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Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.37 by root, Thu May 3 09:39:56 2007 UTC vs.
Revision 1.61 by root, Tue May 6 16:32:34 2008 UTC

1/* 1/*
2 * CrossFire, A Multiplayer game 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * 3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copryight (C) 2002 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version. 11 * (at your 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 GNU General Public License
19 * along with this program; if not, write to the Free Software 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * 20 *
22 * The author can be reached via e-mail to <crossfire@schmorp.de> 21 * The authors can be reached via e-mail to <support@deliantra.net>
23 */ 22 */
24 23
25/* Created July 95 to separate skill utilities from actual skills -b.t. */ 24/* Created July 95 to separate skill utilities from actual skills -b.t. */
26 25
27/* Reconfigured skills code to allow linking of skills to experience 26/* Reconfigured skills code to allow linking of skills to experience
61 * subtypes. 60 * subtypes.
62 */ 61 */
63void 62void
64init_skills (void) 63init_skills (void)
65{ 64{
66 for (archetype *at = first_archetype; at; at = at->next) 65 for_all_archetypes (at)
67 if (at->clone.type == SKILL) 66 if (at->type == SKILL)
68 { 67 {
69 if (skill_names[at->clone.subtype]) 68 if (skill_names[at->subtype])
70 LOG (llevError, "init_skills: multiple skill using same subtype %d, %s, %s\n", 69 LOG (llevError, "init_skills: multiple skill using same subtype %d, %s, %s\n",
71 at->clone.subtype, &skill_names[at->clone.subtype], &at->clone.skill); 70 at->subtype, &skill_names[at->subtype], &at->skill);
72 else 71 else
73 skill_names[at->clone.subtype] = at->clone.skill; 72 skill_names[at->subtype] = at->skill;
74 } 73 }
75 74
76 /* This isn't really an error if there is no skill subtype set, but 75 /* This isn't really an error if there is no skill subtype set, but
77 * checking for this may catch some user errors. 76 * checking for this may catch some user errors.
78 */ 77 */
105 op->contr->ns->last_skill_exp[tmp->subtype] = -1; //TODO: this should go 104 op->contr->ns->last_skill_exp[tmp->subtype] = -1; //TODO: this should go
106 } 105 }
107 } 106 }
108} 107}
109 108
109static object *
110find_skill (object *who, const shstr &sh)
111{
112 for (object *tmp = who->inv; tmp; tmp = tmp->below)
113 if (tmp->skill == sh && tmp->type == SKILL)
114 return tmp;
115
116 return 0;
117}
118
110/* This returns the skill pointer of the given name (the 119/* This returns the skill pointer of the given name (the
111 * one that accumlates exp, has the level, etc). 120 * one that accumulates exp, has the level, etc).
112 * 121 *
113 * It is presumed that the player will be needing to actually 122 * It is presumed that the player will be needing to actually
114 * use the skill, so thus if use of the skill requires a skill 123 * use the skill, so thus if use of the skill requires a skill
115 * tool, this code will equip it. 124 * tool, this code will equip it.
116 */ 125 */
117object * 126object *
118find_skill_by_name (object *who, const char *name) 127find_skill_by_name (object *who, const shstr &sh)
119{ 128{
120 object *skill = NULL, *skill_tool = NULL, *tmp; 129 object *skill_tool = 0;
121 130
122 if (!name)
123 return NULL;
124
125 /* We make sure the length of the string in the object is greater
126 * in length than the passed string. Eg, if we have a skill called
127 * 'hi', we don't want to match if the user passed 'high'
128 */
129 for (tmp = who->inv; tmp != NULL; tmp = tmp->below) 131 for (object *tmp = who->inv; tmp; tmp = tmp->below)
132 if (tmp->skill == sh)
130 { 133 {
131 if (tmp->type == SKILL && !strncasecmp (name, tmp->skill, strlen (name)) && (size_t) strlen (tmp->skill) >= strlen (name)) 134 if (tmp->type == SKILL && (tmp->flag [FLAG_CAN_USE_SKILL] || tmp->flag [FLAG_APPLIED]))
132 skill = tmp; 135 /* If this is a skill that can be used without applying tool, return it */
133 136 return splay (tmp);
134 /* Try to find appropriate skilltool. If the player has one already 137 /* Try to find appropriate skilltool. If the player has one already
135 * applied, we try to keep using that one. 138 * applied, we try to keep using that one.
