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Comparing deliantra/server/server/spell_util.C (file contents):
Revision 1.24 by root, Wed Dec 20 09:14:22 2006 UTC vs.
Revision 1.131 by root, Sat Nov 17 23:40:04 2018 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 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
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	6	* Copyright (©) 2001 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	7	* Copyright (©) 1992 Frank Tore Johansen
6		8	*
7	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
8	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
9	the Free Software Foundation; either version 2 of the License, or	11	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	12	* option) any later version.
11		13	*
12	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,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	17	* GNU General Public License for more details.
16		18	*
17	You should have received a copy of the GNU General Public License	19	* You should have received a copy of the Affero GNU General Public License
18	along with this program; if not, write to the Free Software	20	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	21	* <http://www.gnu.org/licenses/>.
20		22	*
21	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>
22	*/	24	*/
23
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>
28	#include <errno.h>	29	#include <errno.h>
29	#ifndef __CEXTRACT__
30	# include <sproto.h>	30	#include <sproto.h>
31	#endif
32	#include <sounds.h>	31	#include <sounds.h>
33		32
34	extern char *spell_mapping[];	33	extern char *spell_mapping[];
35		34
36	/* 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
37	* 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
38	* matching spells are used.	37	* matching spells are used.
39	*/	38	*/
40	object *	39	object *
41	find_random_spell_in_ob (object *ob, const char *skill)	40	find_random_spell_in_ob (object *ob, shstr_cmp skill)
42	{	41	{
43	int k = 0, s;	42	int k = 0, s;
44	object *tmp;
45		43
46	for (tmp = ob->inv; tmp; tmp = tmp->below)	44	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
47	if (tmp->type == SPELL && (!skill || tmp->skill == skill))	45	if (tmp->type == SPELL && (!skill || tmp->skill == skill))
48	k++;	46	k++;
49		47
50	/* No spells, no need to progess further */	48	/* No spells, no need to progess further */
51	if (!k)	49	if (!k)
52	return NULL;	50	return NULL;
53		51
54	s = RANDOM () % k;	52	s = rndm (k);
55		53
56	for (tmp = ob->inv; tmp; tmp = tmp->below)	54	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
57	if (tmp->type == SPELL && (!skill || tmp->skill == skill))	55	if (tmp->type == SPELL && (!skill || tmp->skill == skill))
58	{
59	if (!s)	56	if (!s)
60	return tmp;	57	return tmp;
61	else	58	else
62	s--;	59	s--;
63	}	60
64	/* Should never get here, but just in case */	61	/* Should never get here, but just in case */
65	return NULL;	62	return 0;
66	}	63	}
67		64
68	/* Relatively simple function that gets used a lot.	65	/* Relatively simple function that gets used a lot.
69	* Basically, it sets up the skill pointer for the spell being	66	* Basically, it sets up the skill pointer for the spell being
70	* cast. If op is really casting the spell, then the skill	67	* cast. If op is really casting the spell, then the skill
…		…
80	dest->skill = spob->skill;	77	dest->skill = spob->skill;
81	else	78	else
82	dest->skill = caster->skill;	79	dest->skill = caster->skill;
83	}	80	}
84		81
85	/* init_spells: This should really be called check_spells, as that
86	* is what it does. It goes through the spells looking for any
87	* obvious errors. This was most useful in debugging when re-doing
88	* all the spells to catch simple errors. To use it all the time
89	* will result in it spitting out messages that aren't really errors.
90	*/
91	void
92	init_spells (void)
93	{
94	#ifdef SPELL_DEBUG
95	static int init_spells_done = 0;
96	int i;
97	archetype *at;
98
99	if (init_spells_done)
100	return;
101	LOG (llevDebug, "Checking spells...\n");
102
103	for (at = first_archetype; at; at = at->next)
104	{
105	if (at->clone.type == SPELL)
106	{
107	if (at->clone.skill)
108	{
109	for (i = 1; i < NUM_SKILLS; i++)
110	if (!strcmp (skill_names[i], at->clone.skill))
111	break;
112	if (i == NUM_SKILLS)
113	{
114	LOG (llevError, "Spell %s has improper associated skill %s\n", at->name, at->clone.skill);
115	}
116	}
117	/* other_arch is already checked for in the loader */
118	}
119	}
120
121	i = 0;
122	while (spell_mapping[i])
123	{
124	if (!archetype::find (spell_mapping[i]))
125	{
126	LOG (llevError, "Unable to find spell mapping %s (%i)\n", spell_mapping[i], i);
127	}
128	i++;
129	}
130	LOG (llevDebug, "Checking spells completed.\n");
131	#endif
132	}
133
134	/* Dumps all the spells - now also dumps skill associated with the spell.
135	* not sure what this would be used for, as the data seems pretty
136	* minimal, but easy enough to keep around.
137	*/
138	void
139	dump_spells (void)
140	{
141	archetype *at;
142
143	for (at = first_archetype; at; at = at->next)
144	{
145	if (at->clone.type == SPELL)
146	{
147	fprintf (stderr, "%s:%s:%s:%s:%d\n", &at->clone.name,
148	&at->name, at->clone.other_arch ? &at->clone.other_arch->name : "<nil>", &at->clone.skill, at->clone.level);
149	}
150	}
151	}
152
153	/* pretty basic function - basically just takes	82	/* pretty basic function - basically just takes
154	* 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
155	*/	84	*/
156
157	void	85	void
158	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)
159	{	87	{
160
161	if (spob->other_arch != NULL)	88	if (spob->other_arch)
162	{	89	map->insert (spob->other_arch->instance (), x, y, originator);
163	object *effect = arch_to_object (spob->other_arch);
164
165	effect->x = x;
166	effect->y = y;
167
168	insert_ob_in_map (effect, map, originator, 0);
169	}
170	}	90	}
171		91
172	/*	92	static int
173	* This function takes a caster and spell and presents the	93	attuned_bonus (object *caster, object *spell, int level)
174	* effective level the caster needs to be to cast the spell.
175	* basically, it just adjusts the spell->level with attuned/repelled
176	* spellpaths. Was called path_level_mod
177	*
178	* caster is person casting hte spell.
179	* spell is the spell object.
180	* Returns modified level.
181	*/
182	int
183	min_casting_level (object *caster, object *spell)
184	{	94	{
185	int new_level;	95	// compute the attuned/repelled bonus
186		96	// attuned only increases up to 2 times the original level (i.e. bonus <= level) */
187	if (caster->path_denied & spell->path_attuned)	97	// repell has no such quarrels
188	return 1;	98	return (caster->path_attuned & spell->path_attuned ? min (level, +ATTUNE_REPELL) : 0)
189		99	+ (caster->path_repelled & spell->path_attuned ? -ATTUNE_REPELL : 0);
190	new_level = spell->level
191	+ ((caster->path_repelled & spell->path_attuned) ? +2 : 0) + ((caster->path_attuned & spell->path_attuned) ? -2 : 0);
192
193	return (new_level < 1) ? 1 : new_level;
194	}	100	}
195
196		101
197	/* This function returns the effective level the spell	102	/* This function returns the effective level the spell
198	* is being cast at.	103	* is being cast at.
199	* Note that I changed the repelled/attuned bonus to 2 from 5.
200	* This is because the new code compares casting_level against
201	* min_caster_level, so the difference is effectively 4
202	*/	104	*/
203
204	int	105	int
205	caster_level (object *caster, object *spell)	106	casting_level (object *caster, object *spell)
206	{	107	{
207	int level = caster->level;	108	int level = caster->level;
208
209	/* If this is a player, try to find the matching skill */
210	if (caster->type == PLAYER && spell->skill)
211	for (int i = 0; i < NUM_SKILLS; i++)
212	if (caster->contr->last_skill_ob[i] && caster->contr->last_skill_ob[i]->skill == spell->skill)
213	{
214	level = caster->contr->last_skill_ob[i]->level;
215	break;
216	}
217		109
218	/* 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. */
219	if (caster->type == ROD && caster->env && caster->env->type == PLAYER)	111	if (caster->type == ROD && caster->env && caster->env->type == PLAYER)
220	{	112	{
221	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);
222	int sk_level = skill ? skill->level : 1;	114	int sk_level = skill ? skill->level : 1;
223		115
224	level = MIN (level, sk_level + level / 10 + 1);	116	level = min (level, sk_level + level / 10 + 1);
225	}	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;
226		121
227	/* Got valid caster level. Now adjust for attunement */	122	int bonus = attuned_bonus (caster, spell, level);
228	level += ((caster->path_repelled & spell->path_attuned) ? -2 : 0) + ((caster->path_attuned & spell->path_attuned) ? 2 : 0);	123
		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);
229		129
230	/* 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
231	* errors in various places.	131	* errors in various places.
232	*/	132	*/
233	if (level < 1)	133	return clamp (level, 1, settings.max_level);
234	level = 1;
235
236	return level;
237	}	134	}
238		135
239	/* The following function scales the spellpoint cost of	136	/* The following function scales the spellpoint cost of
240	* a spell by it's increased effectiveness. Some of the	137	* a spell by it's increased effectiveness. Some of the
241	* lower level spells become incredibly vicious at high	138	* lower level spells become incredibly vicious at high
…		…
245	* caster is what is casting the spell, can be op.	142	* caster is what is casting the spell, can be op.
246	* spell is the spell object.	143	* spell is the spell object.
247	* 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
248	* mana. In that case, we return which ever value is higher.	145	* mana. In that case, we return which ever value is higher.
