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

Comparing deliantra/server/server/spell_util.C (file contents):
Revision 1.19 by root, Tue Dec 12 20:53:03 2006 UTC vs.
Revision 1.128 by root, Wed Nov 16 23:42:03 2016 UTC

…		…
1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23
24		24
25	#include <global.h>	25	#include <global.h>
26	#include <spells.h>	26	#include <spells.h>
27	#include <object.h>	27	#include <object.h>
28	#include <errno.h>	28	#include <errno.h>
29	#ifndef __CEXTRACT__
30	# include <sproto.h>	29	#include <sproto.h>
31	#endif
32	#include <sounds.h>	30	#include <sounds.h>
33		31
34	extern char *spell_mapping[];	32	extern char *spell_mapping[];
35		33
36	/* This returns a random spell from 'ob'. If skill is set, then	34	/* 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	35	* the spell must be of this skill, it can be NULL in which case all
38	* matching spells are used.	36	* matching spells are used.
39	*/	37	*/
40	object *	38	object *
41	find_random_spell_in_ob (object ob, const char skill)	39	find_random_spell_in_ob (object *ob, shstr_cmp skill)
42	{	40	{
43	int k = 0, s;	41	int k = 0, s;
44	object *tmp;
45		42
46	for (tmp = ob->inv; tmp; tmp = tmp->below)	43	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
47	if (tmp->type == SPELL && (!skill \|\| tmp->skill == skill))	44	if (tmp->type == SPELL && (!skill \|\| tmp->skill == skill))
48	k++;	45	k++;
49		46
50	/* No spells, no need to progess further */	47	/* No spells, no need to progess further */
51	if (!k)	48	if (!k)
52	return NULL;	49	return NULL;
53		50
54	s = RANDOM () % k;	51	s = rndm (k);
55		52
56	for (tmp = ob->inv; tmp; tmp = tmp->below)	53	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
57	if (tmp->type == SPELL && (!skill \|\| tmp->skill == skill))	54	if (tmp->type == SPELL && (!skill \|\| tmp->skill == skill))
58	{
59	if (!s)	55	if (!s)
60	return tmp;	56	return tmp;
61	else	57	else
62	s--;	58	s--;
63	}	59
64	/* Should never get here, but just in case */	60	/* Should never get here, but just in case */
65	return NULL;	61	return 0;
66	}	62	}
67		63
68	/* Relatively simple function that gets used a lot.	64	/* Relatively simple function that gets used a lot.
69	* Basically, it sets up the skill pointer for the spell being	65	* Basically, it sets up the skill pointer for the spell being
70	* cast. If op is really casting the spell, then the skill	66	* cast. If op is really casting the spell, then the skill
80	dest->skill = spob->skill;	76	dest->skill = spob->skill;
81	else	77	else
82	dest->skill = caster->skill;	78	dest->skill = caster->skill;
83	}	79	}
84		80
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	81	/* pretty basic function - basically just takes
154	* an object, sets the x,y, and calls insert_ob_in_map	82	* an object, sets the x,y, and calls insert_ob_in_map
155	*/	83	*/
156
157	void	84	void
158	spell_effect (object spob, int x, int y, maptile map, object *originator)	85	spell_effect (object spob, int x, int y, maptile map, object *originator)
159	{	86	{
160
161	if (spob->other_arch != NULL)	87	if (spob->other_arch)
162	{	88	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	}	89	}
171		90
172	/*	91	static int
173	* This function takes a caster and spell and presents the	92	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	{	93	{
185	int new_level;	94	// compute the attuned/repelled bonus
186		95	// attuned only increases up to 2 times the original level (i.e. bonus <= level) */
187	if (caster->path_denied & spell->path_attuned)	96	// repell has no such quarrels
188	return 1;	97	return (caster->path_attuned & spell->path_attuned ? min (level, +ATTUNE_REPELL) : 0)
189		98	+ (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	}	99	}
195
196		100
197	/* This function returns the effective level the spell	101	/* This function returns the effective level the spell
198	* is being cast at.	102	* 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	*/	103	*/
203
204	int	104	int
205	caster_level (object caster, object spell)	105	casting_level (object caster, object spell)
206	{	106	{
207	int level = caster->level;	107	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		108
218	/* if a rod is fired by a player, take the use_magic_item skill in consideration. */	109	/* 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)	110	if (caster->type == ROD && caster->env && caster->env->type == PLAYER)
220	{	111	{
221	object *skill = find_skill_by_number (caster->env, SK_USE_MAGIC_ITEM);	112	object *skill = find_skill_by_number (caster->env, SK_USE_MAGIC_ITEM);
222	int sk_level = skill ? skill->level : 1;	113	int sk_level = skill ? skill->level : 1;
223		114
224	level = MIN (level, sk_level + level / 10 + 1);	115	level = min (level, sk_level + level / 10 + 1);
225	}	116	}
		117	else if (caster->type == PLAYER) /* If this is a player, try to find the matching skill */
		118	if (object *skill = caster->contr->find_skill (spell->skill))
		119	level = skill->level;
226		120
227	/* Got valid caster level. Now adjust for attunement */	121	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);	122
		123	level += bonus;
		124
		125	// now scale the effective level from the startinglevel..100 range to 1..100
		126	if (level < 100)
		127	level = lerp (level, (int)spell->level, 100, 1, 100);
229		128
230	/* Always make this at least 1. If this is zero, we get divide by zero	129	/* Always make this at least 1. If this is zero, we get divide by zero
231	* errors in various places.	130	* errors in various places.
232	*/	131	*/
233	if (level < 1)	132	return clamp (level, 1, settings.max_level);
234	level = 1;
235
236	return level;
237	}	133	}
238		134
239	/* The following function scales the spellpoint cost of	135	/* The following function scales the spellpoint cost of
240	* a spell by it's increased effectiveness. Some of the	136	* a spell by it's increased effectiveness. Some of the
241	* lower level spells become incredibly vicious at high	137	* lower level spells become incredibly vicious at high
…		…
245	* caster is what is casting the spell, can be op.	141	* caster is what is casting the spell, can be op.
246	* spell is the spell object.	142	* spell is the spell object.
247	* Note that it is now possible for a spell to cost both grace and	143	* 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.	144	* mana. In that case, we return which ever value is higher.
249	*/	145	*/
250
251	sint16	146	sint16
252	SP_level_spellpoint_cost (object caster, object spell, int flags)	147	SP_level_spellpoint_cost (object caster, object spell, int flags)
253	{	148	{
254	int sp, grace, level = caster_level (caster, spell);	149	int sp, grace, level = casting_level (caster, spell);
255		150
256	if (settings.spellpoint_level_depend == TRUE)	151	if (settings.spellpoint_level_depend == TRUE)
257	{	152	{
258	if (spell->stats.sp && spell->stats.maxsp)	153	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)));	154	sp = spell->stats.sp * (1.f + max (0.f, float (level - spell->level) / spell->stats.maxsp));
261	}
262	else	155	else
263	sp = spell->stats.sp;	156	sp = spell->stats.sp;
264		157
265	sp *= (int) PATH_SP_MULT (caster, spell);	158	sp *= (int) PATH_SP_MULT (caster, spell);
266	if (!sp && spell->stats.sp)	159	if (!sp && spell->stats.sp)
267	sp = 1;	160	sp = 1;
268		161
269	if (spell->stats.grace && spell->stats.maxgrace)	162	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)));	163	grace = spell->stats.grace * (1.f + max (0.f, float (level - spell->level) / spell->stats.maxgrace));
272	}
273	else	164	else
274	grace = spell->stats.grace;	165	grace = spell->stats.grace;
275		166
276	grace *= (int) PATH_SP_MULT (caster, spell);	167	grace *= PATH_SP_MULT (caster, spell);
277	if (spell->stats.grace && !grace)	168	if (spell->stats.grace && !grace)
278	grace = 1;	169	grace = 1;
279	}	170	}
280	else	171	else
281	{	172	{
282	sp = (int) (spell->stats.sp * PATH_SP_MULT (caster, spell));	173	sp = (int) (spell->stats.sp * PATH_SP_MULT (caster, spell));
283	if (spell->stats.sp && !sp)	174	if (spell->stats.sp && !sp)
284	sp = 1;	175	sp = 1;
		176
285	grace = (int) (spell->stats.grace * PATH_SP_MULT (caster, spell));	177	grace = (int) (spell->stats.grace * PATH_SP_MULT (caster, spell));
286	if (spell->stats.grace && !grace)	178	if (spell->stats.grace && !grace)
287	grace = 1;	179	grace = 1;
288	}	180	}
		181
289	if (flags == SPELL_HIGHEST)	182	if (flags == SPELL_HIGHEST)
290	return MAX (sp, grace);	183	return max (sp, grace);
291	else if (flags == SPELL_GRACE)	184	else if (flags == SPELL_GRACE)
292	return grace;	185	return grace;
293	else if (flags == SPELL_MANA)	186	else if (flags == SPELL_MANA)
294	return sp;	187	return sp;
295	else	188	else
…		…
297	LOG (llevError, "SP_level_spellpoint_cost: Unknown flags passed: %d\n", flags);	190	LOG (llevError, "SP_level_spellpoint_cost: Unknown flags passed: %d\n", flags);
298	return 0;	191	return 0;
299	}	192	}
300	}	193	}
301		194
		195	/*
		196	* Return the effective casting level of the spell.
		197	* To make spells independent of their starting level, this function
		198	* scales the range spellstartlevel .. 100 into the range 1..100
		199	*/
		200	static int
		201	SP_casting_level (object caster, object spell)
		202	{
		203	return casting_level (caster, spell);
		204	}
302		205
303	/* SP_level_dam_adjust: Returns adjusted damage based on the caster.	206	/* SP_level_dam_adjust: Returns adjusted damage based on the caster.
304	* spob is the spell we are adjusting.	207	* spob is the spell we are adjusting.
305	*/	208	*/
306	int	209	int
307	SP_level_dam_adjust (object caster, object spob)	210	SP_level_dam_adjust (object caster, object spob)
308	{	211	{
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)	212	if (!spob->dam_modifier)
315	adj /= spob->dam_modifier;
316	else
317	adj = 0;
318	return adj;	213	return 0;
		214
		215	return SP_casting_level (caster, spob) / spob->dam_modifier;
319	}	216	}
320		217
321	/* Adjust the strength of the spell based on level.	218	/* Adjust the strength of the spell based on level.
322	* This is basically the same as SP_level_dam_adjust above,	219	* This is basically the same as SP_level_dam_adjust above,
323	* but instead looks at the level_modifier value.	220	* but instead looks at the level_modifier value.
324	*/	221	*/
325	int	222	int
326	SP_level_duration_adjust (object caster, object spob)	223	SP_level_duration_adjust (object caster, object spob)
327	{	224	{
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)	225	if (!spob->duration_modifier)
334	adj /= spob->duration_modifier;
335	else
336	adj = 0;
337
338	return adj;	226	return 0;
		227
		228	return SP_casting_level (caster, spob) / spob->duration_modifier;
339	}	229	}
340		230
341	/* Adjust the strength of the spell based on level.	231	/* Adjust the strength of the spell based on level.
