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

Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.9 by root, Sun Sep 10 15:59:57 2006 UTC vs.
Revision 1.109 by root, Sat Nov 17 23:40:04 2018 UTC

…		…
1
2	/*	1	/*
3	* static char *rcsid_skill_util_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
4	* "$Id: skill_util.C,v 1.9 2006/09/10 15:59:57 root Exp $";
5	*/	3	*
6		4	* Copyright (©) 2017,2018 Marc Alexander Lehmann / the Deliantra team
7	/*	5	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
8	CrossFire, A Multiplayer game for X-windows
9
10	Copryight (C) 2002 Mark Wedel & Crossfire Development Team	6	* Copyright (©) 2002 Mark Wedel & Crossfire Development Team
11	Copyright (C) 1992 Frank Tore Johansen	7	* Copyright (©) 1992 Frank Tore Johansen
12		8	*
13	This program is free software; you can redistribute it and/or modify	9	* Deliantra is free software: you can redistribute it and/or modify it under
14	it under the terms of the GNU General Public License as published by	10	* the terms of the Affero GNU General Public License as published by the
15	the Free Software Foundation; either version 2 of the License, or	11	* Free Software Foundation, either version 3 of the License, or (at your
16	(at your option) any later version.	12	* option) any later version.
17		13	*
18	This program is distributed in the hope that it will be useful,	14	* This program is distributed in the hope that it will be useful,
19	but WITHOUT ANY WARRANTY; without even the implied warranty of	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
20	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21	GNU General Public License for more details.	17	* GNU General Public License for more details.
22		18	*
23	You should have received a copy of the GNU General Public License	19	* You should have received a copy of the Affero GNU General Public License
24	along with this program; if not, write to the Free Software	20	* and the GNU General Public License along with this program. If not, see
25	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	21	* <http://www.gnu.org/licenses/>.
26		22	*
27	The author can be reached via e-mail to crossfire-devel@real-time.com	23	* The authors can be reached via e-mail to <support@deliantra.net>
28	*/	24	*/
29		25
30	/* Created July 95 to separate skill utilities from actual skills -b.t. */	26	/* Created July 95 to separate skill utilities from actual skills -b.t. */
31		27
32	/* Reconfigured skills code to allow linking of skills to experience	28	/* Reconfigured skills code to allow linking of skills to experience
33	* categories. This is done solely through the init_new_exp_system() fctn.	29	* categories. This is done solely through the init_new_exp_system() fctn.
43		39
44	/* define the following for skills utility debuging */	40	/* define the following for skills utility debuging */
45		41
46	/* #define SKILL_UTIL_DEBUG */	42	/* #define SKILL_UTIL_DEBUG */
47		43
48	#define WANT_UNARMED_SKILLS
49
50	#include <global.h>	44	#include <global.h>
51	#include <object.h>	45	#include <object.h>
52	#ifndef __CEXTRACT__
53	# include <sproto.h>	46	#include <sproto.h>
54	#endif
55	#include <living.h> /* for defs of STR,CON,DEX,etc. -b.t. */	47	#include <living.h> /* for defs of STR,CON,DEX,etc. -b.t. */
56	#include <spells.h>	48	#include <spells.h>
57		49
		50	const uint8_t skill_flags[NUM_SKILLS] = {
		51	0, // SK_NONE
		52	# define def(uc, flags) flags,
		53	# include "skillinc.h"
		54	# undef def
		55	};
		56
		57	vector<object_ptr> skillvec;
		58
58	static int attack_hth (object pl, int dir, const char string, object *skill);	59	static int attack_hth (object pl, int dir, const char string, object *skill);
59	static int attack_melee_weapon (object op, int dir, const char string, object *skill);	60	static int attack_melee_weapon (object op, int dir, const char string, object *skill);
60
61	shstr skill_names[NUM_SKILLS];
62		61
63	/* init_skills basically just sets up the skill_names table	62	/* init_skills basically just sets up the skill_names table
64	* above. The index into the array is set up by the	63	* above. The index into the array is set up by the
65	* subtypes.	64	* subtypes.
66	*/	65	*/
67	void	66	void
68	init_skills (void)	67	init_skills ()
69	{	68	{
70	int i;	69	// nop
71	archetype *at;	70	}
72		71
73	for (at = first_archetype; at != NULL; at = at->next)	72	void
74	{	73	add_skill_archetype (object *o)
75	if (at->clone.type == SKILL)	74	{
		75	assert (("skill name must equal skill skill", o->name == o->skill));
		76
		77	for (vector<object_ptr>::iterator i = skillvec.begin (); i != skillvec.end (); ++i)
		78	if ((*i)->name == o->name)
76	{	79	{
77	if (skill_names[at->clone.subtype] != NULL)	80	// replace existing entry
78	{	81	SKILL_INDEX (o) = i - skillvec.begin ();
79	LOG (llevError, "init_skills: multiple skill using same subtype %d, %s, %s\n",	82	*i = o;
80	at->clone.subtype, &skill_names[at->clone.subtype], &at->clone.skill);	83	return;
81	}
82	else
83	{
84	skill_names[at->clone.subtype] = at->clone.skill;
85	}
86	}	84	}
87	}
88		85
89	/* This isn't really an error if there is no skill subtype set, but	86	// add new entry
90	* checking for this may catch some user errors.	87	assert (("only CS_NUM_SKILLS skills supported by client protocol", skillvec.size () < CS_NUM_SKILLS));
91	*/	88	SKILL_INDEX (o) = skillvec.size ();
92	for (i = 1; i < NUM_SKILLS; i++)	89	skillvec.push_back (o);
93	{
94	if (!skill_names[i])
95	LOG (llevError, "init_skills: skill subtype %d doesn't have a name?\n", i);
96	}
97	}	90	}
98
99		91
100	/* This function goes through the player inventory and sets	92	/* This function goes through the player inventory and sets
101	* up the last_skills[] array in the player object.	93	* up the last_skills[] array in the player object.
102	* the last_skills[] is used to more quickly lookup skills -	94	* the last_skills[] is used to more quickly lookup skills -
103	* mostly used for sending exp.	95	* mostly used for sending exp.
104	*/	96	*/
105	void	97	void
106	link_player_skills (object *op)	98	player::link_skills ()
107	{	99	{
108	object *tmp;	100	for (int i = 0; i < CS_NUM_SKILLS; ++i)
		101	last_skill_ob [i] = 0;
109		102
110	for (tmp = op->inv; tmp; tmp = tmp->below)	103	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
111	{
112	if (tmp->type == SKILL)	104	if (tmp->type == SKILL)
113	{	105	{
114	/* This is really a warning, hence no else below */	106	int idx = SKILL_INDEX (tmp);
115	if (op->contr->last_skill_ob[tmp->subtype] && op->contr->last_skill_ob[tmp->subtype] != tmp)	107
		108	assert (IN_RANGE_EXC (idx, 0, CS_NUM_SKILLS));
		109
		110	if (last_skill_ob [idx] != tmp)
116	{	111	{
117	LOG (llevError, "Multiple skills with the same subtype? %s, %s\n",	112	last_skill_ob [idx] = tmp;
118	&op->contr->last_skill_ob[tmp->subtype]->skill, &tmp->skill);	113	if (ns)
		114	ns->last_skill_exp [idx] = -1;
119	}	115	}
120	if (tmp->subtype >= NUM_SKILLS)
121	{
122	LOG (llevError, "Invalid subtype number %d (range 0-%d)\n", tmp->subtype, NUM_SKILLS);
123	}
124	else
125	{
126	op->contr->last_skill_ob[tmp->subtype] = tmp;
127	op->contr->last_skill_exp[tmp->subtype] = -1;
128	}
129	}	116	}
130	}	117	}
		118
		119	static object *
		120	find_skill (object *who, shstr_cmp name)
		121	{
		122	if (who->chosen_skill
		123	&& who->chosen_skill->skill == name
		124	&& who->chosen_skill->type == SKILL)
		125	return who->chosen_skill;
		126
		127	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		128	if (tmp->skill == name && tmp->type == SKILL)
		129	return splay (tmp);
		130
		131	return 0;
		132	}
		133
		134	object *
		135	player::find_skill (shstr_cmp name) const
		136	{
		137	// might want to use last_skill_obj at one point, or maybe not
		138	return ::find_skill (ob, name);
131	}	139	}
132		140
133	/* This returns the skill pointer of the given name (the	141	/* This returns the skill pointer of the given name (the
134	* one that accumlates exp, has the level, etc).	142	* one that accumulates exp, has the level, etc).
