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Comparing deliantra/server/server/spell_util.C (file contents):
Revision 1.74 by root, Sat May 17 15:03:04 2008 UTC vs.
Revision 1.99 by root, Mon Oct 12 14:00:59 2009 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 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (©) 1992,2007 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 7 *
8 * 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>
… …
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 */
37object * 38object *
38find_random_spell_in_ob (object *ob, const char *skill) 39find_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
… …
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 (arch_to_object (spob->other_arch), x, y, originator);
90} 89}
91 90
92/* 91static int
93 * This function takes a caster and spell and presents the 92attuned_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 */
102int
103min_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 */
121int 104int
122caster_level (object *caster, object *spell) 105casting_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
164sint16 146sint16
165SP_level_spellpoint_cost (object *caster, object *spell, int flags) 147SP_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 { 154 {
… …
212 LOG (llevError, "SP_level_spellpoint_cost: Unknown flags passed: %d\n", flags); 194 LOG (llevError, "SP_level_spellpoint_cost: Unknown flags passed: %d\n", flags);
213 return 0; 195 return 0;
214 } 196 }
215} 197}
216 198
199/*
200 * Return the effective casting level of the spell.
201 * To make spells independent of their starting level, this function
202 * scales the range spellstartlevel .. 100 into the range 1..100
203 */
204static int
205SP_casting_level (object *caster, object *spell)
206{
207 return casting_level (caster, spell);
208}
209
217/* SP_level_dam_adjust: Returns adjusted damage based on the caster. 210/* SP_level_dam_adjust: Returns adjusted damage based on the caster.
218 * spob is the spell we are adjusting. 211 * spob is the spell we are adjusting.
219 */ 212 */
220int 213int
221SP_level_dam_adjust (object *caster, object *spob) 214SP_level_dam_adjust (object *caster, object *spob)
222{ 215{
223 if (!spob->dam_modifier) 216 if (!spob->dam_modifier)
224 return 0; 217 return 0;
225 218
226 int level = caster_level (caster, spob);
227 return max (0, level - min_casting_level (caster, spob)) / spob->dam_modifier; 219 return SP_casting_level (caster, spob) / spob->dam_modifier;
228} 220}
229 221
230/* Adjust the strength of the spell based on level. 222/* Adjust the strength of the spell based on level.
231 * This is basically the same as SP_level_dam_adjust above, 223 * This is basically the same as SP_level_dam_adjust above,
232 * but instead looks at the level_modifier value. 224 * but instead looks at the level_modifier value.
… …
235SP_level_duration_adjust (object *caster, object *spob) 227SP_level_duration_adjust (object *caster, object *spob)
236{ 228{
237 if (!spob->duration_modifier) 229 if (!spob->duration_modifier)
238 return 0; 230 return 0;
239 231
240 int level = caster_level (caster, spob);
241 return max (0, level - min_casting_level (caster, spob)) / spob->duration_modifier; 232 return SP_casting_level (caster, spob) / spob->duration_modifier;
242} 233}
243 234
244/* Adjust the strength of the spell based on level. 235/* Adjust the strength of the spell based on level.
245 * This is basically the same as SP_level_dam_adjust above, 236 * This is basically the same as SP_level_dam_adjust above,
246 * but instead looks at the level_modifier value. 237 * but instead looks at the level_modifier value.
… …
249SP_level_range_adjust (object *caster, object *spob) 240SP_level_range_adjust (object *caster, object *spob)
250{ 241{
251 if (!spob->range_modifier) 242 if (!spob->range_modifier)
252 return 0; 243 return 0;
253 244
254 int level = caster_level (caster, spob);
255 return (level - min_casting_level (caster, spob)) / spob->range_modifier; 245 return SP_casting_level (caster, spob) / spob->range_modifier;
256} 246}
257 247
258/* Checks to see if player knows the spell. If the name is the same 248/* Checks to see if player knows the spell. If the name is the same
259 * as an existing spell, we presume they know it. 249 * as an existing spell, we presume they know it.
