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

Comparing deliantra/server/server/spell_util.C (file contents):
Revision 1.73 by root, Sat May 17 14:11:13 2008 UTC vs.
Revision 1.128 by root, Wed Nov 16 23:42:03 2016 UTC

…		…
1	/*	1	/*
2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	*	3	*
4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team	4	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001 Mark Wedel & Crossfire Development Team
6	* Copyright (©) 1992,2007 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
7	*	7	*
8	* Deliantra is free software: you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
9	* it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
10	* the Free Software Foundation, either version 3 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
11	* (at your option) any later version.	11	* option) any later version.
12	*	12	*
13	* This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License for more details.	16	* GNU General Public License for more details.
17	*	17	*
18	* You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
19	* along with this program. If not, see <http://www.gnu.org/licenses/>.	19	* and the GNU General Public License along with this program. If not, see
		20	* <http://www.gnu.org/licenses/>.
20	*	21	*
21	* The authors can be reached via e-mail to <support@deliantra.net>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24	#include <global.h>	25	#include <global.h>
25	#include <spells.h>	26	#include <spells.h>
33	/* 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
34	* 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
35	* matching spells are used.	36	* matching spells are used.
36	*/	37	*/
37	object *	38	object *
38	find_random_spell_in_ob (object ob, const char skill)	39	find_random_spell_in_ob (object *ob, shstr_cmp skill)
39	{	40	{
40	int k = 0, s;	41	int k = 0, s;
41	object *tmp;
42		42
43	for (tmp = ob->inv; tmp; tmp = tmp->below)	43	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
44	if (tmp->type == SPELL && (!skill \|\| tmp->skill == skill))	44	if (tmp->type == SPELL && (!skill \|\| tmp->skill == skill))
45	k++;	45	k++;
46		46
47	/* No spells, no need to progess further */	47	/* No spells, no need to progess further */
48	if (!k)	48	if (!k)
49	return NULL;	49	return NULL;
50		50
51	s = RANDOM () % k;	51	s = rndm (k);
52		52
53	for (tmp = ob->inv; tmp; tmp = tmp->below)	53	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
54	if (tmp->type == SPELL && (!skill \|\| tmp->skill == skill))	54	if (tmp->type == SPELL && (!skill \|\| tmp->skill == skill))
55	{
56	if (!s)	55	if (!s)
57	return tmp;	56	return tmp;
58	else	57	else
59	s--;	58	s--;
60	}	59
61	/* Should never get here, but just in case */	60	/* Should never get here, but just in case */
62	return NULL;	61	return 0;
63	}	62	}
64		63
65	/* Relatively simple function that gets used a lot.	64	/* Relatively simple function that gets used a lot.
66	* Basically, it sets up the skill pointer for the spell being	65	* Basically, it sets up the skill pointer for the spell being
67	* cast. If op is really casting the spell, then the skill	66	* cast. If op is really casting the spell, then the skill
…		…
84	*/	83	*/
85	void	84	void
86	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)
87	{	86	{
88	if (spob->other_arch)	87	if (spob->other_arch)
89	map->insert (arch_to_object (spob->other_arch), x, y, originator);	88	map->insert (spob->other_arch->instance (), x, y, originator);
90	}	89	}
91		90
92	/*	91	static int
93	* This function takes a caster and spell and presents the	92	attuned_bonus (object caster, object spell, int level)
94	* effective level the caster needs to be to cast the spell.
95	* basically, it just adjusts the spell->level with attuned/repelled
96	* spellpaths. Was called path_level_mod.
97	*
98	* caster is person casting the spell.
99	* spell is the spell object.
100	* Returns modified level.
101	*/
102	int
103	min_casting_level (object caster, object spell)
104	{	93	{
105	if (caster->path_denied & spell->path_attuned)	94	// compute the attuned/repelled bonus
106	return 1;	95	// attuned only increases up to 2 times the original level (i.e. bonus <= level) */
107		96	// repell has no such quarrels
108	int new_level = spell->level	97	return (caster->path_attuned & spell->path_attuned ? min (level, +ATTUNE_REPELL) : 0)
109	+ (caster->path_repelled & spell->path_attuned ? +8 : 0)	98	+ (caster->path_repelled & spell->path_attuned ? -ATTUNE_REPELL : 0);
110	+ (caster->path_attuned & spell->path_attuned ? -8 : 0);
111
112	return max (1, new_level);
113	}	99	}
114		100
115	/* This function returns the effective level the spell	101	/* This function returns the effective level the spell
116	* is being cast at.	102	* is being cast at.
117	* Note that I changed the repelled/attuned bonus to 2 from 5.
118	* This is because the new code compares casting_level against
119	* min_caster_level, so the difference is effectively 4
120	*/	103	*/
121	int	104	int
122	caster_level (object caster, object spell)	105	casting_level (object caster, object spell)
123	{	106	{
124	int level = caster->level;	107	int level = caster->level;
125		108
126	/* 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. */
127	if (caster->type == ROD && caster->env && caster->env->type == PLAYER)	110	if (caster->type == ROD && caster->env && caster->env->type == PLAYER)
…		…
129	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);
130	int sk_level = skill ? skill->level : 1;	113	int sk_level = skill ? skill->level : 1;
131		114
132	level = min (level, sk_level + level / 10 + 1);	115	level = min (level, sk_level + level / 10 + 1);
133	}	116	}
134	else if (caster->type == PLAYER && spell->skill) /* If this is a player, try to find the matching skill */	117	else if (caster->type == PLAYER) /* If this is a player, try to find the matching skill */
135	for (int i = 0; i < NUM_SKILLS; i++)	118	if (object *skill = caster->contr->find_skill (spell->skill))
136	if (caster->contr->last_skill_ob[i] && caster->contr->last_skill_ob[i]->skill == spell->skill)	119	level = skill->level;
137	{
138	level = caster->contr->last_skill_ob[i]->level;
139	break;
140	}
141		120
142	/* Got valid caster level. Now adjust for attunement */	121	int bonus = attuned_bonus (caster, spell, level);
143	level += caster->path_repelled & spell->path_attuned ? -8 : 0;	122
144	level += caster->path_attuned & spell->path_attuned ? +8 : 0;	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);
145		128
146	/* 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
147	* errors in various places.	130	* errors in various places.
148	*/	131	*/
149	return max (level, 1);	132	return clamp (level, 1, settings.max_level);
150	}	133	}
151		134
152	/* The following function scales the spellpoint cost of	135	/* The following function scales the spellpoint cost of
153	* a spell by it's increased effectiveness. Some of the	136	* a spell by it's increased effectiveness. Some of the
154	* lower level spells become incredibly vicious at high	137	* lower level spells become incredibly vicious at high
…		…
158	* caster is what is casting the spell, can be op.	141	* caster is what is casting the spell, can be op.
159	* spell is the spell object.	142	* spell is the spell object.
160	* 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
161	* mana. In that case, we return which ever value is higher.	144	* mana. In that case, we return which ever value is higher.