136 */ 139 */
137 else if (tmp->type == SKILL_TOOL && !strncasecmp (name, tmp->skill, strlen (name)) && (size_t) strlen (tmp->skill) >= strlen (name)) 140 else if (tmp->type == SKILL_TOOL && !skill_tool)
138 {
139 if (QUERY_FLAG (tmp, FLAG_APPLIED))
140 skill_tool = tmp; 141 skill_tool = tmp;
141 else if (!skill_tool || !QUERY_FLAG (skill_tool, FLAG_APPLIED))
142 skill_tool = tmp;
143 } 142 }
144 } 143
145 /* If this is a skill that can be used without a tool, return it */ 144 if (!skill_tool)
146 if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))
147 return skill; 145 return 0;
148 146
149 /* Player has a tool to use the skill. IF not applied, apply it - 147 /* Player has a tool to use the skill. If not applied, apply it -
150 * if not successful, return null. If they do have the skill tool 148 * if not successful, return null. If they do have the skill tool
151 * but not the skill itself, give it to them. 149 * but not the skill itself, give it to them.
152 */ 150 */
153 if (skill_tool) 151 object *skill = find_skill (who, skill_tool->skill);
154 {
155 if (!QUERY_FLAG (skill_tool, FLAG_APPLIED))
156 {
157 if (apply_special (who, skill_tool, 0))
158 return NULL;
159 }
160 152
161 if (!skill) 153 if (!skill)
162 { 154 {
163 skill = give_skill_by_name (who, skill_tool->skill); 155 skill = give_skill_by_name (who, skill_tool->skill);
164 link_player_skills (who); 156 link_player_skills (who);
165 } 157 }
166 158
159 if (!skill_tool->flag [FLAG_APPLIED])
160 if (apply_special (who, splay (skill_tool), AP_APPLY | AP_NO_READY))
167 return skill; 161 return 0;
168 }
169 162
163 return splay (skill);
164}
165
166object *
167find_skill_by_name (object *who, const char *name)
168{
169 if (!name)
170 return 0;
171
172 for (object *tmp = who->inv; tmp; tmp = tmp->below)
173 if ((tmp->type == SKILL || tmp->type == SKILL_TOOL)
174 && tmp->skill.begins_with (name))
175 if (object *skop = find_skill_by_name (who, tmp->skill))
176 return skop;
177
170 return NULL; 178 return 0;
171} 179}
172
173 180
174/* This returns the skill pointer of the given name (the 181/* This returns the skill pointer of the given name (the
175 * one that accumlates exp, has the level, etc). 182 * one that accumulates exp, has the level, etc).
176 * 183 *
177 * It is presumed that the player will be needing to actually 184 * It is presumed that the player will be needing to actually
178 * use the skill, so thus if use of the skill requires a skill 185 * use the skill, so thus if use of the skill requires a skill
179 * tool, this code will equip it. 186 * tool, this code will equip it.
180 * 187 *
183 * this replaces find_skill. 190 * this replaces find_skill.
184 */ 191 */
185object * 192object *
186find_skill_by_number (object *who, int skillno) 193find_skill_by_number (object *who, int skillno)
187{ 194{
188 object *skill = NULL, *skill_tool = NULL, *tmp;
189
190 if (skillno < 1 || skillno >= NUM_SKILLS)
191 return NULL;
192
193 for (tmp = who->inv; tmp != NULL; tmp = tmp->below) 195 for (object *tmp = who->inv; tmp; tmp = tmp->below)
194 {
195 if (tmp->type == SKILL && tmp->subtype == skillno) 196 if (tmp->type == SKILL && tmp->subtype == skillno)
196 skill = tmp; 197 if (object *skop = find_skill_by_name (who, tmp->skill))
197
198 /* Try to find appropriate skilltool. If the player has one already
199 * applied, we try to keep using that one.
