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

Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.13 by root, Sat Sep 16 22:24:13 2006 UTC vs.
Revision 1.110 by root, Sun Nov 18 00:37:11 2018 UTC

…		…
1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2017,2018 Marc Alexander Lehmann / the Deliantra team
		5	* Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copryight (C) 2002 Mark Wedel & Crossfire Development Team	6	* Copyright (©) 2002 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	7	* Copyright (©) 1992 Frank Tore Johansen
6		8	*
7	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
8	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
9	the Free Software Foundation; either version 2 of the License, or	11	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	12	* option) any later version.
11		13	*
12	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,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	17	* GNU General Public License for more details.
16		18	*
17	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
18	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
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	21	* <http://www.gnu.org/licenses/>.
20		22	*
21	The author can be reached via e-mail to <crossfire@schmorp.de>	23	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	24	*/
23		25
24	/* 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. */
25		27
26	/* Reconfigured skills code to allow linking of skills to experience	28	/* Reconfigured skills code to allow linking of skills to experience
27	* 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.
39		41
40	/* #define SKILL_UTIL_DEBUG */	42	/* #define SKILL_UTIL_DEBUG */
41		43
42	#include <global.h>	44	#include <global.h>
43	#include <object.h>	45	#include <object.h>
44	#ifndef __CEXTRACT__
45	# include <sproto.h>	46	#include <sproto.h>
46	#endif
47	#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. */
48	#include <spells.h>	48	#include <spells.h>
49		49
50	/* Table of unarmed attack skills. Terminated by -1. This	50	const uint8_t skill_flags[NUM_SKILLS] = {
51	* is also the list that we should try to use skills when	51	0, // SK_NONE
52	* automatically applying one for the player.	52	# define def(uc, flags) flags,
53	* Note it is hardcoded in the skill_util.c that dragons always	53	# include "skillinc.h"
54	* want clawing if possible.	54	# undef def
55	*/
56	static uint8 unarmed_skills[] = {
57	SK_KARATE,
58	SK_CLAWING,
59	SK_FLAME_TOUCH,
60	SK_SPARK_TOUCH,
61	SK_SHIVER,
62	SK_ACID_SPLASH,
63	SK_POISON_NAIL,
64	SK_PUNCHING,
65	(uint8)-1
66	};	55	};
		56
		57	vector<object_ptr> skillvec;
67		58
68	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);
69	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);
70		61
71	/* init_skills basically just sets up the skill_names table	62	/* init_skills basically just sets up the skill_names table
72	* above. The index into the array is set up by the	63	* above. The index into the array is set up by the
73	* subtypes.	64	* subtypes.
74	*/	65	*/
75	void	66	void
76	init_skills (void)	67	init_skills ()
77	{	68	{
78	int i;	69	// nop
79	archetype *at;	70	}
80		71
81	for (at = first_archetype; at != NULL; at = at->next)	72	void
82	if (at->clone.type == SKILL)	73	add_skill_archetype (object *o)
		74	{
		75	assert (("skill name must equal skill skill", o->name == o->skill));
		76
		77	for (auto &&i = skillvec.begin (); i != skillvec.end (); ++i)
		78	if ((*i)->name == o->name)
83	{	79	{
84	if (skill_names[at->clone.subtype] != NULL)	80	// replace existing entry
85	LOG (llevError, "init_skills: multiple skill using same subtype %d, %s, %s\n",	81	SKILL_INDEX (o) = i - skillvec.begin ();
86	at->clone.subtype, &skill_names[at->clone.subtype], &at->clone.skill);	82	*i = o;
87	else	83	return;
88	skill_names[at->clone.subtype] = at->clone.skill;
89	}	84	}
90		85
91	/* This isn't really an error if there is no skill subtype set, but	86	// add new entry
92	* checking for this may catch some user errors.	87	assert (("only CS_NUM_SKILLS skills supported by client protocol", skillvec.size () < CS_NUM_SKILLS));
93	*/	88	SKILL_INDEX (o) = skillvec.size ();
94	for (i = 1; i < NUM_SKILLS; i++)	89	skillvec.push_back (o);
95	{
96	if (!skill_names[i])
97	LOG (llevError, "init_skills: skill subtype %d doesn't have a name?\n", i);
98	}
99	}	90	}
100
101		91
102	/* This function goes through the player inventory and sets	92	/* This function goes through the player inventory and sets
103	* up the last_skills[] array in the player object.	93	* up the last_skills[] array in the player object.
104	* the last_skills[] is used to more quickly lookup skills -	94	* the last_skills[] is used to more quickly lookup skills -
105	* mostly used for sending exp.	95	* mostly used for sending exp.
106	*/	96	*/
107	void	97	void
108	link_player_skills (object *op)	98	player::link_skills ()
109	{	99	{
110	object *tmp;	100	for (int i = 0; i < CS_NUM_SKILLS; ++i)
		101	last_skill_ob [i] = 0;
111		102
112	for (tmp = op->inv; tmp; tmp = tmp->below)	103	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
113	{
114	if (tmp->type == SKILL)	104	if (tmp->type == SKILL)
115	{	105	{
116	/* This is really a warning, hence no else below */	106	int idx = SKILL_INDEX (tmp);
117	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)
118	{	111	{
119	LOG (llevError, "Multiple skills with the same subtype? %s, %s\n",	112	last_skill_ob [idx] = tmp;
120	&op->contr->last_skill_ob[tmp->subtype]->skill, &tmp->skill);	113	if (ns)
		114	ns->last_skill_exp [idx] = -1;
121	}	115	}
122	if (tmp->subtype >= NUM_SKILLS)
123	{
124	LOG (llevError, "Invalid subtype number %d (range 0-%d)\n", tmp->subtype, NUM_SKILLS);
125	}
126	else
127	{
128	op->contr->last_skill_ob[tmp->subtype] = tmp;
129	op->contr->last_skill_exp[tmp->subtype] = -1;
130	}
131	}	116	}
132	}	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);
133	}	139	}
134		140
135	/* This returns the skill pointer of the given name (the	141	/* This returns the skill pointer of the given name (the
136	* one that accumlates exp, has the level, etc).	142	* one that accumulates exp, has the level, etc).
137	*	143	*
138	* It is presumed that the player will be needing to actually	144	* It is presumed that the player will be needing to actually
139	* 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
140	* tool, this code will equip it.	146	* tool, this code will equip it.