162	*/	145	*/
163
164	sint16	146	sint16
165	SP_level_spellpoint_cost (object caster, object spell, int flags)	147	SP_level_spellpoint_cost (object caster, object spell, int flags)
166	{	148	{
167	int sp, grace, level = caster_level (caster, spell);	149	int sp, grace, level = casting_level (caster, spell);
168		150
169	if (settings.spellpoint_level_depend == TRUE)	151	if (settings.spellpoint_level_depend == TRUE)
170	{	152	{
171	if (spell->stats.sp && spell->stats.maxsp)	153	if (spell->stats.sp && spell->stats.maxsp)
172	{
173	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));
174	}
175	else	155	else
176	sp = spell->stats.sp;	156	sp = spell->stats.sp;
177		157
178	sp *= (int) PATH_SP_MULT (caster, spell);	158	sp *= (int) PATH_SP_MULT (caster, spell);
179	if (!sp && spell->stats.sp)	159	if (!sp && spell->stats.sp)
180	sp = 1;	160	sp = 1;
181		161
182	if (spell->stats.grace && spell->stats.maxgrace)	162	if (spell->stats.grace && spell->stats.maxgrace)
183	{
184	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));
185	}
186	else	164	else
187	grace = spell->stats.grace;	165	grace = spell->stats.grace;
188		166
189	grace *= (int) PATH_SP_MULT (caster, spell);	167	grace *= PATH_SP_MULT (caster, spell);
190	if (spell->stats.grace && !grace)	168	if (spell->stats.grace && !grace)
191	grace = 1;	169	grace = 1;
192	}	170	}
193	else	171	else
194	{	172	{
…		…
200	if (spell->stats.grace && !grace)	178	if (spell->stats.grace && !grace)
201	grace = 1;	179	grace = 1;
202	}	180	}
203		181
204	if (flags == SPELL_HIGHEST)	182	if (flags == SPELL_HIGHEST)
205	return MAX (sp, grace);	183	return max (sp, grace);
206	else if (flags == SPELL_GRACE)	184	else if (flags == SPELL_GRACE)
207	return grace;	185	return grace;
208	else if (flags == SPELL_MANA)	186	else if (flags == SPELL_MANA)
209	return sp;	187	return sp;
210	else	188	else
…		…
212	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);
213	return 0;	191	return 0;
214	}	192	}
215	}	193	}
216		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	}
		205
217	/* SP_level_dam_adjust: Returns adjusted damage based on the caster.	206	/* SP_level_dam_adjust: Returns adjusted damage based on the caster.
218	* spob is the spell we are adjusting.	207	* spob is the spell we are adjusting.
219	*/	208	*/
220	int	209	int
221	SP_level_dam_adjust (object caster, object spob)	210	SP_level_dam_adjust (object caster, object spob)
222	{	211	{
223	if (!spob->dam_modifier)	212	if (!spob->dam_modifier)
224	return 0;	213	return 0;
225		214
226	int level = caster_level (caster, spob);
227	return max (0, level - min_casting_level (caster, spob)) / spob->dam_modifier;	215	return SP_casting_level (caster, spob) / spob->dam_modifier;
228	}	216	}
229		217
230	/* Adjust the strength of the spell based on level.	218	/* Adjust the strength of the spell based on level.
231	* This is basically the same as SP_level_dam_adjust above,	219	* This is basically the same as SP_level_dam_adjust above,
232	* but instead looks at the level_modifier value.	220	* but instead looks at the level_modifier value.
…		…
235	SP_level_duration_adjust (object caster, object spob)	223	SP_level_duration_adjust (object caster, object spob)
236	{	224	{
237	if (!spob->duration_modifier)	225	if (!spob->duration_modifier)
238	return 0;	226	return 0;
239		227
240	int level = caster_level (caster, spob);
241	return max (0, level - min_casting_level (caster, spob)) / spob->duration_modifier;	228	return SP_casting_level (caster, spob) / spob->duration_modifier;
242	}	229	}
243		230
244	/* Adjust the strength of the spell based on level.	231	/* Adjust the strength of the spell based on level.
245	* This is basically the same as SP_level_dam_adjust above,	232	* This is basically the same as SP_level_dam_adjust above,
246	* but instead looks at the level_modifier value.	233	* but instead looks at the level_modifier value.
…		…
249	SP_level_range_adjust (object caster, object spob)	236	SP_level_range_adjust (object caster, object spob)
250	{	237	{
251	if (!spob->range_modifier)	238	if (!spob->range_modifier)
252	return 0;	239	return 0;
253		240
254	int level = caster_level (caster, spob);
255	return (level - min_casting_level (caster, spob)) / spob->range_modifier;	241	return SP_casting_level (caster, spob) / spob->range_modifier;
256	}	242	}
257		243
258	/* 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
259	* as an existing spell, we presume they know it.	245	* as an existing spell, we presume they know it.
260	* 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.
261	*/	247	*/
262	object *	248	object *
263	check_spell_known (object op, const char name)	249	check_spell_known (object *op, shstr_cmp name)
264	{	250	{
265	object *spop;	251	object *spop;
266	shstr_cmp name_ (name);
267		252
268	for (spop = op->inv; spop; spop = spop->below)	253	for (spop = op->inv; spop; spop = spop->below)
269	if (spop->type == SPELL && spop->name == name)	254	if (spop->type == SPELL && spop->name == name)
270	return spop;	255	return spop;
271		256
272	return 0;	257	return 0;
273	}	258	}
274		259
275		260	/*
276	/*
277	* Look at object 'op' and see if they know the spell	261	* Look at object 'op' and see if they know the spell
278	* spname. This is pretty close to check_spell_known	262	* spname. This is pretty close to check_spell_known
279	* above, but it uses a looser matching mechanism.	263	* above, but it uses a looser matching mechanism.
280	* returns the matching spell object, or NULL.	264	* returns the matching spell object, or NULL.
281	* If we match multiple spells but don't get an	265	* If we match multiple spells but don't get an
282	* exact match, we also return NULL.	266	* exact match, we also return NULL.
283	*/	267	*/
284
285	object *	268	object *
286	lookup_spell_by_name (object op, const char spname)	269	object::find_spell (const_utf8_string prefix) const
287	{	270	{
288	object spob1 = NULL, spob2 = NULL, *spob;	271	if (shstr_cmp name = prefix)
289	int nummatch = 0;	272	{
290		273	// case 1, match spell name exactly
291	if (spname == NULL)
292	return NULL;
293
294	/* Try to find the spell. We store the results in spob1
295	* and spob2 - spob1 is only taking the length of
296	* the past spname, spob2 uses the length of the spell name.
297	*/
298	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;
299	{	277	}
		278	else
		279	{
		280	// case 2, match prefix
		281	int len = strlen (prefix);
		282
		283	for (object *spob = inv; spob; spob = spob->below)
300	if (spob->type == SPELL)	284	if (spob->type == SPELL
301	{	285	&& spob->name.length () < len
302	if (!strncmp (spob->name, spname, strlen (spname)))	286	&& prefix [spob->name.length ()] <= ' '
303	{	287	&& !memcmp (prefix, spob->name, spob->name.length ()))
304	nummatch++;
305	spob1 = spob;
306	}
307	else if (!strncmp (spob->name, spname, strlen (spob->name)))
308	{
309	/* if spells have ambiguous names, it makes matching
310	* really difficult. (eg, fire and fireball would
311	* fall into this category). It shouldn't be hard to
312	* make sure spell names don't overlap in that fashion.