342	* This is basically the same as SP_level_dam_adjust above,	232	* This is basically the same as SP_level_dam_adjust above,
343	* but instead looks at the level_modifier value.	233	* but instead looks at the level_modifier value.
344	*/	234	*/
345	int	235	int
346	SP_level_range_adjust (object caster, object spob)	236	SP_level_range_adjust (object caster, object spob)
347	{	237	{
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)	238	if (!spob->range_modifier)
354	adj /= spob->range_modifier;
355	else
356	adj = 0;
357
358	return adj;	239	return 0;
		240
		241	return SP_casting_level (caster, spob) / spob->range_modifier;
359	}	242	}
360		243
361	/* Checks to see if player knows the spell. If the name is the same	244	/* Checks to see if player knows the spell. If the name is the same
362	* as an existing spell, we presume they know it.	245	* as an existing spell, we presume they know it.
363	* returns 1 if they know the spell, 0 if they don't.	246	* returns 1 if they know the spell, 0 if they don't.
364	*/	247	*/
365	object *	248	object *
366	check_spell_known (object op, const char name)	249	check_spell_known (object *op, shstr_cmp name)
367	{	250	{
368	object *spop;	251	object *spop;
369		252
370	for (spop = op->inv; spop; spop = spop->below)	253	for (spop = op->inv; spop; spop = spop->below)
371	if (spop->type == SPELL && !strcmp (spop->name, name))	254	if (spop->type == SPELL && spop->name == name)
372	return spop;	255	return spop;
373		256
374	return NULL;	257	return 0;
375	}	258	}
376		259
377		260	/*
378	/*
379	* Look at object 'op' and see if they know the spell	261	* Look at object 'op' and see if they know the spell
380	* spname. This is pretty close to check_spell_known	262	* spname. This is pretty close to check_spell_known
381	* above, but it uses a looser matching mechanism.	263	* above, but it uses a looser matching mechanism.
382	* returns the matching spell object, or NULL.	264	* returns the matching spell object, or NULL.
383	* If we match multiple spells but don't get an	265	* If we match multiple spells but don't get an
384	* exact match, we also return NULL.	266	* exact match, we also return NULL.
385	*/	267	*/
386
387	object *	268	object *
388	lookup_spell_by_name (object op, const char spname)	269	object::find_spell (const_utf8_string prefix) const
389	{	270	{
390	object spob1 = NULL, spob2 = NULL, *spob;	271	if (shstr_cmp name = prefix)
391	int nummatch = 0;	272	{
392		273	// 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)	274	for (object *spob = inv; spob; spob = spob->below)
		275	if (spob->name == name && spob->type == SPELL)
		276	return spob;
401	{	277	}
		278	else
		279	{
		280	// case 2, match prefix
		281	int len = strlen (prefix);
		282
		283	for (object *spob = inv; spob; spob = spob->below)
402	if (spob->type == SPELL)	284	if (spob->type == SPELL
403	{	285	&& spob->name.length () < len
404	if (!strncmp (spob->name, spname, strlen (spname)))	286	&& prefix [spob->name.length ()] <= ' '
405	{	287	&& !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;	288	return spob;
427	if (spob1 && nummatch == 1)	289	}
428	return spob1;	290
429	return NULL;	291	return 0;
430	}	292	}
431		293
432	/* reflwall - decides weither the (spell-)object sp_op will	294	/* reflwall - decides weither the (spell-)object sp_op will
433	* be reflected from the given mapsquare. Returns 1 if true.	295	* be reflected from the given mapsquare. Returns 1 if true.
434	* (Note that for living creatures there is a small chance that	296	* (Note that for living creatures there is a small chance that
…		…
437	* eg, updated for tiled maps.	299	* eg, updated for tiled maps.
438	*/	300	*/
439	int	301	int
440	reflwall (maptile m, int x, int y, object sp_op)	302	reflwall (maptile m, int x, int y, object sp_op)
441	{	303	{
442	object *op;
443
444	if (OUT_OF_REAL_MAP (m, x, y))	304	if (OUT_OF_REAL_MAP (m, x, y))
445	return 0;	305	return 0;
446	for (op = get_map_ob (m, x, y); op != NULL; op = op->above)	306
447	if (QUERY_FLAG (op, FLAG_REFL_SPELL) && (!QUERY_FLAG (op, FLAG_ALIVE) \|\|	307	for (object *op = GET_MAP_OB (m, x, y); op; op = op->above)
448	sp_op->type == LIGHTNING \|\| (rndm (0, 99)) < 90 - (sp_op->level / 10)))	308	if (op->flag [FLAG_REFL_SPELL]
		309	&& (!op->flag [FLAG_ALIVE]
		310	\|\| (rndm (0, 99)) < 90 - (sp_op->level / 10)))
449	return 1;	311	return 1;
450		312
451	return 0;	313	return 0;
452	}	314	}
453		315
454	/* cast_create_object: creates object new_op in direction dir	316	/* cast_create_object: creates object new_op in direction dir
455	* or if that is blocked, beneath the player (op).	317	* or if that is blocked, beneath the player (op).
456	* we pass 'caster', but don't use it for anything.	318	* we pass 'caster', but don't use it for anything.
457	* This is really just a simple wrapper function .	319	* This is really just a simple wrapper function .
458	* returns the direction that the object was actually placed	320	* returns true to indicate whether the operation was successful.
459	* in.	321	* destroys the object is unsuccessful.
460	*/	322	*/
461	int	323	bool
462	cast_create_obj (object op, object caster, object *new_op, int dir)	324	cast_create_obj (object op, object caster, object *new_op, int dir)
463	{	325	{
464	maptile *m;	326	mapxy pos (op);
465	sint16 sx, sy;	327	pos.move (dir);
466		328
467	if (dir &&	329	if (!pos.normalise ()
468	((get_map_flags (op->map, &m, op->x + freearr_x[dir], op->y + freearr_y[dir], &sx, &sy) & P_OUT_OF_MAP) \|\|	330	\|\| pos->blocks (op) // perversely enough, we check if the palyer can reach that space
469	OB_TYPE_MOVE_BLOCK (op, GET_MAP_MOVE_BLOCK (m, sx, sy))))	331	\|\| !new_op->can_drop_at (pos.m, pos.x, pos.y)
470	{	332	)
471	new_draw_info (NDI_UNIQUE, 0, op, "Something is in the way.");
472	new_draw_info (NDI_UNIQUE, 0, op, "You cast it at your feet.");
473	dir = 0;
474	}	333	{
475	new_op->x = op->x + freearr_x[dir];	334	op->failmsg ("Your spell fizzles! H<Something is in the way.>");
476	new_op->y = op->y + freearr_y[dir];	335	new_op->destroy ();
477	if (dir == 0)	336	return 0;
478	insert_ob_in_map (new_op, op->map, op, INS_BELOW_ORIGINATOR);	337	}
479	else	338
480	insert_ob_in_map (new_op, op->map, op, 0);	339	new_op->set_flag (FLAG_IDENTIFIED);
		340
		341	pos.insert (new_op, op, dir ? 0 : INS_BELOW_ORIGINATOR);
		342
481	return dir;	343	return 1;
		344	}
		345
		346	static bool
		347	mergable_owner (object o1, object o2)
		348	{
		349	if (o1 == o2)
		350	return 1;
		351
		352	if (!o1 \|\| !o2)
		353	return 0;
		354
		355	if (o1->flag [FLAG_FRIENDLY] != o1->flag [FLAG_FRIENDLY])
		356	return 0;
		357
		358	if (o1->is_player () \|\| o2->is_player ())
		359	return 0;
		360
		361	return 1;
482	}	362	}
483		363
484	/* Returns true if it is ok to put spell *op on the space/may provided.	364	/* Returns true if it is ok to put spell *op on the space/may provided.
485	* immune_stop is basically the attacktype of the spell (why	365	* immune_stop is basically the attacktype of the spell (why
486	* passed as a different value, not sure of). If immune_stop	366	* passed as a different value, not sure of). If immune_stop
487	* has the AT_MAGIC bit set, and there is a counterwall	367	* has the AT_MAGIC bit set, and there is a counterwall
488	* on the space, the object doesn't get placed. if immune stop	368	* on the space, the object doesn't get placed. if immune stop
489	* does not have AT_MAGIC, then counterwalls do not effect the spell.	369	* does not have AT_MAGIC, then counterwalls do not effect the spell.
490	*	370	*/
491	*/
492
493	int	371	int
494	ok_to_put_more (maptile m, sint16 x, sint16 y, object op, int immune_stop)	372	ok_to_put_more (maptile m, sint16 x, sint16 y, object op, int immune_stop)
495	{	373	{
496	object *tmp;	374	if (!xy_normalise (m, x, y))
497	int mflags;
498	maptile *mp;
499
500	mp = m;
501	mflags = get_map_flags (m, &mp, x, y, &x, &y);
502
503	if (mflags & P_OUT_OF_MAP)
504	return 0;	375	return 0;
505		376
506	if (OB_TYPE_MOVE_BLOCK (op, GET_MAP_MOVE_BLOCK (mp, x, y)))	377	mapspace &ms = m->at (x, y);
		378	ms.update ();
		379
		380	if (OB_TYPE_MOVE_BLOCK (op, ms.move_block))
507	return 0;	381	return 0;
508		382
509	for (tmp = get_map_ob (mp, x, y); tmp != NULL; tmp = tmp->above)	383	int max_effects = 5; // max. number of similar spells per mapspace
		384
		385	for (object *tmp = ms.top; tmp; tmp = tmp->below)
510	{	386	{
511	/* If there is a counterspell on the space, and this	387	/* If there is a counterspell on the space, and this
512	* object is using magic, don't progress. I believe we could	388	* object is using magic, don't progress. I believe we could
513	* leave this out and let in progress, and other areas of the code	389	* leave this out and let in progress, and other areas of the code
514	* will then remove it, but that would seem to to use more	390	* will then remove it, but that would seem to to use more
515	* resources, and may not work as well if a player is standing	391	* resources, and may not work as well if a player is standing
516	* on top of a counterwall spell (may hit the player before being	392	* on top of a counterwall spell (may hit the player before being
517	* removed.) On the other hand, it may be more dramatic for the	393	* removed.) On the other hand, it may be more dramatic for the
518	* spell to actually hit the counterwall and be sucked up.	394	* spell to actually hit the counterwall and be sucked up.