141	*/	147	*/
142	object *	148	object *
143	find_skill_by_name (object who, const char name)	149	find_skill_by_name (object *who, shstr_cmp sh)
144	{	150	{
145	object skill = NULL, skill_tool = NULL, *tmp;	151	object *skill_tool = 0;
146		152
147	if (!name)
148	return NULL;
149
150	/* We make sure the length of the string in the object is greater
151	* in length than the passed string. Eg, if we have a skill called
152	* 'hi', we don't want to match if the user passed 'high'
153	*/
154	for (tmp = who->inv; tmp != NULL; tmp = tmp->below)	153	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		154	if (tmp->skill == sh)
155	{	155	{
156	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]))
157	skill = tmp;	157	/* If this is a skill that can be used without applying tool, return it */
158		158	return splay (tmp);
159	/* Try to find appropriate skilltool. If the player has one already	159	/* Try to find appropriate skilltool. If the player has one already
160	* applied, we try to keep using that one.	160	* applied, we try to keep using that one.
161	*/	161	*/
162	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)
163	{
164	if (QUERY_FLAG (tmp, FLAG_APPLIED))
165	skill_tool = tmp;	163	skill_tool = tmp;
166	else if (!skill_tool \|\| !QUERY_FLAG (skill_tool, FLAG_APPLIED))
167	skill_tool = tmp;
168	}	164	}
169	}	165
170	/* If this is a skill that can be used without a tool, return it */	166	if (!skill_tool)
171	if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))
172	return skill;	167	return 0;
173		168
174	/* 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 -
175	* 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
176	* but not the skill itself, give it to them.	171	* but not the skill itself, give it to them.
177	*/	172	*/
178	if (skill_tool)	173	object *skill = who->give_skill (skill_tool->skill);
179	{	174
180	if (!QUERY_FLAG (skill_tool, FLAG_APPLIED))	175	if (!skill_tool->flag [FLAG_APPLIED])
181	{	176	if (!who->apply (splay (skill_tool)))
182	if (apply_special (who, skill_tool, 0))
183	return NULL;
184	}
185	if (!skill)
186	{
187	skill = give_skill_by_name (who, skill_tool->skill);
188	link_player_skills (who);
189	}
190	return skill;	177	return 0;
191	}	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
192	return NULL;	192	return 0;
193	}	193	}
194
195		194
196	/* This returns the skill pointer of the given name (the	195	/* This returns the skill pointer of the given name (the
197	* one that accumlates exp, has the level, etc).	196	* one that accumulates exp, has the level, etc).
198	*	197	*
199	* It is presumed that the player will be needing to actually	198	* It is presumed that the player will be needing to actually
200	* 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
201	* tool, this code will equip it.	200	* tool, this code will equip it.
202	*	201	*
203	* 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,
204	* but instead a skill name, we search by matching number.	203	* but instead a skill name, we search by matching number.
205	* this replaces find_skill.	204	* this replaces find_skill.
		205	*
		206	* MUST NOT BE USED IN NEW CODE! (schmorp)
206	*/	207	*/
207	object *	208	object *
208	find_skill_by_number (object *who, int skillno)	209	find_skill_by_number (object *who, int skillno)
209	{	210	{
210	object skill = NULL, skill_tool = NULL, *tmp;
211
212	if (skillno < 1 \|\| skillno >= NUM_SKILLS)
213	return NULL;
214
215	for (tmp = who->inv; tmp != NULL; tmp = tmp->below)	211	for (object *tmp = who->inv; tmp; tmp = tmp->below)
216	{
217	if (tmp->type == SKILL && tmp->subtype == skillno)	212	if (tmp->type == SKILL && tmp->subtype == skillno)
218	skill = tmp;	213	if (object *skop = find_skill_by_name (who, tmp->skill))
		214	return skop;
219		215
220	/* Try to find appropriate skilltool. If the player has one already	216	return 0;
221	* applied, we try to keep using that one.	217	}
222	*/	218
223	else if (tmp->type == SKILL_TOOL && tmp->subtype == skillno)	219	object *
224	{	220	object::give_skill (shstr_cmp name, bool can_use)
225	if (QUERY_FLAG (tmp, FLAG_APPLIED))	221	{
226	skill_tool = tmp;	222	object *skill = find_skill (this, name);
227	else if (!skill_tool \|\| !QUERY_FLAG (skill_tool, FLAG_APPLIED))	223
228	skill_tool = tmp;	224	if (!skill)
229	}	225	skill = give_skill_by_name (this, name);
230	}	226
231	/* If this is a skill that can be used without a tool, return it */	227	if (skill && can_use)
232	if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))	228	skill->flag [FLAG_CAN_USE_SKILL] = true;
		229
233	return skill;	230	return skill;
234
235	/* Player has a tool to use the skill. IF not applied, apply it -
236	* if not successful, return null. If they do have the skill tool
237	* but not the skill itself, give it to them.
238	*/
239	if (skill_tool)
240	{
241	if (!QUERY_FLAG (skill_tool, FLAG_APPLIED))
242	{
243	if (apply_special (who, skill_tool, 0))
244	return NULL;
245	}
246	if (!skill)
247	{
248	skill = give_skill_by_name (who, skill_tool->skill);
249	link_player_skills (who);
250	}
251	return skill;
252	}
253	return NULL;
254	}	231	}
255		232
256	/* This changes the objects skill to new_skill.
257	* note that this function doesn't always need to get used -
258	* you can now add skill exp to the player without the chosen_skill being
259	* set. This function is of most interest to players to update
260	* the various range information.
261	* if new_skill is null, this just unapplies the skill.
262	* flag has the current meaning:
263	* 0x1: If set, don't update the range pointer. This is useful when we
264	* need to ready a new skill, but don't want to clobber range.
265	* return 1 on success, 0 on error
266	*/
267
268	int
269	change_skill (object who, object new_skill, int flag)
270	{
271	int old_range;
272
273	if (who->type != PLAYER)
274	return 0;
275
276	old_range = who->contr->shoottype;
277
278	if (who->chosen_skill && who->chosen_skill == new_skill)
279	{
280	/* optimization for changing skill to current skill */
281	if (who->type == PLAYER && !(flag & 0x1))
282	who->contr->shoottype = range_skill;
283	return 1;
284	}
285
286	if (!new_skill \|\| who->chosen_skill)
287	if (who->chosen_skill)
288	apply_special (who, who->chosen_skill, AP_UNAPPLY);
289
290	/* Only goal in this case was to unapply a skill */
291	if (!new_skill)
292	return 0;
293
294	if (apply_special (who, new_skill, AP_APPLY))
295	{
296	return 0;
297	}
298	if (flag & 0x1)
299	who->contr->shoottype = (rangetype) old_range;
300
301	return 1;
302	}
303
304	/* This function just clears the chosen_skill and range_skill values
305	* inthe player.