135	*	143	*
136	* It is presumed that the player will be needing to actually	144	* It is presumed that the player will be needing to actually
137	* use the skill, so thus if use of the skill requires a skill	145	* use the skill, so thus if use of the skill requires a skill
138	* tool, this code will equip it.	146	* tool, this code will equip it.
139	*/	147	*/
140	object *	148	object *
141	find_skill_by_name (object who, const char name)	149	find_skill_by_name (object *who, shstr_cmp sh)
142	{	150	{
143	object skill = NULL, skill_tool = NULL, *tmp;	151	object *skill_tool = 0;
144		152
145	if (!name)
146	return NULL;
147
148	/* We make sure the length of the string in the object is greater
149	* in length than the passed string. Eg, if we have a skill called
150	* 'hi', we don't want to match if the user passed 'high'
151	*/
152	for (tmp = who->inv; tmp != NULL; tmp = tmp->below)	153	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		154	if (tmp->skill == sh)
153	{	155	{
154	if (tmp->type == SKILL && !strncasecmp (name, tmp->skill, strlen (name)) && (size_t) strlen (tmp->skill) >= strlen (name))	156	if (tmp->type == SKILL && (tmp->flag [FLAG_CAN_USE_SKILL] \|\| tmp->flag [FLAG_APPLIED]))
155	skill = tmp;	157	/* If this is a skill that can be used without applying tool, return it */
156		158	return splay (tmp);
157	/* Try to find appropriate skilltool. If the player has one already	159	/* Try to find appropriate skilltool. If the player has one already
158	* applied, we try to keep using that one.	160	* applied, we try to keep using that one.
159	*/	161	*/
160	else if (tmp->type == SKILL_TOOL && !strncasecmp (name, tmp->skill, strlen (name)) && (size_t) strlen (tmp->skill) >= strlen (name))	162	else if (tmp->type == SKILL_TOOL && !skill_tool)
161	{
162	if (QUERY_FLAG (tmp, FLAG_APPLIED))
163	skill_tool = tmp;	163	skill_tool = tmp;
164	else if (!skill_tool \|\| !QUERY_FLAG (skill_tool, FLAG_APPLIED))
165	skill_tool = tmp;
166	}	164	}
167	}	165
168	/* If this is a skill that can be used without a tool, return it */	166	if (!skill_tool)
169	if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))
170	return skill;	167	return 0;
171		168
172	/* Player has a tool to use the skill. IF not applied, apply it -	169	/* Player has a tool to use the skill. If not applied, apply it -
173	* if not successful, return null. If they do have the skill tool	170	* if not successful, return null. If they do have the skill tool
174	* but not the skill itself, give it to them.	171	* but not the skill itself, give it to them.
175	*/	172	*/
176	if (skill_tool)	173	object *skill = who->give_skill (skill_tool->skill);
177	{	174
178	if (!QUERY_FLAG (skill_tool, FLAG_APPLIED))	175	if (!skill_tool->flag [FLAG_APPLIED])
179	{	176	if (!who->apply (splay (skill_tool)))
180	if (apply_special (who, skill_tool, 0))
181	return NULL;
182	}
183	if (!skill)
184	{
185	skill = give_skill_by_name (who, skill_tool->skill);
186	link_player_skills (who);
187	}
188	return skill;	177	return 0;
189	}	178
		179	return splay (skill);
		180	}
		181
		182	object *
		183	find_skill_by_name_fuzzy (object who, const char name)
		184	{
		185	if (name)
		186	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		187	if ((tmp->type == SKILL \|\| tmp->type == SKILL_TOOL)
		188	&& tmp->skill.starts_with (name))
		189	if (object *skop = find_skill_by_name (who, tmp->skill))
		190	return skop;
		191
190	return NULL;	192	return 0;
191	}	193	}
192
193		194
194	/* This returns the skill pointer of the given name (the	195	/* This returns the skill pointer of the given name (the
195	* one that accumlates exp, has the level, etc).	196	* one that accumulates exp, has the level, etc).
196	*	197	*
197	* It is presumed that the player will be needing to actually	198	* It is presumed that the player will be needing to actually
198	* use the skill, so thus if use of the skill requires a skill	199	* use the skill, so thus if use of the skill requires a skill
199	* tool, this code will equip it.	200	* tool, this code will equip it.
200	*	201	*
201	* This code is basically the same as find_skill_by_name() above,	202	* This code is basically the same as find_skill_by_name() above,
202	* but instead a skill name, we search by matching number.	203	* but instead a skill name, we search by matching number.
203	* this replaces find_skill.	204	* this replaces find_skill.
		205	*
		206	* MUST NOT BE USED IN NEW CODE! (schmorp)
204	*/	207	*/
205	object *	208	object *
206	find_skill_by_number (object *who, int skillno)	209	find_skill_by_number (object *who, int skillno)
207	{	210	{
208	object skill = NULL, skill_tool = NULL, *tmp;
209
210	if (skillno < 1 \|\| skillno >= NUM_SKILLS)
211	return NULL;
212
213	for (tmp = who->inv; tmp != NULL; tmp = tmp->below)	211	for (object *tmp = who->inv; tmp; tmp = tmp->below)
214	{
215	if (tmp->type == SKILL && tmp->subtype == skillno)	212	if (tmp->type == SKILL && tmp->subtype == skillno)
216	skill = tmp;	213	if (object *skop = find_skill_by_name (who, tmp->skill))
		214	return skop;
217		215
218	/* Try to find appropriate skilltool. If the player has one already	216	return 0;
219	* applied, we try to keep using that one.	217	}
220	*/	218
221	else if (tmp->type == SKILL_TOOL && tmp->subtype == skillno)	219	object *
222	{	220	object::give_skill (shstr_cmp name, bool can_use)
223	if (QUERY_FLAG (tmp, FLAG_APPLIED))	221	{
224	skill_tool = tmp;	222	object *skill = find_skill (this, name);
225	else if (!skill_tool \|\| !QUERY_FLAG (skill_tool, FLAG_APPLIED))	223
226	skill_tool = tmp;	224	if (!skill)
227	}	225	skill = give_skill_by_name (this, name);
228	}	226
229	/* If this is a skill that can be used without a tool, return it */	227	if (skill && can_use)
230	if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))	228	skill->flag [FLAG_CAN_USE_SKILL] = true;
		229
231	return skill;	230	return skill;
232
233	/* Player has a tool to use the skill. IF not applied, apply it -
234	* if not successful, return null. If they do have the skill tool
235	* but not the skill itself, give it to them.
236	*/
237	if (skill_tool)
238	{
239	if (!QUERY_FLAG (skill_tool, FLAG_APPLIED))
240	{
241	if (apply_special (who, skill_tool, 0))
242	return NULL;
243	}
244	if (!skill)
245	{
246	skill = give_skill_by_name (who, skill_tool->skill);
247	link_player_skills (who);
248	}
249	return skill;
250	}
251	return NULL;
252	}	231	}
253		232
254	/* This changes the objects skill to new_skill.
255	* note that this function doesn't always need to get used -
256	* you can now add skill exp to the player without the chosen_skill being
257	* set. This function is of most interest to players to update
258	* the various range information.
259	* if new_skill is null, this just unapplies the skill.
260	* flag has the current meaning:
261	* 0x1: If set, don't update the range pointer. This is useful when we
262	* need to ready a new skill, but don't want to clobber range.
263	* return 1 on success, 0 on error
264	*/
265
266	int
267	change_skill (object who, object new_skill, int flag)
268	{
269	int old_range;
270
271	if (who->type != PLAYER)
272	return 0;
273
274	old_range = who->contr->shoottype;
275
276	if (who->chosen_skill && who->chosen_skill == new_skill)
277	{
278	/* optimization for changing skill to current skill */
279	if (who->type == PLAYER && !(flag & 0x1))
280	who->contr->shoottype = range_skill;
281	return 1;
282	}
283
284	if (!new_skill \|\| who->chosen_skill)
285	if (who->chosen_skill)
286	apply_special (who, who->chosen_skill, AP_UNAPPLY);
287
288	/* Only goal in this case was to unapply a skill */
289	if (!new_skill)
290	return 0;
291
292	if (apply_special (who, new_skill, AP_APPLY))
293	{
294	return 0;
295	}
296	if (flag & 0x1)
297	who->contr->shoottype = (rangetype) old_range;
298
299	return 1;
300	}
301
302	/* This function just clears the chosen_skill and range_skill values
303	* inthe player.
304	*/
305	void
306	clear_skill (object *who)
307	{
308	who->chosen_skill = NULL;
309	CLEAR_FLAG (who, FLAG_READY_SKILL);
310	if (who->type == PLAYER)
311	{
312	who->contr->ranges[range_skill] = NULL;
313	if (who->contr->shoottype == range_skill)
314	who->contr->shoottype = range_none;
315	}
316	}
317
318	/* do_skill() - Main skills use function-similar in scope to cast_spell().	233	/* do_skill() - Main skills use function-similar in scope to cast_spell().