260 * returns 1 if they know the spell, 0 if they don't. 250 * returns 1 if they know the spell, 0 if they don't.
261 */ 251 */
262object * 252object *
263check_spell_known (object *op, const char *name) 253check_spell_known (object *op, shstr_cmp name)
264{ 254{
265 object *spop; 255 object *spop;
266 shstr_cmp name_ (name);
267 256
268 for (spop = op->inv; spop; spop = spop->below) 257 for (spop = op->inv; spop; spop = spop->below)
269 if (spop->type == SPELL && spop->name == name) 258 if (spop->type == SPELL && spop->name == name)
270 return spop; 259 return spop;
271 260
272 return 0; 261 return 0;
273} 262}
274
275 263
276/* 264/*
277 * Look at object 'op' and see if they know the spell 265 * Look at object 'op' and see if they know the spell
278 * spname. This is pretty close to check_spell_known 266 * spname. This is pretty close to check_spell_known
279 * above, but it uses a looser matching mechanism. 267 * above, but it uses a looser matching mechanism.
280 * returns the matching spell object, or NULL. 268 * returns the matching spell object, or NULL.
281 * If we match multiple spells but don't get an 269 * If we match multiple spells but don't get an
282 * exact match, we also return NULL. 270 * exact match, we also return NULL.
283 */ 271 */
284
285object * 272object *
286lookup_spell_by_name (object *op, const char *spname) 273lookup_spell_by_name (object *op, const char *spname)
287{ 274{
288 object *spob1 = NULL, *spob2 = NULL, *spob; 275 object *spob1 = 0, *spob2 = 0;
289 int nummatch = 0; 276 int nummatch = 0;
290 277
291 if (spname == NULL) 278 if (!spname)
292 return NULL; 279 return 0;
293 280
294 /* Try to find the spell. We store the results in spob1 281 /* Try to find the spell. We store the results in spob1
295 * and spob2 - spob1 is only taking the length of 282 * and spob2 - spob1 is only taking the length of
296 * the past spname, spob2 uses the length of the spell name. 283 * the past spname, spob2 uses the length of the spell name.
297 */ 284 */
298 for (spob = op->inv; spob; spob = spob->below) 285 for (object *spob = op->inv; spob; spob = spob->below)
299 { 286 {
300 if (spob->type == SPELL) 287 if (spob->type == SPELL)
301 { 288 {
289 // TODO: WTF?
302 if (!strncmp (spob->name, spname, strlen (spname))) 290 if (!strncmp (spob->name, spname, strlen (spname)))
303 { 291 {
304 nummatch++; 292 nummatch++;
305 spob1 = spob; 293 spob1 = spob;
306 } 294 }
… …
311 * fall into this category). It shouldn't be hard to 299 * fall into this category). It shouldn't be hard to
312 * make sure spell names don't overlap in that fashion. 300 * make sure spell names don't overlap in that fashion.
313 */ 301 */
314 if (spob2) 302 if (spob2)
315 LOG (llevError, "Found multiple spells with overlapping base names: %s, %s\n", &spob2->name, &spob->name); 303 LOG (llevError, "Found multiple spells with overlapping base names: %s, %s\n", &spob2->name, &spob->name);
304
316 spob2 = spob; 305 spob2 = spob;
317 } 306 }
318 } 307 }
319 } 308 }
320 /* if we have best match, return it. Otherwise, if we have one match 309 /* if we have best match, return it. Otherwise, if we have one match
321 * on the loser match, return that, otehrwise null 310 * on the loser match, return that, otehrwise null
322 */ 311 */
323 if (spob2) 312 if (spob2)
324 return spob2; 313 return spob2;
314
325 if (spob1 && nummatch == 1) 315 if (spob1 && nummatch == 1)
326 return spob1; 316 return spob1;
317
327 return NULL; 318 return NULL;
328} 319}
329 320
330/* reflwall - decides weither the (spell-)object sp_op will 321/* reflwall - decides weither the (spell-)object sp_op will
331 * be reflected from the given mapsquare. Returns 1 if true. 322 * be reflected from the given mapsquare. Returns 1 if true.