200 */
201 else if (tmp->type == SKILL_TOOL && tmp->subtype == skillno)
202 {
203 if (QUERY_FLAG (tmp, FLAG_APPLIED))
204 skill_tool = tmp;
205 else if (!skill_tool || !QUERY_FLAG (skill_tool, FLAG_APPLIED))
206 skill_tool = tmp;
207 }
208 }
209 /* If this is a skill that can be used without a tool, return it */
210 if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))
211 return skill;
212
213 /* Player has a tool to use the skill. IF not applied, apply it -
214 * if not successful, return null. If they do have the skill tool
215 * but not the skill itself, give it to them.
216 */
217 if (skill_tool)
218 {
219 if (!QUERY_FLAG (skill_tool, FLAG_APPLIED))
220 {
221 if (apply_special (who, skill_tool, 0))
222 return NULL;
223 }
224
225 if (!skill)
226 {
227 skill = give_skill_by_name (who, skill_tool->skill);
228 link_player_skills (who);
229 }
230
231 return skill; 198 return skop;
232 }
233 199
234 return NULL; 200 return 0;
235} 201}
236 202
237/* This changes the objects skill to new_skill. 203/* This changes the objects chosen_skill to new_skill.
238 * note that this function doesn't always need to get used -
239 * you can now add skill exp to the player without the chosen_skill being
240 * set. This function is of most interest to players to update
241 * the various range information.
242 * return 1 on success, 0 on error 204 * return 1 on success, 0 on error
243 */ 205 */
244int 206bool
245change_skill (object *who, object *new_skill, int flag) 207object::change_skill (object *new_skill)
246{ 208{
247 if (who->type != PLAYER) 209 if (type != PLAYER)
248 return 0; 210 return 0;
249 211
250 if (!new_skill) 212 // optimise this supposedly common case
251 { 213 if (new_skill == chosen_skill)
252 LOG (llevError | logBacktrace, "change_skill called on %s with NULL skill\n",
253 who->debug_desc ());
254 return 0;
255 }
256
257 player *pl = who->contr;
258
259 // move skill to front, so it will be preferred next time
260 new_skill->remove ();
261 who->insert (new_skill);
262
263 if (apply_special (who, new_skill, AP_APPLY))
264 return 0; 214 return 1;
265 215
216 if (chosen_skill)
217 {
218 chosen_skill->flag [FLAG_APPLIED] = false;
219 change_abil (this, chosen_skill);
220 }
221
222 chosen_skill = new_skill;
223
224 if (chosen_skill)
225 {
226 chosen_skill->flag [FLAG_APPLIED] = true;
227 change_abil (this, chosen_skill);
228 }
229
230 // always clear current weapon, as the selected skill could
231 // conflict with the current weapon skill, which would go
232 // undetected and exp would be given to the wrong skill.
233 current_weapon = 0;
234
235 update_stats ();
266 return 1; 236 return 1;
267}
268
269/* This function just clears the chosen_skill and range_skill values
270 * in the player.
271 */
272void
273clear_skill (object *who)
274{
275 who->chosen_skill = 0;
276 CLEAR_FLAG (who, FLAG_READY_SKILL);
277
278 if (who->type == PLAYER)
279 if (who->contr->ranged_ob && who->contr->ranged_ob->type == SKILL)
280 who->contr->ranged_ob = 0;
281} 237}
282 238
283/* do_skill() - Main skills use function-similar in scope to cast_spell(). 239/* do_skill() - Main skills use function-similar in scope to cast_spell().
284 * We handle all requests for skill use outside of some combat here. 240 * We handle all requests for skill use outside of some combat here.