519	*/	395	*/
520	if ((tmp->attacktype & AT_COUNTERSPELL) &&	396	if ((tmp->attacktype & AT_COUNTERSPELL)
521	(tmp->type != PLAYER) && !QUERY_FLAG (tmp, FLAG_MONSTER) &&	397	&& !tmp->flag [FLAG_MONSTER]
522	(tmp->type != WEAPON) && (tmp->type != BOW) && (tmp->type != ARROW) && (tmp->type != GOLEM) && (immune_stop & AT_MAGIC))	398	&& (tmp->type != PLAYER)
		399	&& (tmp->type != WEAPON)
		400	&& (tmp->type != BOW)
		401	&& (tmp->type != ARROW)
		402	&& (tmp->type != GOLEM)
		403	&& !tmp->flag [FLAG_IS_FLOOR] // XXX:
		404	// we special case floor here because there
		405	// are sometimes spell effect floors
		406	// which are used to inflict damage
		407	// (and those shouldn't go away from
		408	// sanctuary) see also: permanent lava
		409	&& (immune_stop & AT_MAGIC))
523	return 0;	410	return 0;
524		411
525	/* This is to prevent 'out of control' spells. Basically, this
526	* limits one spell effect per space per spell. This is definately
527	* needed for performance reasons, and just for playability I believe.
528	* there are no such things as multispaced spells right now, so
529	* we don't need to worry about the head.
530	*/
531	if ((tmp->stats.maxhp == op->stats.maxhp) && (tmp->type == op->type) && (tmp->subtype == op->subtype))
532	return 0;
533
534	/*
535	* Combine similar spell effects into one spell effect. Needed for
536	* performance reasons with meteor swarm and the like, but also for
537	* playability reasons.
538	*/
539	if (tmp->arch == op->arch
540	&& tmp->type == op->type	412	if (tmp->type == op->type)
541	&& tmp->subtype == op->subtype
542	&& tmp->owner == op->owner && ((tmp->subtype == SP_EXPLOSION) \|\| (tmp->subtype == SP_CONE && tmp->stats.sp == op->stats.sp)))
543	{	413	{
544	tmp->stats.dam = MAX (tmp->stats.dam, op->stats.dam);	414	if (tmp->subtype == op->subtype
545	tmp->range = MAX (tmp->range, op->range);	415	&& tmp->arch == op->arch /* no harm if not comparing by name here */)
546	tmp->duration = MAX (tmp->duration, op->duration);	416	{
		417	/* This is to prevent 'out of control' spells. Basically, this
		418	* limits one spell effect per space per spell. This is definately
		419	* needed for performance reasons, and just for playability I believe.
		420	* there are no such things as multispaced spells right now, so
		421	* we don't need to worry about the head.
		422	*/
		423	if (tmp->stats.maxhp == op->stats.maxhp)
		424	return 0;
		425
		426	/*
		427	* Combine similar spell effects into one spell effect. Needed for
		428	* performance reasons with meteor swarm and the like, but also for
		429	* playability reasons.
		430	*/
		431	if (((tmp->subtype == SP_EXPLOSION) \|\| (tmp->subtype == SP_CONE && tmp->stats.sp == op->stats.sp)))
		432	if (mergable_owner (tmp, op))
		433	{
		434	// if same owner, then combine, but reduce advantage of multiple spells
		435	max_it (tmp->stats.dam, op->stats.dam);
		436	max_it (tmp->range , op->range);
		437	max_it (tmp->duration , op->duration);
		438	return 0;
		439	}
		440	}
		441
		442	// if there are too many spell effects on this space,
		443	// then don't allow more of them, for performance reasons.
		444	if (tmp->type == SPELL_EFFECT
		445	&& !--max_effects)
547	return 0;	446	return 0;
548	}	447	}
549		448
550	/* Perhaps we should also put checks in for no magic and unholy	449	/* Perhaps we should also put checks in for no magic and unholy
551	* ground to prevent it from moving along?	450	* ground to prevent it from moving along?
552	*/	451	*/
553	}	452	}
		453
554	/* If it passes the above tests, it must be OK */	454	/* If it passes the above tests, it must be OK */
555	return 1;	455	return 1;
556	}	456	}
557		457
558	/* fire_arch_from_position: fires an archetype.	458	/* fire_arch_from_position: fires an archetype.
…		…
563	* dir: direction to fire in.	463	* dir: direction to fire in.
564	* spell: spell that is being fired. It uses other_arch for the archetype	464	* spell: spell that is being fired. It uses other_arch for the archetype
565	* to fire.	465	* to fire.
566	* returns 0 on failure, 1 on success.	466	* returns 0 on failure, 1 on success.
567	*/	467	*/
568
569	int	468	int
570	fire_arch_from_position (object op, object caster, sint16 x, sint16 y, int dir, object *spell)	469	fire_arch_from_position (object op, object caster, sint16 x, sint16 y, int dir, object *spell)
571	{	470	{
572	object *tmp;
573	int mflags;
574	maptile *m;
575
576	if (spell->other_arch == NULL)	471	if (!spell->other_arch)
577	return 0;	472	return 0;
578		473
579	m = op->map;	474	object *tmp = spell->other_arch->instance ();
580	mflags = get_map_flags (m, &m, x, y, &x, &y);
581	if (mflags & P_OUT_OF_MAP)
582	{
583	return 0;
584	}
585		475
586	tmp = arch_to_object (spell->other_arch);	476	if (!tmp)
587
588	if (tmp == NULL)
589	return 0;	477	return 0;
590
591	if (OB_TYPE_MOVE_BLOCK (tmp, GET_MAP_MOVE_BLOCK (m, x, y)))
592	{
593	new_draw_info (NDI_UNIQUE, 0, op, "You can't cast the spell on top of a wall!\n");
594	tmp->destroy (0);
595	return 0;
596	}
597
598
599		478
600	tmp->stats.dam = spell->stats.dam + SP_level_dam_adjust (caster, spell);	479	tmp->stats.dam = spell->stats.dam + SP_level_dam_adjust (caster, spell);
601	tmp->duration = spell->duration + SP_level_duration_adjust (caster, spell);	480	tmp->duration = spell->duration + SP_level_duration_adjust (caster, spell);
602	/* code in time.c uses food for some things, duration for others */	481	/* code in time.c uses food for some things, duration for others */
603	tmp->stats.food = tmp->duration;	482	tmp->stats.food = tmp->duration;
604	tmp->range = spell->range + SP_level_range_adjust (caster, spell);	483	tmp->range = spell->range + SP_level_range_adjust (caster, spell);
605	tmp->attacktype = spell->attacktype;	484	tmp->attacktype = spell->attacktype;
606	tmp->x = x;
607	tmp->y = y;
608	tmp->direction = dir;	485	tmp->direction = dir;
609	if (get_owner (op) != NULL)	486	tmp->set_owner (op);
610	copy_owner (tmp, op);
611	else
612	set_owner (tmp, op);
613	tmp->level = caster_level (caster, spell);	487	tmp->level = casting_level (caster, spell);
614	set_spell_skill (op, caster, spell, tmp);	488	set_spell_skill (op, caster, spell, tmp);
615		489
616	/* needed for AT_HOLYWORD,AT_GODPOWER stuff */	490	/* needed for AT_HOLYWORD,AT_GODPOWER stuff */
617	if (tmp->attacktype & AT_HOLYWORD \|\| tmp->attacktype & AT_GODPOWER)	491	if (tmp->attacktype & AT_HOLYWORD \|\| tmp->attacktype & AT_GODPOWER)
618	{
619	if (!tailor_god_spell (tmp, op))	492	if (!tailor_god_spell (tmp, op))
620	return 0;	493	return 0;
621	}	494
622	if (QUERY_FLAG (tmp, FLAG_IS_TURNABLE))	495	if (tmp->flag [FLAG_IS_TURNABLE])
623	SET_ANIMATION (tmp, dir);	496	SET_ANIMATION (tmp, dir);
624		497
625	if ((tmp = insert_ob_in_map (tmp, m, op, 0)) == NULL)	498	if ((tmp = op->map->insert (tmp, x, y, op)))
626	return 1;
627
628	move_spell_effect (tmp);	499	move_spell_effect (tmp);
629		500
630	return 1;	501	return 1;
631	}	502	}
632
633
634		503
635	/*****************************************************************************	504	/*****************************************************************************
636	*	505	*
637	* Code related to rods - perhaps better located in another file?	506	* Code related to rods - perhaps better located in another file?
638	*	507	*
639	****************************************************************************/	508	****************************************************************************/
640
641	void	509	void
642	regenerate_rod (object *rod)	510	regenerate_rod (object *rod)
643	{	511	{
644	if (rod->stats.hp < rod->stats.maxhp)	512	if (rod->stats.hp < rod->stats.maxhp)
645	{	513	rod->stats.hp = min (rod->stats.maxhp, rod->stats.hp + 1 + rod->stats.maxhp / 20);
646	rod->stats.hp += 1 + rod->stats.maxhp / 10;
647
648	if (rod->stats.hp > rod->stats.maxhp)
649	rod->stats.hp = rod->stats.maxhp;
650	}
651	}	514	}
652
653		515
654	void	516	void
655	drain_rod_charge (object *rod)	517	drain_rod_charge (object *rod)
656	{	518	{
657	rod->stats.hp -= SP_level_spellpoint_cost (rod, rod->inv, SPELL_HIGHEST);	519	rod->stats.hp -= SP_level_spellpoint_cost (rod, rod->inv, SPELL_HIGHEST);
658	}	520	}
659
660
661
662		521
663	/* this function is commonly used to find a friendly target for	522	/* this function is commonly used to find a friendly target for
664	* spells such as heal or protection or armour	523	* spells such as heal or protection or armour
665	* op is what is looking for the target (which can be a player),	524	* op is what is looking for the target (which can be a player),
666	* dir is the direction we are looking in. Return object found, or	525	* dir is the direction we are looking in. Return object found, or
667	* NULL if no good object.	526	* NULL if no good object.
668	*/	527	*/
669
670	object *	528	object *
671	find_target_for_friendly_spell (object *op, int dir)	529	find_target_for_friendly_spell (object *op, int dir)
672	{	530	{
673	object *tmp;	531	object *tmp;
674	maptile *m;
675	sint16 x, y;
676	int mflags;
677		532
678	/* I don't really get this block - if op isn't a player or rune,	533	/* I don't really get this block - if op isn't a player or rune,
679	* we then make the owner of this object the target.	534	* we then make the owner of this object the target.
680	* The owner could very well be no where near op.	535	* The owner could very well be no where near op.
681	*/	536	*/
682	if (op->type != PLAYER && op->type != RUNE)	537	if (op->type != PLAYER && op->type != RUNE)
683	{	538	{
684	tmp = get_owner (op);	539	tmp = op->owner;
685	/* If the owner does not exist, or is not a monster, than apply the spell	540	/* If the owner does not exist, or is not a monster, than apply the spell
686	* to the caster.	541	* to the caster.
