoded, which is never	732	* faces and attacktypes above are hardcoded, which is never
858	* good. The faces refer to faces in the animation sequence.	733	* good. The faces refer to faces in the animation sequence.
…		…
863	* attacktypes, which probably wasn't the intent. MSW 2003-06-03	738	* attacktypes, which probably wasn't the intent. MSW 2003-06-03
864	*/	739	*/
865	void	740	void
866	shuffle_attack (object *op, int change_face)	741	shuffle_attack (object *op, int change_face)
867	{	742	{
868	int i;	743	int i = rndm (ecb_array_length (ATTACKS));
869
870	i = rndm (0, 21);
871		744
872	op->attacktype = ATTACKS[i].attacktype | AT_MAGIC;	745	op->attacktype = ATTACKS[i].attacktype | AT_MAGIC;
873		746
874	if (change_face)	747	if (change_face)
875	{	748	op->set_anim_frame (ATTACKS[i].face);
876	SET_ANIMATION (op, ATTACKS[i].face);
877	}
878	}	749	}
879
880		750
881	/* prayer_failure: This is called when a player fails	751	/* prayer_failure: This is called when a player fails
882	* at casting a prayer.	752	* at casting a prayer.
883	* op is the player.	753	* op is the player.
884	* failure is basically how much grace they had.	754	* failure is basically how much grace they had.
885	* power is how much grace the spell would normally take to cast.	755	* power is how much grace the spell would normally take to cast.
886	*/	756	*/
887		757
888	void	758	#define HINT_GRACE " H<Make sure you always have enough grace points for your prayers.>"
		759
		760	static void
889	prayer_failure (object *op, int failure, int power)	761	prayer_failure (object *op, int failure, int power)
890	{	762	{
891	const char *godname;	763	const char *godname;
892	object *tmp;	764	object *tmp;
893		765
894	if (!strcmp ((godname = determine_god (op)), "none"))	766	if (!strcmp ((godname = determine_god (op)), "none"))
895	godname = "Your spirit";	767	godname = "Your spirit";
896		768
897	if (failure <= -20 && failure > -40) /* wonder */	769	if (failure <= -20 && failure > -40) /* wonder */
898	{	770	{
899	new_draw_info_format (NDI_UNIQUE, 0, op, "%s gives a sign to renew your faith.", godname);	771	op->failmsgf ("%s gives a sign to renew your faith." HINT_GRACE, godname);
900	tmp = get_archetype (SPELL_WONDER);	772	tmp = archetype::get (SPELL_WONDER);
901	cast_cone (op, op, 0, tmp);	773	cast_cone (op, op, 0, tmp);
902	tmp->destroy ();	774	tmp->destroy ();
903	}	775	}
904		776
905	else if (failure <= -40 && failure > -60) /* confusion */	777	else if (failure <= -40 && failure > -60) /* confusion */
906	{	778	{
907	new_draw_info (NDI_UNIQUE, 0, op, "Your diety touches your mind!");	779	op->failmsg ("Your diety touches your mind!" HINT_GRACE);
908	confuse_player (op, op, 99);	780	confuse_player (op, op, 99);
909	}	781	}
910	else if (failure <= -60 && failure > -150) /* paralysis */	782	else if (failure <= -60 && failure > -150) /* paralysis */
911	{	783	{
912	new_draw_info_format (NDI_UNIQUE, 0, op, "%s requires you to pray NOW.", godname);	784	op->failmsgf ("%s requires you to pray NOW. "
913	new_draw_info (NDI_UNIQUE, 0, op, "You comply, ignoring all else.");	785	"You comply, ignoring all else." HINT_GRACE,
		786	godname);
914	paralyze_player (op, op, 99);	787	paralyze_player (op, op, 99);
915	}	788	}
916	else if (failure <= -150) /* blast the immediate area */	789	else if (failure <= -150) /* blast the immediate area */
917	{	790	{
918	tmp = get_archetype (GOD_POWER);	791	tmp = archetype::get (GOD_POWER);
919	new_draw_info_format (NDI_UNIQUE, 0, op, "%s smites you!", godname);	792	op->failmsgf ("%s smites you!" HINT_GRACE, godname);
920	cast_magic_storm (op, tmp, power);	793	cast_magic_storm (op, tmp, power);
921	}	794	}
922	}	795	}
923		796
924	/*	797	/*
925	* spell_failure() handles the various effects for differing degrees	798	* spell_failure() handles the various effects for differing degrees
926	* of failure badness.	799	* of failure badness.
927	* op is the player that failed.	800	* op is the player that failed.
928	* failure is a random value of how badly you failed.	801	* failure is a random value of how badly you failed.
929	* power is how many spellpoints you'd normally need for the spell.	802	* power is how many spellpoints you'd normally need for the spell.
930	* skill is the skill you'd need to cast the spell.	803	* skill is the skill you'd need to cast the spell.