285 * We require a separate routine outside of fire() so as to allow monsters 241 * We require a separate routine outside of fire() so as to allow monsters
293int 249int
294do_skill (object *op, object *part, object *skill, int dir, const char *string) 250do_skill (object *op, object *part, object *skill, int dir, const char *string)
295{ 251{
296 int success = 0, exp = 0; 252 int success = 0, exp = 0;
297 int did_alc = 0; 253 int did_alc = 0;
298 object *tmp, *next;
299 254
300 if (!skill) 255 if (!skill)
301 return 0; 256 return 0;
302 257
303 /* The code below presumes that the skill points to the object that 258 /* The code below presumes that the skill points to the object that
305 * go and try to find the actual real skill pointer, and if the 260 * go and try to find the actual real skill pointer, and if the
306 * the player doesn't have a bucket for that, create one. 261 * the player doesn't have a bucket for that, create one.
307 */ 262 */
308 if (skill->type != SKILL && op->type == PLAYER) 263 if (skill->type != SKILL && op->type == PLAYER)
309 { 264 {
310 for (tmp = op->inv; tmp != NULL; tmp = tmp->below) 265 for (object *tmp = op->inv; tmp; tmp = tmp->below)
311 if (tmp->type == SKILL && tmp->skill == skill->skill) 266 if (tmp->type == SKILL && tmp->skill == skill->skill)
312 break; 267 {
268 skill = tmp;
269 goto found;
270 }
313 271
314 if (!tmp)
315 tmp = give_skill_by_name (op, skill->skill); 272 skill = give_skill_by_name (op, skill->skill);
316 273found: ;
317 skill = tmp;
318 } 274 }
319 275
320 // skill, by_whom, on_which_object, which direction, skill_argument 276 // skill, by_whom, on_which_object, which direction, skill_argument
321 if (INVOKE_OBJECT (USE_SKILL, skill, ARG_OBJECT (op), ARG_OBJECT (part), ARG_INT (dir), ARG_STRING (string))) 277 if (INVOKE_OBJECT (USE_SKILL, skill, ARG_OBJECT (op), ARG_OBJECT (part), ARG_INT (dir), ARG_STRING (string)))
322 return 0; 278 return 0;
335 new_draw_info (NDI_UNIQUE, 0, op, "You come to earth."); 291 new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");
336 } 292 }
337 else 293 else
338 { 294 {
339 SET_FLAG (skill, FLAG_APPLIED); 295 SET_FLAG (skill, FLAG_APPLIED);
340 new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!."); 296 new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!");
341 } 297 }
342 298
343 op->update_stats (); 299 op->update_stats ();
344 success = 1; 300 success = 1;
345 break; 301 break;
427 case SK_LITERACY: 383 case SK_LITERACY:
428 case SK_WOODSMAN: 384 case SK_WOODSMAN:
429 /* first, we try to find a cauldron, and do the alchemy thing. 385 /* first, we try to find a cauldron, and do the alchemy thing.
430 * failing that, we go and identify stuff. 386 * failing that, we go and identify stuff.
431 */ 387 */
432 for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = next) 388 for (object *next, *tmp = GET_MAP_OB (op->map, op->x, op->y); tmp; tmp = next)
433 { 389 {
434 next = tmp->above; 390 next = tmp->above;
435 391
436 if (QUERY_FLAG (tmp, FLAG_IS_CAULDRON)) 392 if (QUERY_FLAG (tmp, FLAG_IS_CAULDRON))
437 { 393 {
498 * If certain skills should take more/less time, that should be 454 * If certain skills should take more/less time, that should be
499 * in the code for the skill itself. 455 * in the code for the skill itself.
500 */ 456 */
501 457
502 if (op->type == PLAYER) 458 if (op->type == PLAYER)
503 op->speed_left -= 1.0; 459 op->speed_left -= 1.f;
504 460
505 /* this is a good place to add experience for successfull use of skills. 461 /* this is a good place to add experience for successfull use of skills.