687	*/	542	*/
688	if (!tmp \|\| !QUERY_FLAG (tmp, FLAG_MONSTER))	543	if (!tmp \|\| !tmp->flag [FLAG_MONSTER])
689	tmp = op;	544	tmp = op;
690	}	545	}
691	else	546	else
692	{	547	{
693	m = op->map;	548	maptile *m = op->map;
694	x = op->x + freearr_x[dir];	549	sint16 x = op->x + freearr_x[dir];
695	y = op->y + freearr_y[dir];	550	sint16 y = op->y + freearr_y[dir];
696
697	mflags = get_map_flags (m, &m, x, y, &x, &y);
698
699	if (mflags & P_OUT_OF_MAP)
700	tmp = NULL;
701	else
702	{	551
703	for (tmp = get_map_ob (m, x, y); tmp != NULL; tmp = tmp->above)	552	tmp = xy_normalise (m, x, y)
704	if (tmp->type == PLAYER)	553	? m->at (x, y).player ()
705	break;	554	: 0;
706	}
707	}	555	}
		556
708	/* didn't find a player there, look in current square for a player */	557	/* didn't find a player there, look in current square for a player */
709	if (tmp == NULL)	558	if (!tmp)
710	for (tmp = get_map_ob (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	559	tmp = op->ms ().player ();
711	{
712	if (tmp->type == PLAYER)
713	break;
714	}
715		560
716	return tmp;	561	return tmp;
717	}	562	}
718
719
720		563
721	/* raytrace:	564	/* raytrace:
722	* spell_find_dir(map, x, y, exclude) will search first the center square	565	* spell_find_dir(map, x, y, exclude) will search first the center square
723	* then some close squares in the given map at the given coordinates for	566	* then some close squares in the given map at the given coordinates for
724	* live objects.	567	* live objects.
…		…
727	* monsters/generators only. If not, the spell will hunt players only.	570	* monsters/generators only. If not, the spell will hunt players only.
728	* It returns the direction toward the first/closest live object if it finds	571	* It returns the direction toward the first/closest live object if it finds
729	* any, otherwise -1.	572	* any, otherwise -1.
730	* note that exclude can be NULL, in which case all bets are off.	573	* note that exclude can be NULL, in which case all bets are off.
731	*/	574	*/
732
733	int	575	int
734	spell_find_dir (maptile m, int x, int y, object exclude)	576	spell_find_dir (maptile m, int x, int y, object exclude)
735	{	577	{
736	int i, max = SIZEOFFREE;	578	int i, max = SIZEOFFREE;
737	sint16 nx, ny;	579	sint16 nx, ny;
…		…
751	mp = m;	593	mp = m;
752	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	594	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
753	if (mflags & (P_OUT_OF_MAP \| P_BLOCKSVIEW))	595	if (mflags & (P_OUT_OF_MAP \| P_BLOCKSVIEW))
754	continue;	596	continue;
755		597
756	tmp = get_map_ob (mp, nx, ny);	598	tmp = GET_MAP_OB (mp, nx, ny);
757		599
758	while (tmp != NULL && (((owner_type == PLAYER &&	600	while (tmp != NULL && (((owner_type == PLAYER &&
759	!QUERY_FLAG (tmp, FLAG_MONSTER) && !QUERY_FLAG (tmp, FLAG_GENERATOR)) \|\|	601	!tmp->flag [FLAG_MONSTER] && !tmp->flag [FLAG_GENERATOR]) \|\|
760	(owner_type != PLAYER && tmp->type != PLAYER)) \|\| (tmp == exclude \|\| (tmp->head && tmp->head == exclude))))	602	(owner_type != PLAYER && tmp->type != PLAYER)) \|\| (tmp == exclude \|\| (tmp->head && tmp->head == exclude))))
761	tmp = tmp->above;	603	tmp = tmp->above;
762		604
763	if (tmp != NULL && can_see_monsterP (m, x, y, i))	605	if (tmp != NULL && can_see_monsterP (m, x, y, i))
764	return freedir[i];	606	return freedir[i];
765	}	607	}
766	return -1; /* flag for "keep going the way you were" */	608	return -1; /* flag for "keep going the way you were" */
767	}	609	}
768
769
770		610
771	/* put_a_monster: puts a monster named monstername near by	611	/* put_a_monster: puts a monster named monstername near by
772	* op. This creates the treasures for the monsters, and	612	* op. This creates the treasures for the monsters, and
773	* also deals with multipart monsters properly.	613	* also deals with multipart monsters properly.
774	*/	614	*/
775		615	static void
776	void
777	put_a_monster (object op, const char monstername)	616	put_a_monster (object op, const char monstername)
778	{	617	{
779	object tmp, head = NULL, *prev = NULL;	618	object tmp, head = NULL, *prev = NULL;
780	archetype *at;	619	archetype *at;
781	int dir;	620	int dir;
…		…
787		626
788	/* find a free square nearby	627	/* find a free square nearby
789	* first we check the closest square for free squares	628	* first we check the closest square for free squares
790	*/	629	*/
791		630
792	dir = find_first_free_spot (&at->clone, op->map, op->x, op->y);	631	dir = find_first_free_spot (at, op->map, op->x, op->y);
793	if (dir != -1)	632	if (dir != -1)
794	{	633	{
795	/* This is basically grabbed for generate monster. Fixed 971225 to	634	/* This is basically grabbed for generate monster. Fixed 971225 to
796	* insert multipart monsters properly	635	* insert multipart monsters properly
797	*/	636	*/
		637	//TODO: use expand_tail + ...
798	while (at != NULL)	638	while (at != NULL)
799	{	639	{
800	tmp = arch_to_object (at);	640	tmp = at->instance ();
801	tmp->x = op->x + freearr_x[dir] + at->clone.x;	641	tmp->x = op->x + freearr_x[dir] + at->x;
802	tmp->y = op->y + freearr_y[dir] + at->clone.y;	642	tmp->y = op->y + freearr_y[dir] + at->y;
803	tmp->map = op->map;	643	tmp->map = op->map;
804	if (head)	644	if (head)
805	{	645	{
806	tmp->head = head;	646	tmp->head = head;
807	prev->more = tmp;	647	prev->more = tmp;
808	}	648	}
		649
809	if (!head)	650	if (!head)
810	head = tmp;	651	head = tmp;
		652
811	prev = tmp;	653	prev = tmp;
		654
812	at = at->more;	655	at = (archetype *)at->more;
813	}	656	}
814		657
815	if (head->randomitems)	658	if (head->randomitems)
816	create_treasure (head->randomitems, head, GT_INVISIBLE, op->map->difficulty, 0);	659	create_treasure (head->randomitems, head, GT_INVISIBLE, op->map->difficulty, 0);
817		660
818	insert_ob_in_map (head, op->map, op, 0);	661	insert_ob_in_map (head, op->map, op, 0);
819		662
820	/* thought it'd be cool to insert a burnout, too. */	663	/* thought it'd be cool to insert a burnout, too. */
821	tmp = get_archetype ("burnout");	664	op->map->insert (archetype::get (shstr_burnout), op->x + freearr_x[dir], op->y + freearr_y[dir], op);
822	tmp->map = op->map;
823	tmp->x = op->x + freearr_x[dir];
824	tmp->y = op->y + freearr_y[dir];
825	insert_ob_in_map (tmp, op->map, op, 0);
826	}	665	}
827	}	666	}
828		667
829	/* peterm: function which summons hostile monsters and	668	/* peterm: function which summons hostile monsters and
830	* places them in nearby squares.	669	* places them in nearby squares.
…		…
837	* Note that this is not used by any spells (summon evil monsters	676	* Note that this is not used by any spells (summon evil monsters
838	* use to call this, but best I can tell, that spell/ability was	677	* use to call this, but best I can tell, that spell/ability was
839	* never used. This is however used by various failures on the	678	* never used. This is however used by various failures on the
840	* players part (alchemy, reincarnation, etc)	679	* players part (alchemy, reincarnation, etc)
841	*/	680	*/
842
843	int	681	int
844	summon_hostile_monsters (object op, int n, const char monstername)	682	summon_hostile_monsters (object op, int n, const char monstername)
845	{	683	{
846	int i;	684	int i;
847		685
…		…
857	{	695	{
858	int attacktype;	696	int attacktype;
859	int face;	697	int face;
860	} ATTACKS[22] =	698	} ATTACKS[22] =
861	{	699	{
862	{
863	AT_PHYSICAL, 0},	700	{ AT_PHYSICAL, 0},
864	{
865	AT_PHYSICAL, 0}, /face = explosion /	701	{ AT_PHYSICAL, 0}, /face = explosion /
866	{
867	AT_PHYSICAL, 0},	702	{ AT_PHYSICAL, 0},
868	{
869	AT_MAGIC, 1},	703	{ AT_MAGIC, 1},
870	{
871	AT_MAGIC, 1}, /* face = last-burnout */	704	{ AT_MAGIC, 1}, /* face = last-burnout */
872	{
873	AT_MAGIC, 1},	705	{ AT_MAGIC, 1},
874	{
875	AT_FIRE, 2},	706	{ AT_FIRE, 2},
876	{
877	AT_FIRE, 2}, /* face = fire.... */	707	{ AT_FIRE, 2}, /* face = fire.... */
878	{
879	AT_FIRE, 2},	708	{ AT_FIRE, 2},
880	{
881	AT_ELECTRICITY, 3},	709	{ AT_ELECTRICITY, 3},
882	{
883	AT_ELECTRICITY, 3}, /* ball_lightning */	710	{ AT_ELECTRICITY, 3}, /* ball_lightning */
884	{
885	AT_ELECTRICITY, 3},	711	{ AT_ELECTRICITY, 3},
886	{
887	AT_COLD, 4},	712	{ AT_COLD, 4},
888	{
889	AT_COLD, 4}, /* face=icestorm */	713	{ AT_COLD, 4}, /* face=icestorm */
890	{
891	AT_COLD, 4},	714	{ AT_COLD, 4},
892	{
893	AT_CONFUSION, 5},	715	{ AT_CONFUSION, 5},
894	{
895	AT_POISON, 7},	716	{ AT_POISON, 7},
896	{
897	AT_POISON, 7}, /* face = acid sphere. generator */	717	{ AT_POISON, 7}, /* face = acid sphere. generator */
898	{
899	AT_POISON, 7}, /* poisoncloud face */	718	{ AT_POISON, 7}, /* poisoncloud face */
900	{
901	AT_SLOW, 8},	719	{ AT_SLOW, 8},
902	{
903	AT_PARALYZE, 9},	720	{ AT_PARALYZE, 9},
904	{
905	AT_FEAR, 10}};	721	{ AT_FEAR, 10},
906		722	};
907
908		723
909	/* shuffle_attack: peterm	724	/* shuffle_attack: peterm
910	* This routine shuffles the attack of op to one of the	725	* This routine shuffles the attack of op to one of the
911	* ones in the list. It does this at random. It also	726	* ones in the list. It does this at random. It also
912	* chooses a face appropriate to the attack that is	727	* chooses a face appropriate to the attack that is
…		…
935	{	750	{
936	SET_ANIMATION (op, ATTACKS[i].face);	751	SET_ANIMATION (op, ATTACKS[i].face);
937	}	752	}
938	}	753	}
939		754
940
941	/* prayer_failure: This is called when a player fails	755	/* prayer_failure: This is called when a player fails
942	* at casting a prayer.	756	* at casting a prayer.