… …
335 * eg, updated for tiled maps. 326 * eg, updated for tiled maps.
336 */ 327 */
337int 328int
338reflwall (maptile *m, int x, int y, object *sp_op) 329reflwall (maptile *m, int x, int y, object *sp_op)
339{ 330{
340 object *op;
341
342 if (OUT_OF_REAL_MAP (m, x, y)) 331 if (OUT_OF_REAL_MAP (m, x, y))
343 return 0; 332 return 0;
333
344 for (op = GET_MAP_OB (m, x, y); op != NULL; op = op->above) 334 for (object *op = GET_MAP_OB (m, x, y); op; op = op->above)
345 if (QUERY_FLAG (op, FLAG_REFL_SPELL) 335 if (QUERY_FLAG (op, FLAG_REFL_SPELL)
346 && (!QUERY_FLAG (op, FLAG_ALIVE) 336 && (!QUERY_FLAG (op, FLAG_ALIVE)
347 || (rndm (0, 99)) < 90 - (sp_op->level / 10))) 337 || (rndm (0, 99)) < 90 - (sp_op->level / 10)))
348 return 1; 338 return 1;
349 339
… …
379 dir ? 0 : INS_BELOW_ORIGINATOR); 369 dir ? 0 : INS_BELOW_ORIGINATOR);
380 370
381 return dir; 371 return dir;
382} 372}
383 373
374static bool
375mergable_owner (object *o1, object *o2)
376{
377 if (o1 == o2)
378 return 1;
379
380 if (!o1 || !o2)
381 return 0;
382
383 if (o1->flag [FLAG_FRIENDLY] != o1->flag [FLAG_FRIENDLY])
384 return 0;
385
386 if (o1->is_player () || o2->is_player ())
387 return 0;
388
389 return 1;
390}
391
384/* Returns true if it is ok to put spell *op on the space/may provided. 392/* 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 393 * immune_stop is basically the attacktype of the spell (why
386 * passed as a different value, not sure of). If immune_stop 394 * passed as a different value, not sure of). If immune_stop
387 * has the AT_MAGIC bit set, and there is a counterwall 395 * has the AT_MAGIC bit set, and there is a counterwall
388 * on the space, the object doesn't get placed. if immune stop 396 * 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. 397 * does not have AT_MAGIC, then counterwalls do not effect the spell.
390 *
391 */ 398 */
392int 399int
393ok_to_put_more (maptile *m, sint16 x, sint16 y, object *op, int immune_stop) 400ok_to_put_more (maptile *m, sint16 x, sint16 y, object *op, int immune_stop)
394{ 401{
395 if (!xy_normalise (m, x, y)) 402 if (!xy_normalise (m, x, y))
396 return 0; 403 return 0;
397 404
398 mapspace &ms = m->at (x, y); 405 mapspace &ms = m->at (x, y);
406 ms.update ();
399 407
400 if (OB_TYPE_MOVE_BLOCK (op, ms.move_block)) 408 if (OB_TYPE_MOVE_BLOCK (op, ms.move_block))
401 return 0; 409 return 0;
410
411 int max_effects = 5; // max. number of similar spells per mapspace
402 412
403 for (object *tmp = ms.bot; tmp; tmp = tmp->above) 413 for (object *tmp = ms.bot; tmp; tmp = tmp->above)
404 { 414 {
405 /* If there is a counterspell on the space, and this 415 /* If there is a counterspell on the space, and this
406 * object is using magic, don't progress. I believe we could 416 * object is using magic, don't progress. I believe we could
… …
425 // (and those shouldn't go away from 435 // (and those shouldn't go away from
426 // sanctuary) see also: permanent lava 436 // sanctuary) see also: permanent lava
427 && (immune_stop & AT_MAGIC)) 437 && (immune_stop & AT_MAGIC))
428 return 0; 438 return 0;
429 439
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 440 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 { 441 {
450 tmp->stats.dam = MAX (tmp->stats.dam, op->stats.dam); 442 if (tmp->subtype == op->subtype
451 tmp->range = MAX (tmp->range, op->range); 443 && tmp->arch == op->arch /* no harm if not comparing by name here */)
452 tmp->duration = MAX (tmp->duration, op->duration); 444 {
445 /* This is to prevent 'out of control' spells. Basically, this
446 * limits one spell effect per space per spell. This is definately
447 * needed for performance reasons, and just for playability I believe.