313	*/
314	if (spob2)
315	LOG (llevError, "Found multiple spells with overlapping base names: %s, %s\n", &spob2->name, &spob->name);
316	spob2 = spob;
317	}
318	}
319	}
320	/* if we have best match, return it. Otherwise, if we have one match
321	* on the loser match, return that, otehrwise null
322	*/
323	if (spob2)
324	return spob2;	288	return spob;
325	if (spob1 && nummatch == 1)	289	}
326	return spob1;	290
327	return NULL;	291	return 0;
328	}	292	}
329		293
330	/* reflwall - decides weither the (spell-)object sp_op will	294	/* reflwall - decides weither the (spell-)object sp_op will
331	* be reflected from the given mapsquare. Returns 1 if true.	295	* be reflected from the given mapsquare. Returns 1 if true.
332	* (Note that for living creatures there is a small chance that	296	* (Note that for living creatures there is a small chance that
…		…
335	* eg, updated for tiled maps.	299	* eg, updated for tiled maps.
336	*/	300	*/
337	int	301	int
338	reflwall (maptile m, int x, int y, object sp_op)	302	reflwall (maptile m, int x, int y, object sp_op)
339	{	303	{
340	object *op;
341
342	if (OUT_OF_REAL_MAP (m, x, y))	304	if (OUT_OF_REAL_MAP (m, x, y))
343	return 0;	305	return 0;
		306
344	for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above)	307	for (object *op = GET_MAP_OB (m, x, y); op; op = op->above)
345	if (QUERY_FLAG (op, FLAG_REFL_SPELL)	308	if (op->flag [FLAG_REFL_SPELL]
346	&& (!QUERY_FLAG (op, FLAG_ALIVE)	309	&& (!op->flag [FLAG_ALIVE]
347	\|\| (rndm (0, 99)) < 90 - (sp_op->level / 10)))	310	\|\| (rndm (0, 99)) < 90 - (sp_op->level / 10)))
348	return 1;	311	return 1;
349		312
350	return 0;	313	return 0;
351	}	314	}
352		315
353	/* cast_create_object: creates object new_op in direction dir	316	/* cast_create_object: creates object new_op in direction dir
354	* or if that is blocked, beneath the player (op).	317	* or if that is blocked, beneath the player (op).
355	* we pass 'caster', but don't use it for anything.	318	* we pass 'caster', but don't use it for anything.
356	* This is really just a simple wrapper function .	319	* This is really just a simple wrapper function .
357	* returns the direction that the object was actually placed	320	* returns true to indicate whether the operation was successful.
358	* in.	321	* destroys the object is unsuccessful.
359	*/	322	*/
360	int	323	bool
361	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)
362	{	325	{
363	maptile *m;	326	mapxy pos (op);
364	sint16 sx, sy;	327	pos.move (dir);
365		328
366	if (dir &&	329	if (!pos.normalise ()
367	((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
368	OB_TYPE_MOVE_BLOCK (op, GET_MAP_MOVE_BLOCK (m, sx, sy))))	331	\|\| !new_op->can_drop_at (pos.m, pos.x, pos.y)
369	{	332	)
370	new_draw_info (NDI_UNIQUE, 0, op, "Something is in the way.");
371	new_draw_info (NDI_UNIQUE, 0, op, "You cast it at your feet.");
372	dir = 0;
373	}	333	{
		334	op->failmsg ("Your spell fizzles! H<Something is in the way.>");
		335	new_op->destroy ();
		336	return 0;
		337	}
374		338
375	SET_FLAG (new_op, FLAG_IDENTIFIED);	339	new_op->set_flag (FLAG_IDENTIFIED);
376	op->map->insert (new_op,
377	op->x + freearr_x[dir], op->y + freearr_y[dir],
378	op,
379	dir ? 0 : INS_BELOW_ORIGINATOR);
380		340
		341	pos.insert (new_op, op, dir ? 0 : INS_BELOW_ORIGINATOR);
		342
381	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;
382	}	362	}
383		363
384	/* 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.
385	* immune_stop is basically the attacktype of the spell (why	365	* immune_stop is basically the attacktype of the spell (why
386	* passed as a different value, not sure of). If immune_stop	366	* passed as a different value, not sure of). If immune_stop
387	* has the AT_MAGIC bit set, and there is a counterwall	367	* has the AT_MAGIC bit set, and there is a counterwall
388	* 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
389	* 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.
390	*
391	*/	370	*/
392	int	371	int
393	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)
394	{	373	{
395	if (!xy_normalise (m, x, y))	374	if (!xy_normalise (m, x, y))
396	return 0;	375	return 0;
397		376
398	mapspace &ms = m->at (x, y);	377	mapspace &ms = m->at (x, y);
		378	ms.update ();
399		379
400	if (OB_TYPE_MOVE_BLOCK (op, ms.move_block))	380	if (OB_TYPE_MOVE_BLOCK (op, ms.move_block))
401	return 0;	381	return 0;
402		382
		383	int max_effects = 5; // max. number of similar spells per mapspace
		384
403	for (object *tmp = ms.bot; tmp; tmp = tmp->above)	385	for (object *tmp = ms.top; tmp; tmp = tmp->below)
404	{	386	{
405	/* If there is a counterspell on the space, and this	387	/* If there is a counterspell on the space, and this
406	* object is using magic, don't progress. I believe we could	388	* object is using magic, don't progress. I believe we could
407	* 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
408	* 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
…		…
410	* 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
411	* 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
412	* spell to actually hit the counterwall and be sucked up.	394	* spell to actually hit the counterwall and be sucked up.
413	*/	395	*/
414	if ((tmp->attacktype & AT_COUNTERSPELL)	396	if ((tmp->attacktype & AT_COUNTERSPELL)
415	&& !QUERY_FLAG (tmp, FLAG_MONSTER)	397	&& !tmp->flag [FLAG_MONSTER]
416	&& (tmp->type != PLAYER)	398	&& (tmp->type != PLAYER)
417	&& (tmp->type != WEAPON)	399	&& (tmp->type != WEAPON)
418	&& (tmp->type != BOW)	400	&& (tmp->type != BOW)
419	&& (tmp->type != ARROW)	401	&& (tmp->type != ARROW)
420	&& (tmp->type != GOLEM)	402	&& (tmp->type != GOLEM)
421	&& !QUERY_FLAG (tmp, FLAG_IS_FLOOR) // XXX:	403	&& !tmp->flag [FLAG_IS_FLOOR] // XXX:
422	// we special case floor here because there	404	// we special case floor here because there
423	// are sometimes spell effect floors	405	// are sometimes spell effect floors
424	// which are used to inflict damage	406	// which are used to inflict damage
425	// (and those shouldn't go away from	407	// (and those shouldn't go away from
426	// sanctuary) see also: permanent lava	408	// sanctuary) see also: permanent lava
427	&& (immune_stop & AT_MAGIC))	409	&& (immune_stop & AT_MAGIC))
428	return 0;	410	return 0;
429		411
430	/* This is to prevent 'out of control' spells. Basically, this
431	* limits one spell effect per space per spell. This is definately
432	* needed for performance reasons, and just for playability I believe.