943	* op is the player.	757	* op is the player.
944	* failure is basically how much grace they had.	758	* failure is basically how much grace they had.
945	* power is how much grace the spell would normally take to cast.	759	* power is how much grace the spell would normally take to cast.
946	*/	760	*/
947		761
948	void	762	#define HINT_GRACE " H<Make sure you always have enough grace points for your prayers.>"
		763
		764	static void
949	prayer_failure (object *op, int failure, int power)	765	prayer_failure (object *op, int failure, int power)
950	{	766	{
951	const char *godname;	767	const char *godname;
952	object *tmp;	768	object *tmp;
953		769
954	if (!strcmp ((godname = determine_god (op)), "none"))	770	if (!strcmp ((godname = determine_god (op)), "none"))
955	godname = "Your spirit";	771	godname = "Your spirit";
956		772
957	if (failure <= -20 && failure > -40) /* wonder */	773	if (failure <= -20 && failure > -40) /* wonder */
958	{	774	{
959	new_draw_info_format (NDI_UNIQUE, 0, op, "%s gives a sign to renew your faith.", godname);	775	op->failmsgf ("%s gives a sign to renew your faith." HINT_GRACE, godname);
960	tmp = get_archetype (SPELL_WONDER);	776	tmp = archetype::get (SPELL_WONDER);
961	cast_cone (op, op, 0, tmp);	777	cast_cone (op, op, 0, tmp);
962	tmp->destroy (0);	778	tmp->destroy ();
963	}	779	}
964		780
965	else if (failure <= -40 && failure > -60) /* confusion */	781	else if (failure <= -40 && failure > -60) /* confusion */
966	{	782	{
967	new_draw_info (NDI_UNIQUE, 0, op, "Your diety touches your mind!");	783	op->failmsg ("Your diety touches your mind!" HINT_GRACE);
968	confuse_player (op, op, 99);	784	confuse_player (op, op, 99);
969	}	785	}
970	else if (failure <= -60 && failure > -150) /* paralysis */	786	else if (failure <= -60 && failure > -150) /* paralysis */
971	{	787	{
972	new_draw_info_format (NDI_UNIQUE, 0, op, "%s requires you to pray NOW.", godname);	788	op->failmsgf ("%s requires you to pray NOW. "
973	new_draw_info (NDI_UNIQUE, 0, op, "You comply, ignoring all else.");	789	"You comply, ignoring all else." HINT_GRACE,
		790	godname);
974	paralyze_player (op, op, 99);	791	paralyze_player (op, op, 99);
975	}	792	}
976	else if (failure <= -150) /* blast the immediate area */	793	else if (failure <= -150) /* blast the immediate area */
977	{	794	{
978	tmp = get_archetype (GOD_POWER);	795	tmp = archetype::get (GOD_POWER);
979	new_draw_info_format (NDI_UNIQUE, 0, op, "%s smites you!", godname);	796	op->failmsgf ("%s smites you!" HINT_GRACE, godname);
980	cast_magic_storm (op, tmp, power);	797	cast_magic_storm (op, tmp, power);
981	}	798	}
982	}	799	}
983		800
984	/*	801	/*
985	* spell_failure() handles the various effects for differing degrees	802	* spell_failure() handles the various effects for differing degrees
986	* of failure badness.	803	* of failure badness.
987	* op is the player that failed.	804	* op is the player that failed.
988	* failure is a random value of how badly you failed.	805	* failure is a random value of how badly you failed.
989	* power is how many spellpoints you'd normally need for the spell.	806	* power is how many spellpoints you'd normally need for the spell.
990	* skill is the skill you'd need to cast the spell.	807	* skill is the skill you'd need to cast the spell.
991	*/	808	*/
992
993	void	809	void
994	spell_failure (object op, int failure, int power, object skill)	810	spell_failure (object op, int failure, int power, object skill)
995	{	811	{
996	object *tmp;	812	object *tmp;
997		813
998	if (settings.spell_failure_effects == FALSE)	814	if (settings.spell_failure_effects == FALSE)
999	return;	815	return;
1000		816
1001	if (failure <= -20 && failure > -40) /* wonder */	817	if (failure <= -20 && failure > -40) /* wonder */
1002	{	818	{
1003	new_draw_info (NDI_UNIQUE, 0, op, "Your spell causes an unexpected effect.");	819	op->failmsg ("Your spell causes an unexpected effect.");
1004	tmp = get_archetype (SPELL_WONDER);	820	tmp = archetype::get (SPELL_WONDER);
1005	cast_cone (op, op, 0, tmp);	821	cast_cone (op, op, 0, tmp);
1006	tmp->destroy (0);	822	tmp->destroy ();
1007	}	823	}
1008		824
1009	else if (failure <= -40 && failure > -60) /* confusion */	825	else if (failure <= -40 && failure > -60) /* confusion */
1010	{	826	{
1011	new_draw_info (NDI_UNIQUE, 0, op, "Your magic recoils on you, making you confused!");	827	op->failmsg ("Your magic recoils on you, making you confused!");
1012	confuse_player (op, op, 99);	828	confuse_player (op, op, 99);
1013	}	829	}
1014	else if (failure <= -60 && failure > -80) /* paralysis */	830	else if (failure <= -60 && failure > -80) /* paralysis */
1015	{	831	{
1016	new_draw_info (NDI_UNIQUE, 0, op, "Your magic stuns you!");	832	op->failmsg ("Your magic stuns you!");
1017	paralyze_player (op, op, 99);	833	paralyze_player (op, op, 99);
1018	}	834	}
1019	else if (failure <= -80) /* blast the immediate area */	835	else if (failure <= -80) /* blast the immediate area */
1020	{	836	{
1021	object *tmp;	837	object *tmp;
1022		838
1023	/* Safety check to make sure we don't get any mana storms in scorn */	839	/* Safety check to make sure we don't get any mana storms in scorn */
1024	if (get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_NO_MAGIC)	840	if (get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_NO_MAGIC)
1025	{	841	{
1026	new_draw_info (NDI_UNIQUE, 0, op, "The magic warps and you are turned inside out!");	842	op->failmsg ("The magic warps and you are turned inside out!");
1027	hit_player (op, 9998, op, AT_INTERNAL, 1);	843	hit_player (op, 9998, op, AT_INTERNAL, 1);
1028		844
1029	}	845	}
1030	else	846	else
1031	{	847	{
1032	new_draw_info (NDI_UNIQUE, 0, op, "You lose control of the mana! The uncontrolled magic blasts you!");	848	op->failmsg ("You lose control of the mana! The uncontrolled magic blasts you!");
1033	tmp = get_archetype (LOOSE_MANA);	849	tmp = archetype::get (LOOSE_MANA);
1034	tmp->level = skill->level;	850	tmp->level = skill->level;
1035	tmp->x = op->x;
1036	tmp->y = op->y;
1037		851
1038	/* increase the area of destruction a little for more powerful spells */	852	/* increase the area of destruction a little for more powerful spells */
1039	tmp->range += isqrt (power);	853	tmp->range += isqrt (power);
1040		854
1041	if (power > 25)	855	if (power > 25)
1042	tmp->stats.dam = 25 + isqrt (power);	856	tmp->stats.dam = 25 + isqrt (power);
1043	else	857	else
1044	tmp->stats.dam = power; /* nasty recoils! */	858	tmp->stats.dam = power; /* nasty recoils! */
1045		859
1046	tmp->stats.maxhp = tmp->count;	860	tmp->stats.maxhp = tmp->count;
1047	insert_ob_in_map (tmp, op->map, NULL, 0);	861
		862	tmp->insert_at (op);
1048	}	863	}
1049	}	864	}
1050	}	865	}
1051		866
1052	int	867	static int
1053	cast_party_spell (object op, object caster, int dir, object spell_ob, char stringarg)	868	cast_party_spell (object op, object caster, int dir, object spell_ob, char spellparam)
1054	{	869	{
1055	int success;
1056	player *pl;
1057	object *spell;
1058
1059	if (!spell_ob->other_arch)	870	if (!spell_ob->other_arch)
1060	{	871	{
1061	LOG (llevError, "cast_party_spell: empty other arch\n");	872	LOG (llevError, "cast_party_spell: empty other arch\n");
1062	return 0;	873	return 0;
1063	}	874	}
1064	spell = arch_to_object (spell_ob->other_arch);	875
		876	object *spell = spell_ob->other_arch->instance ();
1065		877
1066	/* Always cast spell on caster */	878	/* Always cast spell on caster */
1067	success = cast_spell (op, caster, dir, spell, stringarg);	879	int success = cast_spell (op, caster, dir, spell, spellparam);
1068		880
1069	if (caster->contr->party == NULL)	881	if (!op->contr \|\| !op->contr->party)
1070	{	882	{
1071	spell->remove ();	883	spell->remove ();
1072	return success;	884	return success;
1073	}	885	}
1074	for (pl = first_player; pl != NULL; pl = pl->next)	886
1075	if ((pl->ob->contr->party == caster->contr->party) && (on_same_map (pl->ob, caster)))	887	for_all_players (pl)
1076	{	888	if ((pl->ob->contr->party == op->contr->party)
		889	&& on_same_map (pl->ob, op)
		890	&& pl->ob != op)
1077	cast_spell (pl->ob, caster, pl->ob->facing, spell, stringarg);	891	cast_spell (pl->ob, caster, pl->ob->facing, spell, spellparam);
1078	}	892
1079	spell->remove ();	893	spell->remove ();
1080	return success;	894	return success;
1081	}	895	}
1082		896
1083	/* This is where the main dispatch when someone casts a spell.	897	/* This is where the main dispatch when someone casts a spell.
…		…
1088	* same as op.	902	* same as op.
1089	* dir is the direction to cast in. Note in some cases, if the spell	903	* dir is the direction to cast in. Note in some cases, if the spell
1090	* is self only, dir really doesn't make a difference.	904	* is self only, dir really doesn't make a difference.
1091	* spell_ob is the spell object that is being cast. From that,	905	* spell_ob is the spell object that is being cast. From that,
1092	* we can determine what to do.	906	* we can determine what to do.
1093	* stringarg is any options that are being used. It can be NULL. Almost	907	* spellparam is any options that are being used. It can be NULL. Almost
1094	* certainly, only players will set it. It is basically used as optional	908	* certainly, only players will set it. It is basically used as optional
1095	* parameters to a spell (eg, item to create, information for marking runes,	909	* parameters to a spell (eg, item to create, information for marking runes,
1096	* etc.	910	* etc.