931	*/	804	*/
932
933	void	805	void
934	spell_failure (object *op, int failure, int power, object *skill)	806	spell_failure (object *op, int failure, int power, object *skill)
935	{	807	{
936	object *tmp;	808	object *tmp;
937		809
938	if (settings.spell_failure_effects == FALSE)	810	if (settings.spell_failure_effects == FALSE)
939	return;	811	return;
940		812
941	if (failure <= -20 && failure > -40) /* wonder */	813	if (failure <= -20 && failure > -40) /* wonder */
942	{	814	{
943	new_draw_info (NDI_UNIQUE, 0, op, "Your spell causes an unexpected effect.");	815	op->failmsg ("Your spell causes an unexpected effect.");
944	tmp = get_archetype (SPELL_WONDER);	816	tmp = archetype::get (SPELL_WONDER);
945	cast_cone (op, op, 0, tmp);	817	cast_cone (op, op, 0, tmp);
946	tmp->destroy ();	818	tmp->destroy ();
947	}	819	}
948		820
949	else if (failure <= -40 && failure > -60) /* confusion */	821	else if (failure <= -40 && failure > -60) /* confusion */
950	{	822	{
951	new_draw_info (NDI_UNIQUE, 0, op, "Your magic recoils on you, making you confused!");	823	op->failmsg ("Your magic recoils on you, making you confused!");
952	confuse_player (op, op, 99);	824	confuse_player (op, op, 99);
953	}	825	}
954	else if (failure <= -60 && failure > -80) /* paralysis */	826	else if (failure <= -60 && failure > -80) /* paralysis */
955	{	827	{
956	new_draw_info (NDI_UNIQUE, 0, op, "Your magic stuns you!");	828	op->failmsg ("Your magic stuns you!");
957	paralyze_player (op, op, 99);	829	paralyze_player (op, op, 99);
958	}	830	}
959	else if (failure <= -80) /* blast the immediate area */	831	else if (failure <= -80) /* blast the immediate area */
960	{	832	{
961	object *tmp;	833	object *tmp;
962		834
963	/* Safety check to make sure we don't get any mana storms in scorn */	835	/* Safety check to make sure we don't get any mana storms in scorn */
964	if (get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_NO_MAGIC)	836	if (get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_NO_MAGIC)
965	{	837	{
966	new_draw_info (NDI_UNIQUE, 0, op, "The magic warps and you are turned inside out!");	838	op->failmsg ("The magic warps and you are turned inside out!");
967	hit_player (op, 9998, op, AT_INTERNAL, 1);	839	hit_player (op, 9998, op, AT_INTERNAL, 1);
968		840
969	}	841	}
970	else	842	else
971	{	843	{
972	new_draw_info (NDI_UNIQUE, 0, op, "You lose control of the mana! The uncontrolled magic blasts you!");	844	op->failmsg ("You lose control of the mana! The uncontrolled magic blasts you!");
973	tmp = get_archetype (LOOSE_MANA);	845	tmp = archetype::get (LOOSE_MANA);
974	tmp->level = skill->level;	846	tmp->level = skill->level;
975		847
976	/* increase the area of destruction a little for more powerful spells */	848	/* increase the area of destruction a little for more powerful spells */
977	tmp->range += isqrt (power);	849	tmp->range += isqrt (power);
978		850
…		…
986	tmp->insert_at (op);	858	tmp->insert_at (op);
987	}	859	}
988	}	860	}
989	}	861	}
990		862
991	int	863	static int
992	cast_party_spell (object *op, object *caster, int dir, object *spell_ob, char *stringarg)	864	cast_party_spell (object *op, object *caster, int dir, object *spell_ob, char *spellparam)
993	{	865	{
994	int success;
995	object *spell;
996
997	if (!spell_ob->other_arch)	866	if (!spell_ob->other_arch)
998	{	867	{
999	LOG (llevError, "cast_party_spell: empty other arch\n");	868	LOG (llevError, "cast_party_spell: empty other arch\n");
1000	return 0;	869	return 0;
1001	}	870	}
1002	spell = arch_to_object (spell_ob->other_arch);	871
		872	object *spell = spell_ob->other_arch->instance ();
1003		873
1004	/* Always cast spell on caster */	874	/* Always cast spell on caster */
1005	success = cast_spell (op, caster, dir, spell, stringarg);	875	int success = cast_spell (op, caster, dir, spell, spellparam);
1006		876
1007	if (caster->contr->party == NULL)	877	if (!op->contr || !op->contr->party)
1008	{	878	{
1009	spell->remove ();	879	spell->remove ();
1010	return success;	880	return success;
1011	}	881	}
		882
1012	for_all_players (pl)	883	for_all_players (pl)
1013	if ((pl->ob->contr->party == caster->contr->party) && (on_same_map (pl->ob, caster)))	884	if ((pl->ob->contr->party == op->contr->party)
1014	{	885	&& on_same_map (pl->ob, op)
		886	&& pl->ob != op)
1015	cast_spell (pl->ob, caster, pl->ob->facing, spell, stringarg);	887	cast_spell (pl->ob, caster, pl->ob->facing, spell, spellparam);
1016	}	888
1017	spell->remove ();	889	spell->remove ();
1018	return success;	890	return success;
1019	}	891	}
1020		892
1021	/* This is where the main dispatch when someone casts a spell.	893	/* This is where the main dispatch when someone casts a spell.
…		…
1026	* same as op.	898	* same as op.
1027	* dir is the direction to cast in. Note in some cases, if the spell	899	* dir is the direction to cast in. Note in some cases, if the spell
1028	* is self only, dir really doesn't make a difference.	900	* is self only, dir really doesn't make a difference.