433	* there are no such things as multispaced spells right now, so
434	* we don't need to worry about the head.
435	*/
436	if ((tmp->stats.maxhp == op->stats.maxhp) && (tmp->type == op->type) && (tmp->subtype == op->subtype))
437	return 0;
438
439	/*
440	* Combine similar spell effects into one spell effect. Needed for
441	* performance reasons with meteor swarm and the like, but also for
442	* playability reasons.
443	*/
444	if (tmp->arch == op->arch /* no harm if not comparing by name here */
445	&& tmp->type == op->type	412	if (tmp->type == op->type)
446	&& tmp->subtype == op->subtype
447	&& tmp->owner == op->owner
448	&& ((tmp->subtype == SP_EXPLOSION) \|\| (tmp->subtype == SP_CONE && tmp->stats.sp == op->stats.sp)))
449	{	413	{
450	tmp->stats.dam = MAX (tmp->stats.dam, op->stats.dam);	414	if (tmp->subtype == op->subtype
451	tmp->range = MAX (tmp->range, op->range);	415	&& tmp->arch == op->arch /* no harm if not comparing by name here */)
452	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)
453	return 0;	446	return 0;
454	}	447	}
455		448
456	/* 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
457	* ground to prevent it from moving along?	450	* ground to prevent it from moving along?
458	*/	451	*/
…		…
476	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)
477	{	470	{
478	if (!spell->other_arch)	471	if (!spell->other_arch)
479	return 0;	472	return 0;
480		473
481	mapxy pos (op->map, x, y);//TODO, should not pass x, y
482
483	pos.move (dir ? dir : rndm (1, 8));
484
485	if (!pos.normalise ())
486	return 0;
487
488	object *tmp = spell->other_arch->instance ();	474	object *tmp = spell->other_arch->instance ();
489		475
490	if (!tmp)	476	if (!tmp)
491	return 0;	477	return 0;
492
493	if (pos.ms ().blocks (tmp))
494	{
495	new_draw_info (NDI_UNIQUE, 0, op, "You can't cast this spell on top of a wall!\n");
496	tmp->destroy ();
497	return 0;
498	}
499		478
500	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);
501	tmp->duration = spell->duration + SP_level_duration_adjust (caster, spell);	480	tmp->duration = spell->duration + SP_level_duration_adjust (caster, spell);
502	/* 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 */
503	tmp->stats.food = tmp->duration;	482	tmp->stats.food = tmp->duration;
504	tmp->range = spell->range + SP_level_range_adjust (caster, spell);	483	tmp->range = spell->range + SP_level_range_adjust (caster, spell);
505	tmp->attacktype = spell->attacktype;	484	tmp->attacktype = spell->attacktype;
506	tmp->x = x;
507	tmp->y = y;
508	tmp->direction = dir;	485	tmp->direction = dir;
509	tmp->set_owner (op);	486	tmp->set_owner (op);
510	tmp->level = caster_level (caster, spell);	487	tmp->level = casting_level (caster, spell);
511	set_spell_skill (op, caster, spell, tmp);	488	set_spell_skill (op, caster, spell, tmp);
512		489
513	/* needed for AT_HOLYWORD,AT_GODPOWER stuff */	490	/* needed for AT_HOLYWORD,AT_GODPOWER stuff */
514	if (tmp->attacktype & AT_HOLYWORD \|\| tmp->attacktype & AT_GODPOWER)	491	if (tmp->attacktype & AT_HOLYWORD \|\| tmp->attacktype & AT_GODPOWER)
515	if (!tailor_god_spell (tmp, op))	492	if (!tailor_god_spell (tmp, op))
516	return 0;	493	return 0;
517		494
518	if (QUERY_FLAG (tmp, FLAG_IS_TURNABLE))	495	if (tmp->flag [FLAG_IS_TURNABLE])
519	SET_ANIMATION (tmp, dir);	496	SET_ANIMATION (tmp, dir);
520		497
521	if ((tmp = op->map->insert (tmp, x, y, op)))	498	if ((tmp = op->map->insert (tmp, x, y, op)))
522	move_spell_effect (tmp);	499	move_spell_effect (tmp);
523		500
…		…
531	****************************************************************************/	508	****************************************************************************/
532	void	509	void
533	regenerate_rod (object *rod)	510	regenerate_rod (object *rod)
534	{	511	{
535	if (rod->stats.hp < rod->stats.maxhp)	512	if (rod->stats.hp < rod->stats.maxhp)
536	rod->stats.hp = min (rod->stats.maxhp, rod->stats.hp + 1 + rod->stats.maxhp / 10);	513	rod->stats.hp = min (rod->stats.maxhp, rod->stats.hp + 1 + rod->stats.maxhp / 20);
537	}	514	}
538		515
539	void	516	void
540	drain_rod_charge (object *rod)	517	drain_rod_charge (object *rod)
541	{	518	{
…		…
561	{	538	{
562	tmp = op->owner;	539	tmp = op->owner;
563	/* 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
564	* to the caster.	541	* to the caster.
565	*/	542	*/
566	if (!tmp \|\| !QUERY_FLAG (tmp, FLAG_MONSTER))	543	if (!tmp \|\| !tmp->flag [FLAG_MONSTER])
567	tmp = op;	544	tmp = op;
568	}	545	}
569	else	546	else
570	{	547	{
571	maptile *m = op->map;	548	maptile *m = op->map;
…		…
619	continue;	596	continue;
620		597
621	tmp = GET_MAP_OB (mp, nx, ny);	598	tmp = GET_MAP_OB (mp, nx, ny);
622		599
623	while (tmp != NULL && (((owner_type == PLAYER &&	600	while (tmp != NULL && (((owner_type == PLAYER &&
624	!QUERY_FLAG (tmp, FLAG_MONSTER) && !QUERY_FLAG (tmp, FLAG_GENERATOR)) \|\|	601	!tmp->flag [FLAG_MONSTER] && !tmp->flag [FLAG_GENERATOR]) \|\|
625	(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))))
626	tmp = tmp->above;	603	tmp = tmp->above;
627		604
628	if (tmp != NULL && can_see_monsterP (m, x, y, i))	605	if (tmp != NULL && can_see_monsterP (m, x, y, i))
629	return freedir[i];	606	return freedir[i];
…		…
633		610
634	/* put_a_monster: puts a monster named monstername near by	611	/* put_a_monster: puts a monster named monstername near by
635	* op. This creates the treasures for the monsters, and	612	* op. This creates the treasures for the monsters, and
636	* also deals with multipart monsters properly.	613	* also deals with multipart monsters properly.