448 * there are no such things as multispaced spells right now, so
449 * we don't need to worry about the head.
450 */
451 if (tmp->stats.maxhp == op->stats.maxhp)
452 return 0;
453
454 /*
455 * Combine similar spell effects into one spell effect. Needed for
456 * performance reasons with meteor swarm and the like, but also for
457 * playability reasons.
458 */
459 if (((tmp->subtype == SP_EXPLOSION) || (tmp->subtype == SP_CONE && tmp->stats.sp == op->stats.sp)))
460 if (mergable_owner (tmp, op))
461 {
462 // if same owner, then combine, but reduce advantage of multiple spells
463 max_it (tmp->stats.dam, op->stats.dam);
464 max_it (tmp->range , op->range);
465 max_it (tmp->duration , op->duration);
466 return 0;
467 }
468 }
469
470 // if there are too many spell effects on this space,
471 // then don't allow more of them, for performance reasons.
472 if (tmp->type == SPELL_EFFECT
473 && !--max_effects)
453 return 0; 474 return 0;
454 } 475 }
455 476
456 /* Perhaps we should also put checks in for no magic and unholy 477 /* Perhaps we should also put checks in for no magic and unholy
457 * ground to prevent it from moving along? 478 * ground to prevent it from moving along?
458 */ 479 */
… …
489 tmp->stats.food = tmp->duration; 510 tmp->stats.food = tmp->duration;
490 tmp->range = spell->range + SP_level_range_adjust (caster, spell); 511 tmp->range = spell->range + SP_level_range_adjust (caster, spell);
491 tmp->attacktype = spell->attacktype; 512 tmp->attacktype = spell->attacktype;
492 tmp->direction = dir; 513 tmp->direction = dir;
493 tmp->set_owner (op); 514 tmp->set_owner (op);
494 tmp->level = caster_level (caster, spell); 515 tmp->level = casting_level (caster, spell);
495 set_spell_skill (op, caster, spell, tmp); 516 set_spell_skill (op, caster, spell, tmp);
496 517
497 /* needed for AT_HOLYWORD,AT_GODPOWER stuff */ 518 /* needed for AT_HOLYWORD,AT_GODPOWER stuff */
498 if (tmp->attacktype & AT_HOLYWORD || tmp->attacktype & AT_GODPOWER) 519 if (tmp->attacktype & AT_HOLYWORD || tmp->attacktype & AT_GODPOWER)
499 if (!tailor_god_spell (tmp, op)) 520 if (!tailor_god_spell (tmp, op))
… …
683 * Note that this is not used by any spells (summon evil monsters 704 * Note that this is not used by any spells (summon evil monsters
684 * use to call this, but best I can tell, that spell/ability was 705 * use to call this, but best I can tell, that spell/ability was
685 * never used. This is however used by various failures on the 706 * never used. This is however used by various failures on the
686 * players part (alchemy, reincarnation, etc) 707 * players part (alchemy, reincarnation, etc)
687 */ 708 */
688
689int 709int
690summon_hostile_monsters (object *op, int n, const char *monstername) 710summon_hostile_monsters (object *op, int n, const char *monstername)
691{ 711{
692 int i; 712 int i;
693 713
… …
758 { 778 {
759 SET_ANIMATION (op, ATTACKS[i].face); 779 SET_ANIMATION (op, ATTACKS[i].face);
760 } 780 }
761} 781}
762 782
763
764/* prayer_failure: This is called when a player fails 783/* prayer_failure: This is called when a player fails
765 * at casting a prayer. 784 * at casting a prayer.
766 * op is the player. 785 * op is the player.
767 * failure is basically how much grace they had. 786 * failure is basically how much grace they had.