319	* We handle all requests for skill use outside of some combat here.	234	* We handle all requests for skill use outside of some combat here.
320	* We require a separate routine outside of fire() so as to allow monsters	235	* We require a separate routine outside of fire() so as to allow monsters
321	* to utilize skills. Returns 1 on use of skill, otherwise 0.	236	* to utilize skills. Returns 1 on use of skill, otherwise 0.
322	* This is changed (2002-11-30) from the old method that returned	237	* This is changed (2002-11-30) from the old method that returned
323	* exp - no caller needed that info, but it also prevented the callers	238	* exp - no caller needed that info, but it also prevented the callers
324	* from know if a skill was actually used, as many skills don't	239	* from know if a skill was actually used, as many skills don't
325	* give any exp for their direct use (eg, throwing).	240	* give any exp for their direct use (eg, throwing).
326	* It returns 0 if no skill was used.	241	* It returns 0 if no skill was used.
327	*/	242	*/
328
329	int	243	int
330	do_skill (object op, object part, object skill, int dir, const char string)	244	do_skill (object op, object part, object skill, int dir, const char string)
331	{	245	{
332	int success = 0, exp = 0;	246	int success = 0, exp = 0;
333	int did_alc = 0;
334	object tmp, next;
335		247
336	if (!skill)	248	if (!skill)
337	return 0;	249	return 0;
338		250
339	/* The code below presumes that the skill points to the object that	251	/* The code below presumes that the skill points to the object that
…		…
341	* go and try to find the actual real skill pointer, and if the	253	* go and try to find the actual real skill pointer, and if the
342	* the player doesn't have a bucket for that, create one.	254	* the player doesn't have a bucket for that, create one.
343	*/	255	*/
344	if (skill->type != SKILL && op->type == PLAYER)	256	if (skill->type != SKILL && op->type == PLAYER)
345	{	257	{
346	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	258	for (object *tmp = op->inv; tmp; tmp = tmp->below)
347	{
348	if (tmp->type == SKILL && tmp->skill == skill->skill)	259	if (tmp->type == SKILL && tmp->skill == skill->skill)
349	break;	260	{
		261	skill = tmp;
		262	goto found;
350	}	263	}
351	if (!tmp)	264
352	tmp = give_skill_by_name (op, skill->skill);	265	skill = give_skill_by_name (op, skill->skill);
353	skill = tmp;	266	found: ;
354	}	267	}
355		268
356	// skill, by_whom, on_which_object, which direction, skill_argument	269	// skill, by_whom, on_which_object, which direction, skill_argument
357	if (INVOKE_OBJECT (USE_SKILL, skill, ARG_OBJECT (op), ARG_OBJECT (part), ARG_INT (dir), ARG_STRING (string)))	270	if (INVOKE_OBJECT (USE_SKILL, skill, ARG_OBJECT (op), ARG_OBJECT (part), ARG_INT (dir), ARG_STRING (string)))
358	return 0;	271	return 0;
359		272
360	switch (skill->subtype)	273	switch (skill->subtype)
361	{	274	{
362	case SK_LEVITATION:	275	case SK_LEVITATION:
363	/* Not 100% sure if this will work with new movement code -	276	/* Not 100% sure if this will work with new movement code -
364	* the levitation skill has move_type for flying, so when	277	* the levitation skill has move_type for flying, so when
365	* equipped, that should transfer to player, when not,	278	* equipped, that should transfer to player, when not,
366	* shouldn't.	279	* shouldn't.
367	*/	280	*/
368	if (QUERY_FLAG (skill, FLAG_APPLIED))	281	if (skill->flag [FLAG_APPLIED])
369	{	282	{
370	CLEAR_FLAG (skill, FLAG_APPLIED);	283	skill->clr_flag (FLAG_APPLIED);
371	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");	284	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");
372	}	285	}
373	else	286	else
374	{	287	{
375	SET_FLAG (skill, FLAG_APPLIED);	288	skill->set_flag (FLAG_APPLIED);
376	new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!.");	289	new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!");
377	}	290	}
378	fix_player (op);	291
		292	op->update_stats ();
379	success = 1;	293	success = 1;
380	break;	294	break;
381		295
382	case SK_STEALING:	296	case SK_STEALING:
383	exp = success = steal (op, dir, skill);	297	exp = success = steal (op, dir, skill);
384	break;	298	break;
385		299
386	case SK_LOCKPICKING:	300	case SK_LOCKPICKING:
387	exp = success = pick_lock (op, dir, skill);	301	exp = success = pick_lock (op, dir, skill);
388	break;	302	break;
389		303
390	case SK_HIDING:	304	case SK_HIDING:
391	exp = success = hide (op, skill);	305	exp = success = hide (op, skill);
392	break;	306	break;
393		307
394	case SK_JUMPING:	308	case SK_JUMPING:
395	success = jump (op, dir, skill);	309	exp = success = jump (op, dir, skill);
396	break;	310	break;
397		311
398	case SK_INSCRIPTION:	312	case SK_INSCRIPTION:
399	exp = success = write_on_item (op, string, skill);	313	exp = success = write_on_item (op, string, skill);
400	break;	314	break;
401		315
402	case SK_MEDITATION:	316	case SK_MEDITATION:
403	meditate (op, skill);	317	meditate (op, skill);
404	success = 1;	318	success = 1;
405	break;	319	break;
406	/* note that the following 'attack' skills gain exp through hit_player() */	320	/* note that the following 'attack' skills gain exp through hit_player() */
407		321
408	case SK_KARATE:	322	case SK_KARATE:
409	(void) attack_hth (op, dir, "karate-chopped", skill);	323	attack_hth (op, dir, "karate-chopped", skill);
410	break;	324	break;
411		325
412	case SK_PUNCHING:	326	case SK_PUNCHING:
413	(void) attack_hth (op, dir, "punched", skill);	327	attack_hth (op, dir, "punched", skill);
414	break;	328	break;
415		329
416	case SK_FLAME_TOUCH:	330	case SK_FLAME_TOUCH:
417	(void) attack_hth (op, dir, "flamed", skill);	331	attack_hth (op, dir, "flamed", skill);
418	break;	332	break;
419		333
420	case SK_SPARK_TOUCH:	334	case SK_SPARK_TOUCH:
421	(void) attack_hth (op, dir, "zapped", skill);	335	attack_hth (op, dir, "zapped", skill);
422	break;	336	break;
423		337
424	case SK_SHIVER:	338	case SK_SHIVER:
425	(void) attack_hth (op, dir, "froze", skill);	339	attack_hth (op, dir, "froze", skill);
426	break;	340	break;
427		341
428	case SK_ACID_SPLASH:	342	case SK_ACID_SPLASH:
429	(void) attack_hth (op, dir, "dissolved", skill);	343	attack_hth (op, dir, "dissolved", skill);
430	break;	344	break;
431		345
432	case SK_POISON_NAIL:	346	case SK_POISON_NAIL:
433	(void) attack_hth (op, dir, "injected poison into", skill);	347	attack_hth (op, dir, "injected poison into", skill);
434	break;	348	break;
435		349
436	case SK_CLAWING:	350	case SK_CLAWING:
437	(void) attack_hth (op, dir, "clawed", skill);	351	attack_hth (op, dir, "clawed", skill);
438	break;	352	break;
439		353
440	case SK_ONE_HANDED_WEAPON:	354	case SK_ONE_HANDED_WEAPON:
441	case SK_TWO_HANDED_WEAPON:	355	case SK_TWO_HANDED_WEAPON:
442	(void) attack_melee_weapon (op, dir, NULL, skill);	356	attack_melee_weapon (op, dir, NULL, skill);
443	break;	357	break;
444		358
445	case SK_FIND_TRAPS:	359	case SK_FIND_TRAPS:
446	exp = success = find_traps (op, skill);	360	exp = success = find_traps (op, skill);
447	break;	361	break;
448		362
449	case SK_SINGING:	363	case SK_SINGING:
450	exp = success = singing (op, dir, skill);	364	exp = success = singing (op, dir, skill);
451	break;	365	break;
452		366
453	case SK_ORATORY:	367	case SK_ORATORY:
454	exp = success = use_oratory (op, dir, skill);	368	exp = success = use_oratory (op, dir, skill);
455	break;	369	break;
456		370
457	case SK_SMITHERY:	371	case SK_SMITHERY:
458	case SK_BOWYER:	372	case SK_BOWYER:
459	case SK_JEWELER:	373	case SK_JEWELER:
460	case SK_ALCHEMY:	374	case SK_ALCHEMY:
461	case SK_THAUMATURGY:	375	case SK_THAUMATURGY:
462	case SK_LITERACY:	376	case SK_LITERACY:
463	case SK_WOODSMAN:	377	case SK_WOODSMAN:
464	/* first, we try to find a cauldron, and do the alchemy thing.	378	/* first, we try to find a cauldron, and do the alchemy thing.