506 * Note that add_exp() will figure out player/monster experience 462 * Note that add_exp() will figure out player/monster experience
507 * gain problems. 463 * gain problems.
508 */ 464 */
554 * If an object is not alive and magical we set the base exp higher to 510 * If an object is not alive and magical we set the base exp higher to
555 * help out exp awards for skill_ident skills. Also, if 511 * help out exp awards for skill_ident skills. Also, if
556 * an item is type RUNE, we give out exp based on stats.Cha 512 * an item is type RUNE, we give out exp based on stats.Cha
557 * and level (this was the old system) -b.t. 513 * and level (this was the old system) -b.t.
558 */ 514 */
559
560 if (!op) 515 if (!op)
561 { /* no item/creature */ 516 { /* no item/creature */
562 op_lvl = who->map->difficulty < 1 ? 1 : who->map->difficulty; 517 op_lvl = max (1, who->map->difficulty);
563 op_exp = 0; 518 op_exp = 0;
564 } 519 }
565 else if (op->type == RUNE || op->type == TRAP) 520 else if (op->type == RUNE || op->type == TRAP)
566 { /* all traps. If stats.Cha > 1 we use that 521 { /* all traps. If stats.Cha > 1 we use that
567 * for the amount of experience */ 522 * for the amount of experience */
571 else 526 else
572 { /* all other items/living creatures */ 527 { /* all other items/living creatures */
573 op_exp = op->stats.exp; 528 op_exp = op->stats.exp;
574 op_lvl = op->level; 529 op_lvl = op->level;
575 if (!QUERY_FLAG (op, FLAG_ALIVE)) 530 if (!QUERY_FLAG (op, FLAG_ALIVE))
576 { /* for ident/make items */ 531 op_lvl += 5 * abs (op->magic); /* for ident/make items */
577 op_lvl += 5 * abs (op->magic);
578 }
579 } 532 }
580 533
581 if (op_lvl < 1) 534 if (op_lvl < 1)
582 op_lvl = 1; 535 op_lvl = 1;
583 536
591 /* if skill really is a skill, then we can look at the skill archetype for 544 /* if skill really is a skill, then we can look at the skill archetype for
592 * bse reward value (exp) and level multiplier factor. 545 * bse reward value (exp) and level multiplier factor.
593 */ 546 */
594 if (skill->type == SKILL) 547 if (skill->type == SKILL)
595 { 548 {
596 base += skill->arch->clone.stats.exp; 549 base += skill->arch->stats.exp;
597 if (settings.simple_exp) 550 if (settings.simple_exp)
598 { 551 {
599 if (skill->arch->clone.level) 552 if (skill->arch->level)
600 lvl_mult = (float) skill->arch->clone.level / 100.0; 553 lvl_mult = (float) skill->arch->level / 100.0;
601 else 554 else
602 lvl_mult = 1.0; /* no adjustment */ 555 lvl_mult = 1.0; /* no adjustment */
603 } 556 }
604 else 557 else
605 { 558 {
606 if (skill->level) 559 if (skill->level)
607 lvl_mult = ((float) skill->arch->clone.level * (float) op_lvl) / ((float) skill->level * 100.0); 560 lvl_mult = ((float) skill->arch->level * (float) op_lvl) / ((float) skill->level * 100.0);
608 else 561 else
609 lvl_mult = 1.0; 562 lvl_mult = 1.0;
610 } 563 }
611 } 564 }
612 else 565 else
613 { 566 {
614 /* Don't divide by zero here! */ 567 /* Don't divide by zero here! */
615 lvl_mult = (float) op_lvl / (float) (skill->level ? skill->level : 1); 568 lvl_mult = (float) op_lvl / (float) max (1, skill->level);
616 } 569 }
617 } 570 }
618 571
619 /* assemble the exp total, and return value */ 572 /* assemble the exp total, and return value */
620 573
637 * player learns the skill, 2 otherwise. 590 * player learns the skill, 2 otherwise.