249	*/	146	*/
250
251	sint16	147	sint16
252	SP_level_spellpoint_cost (object *caster, object *spell, int flags)	148	SP_level_spellpoint_cost (object *caster, object *spell, int flags)
253	{	149	{
254	int sp, grace, level = caster_level (caster, spell);	150	int sp, grace, level = casting_level (caster, spell);
255		151
256	if (settings.spellpoint_level_depend == TRUE)	152	if (settings.spellpoint_level_depend == TRUE)
257	{	153	{
258	if (spell->stats.sp && spell->stats.maxsp)	154	if (spell->stats.sp && spell->stats.maxsp)
259	{
260	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));
261	}
262	else	156	else
263	sp = spell->stats.sp;	157	sp = spell->stats.sp;
264		158
265	sp *= (int) PATH_SP_MULT (caster, spell);	159	sp *= (int) PATH_SP_MULT (caster, spell);
266	if (!sp && spell->stats.sp)	160	if (!sp && spell->stats.sp)
267	sp = 1;	161	sp = 1;
268		162
269	if (spell->stats.grace && spell->stats.maxgrace)	163	if (spell->stats.grace && spell->stats.maxgrace)
270	{
271	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));
272	}
273	else	165	else
274	grace = spell->stats.grace;	166	grace = spell->stats.grace;
275		167
276	grace *= (int) PATH_SP_MULT (caster, spell);	168	grace *= PATH_SP_MULT (caster, spell);
277	if (spell->stats.grace && !grace)	169	if (spell->stats.grace && !grace)
278	grace = 1;	170	grace = 1;
279	}	171	}
280	else	172	else
281	{	173	{
282	sp = (int) (spell->stats.sp * PATH_SP_MULT (caster, spell));	174	sp = (int) (spell->stats.sp * PATH_SP_MULT (caster, spell));
283	if (spell->stats.sp && !sp)	175	if (spell->stats.sp && !sp)
284	sp = 1;	176	sp = 1;
		177
285	grace = (int) (spell->stats.grace * PATH_SP_MULT (caster, spell));	178	grace = (int) (spell->stats.grace * PATH_SP_MULT (caster, spell));
286	if (spell->stats.grace && !grace)	179	if (spell->stats.grace && !grace)
287	grace = 1;	180	grace = 1;
288	}	181	}
		182
289	if (flags == SPELL_HIGHEST)	183	if (flags == SPELL_HIGHEST)
290	return MAX (sp, grace);	184	return max (sp, grace);
291	else if (flags == SPELL_GRACE)	185	else if (flags == SPELL_GRACE)
292	return grace;	186	return grace;
293	else if (flags == SPELL_MANA)	187	else if (flags == SPELL_MANA)
294	return sp;	188	return sp;
295	else	189	else
…		…
297	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);
298	return 0;	192	return 0;
299	}	193	}
300	}	194	}
301		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	}
302		206
303	/* SP_level_dam_adjust: Returns adjusted damage based on the caster.	207	/* SP_level_dam_adjust: Returns adjusted damage based on the caster.
304	* spob is the spell we are adjusting.	208	* spob is the spell we are adjusting.
305	*/	209	*/
306	int	210	int
307	SP_level_dam_adjust (object *caster, object *spob)	211	SP_level_dam_adjust (object *caster, object *spob)
308	{	212	{
309	int level = caster_level (caster, spob);
310	int adj = level - min_casting_level (caster, spob);
311
312	if (adj < 0)
313	adj = 0;
314	if (spob->dam_modifier)	213	if (!spob->dam_modifier)
315	adj /= spob->dam_modifier;
316	else
317	adj = 0;
318	return adj;	214	return 0;
		215
		216	return SP_casting_level (caster, spob) / spob->dam_modifier;
319	}	217	}
320		218
321	/* Adjust the strength of the spell based on level.	219	/* Adjust the strength of the spell based on level.
322	* This is basically the same as SP_level_dam_adjust above,	220	* This is basically the same as SP_level_dam_adjust above,
323	* but instead looks at the level_modifier value.	221	* but instead looks at the level_modifier value.
324	*/	222	*/
325	int	223	int
326	SP_level_duration_adjust (object *caster, object *spob)	224	SP_level_duration_adjust (object *caster, object *spob)
327	{	225	{
328	int level = caster_level (caster, spob);
329	int adj = level - min_casting_level (caster, spob);
330
331	if (adj < 0)
332	adj = 0;
333	if (spob->duration_modifier)	226	if (!spob->duration_modifier)
334	adj /= spob->duration_modifier;
335	else
336	adj = 0;
337
338	return adj;	227	return 0;
		228
		229	return SP_casting_level (caster, spob) / spob->duration_modifier;
339	}	230	}
340		231
341	/* Adjust the strength of the spell based on level.	232	/* Adjust the strength of the spell based on level.
342	* This is basically the same as SP_level_dam_adjust above,	233	* This is basically the same as SP_level_dam_adjust above,
343	* but instead looks at the level_modifier value.	234	* but instead looks at the level_modifier value.
344	*/	235	*/
345	int	236	int
346	SP_level_range_adjust (object *caster, object *spob)	237	SP_level_range_adjust (object *caster, object *spob)
347	{	238	{
348	int level = caster_level (caster, spob);
349	int adj = level - min_casting_level (caster, spob);
350
351	if (adj < 0)
352	adj = 0;
353	if (spob->range_modifier)	239	if (!spob->range_modifier)
354	adj /= spob->range_modifier;
355	else
356	adj = 0;
357
358	return adj;	240	return 0;
		241
		242	return SP_casting_level (caster, spob) / spob->range_modifier;
359	}	243	}
360		244
361	/* 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
362	* as an existing spell, we presume they know it.	246	* as an existing spell, we presume they know it.
363	* 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.
364	*/	248	*/
365	object *	249	object *
366	check_spell_known (object *op, const char *name)	250	check_spell_known (object *op, shstr_cmp name)
367	{	251	{
368	object *spop;	252	object *spop;
369		253
370	for (spop = op->inv; spop; spop = spop->below)	254	for (spop = op->inv; spop; spop = spop->below)
371	if (spop->type == SPELL && !strcmp (spop->name, name))	255	if (spop->type == SPELL && spop->name == name)
372	return spop;	256	return spop;
373		257
374	return NULL;	258	return 0;
375	}	259	}
376		260
377		261	/*
378	/*
379	* Look at object 'op' and see if they know the spell	262	* Look at object 'op' and see if they know the spell
380	* spname. This is pretty close to check_spell_known	263	* spname. This is pretty close to check_spell_known
381	* above, but it uses a looser matching mechanism.	264	* above, but it uses a looser matching mechanism.
382	* returns the matching spell object, or NULL.	265	* returns the matching spell object, or NULL.
383	* If we match multiple spells but don't get an	266	* If we match multiple spells but don't get an
384	* exact match, we also return NULL.	267	* exact match, we also return NULL.
385	*/	268	*/
386
387	object *	269	object *
388	lookup_spell_by_name (object *op, const char *spname)	270	object::find_spell (const_utf8_string prefix) const
389	{	271	{
390	object *spob1 = NULL, *spob2 = NULL, *spob;	272	if (shstr_cmp name = prefix)
391	int nummatch = 0;	273	{
392		274	// case 1, match spell name exactly
393	if (spname == NULL)
394	return NULL;
395
396	/* Try to find the spell. We store the results in spob1
397	* and spob2 - spob1 is only taking the length of
398	* the past spname, spob2 uses the length of the spell name.
399	*/
400	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;
401	{	278	}
		279	else
		280	{
		281	// case 2, match prefix
		282	int len = strlen (prefix);
		283
		284	for (object *spob = inv; spob; spob = spob->below)
402	if (spob->type == SPELL)	285	if (spob->type == SPELL
403	{	286	&& spob->name.length () < len
404	if (!strncmp (spob->name, spname, strlen (spname)))	287	&& prefix [spob->name.length ()] <= ' '
405	{	288	&& !memcmp (prefix, spob->name, spob->name.length ()))
406	nummatch++;
407	spob1 = spob;
408	}
409	else if (!strncmp (spob->name, spname, strlen (spob->name)))
410	{
411	/* if spells have ambiguous names, it makes matching
412	* really difficult. (eg, fire and fireball would
413	* fall into this category). It shouldn't be hard to
414	* make sure spell names don't overlap in that fashion.
415	*/
416	if (spob2)
417	LOG (llevError, "Found multiple spells with overlapping base names: %s, %s\n", &spob2->name, &spob->name);
418	spob2 = spob;
419	}
420	}
421	}
422	/* if we have best match, return it. Otherwise, if we have one match
423	* on the loser match, return that, otehrwise null
424	*/
425	if (spob2)
426	return spob2;	289	return spob;
427	if (spob1 && nummatch == 1)	290	}
428	return spob1;	291
429	return NULL;	292	return 0;
430	}	293	}
431		294
432	/* reflwall - decides weither the (spell-)object sp_op will	295	/* reflwall - decides weither the (spell-)object sp_op will
433	* be reflected from the given mapsquare. Returns 1 if true.	296	* be reflected from the given mapsquare. Returns 1 if true.
434	* (Note that for living creatures there is a small chance that	297	* (Note that for living creatures there is a small chance that
…		…
437	* eg, updated for tiled maps.	300	* eg, updated for tiled maps.
438	*/	301	*/
439	int	302	int
440	reflwall (maptile *m, int x, int y, object *sp_op)	303	reflwall (maptile *m, int x, int y, object *sp_op)
441	{	304	{
442	object *op;
443
444	if (OUT_OF_REAL_MAP (m, x, y))	305	if (OUT_OF_REAL_MAP (m, x, y))
445	return 0;	306	return 0;
		307
446	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)
447	if (QUERY_FLAG (op, FLAG_REFL_SPELL)	309	if (op->flag [FLAG_REFL_SPELL]
448	&& (!QUERY_FLAG (op, FLAG_ALIVE)	310	&& (!op->flag [FLAG_ALIVE]
449	|| sp_op->type == LIGHTNING // XXX: elmex: why is LIGHTNING special cased here?
450	// most spells use subtypes for bolts today...
451	|| (rndm (0, 99)) < 90 - (sp_op->level / 10)))	311	|| (rndm (0, 99)) < 90 - (sp_op->level / 10)))
452	return 1;	312	return 1;
453		313
454	return 0;	314	return 0;
455	}	315	}
456		316
457	/* cast_create_object: creates object new_op in direction dir	317	/* cast_create_object: creates object new_op in direction dir
458	* or if that is blocked, beneath the player (op).	318	* or if that is blocked, beneath the player (op).
459	* we pass 'caster', but don't use it for anything.	319	* we pass 'caster', but don't use it for anything.
460	* This is really just a simple wrapper function .	320	* This is really just a simple wrapper function .
461	* returns the direction that the object was actually placed	321	* returns true to indicate whether the operation was successful.
462	* in.	322	* destroys the object is unsuccessful.
463	*/	323	*/
464	int	324	bool
465	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)
466	{	326	{
467	maptile *m;	327	mapxy pos (op);
468	sint16 sx, sy;	328	pos.move (dir);
469		329
470	if (dir &&	330	if (!pos.normalise ()
471	((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
472	OB_TYPE_MOVE_BLOCK (op, GET_MAP_MOVE_BLOCK (m, sx, sy))))	332	|| !new_op->can_drop_at (pos.m, pos.x, pos.y)
473	{	333	)
474	new_draw_info (NDI_UNIQUE, 0, op, "Something is in the way.");
475	new_draw_info (NDI_UNIQUE, 0, op, "You cast it at your feet.");
476	dir = 0;
477	}	334	{
478	new_op->x = op->x + freearr_x[dir];	335	op->failmsg ("Your spell fizzles! H<Something is in the way.>");
479	new_op->y = op->y + freearr_y[dir];	336	new_op->destroy ();
480	if (dir == 0)	337	return 0;
481	insert_ob_in_map (new_op, op->map, op, INS_BELOW_ORIGINATOR);	338	}
482	else	339
483	insert_ob_in_map (new_op, op->map, op, 0);	340	new_op->set_flag (FLAG_IDENTIFIED);
		341
		342	pos.insert (new_op, op, dir ? 0 : INS_BELOW_ORIGINATOR);
		343
484	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;
485	}	363	}
486		364
487	/* 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.