306	*/
307	void
308	clear_skill (object *who)
309	{
310	who->chosen_skill = NULL;
311	CLEAR_FLAG (who, FLAG_READY_SKILL);
312	if (who->type == PLAYER)
313	{
314	who->contr->ranges[range_skill] = NULL;
315	if (who->contr->shoottype == range_skill)
316	who->contr->shoottype = range_none;
317	}
318	}
319
320	/* 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().
321	* 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.
322	* 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
323	* to utilize skills. Returns 1 on use of skill, otherwise 0.	236	* to utilize skills. Returns 1 on use of skill, otherwise 0.
324	* 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
325	* 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
326	* 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
327	* give any exp for their direct use (eg, throwing).	240	* give any exp for their direct use (eg, throwing).
328	* It returns 0 if no skill was used.	241	* It returns 0 if no skill was used.
329	*/	242	*/
330
331	int	243	int
332	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)
333	{	245	{
334	int success = 0, exp = 0;	246	int success = 0, exp = 0;
335	int did_alc = 0;
336	object tmp, next;
337		247
338	if (!skill)	248	if (!skill)
339	return 0;	249	return 0;
340		250
341	/* 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
…		…
343	* 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
344	* the player doesn't have a bucket for that, create one.	254	* the player doesn't have a bucket for that, create one.
345	*/	255	*/
346	if (skill->type != SKILL && op->type == PLAYER)	256	if (skill->type != SKILL && op->type == PLAYER)
347	{	257	{
348	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	258	for (object *tmp = op->inv; tmp; tmp = tmp->below)
349	{
350	if (tmp->type == SKILL && tmp->skill == skill->skill)	259	if (tmp->type == SKILL && tmp->skill == skill->skill)
351	break;	260	{
		261	skill = tmp;
		262	goto found;
352	}	263	}
353	if (!tmp)	264
354	tmp = give_skill_by_name (op, skill->skill);	265	skill = give_skill_by_name (op, skill->skill);
355	skill = tmp;	266	found: ;
356	}	267	}
357		268
358	// skill, by_whom, on_which_object, which direction, skill_argument	269	// skill, by_whom, on_which_object, which direction, skill_argument
359	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)))
360	return 0;	271	return 0;
361		272
362	switch (skill->subtype)	273	switch (skill->subtype)
363	{	274	{
364	case SK_LEVITATION:	275	case SK_LEVITATION:
365	/* Not 100% sure if this will work with new movement code -	276	/* Not 100% sure if this will work with new movement code -
366	* the levitation skill has move_type for flying, so when	277	* the levitation skill has move_type for flying, so when
367	* equipped, that should transfer to player, when not,	278	* equipped, that should transfer to player, when not,
368	* shouldn't.	279	* shouldn't.
369	*/	280	*/
370	if (QUERY_FLAG (skill, FLAG_APPLIED))	281	if (skill->flag [FLAG_APPLIED])
371	{	282	{
372	CLEAR_FLAG (skill, FLAG_APPLIED);	283	skill->clr_flag (FLAG_APPLIED);
373	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");	284	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");
374	}	285	}
375	else	286	else
376	{	287	{
377	SET_FLAG (skill, FLAG_APPLIED);	288	skill->set_flag (FLAG_APPLIED);
378	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!");
379	}	290	}
380	fix_player (op);	291
		292	op->update_stats ();
381	success = 1;	293	success = 1;
382	break;	294	break;
383		295
384	case SK_STEALING:	296	case SK_STEALING:
385	exp = success = steal (op, dir, skill);	297	exp = success = steal (op, dir, skill);
386	break;	298	break;
387		299
388	case SK_LOCKPICKING:	300	case SK_LOCKPICKING:
389	exp = success = pick_lock (op, dir, skill);	301	exp = success = pick_lock (op, dir, skill);
390	break;	302	break;
391		303
392	case SK_HIDING:	304	case SK_HIDING:
393	exp = success = hide (op, skill);	305	exp = success = hide (op, skill);
394	break;	306	break;
395		307
396	case SK_JUMPING:	308	case SK_JUMPING:
397	success = jump (op, dir, skill);	309	exp = success = jump (op, dir, skill);
398	break;	310	break;
399		311
400	case SK_INSCRIPTION:	312	case SK_INSCRIPTION:
401	exp = success = write_on_item (op, string, skill);	313	exp = success = write_on_item (op, string, skill);
402	break;	314	break;
403		315
404	case SK_MEDITATION:	316	case SK_MEDITATION:
405	meditate (op, skill);	317	meditate (op, skill);
406	success = 1;	318	success = 1;
407	break;	319	break;
408	/* note that the following 'attack' skills gain exp through hit_player() */	320	/* note that the following 'attack' skills gain exp through hit_player() */
409		321
410	case SK_KARATE:	322	case SK_KARATE:
411	(void) attack_hth (op, dir, "karate-chopped", skill);	323	attack_hth (op, dir, "karate-chopped", skill);
412	break;	324	break;
413		325
414	case SK_PUNCHING:	326	case SK_PUNCHING:
415	(void) attack_hth (op, dir, "punched", skill);	327	attack_hth (op, dir, "punched", skill);
416	break;	328	break;
417		329
418	case SK_FLAME_TOUCH:	330	case SK_FLAME_TOUCH:
419	(void) attack_hth (op, dir, "flamed", skill);	331	attack_hth (op, dir, "flamed", skill);
420	break;	332	break;
421		333
422	case SK_SPARK_TOUCH:	334	case SK_SPARK_TOUCH:
423	(void) attack_hth (op, dir, "zapped", skill);	335	attack_hth (op, dir, "zapped", skill);
424	break;	336	break;
425		337
426	case SK_SHIVER:	338	case SK_SHIVER:
427	(void) attack_hth (op, dir, "froze", skill);	339	attack_hth (op, dir, "froze", skill);
428	break;	340	break;
429		341
430	case SK_ACID_SPLASH:	342	case SK_ACID_SPLASH:
431	(void) attack_hth (op, dir, "dissolved", skill);	343	attack_hth (op, dir, "dissolved", skill);
432	break;	344	break;
433		345
434	case SK_POISON_NAIL:	346	case SK_POISON_NAIL:
435	(void) attack_hth (op, dir, "injected poison into", skill);	347	attack_hth (op, dir, "injected poison into", skill);
436	break;	348	break;
437		349
438	case SK_CLAWING:	350	case SK_CLAWING:
439	(void) attack_hth (op, dir, "clawed", skill);	351	attack_hth (op, dir, "clawed", skill);
440	break;	352	break;
441		353
442	case SK_ONE_HANDED_WEAPON:	354	case SK_ONE_HANDED_WEAPON:
443	case SK_TWO_HANDED_WEAPON:	355	case SK_TWO_HANDED_WEAPON:
444	(void) attack_melee_weapon (op, dir, NULL, skill);	356	attack_melee_weapon (op, dir, NULL, skill);
445	break;	357	break;
446		358
447	case SK_FIND_TRAPS:	359	case SK_FIND_TRAPS:
448	exp = success = find_traps (op, skill);	360	exp = success = find_traps (op, skill);
449	break;	361	break;
450		362
451	case SK_SINGING:	363	case SK_SINGING:
452	exp = success = singing (op, dir, skill);	364	exp = success = singing (op, dir, skill);
453	break;	365	break;
454		366
455	case SK_ORATORY:	367	case SK_ORATORY:
456	exp = success = use_oratory (op, dir, skill);	368	exp = success = use_oratory (op, dir, skill);
457	break;	369	break;
458		370
459	case SK_SMITHERY:	371	case SK_SMITHERY:
460	case SK_BOWYER:	372	case SK_BOWYER:
461	case SK_JEWELER:	373	case SK_JEWELER:
462	case SK_ALCHEMY:	374	case SK_ALCHEMY:
463	case SK_THAUMATURGY:	375	case SK_THAUMATURGY:
464	case SK_LITERACY:	376	case SK_LITERACY:
465	case SK_WOODSMAN:	377	case SK_WOODSMAN:
466	/* 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.