637	*/	614	*/
638	void	615	static void
639	put_a_monster (object op, const char monstername)	616	put_a_monster (object op, const char monstername)
640	{	617	{
641	object tmp, head = NULL, *prev = NULL;	618	object tmp, head = NULL, *prev = NULL;
642	archetype *at;	619	archetype *at;
643	int dir;	620	int dir;
…		…
658	* insert multipart monsters properly	635	* insert multipart monsters properly
659	*/	636	*/
660	//TODO: use expand_tail + ...	637	//TODO: use expand_tail + ...
661	while (at != NULL)	638	while (at != NULL)
662	{	639	{
663	tmp = arch_to_object (at);	640	tmp = at->instance ();
664	tmp->x = op->x + freearr_x[dir] + at->x;	641	tmp->x = op->x + freearr_x[dir] + at->x;
665	tmp->y = op->y + freearr_y[dir] + at->y;	642	tmp->y = op->y + freearr_y[dir] + at->y;
666	tmp->map = op->map;	643	tmp->map = op->map;
667	if (head)	644	if (head)
668	{	645	{
…		…
699	* 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
700	* 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
701	* never used. This is however used by various failures on the	678	* never used. This is however used by various failures on the
702	* players part (alchemy, reincarnation, etc)	679	* players part (alchemy, reincarnation, etc)
703	*/	680	*/
704
705	int	681	int
706	summon_hostile_monsters (object op, int n, const char monstername)	682	summon_hostile_monsters (object op, int n, const char monstername)
707	{	683	{
708	int i;	684	int i;
709		685
…		…
774	{	750	{
775	SET_ANIMATION (op, ATTACKS[i].face);	751	SET_ANIMATION (op, ATTACKS[i].face);
776	}	752	}
777	}	753	}
778		754
779
780	/* prayer_failure: This is called when a player fails	755	/* prayer_failure: This is called when a player fails
781	* at casting a prayer.	756	* at casting a prayer.
782	* op is the player.	757	* op is the player.
783	* failure is basically how much grace they had.	758	* failure is basically how much grace they had.
784	* 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.
785	*/	760	*/
786		761
787	void	762	#define HINT_GRACE " H<Make sure you always have enough grace points for your prayers.>"
		763
		764	static void
788	prayer_failure (object *op, int failure, int power)	765	prayer_failure (object *op, int failure, int power)
789	{	766	{
790	const char *godname;	767	const char *godname;
791	object *tmp;	768	object *tmp;
792		769
793	if (!strcmp ((godname = determine_god (op)), "none"))	770	if (!strcmp ((godname = determine_god (op)), "none"))
794	godname = "Your spirit";	771	godname = "Your spirit";
795		772
796	if (failure <= -20 && failure > -40) /* wonder */	773	if (failure <= -20 && failure > -40) /* wonder */
797	{	774	{
798	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);
799	tmp = get_archetype (SPELL_WONDER);	776	tmp = archetype::get (SPELL_WONDER);
800	cast_cone (op, op, 0, tmp);	777	cast_cone (op, op, 0, tmp);
801	tmp->destroy ();	778	tmp->destroy ();
802	}	779	}
803		780
804	else if (failure <= -40 && failure > -60) /* confusion */	781	else if (failure <= -40 && failure > -60) /* confusion */
805	{	782	{
806	new_draw_info (NDI_UNIQUE, 0, op, "Your diety touches your mind!");	783	op->failmsg ("Your diety touches your mind!" HINT_GRACE);
807	confuse_player (op, op, 99);	784	confuse_player (op, op, 99);
808	}	785	}
809	else if (failure <= -60 && failure > -150) /* paralysis */	786	else if (failure <= -60 && failure > -150) /* paralysis */
810	{	787	{
811	new_draw_info_format (NDI_UNIQUE, 0, op, "%s requires you to pray NOW.", godname);	788	op->failmsgf ("%s requires you to pray NOW. "
812	new_draw_info (NDI_UNIQUE, 0, op, "You comply, ignoring all else.");	789	"You comply, ignoring all else." HINT_GRACE,
		790	godname);
813	paralyze_player (op, op, 99);	791	paralyze_player (op, op, 99);
814	}	792	}
815	else if (failure <= -150) /* blast the immediate area */	793	else if (failure <= -150) /* blast the immediate area */
816	{	794	{
817	tmp = get_archetype (GOD_POWER);	795	tmp = archetype::get (GOD_POWER);
818	new_draw_info_format (NDI_UNIQUE, 0, op, "%s smites you!", godname);	796	op->failmsgf ("%s smites you!" HINT_GRACE, godname);
819	cast_magic_storm (op, tmp, power);	797	cast_magic_storm (op, tmp, power);
820	}	798	}
821	}	799	}
822		800
823	/*	801	/*
824	* spell_failure() handles the various effects for differing degrees	802	* spell_failure() handles the various effects for differing degrees
825	* of failure badness.	803	* of failure badness.
826	* op is the player that failed.	804	* op is the player that failed.
827	* failure is a random value of how badly you failed.	805	* failure is a random value of how badly you failed.
828	* 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.
829	* skill is the skill you'd need to cast the spell.	807	* skill is the skill you'd need to cast the spell.