1029	* spell_ob is the spell object that is being cast. From that,	901	* spell_ob is the spell object that is being cast. From that,
1030	* we can determine what to do.	902	* we can determine what to do.
1031	* stringarg is any options that are being used. It can be NULL. Almost	903	* spellparam is any options that are being used. It can be NULL. Almost
1032	* certainly, only players will set it. It is basically used as optional	904	* certainly, only players will set it. It is basically used as optional
1033	* parameters to a spell (eg, item to create, information for marking runes,	905	* parameters to a spell (eg, item to create, information for marking runes,
1034	* etc.	906	* etc.
1035	* returns 1 on successful cast, or 0 on error. These values should really	907	* returns 1 on successful cast, or 0 on error. These values should really
1036	* be swapped, so that 0 is successful, and non zero is failure, with a code	908	* be swapped, so that 0 is successful, and non zero is failure, with a code
…		…
1044	* if it is a player casting the spell (op->type == PLAYER, op == caster),	916	* if it is a player casting the spell (op->type == PLAYER, op == caster),
1045	* this function will decrease the mana/grace appropriately. For other	917	* this function will decrease the mana/grace appropriately. For other
1046	* objects, the caller should do what it considers appropriate.	918	* objects, the caller should do what it considers appropriate.
1047	*/	919	*/
1048	int	920	int
1049	cast_spell (object *op, object *caster, int dir, object *spell_ob, char *stringarg)	921	cast_spell (object *op, object *caster, int dir, object *spell_ob, char *spellparam)
1050	{	922	{
1051	const char *godname;	923	const char *godname;
1052	int success = 0, mflags, cast_level = 0;	924	int success = 0;
1053	object *skill = NULL;	925
		926	// make sure spells always take a while, so a) we don't flood the
		927	// user with messages and b) too many failures can be harmful (smiting).
		928	op->speed_left -= 4 * op->speed; // ~0.5s on failure
1054		929
1055	if (!spell_ob)	930	if (!spell_ob)
1056	{	931	{
1057	LOG (llevError, "cast_spell: null spell object passed\n");	932	LOG (llevError, "cast_spell: null spell object passed\n");
1058	return 0;	933	return 0;
…		…
1066	{	941	{
1067	LOG (llevError, "cast_spell: null caster object passed\n");	942	LOG (llevError, "cast_spell: null caster object passed\n");
1068	return 0;	943	return 0;
1069	}	944	}
1070		945
1071	/* if caster is a spell casting object, this normally shouldn't be	946	/* if caster is a spell casting object, this normally shouldn't be
1072	* an issue, because they don't have any spellpaths set up.	947	* an issue, because they don't have any spellpaths set up.
1073	*/	948	*/
1074	if (caster->path_denied & spell_ob->path_attuned && !QUERY_FLAG (caster, FLAG_WIZCAST))	949	if (caster->path_denied & spell_ob->path_attuned && !caster->flag [FLAG_WIZCAST])
1075	{	950	{
1076	new_draw_info (NDI_UNIQUE, 0, op, "That spell path is denied to you.");	951	op->failmsg ("That spell path is denied to you.");
1077	return 0;	952	return 0;
1078	}	953	}
1079		954
		955	object *skill = 0;
		956
1080	/* if it is a player casting the spell, and they are really casting it	957	/* if it is a player casting the spell, and they are really casting it
1081	* (vs it coming from a wand, scroll, or whatever else), do some	958	* (vs it coming from a wand, scroll, or whatever else), do some
1082	* checks. We let monsters do special things - eg, they	959	* checks. We let monsters do special things - eg, they
1083	* don't need the skill, bypass level checks, etc. The monster function	960	* don't need the SKILL, BYpass level checks, etc. The monster function
1084	* should take care of that.	961	* should take care of that.
1085	* Remove the wiz check here and move it further down - some spells	962	* Remove the wiz check here and move it further down - some spells
1086	* need to have the right skill pointer passed, so we need to	963	* need to have the right skill pointer passed, so we need to
1087	* at least process that code.	964	* at least process that code.
1088	*/	965	*/
1089	if (op->type == PLAYER && op == caster)	966	if (op->type == PLAYER && op == caster)
1090	{	967	{
1091	cast_level = caster_level (caster, spell_ob);
1092	if (spell_ob->skill)	968	if (spell_ob->skill)
1093	{	969	{
1094	skill = find_skill_by_name (op, spell_ob->skill);	970	skill = find_skill_by_name (op, spell_ob->skill);
		971
1095	if (!skill)	972	if (!skill)
1096	{	973	{
1097	new_draw_info_format (NDI_UNIQUE, 0, op, "You need the skill %s to cast %s.", &spell_ob->skill, &spell_ob->name);	974	op->failmsgf ("You need the %s skill to cast %s! "
		975	"H<You either need to learn the skill via a skill scroll "
		976	"or you need to wear a talisman, holy symbol or another skill tool.>",
		977	&spell_ob->skill, &spell_ob->name);
1098	return 0;	978	return 0;
1099	}	979	}
1100	if (min_casting_level (op, spell_ob) > cast_level && !QUERY_FLAG (op, FLAG_WIZ))	980
		981	const char *msg = "";
		982
		983	int caster_level = skill->level;
		984
		985	if (op->path_attuned & spell_ob->path_attuned)
1101	{	986	{
1102	new_draw_info (NDI_UNIQUE, 0, op, "You lack enough skill to cast that spell.");	987	caster_level += min (caster_level, ATTUNE_REPELL);
		988	msg = " (attuned)";
		989	}
		990
		991	if (op->path_repelled & spell_ob->path_attuned)
		992	{
		993	caster_level -= ATTUNE_REPELL; // negative is ok
		994	msg = " (repelled)";
		995	}
		996
		997	if (spell_ob->level > caster_level)
		998	{
		999	op->failmsgf ("You lack enough skill to cast that spell! "
		1000	"H<Your effective cast level is %d%s, but level %d is required.>",
		1001	caster_level, msg, spell_ob->level);
		1002	if (!op->is_wiz ())
1103	return 0;	1003	return 0;
1104	}	1004	}
1105	}	1005	}
		1006
1106	/* If the caster is the wiz, they don't ever fail, and don't have	1007	/* If the caster is the wiz, they don't ever fail, and don't have
1107	* to have sufficient grace/mana.	1008	* to have sufficient grace/mana.