467	* failing that, we go and identify stuff.	379	* failing that, we go and identify stuff.
468	*/	380	*/
		381	{
		382	bool found_cauldron = false;
		383
469	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)
470	{	385	{
471	next = tmp->above;	386	next = tmp->above;
		387
472	if (QUERY_FLAG (tmp, FLAG_IS_CAULDRON))	388	if (tmp->flag [FLAG_IS_CAULDRON])
473	{	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
474	attempt_do_alchemy (op, tmp);	400	attempt_do_alchemy (op, tmp, skill);
		401
475	if (QUERY_FLAG (tmp, FLAG_APPLIED))	402	if (tmp->flag [FLAG_APPLIED])
476	esrv_send_inventory (op, tmp);	403	esrv_send_inventory (op, tmp);
477	did_alc = 1;
478	}	404	}
479	}	405	}
480	if (did_alc == 0)	406
		407	if (!found_cauldron)
481	exp = success = skill_ident (op, skill);	408	exp = success = skill_ident (op, skill);
		409	}
482	break;	410	break;
483		411
484	case SK_DET_MAGIC:	412	case SK_DET_MAGIC:
485	case SK_DET_CURSE:	413	case SK_DET_CURSE:
486	exp = success = skill_ident (op, skill);	414	exp = success = skill_ident (op, skill);
487	break;	415	break;
488		416
489	case SK_DISARM_TRAPS:	417	case SK_DISARM_TRAPS:
490	exp = success = remove_trap (op, dir, skill);	418	exp = success = remove_trap (op, dir, skill);
491	break;	419	break;
492		420
493	case SK_THROWING:	421	case SK_THROWING:
494	success = skill_throw (op, part, dir, string, skill);	422	success = skill_throw (op, part, dir, string, skill);
495	break;	423	break;
496		424
497	case SK_SET_TRAP:	425	case SK_SET_TRAP:
498	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.");
499	break;	427	break;
500		428
501	case SK_USE_MAGIC_ITEM:	429	case SK_USE_MAGIC_ITEM:
502	case SK_MISSILE_WEAPON:	430	case SK_MISSILE_WEAPON:
503	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.");
504	break;	432	break;
505		433
506	case SK_PRAYING:	434	case SK_PRAYING:
507	success = pray (op, skill);	435	success = pray (op, skill);
508	break;	436	break;
509		437
510	case SK_BARGAINING:	438	case SK_BARGAINING:
511	success = describe_shop (op);	439	success = describe_shop (op);
512	break;	440	break;
513		441
514	case SK_SORCERY:	442	case SK_SORCERY:
515	case SK_EVOCATION:	443	case SK_EVOCATION:
516	case SK_PYROMANCY:	444	case SK_PYROMANCY:
517	case SK_SUMMONING:	445	case SK_SUMMONING:
518	case SK_CLIMBING:	446	case SK_CLIMBING:
519	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.");
520	break;	448	break;
521		449
		450	case SK_MINING:
		451	success = skill_mining (op, part, skill, dir, string);
		452	break;
		453
522	default:	454	default:
523	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);
524	break;	456	break;
525	}	457	}
526		458
527	/* 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.
528	* 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
529	* which use_monster_skill is called already simulates this.	461	* which use_monster_skill is called already simulates this.
530	* If certain skills should take more/less time, that should be	462	* If certain skills should take more/less time, that should be
531	* in the code for the skill itself.	463	* in the code for the skill itself.
532	*/	464	*/
533
534	if (op->type == PLAYER)	465	if (op->type == PLAYER)
535	op->speed_left -= 1.0;	466	op->speed_left -= 1.f;
536		467
537	/* 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.
538	* Note that add_exp() will figure out player/monster experience	469	* Note that add_exp() will figure out player/monster experience
539	* gain problems.	470	* gain problems.
540	*/	471	*/
…		…
568	* op is the object that was 'defeated'.	499	* op is the object that was 'defeated'.
569	* 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
570	* point back to who.	501	* point back to who.
571	*	502	*
572	*/	503	*/
573
574	int	504	int
575	calc_skill_exp (object who, object op, object *skill)	505	calc_skill_exp (object who, object op, object *skill)
576	{	506	{
577	int op_exp = 0, op_lvl = 0;	507	int op_exp = 0, op_lvl = 0;
578	float base, value, lvl_mult = 0.0;	508	float base, value, lvl_mult = 0.0;
…		…
585	* non-living magic obj, runes and everything else.	515	* non-living magic obj, runes and everything else.
586	*	516	*
587	* 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
588	* help out exp awards for skill_ident skills. Also, if	518	* help out exp awards for skill_ident skills. Also, if
589	* 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
590	* and level (this was the old system) -b.t.	520	* and level (this was the old system) -b.t.