830	*/	808	*/
831
832	void	809	void
833	spell_failure (object op, int failure, int power, object skill)	810	spell_failure (object op, int failure, int power, object skill)
834	{	811	{
835	object *tmp;	812	object *tmp;
836		813
837	if (settings.spell_failure_effects == FALSE)	814	if (settings.spell_failure_effects == FALSE)
838	return;	815	return;
839		816
840	if (failure <= -20 && failure > -40) /* wonder */	817	if (failure <= -20 && failure > -40) /* wonder */
841	{	818	{
842	new_draw_info (NDI_UNIQUE, 0, op, "Your spell causes an unexpected effect.");	819	op->failmsg ("Your spell causes an unexpected effect.");
843	tmp = get_archetype (SPELL_WONDER);	820	tmp = archetype::get (SPELL_WONDER);
844	cast_cone (op, op, 0, tmp);	821	cast_cone (op, op, 0, tmp);
845	tmp->destroy ();	822	tmp->destroy ();
846	}	823	}
847		824
848	else if (failure <= -40 && failure > -60) /* confusion */	825	else if (failure <= -40 && failure > -60) /* confusion */
849	{	826	{
850	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!");
851	confuse_player (op, op, 99);	828	confuse_player (op, op, 99);
852	}	829	}
853	else if (failure <= -60 && failure > -80) /* paralysis */	830	else if (failure <= -60 && failure > -80) /* paralysis */
854	{	831	{
855	new_draw_info (NDI_UNIQUE, 0, op, "Your magic stuns you!");	832	op->failmsg ("Your magic stuns you!");
856	paralyze_player (op, op, 99);	833	paralyze_player (op, op, 99);
857	}	834	}
858	else if (failure <= -80) /* blast the immediate area */	835	else if (failure <= -80) /* blast the immediate area */
859	{	836	{
860	object *tmp;	837	object *tmp;
861		838
862	/* 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 */
863	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)
864	{	841	{
865	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!");
866	hit_player (op, 9998, op, AT_INTERNAL, 1);	843	hit_player (op, 9998, op, AT_INTERNAL, 1);
867		844
868	}	845	}
869	else	846	else
870	{	847	{
871	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!");
872	tmp = get_archetype (LOOSE_MANA);	849	tmp = archetype::get (LOOSE_MANA);
873	tmp->level = skill->level;	850	tmp->level = skill->level;
874		851
875	/* increase the area of destruction a little for more powerful spells */	852	/* increase the area of destruction a little for more powerful spells */
876	tmp->range += isqrt (power);	853	tmp->range += isqrt (power);
877		854
…		…
885	tmp->insert_at (op);	862	tmp->insert_at (op);
886	}	863	}
887	}	864	}
888	}	865	}
889		866
890	int	867	static int
891	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)
892	{	869	{
893	int success;
894	object *spell;
895
896	if (!spell_ob->other_arch)	870	if (!spell_ob->other_arch)
897	{	871	{
898	LOG (llevError, "cast_party_spell: empty other arch\n");	872	LOG (llevError, "cast_party_spell: empty other arch\n");
899	return 0;	873	return 0;
900	}	874	}
901		875
902	spell = arch_to_object (spell_ob->other_arch);	876	object *spell = spell_ob->other_arch->instance ();
903		877
904	/* Always cast spell on caster */	878	/* Always cast spell on caster */
905	success = cast_spell (op, caster, dir, spell, stringarg);	879	int success = cast_spell (op, caster, dir, spell, spellparam);
906		880
907	if (caster->contr->party == NULL)	881	if (!op->contr \|\| !op->contr->party)
908	{	882	{
909	spell->remove ();	883	spell->remove ();
910	return success;	884	return success;
911	}	885	}
912		886
913	for_all_players (pl)	887	for_all_players (pl)
914	if ((pl->ob->contr->party == caster->contr->party) && (on_same_map (pl->ob, caster)))	888	if ((pl->ob->contr->party == op->contr->party)
		889	&& on_same_map (pl->ob, op)
		890	&& pl->ob != op)
915	cast_spell (pl->ob, caster, pl->ob->facing, spell, stringarg);	891	cast_spell (pl->ob, caster, pl->ob->facing, spell, spellparam);
916		892
917	spell->remove ();	893	spell->remove ();
918	return success;	894	return success;
919	}	895	}
920		896
…		…
926	* same as op.	902	* same as op.
927	* 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
928	* is self only, dir really doesn't make a difference.	904	* is self only, dir really doesn't make a difference.
929	* 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,
930	* we can determine what to do.	906	* we can determine what to do.
931	* 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
932	* 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
933	* 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,
934	* etc.	910	* etc.
935	* 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
936	* 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
…		…
944	* 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),
945	* this function will decrease the mana/grace appropriately. For other	921	* this function will decrease the mana/grace appropriately. For other
946	* objects, the caller should do what it considers appropriate.	922	* objects, the caller should do what it considers appropriate.
947	*/	923	*/
948	int	924	int
949	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)
950	{	926	{
951	const char *godname;	927	const char *godname;
952	int success = 0, cast_level = 0;	928	int success = 0;
953	object *skill = NULL;	929
		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
954		933
955	if (!spell_ob)	934	if (!spell_ob)
956	{	935	{
957	LOG (llevError, "cast_spell: null spell object passed\n");	936	LOG (llevError, "cast_spell: null spell object passed\n");
958	return 0;	937	return 0;
…		…
969	}	948	}
970		949
971	/* 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
972	* an issue, because they don't have any spellpaths set up.	951	* an issue, because they don't have any spellpaths set up.
973	*/	952	*/
974	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])
975	{	954	{
976	new_draw_info (NDI_UNIQUE, 0, op, "That spell path is denied to you.");	955	op->failmsg ("That spell path is denied to you.");
977	return 0;	956	return 0;
978	}	957	}
		958
		959	object *skill = 0;
979		960
980	/* 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
981	* (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
982	* checks. We let monsters do special things - eg, they	963	* checks. We let monsters do special things - eg, they
983	* 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
984	* should take care of that.	965	* should take care of that.
985	* 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
986	* 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
987	* at least process that code.	968	* at least process that code.
988	*/	969	*/
989	if (op->type == PLAYER && op == caster)	970	if (op->type == PLAYER && op == caster)
990	{	971	{
991	cast_level = caster_level (caster, spell_ob);
992
993	if (spell_ob->skill)	972	if (spell_ob->skill)
994	{	973	{
995	skill = find_skill_by_name (op, spell_ob->skill);	974	skill = find_skill_by_name (op, spell_ob->skill);
996		975
997	if (!skill)	976	if (!skill)
998	{	977	{
999	op->failmsg (format ("You need the skill %s to cast %s! "	978	op->failmsgf ("You need the %s skill to cast %s! "
1000	"H<You either need to learn the skill via a skill scroll "	979	"H<You either need to learn the skill via a skill scroll "
1001	"or you need to wear a talisman or holy symbol.>",	980	"or you need to wear a talisman, holy symbol or another skill tool.>",
1002	&spell_ob->skill, &spell_ob->name));	981	&spell_ob->skill, &spell_ob->name);
1003	return 0;	982	return 0;
1004	}	983	}
1005		984
1006	int casting_level = min_casting_level (op, spell_ob);	985	const char *msg = "";
1007		986
1008	if (casting_level > cast_level && !QUERY_FLAG (op, FLAG_WIZ))	987	int caster_level = skill->level;
		988
		989	if (op->path_attuned & spell_ob->path_attuned)
1009	{	990	{
		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	{
1010	op->failmsg (format ("You lack enough skill to cast that spell! "	1003	op->failmsgf ("You lack enough skill to cast that spell! "
1011	"H<Your cast level is %d, but level %d is required. Maybe you are repelled?>",	1004	"H<Your effective cast level is %d%s, but level %d is required.>",
1012	cast_level, casting_level));	1005	caster_level, msg, spell_ob->level);
		1006	if (!op->is_wiz ())
1013	return 0;	1007	return 0;
1014	}	1008	}
1015	}	1009	}
1016		1010
1017	/* 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
1018	* to have sufficient grace/mana.	1012	* to have sufficient grace/mana.
1019	*/	1013	*/
1020	if (!QUERY_FLAG (op, FLAG_WIZ))	1014	if (!op->flag [FLAG_WIZCAST])
1021	{	1015	{
1022	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&	1016	if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&
1023	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)
1024	{	1018	{
1025	op->failmsg ("You don't have enough mana!");	1019	op->failmsg ("You don't have enough mana!");
…		…
1033	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)
1034	op->statusmsg (format ("%s grants your prayer, though you are unworthy.", godname));	1028	op->statusmsg (format ("%s grants your prayer, though you are unworthy.", godname));
1035	else	1029	else
1036	{	1030	{
1037	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);
1038	op->failmsg (format ("%s ignores your prayer.", godname));	1032	op->failmsgf ("%s ignores your prayer.", godname);
1039	return 0;	1033	return 0;
1040	}	1034	}
1041	}	1035	}
1042		1036
1043	/* player/monster is trying to cast the spell. might fumble it */	1037	/* player/monster is trying to cast the spell. might fumble it */
1044	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) <
1045	(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]))
1046	{	1040	{
1047	op->contr->play_sound (sound_find ("fumble_spell"));	1041	op->contr->play_sound (sound_find ("fumble_spell"));
1048	op->failmsg ("You fumble the prayer.");	1042	op->failmsg ("You fumble the prayer.");
1049		1043
1050	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);
…		…
1073	* not alive, then this would mean that the mapmaker put the	1067	* not alive, then this would mean that the mapmaker put the
1074	* objects on the space - presume that they know what they are	1068	* objects on the space - presume that they know what they are
1075	* doing.	1069	* doing.