465	* failing that, we go and identify stuff.	379	* failing that, we go and identify stuff.
466	*/	380	*/
		381	{
		382	bool found_cauldron = false;
		383
467	for (tmp = get_map_ob (op->map, op->x, op->y); tmp != NULL; tmp = next)	384	for (object next, tmp = GET_MAP_OB (op->map, op->x, op->y); tmp; tmp = next)
468	{	385	{
469	next = tmp->above;	386	next = tmp->above;
		387
470	if (QUERY_FLAG (tmp, FLAG_IS_CAULDRON))	388	if (tmp->flag [FLAG_IS_CAULDRON])
471	{	389	{
		390	found_cauldron = true;
		391
		392	if (tmp->skill != skill->skill)
		393	{
		394	op->failmsgf ("You can't use the %s with the %s skill!",
		395	query_name (tmp),
		396	query_name (skill));
		397	break;
		398	}
		399
472	attempt_do_alchemy (op, tmp);	400	attempt_do_alchemy (op, tmp, skill);
		401
473	if (QUERY_FLAG (tmp, FLAG_APPLIED))	402	if (tmp->flag [FLAG_APPLIED])
474	esrv_send_inventory (op, tmp);	403	esrv_send_inventory (op, tmp);
475	did_alc = 1;
476	}	404	}
477	}	405	}
478	if (did_alc == 0)	406
		407	if (!found_cauldron)
479	exp = success = skill_ident (op, skill);	408	exp = success = skill_ident (op, skill);
		409	}
480	break;	410	break;
481		411
482	case SK_DET_MAGIC:	412	case SK_DET_MAGIC:
483	case SK_DET_CURSE:	413	case SK_DET_CURSE:
484	exp = success = skill_ident (op, skill);	414	exp = success = skill_ident (op, skill);
485	break;	415	break;
486		416
487	case SK_DISARM_TRAPS:	417	case SK_DISARM_TRAPS:
488	exp = success = remove_trap (op, dir, skill);	418	exp = success = remove_trap (op, dir, skill);
489	break;	419	break;
490		420
491	case SK_THROWING:	421	case SK_THROWING:
492	success = skill_throw (op, part, dir, string, skill);	422	success = skill_throw (op, part, dir, string, skill);
493	break;	423	break;
494		424
495	case SK_SET_TRAP:	425	case SK_SET_TRAP:
496	new_draw_info (NDI_UNIQUE, 0, op, "This skill is not currently implemented.");	426	new_draw_info (NDI_UNIQUE, 0, op, "This skill is not currently implemented.");
497	break;	427	break;
498		428
499	case SK_USE_MAGIC_ITEM:	429	case SK_USE_MAGIC_ITEM:
500	case SK_MISSILE_WEAPON:	430	case SK_MISSILE_WEAPON:
501	new_draw_info (NDI_UNIQUE, 0, op, "There is no special attack for this skill.");	431	new_draw_info (NDI_UNIQUE, 0, op, "There is no special attack for this skill.");
502	break;	432	break;
503		433
504	case SK_PRAYING:	434	case SK_PRAYING:
505	success = pray (op, skill);	435	success = pray (op, skill);
506	break;	436	break;
507		437
508	case SK_BARGAINING:	438	case SK_BARGAINING:
509	success = describe_shop (op);	439	success = describe_shop (op);
510	break;	440	break;
511		441
512	case SK_SORCERY:	442	case SK_SORCERY:
513	case SK_EVOCATION:	443	case SK_EVOCATION:
514	case SK_PYROMANCY:	444	case SK_PYROMANCY:
515	case SK_SUMMONING:	445	case SK_SUMMONING:
516	case SK_CLIMBING:	446	case SK_CLIMBING:
517	new_draw_info (NDI_UNIQUE, 0, op, "This skill is already in effect.");	447	new_draw_info (NDI_UNIQUE, 0, op, "This skill is already in effect.");
518	break;	448	break;
519		449
		450	case SK_MINING:
		451	success = skill_mining (op, part, skill, dir, string);
		452	break;
		453
520	default:	454	default:
521	LOG (llevDebug, "%s attempted to use unknown skill: %d\n", query_name (op), op->chosen_skill->stats.sp);	455	LOG (llevDebug, "%s attempted to use unknown skill: %d\n", query_name (op), op->chosen_skill->stats.sp);
522	break;	456	break;
523	}	457	}
524		458
525	/* For players we now update the speed_left from using the skill.	459	/* For players we now update the speed_left from using the skill.
526	* Monsters have no skill use time because of the random nature in	460	* Monsters have no skill use time because of the random nature in
527	* which use_monster_skill is called already simulates this.	461	* which use_monster_skill is called already simulates this.
528	* If certain skills should take more/less time, that should be	462	* If certain skills should take more/less time, that should be
529	* in the code for the skill itself.	463	* in the code for the skill itself.
530	*/	464	*/
531
532	if (op->type == PLAYER)	465	if (op->type == PLAYER)
533	op->speed_left -= 1.0;	466	op->speed_left -= 1.f;
534		467
535	/* this is a good place to add experience for successfull use of skills.	468	/* this is a good place to add experience for successfull use of skills.
536	* Note that add_exp() will figure out player/monster experience	469	* Note that add_exp() will figure out player/monster experience
537	* gain problems.	470	* gain problems.
538	*/	471	*/
…		…
566	* op is the object that was 'defeated'.	499	* op is the object that was 'defeated'.
567	* skill is the skill used. If no skill is used, it should just	500	* skill is the skill used. If no skill is used, it should just
568	* point back to who.	501	* point back to who.
569	*	502	*
570	*/	503	*/
571
572	int	504	int
573	calc_skill_exp (object who, object op, object *skill)	505	calc_skill_exp (object who, object op, object *skill)
574	{	506	{
575	int op_exp = 0, op_lvl = 0;	507	int op_exp = 0, op_lvl = 0;
576	float base, value, lvl_mult = 0.0;	508	float base, value, lvl_mult = 0.0;
…		…
583	* non-living magic obj, runes and everything else.	515	* non-living magic obj, runes and everything else.
584	*	516	*
585	* If an object is not alive and magical we set the base exp higher to	517	* If an object is not alive and magical we set the base exp higher to
586	* help out exp awards for skill_ident skills. Also, if	518	* help out exp awards for skill_ident skills. Also, if
587	* an item is type RUNE, we give out exp based on stats.Cha	519	* an item is type RUNE, we give out exp based on stats.Cha
588	* and level (this was the old system) -b.t.	520	* and level (this was the old system) -b.t.
589	*/	521	*/
590
591	if (!op)	522	if (!op)
592	{ /* no item/creature */	523	{ /* no item/creature */
593	op_lvl = who->map->difficulty < 1 ? 1 : who->map->difficulty;	524	op_lvl = max (1, who->map->difficulty);
594	op_exp = 0;	525	op_exp = 0;
595	}	526	}
596	else if (op->type == RUNE \|\| op->type == TRAP)	527	else if (op->type == RUNE \|\| op->type == TRAP)
597	{ /* all traps. If stats.Cha > 1 we use that	528	{ /* all traps. If stats.Cha > 1 we use that
598	* for the amount of experience */	529	* for the amount of experience */
…		…
601	}	532	}
602	else	533	else
603	{ /* all other items/living creatures */	534	{ /* all other items/living creatures */
604	op_exp = op->stats.exp;	535	op_exp = op->stats.exp;
605	op_lvl = op->level;	536	op_lvl = op->level;
606	if (!QUERY_FLAG (op, FLAG_ALIVE))	537	if (!op->flag [FLAG_ALIVE])
607	{ /* for ident/make items */	538	op_lvl += 5 * abs (op->magic); /* for ident/make items */
608	op_lvl += 5 * abs (op->magic);
609	}
610	}	539	}
611		540
612	if (op_lvl < 1)	541	if (op_lvl < 1)
613	op_lvl = 1;	542	op_lvl = 1;
614		543
…		…
622	/* if skill really is a skill, then we can look at the skill archetype for	551	/* if skill really is a skill, then we can look at the skill archetype for
623	* bse reward value (exp) and level multiplier factor.	552	* bse reward value (exp) and level multiplier factor.