591	*/	521	*/
592
593	if (!op)	522	if (!op)
594	{ /* no item/creature */	523	{ /* no item/creature */
595	op_lvl = who->map->difficulty < 1 ? 1 : who->map->difficulty;	524	op_lvl = max (1, who->map->difficulty);
596	op_exp = 0;	525	op_exp = 0;
597	}	526	}
598	else if (op->type == RUNE \|\| op->type == TRAP)	527	else if (op->type == RUNE \|\| op->type == TRAP)
599	{ /* all traps. If stats.Cha > 1 we use that	528	{ /* all traps. If stats.Cha > 1 we use that
600	* for the amount of experience */	529	* for the amount of experience */
…		…
603	}	532	}
604	else	533	else
605	{ /* all other items/living creatures */	534	{ /* all other items/living creatures */
606	op_exp = op->stats.exp;	535	op_exp = op->stats.exp;
607	op_lvl = op->level;	536	op_lvl = op->level;
608	if (!QUERY_FLAG (op, FLAG_ALIVE))	537	if (!op->flag [FLAG_ALIVE])
609	{ /* for ident/make items */	538	op_lvl += 5 * abs (op->magic); /* for ident/make items */
610	op_lvl += 5 * abs (op->magic);
611	}
612	}	539	}
613		540
614	if (op_lvl < 1)	541	if (op_lvl < 1)
615	op_lvl = 1;	542	op_lvl = 1;
616		543
…		…
624	/* 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
625	* bse reward value (exp) and level multiplier factor.	552	* bse reward value (exp) and level multiplier factor.
626	*/	553	*/
627	if (skill->type == SKILL)	554	if (skill->type == SKILL)
628	{	555	{
629	base += skill->arch->clone.stats.exp;	556	base += skill->arch->stats.exp;
630	if (settings.simple_exp)	557	if (settings.simple_exp)
631	{	558	{
632	if (skill->arch->clone.level)	559	if (skill->arch->level)
633	lvl_mult = (float) skill->arch->clone.level / 100.0;	560	lvl_mult = (float) skill->arch->level / 100.0;
634	else	561	else
635	lvl_mult = 1.0; /* no adjustment */	562	lvl_mult = 1.0; /* no adjustment */
636	}	563	}
637	else	564	else
638	{	565	{
639	if (skill->level)	566	if (skill->level)
640	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);
641	else	568	else
642	lvl_mult = 1.0;	569	lvl_mult = 1.0;
643	}	570	}
644	}	571	}
645	else	572	else
646	{	573	{
647	/* Don't divide by zero here! */	574	/* Don't divide by zero here! */
648	lvl_mult = (float) op_lvl / (float) (skill->level ? skill->level : 1);	575	lvl_mult = (float) op_lvl / (float) max (1, skill->level);
649	}	576	}
650	}	577	}
651		578
652	/* assemble the exp total, and return value */	579	/* assemble the exp total, and return value */
653		580
…		…
662	}	589	}
663		590
664	/* Learn skill. This inserts the requested skill in the player's	591	/* Learn skill. This inserts the requested skill in the player's
665	* inventory. The skill field of the scroll should have the	592	* inventory. The skill field of the scroll should have the
666	* exact name of the requested skill.	593	* exact name of the requested skill.
667	* This one actually teaches the player the skill as something	594	* This one actually teaches the player the skill as something
668	* they can equip.	595	* they can equip.
669	* Return 0 if the player knows the skill, 1 if the	596	* Return 0 if the player knows the skill, 1 if the
670	* player learns the skill, 2 otherwise.	597	* player learns the skill, 2 otherwise.
671	*/	598	*/
672
673	int	599	int
674	learn_skill (object pl, object scroll)	600	learn_skill (object pl, object scroll)
675	{	601	{
676	object *tmp;
677
678	if (!scroll->skill)	602	if (!scroll->skill)
679	{	603	{
680	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);
681	return 2;	605	return 2;
682	}	606	}
683		607
684	/* can't use find_skill_by_name because we want skills the player knows	608	object *tmp = find_skill (pl, scroll->skill);
685	* but can't use natively.
686	*/
687
688	for (tmp = pl->inv; tmp != NULL; tmp = tmp->below)
689	if (tmp->type == SKILL && !strncasecmp (scroll->skill, tmp->skill, strlen (scroll->skill)))
690	break;
691		609
692	/* player already knows it */	610	/* player already knows it */
693	if (tmp && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL))	611	if (tmp && tmp->flag [FLAG_CAN_USE_SKILL])
694	return 0;	612	return 0;
695
696
697		613
698	/* now a random change to learn, based on player Int.	614	/* now a random change to learn, based on player Int.
699	* give bonus based on level - otherwise stupid characters	615	* give bonus based on level - otherwise stupid characters
700	* might never be able to learn anything.	616	* might never be able to learn anything.
701	*/	617	*/
…		…
709	{	625	{
710	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);
711	return 2;	627	return 2;
712	}	628	}
713		629
714	SET_FLAG (tmp, FLAG_CAN_USE_SKILL);	630	tmp->set_flag (FLAG_CAN_USE_SKILL);
715	link_player_skills (pl);	631
716	return 1;	632	return 1;
717	}	633	}
718		634
719	/* Gives a percentage clipped to 0% -> 100% of a/b. */	635	/* Gives a percentage clipped to 0% -> 100% of a/b. */
720
721	/* Probably belongs in some global utils-type file? */	636	/* Probably belongs in some global utils-type file? */
722	static int	637	static int
723	clipped_percent (sint64 a, sint64 b)	638	clipped_percent (sint64 a, sint64 b)
724	{	639	{
725	int rv;	640	int rv;
…		…
733	return 0;	648	return 0;
734	else if (rv > 100)	649	else if (rv > 100)
735	return 100;	650	return 100;
736		651
737	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));
738	}	660	}
739		661
740	/* show_skills() - Meant to allow players to examine	662	/* show_skills() - Meant to allow players to examine
741	* their current skill list.	663	* their current skill list.
742	* This shows the amount of exp they have in the skills.	664	* This shows the amount of exp they have in the skills.
743	* we also include some other non skill related info (god,	665	* we also include some other non skill related info (god,
744	* max weapon improvments, item power).	666	* max weapon improvments, item power).
745	* Note this function is a bit more complicated becauase we	667	* Note this function is a bit more complicated because we
746	* we want ot sort the skills before printing them. If we	668	* we want to sort the skills before printing them. If we
747	* 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
748	* simpler.	670	* simpler.