1097	* returns 1 on successful cast, or 0 on error. These values should really	911	* returns 1 on successful cast, or 0 on error. These values should really
1098	* be swapped, so that 0 is successful, and non zero is failure, with a code	912	* be swapped, so that 0 is successful, and non zero is failure, with a code
…		…
1105	*	919	*
1106	* if it is a player casting the spell (op->type == PLAYER, op == caster),	920	* if it is a player casting the spell (op->type == PLAYER, op == caster),
1107	* this function will decrease the mana/grace appropriately. For other	921	* this function will decrease the mana/grace appropriately. For other
1108	* objects, the caller should do what it considers appropriate.	922	* objects, the caller should do what it considers appropriate.
1109	*/	923	*/
1110
1111	int	924	int
1112	cast_spell (object op, object caster, int dir, object spell_ob, char stringarg)	925	cast_spell (object op, object caster, int dir, object spell_ob, char spellparam)
1113	{	926	{
1114	const char *godname;	927	const char *godname;
1115	int success = 0, mflags, cast_level = 0, old_shoottype;	928	int success = 0;
1116	object *skill = NULL;
1117		929
1118	old_shoottype = op->contr ? op->contr->shoottype : 0;	930	// make sure spells always take a while, so a) we don't flood the
		931	// user with messages and b) too many failures can be harmful (smiting).
		932	op->speed_left -= 4 * op->speed; // ~0.5s on failure
1119		933
1120	if (!spell_ob)	934	if (!spell_ob)
1121	{	935	{
1122	LOG (llevError, "cast_spell: null spell object passed\n");	936	LOG (llevError, "cast_spell: null spell object passed\n");
1123	return 0;	937	return 0;
…		…
1134	}	948	}
1135		949
1136	/* if caster is a spell casting object, this normally shouldn't be	950	/* if caster is a spell casting object, this normally shouldn't be
1137	* an issue, because they don't have any spellpaths set up.	951	* an issue, because they don't have any spellpaths set up.
1138	*/	952	*/
1139	if (caster->path_denied & spell_ob->path_attuned && !QUERY_FLAG (caster, FLAG_WIZCAST))	953	if (caster->path_denied & spell_ob->path_attuned && !caster->flag [FLAG_WIZCAST])
1140	{	954	{
1141	new_draw_info (NDI_UNIQUE, 0, op, "That spell path is denied to you.");	955	op->failmsg ("That spell path is denied to you.");
1142	return 0;	956	return 0;
1143	}	957	}
		958
		959	object *skill = 0;
1144		960
1145	/* if it is a player casting the spell, and they are really casting it	961	/* if it is a player casting the spell, and they are really casting it
1146	* (vs it coming from a wand, scroll, or whatever else), do some	962	* (vs it coming from a wand, scroll, or whatever else), do some
1147	* checks. We let monsters do special things - eg, they	963	* checks. We let monsters do special things - eg, they
1148	* don't need the skill, bypass level checks, etc. The monster function	964	* don't need the SKILL, BYpass level checks, etc. The monster function
1149	* should take care of that.	965	* should take care of that.
1150	* Remove the wiz check here and move it further down - some spells	966	* Remove the wiz check here and move it further down - some spells
1151	* need to have the right skill pointer passed, so we need to	967	* need to have the right skill pointer passed, so we need to
1152	* at least process that code.	968	* at least process that code.
1153	*/	969	*/
1154	if (op->type == PLAYER && op == caster)	970	if (op->type == PLAYER && op == caster)
1155	{	971	{
1156	cast_level = caster_level (caster, spell_ob);
1157	if (spell_ob->skill)	972	if (spell_ob->skill)
1158	{	973	{
1159	skill = find_skill_by_name (op, spell_ob->skill);	974	skill = find_skill_by_name (op, spell_ob->skill);
		975
1160	if (!skill)	976	if (!skill)
1161	{	977	{
1162	new_draw_info_format (NDI_UNIQUE, 0, op, "You need the skill %s to cast %s.", &spell_ob->skill, &spell_ob->name);	978	op->failmsgf ("You need the %s skill to cast %s! "
		979	"H<You either need to learn the skill via a skill scroll "
		980	"or you need to wear a talisman, holy symbol or another skill tool.>",
		981	&spell_ob->skill, &spell_ob->name);
1163	return 0;	982	return 0;
1164	}	983	}
1165	if (min_casting_level (op, spell_ob) > cast_level && !QUERY_FLAG (op, FLAG_WIZ))	984
		985	const char *msg = "";
		986
		987	int caster_level = skill->level;
		988
		989	if (op->path_attuned & spell_ob->path_attuned)
1166	{	990	{
1167	new_draw_info (NDI_UNIQUE, 0, op, "You lack enough skill to cast that spell.");	991	caster_level += min (caster_level, ATTUNE_REPELL);
		992	msg = " (attuned)";
		993	}
		994
		995	if (op->path_repelled & spell_ob->path_attuned)
		996	{
		997	caster_level -= ATTUNE_REPELL; // negative is ok
		998	msg = " (repelled)";
		999	}
		1000
		1001	if (spell_ob->level > caster_level)
		1002	{
		1003	op->failmsgf ("You lack enough skill to cast that spell! "
		1004	"H<Your effective cast level is %d%s, but level %d is required.>",
		1005	caster_level, msg, spell_ob->level);
		1006	if (!op->is_wiz ())
1168	return 0;	1007	return 0;
1169	}	1008	}
1170	}	1009	}
		1010
1171	/* If the caster is the wiz, they don't ever fail, and don't have	1011	/* If the caster is the wiz, they don't ever fail, and don't have
1172	* to have sufficient grace/mana.	1012	* to have sufficient grace/mana.
1173	*/	1013	*/
1174	if (!QUERY_FLAG (op, FLAG_WIZ))	1014	if (!op->flag [FLAG_WIZCAST])
1175	{	1015	{
1176	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&	1016	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&
1177	SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) > op->stats.sp)	1017	SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) > op->stats.sp)
1178	{	1018	{
1179	new_draw_info (NDI_UNIQUE, 0, op, "You don't have enough mana.");	1019	op->failmsg ("You don't have enough mana!");
1180	return 0;	1020	return 0;
1181	}	1021	}
		1022
1182	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) &&	1023	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) &&
1183	SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) > op->stats.grace)	1024	SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) > op->stats.grace)
1184	{	1025	{
1185	if (random_roll (0, op->stats.Wis - 1, op, PREFER_HIGH) + op->stats.grace -	1026	if (random_roll (0, op->stats.Wis - 1, op, PREFER_HIGH) + op->stats.grace -
1186	10 * SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) / op->stats.maxgrace > 0)	1027	10 * SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) / op->stats.maxgrace > 0)
1187	{
1188	new_draw_info_format (NDI_UNIQUE, 0, op, "%s grants your prayer, though you are unworthy.", godname);	1028	op->statusmsg (format ("%s grants your prayer, though you are unworthy.", godname));
1189	}
1190	else	1029	else
1191	{	1030	{
1192	prayer_failure (op, op->stats.grace, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) - op->stats.grace);	1031	prayer_failure (op, op->stats.grace, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE) - op->stats.grace);
1193	new_draw_info_format (NDI_UNIQUE, 0, op, "%s ignores your prayer.", godname);	1032	op->failmsgf ("%s ignores your prayer.", godname);
1194	return 0;	1033	return 0;
1195	}	1034	}
1196	}	1035	}
1197		1036
1198	/* player/monster is trying to cast the spell. might fumble it */	1037	/* player/monster is trying to cast the spell. might fumble it */
1199	if (spell_ob->stats.grace && random_roll (0, 99, op, PREFER_HIGH) <	1038	if (spell_ob->stats.grace && random_roll (0, 99, op, PREFER_HIGH) <
1200	(spell_ob->level / (float) MAX (1, op->level) * cleric_chance[op->stats.Wis]))	1039	(spell_ob->level / (float) max (1, op->level) * cleric_chance[op->stats.Wis]))
1201	{	1040	{
1202	play_sound_player_only (op->contr, SOUND_FUMBLE_SPELL, 0, 0);	1041	op->contr->play_sound (sound_find ("fumble_spell"));
1203	new_draw_info (NDI_UNIQUE, 0, op, "You fumble the spell.");	1042	op->failmsg ("You fumble the prayer.");
1204	if (settings.casting_time == TRUE)	1043
1205	{
1206	op->casting_time = -1;
1207	}
1208	op->stats.grace -= random_roll (1, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE), op, PREFER_LOW);	1044	op->stats.grace -= random_roll (1, SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE), op, PREFER_LOW);
1209	return 0;	1045	return 0;
1210	}	1046	}
1211	else if (spell_ob->stats.sp)	1047	else if (spell_ob->stats.sp)
1212	{	1048	{
1213	int failure = random_roll (0, 199, op, PREFER_HIGH) - op->contr->encumbrance + op->level - spell_ob->level + 35;	1049	int failure = random_roll (0, 199, op, PREFER_HIGH) - op->contr->encumbrance + op->level - spell_ob->level + 35;
1214		1050
1215	if (failure < 0)	1051	if (failure < 0)
1216	{	1052	{
1217	new_draw_info (NDI_UNIQUE, 0, op, "You bungle the spell because you have too much heavy equipment in use.");	1053	op->failmsg ("You bungle the spell because you have too much heavy equipment in use.");
1218	if (settings.spell_failure_effects == TRUE)	1054	if (settings.spell_failure_effects == TRUE)
1219	spell_failure (op, failure, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), skill);	1055	spell_failure (op, failure, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), skill);
1220	op->contr->shoottype = (rangetype) old_shoottype;	1056
1221	op->stats.sp -= random_roll (0, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), op, PREFER_LOW);	1057	op->stats.sp -= random_roll (0, SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA), op, PREFER_LOW);
1222	return 0;	1058	return 0;
1223	}	1059	}
1224	}	1060	}
1225	}	1061	}
1226	}	1062	}
1227		1063
1228	mflags = get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL);	1064	int mflags = op->ms ().flags ();
1229		1065
1230	/* See if we can cast a spell here. If the caster and op are	1066	/* See if we can cast a spell here. If the caster and op are
1231	* not alive, then this would mean that the mapmaker put the	1067	* not alive, then this would mean that the mapmaker put the
1232	* objects on the space - presume that they know what they are	1068	* objects on the space - presume that they know what they are
1233	* doing.	1069	* doing.
1234	*/	1070	*/
1235		1071
1236	if ((mflags & P_SAFE) && !QUERY_FLAG (op, FLAG_WIZCAST)) // There is _ABSOLUTELY_ no magic allowed here (except wizards :-)!	1072	if ((mflags & P_SAFE) && !op->flag [FLAG_WIZCAST]) // There is _ABSOLUTELY_ no magic allowed here (except wizards :-)!