638 */ 591 */
639int 592int
640learn_skill (object *pl, object *scroll) 593learn_skill (object *pl, object *scroll)
641{ 594{
642 object *tmp;
643
644 if (!scroll->skill) 595 if (!scroll->skill)
645 { 596 {
646 LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name); 597 LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name);
647 return 2; 598 return 2;
648 } 599 }
649 600
650 /* can't use find_skill_by_name because we want skills the player knows 601 object *tmp = find_skill (pl, scroll->skill);
651 * but can't use natively.
652 */
653
654 for (tmp = pl->inv; tmp != NULL; tmp = tmp->below)
655 if (tmp->type == SKILL && !strncasecmp (scroll->skill, tmp->skill, strlen (scroll->skill)))
656 break;
657 602
658 /* player already knows it */ 603 /* player already knows it */
659 if (tmp && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL)) 604 if (tmp && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL))
660 return 0; 605 return 0;
661 606
679 link_player_skills (pl); 624 link_player_skills (pl);
680 return 1; 625 return 1;
681} 626}
682 627
683/* Gives a percentage clipped to 0% -> 100% of a/b. */ 628/* Gives a percentage clipped to 0% -> 100% of a/b. */
684
685/* Probably belongs in some global utils-type file? */ 629/* Probably belongs in some global utils-type file? */
686static int 630static int
687clipped_percent (sint64 a, sint64 b) 631clipped_percent (sint64 a, sint64 b)
688{ 632{
689 int rv; 633 int rv;
709 * Note this function is a bit more complicated becauase we 653 * Note this function is a bit more complicated becauase we
710 * we want ot sort the skills before printing them. If we 654 * we want ot sort the skills before printing them. If we
711 * just dumped this as we found it, this would be a bit 655 * just dumped this as we found it, this would be a bit
712 * simpler. 656 * simpler.
713 */ 657 */
714 658//TODO: egad, do it in perl, do not suffer from the big buffer on stack, make it one single drawinfo.
715void 659void
716show_skills (object *op, const char *search) 660show_skills (object *op, const char *search)
717{ 661{
718 object *tmp = NULL; 662 object *tmp = NULL;
719 char buf[MAX_BUF]; 663 char buf[MAX_BUF];
721 int i, num_skills_found = 0; 665 int i, num_skills_found = 0;
722 static const char *const periods = "........................................"; 666 static const char *const periods = "........................................";
723 667
724 /* Need to have a pointer and use strdup for qsort to work properly */ 668 /* Need to have a pointer and use strdup for qsort to work properly */
725 char skills[NUM_SKILLS][MAX_BUF]; 669 char skills[NUM_SKILLS][MAX_BUF];
726
727 670
728 for (tmp = op->inv; tmp != NULL; tmp = tmp->below) 671 for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
729 { 672 {
730 if (tmp->type == SKILL) 673 if (tmp->type == SKILL)
731 { 674 {
734 /* Basically want to fill this out to 40 spaces with periods */ 677 /* Basically want to fill this out to 40 spaces with periods */
735 sprintf (buf, "%s%s", &tmp->name, periods); 678 sprintf (buf, "%s%s", &tmp->name, periods);
736 buf[40] = 0; 679 buf[40] = 0;
737 680
738 if (settings.permanent_exp_ratio) 681 if (settings.permanent_exp_ratio)
739 {
740 sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%" PRId64 "/%" PRId64 "/%d%%)", 682 sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%" PRId64 "/%" PRId64 "/%d%%)",
741 buf, tmp->level, tmp->stats.exp, 683 buf, tmp->level, tmp->stats.exp,
742 level_exp (tmp->level + 1, op->expmul), clipped_percent (tmp->perm_exp, tmp->stats.exp)); 684 level_exp (tmp->level + 1, op->expmul), clipped_percent (tmp->perm_exp, tmp->stats.exp));
743 }
744 else 685 else
745 {
746 sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%" PRId64 "/%" PRId64 ")", 686 sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%" PRId64 "/%" PRId64 ")",
747 buf, tmp->level, tmp->stats.exp, level_exp (tmp->level + 1, op->expmul)); 687 buf, tmp->level, tmp->stats.exp, level_exp (tmp->level + 1, op->expmul));
748 } 688
749 /* I don't know why some characters get a bunch of skills, but 689 /* I don't know why some characters get a bunch of skills, but
750 * it sometimes happens (maybe a leftover from bugier earlier code 690 * it sometimes happens (maybe a leftover from bugier earlier code
751 * and those character are still about). In any case, lets handle 691 * and those character are still about). In any case, lets handle
752 * it so it doesn't crash the server - otherwise, one character may 692 * it so it doesn't crash the server - otherwise, one character may
753 * crash the server numerous times. 693 * crash the server numerous times.