488	* immune_stop is basically the attacktype of the spell (why	366	* immune_stop is basically the attacktype of the spell (why
489	* passed as a different value, not sure of). If immune_stop	367	* passed as a different value, not sure of). If immune_stop
490	* has the AT_MAGIC bit set, and there is a counterwall	368	* has the AT_MAGIC bit set, and there is a counterwall
491	* 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
492	* 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.
493	*	371	*/
494	*/
495
496	int	372	int
497	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)
498	{	374	{
499	object *tmp;	375	if (!xy_normalise (m, x, y))
500	int mflags;
501	maptile *mp;
502
503	mp = m;
504	mflags = get_map_flags (m, &mp, x, y, &x, &y);
505
506	if (mflags & P_OUT_OF_MAP)
507	return 0;	376	return 0;
508		377
509	if (OB_TYPE_MOVE_BLOCK (op, GET_MAP_MOVE_BLOCK (mp, x, y)))	378	mapspace &ms = m->at (x, y);
		379	ms.update ();
		380
		381	if (OB_TYPE_MOVE_BLOCK (op, ms.move_block))
510	return 0;	382	return 0;
511		383
512	for (tmp = GET_MAP_OB (mp, x, y); tmp != NULL; tmp = tmp->above)	384	int max_effects = 5; // max. number of similar spells per mapspace
		385
		386	for (object *tmp = ms.top; tmp; tmp = tmp->below)
513	{	387	{
514	/* If there is a counterspell on the space, and this	388	/* If there is a counterspell on the space, and this
515	* object is using magic, don't progress. I believe we could	389	* object is using magic, don't progress. I believe we could
516	* 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
517	* 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
518	* resources, and may not work as well if a player is standing	392	* resources, and may not work as well if a player is standing
519	* 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
520	* 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
521	* spell to actually hit the counterwall and be sucked up.	395	* spell to actually hit the counterwall and be sucked up.
522	*/	396	*/
523	if ((tmp->attacktype & AT_COUNTERSPELL) &&	397	if ((tmp->attacktype & AT_COUNTERSPELL)
524	(tmp->type != PLAYER) && !QUERY_FLAG (tmp, FLAG_MONSTER) &&	398	&& !tmp->flag [FLAG_MONSTER]
525	(tmp->type != WEAPON) && (tmp->type != BOW) && (tmp->type != ARROW) && (tmp->type != GOLEM) && (immune_stop & AT_MAGIC))	399	&& (tmp->type != PLAYER)
		400	&& (tmp->type != WEAPON)
		401	&& (tmp->type != BOW)
		402	&& (tmp->type != ARROW)
		403	&& (tmp->type != GOLEM)
		404	&& !tmp->flag [FLAG_IS_FLOOR] // XXX:
		405	// we special case floor here because there
		406	// are sometimes spell effect floors
		407	// which are used to inflict damage
		408	// (and those shouldn't go away from
		409	// sanctuary) see also: permanent lava
		410	&& (immune_stop & AT_MAGIC))
526	return 0;	411	return 0;
527		412
528	/* This is to prevent 'out of control' spells. Basically, this
529	* limits one spell effect per space per spell. This is definately
530	* needed for performance reasons, and just for playability I believe.
531	* there are no such things as multispaced spells right now, so
532	* we don't need to worry about the head.
533	*/
534	if ((tmp->stats.maxhp == op->stats.maxhp) && (tmp->type == op->type) && (tmp->subtype == op->subtype))
535	return 0;
536
537	/*
538	* Combine similar spell effects into one spell effect. Needed for
539	* performance reasons with meteor swarm and the like, but also for
540	* playability reasons.
541	*/
542	if (tmp->arch == op->arch
543	&& tmp->type == op->type	413	if (tmp->type == op->type)
544	&& tmp->subtype == op->subtype
545	&& tmp->owner == op->owner && ((tmp->subtype == SP_EXPLOSION) || (tmp->subtype == SP_CONE && tmp->stats.sp == op->stats.sp)))
546	{	414	{
547	tmp->stats.dam = MAX (tmp->stats.dam, op->stats.dam);	415	if (tmp->subtype == op->subtype
548	tmp->range = MAX (tmp->range, op->range);	416	&& tmp->arch == op->arch /* no harm if not comparing by name here */)
549	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)
550	return 0;	447	return 0;
551	}	448	}
552		449
553	/* 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
554	* ground to prevent it from moving along?	451	* ground to prevent it from moving along?
555	*/	452	*/
556	}	453	}
		454
557	/* If it passes the above tests, it must be OK */	455	/* If it passes the above tests, it must be OK */
558	return 1;	456	return 1;
559	}	457	}
560		458
561	/* fire_arch_from_position: fires an archetype.	459	/* fire_arch_from_position: fires an archetype.
…		…
566	* dir: direction to fire in.	464	* dir: direction to fire in.
567	* 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
568	* to fire.	466	* to fire.
569	* returns 0 on failure, 1 on success.	467	* returns 0 on failure, 1 on success.
570	*/	468	*/
571
572	int	469	int
573	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)
574	{	471	{
575	object *tmp;
576	int mflags;
577	maptile *m;
578
579	if (spell->other_arch == NULL)	472	if (!spell->other_arch)
580	return 0;	473	return 0;
581		474
582	m = op->map;	475	object *tmp = spell->other_arch->instance ();
583	mflags = get_map_flags (m, &m, x, y, &x, &y);
584	if (mflags & P_OUT_OF_MAP)
585	{
586	return 0;
587	}
588		476
589	tmp = arch_to_object (spell->other_arch);	477	if (!tmp)
590
591	if (tmp == NULL)
592	return 0;	478	return 0;
593
594	if (OB_TYPE_MOVE_BLOCK (tmp, GET_MAP_MOVE_BLOCK (m, x, y)))
595	{
596	new_draw_info (NDI_UNIQUE, 0, op, "You can't cast the spell on top of a wall!\n");
597	tmp->destroy ();
598	return 0;
599	}
600		479
601	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);
602	tmp->duration = spell->duration + SP_level_duration_adjust (caster, spell);	481	tmp->duration = spell->duration + SP_level_duration_adjust (caster, spell);
603	/* 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 */
604	tmp->stats.food = tmp->duration;	483	tmp->stats.food = tmp->duration;
605	tmp->range = spell->range + SP_level_range_adjust (caster, spell);	484	tmp->range = spell->range + SP_level_range_adjust (caster, spell);
606	tmp->attacktype = spell->attacktype;	485	tmp->attacktype = spell->attacktype;
607	tmp->x = x;
608	tmp->y = y;
609	tmp->direction = dir;	486	tmp->direction = dir;
610	if (op->owner != NULL)
611	tmp->set_owner (op);	487	tmp->set_owner (op);
612	else
613	tmp->set_owner (op);
614	tmp->level = caster_level (caster, spell);	488	tmp->level = casting_level (caster, spell);
615	set_spell_skill (op, caster, spell, tmp);	489	set_spell_skill (op, caster, spell, tmp);
616		490
617	/* needed for AT_HOLYWORD,AT_GODPOWER stuff */	491	/* needed for AT_HOLYWORD,AT_GODPOWER stuff */
618	if (tmp->attacktype & AT_HOLYWORD || tmp->attacktype & AT_GODPOWER)	492	if (tmp->attacktype & AT_HOLYWORD || tmp->attacktype & AT_GODPOWER)
619	{
620	if (!tailor_god_spell (tmp, op))	493	if (!tailor_god_spell (tmp, op))
621	return 0;	494	return 0;
622	}	495
623	if (QUERY_FLAG (tmp, FLAG_IS_TURNABLE))	496	if (tmp->flag [FLAG_IS_TURNABLE])
624	SET_ANIMATION (tmp, dir);	497	SET_ANIMATION (tmp, dir);
625		498
626	if ((tmp = insert_ob_in_map (tmp, m, op, 0)) == NULL)	499	if ((tmp = op->map->insert (tmp, x, y, op)))
627	return 1;
628
629	move_spell_effect (tmp);	500	move_spell_effect (tmp);
630		501
631	return 1;	502	return 1;
632	}	503	}
633
634
635		504
636	/*****************************************************************************	505	/*****************************************************************************
637	*	506	*
638	* Code related to rods - perhaps better located in another file?	507	* Code related to rods - perhaps better located in another file?
639	*	508	*
640	****************************************************************************/	509	****************************************************************************/
641
642	void	510	void
643	regenerate_rod (object *rod)	511	regenerate_rod (object *rod)
644	{	512	{
645	if (rod->stats.hp < rod->stats.maxhp)	513	if (rod->stats.hp < rod->stats.maxhp)
646	{	514	rod->stats.hp = min (rod->stats.maxhp, rod->stats.hp + 1 + rod->stats.maxhp / 20);
647	rod->stats.hp += 1 + rod->stats.maxhp / 10;
648
649	if (rod->stats.hp > rod->stats.maxhp)
650	rod->stats.hp = rod->stats.maxhp;
651	}
652	}	515	}
653
654		516
655	void	517	void
656	drain_rod_charge (object *rod)	518	drain_rod_charge (object *rod)
657	{	519	{
658	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);
659	}	521	}
660
661
662
663		522
664	/* this function is commonly used to find a friendly target for	523	/* this function is commonly used to find a friendly target for
665	* spells such as heal or protection or armour	524	* spells such as heal or protection or armour
666	* op is what is looking for the target (which can be a player),	525	* op is what is looking for the target (which can be a player),
667	* dir is the direction we are looking in. Return object found, or	526	* dir is the direction we are looking in. Return object found, or
668	* NULL if no good object.	527	* NULL if no good object.
669	*/	528	*/
670
671	object *	529	object *
672	find_target_for_friendly_spell (object *op, int dir)	530	find_target_for_friendly_spell (object *op, int dir)
673	{	531	{
674	object *tmp;	532	object *tmp;
675	maptile *m;
676	sint16 x, y;
677	int mflags;
678		533
679	/* I don't really get this block - if op isn't a player or rune,	534	/* I don't really get this block - if op isn't a player or rune,
680	* we then make the owner of this object the target.	535	* we then make the owner of this object the target.
681	* The owner could very well be no where near op.	536	* The owner could very well be no where near op.
682	*/	537	*/
…		…
684	{	539	{
685	tmp = op->owner;	540	tmp = op->owner;
686	/* 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
687	* to the caster.	542	* to the caster.