1237	{	1073	{
		1074	op->speed_left -= 2 * op->speed; // freeze for two ticks, so we don't flood
1238	new_draw_info (NDI_UNIQUE, 0, op, "This ground is sacred! The gods prevent any magical effects done by you here!.");	1075	op->failmsg ("This ground is sacred! The gods prevent any magical effects done by you here!");
1239	return 0;	1076	return 0;
1240	}	1077	}
1241		1078
1242	if ((spell_ob->type == SPELL)	1079	if ((spell_ob->type == SPELL)
1243	&& (caster->type != POTION)	1080	&& (caster->type != POTION)
1244	&& !QUERY_FLAG (op, FLAG_WIZCAST)	1081	&& !op->flag [FLAG_WIZCAST]
1245	&& (QUERY_FLAG (caster, FLAG_ALIVE)	1082	&& (caster->flag [FLAG_ALIVE]
1246	\|\| QUERY_FLAG (op, FLAG_ALIVE))	1083	\|\| op->flag [FLAG_ALIVE])
1247	&& (((mflags & P_NO_MAGIC) && spell_ob->stats.sp) \|\| ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)))	1084	&& (((mflags & P_NO_MAGIC) && spell_ob->stats.sp) \|\| ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)))
1248	{	1085	{
1249	if (op->type != PLAYER)	1086	if (op->type != PLAYER)
1250	return 0;	1087	return 0;
1251		1088
1252	if ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)	1089	if ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)
1253	new_draw_info_format (NDI_UNIQUE, 0, op, "This ground is unholy! %s ignores you.", godname);	1090	op->failmsgf ("This ground is unholy! %s ignores you.", godname);
1254	else	1091	else if (object *item = op->contr->ranged_ob)
1255	switch (op->contr->shoottype)
1256	{	1092	{
1257	case range_magic:	1093	if (item->type == SPELL)
1258	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks your spellcasting.");	1094	op->failmsg ("Something blocks your spellcasting.");
1259	break;	1095	else if (item->type == SCROLL)
1260	case range_misc:	1096	op->failmsg ("Something blocks the magic of your scroll.");
1261	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks the magic of your item.");
1262	break;
1263	case range_golem:
1264	new_draw_info (NDI_UNIQUE, 0, op, "Something blocks the magic of your scroll.");
1265	break;
1266	default:
1267	break;
1268	}
1269	return 0;
1270	}
1271
1272	if (caster == op && settings.casting_time == TRUE && spell_ob->type == SPELL)
1273	{
1274	if (op->casting_time == -1)
1275	{ /* begin the casting */
1276	op->casting_time = (sint16) (spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob));
1277	op->spell = spell_ob;
1278	/* put the stringarg into the object struct so that when the
1279	* spell is actually cast, it knows about the stringarg.
1280	* necessary for the invoke command spells.
1281	*/
1282	if (stringarg)
1283	{
1284	op->spellarg = strdup_local (stringarg);
1285	}
1286	else	1097	else
1287	op->spellarg = NULL;	1098	op->failmsg ("Something blocks the magic of your item.");
1288	return 0;
1289	}
1290	else if (op->casting_time != 0)
1291	{
1292	if (op->type == PLAYER)
1293	new_draw_info (NDI_UNIQUE, 0, op, "You are casting!");
1294	return 0;
1295	}	1099	}
1296	else	1100	else
1297	{ /* casting_time == 0 */	1101	op->failmsg ("Something blocks the spell!");
1298	op->casting_time = -1;	1102
1299	spell_ob = op->spell;	1103	return 0;
1300	stringarg = op->spellarg;
1301	}
1302	}
1303	else
1304	{	1104	}
		1105
		1106	// undo the flood protection from earlier
		1107	op->speed_left += 4 * op->speed; // ~0.5s on failure
		1108
1305	/* Take into account how long it takes to cast the spell.	1109	/* Take into account how long it takes to cast the spell.
1306	* if the player is casting it, then we use the time in	1110	* if the player is casting it, then we use the time in
1307	* the spell object. If it is a spell object, have it	1111	* the spell object. If it is a spell object, have it
1308	* take two ticks. Things that cast spells on the players	1112	* take two ticks. Things that cast spells on the players
1309	* behalf (eg, altars, and whatever else) shouldn't cost	1113	* behalf (eg, altars, and whatever else) shouldn't cost
1310	* the player any time.	1114	* the player any time.
1311	* Ignore casting time for firewalls	1115	* Ignore casting time for firewalls
		1116	*/
		1117	if (caster == op && caster->type != FIREWALL)
		1118	{
		1119	op->speed_left -= spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * op->speed;
		1120	/* Other portions of the code may also decrement the speed of the player, so
		1121	* put a lower limit so that the player isn't stuck here too long
1312	*/	1122	*/
1313	if (caster == op && caster->type != FIREWALL)
1314	{
1315	op->speed_left -= spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * FABS (op->speed);
1316	/* Other portions of the code may also decrement the speed of the player, so
1317	* put a lower limit so that the player isn't stuck here too long
1318	*/
1319	if ((spell_ob->casting_time > 0) && op->speed_left < -spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * FABS (op->speed))	1123	if ((spell_ob->casting_time > 0) && op->speed_left < -spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * op->speed)
1320	op->speed_left = -spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * FABS (op->speed);	1124	op->speed_left = -spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * op->speed;
1321	}	1125	}
1322	else if (caster->type == WAND \|\| caster->type == HORN \|\| caster->type == ROD \|\| caster->type == POTION \|\| caster->type == SCROLL)	1126	else if (caster->type == WAND \|\| caster->type == HORN \|\| caster->type == ROD \|\| caster->type == POTION \|\| caster->type == SCROLL)
1323	{
1324	op->speed_left -= 2 * FABS (op->speed);	1127	op->speed_left -= 2 * op->speed;
1325	}
1326	}
1327		1128
1328	if (op->type == PLAYER && op == caster)	1129	if (op->type == PLAYER && op == caster)
1329	{	1130	{
1330	op->stats.grace -= SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE);	1131	op->stats.grace -= SP_level_spellpoint_cost (caster, spell_ob, SPELL_GRACE);
1331	op->stats.sp -= SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA);	1132	op->stats.sp -= SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA);
…		…
1336	* object requires.	1137	* object requires.
1337	*/	1138	*/
1338	if (op != caster && !skill && caster->skill)	1139	if (op != caster && !skill && caster->skill)
1339	{	1140	{
1340	skill = find_skill_by_name (op, caster->skill);	1141	skill = find_skill_by_name (op, caster->skill);
		1142
1341	if (!skill)	1143	if (!skill)
1342	{	1144	{
1343	new_draw_info_format (NDI_UNIQUE, 0, op, "You lack the skill %s to use the %s", &caster->skill, query_name (caster));	1145	op->failmsgf ("You lack the %s skill, which is required to use the %s!", &caster->skill, query_name (caster));
1344	return 0;	1146	return 0;
1345	}	1147	}
1346	change_skill (op, skill, 0); /* needed for proper exp credit */
1347	}	1148	}
		1149
		1150	if (INVOKE_OBJECT (CAST_SPELL, spell_ob, ARG_OBJECT (op), ARG_OBJECT (caster), ARG_INT (dir), ARG_STRING (spellparam)))
		1151	return RESULT_INT (0);
		1152
		1153	// temporaroly replace chosen_skill by skill, we assume skill could be applied,
		1154	// at least temporarily, which might not be true due to slot restrictions, but hey
		1155	// invoke requires it basically.
		1156
		1157	object *chosen_skill = op->chosen_skill;
		1158	op->chosen_skill = skill;
1348		1159
1349	switch (spell_ob->subtype)	1160	switch (spell_ob->subtype)
1350	{	1161	{
1351	/* The order of case statements is same as the order they show up	1162	/* The order of case statements is same as the order they show up
1352	* in in spells.h.	1163	* in spells.h.
1353	*/	1164	*/
1354	case SP_RAISE_DEAD:	1165	case SP_RAISE_DEAD:
1355	success = cast_raise_dead_spell (op, caster, spell_ob, dir, stringarg);	1166	success = cast_raise_dead_spell (op, caster, spell_ob, dir, spellparam);
1356	break;	1167	break;
1357		1168
1358	case SP_RUNE:	1169	case SP_RUNE:
1359	success = write_rune (op, caster, spell_ob, dir, stringarg);	1170	success = write_rune (op, caster, spell_ob, dir, spellparam);
1360	break;	1171	break;
1361		1172
1362	case SP_MAKE_MARK:	1173	case SP_MAKE_MARK:
1363	success = write_mark (op, spell_ob, stringarg);	1174	success = write_mark (op, spell_ob, spellparam);
1364	break;	1175	break;
1365		1176
1366	case SP_BOLT:	1177	case SP_BOLT:
1367	success = fire_bolt (op, caster, dir, spell_ob, skill);	1178	success = fire_bolt (op, caster, dir, spell_ob, skill);
1368	break;	1179	break;
…		…
1386	case SP_SMITE:	1197	case SP_SMITE:
1387	success = cast_smite_spell (op, caster, dir, spell_ob);	1198	success = cast_smite_spell (op, caster, dir, spell_ob);
1388	break;	1199	break;
1389		1200
1390	case SP_MAGIC_MISSILE:	1201	case SP_MAGIC_MISSILE:
1391	success = fire_arch_from_position (op, caster, op->x + freearr_x[dir], op->y + freearr_y[dir], dir, spell_ob);	1202	success = fire_arch_from_position (op, caster, op->x, op->y, dir, spell_ob);
1392	break;	1203	break;
1393		1204
1394	case SP_SUMMON_GOLEM:	1205	case SP_SUMMON_GOLEM:
1395	success = summon_golem (op, caster, dir, spell_ob);	1206	success = summon_golem (op, caster, dir, spell_ob);
1396	old_shoottype = range_golem;
1397	break;	1207	break;
1398		1208
1399	case SP_DIMENSION_DOOR:	1209	case SP_DIMENSION_DOOR:
1400	/* dimension door needs the actual caster, because that is what is	1210	/* dimension door needs the actual caster, because that is what is
1401	* moved.	1211	* moved.