759 break; 699 break;
760 } 700 }
761 } 701 }
762 } 702 }
763 703
764 clear_win_info (op);
765 new_draw_info (NDI_UNIQUE, 0, op, "Player skills:"); 704 new_draw_info (NDI_UNIQUE, 0, op, "Player skills:");
766 if (num_skills_found > 1) 705 if (num_skills_found > 1)
767 qsort (skills, num_skills_found, MAX_BUF, (int (*)(const void *, const void *)) std::strcmp); 706 qsort (skills, num_skills_found, MAX_BUF, (int (*)(const void *, const void *)) std::strcmp);
768 707
769 for (i = 0; i < num_skills_found; i++) 708 for (i = 0; i < num_skills_found; i++)
782 * direction that the user is facing. Returns false if we are unable to 721 * direction that the user is facing. Returns false if we are unable to
783 * change to the requested skill, or were unable to use the skill properly. 722 * change to the requested skill, or were unable to use the skill properly.
784 * This is tricky because skills can have spaces. We basically roll 723 * This is tricky because skills can have spaces. We basically roll
785 * our own find_skill_by_name so we can try to do better string matching. 724 * our own find_skill_by_name so we can try to do better string matching.
786 */ 725 */
787
788int 726int
789use_skill (object *op, const char *string) 727use_skill (object *op, const char *string)
790{ 728{
791 object *skop; 729 object *skop;
792 size_t len; 730 size_t len;
793 731
794 if (!string) 732 if (!string)
795 return 0; 733 return 0;
796 734
797 for (skop = op->inv; skop != NULL; skop = skop->below) 735 for (skop = op->inv; skop; skop = skop->below)
798 { 736 {
737 if (skop->type == SKILL
799 if (skop->type == SKILL && QUERY_FLAG (skop, FLAG_CAN_USE_SKILL) && 738 && QUERY_FLAG (skop, FLAG_CAN_USE_SKILL)
800 !strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill)))) 739 && !strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))
801 break; 740 break;
741 else if (skop->type == SKILL_TOOL
802 else if (skop->type == SKILL_TOOL && !strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill)))) 742 && !strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))
803 break; 743 break;
804 } 744 }
745
805 if (!skop) 746 if (!skop)
806 { 747 {
807 new_draw_info_format (NDI_UNIQUE, 0, op, "Unable to find skill %s", string); 748 new_draw_info_format (NDI_UNIQUE, 0, op, "Unable to find skill %s", string);
808 return 0; 749 return 0;
809 } 750 }
814 * options given to the skill. Its pretty simple - if there 755 * options given to the skill. Its pretty simple - if there
815 * are extra parameters (as deteremined by string length), we 756 * are extra parameters (as deteremined by string length), we
816 * want to skip over any leading spaces. 757 * want to skip over any leading spaces.