688	*/	543	*/
689	if (!tmp || !QUERY_FLAG (tmp, FLAG_MONSTER))	544	if (!tmp || !tmp->flag [FLAG_MONSTER])
690	tmp = op;	545	tmp = op;
691	}	546	}
692	else	547	else
693	{	548	{
694	m = op->map;	549	maptile *m = op->map;
695	x = op->x + freearr_x[dir];	550	sint16 x = op->x + DIRX (dir);
696	y = op->y + freearr_y[dir];	551	sint16 y = op->y + DIRY (dir);
697
698	mflags = get_map_flags (m, &m, x, y, &x, &y);
699
700	if (mflags & P_OUT_OF_MAP)
701	tmp = NULL;
702	else
703	{	552
704	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	553	tmp = xy_normalise (m, x, y)
705	if (tmp->type == PLAYER)	554	? m->at (x, y).player ()
706	break;	555	: 0;
707	}
708	}	556	}
		557
709	/* didn't find a player there, look in current square for a player */	558	/* didn't find a player there, look in current square for a player */
710	if (tmp == NULL)	559	if (!tmp)
711	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	560	tmp = op->ms ().player ();
712	{
713	if (tmp->type == PLAYER)
714	break;
715	}
716		561
717	return tmp;	562	return tmp;
718	}	563	}
719
720
721		564
722	/* raytrace:	565	/* raytrace:
723	* 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
724	* 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
725	* live objects.	568	* live objects.
…		…
728	* monsters/generators only. If not, the spell will hunt players only.	571	* monsters/generators only. If not, the spell will hunt players only.
729	* 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
730	* any, otherwise -1.	573	* any, otherwise -1.
731	* 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.
732	*/	575	*/
733
734	int	576	int
735	spell_find_dir (maptile *m, int x, int y, object *exclude)	577	spell_find_dir (maptile *m, int x, int y, object *exclude)
736	{	578	{
737	int i, max = SIZEOFFREE;	579	int i, max = SIZEOFFREE;
738	sint16 nx, ny;	580	sint16 nx, ny;
…		…
745	if (exclude && exclude->type)	587	if (exclude && exclude->type)
746	owner_type = exclude->type;	588	owner_type = exclude->type;
747		589
748	for (i = rndm (1, 8); i < max; i++)	590	for (i = rndm (1, 8); i < max; i++)
749	{	591	{
750	nx = x + freearr_x[i];	592	nx = x + DIRX (i);
751	ny = y + freearr_y[i];	593	ny = y + DIRY (i);
752	mp = m;	594	mp = m;
753	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	595	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
754	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))	596	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
755	continue;	597	continue;
756		598
757	tmp = GET_MAP_OB (mp, nx, ny);	599	tmp = GET_MAP_OB (mp, nx, ny);
758		600
759	while (tmp != NULL && (((owner_type == PLAYER &&	601	while (tmp != NULL && (((owner_type == PLAYER &&
760	!QUERY_FLAG (tmp, FLAG_MONSTER) && !QUERY_FLAG (tmp, FLAG_GENERATOR)) ||	602	!tmp->flag [FLAG_MONSTER] && !tmp->flag [FLAG_GENERATOR]) ||
761	(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))))
762	tmp = tmp->above;	604	tmp = tmp->above;
763		605
764	if (tmp != NULL && can_see_monsterP (m, x, y, i))	606	if (tmp != NULL && can_see_monsterP (m, x, y, i))
765	return freedir[i];	607	return freedir[i];
766	}	608	}
767	return -1; /* flag for "keep going the way you were" */	609	return -1; /* flag for "keep going the way you were" */
768	}	610	}
769
770
771		611
772	/* put_a_monster: puts a monster named monstername near by	612	/* put_a_monster: puts a monster named monstername near by
773	* op. This creates the treasures for the monsters, and	613	* op. This creates the treasures for the monsters, and
774	* also deals with multipart monsters properly.	614	* also deals with multipart monsters properly.
775	*/	615	*/
776		616	static void
777	void
778	put_a_monster (object *op, const char *monstername)	617	put_a_monster (object *op, const char *monstername)
779	{	618	{
780	object *tmp, *head = NULL, *prev = NULL;	619	object *tmp, *head = NULL, *prev = NULL;
781	archetype *at;	620	archetype *at;
782	int dir;	621	int dir;
…		…
785		624
786	if ((at = archetype::find (monstername)) == NULL)	625	if ((at = archetype::find (monstername)) == NULL)
787	return;	626	return;
788		627
789	/* find a free square nearby	628	/* find a free square nearby
790	* first we check the closest square for free squares	629	* first we check the closest square for free squares
791	*/	630	*/
792		631
793	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);
794	if (dir != -1)	633	if (dir != -1)
795	{	634	{
796	/* This is basically grabbed for generate monster. Fixed 971225 to	635	/* This is basically grabbed for generate monster. Fixed 971225 to
797	* insert multipart monsters properly	636	* insert multipart monsters properly
798	*/	637	*/
		638	//TODO: use expand_tail + ...
799	while (at != NULL)	639	while (at != NULL)
800	{	640	{
801	tmp = arch_to_object (at);	641	tmp = at->instance ();
802	tmp->x = op->x + freearr_x[dir] + at->clone.x;	642	tmp->x = op->x + DIRX (dir) + at->x;
803	tmp->y = op->y + freearr_y[dir] + at->clone.y;	643	tmp->y = op->y + DIRY (dir) + at->y;
804	tmp->map = op->map;	644	tmp->map = op->map;
805	if (head)	645	if (head)
806	{	646	{
807	tmp->head = head;	647	tmp->head = head;
808	prev->more = tmp;	648	prev->more = tmp;
809	}	649	}
		650
810	if (!head)	651	if (!head)
811	head = tmp;	652	head = tmp;
		653
812	prev = tmp;	654	prev = tmp;
		655
813	at = at->more;	656	at = (archetype *)at->more;
814	}	657	}
815		658
816	if (head->randomitems)	659	if (head->randomitems)
817	create_treasure (head->randomitems, head, GT_INVISIBLE, op->map->difficulty, 0);	660	create_treasure (head->randomitems, head, GT_INVISIBLE, op->map->difficulty, 0);
818		661
819	insert_ob_in_map (head, op->map, op, 0);	662	insert_ob_in_map (head, op->map, op, 0);
820		663
821	/* thought it'd be cool to insert a burnout, too. */	664	/* thought it'd be cool to insert a burnout, too. */
822	tmp = get_archetype ("burnout");	665	op->map->insert (archetype::get (shstr_burnout), op->x + DIRX (dir), op->y + DIRY (dir), op);
823	tmp->map = op->map;
824	tmp->x = op->x + freearr_x[dir];
825	tmp->y = op->y + freearr_y[dir];
826	insert_ob_in_map (tmp, op->map, op, 0);
827	}	666	}
828	}	667	}
829		668
830	/* peterm: function which summons hostile monsters and	669	/* peterm: function which summons hostile monsters and
831	* places them in nearby squares.	670	* places them in nearby squares.
…		…
838	* 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
839	* 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
840	* never used. This is however used by various failures on the	679	* never used. This is however used by various failures on the
841	* players part (alchemy, reincarnation, etc)	680	* players part (alchemy, reincarnation, etc)
842	*/	681	*/
843
844	int	682	int
845	summon_hostile_monsters (object *op, int n, const char *monstername)	683	summon_hostile_monsters (object *op, int n, const char *monstername)
846	{	684	{
847	int i;	685	int i;
848		686
…		…
858	{	696	{
859	int attacktype;	697	int attacktype;
860	int face;	698	int face;
861	} ATTACKS[22] =	699	} ATTACKS[22] =
862	{	700	{
863	{
864	AT_PHYSICAL, 0},	701	{ AT_PHYSICAL, 0},
865	{
866	AT_PHYSICAL, 0}, /*face = explosion */	702	{ AT_PHYSICAL, 0}, /*face = explosion */
867	{
868	AT_PHYSICAL, 0},	703	{ AT_PHYSICAL, 0},
869	{
870	AT_MAGIC, 1},	704	{ AT_MAGIC, 1},
871	{
872	AT_MAGIC, 1}, /* face = last-burnout */	705	{ AT_MAGIC, 1}, /* face = last-burnout */
873	{
874	AT_MAGIC, 1},	706	{ AT_MAGIC, 1},
875	{
876	AT_FIRE, 2},	707	{ AT_FIRE, 2},
877	{
878	AT_FIRE, 2}, /* face = fire.... */	708	{ AT_FIRE, 2}, /* face = fire.... */
879	{
880	AT_FIRE, 2},	709	{ AT_FIRE, 2},
881	{
882	AT_ELECTRICITY, 3},	710	{ AT_ELECTRICITY, 3},
883	{
884	AT_ELECTRICITY, 3}, /* ball_lightning */	711	{ AT_ELECTRICITY, 3}, /* ball_lightning */
885	{
886	AT_ELECTRICITY, 3},	712	{ AT_ELECTRICITY, 3},
887	{
888	AT_COLD, 4},	713	{ AT_COLD, 4},
889	{
890	AT_COLD, 4}, /* face=icestorm */	714	{ AT_COLD, 4}, /* face=icestorm */
891	{
892	AT_COLD, 4},	715	{ AT_COLD, 4},
893	{
894	AT_CONFUSION, 5},	716	{ AT_CONFUSION, 5},
895	{
896	AT_POISON, 7},	717	{ AT_POISON, 7},
897	{
898	AT_POISON, 7}, /* face = acid sphere. generator */	718	{ AT_POISON, 7}, /* face = acid sphere. generator */
899	{
900	AT_POISON, 7}, /* poisoncloud face */	719	{ AT_POISON, 7}, /* poisoncloud face */
901	{
902	AT_SLOW, 8},	720	{ AT_SLOW, 8},
903	{
904	AT_PARALYZE, 9},	721	{ AT_PARALYZE, 9},
905	{
906	AT_FEAR, 10}};	722	{ AT_FEAR, 10},
907		723	};
908
909		724
910	/* shuffle_attack: peterm	725	/* shuffle_attack: peterm
911	* This routine shuffles the attack of op to one of the	726	* This routine shuffles the attack of op to one of the
912	* ones in the list. It does this at random. It also	727	* ones in the list. It does this at random. It also
913	* chooses a face appropriate to the attack that is	728	* chooses a face appropriate to the attack that is
914	* being committed by that square at the moment.	729	* being committed by that square at the moment.
915	* right now it's being used by color spray and create pool of	730	* right now it's being used by color spray and create pool of
916	* chaos.	731	* chaos.
917	* This could really be a better implementation - the	732	* This could really be a better implementation - the
918	* faces and attacktypes above are hardcoded, which is never	733	* faces and attacktypes above are hardcoded, which is never
919	* good. The faces refer to faces in the animation sequence.	734	* good. The faces refer to faces in the animation sequence.