1108	*/	1009	*/
1109	if (!QUERY_FLAG (op, FLAG_WIZ))	1010	if (!op->flag [FLAG_WIZCAST])
1110	{	1011	{
1111	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&	1012	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&
1112	SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) > op->stats.sp)	1013	SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) > op->stats.sp)
1113	{	1014	{
1114	new_draw_info (NDI_UNIQUE, 0, op, "You don't have enough mana.");	1015	op->failmsg ("You don't have enough mana!");
1115	return 0;	1016	return 0;
1116	}	1017	}
1117		1018
1118	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) &&	1019	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) &&
1119	SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) > op->stats.grace)	1020	SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) > op->stats.grace)
1120	{	1021	{
1121	if (random_roll (0, op->stats.Wis - 1, op, PREFER_HIGH) + op->stats.grace -	1022	if (random_roll (0, op->stats.Wis - 1, op, PREFER_HIGH) + op->stats.grace -
1122	10 * SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) / op->stats.maxgrace > 0)	1023	10 * SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) / op->stats.maxgrace > 0)
1123	{
1124	new_draw_info_format (NDI_UNIQUE, 0, op, "%s grants your prayer, though you are unworthy.", godname);	1024	op->statusmsg (format ("%s grants your prayer, though you are unworthy.", godname));
1125	}
1126	else	1025	else
1127	{	1026	{
1128	prayer_failure (op, op->stats.grace, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) - op->stats.grace);	1027	prayer_failure (op, op->stats.grace, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) - op->stats.grace);
1129	new_draw_info_format (NDI_UNIQUE, 0, op, "%s ignores your prayer.", godname);	1028	op->failmsgf ("%s ignores your prayer.", godname);
1130	return 0;	1029	return 0;
1131	}	1030	}
1132	}	1031	}
1133		1032
1134	/* player/monster is trying to cast the spell. might fumble it */	1033	/* player/monster is trying to cast the spell. might fumble it */
1135	if (spell_ob->stats.grace && random_roll (0, 99, op, PREFER_HIGH) <	1034	if (spell_ob->stats.grace && random_roll (0, 99, op, PREFER_HIGH) <
1136	(spell_ob->level / (float) MAX (1, op->level) * cleric_chance[op->stats.Wis]))	1035	(spell_ob->level / (float) max (1, op->level) * cleric_chance[op->stats.Wis]))
1137	{	1036	{
1138	play_sound_player_only (op->contr, SOUND_FUMBLE_SPELL, 0, 0);	1037	op->contr->play_sound (sound_find ("fumble_spell"));
1139	new_draw_info (NDI_UNIQUE, 0, op, "You fumble the spell.");	1038	op->failmsg ("You fumble the prayer.");
1140
1141	if (settings.casting_time == TRUE)
1142	op->casting_time = -1;
1143		1039
1144	op->stats.grace -= random_roll (1, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE), op, PREFER_LOW);	1040	op->stats.grace -= random_roll (1, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE), op, PREFER_LOW);
1145	return 0;	1041	return 0;
1146	}	1042	}
1147	else if (spell_ob->stats.sp)	1043	else if (spell_ob->stats.sp)
1148	{	1044	{
1149	int failure = random_roll (0, 199, op, PREFER_HIGH) - op->contr->encumbrance + op->level - spell_ob->level + 35;	1045	int failure = random_roll (0, 199, op, PREFER_HIGH) - op->contr->encumbrance + op->level - spell_ob->level + 35;
1150		1046
1151	if (failure < 0)	1047	if (failure < 0)
1152	{	1048	{
1153	new_draw_info (NDI_UNIQUE, 0, op, "You bungle the spell because you have too much heavy equipment in use.");	1049	op->failmsg ("You bungle the spell because you have too much heavy equipment in use.");
1154	if (settings.spell_failure_effects == TRUE)	1050	if (settings.spell_failure_effects == TRUE)
1155	spell_failure (op, failure, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), skill);	1051	spell_failure (op, failure, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), skill);
1156		1052
1157	op->stats.sp -= random_roll (0, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), op, PREFER_LOW);	1053	op->stats.sp -= random_roll (0, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), op, PREFER_LOW);
1158	return 0;	1054	return 0;
1159	}	1055	}
1160	}	1056	}
1161	}	1057	}
1162	}	1058	}
1163		1059
1164	mflags = get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL);	1060	int mflags = op->ms ().flags ();
1165		1061
1166	/* See if we can cast a spell here. If the caster and op are	1062	/* 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	1063	* not alive, then this would mean that the mapmaker put the
1168	* objects on the space - presume that they know what they are	1064	* objects on the space - presume that they know what they are
1169	* doing.	1065	* doing.