749	*/	671	*/
750
751	void	672	void
752	show_skills (object op, const char search)	673	show_skills (object pl, const char search)
753	{	674	{
754	object *tmp = NULL;
755	char buf[MAX_BUF];
756	const char *cp;	675	const char *cp;
757	int i, num_skills_found = 0;	676	int i, num_skills_found = 0;
758	static const char *const periods = "........................................";	677	object *skills[CS_NUM_SKILLS];
		678	object *op = pl->contr->ob;
759		679
760	/* Need to have a pointer and use strdup for qsort to work properly */	680	/* find the skills */
761	char skills[NUM_SKILLS][MAX_BUF];
762
763
764	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	681	for (object *tmp = op->inv; tmp; tmp = tmp->below)
765	{	682	{
766	if (tmp->type == SKILL)	683	if (tmp->type == SKILL)
767	{	684	{
768	if (search && strstr (tmp->name, search) == NULL)	685	if (search && !tmp->name.contains (search))
769	continue;	686	continue;
770	/* Basically want to fill this out to 40 spaces with periods */
771	sprintf (buf, "%s%s", &tmp->name, periods);
772	buf[40] = 0;
773		687
774	if (settings.permanent_exp_ratio)	688	skills[num_skills_found++] = tmp;
775	{	689
776	sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%lld/%lld/%d%%)",
777	buf, tmp->level,
778	(long long) tmp->stats.exp,
779	(long long) level_exp (tmp->level + 1, op->expmul), clipped_percent (tmp->perm_exp, tmp->stats.exp));
780	}
781	else
782	{
783	sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%lld/%lld)",
784	buf, tmp->level, (long long) tmp->stats.exp, (long long) level_exp (tmp->level + 1, op->expmul));
785	}
786	/* 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
787	* it sometimes happens (maybe a leftover from bugier earlier code	691	* it sometimes happens (maybe a leftover from bugier earlier code
788	* and those character are still about). In any case, lets handle	692	* and those character are still about). In any case, lets handle
789	* 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
790	* crash the server numerous times.	694	* crash the server numerous times.
791	*/	695	*/
792	if (num_skills_found >= NUM_SKILLS)	696	if (num_skills_found >= CS_NUM_SKILLS)
793	{	697	{
794	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.");
795	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");
796	break;	700	break;
797	}	701	}
798	}	702	}
799	}	703	}
800		704
801	clear_win_info (op);	705	dynbuf_text &msg = msg_dynbuf; msg.clear ();
802	new_draw_info (NDI_UNIQUE, 0, op, "Player skills:");	706
		707	msg << "T<Player skills:>\n\n";
803	if (num_skills_found > 1)	708	if (num_skills_found > 1)
804	qsort (skills, num_skills_found, MAX_BUF, (int ()(const void , const void *)) strcmp);	709	qsort (skills, num_skills_found, sizeof (skills [0]), cmp_skillp);
805		710
		711	char buf[31]; /* +1 for '\0' */
		712	const char *const periods = ".............................."; // 30
		713
806	for (i = 0; i < num_skills_found; i++)	714	for (i = 0; i < num_skills_found; i++) {
807	{	715	object *tmp = skills[i];
808	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";
809	}	731	}
810		732
811	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";
812		734
813	cp = determine_god (op);	735	cp = determine_god (op);
814	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";
815		737
816	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
817	op->contr->item_power, (int) (op->level * settings.item_power_factor));	739	<< " out of " << int (op->level * settings.item_power_factor)
818	}	740	<< ".\n";
819		741
		742	pl->contr->infobox (MSG_CHANNEL ("skills"), msg);
		743	}
		744
820	/* 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
821	* 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
822	* 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.
823	* This is tricky because skills can have spaces. We basically roll	748	* This is tricky because skills can have spaces. We basically roll
824	* 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.
825	*/	750	*/
826
827	int	751	int
828	use_skill (object op, const char string)	752	use_skill (object op, const char string)
829	{	753	{
830	object *skop;	754	object *skop;
831	size_t len;	755	size_t len;
832		756
833	if (!string)	757	if (!string)
834	return 0;	758	return 0;
835		759
836	for (skop = op->inv; skop != NULL; skop = skop->below)	760	for (skop = op->inv; skop; skop = skop->below)
837	{	761	if ((skop->type == SKILL \|\| skop->type == SKILL_TOOL)
838	if (skop->type == SKILL && QUERY_FLAG (skop, FLAG_CAN_USE_SKILL) &&
839	!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);
840	break;	765	break;
841	else if (skop->type == SKILL_TOOL && !strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))
842	break;
843	}	766	}
		767
844	if (!skop)	768	if (!skop)
845	{	769	{
846	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	);
847	return 0;	782	return 0;
848	}	783	}
849		784
850	len = strlen (skop->skill);	785	len = strlen (skop->skill);
851		786
…		…
853	* options given to the skill. Its pretty simple - if there	788	* options given to the skill. Its pretty simple - if there
854	* are extra parameters (as deteremined by string length), we	789	* are extra parameters (as deteremined by string length), we
855	* want to skip over any leading spaces.	790	* want to skip over any leading spaces.
856	*/	791	*/
857	if (len >= strlen (string))	792	if (len >= strlen (string))
858	{
859	string = NULL;	793	string = NULL;
860	}
861	else	794	else
862	{	795	{
863	string += len;	796	string += len;
864	while (*string == 0x20)	797	while (*string == 0x20)
865	string++;	798	string++;
		799
866	if (strlen (string) == 0)	800	if (strlen (string) == 0)
867	string = NULL;	801	string = NULL;
868	}	802	}
869		803
870	#ifdef SKILL_UTIL_DEBUG	804	#ifdef SKILL_UTIL_DEBUG
871	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");
872	#endif	806	#endif
873		807
874	/* Change to the new skill, then execute it. */
875	if (do_skill (op, op, skop, op->facing, string))	808	if (do_skill (op, op, skop, op->facing, string))
876	return 1;	809	return 1;
877		810
878	return 0;	811	return 0;
879	}	812	}
880		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	}
881		819
882
883	/* This finds the best unarmed skill the player has, and returns	820	/* This finds the first unarmed skill the player has, and returns it.
884	* it. Best can vary a little - we consider clawing to always
885	* be the best for dragons.
886	* This could be more intelligent, eg, look at the skill level
887	* of the skill and go from there (eg, a level 40 puncher is
888	* is probably better than level 1 karate). OTOH, if you
889	* don't bother to set up your skill properly, that is the players
890	* problem (although, it might be nice to have a preferred skill
891	* field the player can set.
892	* Unlike the old code, we don't give out any skills - it is
893	* possible you just don't have any ability to get into unarmed
894	* combat. If everyone race/class should have one, this should
895	* be handled in the starting treasurelists, not in the code.