…		…
936	{	751	{
937	SET_ANIMATION (op, ATTACKS[i].face);	752	SET_ANIMATION (op, ATTACKS[i].face);
938	}	753	}
939	}	754	}
940		755
941
942	/* prayer_failure: This is called when a player fails	756	/* prayer_failure: This is called when a player fails
943	* at casting a prayer.	757	* at casting a prayer.
944	* op is the player.	758	* op is the player.
945	* failure is basically how much grace they had.	759	* failure is basically how much grace they had.
946	* power is how much grace the spell would normally take to cast.	760	* power is how much grace the spell would normally take to cast.
947	*/	761	*/
948		762
949	void	763	#define HINT_GRACE " H<Make sure you always have enough grace points for your prayers.>"
		764
		765	static void
950	prayer_failure (object *op, int failure, int power)	766	prayer_failure (object *op, int failure, int power)
951	{	767	{
952	const char *godname;	768	const char *godname;
953	object *tmp;	769	object *tmp;
954		770
955	if (!strcmp ((godname = determine_god (op)), "none"))	771	if (!strcmp ((godname = determine_god (op)), "none"))
956	godname = "Your spirit";	772	godname = "Your spirit";
957		773
958	if (failure <= -20 && failure > -40) /* wonder */	774	if (failure <= -20 && failure > -40) /* wonder */
959	{	775	{
960	new_draw_info_format (NDI_UNIQUE, 0, op, "%s gives a sign to renew your faith.", godname);	776	op->failmsgf ("%s gives a sign to renew your faith." HINT_GRACE, godname);
961	tmp = get_archetype (SPELL_WONDER);	777	tmp = archetype::get (SPELL_WONDER);
962	cast_cone (op, op, 0, tmp);	778	cast_cone (op, op, 0, tmp);
963	tmp->destroy ();	779	tmp->destroy ();
964	}	780	}
965		781
966	else if (failure <= -40 && failure > -60) /* confusion */	782	else if (failure <= -40 && failure > -60) /* confusion */
967	{	783	{
968	new_draw_info (NDI_UNIQUE, 0, op, "Your diety touches your mind!");	784	op->failmsg ("Your diety touches your mind!" HINT_GRACE);
969	confuse_player (op, op, 99);	785	confuse_player (op, op, 99);
970	}	786	}
971	else if (failure <= -60 && failure > -150) /* paralysis */	787	else if (failure <= -60 && failure > -150) /* paralysis */
972	{	788	{
973	new_draw_info_format (NDI_UNIQUE, 0, op, "%s requires you to pray NOW.", godname);	789	op->failmsgf ("%s requires you to pray NOW. "
974	new_draw_info (NDI_UNIQUE, 0, op, "You comply, ignoring all else.");	790	"You comply, ignoring all else." HINT_GRACE,
		791	godname);
975	paralyze_player (op, op, 99);	792	paralyze_player (op, op, 99);
976	}	793	}
977	else if (failure <= -150) /* blast the immediate area */	794	else if (failure <= -150) /* blast the immediate area */
978	{	795	{
979	tmp = get_archetype (GOD_POWER);	796	tmp = archetype::get (GOD_POWER);
980	new_draw_info_format (NDI_UNIQUE, 0, op, "%s smites you!", godname);	797	op->failmsgf ("%s smites you!" HINT_GRACE, godname);
981	cast_magic_storm (op, tmp, power);	798	cast_magic_storm (op, tmp, power);
982	}	799	}
983	}	800	}
984		801
985	/*	802	/*
986	* spell_failure() handles the various effects for differing degrees	803	* spell_failure() handles the various effects for differing degrees
987	* of failure badness.	804	* of failure badness.
988	* op is the player that failed.	805	* op is the player that failed.
989	* failure is a random value of how badly you failed.	806	* failure is a random value of how badly you failed.
990	* power is how many spellpoints you'd normally need for the spell.	807	* power is how many spellpoints you'd normally need for the spell.
991	* skill is the skill you'd need to cast the spell.	808	* skill is the skill you'd need to cast the spell.
992	*/	809	*/
993
994	void	810	void
995	spell_failure (object *op, int failure, int power, object *skill)	811	spell_failure (object *op, int failure, int power, object *skill)
996	{	812	{
997	object *tmp;	813	object *tmp;
998		814
999	if (settings.spell_failure_effects == FALSE)	815	if (settings.spell_failure_effects == FALSE)
1000	return;	816	return;
1001		817
1002	if (failure <= -20 && failure > -40) /* wonder */	818	if (failure <= -20 && failure > -40) /* wonder */
1003	{	819	{
1004	new_draw_info (NDI_UNIQUE, 0, op, "Your spell causes an unexpected effect.");	820	op->failmsg ("Your spell causes an unexpected effect.");
1005	tmp = get_archetype (SPELL_WONDER);	821	tmp = archetype::get (SPELL_WONDER);
1006	cast_cone (op, op, 0, tmp);	822	cast_cone (op, op, 0, tmp);
1007	tmp->destroy ();	823	tmp->destroy ();
1008	}	824	}
1009		825
1010	else if (failure <= -40 && failure > -60) /* confusion */	826	else if (failure <= -40 && failure > -60) /* confusion */
1011	{	827	{
1012	new_draw_info (NDI_UNIQUE, 0, op, "Your magic recoils on you, making you confused!");	828	op->failmsg ("Your magic recoils on you, making you confused!");
1013	confuse_player (op, op, 99);	829	confuse_player (op, op, 99);
1014	}	830	}
1015	else if (failure <= -60 && failure > -80) /* paralysis */	831	else if (failure <= -60 && failure > -80) /* paralysis */
1016	{	832	{
1017	new_draw_info (NDI_UNIQUE, 0, op, "Your magic stuns you!");	833	op->failmsg ("Your magic stuns you!");
1018	paralyze_player (op, op, 99);	834	paralyze_player (op, op, 99);
1019	}	835	}
1020	else if (failure <= -80) /* blast the immediate area */	836	else if (failure <= -80) /* blast the immediate area */
1021	{	837	{
1022	object *tmp;	838	object *tmp;
1023		839
1024	/* Safety check to make sure we don't get any mana storms in scorn */	840	/* Safety check to make sure we don't get any mana storms in scorn */
1025	if (get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_NO_MAGIC)	841	if (get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_NO_MAGIC)
1026	{	842	{
1027	new_draw_info (NDI_UNIQUE, 0, op, "The magic warps and you are turned inside out!");	843	op->failmsg ("The magic warps and you are turned inside out!");
1028	hit_player (op, 9998, op, AT_INTERNAL, 1);	844	hit_player (op, 9998, op, AT_INTERNAL, 1);
1029		845
1030	}	846	}
1031	else	847	else
1032	{	848	{
1033	new_draw_info (NDI_UNIQUE, 0, op, "You lose control of the mana! The uncontrolled magic blasts you!");	849	op->failmsg ("You lose control of the mana! The uncontrolled magic blasts you!");
1034	tmp = get_archetype (LOOSE_MANA);	850	tmp = archetype::get (LOOSE_MANA);
1035	tmp->level = skill->level;	851	tmp->level = skill->level;
1036	tmp->x = op->x;
1037	tmp->y = op->y;
1038		852
1039	/* increase the area of destruction a little for more powerful spells */	853	/* increase the area of destruction a little for more powerful spells */
1040	tmp->range += isqrt (power);	854	tmp->range += isqrt (power);
1041		855
1042	if (power > 25)	856	if (power > 25)
1043	tmp->stats.dam = 25 + isqrt (power);	857	tmp->stats.dam = 25 + isqrt (power);
1044	else	858	else
1045	tmp->stats.dam = power; /* nasty recoils! */	859	tmp->stats.dam = power; /* nasty recoils! */
1046		860
1047	tmp->stats.maxhp = tmp->count;	861	tmp->stats.maxhp = tmp->count;
1048	insert_ob_in_map (tmp, op->map, NULL, 0);	862
		863	tmp->insert_at (op);
1049	}	864	}
1050	}	865	}
1051	}	866	}
1052		867
1053	int	868	static int
1054	cast_party_spell (object *op, object *caster, int dir, object *spell_ob, char *stringarg)	869	cast_party_spell (object *op, object *caster, int dir, object *spell_ob, char *spellparam)
1055	{	870	{
1056	int success;
1057	player *pl;
1058	object *spell;
1059
1060	if (!spell_ob->other_arch)	871	if (!spell_ob->other_arch)
1061	{	872	{
1062	LOG (llevError, "cast_party_spell: empty other arch\n");	873	LOG (llevError, "cast_party_spell: empty other arch\n");
1063	return 0;	874	return 0;
1064	}	875	}
1065	spell = arch_to_object (spell_ob->other_arch);	876
		877	object *spell = spell_ob->other_arch->instance ();
1066		878
1067	/* Always cast spell on caster */	879	/* Always cast spell on caster */
1068	success = cast_spell (op, caster, dir, spell, stringarg);	880	int success = cast_spell (op, caster, dir, spell, spellparam);
1069		881
1070	if (caster->contr->party == NULL)	882	if (!op->contr || !op->contr->party)
1071	{	883	{
1072	spell->remove ();	884	spell->remove ();
1073	return success;	885	return success;
1074	}	886	}
1075	for (pl = first_player; pl != NULL; pl = pl->next)	887
1076	if ((pl->ob->contr->party == caster->contr->party) && (on_same_map (pl->ob, caster)))	888	for_all_players (pl)
1077	{	889	if ((pl->ob->contr->party == op->contr->party)
		890	&& on_same_map (pl->ob, op)
		891	&& pl->ob != op)
1078	cast_spell (pl->ob, caster, pl->ob->facing, spell, stringarg);	892	cast_spell (pl->ob, caster, pl->ob->facing, spell, spellparam);
1079	}	893
1080	spell->remove ();	894	spell->remove ();
1081	return success;	895	return success;
1082	}	896	}
1083		897
1084	/* This is where the main dispatch when someone casts a spell.	898	/* This is where the main dispatch when someone casts a spell.
…		…
1089	* same as op.	903	* same as op.
1090	* dir is the direction to cast in. Note in some cases, if the spell	904	* dir is the direction to cast in. Note in some cases, if the spell
1091	* is self only, dir really doesn't make a difference.	905	* is self only, dir really doesn't make a difference.
1092	* spell_ob is the spell object that is being cast. From that,	906	* spell_ob is the spell object that is being cast. From that,
1093	* we can determine what to do.	907	* we can determine what to do.
1094	* stringarg is any options that are being used. It can be NULL. Almost	908	* spellparam is any options that are being used. It can be NULL. Almost
1095	* certainly, only players will set it. It is basically used as optional	909	* certainly, only players will set it. It is basically used as optional
1096	* parameters to a spell (eg, item to create, information for marking runes,	910	* parameters to a spell (eg, item to create, information for marking runes,
1097	* etc.	911	* etc.