1076	*/	1070	*/
1077		1071
1078	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 :-)!
1079	{	1073	{
		1074	op->speed_left -= 2 * op->speed; // freeze for two ticks, so we don't flood
1080	op->failmsg ("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!");
1081	return 0;	1076	return 0;
1082	}	1077	}
1083		1078
1084	if ((spell_ob->type == SPELL)	1079	if ((spell_ob->type == SPELL)
1085	&& (caster->type != POTION)	1080	&& (caster->type != POTION)
1086	&& !QUERY_FLAG (op, FLAG_WIZCAST)	1081	&& !op->flag [FLAG_WIZCAST]
1087	&& (QUERY_FLAG (caster, FLAG_ALIVE)	1082	&& (caster->flag [FLAG_ALIVE]
1088	\|\| QUERY_FLAG (op, FLAG_ALIVE))	1083	\|\| op->flag [FLAG_ALIVE])
1089	&& (((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)))
1090	{	1085	{
1091	if (op->type != PLAYER)	1086	if (op->type != PLAYER)
1092	return 0;	1087	return 0;
1093		1088
1094	if ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)	1089	if ((mflags & P_NO_CLERIC) && spell_ob->stats.grace)
1095	op->failmsg (format ("This ground is unholy! %s ignores you.", godname));	1090	op->failmsgf ("This ground is unholy! %s ignores you.", godname);
1096	else if (object *item = op->contr->ranged_ob)	1091	else if (object *item = op->contr->ranged_ob)
1097	{	1092	{
1098	if (item->type == SPELL)	1093	if (item->type == SPELL)
1099	op->failmsg ("Something blocks your spellcasting.");	1094	op->failmsg ("Something blocks your spellcasting.");
1100	else if (item->type == SCROLL)	1095	else if (item->type == SCROLL)
…		…
1106	op->failmsg ("Something blocks the spell!");	1101	op->failmsg ("Something blocks the spell!");
1107		1102
1108	return 0;	1103	return 0;
1109	}	1104	}
1110		1105
		1106	// undo the flood protection from earlier
		1107	op->speed_left += 4 * op->speed; // ~0.5s on failure
		1108
1111	/* Take into account how long it takes to cast the spell.	1109	/* Take into account how long it takes to cast the spell.
1112	* 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
1113	* the spell object. If it is a spell object, have it	1111	* the spell object. If it is a spell object, have it
1114	* take two ticks. Things that cast spells on the players	1112	* take two ticks. Things that cast spells on the players
1115	* behalf (eg, altars, and whatever else) shouldn't cost	1113	* behalf (eg, altars, and whatever else) shouldn't cost
1116	* the player any time.	1114	* the player any time.
1117	* Ignore casting time for firewalls	1115	* Ignore casting time for firewalls
1118	*/	1116	*/
1119	if (caster == op && caster->type != FIREWALL)	1117	if (caster == op && caster->type != FIREWALL)
1120	{	1118	{
1121	op->speed_left -= spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * FABS (op->speed);	1119	op->speed_left -= spell_ob->casting_time * PATH_TIME_MULT (op, spell_ob) * op->speed;
1122	/* Other portions of the code may also decrement the speed of the player, so	1120	/* Other portions of the code may also decrement the speed of the player, so
1123	* put a lower limit so that the player isn't stuck here too long	1121	* put a lower limit so that the player isn't stuck here too long
1124	*/	1122	*/
1125	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)
1126	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;
1127	}	1125	}
1128	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)
1129	op->speed_left -= 2 * FABS (op->speed);	1127	op->speed_left -= 2 * op->speed;
1130		1128
1131	if (op->type == PLAYER && op == caster)	1129	if (op->type == PLAYER && op == caster)
1132	{	1130	{
1133	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);
1134	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);
…		…
1139	* object requires.	1137	* object requires.
1140	*/	1138	*/
1141	if (op != caster && !skill && caster->skill)	1139	if (op != caster && !skill && caster->skill)
1142	{	1140	{
1143	skill = find_skill_by_name (op, caster->skill);	1141	skill = find_skill_by_name (op, caster->skill);
		1142
1144	if (!skill)	1143	if (!skill)
1145	{	1144	{
1146	op->failmsg (format ("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));
1147	return 0;	1146	return 0;
1148	}	1147	}
1149
1150	op->change_skill (skill); /* needed for proper exp credit */
1151	}	1148	}
1152		1149
1153	if (INVOKE_OBJECT (CAST_SPELL, spell_ob, ARG_OBJECT (op), ARG_OBJECT (caster), ARG_INT (dir), ARG_STRING (stringarg)))	1150	if (INVOKE_OBJECT (CAST_SPELL, spell_ob, ARG_OBJECT (op), ARG_OBJECT (caster), ARG_INT (dir), ARG_STRING (spellparam)))
1154	return RESULT_INT (0);	1151	return RESULT_INT (0);
1155		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;
		1159
1156	switch (spell_ob->subtype)	1160	switch (spell_ob->subtype)
1157	{	1161	{
1158	/* 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
1159	* in in spells.h.	1163	* in spells.h.
1160	*/	1164	*/
1161	case SP_RAISE_DEAD:	1165	case SP_RAISE_DEAD:
1162	success = cast_raise_dead_spell (op, caster, spell_ob, dir, stringarg);	1166	success = cast_raise_dead_spell (op, caster, spell_ob, dir, spellparam);
1163	break;	1167	break;
1164		1168
1165	case SP_RUNE:	1169	case SP_RUNE:
1166	success = write_rune (op, caster, spell_ob, dir, stringarg);	1170	success = write_rune (op, caster, spell_ob, dir, spellparam);
1167	break;	1171	break;
1168		1172
1169	case SP_MAKE_MARK:	1173	case SP_MAKE_MARK:
1170	success = write_mark (op, spell_ob, stringarg);	1174	success = write_mark (op, spell_ob, spellparam);
1171	break;	1175	break;
1172		1176
1173	case SP_BOLT:	1177	case SP_BOLT:
1174	success = fire_bolt (op, caster, dir, spell_ob, skill);	1178	success = fire_bolt (op, caster, dir, spell_ob, skill);
1175	break;	1179	break;
…		…
1204		1208
1205	case SP_DIMENSION_DOOR:	1209	case SP_DIMENSION_DOOR:
1206	/* dimension door needs the actual caster, because that is what is	1210	/* dimension door needs the actual caster, because that is what is
1207	* moved.	1211	* moved.