768 * power is how much grace the spell would normally take to cast. 787 * power is how much grace the spell would normally take to cast.
769 */ 788 */
770
771void 789void
772prayer_failure (object *op, int failure, int power) 790prayer_failure (object *op, int failure, int power)
773{ 791{
774 const char *godname; 792 const char *godname;
775 object *tmp; 793 object *tmp;
… …
870 } 888 }
871 } 889 }
872} 890}
873 891
874int 892int
875cast_party_spell (object *op, object *caster, int dir, object *spell_ob, char *stringarg) 893cast_party_spell (object *op, object *caster, int dir, object *spell_ob, char *spellparam)
876{ 894{
877 int success;
878 object *spell;
879
880 if (!spell_ob->other_arch) 895 if (!spell_ob->other_arch)
881 { 896 {
882 LOG (llevError, "cast_party_spell: empty other arch\n"); 897 LOG (llevError, "cast_party_spell: empty other arch\n");
883 return 0; 898 return 0;
884 } 899 }
885 900
886 spell = arch_to_object (spell_ob->other_arch); 901 object *spell = arch_to_object (spell_ob->other_arch);
887 902
888 /* Always cast spell on caster */ 903 /* Always cast spell on caster */
889 success = cast_spell (op, caster, dir, spell, stringarg); 904 int success = cast_spell (op, caster, dir, spell, spellparam);
890 905
891 if (caster->contr->party == NULL) 906 if (!op->contr || !op->contr->party)
892 { 907 {
893 spell->remove (); 908 spell->remove ();
894 return success; 909 return success;
895 } 910 }
896 911
897 for_all_players (pl) 912 for_all_players (pl)
898 if ((pl->ob->contr->party == caster->contr->party) && (on_same_map (pl->ob, caster))) 913 if ((pl->ob->contr->party == op->contr->party)
914 && on_same_map (pl->ob, op)
915 && pl->ob != op)
899 cast_spell (pl->ob, caster, pl->ob->facing, spell, stringarg); 916 cast_spell (pl->ob, caster, pl->ob->facing, spell, spellparam);
900 917
901 spell->remove (); 918 spell->remove ();
902 return success; 919 return success;
903} 920}
904 921
… …
910 * same as op. 927 * same as op.
911 * dir is the direction to cast in. Note in some cases, if the spell 928 * dir is the direction to cast in. Note in some cases, if the spell
912 * is self only, dir really doesn't make a difference. 929 * is self only, dir really doesn't make a difference.
913 * spell_ob is the spell object that is being cast. From that, 930 * spell_ob is the spell object that is being cast. From that,
914 * we can determine what to do. 931 * we can determine what to do.
915 * stringarg is any options that are being used. It can be NULL. Almost 932 * spellparam is any options that are being used. It can be NULL. Almost
916 * certainly, only players will set it. It is basically used as optional 933 * certainly, only players will set it. It is basically used as optional
917 * parameters to a spell (eg, item to create, information for marking runes, 934 * parameters to a spell (eg, item to create, information for marking runes,
918 * etc. 935 * etc.
919 * returns 1 on successful cast, or 0 on error. These values should really 936 * returns 1 on successful cast, or 0 on error. These values should really
920 * be swapped, so that 0 is successful, and non zero is failure, with a code 937 * be swapped, so that 0 is successful, and non zero is failure, with a code
… …
928 * if it is a player casting the spell (op->type == PLAYER, op == caster), 945 * if it is a player casting the spell (op->type == PLAYER, op == caster),
929 * this function will decrease the mana/grace appropriately. For other 946 * this function will decrease the mana/grace appropriately. For other
930 * objects, the caller should do what it considers appropriate. 947 * objects, the caller should do what it considers appropriate.