624	*/	553	*/
625	if (skill->type == SKILL)	554	if (skill->type == SKILL)
626	{	555	{
627	base += skill->arch->clone.stats.exp;	556	base += skill->arch->stats.exp;
628	if (settings.simple_exp)	557	if (settings.simple_exp)
629	{	558	{
630	if (skill->arch->clone.level)	559	if (skill->arch->level)
631	lvl_mult = (float) skill->arch->clone.level / 100.0;	560	lvl_mult = (float) skill->arch->level / 100.0;
632	else	561	else
633	lvl_mult = 1.0; /* no adjustment */	562	lvl_mult = 1.0; /* no adjustment */
634	}	563	}
635	else	564	else
636	{	565	{
637	if (skill->level)	566	if (skill->level)
638	lvl_mult = ((float) skill->arch->clone.level * (float) op_lvl) / ((float) skill->level * 100.0);	567	lvl_mult = ((float) skill->arch->level * (float) op_lvl) / ((float) skill->level * 100.0);
639	else	568	else
640	lvl_mult = 1.0;	569	lvl_mult = 1.0;
641	}	570	}
642	}	571	}
643	else	572	else
644	{	573	{
645	/* Don't divide by zero here! */	574	/* Don't divide by zero here! */
646	lvl_mult = (float) op_lvl / (float) (skill->level ? skill->level : 1);	575	lvl_mult = (float) op_lvl / (float) max (1, skill->level);
647	}	576	}
648	}	577	}
649		578
650	/* assemble the exp total, and return value */	579	/* assemble the exp total, and return value */
651		580
…		…
660	}	589	}
661		590
662	/* Learn skill. This inserts the requested skill in the player's	591	/* Learn skill. This inserts the requested skill in the player's
663	* inventory. The skill field of the scroll should have the	592	* inventory. The skill field of the scroll should have the
664	* exact name of the requested skill.	593	* exact name of the requested skill.
665	* This one actually teaches the player the skill as something	594	* This one actually teaches the player the skill as something
666	* they can equip.	595	* they can equip.
667	* Return 0 if the player knows the skill, 1 if the	596	* Return 0 if the player knows the skill, 1 if the
668	* player learns the skill, 2 otherwise.	597	* player learns the skill, 2 otherwise.
669	*/	598	*/
670
671	int	599	int
672	learn_skill (object pl, object scroll)	600	learn_skill (object pl, object scroll)
673	{	601	{
674	object *tmp;
675
676	if (!scroll->skill)	602	if (!scroll->skill)
677	{	603	{
678	LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name);	604	LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name);
679	return 2;	605	return 2;
680	}	606	}
681		607
682	/* can't use find_skill_by_name because we want skills the player knows	608	object *tmp = find_skill (pl, scroll->skill);
683	* but can't use natively.
684	*/
685
686	for (tmp = pl->inv; tmp != NULL; tmp = tmp->below)
687	if (tmp->type == SKILL && !strncasecmp (scroll->skill, tmp->skill, strlen (scroll->skill)))
688	break;
689		609
690	/* player already knows it */	610	/* player already knows it */
691	if (tmp && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL))	611	if (tmp && tmp->flag [FLAG_CAN_USE_SKILL])
692	return 0;	612	return 0;
693
694
695		613
696	/* now a random change to learn, based on player Int.	614	/* now a random change to learn, based on player Int.
697	* give bonus based on level - otherwise stupid characters	615	* give bonus based on level - otherwise stupid characters
698	* might never be able to learn anything.	616	* might never be able to learn anything.
699	*/	617	*/
…		…
707	{	625	{
708	LOG (llevError, "skill scroll %s does not have valid skill name (%s).\n", &scroll->name, &scroll->skill);	626	LOG (llevError, "skill scroll %s does not have valid skill name (%s).\n", &scroll->name, &scroll->skill);
709	return 2;	627	return 2;
710	}	628	}
711		629
712	SET_FLAG (tmp, FLAG_CAN_USE_SKILL);	630	tmp->set_flag (FLAG_CAN_USE_SKILL);
713	link_player_skills (pl);	631
714	return 1;	632	return 1;
715	}	633	}
716		634
717	/* Gives a percentage clipped to 0% -> 100% of a/b. */	635	/* Gives a percentage clipped to 0% -> 100% of a/b. */
718
719	/* Probably belongs in some global utils-type file? */	636	/* Probably belongs in some global utils-type file? */
720	static int	637	static int
721	clipped_percent (sint64 a, sint64 b)	638	clipped_percent (sint64 a, sint64 b)
722	{	639	{
723	int rv;	640	int rv;
…		…
731	return 0;	648	return 0;
732	else if (rv > 100)	649	else if (rv > 100)
733	return 100;	650	return 100;
734		651
735	return rv;	652	return rv;
		653	}
		654
		655	static int
		656	cmp_skillp (const void sk1, const void sk2)
		657	{
		658	return strcmp (&(((const object *) sk1)->name),
		659	&(((const object *) sk2)->name));
736	}	660	}
737		661
738	/* show_skills() - Meant to allow players to examine	662	/* show_skills() - Meant to allow players to examine
739	* their current skill list.	663	* their current skill list.
740	* This shows the amount of exp they have in the skills.	664	* This shows the amount of exp they have in the skills.
741	* we also include some other non skill related info (god,	665	* we also include some other non skill related info (god,
742	* max weapon improvments, item power).	666	* max weapon improvments, item power).
743	* Note this function is a bit more complicated becauase we	667	* Note this function is a bit more complicated because we
744	* we want ot sort the skills before printing them. If we	668	* we want to sort the skills before printing them. If we
745	* just dumped this as we found it, this would be a bit	669	* just dumped this as we found it, this would be a bit
746	* simpler.	670	* simpler.
747	*/	671	*/
748
749	void	672	void
750	show_skills (object op, const char search)	673	show_skills (object pl, const char search)
751	{	674	{
752	object *tmp = NULL;
753	char buf[MAX_BUF];
754	const char *cp;	675	const char *cp;
755	int i, num_skills_found = 0;	676	int i, num_skills_found = 0;
756	static const char *const periods = "........................................";	677	object *skills[CS_NUM_SKILLS];
		678	object *op = pl->contr->ob;
757		679
758	/* Need to have a pointer and use strdup for qsort to work properly */	680	/* find the skills */
759	char skills[NUM_SKILLS][MAX_BUF];
760
761
762	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	681	for (object *tmp = op->inv; tmp; tmp = tmp->below)
763	{	682	{
764	if (tmp->type == SKILL)	683	if (tmp->type == SKILL)
765	{	684	{
766	if (search && strstr (tmp->name, search) == NULL)	685	if (search && !tmp->name.contains (search))
767	continue;	686	continue;
768	/* Basically want to fill this out to 40 spaces with periods */
769	sprintf (buf, "%s%s", &tmp->name, periods);
770	buf[40] = 0;
771		687
772	if (settings.permanent_exp_ratio)	688	skills[num_skills_found++] = tmp;
773	{	689
774	sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%lld/%lld/%d%%)",
775	buf, tmp->level,
776	(long long) tmp->stats.exp,
777	(long long) level_exp (tmp->level + 1, op->expmul), clipped_percent (tmp->perm_exp, tmp->stats.exp));
778	}
779	else
780	{
781	sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%lld/%lld)",
782	buf, tmp->level, (long long) tmp->stats.exp, (long long) level_exp (tmp->level + 1, op->expmul));
783	}
784	/* I don't know why some characters get a bunch of skills, but	690	/* I don't know why some characters get a bunch of skills, but
785	* it sometimes happens (maybe a leftover from bugier earlier code	691	* it sometimes happens (maybe a leftover from bugier earlier code
786	* and those character are still about). In any case, lets handle	692	* and those character are still about). In any case, lets handle
787	* it so it doesn't crash the server - otherwise, one character may	693	* it so it doesn't crash the server - otherwise, one character may
788	* crash the server numerous times.	694	* crash the server numerous times.