1098	* returns 1 on successful cast, or 0 on error. These values should really	912	* returns 1 on successful cast, or 0 on error. These values should really
1099	* be swapped, so that 0 is successful, and non zero is failure, with a code	913	* be swapped, so that 0 is successful, and non zero is failure, with a code
…		…
1106	*	920	*
1107	* if it is a player casting the spell (op->type == PLAYER, op == caster),	921	* if it is a player casting the spell (op->type == PLAYER, op == caster),
1108	* this function will decrease the mana/grace appropriately. For other	922	* this function will decrease the mana/grace appropriately. For other
1109	* objects, the caller should do what it considers appropriate.	923	* objects, the caller should do what it considers appropriate.
1110	*/	924	*/
1111
1112	int	925	int
1113	cast_spell (object *op, object *caster, int dir, object *spell_ob, char *stringarg)	926	cast_spell (object *op, object *caster, int dir, object *spell_ob, char *spellparam)
1114	{	927	{
1115	const char *godname;	928	const char *godname;
1116	int success = 0, mflags, cast_level = 0, old_shoottype;	929	int success = 0;
1117	object *skill = NULL;
1118		930
1119	old_shoottype = op->contr ? op->contr->shoottype : 0;	931	// make sure spells always take a while, so a) we don't flood the
		932	// user with messages and b) too many failures can be harmful (smiting).
		933	op->speed_left -= 4 * op->speed; // ~0.5s on failure
1120		934
1121	if (!spell_ob)	935	if (!spell_ob)
1122	{	936	{
1123	LOG (llevError, "cast_spell: null spell object passed\n");	937	LOG (llevError, "cast_spell: null spell object passed\n");
1124	return 0;	938	return 0;
…		…
1132	{	946	{
1133	LOG (llevError, "cast_spell: null caster object passed\n");	947	LOG (llevError, "cast_spell: null caster object passed\n");
1134	return 0;	948	return 0;
1135	}	949	}
1136		950
1137	/* if caster is a spell casting object, this normally shouldn't be	951	/* if caster is a spell casting object, this normally shouldn't be
1138	* an issue, because they don't have any spellpaths set up.	952	* an issue, because they don't have any spellpaths set up.
1139	*/	953	*/
1140	if (caster->path_denied & spell_ob->path_attuned && !QUERY_FLAG (caster, FLAG_WIZCAST))	954	if (caster->path_denied & spell_ob->path_attuned && !caster->flag [FLAG_WIZCAST])
1141	{	955	{
1142	new_draw_info (NDI_UNIQUE, 0, op, "That spell path is denied to you.");	956	op->failmsg ("That spell path is denied to you.");
1143	return 0;	957	return 0;
1144	}	958	}
1145		959
		960	object *skill = 0;
		961
1146	/* if it is a player casting the spell, and they are really casting it	962	/* if it is a player casting the spell, and they are really casting it
1147	* (vs it coming from a wand, scroll, or whatever else), do some	963	* (vs it coming from a wand, scroll, or whatever else), do some
1148	* checks. We let monsters do special things - eg, they	964	* checks. We let monsters do special things - eg, they
1149	* don't need the skill, bypass level checks, etc. The monster function	965	* don't need the SKILL, BYpass level checks, etc. The monster function
1150	* should take care of that.	966	* should take care of that.
1151	* Remove the wiz check here and move it further down - some spells	967	* Remove the wiz check here and move it further down - some spells
1152	* need to have the right skill pointer passed, so we need to	968	* need to have the right skill pointer passed, so we need to
1153	* at least process that code.	969	* at least process that code.
1154	*/	970	*/
1155	if (op->type == PLAYER && op == caster)	971	if (op->type == PLAYER && op == caster)
1156	{	972	{
1157	cast_level = caster_level (caster, spell_ob);
1158	if (spell_ob->skill)	973	if (spell_ob->skill)
1159	{	974	{
1160	skill = find_skill_by_name (op, spell_ob->skill);	975	skill = find_skill_by_name (op, spell_ob->skill);
		976
1161	if (!skill)	977	if (!skill)
1162	{	978	{
1163	new_draw_info_format (NDI_UNIQUE, 0, op, "You need the skill %s to cast %s.", &spell_ob->skill, &spell_ob->name);	979	op->failmsgf ("You need the %s skill to cast %s! "
		980	"H<You either need to learn the skill via a skill scroll "
		981	"or you need to wear a talisman, holy symbol or another skill tool.>",
		982	&spell_ob->skill, &spell_ob->name);
1164	return 0;	983	return 0;
1165	}	984	}
1166	if (min_casting_level (op, spell_ob) > cast_level && !QUERY_FLAG (op, FLAG_WIZ))	985
		986	const char *msg = "";
		987
		988	int caster_level = skill->level;
		989
		990	if (op->path_attuned & spell_ob->path_attuned)
1167	{	991	{
1168	new_draw_info (NDI_UNIQUE, 0, op, "You lack enough skill to cast that spell.");	992	caster_level += min (caster_level, ATTUNE_REPELL);
		993	msg = " (attuned)";
		994	}
		995
		996	if (op->path_repelled & spell_ob->path_attuned)
		997	{
		998	caster_level -= ATTUNE_REPELL; // negative is ok
		999	msg = " (repelled)";
		1000	}
		1001
		1002	if (spell_ob->level > caster_level)
		1003	{
		1004	op->failmsgf ("You lack enough skill to cast that spell! "
		1005	"H<Your effective cast level is %d%s, but level %d is required.>",
		1006	caster_level, msg, spell_ob->level);
		1007	if (!op->is_wiz ())
1169	return 0;	1008	return 0;
1170	}	1009	}
1171	}	1010	}
		1011
1172	/* If the caster is the wiz, they don't ever fail, and don't have	1012	/* If the caster is the wiz, they don't ever fail, and don't have
1173	* to have sufficient grace/mana.	1013	* to have sufficient grace/mana.
1174	*/	1014	*/
1175	if (!QUERY_FLAG (op, FLAG_WIZ))	1015	if (!op->flag [FLAG_WIZCAST])
1176	{	1016	{
1177	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&	1017	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&
1178	SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) > op->stats.sp)	1018	SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) > op->stats.sp)
1179	{	1019	{
1180	new_draw_info (NDI_UNIQUE, 0, op, "You don't have enough mana.");	1020	op->failmsg ("You don't have enough mana!");
1181	return 0;	1021	return 0;
1182	}	1022	}
		1023
1183	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) &&	1024	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) &&
1184	SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) > op->stats.grace)	1025	SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) > op->stats.grace)
1185	{	1026	{
1186	if (random_roll (0, op->stats.Wis - 1, op, PREFER_HIGH) + op->stats.grace -	1027	if (random_roll (0, op->stats.Wis - 1, op, PREFER_HIGH) + op->stats.grace -
1187	10 * SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) / op->stats.maxgrace > 0)	1028	10 * SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) / op->stats.maxgrace > 0)
1188	{
1189	new_draw_info_format (NDI_UNIQUE, 0, op, "%s grants your prayer, though you are unworthy.", godname);	1029	op->statusmsg (format ("%s grants your prayer, though you are unworthy.", godname));
1190	}
1191	else	1030	else
1192	{	1031	{
1193	prayer_failure (op, op->stats.grace, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) - op->stats.grace);	1032	prayer_failure (op, op->stats.grace, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) - op->stats.grace);
1194	new_draw_info_format (NDI_UNIQUE, 0, op, "%s ignores your prayer.", godname);	1033	op->failmsgf ("%s ignores your prayer.", godname);
1195	return 0;	1034	return 0;
1196	}	1035	}
1197	}	1036	}
1198		1037
1199	/* player/monster is trying to cast the spell. might fumble it */	1038	/* player/monster is trying to cast the spell. might fumble it */
1200	if (spell_ob->stats.grace && random_roll (0, 99, op, PREFER_HIGH) <	1039	if (spell_ob->stats.grace && random_roll (0, 99, op, PREFER_HIGH) <
1201	(spell_ob->level / (float) MAX (1, op->level) * cleric_chance[op->stats.Wis]))	1040	(spell_ob->level / (float) max (1, op->level) * cleric_chance[op->stats.Wis]))
1202	{	1041	{
1203	play_sound_player_only (op->contr, SOUND_FUMBLE_SPELL, 0, 0);	1042	op->contr->play_sound (sound_find ("fumble_spell"));
1204	new_draw_info (NDI_UNIQUE, 0, op, "You fumble the spell.");	1043	op->failmsg ("You fumble the prayer.");
1205	if (settings.casting_time == TRUE)	1044
1206	{
1207	op->casting_time = -1;
1208	}
1209	op->stats.grace -= random_roll (1, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE), op, PREFER_LOW);	1045	op->stats.grace -= random_roll (1, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE), op, PREFER_LOW);
1210	return 0;	1046	return 0;
1211	}	1047	}
1212	else if (spell_ob->stats.sp)	1048	else if (spell_ob->stats.sp)
1213	{	1049	{
1214	int failure = random_roll (0, 199, op, PREFER_HIGH) - op->contr->encumbrance + op->level - spell_ob->level + 35;	1050	int failure = random_roll (0, 199, op, PREFER_HIGH) - op->contr->encumbrance + op->level - spell_ob->level + 35;
1215		1051
1216	if (failure < 0)	1052	if (failure < 0)
1217	{	1053	{
1218	new_draw_info (NDI_UNIQUE, 0, op, "You bungle the spell because you have too much heavy equipment in use.");	1054	op->failmsg ("You bungle the spell because you have too much heavy equipment in use.");
1219	if (settings.spell_failure_effects == TRUE)	1055	if (settings.spell_failure_effects == TRUE)
1220	spell_failure (op, failure, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), skill);	1056	spell_failure (op, failure, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), skill);
1221	op->contr->shoottype = (rangetype) old_shoottype;	1057
1222	op->stats.sp -= random_roll (0, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), op, PREFER_LOW);	1058	op->stats.sp -= random_roll (0, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), op, PREFER_LOW);
1223	return 0;	1059	return 0;
1224	}	1060	}
1225	}	1061	}
1226	}	1062	}
1227	}	1063	}
1228		1064
1229	mflags = get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL);	1065	int mflags = op->ms ().flags ();
1230		1066
1231	/* See if we can cast a spell here. If the caster and op are	1067	/* See if we can cast a spell here. If the caster and op are
1232	* not alive, then this would mean that the mapmaker put the	1068	* not alive, then this would mean that the mapmaker put the
1233	* objects on the space - presume that they know what they are	1069	* objects on the space - presume that they know what they are
1234	* doing.	1070	* doing.