931 */ 948 */
932int 949int
933cast_spell (object *op, object *caster, int dir, object *spell_ob, char *stringarg) 950cast_spell (object *op, object *caster, int dir, object *spell_ob, char *spellparam)
934{ 951{
935 const char *godname; 952 const char *godname;
936 int success = 0, cast_level = 0; 953 int success = 0;
937 object *skill = NULL; 954 object *skill = NULL;
938 955
939 if (!spell_ob) 956 if (!spell_ob)
940 { 957 {
941 LOG (llevError, "cast_spell: null spell object passed\n"); 958 LOG (llevError, "cast_spell: null spell object passed\n");
… …
970 * need to have the right skill pointer passed, so we need to 987 * need to have the right skill pointer passed, so we need to
971 * at least process that code. 988 * at least process that code.
972 */ 989 */
973 if (op->type == PLAYER && op == caster) 990 if (op->type == PLAYER && op == caster)
974 { 991 {
975 cast_level = caster_level (caster, spell_ob);
976
977 if (spell_ob->skill) 992 if (spell_ob->skill)
978 { 993 {
979 skill = find_skill_by_name (op, spell_ob->skill); 994 skill = find_skill_by_name (op, spell_ob->skill);
980 995
981 if (!skill) 996 if (!skill)
982 { 997 {
983 op->failmsg (format ("You need the skill %s to cast %s! " 998 op->failmsg (format ("You need the skill %s to cast %s! "
984 "H<You either need to learn the skill via a skill scroll " 999 "H<You either need to learn the skill via a skill scroll "
985 "or you need to wear a talisman or holy symbol.>", 1000 "or you need to wear a talisman or holy symbol.>",
986 &spell_ob->skill, &spell_ob->name)); 1001 &spell_ob->skill, &spell_ob->name));
987 return 0; 1002 return 0;
988 } 1003 }
989 1004
990 int casting_level = min_casting_level (op, spell_ob); 1005 const char *msg = "";
991 1006
992 if (casting_level > cast_level && !QUERY_FLAG (op, FLAG_WIZ)) 1007 int caster_level = skill->level;
1008
1009 if (op->path_attuned & spell_ob->path_attuned)
1010 {
1011 caster_level += min (caster_level, ATTUNE_REPELL);
1012 msg = " (attuned)";
1013 }
1014
1015 if (op->path_repelled & spell_ob->path_attuned)
1016 {
1017 caster_level -= ATTUNE_REPELL; // negative is ok
1018 msg = " (repelled)";
1019 }
1020
1021 if (spell_ob->level > caster_level)
993 { 1022 {
994 op->failmsg (format ("You lack enough skill to cast that spell! " 1023 op->failmsg (format ("You lack enough skill to cast that spell! "
995 "H<Your cast level is %d, but level %d is required. Maybe you are repelled?>", 1024 "H<Your effective cast level is %d%s, but level %d is required.>",
996 cast_level, casting_level)); 1025 caster_level, msg, spell_ob->level));
1026 if (!op->is_wiz ())
997 return 0; 1027 return 0;
998 } 1028 }
999 } 1029 }
1000 1030
1001 /* If the caster is the wiz, they don't ever fail, and don't have 1031 /* If the caster is the wiz, they don't ever fail, and don't have
1002 * to have sufficient grace/mana. 1032 * to have sufficient grace/mana.
1003 */ 1033 */
1004 if (!QUERY_FLAG (op, FLAG_WIZ)) 1034 if (!QUERY_FLAG (op, FLAG_WIZCAST))
1005 { 1035 {
1006 if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) && 1036 if (SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) &&
1007 SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) > op->stats.sp) 1037 SP_level_spellpoint_cost (caster, spell_ob, SPELL_MANA) > op->stats.sp)
1008 { 1038 {
1009 op->failmsg ("You don't have enough mana!"); 1039 op->failmsg ("You don't have enough mana!");
… …
1132 } 1162 }
1133 1163
1134 op->change_skill (skill); /* needed for proper exp credit */ 1164 op->change_skill (skill); /* needed for proper exp credit */
1135 } 1165 }
1136 1166
1137 if (INVOKE_OBJECT (CAST_SPELL, spell_ob, ARG_OBJECT (op), ARG_OBJECT (caster), ARG_INT (dir), ARG_STRING (stringarg))) 1167 if (INVOKE_OBJECT (CAST_SPELL, spell_ob, ARG_OBJECT (op), ARG_OBJECT (caster), ARG_INT (dir), ARG_STRING (spellparam)))
1138 return RESULT_INT (0); 1168 return RESULT_INT (0);
1139 1169
1140 switch (spell_ob->subtype) 1170 switch (spell_ob->subtype)
1141 { 1171 {
1142 /* The order of case statements is same as the order they show up 1172 /* The order of case statements is same as the order they show up
1143 * in in spells.h. 1173 * in spells.h.