896	*/	821	*/
897	static object *	822	static object *
898	find_best_player_hth_skill (object *op)	823	find_player_hth_skill (object *op)
899	{	824	{
900	object tmp, best_skill = NULL;
901	int dragon = is_dragon_pl (op), last_skill = sizeof (unarmed_skills), i;
902
903	for (tmp = op->inv; tmp; tmp = tmp->below)	825	for (object *tmp = op->inv; tmp; tmp = tmp->below)
904	{	826	if (tmp->type == SKILL && tmp->flag [FLAG_CAN_USE_SKILL] && hth_skill_p (tmp))
905	if (tmp->type == SKILL)
906	{
907	if (dragon && tmp->subtype == SK_CLAWING)
908	return tmp;	827	return tmp;
909		828
910	/* The order in the array is preferred order. So basically,	829	return 0;
911	* we just cut down the number to search - eg, if we find a skill
912	* early on in flame touch, then we only need to look into the unarmed_array
913	* to the entry before flame touch - don't care about the entries afterward,
914	* because they are infrerior skills.
915	* if we end up finding the best skill (i==0) might as well return
916	* right away - can't get any better than that.
917	*/
918	for (i = 0; i < last_skill; i++)
919	{
920	if (tmp->subtype == unarmed_skills[i] && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL))
921	{
922	best_skill = tmp;
923	last_skill = i;
924	if (i == 0)
925	return best_skill;
926	}
927	}
928	}
929	}
930	return best_skill;
931	}	830	}
932		831
933	/* do_skill_attack() - We have got an appropriate opponent from either	832	/* do_skill_attack() - We have got an appropriate opponent from either
934	* 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
935	* 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.
…		…
937	* tmp is the targetted monster.	836	* tmp is the targetted monster.
938	* op is what is attacking	837	* op is what is attacking
939	* string is passed along to describe what messages to describe	838	* string is passed along to describe what messages to describe
940	* the damage.	839	* the damage.
941	*/	840	*/
942
943	static int	841	static int
944	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)
945	{	843	{
946	int success;
947
948	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)))
949	return RESULT_INT (0);	845	return RESULT_INT (0);
950		846
951	/* 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
952	* 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.
953	* 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,
954	* 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
955	* 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.
956	*/	852	*/
957	if (op->type == PLAYER)	853	if (player *pl = op->contr)
958	{	854	{
959	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))	855	if (skill)
960	{	856	{
961	size_t i;
962
963	if (!skill)	857	if (!op->apply (skill))
		858	return 0;
		859	}
		860	else
		861	{
		862	if (!pl->combat_ob)
964	{	863	{
965	/* See if the players chosen skill is a combat skill, and use	864	if (op->flag [FLAG_READY_WEAPON])
966	* it if appropriate.
967	*/
968	if (op->chosen_skill)
969	{	865	{
970	for (i = 0; i < sizeof (unarmed_skills); i++)	866	for (tmp = op->inv; tmp; tmp = tmp->below)
971	if (op->chosen_skill->subtype == unarmed_skills[i])	867	if (tmp->type == WEAPON && tmp->flag [FLAG_APPLIED])
972	{
973	skill = op->chosen_skill;
974	break;	868	break;
975	}	869
		870	if (!tmp)
		871	LOG (llevError, "Could not find applied weapon on %s\n", &op->name);
		872
		873	pl->combat_ob = tmp;
976	}	874	}
977	/* If we didn't find a skill above, look harder for a good skill */	875
978	if (!skill)	876	if (!pl->combat_ob)
979	{	877	{
980	skill = find_best_player_hth_skill (op);	878	/* See if the players chosen skill is a combat skill, and use
981		879	* it if appropriate.
982	if (!skill)	880	*/
		881	if (op->chosen_skill && hth_skill_p (op->chosen_skill))
		882	skill = op->chosen_skill;
		883	else
983	{	884	{
		885	skill = find_player_hth_skill (op);
		886
		887	if (!skill)
984	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!");
985	return 0;
986	}	889	}
		890
		891	op->apply (skill);
987	}	892	}
988	}	893
989	if (skill != op->chosen_skill)	894	if (!pl->combat_ob)
990	{	895	{
991	/* now try to ready the new skill */	896	LOG (llevError, "Could not find anything to attack on %s\n", &op->name);
992	if (!change_skill (op, skill, 0))
993	{ /* oh oh, trouble! */
994	new_draw_info_format (NDI_UNIQUE, 0, tmp, "Couldn't change to skill %s", &skill->name);
995	return 0;	897	return 0;
996	}	898	}
997	}	899	}
998	}	900
999	else	901	if (!op->apply (pl->combat_ob))
1000	{	902	return 0;
1001	/* Seen some crashes below where current_weapon is not set,	903
1002	* even though the flag says it is. So if current weapon isn't set,	904	if (!op->chosen_skill)
1003	* do some work in trying to find the object to use.
1004	*/
1005	if (!op->current_weapon)
1006	{	905	{
1007	object *tmp;	906	LOG (llevError, "do_skill_attack: weapon has no skill (%s)", pl->combat_ob->debug_desc ());
1008		907	new_draw_info (NDI_RED \| NDI_REPLY, 0, op, "You hit a bug in the server, please contact an admin!");
1009	LOG (llevError, "Player %s does not have current weapon set but flag_ready_weapon is set\n", &op->name);
1010	for (tmp = op->inv; tmp; tmp = tmp->below)
1011	if (tmp->type == WEAPON && QUERY_FLAG (tmp, FLAG_APPLIED))
1012	break;
1013
1014	if (!tmp)
1015	{
1016	LOG (llevError, "Could not find applied weapon on %s\n", &op->name);
1017	op->current_weapon = NULL;
1018	return 0;	908	return 0;
1019	}
1020	else
1021	{
1022	op->current_weapon = tmp;
1023	}
1024	}
1025
1026	/* Has ready weapon - make sure chosen_skill is set up properly */
1027	if (!op->chosen_skill \|\| op->current_weapon->skill != op->chosen_skill->skill)
1028	{
1029	change_skill (op, find_skill_by_name (op, op->current_weapon->skill), 1);
1030	}	909	}
1031	}	910	}
1032	}
1033		911
1034	/* lose invisiblity/hiding status for running attacks */	912	/* lose invisiblity/hiding status for running attacks */
1035		913	if (pl->tmp_invis)
1036	if (op->type == PLAYER && op->contr->tmp_invis)	914	{
1037	{
1038	op->contr->tmp_invis = 0;	915	pl->tmp_invis = 0;
1039	op->invisible = 0;	916	op->invisible = 0;
1040	op->hide = 0;	917	op->flag [FLAG_HIDDEN] = 0;
1041	update_object (op, UP_OBJ_FACE);	918	update_object (op, UP_OBJ_CHANGE);
		919	}
1042	}	920	}
1043		921
1044	success = attack_ob (tmp, op);	922	int success = attack_ob (tmp, op);
1045		923
1046	/* print appropriate messages to the player */	924	/* print appropriate messages to the player */
1047		925
1048	if (success && string != NULL && tmp && !QUERY_FLAG (tmp, FLAG_FREED))	926	if (success && string && tmp && !tmp->flag [FLAG_FREED])
1049	{	927	{
1050	if (op->type == PLAYER)	928	if (op->type == PLAYER)
1051	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));
1052	else if (tmp->type == PLAYER)	930	else if (tmp->type == PLAYER)
1053	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);
1054	}	932	}
		933
1055	return success;	934	return success;
1056	}	935	}
1057
1058		936
1059	/* 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
1060	* system. In essence, this code handles	938	* system. In essence, this code handles
1061	* 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
1062	* treated here. If an opponent is already supplied by move_player(),	940	* treated here. If an opponent is already supplied by move_player(),
1063	* 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
1064	* appropriate opponent exists.	942	* appropriate opponent exists.