789	*/	695	*/
790	if (num_skills_found >= NUM_SKILLS)	696	if (num_skills_found >= CS_NUM_SKILLS)
791	{	697	{
792	new_draw_info (NDI_RED, 0, op, "Your character has too many skills.");	698	new_draw_info (NDI_RED \| NDI_REPLY, 0, op, "Your character has too many skills.");
793	new_draw_info (NDI_RED, 0, op, "Something isn't right - contact the server admin");	699	new_draw_info (NDI_RED \| NDI_REPLY, 0, op, "Something isn't right - contact the server admin");
794	break;	700	break;
795	}	701	}
796	}	702	}
797	}	703	}
798		704
799	clear_win_info (op);	705	dynbuf_text &msg = msg_dynbuf; msg.clear ();
800	new_draw_info (NDI_UNIQUE, 0, op, "Player skills:");	706
		707	msg << "T<Player skills:>\n\n";
801	if (num_skills_found > 1)	708	if (num_skills_found > 1)
802	qsort (skills, num_skills_found, MAX_BUF, (int ()(const void , const void *)) strcmp);	709	qsort (skills, num_skills_found, sizeof (skills [0]), cmp_skillp);
803		710
		711	char buf[31]; /* +1 for '\0' */
		712	const char *const periods = ".............................."; // 30
		713
804	for (i = 0; i < num_skills_found; i++)	714	for (i = 0; i < num_skills_found; i++) {
805	{	715	object *tmp = skills[i];
806	new_draw_info (NDI_UNIQUE, 0, op, skills[i]);	716
		717	/* Basically want to fill this out to 30 spaces with periods */
		718	snprintf (buf, sizeof (buf), "%s%s", &tmp->name, periods);
		719
		720	msg << " C<";
		721
		722	if (settings.permanent_exp_ratio)
		723	msg.printf ("%slvl:%3d (xp:%" PRId64 "/%" PRId64 "/%d%%)",
		724	buf, tmp->level, tmp->stats.exp, level_exp (tmp->level + 1, op->expmul),
		725	clipped_percent (tmp->perm_exp, tmp->stats.exp));
		726	else
		727	msg.printf ("%slvl:%3d (xp:%" PRId64 "/%" PRId64 ")",
		728	buf, tmp->level, tmp->stats.exp, level_exp (tmp->level + 1, op->expmul));
		729
		730	msg << ">\n";
807	}	731	}
808		732
809	new_draw_info_format (NDI_UNIQUE, 0, op, "You can handle %d weapon improvements.", op->level / 5 + 5);	733	msg << "\nYou can handle " << op->level / 5 + 5 << " weapon improvements.\r";
810		734
811	cp = determine_god (op);	735	cp = determine_god (op);
812	new_draw_info_format (NDI_UNIQUE, 0, op, "You worship %s.", cp ? cp : "no god at current time");	736	msg << "You worship " << (cp ? cp : "no god at current time") << ".\r";
813		737
814	new_draw_info_format (NDI_UNIQUE, 0, op, "Your equipped item power is %d out of %d\n",	738	msg << "Your equipped item power is " << (int)op->contr->item_power
815	op->contr->item_power, (int) (op->level * settings.item_power_factor));	739	<< " out of " << int (op->level * settings.item_power_factor)
816	}	740	<< ".\n";
817		741
		742	pl->contr->infobox (MSG_CHANNEL ("skills"), msg);
		743	}
		744
818	/* use_skill() - similar to invoke command, it executes the skill in the	745	/* use_skill() - similar to invoke command, it executes the skill in the
819	* direction that the user is facing. Returns false if we are unable to	746	* direction that the user is facing. Returns false if we are unable to
820	* change to the requested skill, or were unable to use the skill properly.	747	* change to the requested skill, or were unable to use the skill properly.
821	* This is tricky because skills can have spaces. We basically roll	748	* This is tricky because skills can have spaces. We basically roll
822	* our own find_skill_by_name so we can try to do better string matching.	749	* our own find_skill_by_name so we can try to do better string matching.
823	*/	750	*/
824
825	int	751	int
826	use_skill (object op, const char string)	752	use_skill (object op, const char string)
827	{	753	{
828	object *skop;	754	object *skop;
829	size_t len;	755	size_t len;
830		756
831	if (!string)	757	if (!string)
832	return 0;	758	return 0;
833		759
834	for (skop = op->inv; skop != NULL; skop = skop->below)	760	for (skop = op->inv; skop; skop = skop->below)
835	{	761	if ((skop->type == SKILL \|\| skop->type == SKILL_TOOL)
836	if (skop->type == SKILL && QUERY_FLAG (skop, FLAG_CAN_USE_SKILL) &&
837	!strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))	762	&& !strncmp (string, skop->skill, min (strlen (string), strlen (skop->skill))))
		763	{
		764	skop = find_skill_by_name (op, skop->skill);
838	break;	765	break;
839	else if (skop->type == SKILL_TOOL && !strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))
840	break;
841	}	766	}
		767
842	if (!skop)	768	if (!skop)
843	{	769	{
844	new_draw_info_format (NDI_UNIQUE, 0, op, "Unable to find skill %s", string);	770	op->failmsgf ("Unable to find skill %s.", string);
		771	return 0;
		772	}
		773
		774	if (!(skill_flags [skop->subtype] & SF_USE))
		775	{
		776	op->failmsgf (
		777	"You feel as if you wanted to do something funny, but you can't remember what. "
		778	"H<The %s skill cannot be C<use_skill>'ed - maybe you need to C<ready_skill> it, "
		779	"use it with some item, or it's always active.>",
		780	&skop->skill
		781	);
845	return 0;	782	return 0;
846	}	783	}
847		784
848	len = strlen (skop->skill);	785	len = strlen (skop->skill);
849		786
…		…
851	* options given to the skill. Its pretty simple - if there	788	* options given to the skill. Its pretty simple - if there
852	* are extra parameters (as deteremined by string length), we	789	* are extra parameters (as deteremined by string length), we
853	* want to skip over any leading spaces.	790	* want to skip over any leading spaces.
854	*/	791	*/
855	if (len >= strlen (string))	792	if (len >= strlen (string))
856	{
857	string = NULL;	793	string = NULL;
858	}
859	else	794	else
860	{	795	{
861	string += len;	796	string += len;
862	while (*string == 0x20)	797	while (*string == 0x20)
863	string++;	798	string++;
		799
864	if (strlen (string) == 0)	800	if (strlen (string) == 0)
865	string = NULL;	801	string = NULL;
866	}	802	}
867		803
868	#ifdef SKILL_UTIL_DEBUG	804	#ifdef SKILL_UTIL_DEBUG
869	LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none");	805	LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none");
870	#endif	806	#endif
871		807
872	/* Change to the new skill, then execute it. */
873	if (do_skill (op, op, skop, op->facing, string))	808	if (do_skill (op, op, skop, op->facing, string))
874	return 1;	809	return 1;
875		810
876	return 0;	811	return 0;
877	}	812	}
878		813
		814	static bool
		815	hth_skill_p (object *skill)
		816	{
		817	return (skill_flags [skill->subtype] & (SF_COMBAT \| SF_NEED_ITEM)) == SF_COMBAT;
		818	}
879		819
880
881	/* This finds the best unarmed skill the player has, and returns	820	/* This finds the first unarmed skill the player has, and returns it.
882	* it. Best can vary a little - we consider clawing to always
883	* be the best for dragons.
884	* This could be more intelligent, eg, look at the skill level
885	* of the skill and go from there (eg, a level 40 puncher is
886	* is probably better than level 1 karate). OTOH, if you
887	* don't bother to set up your skill properly, that is the players
888	* problem (although, it might be nice to have a preferred skill
889	* field the player can set.
890	* Unlike the old code, we don't give out any skills - it is
891	* possible you just don't have any ability to get into unarmed
892	* combat. If everyone race/class should have one, this should
893	* be handled in the starting treasurelists, not in the code.
894	*/	821	*/
895	static object *	822	static object *
896	find_best_player_hth_skill (object *op)	823	find_player_hth_skill (object *op)
897	{	824	{
898	object tmp, best_skill = NULL;
899	int dragon = is_dragon_pl (op), last_skill = sizeof (unarmed_skills), i;
900
901	for (tmp = op->inv; tmp; tmp = tmp->below)	825	for (object *tmp = op->inv; tmp; tmp = tmp->below)
902	{	826	if (tmp->type == SKILL && tmp->flag [FLAG_CAN_USE_SKILL] && hth_skill_p (tmp))
903	if (tmp->type == SKILL)
904	{
905	if (dragon && tmp->subtype == SK_CLAWING)
906	return tmp;	827	return tmp;
907		828
908	/* The order in the array is preferred order. So basically,	829	return 0;
909	* we just cut down the number to search - eg, if we find a skill
910	* early on in flame touch, then we only need to look into the unarmed_array
911	* to the entry before flame touch - don't care about the entries afterward,
912	* because they are infrerior skills.
913	* if we end up finding the best skill (i==0) might as well return
914	* right away - can't get any better than that.