1144 */ 1174 */
1145 case SP_RAISE_DEAD: 1175 case SP_RAISE_DEAD:
1146 success = cast_raise_dead_spell (op, caster, spell_ob, dir, stringarg); 1176 success = cast_raise_dead_spell (op, caster, spell_ob, dir, spellparam);
1147 break; 1177 break;
1148 1178
1149 case SP_RUNE: 1179 case SP_RUNE:
1150 success = write_rune (op, caster, spell_ob, dir, stringarg); 1180 success = write_rune (op, caster, spell_ob, dir, spellparam);
1151 break; 1181 break;
1152 1182
1153 case SP_MAKE_MARK: 1183 case SP_MAKE_MARK:
1154 success = write_mark (op, spell_ob, stringarg); 1184 success = write_mark (op, spell_ob, spellparam);
1155 break; 1185 break;
1156 1186
1157 case SP_BOLT: 1187 case SP_BOLT:
1158 success = fire_bolt (op, caster, dir, spell_ob, skill); 1188 success = fire_bolt (op, caster, dir, spell_ob, skill);
1159 break; 1189 break;
… …
1188 1218
1189 case SP_DIMENSION_DOOR: 1219 case SP_DIMENSION_DOOR:
1190 /* dimension door needs the actual caster, because that is what is 1220 /* dimension door needs the actual caster, because that is what is
1191 * moved. 1221 * moved.
1192 */ 1222 */
1193 success = dimension_door (op, caster, spell_ob, dir); 1223 success = dimension_door (op, caster, spell_ob, dir, spellparam);
1194 break; 1224 break;
1195 1225
1196 case SP_MAGIC_MAPPING: 1226 case SP_MAGIC_MAPPING:
1197 if (op->type == PLAYER) 1227 if (op->type == PLAYER)
1198 { 1228 {
… …
1231 case SP_HEALING: 1261 case SP_HEALING:
1232 success = cast_heal (op, caster, spell_ob, dir); 1262 success = cast_heal (op, caster, spell_ob, dir);
1233 break; 1263 break;
1234 1264
1235 case SP_CREATE_FOOD: 1265 case SP_CREATE_FOOD:
1236 success = cast_create_food (op, caster, spell_ob, dir, stringarg); 1266 success = cast_create_food (op, caster, spell_ob, dir, spellparam);
1237 break; 1267 break;
1238 1268
1239 case SP_EARTH_TO_DUST: 1269 case SP_EARTH_TO_DUST:
1240 success = cast_earth_to_dust (op, caster, spell_ob); 1270 success = cast_earth_to_dust (op, caster, spell_ob);
1241 break; 1271 break;
… …
1251 case SP_CURSE: 1281 case SP_CURSE:
1252 success = cast_curse (op, caster, spell_ob, dir); 1282 success = cast_curse (op, caster, spell_ob, dir);
1253 break; 1283 break;
1254 1284
1255 case SP_SUMMON_MONSTER: 1285 case SP_SUMMON_MONSTER:
1256 success = summon_object (op, caster, spell_ob, dir, stringarg); 1286 success = summon_object (op, caster, spell_ob, dir, spellparam);
1257 break; 1287 break;
1258 1288
1259 case SP_CHARGING: 1289 case SP_CHARGING:
1260 success = recharge (op, caster, spell_ob); 1290 success = recharge (op, caster, spell_ob);
1261 break; 1291 break;
… …
1315 /* in rune.c */ 1345 /* in rune.c */
1316 success = dispel_rune (op, caster, spell_ob, skill, dir); 1346 success = dispel_rune (op, caster, spell_ob, skill, dir);
1317 break; 1347 break;
1318 1348
1319 case SP_CREATE_MISSILE: 1349 case SP_CREATE_MISSILE:
1320 success = cast_create_missile (op, caster, spell_ob, dir, stringarg); 1350 success = cast_create_missile (op, caster, spell_ob, dir, spellparam);
1321 break; 1351 break;
1322 1352