1402	*/	1212	*/
1403	success = dimension_door (op, caster, spell_ob, dir);	1213	success = dimension_door (op, caster, spell_ob, dir, spellparam);
1404	break;	1214	break;
1405		1215
1406	case SP_MAGIC_MAPPING:	1216	case SP_MAGIC_MAPPING:
1407	if (op->type == PLAYER)	1217	if (op->type == PLAYER)
1408	{	1218	{
…		…
1441	case SP_HEALING:	1251	case SP_HEALING:
1442	success = cast_heal (op, caster, spell_ob, dir);	1252	success = cast_heal (op, caster, spell_ob, dir);
1443	break;	1253	break;
1444		1254
1445	case SP_CREATE_FOOD:	1255	case SP_CREATE_FOOD:
1446	success = cast_create_food (op, caster, spell_ob, dir, stringarg);	1256	success = cast_create_food (op, caster, spell_ob, dir, spellparam);
1447	break;	1257	break;
1448		1258
1449	case SP_EARTH_TO_DUST:	1259	case SP_EARTH_TO_DUST:
1450	success = cast_earth_to_dust (op, caster, spell_ob);	1260	success = cast_earth_to_dust (op, caster, spell_ob);
1451	break;	1261	break;
…		…
1461	case SP_CURSE:	1271	case SP_CURSE:
1462	success = cast_curse (op, caster, spell_ob, dir);	1272	success = cast_curse (op, caster, spell_ob, dir);
1463	break;	1273	break;
1464		1274
1465	case SP_SUMMON_MONSTER:	1275	case SP_SUMMON_MONSTER:
1466	success = summon_object (op, caster, spell_ob, dir, stringarg);	1276	success = summon_object (op, caster, spell_ob, dir, spellparam);
1467	break;	1277	break;
1468		1278
1469	case SP_CHARGING:	1279	case SP_CHARGING:
1470	success = recharge (op, caster, spell_ob);	1280	success = recharge (op, caster, spell_ob);
1471	break;	1281	break;
…		…
1474	#ifdef NO_POLYMORPH	1284	#ifdef NO_POLYMORPH
1475	/* Not great, but at least provide feedback so if players do have	1285	/* Not great, but at least provide feedback so if players do have
1476	* polymorph (ie, find it as a preset item or left over from before	1286	* polymorph (ie, find it as a preset item or left over from before
1477	* it was disabled), they get some feedback.	1287	* it was disabled), they get some feedback.
1478	*/	1288	*/
1479	new_draw_info (NDI_UNIQUE, 0, op, "The spell fizzles");	1289	op->failmsg ("The spell fizzles!");
1480	success = 0;	1290	success = 0;
1481	#else	1291	#else
1482	success = cast_polymorph (op, caster, spell_ob, dir);	1292	success = cast_polymorph (op, caster, spell_ob, dir);
1483	#endif	1293	#endif
1484	break;	1294	break;
…		…
1504	break;	1314	break;
1505		1315
1506	case SP_MOVING_BALL:	1316	case SP_MOVING_BALL:
1507	if (spell_ob->path_repelled && (spell_ob->path_repelled & caster->path_attuned) != spell_ob->path_repelled)	1317	if (spell_ob->path_repelled && (spell_ob->path_repelled & caster->path_attuned) != spell_ob->path_repelled)
1508	{	1318	{
1509	new_draw_info_format (NDI_UNIQUE, 0, op, "You lack the proper attunement to cast %s", &spell_ob->name);	1319	op->failmsgf ("You lack the proper attunement to cast %s!", &spell_ob->name);
1510	success = 0;	1320	success = 0;
1511	}	1321	}
1512	else	1322	else
1513	success = fire_arch_from_position (op, caster, op->x + freearr_x[dir], op->y + freearr_y[dir], dir, spell_ob);	1323	success = fire_arch_from_position (op, caster, op->x, op->y, dir, spell_ob);
1514	break;	1324	break;
1515		1325
1516	case SP_SWARM:	1326	case SP_SWARM:
1517	success = fire_swarm (op, caster, spell_ob, dir);	1327	success = fire_swarm (op, caster, spell_ob, dir);
1518	break;	1328	break;
…		…
1525	/* in rune.c */	1335	/* in rune.c */
1526	success = dispel_rune (op, caster, spell_ob, skill, dir);	1336	success = dispel_rune (op, caster, spell_ob, skill, dir);
1527	break;	1337	break;
1528		1338
1529	case SP_CREATE_MISSILE:	1339	case SP_CREATE_MISSILE:
1530	success = cast_create_missile (op, caster, spell_ob, dir, stringarg);	1340	success = cast_create_missile (op, caster, spell_ob, dir, spellparam);
1531	break;	1341	break;
1532		1342
1533	case SP_CONSECRATE:	1343	case SP_CONSECRATE:
1534	success = cast_consecrate (op, caster, spell_ob);	1344	success = cast_consecrate (op, caster, spell_ob);
1535	break;	1345	break;
1536		1346
1537	case SP_ANIMATE_WEAPON:	1347	case SP_ANIMATE_WEAPON:
1538	success = animate_weapon (op, caster, spell_ob, dir);	1348	success = animate_weapon (op, caster, spell_ob, dir);
1539	old_shoottype = range_golem;
1540	break;	1349	break;
1541		1350
1542	case SP_LIGHT:	1351	case SP_LIGHT:
1543	success = cast_light (op, caster, spell_ob, dir);	1352	success = cast_light (op, caster, spell_ob, dir);
1544	break;	1353	break;
…		…
1557		1366
1558	case SP_AURA:	1367	case SP_AURA:
1559	success = create_aura (op, caster, spell_ob);	1368	success = create_aura (op, caster, spell_ob);
1560	break;	1369	break;
1561		1370
1562	case SP_TOWN_PORTAL:
1563	success = cast_create_town_portal (op, caster, spell_ob, dir);
1564	break;
1565
1566	case SP_PARTY_SPELL:	1371	case SP_PARTY_SPELL:
1567	success = cast_party_spell (op, caster, dir, spell_ob, stringarg);	1372	success = cast_party_spell (op, caster, dir, spell_ob, spellparam);
1568	break;	1373	break;
1569		1374
1570	default:	1375	default:
1571	if (!INVOKE_OBJECT (CAST_SPELL, spell_ob, ARG_OBJECT (op), ARG_OBJECT (caster), ARG_INT (dir), ARG_STRING (stringarg)))
1572	LOG (llevError, "cast_spell: Unhandled spell subtype %d\n", spell_ob->subtype);	1376	LOG (llevError, "cast_spell: Unhandled spell subtype %d\n", spell_ob->subtype);
1573	}
1574
1575	/* FIXME - we need some better sound suppport */
1576	// yes, for example, augment map info with the spell effect
1577	// so clients can calculate the sounds themselves
1578	//play_sound_map(op->map, op->x, op->y, SOUND_CAST_SPELL_0 + spell_ob->subtype);
1579
1580	/* free the spell arg */
1581	if (settings.casting_time == TRUE && stringarg)
1582	{	1377	}
1583	free (stringarg);	1378
1584	stringarg = NULL;	1379	// restore chosen_skill
1585	}	1380	op->chosen_skill = chosen_skill;
1586	/* perhaps a bit of a hack, but if using a wand, it has to change the skill	1381
1587	* to something like use_magic_item, but you really want to be able to fire	1382	op->play_sound (
1588	* it again.	1383	success
1589	*/	1384	? spell_ob->sound
1590	if (op->contr)	1385	? spell_ob->sound
1591	op->contr->shoottype = (rangetype) old_shoottype;	1386	: sound_find ("spell_success")
		1387	: sound_find ("fumble_spell")
		1388	);
1592		1389
1593	return success;	1390	return success;
1594	}	1391	}
1595		1392
1596
1597	/* This is called from time.c/process_object(). That function	1393	/* This is called from time.c/process_object(). That function
1598	* calls this for any SPELL_EFFECT type objects. This function	1394	* calls this for any SPELL_EFFECT type objects. This function
1599	* then dispatches them to the appropriate specific routines.	1395	* then dispatches them to the appropriate specific routines.
1600	*/	1396	*/
1601	void	1397	void
1602	move_spell_effect (object *op)	1398	move_spell_effect (object *op)
1603	{	1399	{
…		…
1643	move_aura (op);	1439	move_aura (op);
1644	break;	1440	break;
1645	}	1441	}
1646	}	1442	}
1647		1443
1648	/* this checks to see if something special should happen if
1649	* something runs into the object.
1650	*/
1651	void
1652	check_spell_effect (object *op)
1653	{
1654	switch (op->subtype)
1655	{
1656	case SP_BOLT:
1657	move_bolt (op);
1658	return;
1659
1660	case SP_BULLET:
1661	check_bullet (op);
1662	return;
1663	}
1664	}
1665
1666	/* This is called by move_apply. Basically, if someone	1444	/* This is called by move_apply. Basically, if someone
1667	* moves onto a spell effect and the walk_on or fly_on flags	1445	* moves onto a spell effect and the walk_on or fly_on flags
1668	* are set, this is called. This should only be called for	1446	* are set, this is called. This should only be called for
1669	* objects of the appropraite type.	1447	* objects of the appropriate type.
1670	*/	1448	*/
1671	void	1449	void
1672	apply_spell_effect (object spell, object victim)	1450	apply_spell_effect (object spell, object victim)
1673	{	1451	{
1674	switch (spell->subtype)	1452	switch (spell->subtype)
1675	{	1453	{
1676	case SP_CONE:	1454	case SP_CONE:
1677	if (QUERY_FLAG (victim, FLAG_ALIVE) && spell->speed && spell->attacktype)	1455	if (victim->flag [FLAG_ALIVE] && spell->has_active_speed () && spell->attacktype)
1678	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 0);	1456	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 0);
1679	break;	1457	break;
1680		1458
1681	case SP_MAGIC_MISSILE:	1459	case SP_MAGIC_MISSILE:
1682	if (QUERY_FLAG (victim, FLAG_ALIVE))	1460	if (victim->flag [FLAG_ALIVE])
1683	{	1461	{
1684	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);	1462	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);
1685
1686	if (!spell->destroyed ())
1687	{
1688	spell->remove ();
1689	spell->destroy (0);	1463	spell->destroy ();
1690	}
1691	}	1464	}
1692	break;	1465	break;
1693		1466
1694	case SP_MOVING_BALL:	1467	case SP_MOVING_BALL:
1695	if (QUERY_FLAG (victim, FLAG_ALIVE))	1468	if (victim->flag [FLAG_ALIVE])
1696	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);	1469	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);
1697	else if (victim->material \|\| victim->materialname)	1470	else if (victim->material != MATERIAL_NULL)
1698	save_throw_object (victim, spell->attacktype, spell);	1471	save_throw_object (victim, spell->attacktype, spell);
		1472
1699	break;	1473	break;
1700	}	1474	}
1701	}	1475	}
		1476
		1477	/**
		1478	* This function will let a fireball explode at the position of
		1479	* the victim with a specific maximum level.
		1480	*/
		1481	void
		1482	create_exploding_ball_at (object *victim, int level)
		1483	{
		1484	object *ball = archetype::get (EXPLODING_FIREBALL);
		1485	ball->dam_modifier = random_roll (1, level, victim, PREFER_LOW) / 5 + 1;
		1486	ball->stats.maxhp = random_roll (1, level, victim, PREFER_LOW) / 10 + 2;
		1487	ball->insert_at (victim);
		1488	}

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Comparing deliantra/server/server/spell_util.C (file contents): Revision 1.19 by root, Tue Dec 12 20:53:03 2006 UTC vs. Revision 1.128 by root, Wed Nov 16 23:42:03 2016 UTC

Diff Legend

Comparing deliantra/server/server/spell_util.C (file contents):
Revision 1.19 by root, Tue Dec 12 20:53:03 2006 UTC vs.
Revision 1.128 by root, Wed Nov 16 23:42:03 2016 UTC