915	*/
916	for (i = 0; i < last_skill; i++)
917	{
918	if (tmp->subtype == unarmed_skills[i] && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL))
919	{
920	best_skill = tmp;
921	last_skill = i;
922	if (i == 0)
923	return best_skill;
924	}
925	}
926	}
927	}
928	return best_skill;
929	}	830	}
930		831
931	/* do_skill_attack() - We have got an appropriate opponent from either	832	/* do_skill_attack() - We have got an appropriate opponent from either
932	* move_player_attack() or skill_attack(). In this part we get on with	833	* move_player_attack() or skill_attack(). In this part we get on with
933	* attacking, take care of messages from the attack and changes in invisible.	834	* attacking, take care of messages from the attack and changes in invisible.
…		…
935	* tmp is the targetted monster.	836	* tmp is the targetted monster.
936	* op is what is attacking	837	* op is what is attacking
937	* string is passed along to describe what messages to describe	838	* string is passed along to describe what messages to describe
938	* the damage.	839	* the damage.
939	*/	840	*/
940
941	static int	841	static int
942	do_skill_attack (object tmp, object op, const char string, object skill)	842	do_skill_attack (object tmp, object op, const char string, object skill)
943	{	843	{
944	int success;
945
946	if (INVOKE_OBJECT (SKILL_ATTACK, op, ARG_OBJECT (tmp), ARG_STRING (string), ARG_OBJECT (skill)))	844	if (INVOKE_OBJECT (SKILL_ATTACK, op, ARG_OBJECT (tmp), ARG_STRING (string), ARG_OBJECT (skill)))
947	return RESULT_INT (0);	845	return RESULT_INT (0);
948		846
949	/* For Players only: if there is no ready weapon, and no "attack" skill	847	/* For Players only: if there is no ready weapon, and no "attack" skill
950	* is readied either then try to find a skill for the player to use.	848	* is readied either then try to find a skill for the player to use.
951	* it is presumed that if skill is set, it is a valid attack skill (eg,	849	* it is presumed that if skill is set, it is a valid attack skill (eg,
952	* the caller should have set it appropriately). We still want to pass	850	* the caller should have set it appropriately). We still want to pass
953	* through that code if skill is set to change to the skill.	851	* through that code if skill is set to change to the skill.
954	*/	852	*/
955	if (op->type == PLAYER)	853	if (player *pl = op->contr)
956	{	854	{
957	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))	855	if (skill)
958	{	856	{
959	size_t i;
960
961	if (!skill)	857	if (!op->apply (skill))
		858	return 0;
		859	}
		860	else
		861	{
		862	if (!pl->combat_ob)
962	{	863	{
963	/* See if the players chosen skill is a combat skill, and use	864	if (op->flag [FLAG_READY_WEAPON])
964	* it if appropriate.
965	*/
966	if (op->chosen_skill)
967	{	865	{
968	for (i = 0; i < sizeof (unarmed_skills); i++)	866	for (tmp = op->inv; tmp; tmp = tmp->below)
969	if (op->chosen_skill->subtype == unarmed_skills[i])	867	if (tmp->type == WEAPON && tmp->flag [FLAG_APPLIED])
970	{
971	skill = op->chosen_skill;
972	break;	868	break;
973	}	869
		870	if (!tmp)
		871	LOG (llevError, "Could not find applied weapon on %s\n", &op->name);
		872
		873	pl->combat_ob = tmp;
974	}	874	}
975	/* If we didn't find a skill above, look harder for a good skill */	875
976	if (!skill)	876	if (!pl->combat_ob)
977	{	877	{
978	skill = find_best_player_hth_skill (op);	878	/* See if the players chosen skill is a combat skill, and use
979		879	* it if appropriate.
980	if (!skill)	880	*/
		881	if (op->chosen_skill && hth_skill_p (op->chosen_skill))
		882	skill = op->chosen_skill;
		883	else
981	{	884	{
		885	skill = find_player_hth_skill (op);
		886
		887	if (!skill)
982	new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!");	888	new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!");
983	return 0;
984	}	889	}
		890
		891	op->apply (skill);
985	}	892	}
986	}	893
987	if (skill != op->chosen_skill)	894	if (!pl->combat_ob)
988	{	895	{
989	/* now try to ready the new skill */	896	LOG (llevError, "Could not find anything to attack on %s\n", &op->name);
990	if (!change_skill (op, skill, 0))
991	{ /* oh oh, trouble! */
992	new_draw_info_format (NDI_UNIQUE, 0, tmp, "Couldn't change to skill %s", &skill->name);
993	return 0;	897	return 0;
994	}	898	}
995	}	899	}
996	}	900
997	else	901	if (!op->apply (pl->combat_ob))
998	{	902	return 0;
999	/* Seen some crashes below where current_weapon is not set,	903
1000	* even though the flag says it is. So if current weapon isn't set,	904	if (!op->chosen_skill)
1001	* do some work in trying to find the object to use.
1002	*/
1003	if (!op->current_weapon)
1004	{	905	{
1005	object *tmp;	906	LOG (llevError, "do_skill_attack: weapon has no skill (%s)", pl->combat_ob->debug_desc ());
1006		907	new_draw_info (NDI_RED \| NDI_REPLY, 0, op, "You hit a bug in the server, please contact an admin!");
1007	LOG (llevError, "Player %s does not have current weapon set but flag_ready_weapon is set\n", &op->name);
1008	for (tmp = op->inv; tmp; tmp = tmp->below)
1009	if (tmp->type == WEAPON && QUERY_FLAG (tmp, FLAG_APPLIED))
1010	break;
1011
1012	if (!tmp)
1013	{
1014	LOG (llevError, "Could not find applied weapon on %s\n", &op->name);
1015	op->current_weapon = NULL;
1016	return 0;	908	return 0;
1017	}
1018	else
1019	{
1020	op->current_weapon = tmp;
1021	}
1022	}
1023
1024	/* Has ready weapon - make sure chosen_skill is set up properly */
1025	if (!op->chosen_skill \|\| op->current_weapon->skill != op->chosen_skill->skill)
1026	{
1027	change_skill (op, find_skill_by_name (op, op->current_weapon->skill), 1);
1028	}	909	}
1029	}	910	}
1030	}
1031		911
1032	/* lose invisiblity/hiding status for running attacks */	912	/* lose invisiblity/hiding status for running attacks */
1033		913	if (pl->tmp_invis)
1034	if (op->type == PLAYER && op->contr->tmp_invis)	914	{
1035	{
1036	op->contr->tmp_invis = 0;	915	pl->tmp_invis = 0;
1037	op->invisible = 0;	916	op->invisible = 0;
1038	op->hide = 0;	917	op->flag [FLAG_HIDDEN] = 0;
1039	update_object (op, UP_OBJ_FACE);	918	update_object (op, UP_OBJ_CHANGE);
		919	}
1040	}	920	}
1041		921
1042	success = attack_ob (tmp, op);	922	int success = attack_ob (tmp, op);
1043		923
1044	/* print appropriate messages to the player */	924	/* print appropriate messages to the player */
1045		925
1046	if (success && string != NULL && tmp && !QUERY_FLAG (tmp, FLAG_FREED))	926	if (success && string && tmp && !tmp->flag [FLAG_FREED])
1047	{	927	{
1048	if (op->type == PLAYER)	928	if (op->type == PLAYER)
1049	new_draw_info_format (NDI_UNIQUE, 0, op, "You %s %s!", string, query_name (tmp));	929	new_draw_info_format (NDI_UNIQUE, 0, op, "You %s %s!", string, query_name (tmp));
1050	else if (tmp->type == PLAYER)	930	else if (tmp->type == PLAYER)
1051	new_draw_info_format (NDI_UNIQUE, 0, tmp, "%s %s you!", query_name (op), string);	931	new_draw_info_format (NDI_UNIQUE, 0, tmp, "%s %s you!", query_name (op), string);
1052	}	932	}
		933
1053	return success;	934	return success;
1054	}	935	}
1055
1056		936
1057	/* skill_attack() - Core routine for use when we attack using a skills	937	/* skill_attack() - Core routine for use when we attack using a skills
1058	* system. In essence, this code handles	938	* system. In essence, this code handles
1059	* all skill-based attacks, ie hth, missile and melee weapons should be	939	* all skill-based attacks, i.e. hth, missile and melee weapons should be
1060	* treated here. If an opponent is already supplied by move_player(),	940	* treated here. If an opponent is already supplied by move_player(),
1061	* we move right onto do_skill_attack(), otherwise we find if an	941	* we move right onto do_skill_attack(), otherwise we find if an
1062	* appropriate opponent exists.	942	* appropriate opponent exists.