1235	*/	1071	*/
1236		1072
1237	if ((mflags & P_SAFE) && !QUERY_FLAG (op, FLAG_WIZCAST)) // There is _ABSOLUTELY_ no magic allowed here (except wizards :-)!	1073	if ((mflags & P_SAFE) && !op->flag [FLAG_WIZCAST]) // There is _ABSOLUTELY_ no magic allowed here (except wizards :-)!
1238	{	1074	{
		1075	op->speed_left -= 2 * op->speed; // freeze for two ticks, so we don't flood
1239	new_draw_info (NDI_UNIQUE, 0, op, "This ground is sacred! The gods prevent any magical effects done by you here!.");	1076	op->failmsg ("This ground is sacred! The gods prevent any magical effects done by you here!");
1240	return 0;	1077	return 0;
1241	}	1078	}
1242		1079
1243	if ((spell_ob->type == SPELL)	1080	if ((spell_ob->type == SPELL)
1244	&& (caster->type != POTION)	1081	&& (caster->type != POTION)
1245	&& !QUERY_FLAG (op, FLAG_WIZCAST)	1082	&& !op->flag [FLAG_WIZCAST]
1246	&& (QUERY_FLAG (caster, FLAG_ALIVE)	1083	&& (caster->flag [FLAG_ALIVE]
1247	|| QUERY_FLAG (op, FLAG_ALIVE))	1084	|| op->flag [FLAG_ALIVE])
1248	&& (((mflags & P_NO_MAGIC) && spell_ob->stats.sp) || ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)))	1085	&& (((mflags & P_NO_MAGIC) && spell_ob->stats.sp) || ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)))
1249	{	1086	{
1250	if (op->type != PLAYER)	1087	if (op->type != PLAYER)
1251	return 0;	1088	return 0;
1252		1089
1253	if ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)	1090	if ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)
1254	new_draw_info_format (NDI_UNIQUE, 0, op, "This ground is unholy! %s ignores you.", godname);	1091	op->failmsgf ("This ground is unholy! %s ignores you.", godname);
1255	else	1092	else if (object *item = op->contr->ranged_ob)
1256	switch (op->contr->shoottype)
1257	{	1093	{
1258	case range_magic:	1094	if (item->type == SPELL)
1259	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks your spellcasting.");	1095	op->failmsg ("Something blocks your spellcasting.");
1260	break;	1096	else if (item->type == SCROLL)
1261	case range_misc:	1097	op->failmsg ("Something blocks the magic of your scroll.");
1262	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks the magic of your item.");
1263	break;
1264	case range_golem:
1265	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks the magic of your scroll.");
1266	break;
1267	default:
1268	break;
1269	}
1270	return 0;
1271	}
1272
1273	if (caster == op && settings.casting_time == TRUE && spell_ob->type == SPELL)
1274	{
1275	if (op->casting_time == -1)
1276	{ /* begin the casting */
1277	op->casting_time = (sint16) (spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob));
1278	op->spell = spell_ob;
1279	/* put the stringarg into the object struct so that when the
1280	* spell is actually cast, it knows about the stringarg.
1281	* necessary for the invoke command spells.
1282	*/
1283	if (stringarg)
1284	{
1285	op->spellarg = strdup (stringarg);
1286	}
1287	else	1098	else
1288	op->spellarg = NULL;	1099	op->failmsg ("Something blocks the magic of your item.");
1289	return 0;
1290	}
1291	else if (op->casting_time != 0)
1292	{
1293	if (op->type == PLAYER)
1294	new_draw_info (NDI_UNIQUE, 0, op, "You are casting!");
1295	return 0;
1296	}	1100	}
1297	else	1101	else
1298	{ /* casting_time == 0 */	1102	op->failmsg ("Something blocks the spell!");
1299	op->casting_time = -1;	1103
1300	spell_ob = op->spell;	1104	return 0;
1301	stringarg = op->spellarg;
1302	}
1303	}
1304	else
1305	{	1105	}
		1106
		1107	// undo the flood protection from earlier
		1108	op->speed_left += 4 * op->speed; // ~0.5s on failure
		1109
1306	/* Take into account how long it takes to cast the spell.	1110	/* Take into account how long it takes to cast the spell.
1307	* if the player is casting it, then we use the time in	1111	* if the player is casting it, then we use the time in
1308	* the spell object. If it is a spell object, have it	1112	* the spell object. If it is a spell object, have it
1309	* take two ticks. Things that cast spells on the players	1113	* take two ticks. Things that cast spells on the players
1310	* behalf (eg, altars, and whatever else) shouldn't cost	1114	* behalf (eg, altars, and whatever else) shouldn't cost
1311	* the player any time.	1115	* the player any time.
1312	* Ignore casting time for firewalls	1116	* Ignore casting time for firewalls
		1117	*/
		1118	if (caster == op && caster->type != FIREWALL)
		1119	{
		1120	op->speed_left -= spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * op->speed;
		1121	/* Other portions of the code may also decrement the speed of the player, so
		1122	* put a lower limit so that the player isn't stuck here too long
1313	*/	1123	*/
1314	if (caster == op && caster->type != FIREWALL)
1315	{
1316	op->speed_left -= spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * FABS (op->speed);
1317	/* Other portions of the code may also decrement the speed of the player, so
1318	* put a lower limit so that the player isn't stuck here too long
1319	*/
1320	if ((spell_ob->casting_time > 0) && op->speed_left < -spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * FABS (op->speed))	1124	if ((spell_ob->casting_time > 0) && op->speed_left < -spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * op->speed)
1321	op->speed_left = -spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * FABS (op->speed);	1125	op->speed_left = -spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * op->speed;
1322	}	1126	}
1323	else if (caster->type == WAND || caster->type == HORN || caster->type == ROD || caster->type == POTION || caster->type == SCROLL)	1127	else if (caster->type == WAND || caster->type == HORN || caster->type == ROD || caster->type == POTION || caster->type == SCROLL)
1324	{
1325	op->speed_left -= 2 * FABS (op->speed);	1128	op->speed_left -= 2 * op->speed;
1326	}
1327	}
1328		1129
1329	if (op->type == PLAYER && op == caster)	1130	if (op->type == PLAYER && op == caster)
1330	{	1131	{
1331	op->stats.grace -= SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE);	1132	op->stats.grace -= SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE);
1332	op->stats.sp -= SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA);	1133	op->stats.sp -= SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA);
…		…
1337	* object requires.	1138	* object requires.
1338	*/	1139	*/
1339	if (op != caster && !skill && caster->skill)	1140	if (op != caster && !skill && caster->skill)
1340	{	1141	{
1341	skill = find_skill_by_name (op, caster->skill);	1142	skill = find_skill_by_name (op, caster->skill);
		1143
1342	if (!skill)	1144	if (!skill)
1343	{	1145	{
1344	new_draw_info_format (NDI_UNIQUE, 0, op, "You lack the skill %s to use the %s", &caster->skill, query_name (caster));	1146	op->failmsgf ("You lack the %s skill, which is required to use the %s!", &caster->skill, query_name (caster));
1345	return 0;	1147	return 0;
1346	}	1148	}
1347	change_skill (op, skill, 0); /* needed for proper exp credit */
1348	}	1149	}
		1150
		1151	if (INVOKE_OBJECT (CAST_SPELL, spell_ob, ARG_OBJECT (op), ARG_OBJECT (caster), ARG_INT (dir), ARG_STRING (spellparam)))
		1152	return RESULT_INT (0);
		1153
		1154	// temporaroly replace chosen_skill by skill, we assume skill *could* be applied,
		1155	// at least temporarily, which might not be true due to slot restrictions, but hey
		1156	// invoke requires it basically.
		1157
		1158	object *chosen_skill = op->chosen_skill;
		1159	op->chosen_skill = skill;
1349		1160
1350	switch (spell_ob->subtype)	1161	switch (spell_ob->subtype)
1351	{	1162	{
1352	/* The order of case statements is same as the order they show up	1163	/* The order of case statements is same as the order they show up
1353	* in in spells.h.	1164	* in spells.h.
1354	*/	1165	*/
1355	case SP_RAISE_DEAD:	1166	case SP_RAISE_DEAD:
1356	success = cast_raise_dead_spell (op, caster, spell_ob, dir, stringarg);	1167	success = cast_raise_dead_spell (op, caster, spell_ob, dir, spellparam);
1357	break;	1168	break;
1358		1169
1359	case SP_RUNE:	1170	case SP_RUNE:
1360	success = write_rune (op, caster, spell_ob, dir, stringarg);	1171	success = write_rune (op, caster, spell_ob, dir, spellparam);
1361	break;	1172	break;
1362		1173
1363	case SP_MAKE_MARK:	1174	case SP_MAKE_MARK:
1364	success = write_mark (op, spell_ob, stringarg);	1175	success = write_mark (op, spell_ob, spellparam);
1365	break;	1176	break;
1366		1177
1367	case SP_BOLT:	1178	case SP_BOLT:
1368	success = fire_bolt (op, caster, dir, spell_ob, skill);	1179	success = fire_bolt (op, caster, dir, spell_ob, skill);
1369	break;	1180	break;
…		…
1387	case SP_SMITE:	1198	case SP_SMITE:
1388	success = cast_smite_spell (op, caster, dir, spell_ob);	1199	success = cast_smite_spell (op, caster, dir, spell_ob);
1389	break;	1200	break;
1390		1201
1391	case SP_MAGIC_MISSILE:	1202	case SP_MAGIC_MISSILE:
1392	success = fire_arch_from_position (op, caster, op->x + freearr_x[dir], op->y + freearr_y[dir], dir, spell_ob);	1203	success = fire_arch_from_position (op, caster, op->x, op->y, dir, spell_ob);
1393	break;	1204	break;
1394		1205
1395	case SP_SUMMON_GOLEM:	1206	case SP_SUMMON_GOLEM:
1396	success = summon_golem (op, caster, dir, spell_ob);	1207	success = summon_golem (op, caster, dir, spell_ob);
1397	old_shoottype = range_golem;
1398	break;	1208	break;
1399		1209
1400	case SP_DIMENSION_DOOR:	1210	case SP_DIMENSION_DOOR:
1401	/* dimension door needs the actual caster, because that is what is	1211	/* dimension door needs the actual caster, because that is what is
1402	* moved.	1212	* moved.