1170	*/	1066	*/
1171		1067
1172	if ((mflags & P_SAFE) && !QUERY_FLAG (op, FLAG_WIZCAST)) // There is _ABSOLUTELY_ no magic allowed here (except wizards :-)!	1068	if ((mflags & P_SAFE) && !op->flag [FLAG_WIZCAST]) // There is _ABSOLUTELY_ no magic allowed here (except wizards :-)!
1173	{	1069	{
		1070	op->speed_left -= 2 * op->speed; // freeze for two ticks, so we don't flood
1174	new_draw_info (NDI_UNIQUE, 0, op, "This ground is sacred! The gods prevent any magical effects done by you here!.");	1071	op->failmsg ("This ground is sacred! The gods prevent any magical effects done by you here!");
1175	return 0;	1072	return 0;
1176	}	1073	}
1177		1074
1178	if ((spell_ob->type == SPELL)	1075	if ((spell_ob->type == SPELL)
1179	&& (caster->type != POTION)	1076	&& (caster->type != POTION)
1180	&& !QUERY_FLAG (op, FLAG_WIZCAST)	1077	&& !op->flag [FLAG_WIZCAST]
1181	&& (QUERY_FLAG (caster, FLAG_ALIVE)	1078	&& (caster->flag [FLAG_ALIVE]
1182	|| QUERY_FLAG (op, FLAG_ALIVE))	1079	|| op->flag [FLAG_ALIVE])
1183	&& (((mflags & P_NO_MAGIC) && spell_ob->stats.sp) || ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)))	1080	&& (((mflags & P_NO_MAGIC) && spell_ob->stats.sp) || ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)))
1184	{	1081	{
1185	if (op->type != PLAYER)	1082	if (op->type != PLAYER)
1186	return 0;	1083	return 0;
1187		1084
1188	if ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)	1085	if ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)
1189	new_draw_info_format (NDI_UNIQUE, 0, op, "This ground is unholy! %s ignores you.", godname);	1086	op->failmsgf ("This ground is unholy! %s ignores you.", godname);
1190	else	1087	else if (object *item = op->contr->ranged_ob)
1191	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks the spell!");
1192
1193	return 0;
1194	}
1195
1196	if (caster == op && settings.casting_time == TRUE && spell_ob->type == SPELL)
1197	{
1198	if (op->casting_time == -1)
1199	{ /* begin the casting */
1200	op->casting_time = (sint16) (spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob));
1201	op->spell = spell_ob;
1202	/* put the stringarg into the object struct so that when the
1203	* spell is actually cast, it knows about the stringarg.
1204	* necessary for the invoke command spells.
1205	*/
1206	if (stringarg)
1207	{	1088	{
1208	op->spellarg = strdup (stringarg);	1089	if (item->type == SPELL)
1209	}	1090	op->failmsg ("Something blocks your spellcasting.");
		1091	else if (item->type == SCROLL)
		1092	op->failmsg ("Something blocks the magic of your scroll.");
1210	else	1093	else
1211	op->spellarg = NULL;	1094	op->failmsg ("Something blocks the magic of your item.");
1212	return 0;
1213	}
1214	else if (op->casting_time != 0)
1215	{
1216	if (op->type == PLAYER)
1217	new_draw_info (NDI_UNIQUE, 0, op, "You are casting!");
1218	return 0;
1219	}	1095	}
1220	else	1096	else
1221	{ /* casting_time == 0 */	1097	op->failmsg ("Something blocks the spell!");
1222	op->casting_time = -1;	1098
1223	spell_ob = op->spell;	1099	return 0;
1224	stringarg = op->spellarg;
1225	}
1226	}
1227	else
1228	{	1100	}
		1101
		1102	// undo the flood protection from earlier
		1103	op->speed_left += 4 * op->speed; // ~0.5s on failure
		1104
1229	/* Take into account how long it takes to cast the spell.	1105	/* Take into account how long it takes to cast the spell.
1230	* if the player is casting it, then we use the time in	1106	* if the player is casting it, then we use the time in
1231	* the spell object. If it is a spell object, have it	1107	* the spell object. If it is a spell object, have it
1232	* take two ticks. Things that cast spells on the players	1108	* take two ticks. Things that cast spells on the players
1233	* behalf (eg, altars, and whatever else) shouldn't cost	1109	* behalf (eg, altars, and whatever else) shouldn't cost
1234	* the player any time.	1110	* the player any time.