1063	*	943	*
1064	* This is called by move_player() and attack_hth()	944	* This is called by move_player() and attack_hth()
1065	*	945	*
1066	* Initial implementation by -bt thomas@astro.psu.edu	946	* Initial implementation by -bt thomas@astro.psu.edu
1067	*/	947	*/
1068
1069	int	948	int
1070	skill_attack (object tmp, object pl, int dir, const char string, object skill)	949	skill_attack (object tmp, object pl, int dir, const char string, object skill)
1071	{	950	{
1072	sint16 tx, ty;	951	sint16 tx, ty;
1073	mapstruct *m;	952	maptile *m;
1074	int mflags;	953	int mflags;
1075		954
1076	if (!dir)	955	if (!dir)
1077	dir = pl->facing;	956	dir = pl->facing;
1078	tx = freearr_x[dir];	957
1079	ty = freearr_y[dir];	958	tx = DIRX (dir);
		959	ty = DIRY (dir);
1080		960
1081	/* If we don't yet have an opponent, find if one exists, and attack.	961	/* If we don't yet have an opponent, find if one exists, and attack.
1082	* Legal opponents are the same as outlined in move_player_attack()	962	* Legal opponents are the same as outlined in move_player_attack()
1083	*/	963	*/
1084		964	if (!tmp)
1085	if (tmp == NULL)
1086	{	965	{
1087	m = pl->map;	966	m = pl->map;
1088	tx = pl->x + freearr_x[dir];	967	tx = pl->x + DIRX (dir);
1089	ty = pl->y + freearr_y[dir];	968	ty = pl->y + DIRY (dir);
1090		969
1091	mflags = get_map_flags (m, &m, tx, ty, &tx, &ty);	970	mflags = get_map_flags (m, &m, tx, ty, &tx, &ty);
1092	if (mflags & P_OUT_OF_MAP)	971	if (mflags & P_OUT_OF_MAP)
1093	return 0;	972	return 0;
1094		973
1095	/* space must be blocked for there to be anything interesting to do */	974	/* space must be blocked for there to be anything interesting to do */
1096	if (!OB_TYPE_MOVE_BLOCK (pl, GET_MAP_MOVE_BLOCK (m, tx, ty)))	975	if (!OB_TYPE_MOVE_BLOCK (pl, GET_MAP_MOVE_BLOCK (m, tx, ty)))
1097	return 0;	976	return 0;
1098		977
1099	for (tmp = get_map_ob (m, tx, ty); tmp; tmp = tmp->above)	978	for (tmp = GET_MAP_OB (m, tx, ty); tmp; tmp = tmp->above)
1100	if ((QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->stats.hp >= 0) \|\| QUERY_FLAG (tmp, FLAG_CAN_ROLL) \|\| tmp->type == LOCKED_DOOR)	979	if ((tmp->flag [FLAG_ALIVE] && tmp->stats.hp >= 0) \|\| tmp->flag [FLAG_CAN_ROLL] \|\| tmp->type == LOCKED_DOOR)
1101	{	980	{
1102	/* Don't attack party members */	981	/* Don't attack party members */
1103	if ((pl->type == PLAYER && tmp->type == PLAYER) && (pl->contr->party != NULL && pl->contr->party == tmp->contr->party))	982	if ((pl->type == PLAYER && tmp->type == PLAYER) && (pl->contr->party != NULL && pl->contr->party == tmp->contr->party))
1104	return 0;	983	return 0;
		984
1105	break;	985	break;
1106	}	986	}
1107	}	987	}
		988
1108	if (!tmp)	989	if (!tmp)
1109	{	990	{
1110	if (pl->type == PLAYER)	991	if (pl->type == PLAYER)
1111	new_draw_info (NDI_UNIQUE, 0, pl, "There is nothing to attack!");	992	new_draw_info (NDI_UNIQUE, 0, pl, "There is nothing to attack!");
		993
1112	return 0;	994	return 0;
1113	}	995	}
1114		996
1115	return do_skill_attack (tmp, pl, string, skill);	997	return do_skill_attack (tmp, pl, string, skill);
1116	}	998	}
1117
1118		999
1119	/* attack_hth() - this handles all hand-to-hand attacks -b.t. */	1000	/* attack_hth() - this handles all hand-to-hand attacks -b.t. */
1120		1001
1121	/* July 5, 1995 - I broke up attack_hth() into 2 parts. In the first	1002	/* July 5, 1995 - I broke up attack_hth() into 2 parts. In the first
1122	* (attack_hth) we check for weapon use, etc in the second (the new	1003	* (attack_hth) we check for weapon use, etc in the second (the new
1123	* function skill_attack() we actually attack.	1004	* function skill_attack() we actually attack.
1124	*/	1005	*/
1125
1126	static int	1006	static int
1127	attack_hth (object pl, int dir, const char string, object *skill)	1007	attack_hth (object pl, int dir, const char string, object *skill)
1128	{	1008	{
1129	object enemy = NULL, weapon;	1009	object enemy = NULL, weapon;
1130		1010
1131	if (QUERY_FLAG (pl, FLAG_READY_WEAPON))	1011	if (pl->flag [FLAG_READY_WEAPON])
1132	for (weapon = pl->inv; weapon; weapon = weapon->below)	1012	for (weapon = pl->inv; weapon; weapon = weapon->below)
1133	{	1013	{
1134	if (weapon->type == WEAPON && QUERY_FLAG (weapon, FLAG_APPLIED))	1014	if (weapon->type == WEAPON && weapon->flag [FLAG_APPLIED])
1135	{	1015	{
1136	CLEAR_FLAG (weapon, FLAG_APPLIED);	1016	weapon->clr_flag (FLAG_APPLIED);
1137	CLEAR_FLAG (pl, FLAG_READY_WEAPON);	1017	pl->clr_flag (FLAG_READY_WEAPON);
1138	fix_player (pl);	1018	pl->update_stats ();
1139	if (pl->type == PLAYER)	1019	if (pl->type == PLAYER)
1140	{	1020	{
1141	new_draw_info (NDI_UNIQUE, 0, pl, "You unwield your weapon in order to attack.");	1021	new_draw_info (NDI_UNIQUE, 0, pl, "You unwield your weapon in order to attack.");
1142	esrv_update_item (UPD_FLAGS, pl, weapon);	1022	esrv_update_item (UPD_FLAGS, pl, weapon);
1143	}	1023	}
		1024
1144	break;	1025	break;
1145	}	1026	}
1146	}	1027	}
		1028
1147	return skill_attack (enemy, pl, dir, string, skill);	1029	return skill_attack (enemy, pl, dir, string, skill);
1148	}	1030	}
1149
1150		1031
1151	/* attack_melee_weapon() - this handles melee weapon attacks -b.t.	1032	/* attack_melee_weapon() - this handles melee weapon attacks -b.t.
1152	* For now we are just checking to see if we have a ready weapon here.	1033	* For now we are just checking to see if we have a ready weapon here.
1153	* But there is a real neato possible feature of this scheme which	1034	* But there is a real neato possible feature of this scheme which
1154	* bears mentioning:	1035	* bears mentioning:
1155	* Since we are only calling this from do_skill() in the future	1036	* Since we are only calling this from do_skill() in the future
1156	* we may make this routine handle 'special' melee weapons attacks	1037	* we may make this routine handle 'special' melee weapons attacks
1157	* (like disarming manuever with sai) based on player SK_level and	1038	* (like disarming manuever with sai) based on player SK_level and
1158	* weapon type.	1039	* weapon type.
1159	*/	1040	*/
1160
1161	static int	1041	static int
1162	attack_melee_weapon (object op, int dir, const char string, object *skill)	1042	attack_melee_weapon (object op, int dir, const char string, object *skill)
1163	{	1043	{
1164		1044
1165	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))	1045	if (!op->flag [FLAG_READY_WEAPON])
1166	{	1046	{
1167	if (op->type == PLAYER)	1047	if (op->type == PLAYER)
1168	new_draw_info (NDI_UNIQUE, 0, op, "You have no ready weapon to attack with!");	1048	new_draw_info (NDI_UNIQUE, 0, op, "You have no ready weapon to attack with!");
		1049
1169	return 0;	1050	return 0;
1170	}	1051	}
		1052
1171	return skill_attack (NULL, op, dir, string, skill);	1053	return skill_attack (NULL, op, dir, string, skill);
1172
1173	}	1054	}
		1055

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Comparing deliantra/server/server/skill_util.C (file contents): Revision 1.9 by root, Sun Sep 10 15:59:57 2006 UTC vs. Revision 1.109 by root, Sat Nov 17 23:40:04 2018 UTC

Diff Legend

Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.9 by root, Sun Sep 10 15:59:57 2006 UTC vs.
Revision 1.109 by root, Sat Nov 17 23:40:04 2018 UTC