1403	*/	1213	*/
1404	success = dimension_door (op, caster, spell_ob, dir);	1214	success = dimension_door (op, caster, spell_ob, dir, spellparam);
1405	break;	1215	break;
1406		1216
1407	case SP_MAGIC_MAPPING:	1217	case SP_MAGIC_MAPPING:
1408	if (op->type == PLAYER)	1218	if (op->type == PLAYER)
1409	{	1219	{
…		…
1442	case SP_HEALING:	1252	case SP_HEALING:
1443	success = cast_heal (op, caster, spell_ob, dir);	1253	success = cast_heal (op, caster, spell_ob, dir);
1444	break;	1254	break;
1445		1255
1446	case SP_CREATE_FOOD:	1256	case SP_CREATE_FOOD:
1447	success = cast_create_food (op, caster, spell_ob, dir, stringarg);	1257	success = cast_create_food (op, caster, spell_ob, dir, spellparam);
1448	break;	1258	break;
1449		1259
1450	case SP_EARTH_TO_DUST:	1260	case SP_EARTH_TO_DUST:
1451	success = cast_earth_to_dust (op, caster, spell_ob);	1261	success = cast_earth_to_dust (op, caster, spell_ob);
1452	break;	1262	break;
…		…
1462	case SP_CURSE:	1272	case SP_CURSE:
1463	success = cast_curse (op, caster, spell_ob, dir);	1273	success = cast_curse (op, caster, spell_ob, dir);
1464	break;	1274	break;
1465		1275
1466	case SP_SUMMON_MONSTER:	1276	case SP_SUMMON_MONSTER:
1467	success = summon_object (op, caster, spell_ob, dir, stringarg);	1277	success = summon_object (op, caster, spell_ob, dir, spellparam);
1468	break;	1278	break;
1469		1279
1470	case SP_CHARGING:	1280	case SP_CHARGING:
1471	success = recharge (op, caster, spell_ob);	1281	success = recharge (op, caster, spell_ob);
1472	break;	1282	break;
…		…
1475	#ifdef NO_POLYMORPH	1285	#ifdef NO_POLYMORPH
1476	/* Not great, but at least provide feedback so if players do have	1286	/* Not great, but at least provide feedback so if players do have
1477	* polymorph (ie, find it as a preset item or left over from before	1287	* polymorph (ie, find it as a preset item or left over from before
1478	* it was disabled), they get some feedback.	1288	* it was disabled), they get some feedback.
1479	*/	1289	*/
1480	new_draw_info (NDI_UNIQUE, 0, op, "The spell fizzles");	1290	op->failmsg ("The spell fizzles!");
1481	success = 0;	1291	success = 0;
1482	#else	1292	#else
1483	success = cast_polymorph (op, caster, spell_ob, dir);	1293	success = cast_polymorph (op, caster, spell_ob, dir);
1484	#endif	1294	#endif
1485	break;	1295	break;
…		…
1505	break;	1315	break;
1506		1316
1507	case SP_MOVING_BALL:	1317	case SP_MOVING_BALL:
1508	if (spell_ob->path_repelled && (spell_ob->path_repelled & caster->path_attuned) != spell_ob->path_repelled)	1318	if (spell_ob->path_repelled && (spell_ob->path_repelled & caster->path_attuned) != spell_ob->path_repelled)
1509	{	1319	{
1510	new_draw_info_format (NDI_UNIQUE, 0, op, "You lack the proper attunement to cast %s", &spell_ob->name);	1320	op->failmsgf ("You lack the proper attunement to cast %s!", &spell_ob->name);
1511	success = 0;	1321	success = 0;
1512	}	1322	}
1513	else	1323	else
1514	success = fire_arch_from_position (op, caster, op->x + freearr_x[dir], op->y + freearr_y[dir], dir, spell_ob);	1324	success = fire_arch_from_position (op, caster, op->x, op->y, dir, spell_ob);
1515	break;	1325	break;
1516		1326
1517	case SP_SWARM:	1327	case SP_SWARM:
1518	success = fire_swarm (op, caster, spell_ob, dir);	1328	success = fire_swarm (op, caster, spell_ob, dir);
1519	break;	1329	break;
…		…
1526	/* in rune.c */	1336	/* in rune.c */
1527	success = dispel_rune (op, caster, spell_ob, skill, dir);	1337	success = dispel_rune (op, caster, spell_ob, skill, dir);
1528	break;	1338	break;
1529		1339
1530	case SP_CREATE_MISSILE:	1340	case SP_CREATE_MISSILE:
1531	success = cast_create_missile (op, caster, spell_ob, dir, stringarg);	1341	success = cast_create_missile (op, caster, spell_ob, dir, spellparam);
1532	break;	1342	break;
1533		1343
1534	case SP_CONSECRATE:	1344	case SP_CONSECRATE:
1535	success = cast_consecrate (op, caster, spell_ob);	1345	success = cast_consecrate (op, caster, spell_ob);
1536	break;	1346	break;
1537		1347
1538	case SP_ANIMATE_WEAPON:	1348	case SP_ANIMATE_WEAPON:
1539	success = animate_weapon (op, caster, spell_ob, dir);	1349	success = animate_weapon (op, caster, spell_ob, dir);
1540	old_shoottype = range_golem;
1541	break;	1350	break;
1542		1351
1543	case SP_LIGHT:	1352	case SP_LIGHT:
1544	success = cast_light (op, caster, spell_ob, dir);	1353	success = cast_light (op, caster, spell_ob, dir);
1545	break;	1354	break;
…		…
1558		1367
1559	case SP_AURA:	1368	case SP_AURA:
1560	success = create_aura (op, caster, spell_ob);	1369	success = create_aura (op, caster, spell_ob);
1561	break;	1370	break;
1562		1371
1563	case SP_TOWN_PORTAL:
1564	success = cast_create_town_portal (op, caster, spell_ob, dir);
1565	break;
1566
1567	case SP_PARTY_SPELL:	1372	case SP_PARTY_SPELL:
1568	success = cast_party_spell (op, caster, dir, spell_ob, stringarg);	1373	success = cast_party_spell (op, caster, dir, spell_ob, spellparam);
1569	break;	1374	break;
1570		1375
1571	default:	1376	default:
1572	if (!INVOKE_OBJECT (CAST_SPELL, spell_ob, ARG_OBJECT (op), ARG_OBJECT (caster), ARG_INT (dir), ARG_STRING (stringarg)))
1573	LOG (llevError, "cast_spell: Unhandled spell subtype %d\n", spell_ob->subtype);	1377	LOG (llevError, "cast_spell: Unhandled spell subtype %d\n", spell_ob->subtype);
1574	}
1575
1576	/* FIXME - we need some better sound suppport */
1577	// yes, for example, augment map info with the spell effect
1578	// so clients can calculate the sounds themselves
1579	//play_sound_map(op->map, op->x, op->y, SOUND_CAST_SPELL_0 + spell_ob->subtype);
1580
1581	/* free the spell arg */
1582	if (settings.casting_time == TRUE && stringarg)
1583	{	1378	}
1584	free (stringarg);	1379
1585	stringarg = NULL;	1380	// restore chosen_skill
1586	}	1381	op->chosen_skill = chosen_skill;
1587	/* perhaps a bit of a hack, but if using a wand, it has to change the skill	1382
1588	* to something like use_magic_item, but you really want to be able to fire	1383	op->play_sound (
1589	* it again.	1384	success
1590	*/	1385	? spell_ob->sound
1591	if (op->contr)	1386	? spell_ob->sound
1592	op->contr->shoottype = (rangetype) old_shoottype;	1387	: sound_find ("spell_success")
		1388	: sound_find ("fumble_spell")
		1389	);
1593		1390
1594	return success;	1391	return success;
1595	}	1392	}
1596		1393
1597
1598	/* This is called from time.c/process_object(). That function	1394	/* This is called from time.c/process_object(). That function
1599	* calls this for any SPELL_EFFECT type objects. This function	1395	* calls this for any SPELL_EFFECT type objects. This function
1600	* then dispatches them to the appropriate specific routines.	1396	* then dispatches them to the appropriate specific routines.
1601	*/	1397	*/
1602	void	1398	void
1603	move_spell_effect (object *op)	1399	move_spell_effect (object *op)
1604	{	1400	{
…		…
1644	move_aura (op);	1440	move_aura (op);
1645	break;	1441	break;
1646	}	1442	}
1647	}	1443	}
1648		1444
1649	/* this checks to see if something special should happen if
1650	* something runs into the object.
1651	*/
1652	void
1653	check_spell_effect (object *op)
1654	{
1655	switch (op->subtype)
1656	{
1657	case SP_BOLT:
1658	move_bolt (op);
1659	return;
1660
1661	case SP_BULLET:
1662	check_bullet (op);
1663	return;
1664	}
1665	}
1666
1667	/* This is called by move_apply. Basically, if someone	1445	/* This is called by move_apply. Basically, if someone
1668	* moves onto a spell effect and the walk_on or fly_on flags	1446	* moves onto a spell effect and the walk_on or fly_on flags
1669	* are set, this is called. This should only be called for	1447	* are set, this is called. This should only be called for
1670	* objects of the appropraite type.	1448	* objects of the appropriate type.
1671	*/	1449	*/
1672	void	1450	void
1673	apply_spell_effect (object *spell, object *victim)	1451	apply_spell_effect (object *spell, object *victim)
1674	{	1452	{
1675	switch (spell->subtype)	1453	switch (spell->subtype)
1676	{	1454	{
1677	case SP_CONE:	1455	case SP_CONE:
1678	if (QUERY_FLAG (victim, FLAG_ALIVE) && spell->speed && spell->attacktype)	1456	if (victim->flag [FLAG_ALIVE] && spell->has_active_speed () && spell->attacktype)
1679	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 0);	1457	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 0);
1680	break;	1458	break;
1681		1459
1682	case SP_MAGIC_MISSILE:	1460	case SP_MAGIC_MISSILE:
1683	if (QUERY_FLAG (victim, FLAG_ALIVE))	1461	if (victim->flag [FLAG_ALIVE])
1684	{	1462	{
1685	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);	1463	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);
1686
1687	if (!spell->destroyed ())
1688	spell->destroy ();	1464	spell->destroy ();
1689	}	1465	}
1690	break;	1466	break;
1691		1467
1692	case SP_MOVING_BALL:	1468	case SP_MOVING_BALL:
1693	if (QUERY_FLAG (victim, FLAG_ALIVE))	1469	if (victim->flag [FLAG_ALIVE])
1694	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);	1470	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);
1695	else if (victim->material || victim->materialname)	1471	else if (victim->material != MATERIAL_NULL)
1696	save_throw_object (victim, spell->attacktype, spell);	1472	save_throw_object (victim, spell->attacktype, spell);
		1473
1697	break;	1474	break;
1698	}	1475	}
1699	}	1476	}
		1477
		1478	/**
		1479	* This function will let a fireball explode at the position of
		1480	* the victim with a specific maximum level.
		1481	*/
		1482	void
		1483	create_exploding_ball_at (object *victim, int level)
		1484	{
		1485	object *ball = archetype::get (EXPLODING_FIREBALL);
		1486	ball->dam_modifier = random_roll (1, level, victim, PREFER_LOW) / 5 + 1;
		1487	ball->stats.maxhp = random_roll (1, level, victim, PREFER_LOW) / 10 + 2;
		1488	ball->insert_at (victim);
		1489	}

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