1235	* Ignore casting time for firewalls	1111	* Ignore casting time for firewalls
		1112	*/
		1113	if (caster == op && caster->type != FIREWALL)
		1114	{
		1115	op->speed_left -= spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * op->speed;
		1116	/* Other portions of the code may also decrement the speed of the player, so
		1117	* put a lower limit so that the player isn't stuck here too long
1236	*/	1118	*/
1237	if (caster == op && caster->type != FIREWALL)
1238	{
1239	op->speed_left -= spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * FABS (op->speed);
1240	/* Other portions of the code may also decrement the speed of the player, so
1241	* put a lower limit so that the player isn't stuck here too long
1242	*/
1243	if ((spell_ob->casting_time > 0) && op->speed_left < -spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * FABS (op->speed))	1119	if ((spell_ob->casting_time > 0) && op->speed_left < -spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * op->speed)
1244	op->speed_left = -spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * FABS (op->speed);	1120	op->speed_left = -spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * op->speed;
1245	}	1121	}
1246	else if (caster->type == WAND || caster->type == HORN || caster->type == ROD || caster->type == POTION || caster->type == SCROLL)	1122	else if (caster->type == WAND || caster->type == HORN || caster->type == ROD || caster->type == POTION || caster->type == SCROLL)
1247	{
1248	op->speed_left -= 2 * FABS (op->speed);	1123	op->speed_left -= 2 * op->speed;
1249	}
1250	}
1251		1124
1252	if (op->type == PLAYER && op == caster)	1125	if (op->type == PLAYER && op == caster)
1253	{	1126	{
1254	op->stats.grace -= SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE);	1127	op->stats.grace -= SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE);
1255	op->stats.sp -= SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA);	1128	op->stats.sp -= SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA);
…		…
1260	* object requires.	1133	* object requires.
1261	*/	1134	*/
1262	if (op != caster && !skill && caster->skill)	1135	if (op != caster && !skill && caster->skill)
1263	{	1136	{
1264	skill = find_skill_by_name (op, caster->skill);	1137	skill = find_skill_by_name (op, caster->skill);
		1138
1265	if (!skill)	1139	if (!skill)
1266	{	1140	{
1267	new_draw_info_format (NDI_UNIQUE, 0, op, "You lack the skill %s to use the %s", &caster->skill, query_name (caster));	1141	op->failmsgf ("You lack the %s skill, which is required to use the %s!", &caster->skill, query_name (caster));
1268	return 0;	1142	return 0;
1269	}	1143	}
1270	change_skill (op, skill, 0); /* needed for proper exp credit */
1271	}	1144	}
		1145
		1146	if (INVOKE_OBJECT (CAST_SPELL, spell_ob, ARG_OBJECT (op), ARG_OBJECT (caster), ARG_INT (dir), ARG_STRING (spellparam)))
		1147	return RESULT_INT (0);
		1148
		1149	// temporaroly replace chosen_skill by skill, we assume skill *could* be applied,
		1150	// at least temporarily, which might not be true due to slot restrictions, but hey
		1151	// invoke requires it basically.
		1152
		1153	object *chosen_skill = op->chosen_skill;
		1154	op->chosen_skill = skill;
1272		1155
1273	switch (spell_ob->subtype)	1156	switch (spell_ob->subtype)
1274	{	1157	{
1275	/* The order of case statements is same as the order they show up	1158	/* The order of case statements is same as the order they show up
1276	* in in spells.h.	1159	* in spells.h.
1277	*/	1160	*/
1278	case SP_RAISE_DEAD:	1161	case SP_RAISE_DEAD:
1279	success = cast_raise_dead_spell (op, caster, spell_ob, dir, stringarg);	1162	success = cast_raise_dead_spell (op, caster, spell_ob, dir, spellparam);
1280	break;	1163	break;
1281		1164
1282	case SP_RUNE:	1165	case SP_RUNE:
1283	success = write_rune (op, caster, spell_ob, dir, stringarg);	1166	success = write_rune (op, caster, spell_ob, dir, spellparam);
1284	break;	1167	break;
1285		1168
1286	case SP_MAKE_MARK:	1169	case SP_MAKE_MARK:
1287	success = write_mark (op, spell_ob, stringarg);	1170	success = write_mark (op, spell_ob, spellparam);
1288	break;	1171	break;
1289		1172
1290	case SP_BOLT:	1173	case SP_BOLT:
1291	success = fire_bolt (op, caster, dir, spell_ob, skill);	1174	success = fire_bolt (op, caster, dir, spell_ob, skill);
1292	break;	1175	break;
…		…
1310	case SP_SMITE:	1193	case SP_SMITE:
1311	success = cast_smite_spell (op, caster, dir, spell_ob);	1194	success = cast_smite_spell (op, caster, dir, spell_ob);
1312	break;	1195	break;
1313		1196
1314	case SP_MAGIC_MISSILE:	1197	case SP_MAGIC_MISSILE:
1315	success = fire_arch_from_position (op, caster, op->x + freearr_x[dir], op->y + freearr_y[dir], dir, spell_ob);	1198	success = fire_arch_from_position (op, caster, op->x, op->y, dir, spell_ob);
1316	break;	1199	break;
1317		1200
1318	case SP_SUMMON_GOLEM:	1201	case SP_SUMMON_GOLEM:
1319	success = summon_golem (op, caster, dir, spell_ob);	1202	success = summon_golem (op, caster, dir, spell_ob);
1320	break;	1203	break;
1321		1204
1322	case SP_DIMENSION_DOOR:	1205	case SP_DIMENSION_DOOR:
1323	/* dimension door needs the actual caster, because that is what is	1206	/* dimension door needs the actual caster, because that is what is
1324	* moved.	1207	* moved.