1323 case SP_CONSECRATE: 1353 case SP_CONSECRATE:
1324 success = cast_consecrate (op, caster, spell_ob); 1354 success = cast_consecrate (op, caster, spell_ob);
1325 break; 1355 break;
… …
1347 case SP_AURA: 1377 case SP_AURA:
1348 success = create_aura (op, caster, spell_ob); 1378 success = create_aura (op, caster, spell_ob);
1349 break; 1379 break;
1350 1380
1351 case SP_PARTY_SPELL: 1381 case SP_PARTY_SPELL:
1352 success = cast_party_spell (op, caster, dir, spell_ob, stringarg); 1382 success = cast_party_spell (op, caster, dir, spell_ob, spellparam);
1353 break; 1383 break;
1354 1384
1355 default: 1385 default:
1356 LOG (llevError, "cast_spell: Unhandled spell subtype %d\n", spell_ob->subtype); 1386 LOG (llevError, "cast_spell: Unhandled spell subtype %d\n", spell_ob->subtype);
1357 } 1387 }
… …
1434 check_bullet (op); 1464 check_bullet (op);
1435 return; 1465 return;
1436 } 1466 }
1437} 1467}
1438 1468
1439/* This is called by move_apply. Basically, if someone 1469/* This is called by move_apply. Basically, if someone
1440 * moves onto a spell effect and the walk_on or fly_on flags 1470 * moves onto a spell effect and the walk_on or fly_on flags
1441 * are set, this is called. This should only be called for 1471 * are set, this is called. This should only be called for
1442 * objects of the appropraite type. 1472 * objects of the appropriate type.
1443 */ 1473 */
1444void 1474void
1445apply_spell_effect (object *spell, object *victim) 1475apply_spell_effect (object *spell, object *victim)
1446{ 1476{
1447 switch (spell->subtype) 1477 switch (spell->subtype)
… …
1453 1483
1454 case SP_MAGIC_MISSILE: 1484 case SP_MAGIC_MISSILE:
1455 if (QUERY_FLAG (victim, FLAG_ALIVE)) 1485 if (QUERY_FLAG (victim, FLAG_ALIVE))
1456 { 1486 {
1457 hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1); 1487 hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);
1458
1459 if (!spell->destroyed ())
1460 spell->destroy (); 1488 spell->destroy ();
1461 } 1489 }
1462 break; 1490 break;
1463 1491
1464 case SP_MOVING_BALL: 1492 case SP_MOVING_BALL:
1465 if (QUERY_FLAG (victim, FLAG_ALIVE)) 1493 if (QUERY_FLAG (victim, FLAG_ALIVE))
1466 hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1); 1494 hit_player (victim, spell->stats.dam, spell, spell->attacktype, 1);
1467 else if (victim->materialname) 1495 else if (victim->materialname)
1468 save_throw_object (victim, spell->attacktype, spell); 1496 save_throw_object (victim, spell->attacktype, spell);
1469 break;
1470 }
1471}
1472 1497
1498 break;
1499 }
1500}
1501
1502/**
1503 * This function will let a fireball explode at the position of
1504 * the victim with a specific maximum level.
1505 */
1506void
1507create_exploding_ball_at (object *victim, int level)
1508{
1509 object *ball = get_archetype (EXPLODING_FIREBALL);
1510 ball->dam_modifier = random_roll (1, level, victim, PREFER_LOW) / 5 + 1;
1511 ball->stats.maxhp = random_roll (1, level, victim, PREFER_LOW) / 10 + 2;
1512 ball->insert_at (victim);
1513}

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