817 */ 758 */
818 if (len >= strlen (string)) 759 if (len >= strlen (string))
819 {
820 string = NULL; 760 string = NULL;
821 }
822 else 761 else
823 { 762 {
824 string += len; 763 string += len;
825 while (*string == 0x20) 764 while (*string == 0x20)
826 string++; 765 string++;
766
827 if (strlen (string) == 0) 767 if (strlen (string) == 0)
828 string = NULL; 768 string = NULL;
829 } 769 }
830 770
831#ifdef SKILL_UTIL_DEBUG 771#ifdef SKILL_UTIL_DEBUG
832 LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none"); 772 LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none");
833#endif 773#endif
834 774
835 /* Change to the new skill, then execute it. */
836 if (do_skill (op, op, skop, op->facing, string)) 775 if (do_skill (op, op, skop, op->facing, string))
837 return 1; 776 return 1;
838 777
839 return 0; 778 return 0;
840} 779}
887 for (tmp = op->inv; tmp; tmp = tmp->below) 826 for (tmp = op->inv; tmp; tmp = tmp->below)
888 if (tmp->type == WEAPON && QUERY_FLAG (tmp, FLAG_APPLIED)) 827 if (tmp->type == WEAPON && QUERY_FLAG (tmp, FLAG_APPLIED))
889 break; 828 break;
890 829
891 if (!tmp) 830 if (!tmp)
892 {
893 LOG (llevError, "Could not find applied weapon on %s\n", &op->name); 831 LOG (llevError, "Could not find applied weapon on %s\n", &op->name);
894 return 0;
895 }
896 832
897 change_skill (op, find_skill_by_name (op, tmp->skill), 1); 833 pl->combat_ob = tmp;
898 } 834 }
899 else 835
836 if (!pl->combat_ob)
900 { 837 {
901 if (!skill) 838 if (!skill)
902 { 839 {
903 /* See if the players chosen skill is a combat skill, and use 840 /* See if the players chosen skill is a combat skill, and use
904 * it if appropriate. 841 * it if appropriate.
908 else 845 else
909 { 846 {
910 skill = find_player_hth_skill (op); 847 skill = find_player_hth_skill (op);
911 848
912 if (!skill) 849 if (!skill)
913 {
914 new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!"); 850 new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!");
915 return 0;
916 }
917 } 851 }
918 } 852 }
919 853
920 /* now try to ready the new skill */ 854 if (skill)
921 if (!change_skill (op, skill, 0)) 855 {
922 { /* oh oh, trouble! */ 856 op->change_skill (0);
923 new_draw_info_format (NDI_UNIQUE, 0, op, "Couldn't change to skill %s", &skill->name); 857 apply_special (op, skill, AP_APPLY);
924 return 0;
925 } 858 }
926 } 859 }
927 860
928 if (!pl->combat_ob) 861 if (!pl->combat_ob)
929 { 862 {
930 LOG (llevError, "Could not find anything to attack on %s\n", &op->name); 863 LOG (llevError, "Could not find anything to attack on %s\n", &op->name);
931 return 0; 864 return 0;
932 } 865 }
933 } 866 }
934 867
935 if (op->current_weapon != pl->combat_ob) 868 if (!op->change_weapon (pl->combat_ob))
936 { 869 return 0;
937 op->current_weapon = pl->combat_ob;
938 new_draw_info_format (NDI_UNIQUE, 0, op, "You switch to your %s.", &op->current_weapon->name);
939 op->update_stats ();
940 }
941 870
942 /* lose invisiblity/hiding status for running attacks */ 871 /* lose invisiblity/hiding status for running attacks */
943
944 if (pl->tmp_invis) 872 if (pl->tmp_invis)
945 { 873 {
946 pl->tmp_invis = 0; 874 pl->tmp_invis = 0;
947 op->invisible = 0; 875 op->invisible = 0;
948 op->hide = 0; 876 op->hide = 0;
1080 1008
1081 return 0; 1009 return 0;
1082 } 1010 }
1083 1011
1084 return skill_attack (NULL, op, dir, string, skill); 1012 return skill_attack (NULL, op, dir, string, skill);
1085
1086} 1013}
1014

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