1325	*/	1208	*/
1326	success = dimension_door (op, caster, spell_ob, dir);	1209	success = dimension_door (op, caster, spell_ob, dir, spellparam);
1327	break;	1210	break;
1328		1211
1329	case SP_MAGIC_MAPPING:	1212	case SP_MAGIC_MAPPING:
1330	if (op->type == PLAYER)	1213	if (op->type == PLAYER)
1331	{	1214	{
…		…
1364	case SP_HEALING:	1247	case SP_HEALING:
1365	success = cast_heal (op, caster, spell_ob, dir);	1248	success = cast_heal (op, caster, spell_ob, dir);
1366	break;	1249	break;
1367		1250
1368	case SP_CREATE_FOOD:	1251	case SP_CREATE_FOOD:
1369	success = cast_create_food (op, caster, spell_ob, dir, stringarg);	1252	success = cast_create_food (op, caster, spell_ob, dir, spellparam);
1370	break;	1253	break;
1371		1254
1372	case SP_EARTH_TO_DUST:	1255	case SP_EARTH_TO_DUST:
1373	success = cast_earth_to_dust (op, caster, spell_ob);	1256	success = cast_earth_to_dust (op, caster, spell_ob);
1374	break;	1257	break;
…		…
1384	case SP_CURSE:	1267	case SP_CURSE:
1385	success = cast_curse (op, caster, spell_ob, dir);	1268	success = cast_curse (op, caster, spell_ob, dir);
1386	break;	1269	break;
1387		1270
1388	case SP_SUMMON_MONSTER:	1271	case SP_SUMMON_MONSTER:
1389	success = summon_object (op, caster, spell_ob, dir, stringarg);	1272	success = summon_object (op, caster, spell_ob, dir, spellparam);
1390	break;	1273	break;
1391		1274
1392	case SP_CHARGING:	1275	case SP_CHARGING:
1393	success = recharge (op, caster, spell_ob);	1276	success = recharge (op, caster, spell_ob);
1394	break;	1277	break;
…		…
1397	#ifdef NO_POLYMORPH	1280	#ifdef NO_POLYMORPH
1398	/* Not great, but at least provide feedback so if players do have	1281	/* Not great, but at least provide feedback so if players do have
1399	* polymorph (ie, find it as a preset item or left over from before	1282	* polymorph (ie, find it as a preset item or left over from before
1400	* it was disabled), they get some feedback.	1283	* it was disabled), they get some feedback.
1401	*/	1284	*/
1402	new_draw_info (NDI_UNIQUE, 0, op, "The spell fizzles");	1285	op->failmsg ("The spell fizzles!");
1403	success = 0;	1286	success = 0;
1404	#else	1287	#else
1405	success = cast_polymorph (op, caster, spell_ob, dir);	1288	success = cast_polymorph (op, caster, spell_ob, dir);
1406	#endif	1289	#endif
1407	break;	1290	break;
…		…
1427	break;	1310	break;
1428		1311
1429	case SP_MOVING_BALL:	1312	case SP_MOVING_BALL:
1430	if (spell_ob->path_repelled && (spell_ob->path_repelled & caster->path_attuned) != spell_ob->path_repelled)	1313	if (spell_ob->path_repelled && (spell_ob->path_repelled & caster->path_attuned) != spell_ob->path_repelled)
1431	{	1314	{
1432	new_draw_info_format (NDI_UNIQUE, 0, op, "You lack the proper attunement to cast %s", &spell_ob->name);	1315	op->failmsgf ("You lack the proper attunement to cast %s!", &spell_ob->name);
1433	success = 0;	1316	success = 0;
1434	}	1317	}
1435	else	1318	else
1436	success = fire_arch_from_position (op, caster, op->x + freearr_x[dir], op->y + freearr_y[dir], dir, spell_ob);	1319	success = fire_arch_from_position (op, caster, op->x, op->y, dir, spell_ob);
1437	break;	1320	break;
1438		1321
1439	case SP_SWARM:	1322	case SP_SWARM:
1440	success = fire_swarm (op, caster, spell_ob, dir);	1323	success = fire_swarm (op, caster, spell_ob, dir);
1441	break;	1324	break;
…		…
1448	/* in rune.c */	1331	/* in rune.c */
1449	success = dispel_rune (op, caster, spell_ob, skill, dir);	1332	success = dispel_rune (op, caster, spell_ob, skill, dir);
1450	break;	1333	break;
1451		1334
1452	case SP_CREATE_MISSILE:	1335	case SP_CREATE_MISSILE:
1453	success = cast_create_missile (op, caster, spell_ob, dir, stringarg);	1336	success = cast_create_missile (op, caster, spell_ob, dir, spellparam);
1454	break;	1337	break;
1455		1338
1456	case SP_CONSECRATE:	1339	case SP_CONSECRATE:
1457	success = cast_consecrate (op, caster, spell_ob);	1340	success = cast_consecrate (op, caster, spell_ob);
1458	break;	1341	break;
…		…
1479		1362
1480	case SP_AURA:	1363	case SP_AURA:
1481	success = create_aura (op, caster, spell_ob);	1364	success = create_aura (op, caster, spell_ob);
1482	break;	1365	break;
1483		1366
1484	case SP_TOWN_PORTAL:
1485	success = cast_create_town_portal (op, caster, spell_ob, dir);
1486	break;
1487
1488	case SP_PARTY_SPELL:	1367	case SP_PARTY_SPELL:
1489	success = cast_party_spell (op, caster, dir, spell_ob, stringarg);	1368	success = cast_party_spell (op, caster, dir, spell_ob, spellparam);
1490	break;	1369	break;