1208	*/	1212	*/
1209	success = dimension_door (op, caster, spell_ob, dir);	1213	success = dimension_door (op, caster, spell_ob, dir, spellparam);
1210	break;	1214	break;
1211		1215
1212	case SP_MAGIC_MAPPING:	1216	case SP_MAGIC_MAPPING:
1213	if (op->type == PLAYER)	1217	if (op->type == PLAYER)
1214	{	1218	{
…		…
1247	case SP_HEALING:	1251	case SP_HEALING:
1248	success = cast_heal (op, caster, spell_ob, dir);	1252	success = cast_heal (op, caster, spell_ob, dir);
1249	break;	1253	break;
1250		1254
1251	case SP_CREATE_FOOD:	1255	case SP_CREATE_FOOD:
1252	success = cast_create_food (op, caster, spell_ob, dir, stringarg);	1256	success = cast_create_food (op, caster, spell_ob, dir, spellparam);
1253	break;	1257	break;
1254		1258
1255	case SP_EARTH_TO_DUST:	1259	case SP_EARTH_TO_DUST:
1256	success = cast_earth_to_dust (op, caster, spell_ob);	1260	success = cast_earth_to_dust (op, caster, spell_ob);
1257	break;	1261	break;
…		…
1267	case SP_CURSE:	1271	case SP_CURSE:
1268	success = cast_curse (op, caster, spell_ob, dir);	1272	success = cast_curse (op, caster, spell_ob, dir);
1269	break;	1273	break;
1270		1274
1271	case SP_SUMMON_MONSTER:	1275	case SP_SUMMON_MONSTER:
1272	success = summon_object (op, caster, spell_ob, dir, stringarg);	1276	success = summon_object (op, caster, spell_ob, dir, spellparam);
1273	break;	1277	break;
1274		1278
1275	case SP_CHARGING:	1279	case SP_CHARGING:
1276	success = recharge (op, caster, spell_ob);	1280	success = recharge (op, caster, spell_ob);
1277	break;	1281	break;
…		…
1310	break;	1314	break;
1311		1315
1312	case SP_MOVING_BALL:	1316	case SP_MOVING_BALL:
1313	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)
1314	{	1318	{
1315	op->failmsg (format ("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);
1316	success = 0;	1320	success = 0;
1317	}	1321	}
1318	else	1322	else
1319	success = fire_arch_from_position (op, caster, op->x, op->y, dir, spell_ob);	1323	success = fire_arch_from_position (op, caster, op->x, op->y, dir, spell_ob);
1320	break;	1324	break;
…		…
1331	/* in rune.c */	1335	/* in rune.c */
1332	success = dispel_rune (op, caster, spell_ob, skill, dir);	1336	success = dispel_rune (op, caster, spell_ob, skill, dir);
1333	break;	1337	break;
1334		1338
1335	case SP_CREATE_MISSILE:	1339	case SP_CREATE_MISSILE:
1336	success = cast_create_missile (op, caster, spell_ob, dir, stringarg);	1340	success = cast_create_missile (op, caster, spell_ob, dir, spellparam);
1337	break;	1341	break;
1338		1342
1339	case SP_CONSECRATE:	1343	case SP_CONSECRATE:
1340	success = cast_consecrate (op, caster, spell_ob);	1344	success = cast_consecrate (op, caster, spell_ob);
1341	break;	1345	break;
…		…
1363	case SP_AURA:	1367	case SP_AURA:
1364	success = create_aura (op, caster, spell_ob);	1368	success = create_aura (op, caster, spell_ob);
1365	break;	1369	break;
1366		1370
1367	case SP_PARTY_SPELL:	1371	case SP_PARTY_SPELL:
1368	success = cast_party_spell (op, caster, dir, spell_ob, stringarg);	1372	success = cast_party_spell (op, caster, dir, spell_ob, spellparam);
1369	break;	1373	break;
1370		1374
1371	default:	1375	default:
1372	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);
1373	}	1377	}
		1378
		1379	// restore chosen_skill
		1380	op->chosen_skill = chosen_skill;
1374		1381
1375	op->play_sound (	1382	op->play_sound (
1376	success	1383	success
1377	? spell_ob->sound	1384	? spell_ob->sound
1378	? spell_ob->sound	1385	? spell_ob->sound
…		…
1432	move_aura (op);	1439	move_aura (op);
1433	break;	1440	break;
1434	}	1441	}
1435	}	1442	}
1436		1443
1437	/* this checks to see if something special should happen if
1438	* something runs into the object.
1439	*/
1440	void
1441	check_spell_effect (object *op)
1442	{
1443	switch (op->subtype)
1444	{
1445	case SP_BOLT:
1446	move_bolt (op);
1447	return;
1448
1449	case SP_BULLET:
1450	check_bullet (op);
1451	return;
1452	}
1453	}
1454
1455	/* This is called by move_apply. Basically, if someone	1444	/* This is called by move_apply. Basically, if someone
1456	* 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
1457	* are set, this is called. This should only be called for	1446	* are set, this is called. This should only be called for
1458	* objects of the appropraite type.	1447	* objects of the appropriate type.
1459	*/	1448	*/
1460	void	1449	void
1461	apply_spell_effect (object spell, object victim)	1450	apply_spell_effect (object spell, object victim)
1462	{	1451	{
1463	switch (spell->subtype)	1452	switch (spell->subtype)
1464	{	1453	{
1465	case SP_CONE:	1454	case SP_CONE:
1466	if (QUERY_FLAG (victim, FLAG_ALIVE) && spell->speed && spell->attacktype)	1455	if (victim->flag [FLAG_ALIVE] && spell->has_active_speed () && spell->attacktype)
1467	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 0);	1456	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 0);
1468	break;	1457	break;
1469		1458
1470	case SP_MAGIC_MISSILE:	1459	case SP_MAGIC_MISSILE:
1471	if (QUERY_FLAG (victim, FLAG_ALIVE))	1460	if (victim->flag [FLAG_ALIVE])
1472	{	1461	{
1473	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);	1462	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);
1474
1475	if (!spell->destroyed ())
1476	spell->destroy ();	1463	spell->destroy ();
1477	}	1464	}
1478	break;	1465	break;
1479		1466
1480	case SP_MOVING_BALL:	1467	case SP_MOVING_BALL:
1481	if (QUERY_FLAG (victim, FLAG_ALIVE))	1468	if (victim->flag [FLAG_ALIVE])
1482	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);	1469	hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);
1483	else if (victim->materialname)	1470	else if (victim->material != MATERIAL_NULL)
1484	save_throw_object (victim, spell->attacktype, spell);	1471	save_throw_object (victim, spell->attacktype, spell);
1485	break;
1486	}
1487	}
1488		1472
		1473	break;
		1474	}
		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 1.73 by root, Sat May 17 14:11:13 2008 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 1.73 by root, Sat May 17 14:11:13 2008 UTC vs.
Revision 1.128 by root, Wed Nov 16 23:42:03 2016 UTC