1491		1370
1492	default:	1371	default:
1493	if (!INVOKE_OBJECT (CAST_SPELL, spell_ob, ARG_OBJECT (op), ARG_OBJECT (caster), ARG_INT (dir), ARG_STRING (stringarg)))
1494	LOG (llevError, "cast_spell: Unhandled spell subtype %d\n", spell_ob->subtype);	1372	LOG (llevError, "cast_spell: Unhandled spell subtype %d\n", spell_ob->subtype);
1495	}
1496
1497	/* FIXME - we need some better sound suppport */
1498	// yes, for example, augment map info with the spell effect
1499	// so clients can calculate the sounds themselves
1500	//play_sound_map(op->map, op->x, op->y, SOUND_CAST_SPELL_0 + spell_ob->subtype);
1501
1502	/* free the spell arg */
1503	if (settings.casting_time == TRUE && stringarg)
1504	{	1373	}
1505	free (stringarg);	1374
1506	stringarg = 0;	1375	// restore chosen_skill
1507	}	1376	op->chosen_skill = chosen_skill;
		1377
		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	);
1508		1385
1509	return success;	1386	return success;
1510	}	1387	}
1511		1388
1512
1513	/* This is called from time.c/process_object(). That function	1389	/* This is called from time.c/process_object(). That function
1514	* calls this for any SPELL_EFFECT type objects. This function	1390	* calls this for any SPELL_EFFECT type objects. This function
1515	* then dispatches them to the appropriate specific routines.	1391	* then dispatches them to the appropriate specific routines.
1516	*/	1392	*/
1517	void	1393	void
1518	move_spell_effect (object *op)	1394	move_spell_effect (object *op)
1519	{	1395	{
…		…
1559	move_aura (op);	1435	move_aura (op);
1560	break;	1436	break;
1561	}	1437	}
1562	}	1438	}
1563		1439
1564	/* this checks to see if something special should happen if
1565	* something runs into the object.
1566	*/
1567	void
1568	check_spell_effect (object *op)
1569	{
1570	switch (op->subtype)
1571	{
1572	case SP_BOLT:
1573	move_bolt (op);
1574	return;
1575
1576	case SP_BULLET:
1577	check_bullet (op);
1578	return;
1579	}
1580	}
1581
1582	/* This is called by move_apply. Basically, if someone	1440	/* This is called by move_apply. Basically, if someone
1583	* moves onto a spell effect and the walk_on or fly_on flags	1441	* moves onto a spell effect and the walk_on or fly_on flags
1584	* are set, this is called. This should only be called for	1442	* are set, this is called. This should only be called for
1585	* objects of the appropraite type.	1443	* objects of the appropriate type.
1586	*/	1444	*/
1587	void	1445	void
1588	apply_spell_effect (object *spell, object *victim)	1446	apply_spell_effect (object *spell, object *victim)
1589	{	1447	{
1590	switch (spell->subtype)	1448	switch (spell->subtype)
1591	{	1449	{
1592	case SP_CONE:	1450	case SP_CONE:
1593	if (QUERY_FLAG (victim, FLAG_ALIVE) && spell->speed && spell->attacktype)	1451	if (victim->flag [FLAG_ALIVE] && spell->has_active_speed () && spell->attacktype)
1594	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 0);	1452	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 0);
1595	break;	1453	break;
1596		1454
1597	case SP_MAGIC_MISSILE:	1455	case SP_MAGIC_MISSILE:
1598	if (QUERY_FLAG (victim, FLAG_ALIVE))	1456	if (victim->flag [FLAG_ALIVE])
1599	{	1457	{
1600	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);	1458	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);
1601
1602	if (!spell->destroyed ())
1603	spell->destroy ();	1459	spell->destroy ();
1604	}	1460	}
1605	break;	1461	break;
1606		1462
1607	case SP_MOVING_BALL:	1463	case SP_MOVING_BALL:
1608	if (QUERY_FLAG (victim, FLAG_ALIVE))	1464	if (victim->flag [FLAG_ALIVE])
1609	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);	1465	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);
1610	else if (victim->materialname)	1466	else if (victim->material != MATERIAL_NULL)
1611	save_throw_object (victim, spell->attacktype, spell);	1467	save_throw_object (victim, spell->attacktype, spell);
		1468
1612	break;	1469	break;
1613	}	1470	}
1614	}	1471	}
		1472
		1473	/**
		1474	* This function will let a fireball explode at the position of
		1475	* the victim with a specific maximum level.
		1476	*/
		1477	void
		1478	create_exploding_ball_at (object *victim, int level)
		1479	{
		1480	object *ball = archetype::get (EXPLODING_FIREBALL);
		1481	ball->dam_modifier = random_roll (1, level, victim, PREFER_LOW) / 5 + 1;
		1482	ball->stats.maxhp = random_roll (1, level, victim, PREFER_LOW) / 10 + 2;
		1483	ball->insert_at (victim);
		1484	}

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