1065	*	943	*
1066	* This is called by move_player() and attack_hth()	944	* This is called by move_player() and attack_hth()
1067	*	945	*
1068	* Initial implementation by -bt thomas@astro.psu.edu	946	* Initial implementation by -bt thomas@astro.psu.edu
1069	*/	947	*/
1070
1071	int	948	int
1072	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)
1073	{	950	{
1074	sint16 tx, ty;	951	sint16 tx, ty;
1075	maptile *m;	952	maptile *m;
1076	int mflags;	953	int mflags;
1077		954
1078	if (!dir)	955	if (!dir)
1079	dir = pl->facing;	956	dir = pl->facing;
1080	tx = freearr_x[dir];	957
1081	ty = freearr_y[dir];	958	tx = DIRX (dir);
		959	ty = DIRY (dir);
1082		960
1083	/* 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.
1084	* Legal opponents are the same as outlined in move_player_attack()	962	* Legal opponents are the same as outlined in move_player_attack()
1085	*/	963	*/
1086		964	if (!tmp)
1087	if (tmp == NULL)
1088	{	965	{
1089	m = pl->map;	966	m = pl->map;
1090	tx = pl->x + freearr_x[dir];	967	tx = pl->x + DIRX (dir);
1091	ty = pl->y + freearr_y[dir];	968	ty = pl->y + DIRY (dir);
1092		969
1093	mflags = get_map_flags (m, &m, tx, ty, &tx, &ty);	970	mflags = get_map_flags (m, &m, tx, ty, &tx, &ty);
1094	if (mflags & P_OUT_OF_MAP)	971	if (mflags & P_OUT_OF_MAP)
1095	return 0;	972	return 0;
1096		973
1097	/* 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 */
1098	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)))
1099	return 0;	976	return 0;
1100		977
1101	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)
1102	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)
1103	{	980	{
1104	/* Don't attack party members */	981	/* Don't attack party members */
1105	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))
1106	return 0;	983	return 0;
		984
1107	break;	985	break;
1108	}	986	}
1109	}	987	}
		988
1110	if (!tmp)	989	if (!tmp)
1111	{	990	{
1112	if (pl->type == PLAYER)	991	if (pl->type == PLAYER)
1113	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
1114	return 0;	994	return 0;
1115	}	995	}
1116		996
1117	return do_skill_attack (tmp, pl, string, skill);	997	return do_skill_attack (tmp, pl, string, skill);
1118	}	998	}
1119
1120		999
1121	/* attack_hth() - this handles all hand-to-hand attacks -b.t. */	1000	/* attack_hth() - this handles all hand-to-hand attacks -b.t. */
1122		1001
1123	/* 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
1124	* (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
1125	* function skill_attack() we actually attack.	1004	* function skill_attack() we actually attack.
1126	*/	1005	*/
1127
1128	static int	1006	static int
1129	attack_hth (object pl, int dir, const char string, object *skill)	1007	attack_hth (object pl, int dir, const char string, object *skill)
1130	{	1008	{
1131	object enemy = NULL, weapon;	1009	object enemy = NULL, weapon;
1132		1010
1133	if (QUERY_FLAG (pl, FLAG_READY_WEAPON))	1011	if (pl->flag [FLAG_READY_WEAPON])
1134	for (weapon = pl->inv; weapon; weapon = weapon->below)	1012	for (weapon = pl->inv; weapon; weapon = weapon->below)
1135	{	1013	{
1136	if (weapon->type == WEAPON && QUERY_FLAG (weapon, FLAG_APPLIED))	1014	if (weapon->type == WEAPON && weapon->flag [FLAG_APPLIED])
1137	{	1015	{
1138	CLEAR_FLAG (weapon, FLAG_APPLIED);	1016	weapon->clr_flag (FLAG_APPLIED);
1139	CLEAR_FLAG (pl, FLAG_READY_WEAPON);	1017	pl->clr_flag (FLAG_READY_WEAPON);
1140	fix_player (pl);	1018	pl->update_stats ();
1141	if (pl->type == PLAYER)	1019	if (pl->type == PLAYER)
1142	{	1020	{
1143	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.");
1144	esrv_update_item (UPD_FLAGS, pl, weapon);	1022	esrv_update_item (UPD_FLAGS, pl, weapon);
1145	}	1023	}
		1024
1146	break;	1025	break;
1147	}	1026	}
1148	}	1027	}
		1028
1149	return skill_attack (enemy, pl, dir, string, skill);	1029	return skill_attack (enemy, pl, dir, string, skill);
1150	}	1030	}
1151
1152		1031
1153	/* attack_melee_weapon() - this handles melee weapon attacks -b.t.	1032	/* attack_melee_weapon() - this handles melee weapon attacks -b.t.
1154	* 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.
1155	* 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
1156	* bears mentioning:	1035	* bears mentioning:
1157	* 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
1158	* we may make this routine handle 'special' melee weapons attacks	1037	* we may make this routine handle 'special' melee weapons attacks
1159	* (like disarming manuever with sai) based on player SK_level and	1038	* (like disarming manuever with sai) based on player SK_level and
1160	* weapon type.	1039	* weapon type.
1161	*/	1040	*/
1162
1163	static int	1041	static int
1164	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)
1165	{	1043	{
1166		1044
1167	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))	1045	if (!op->flag [FLAG_READY_WEAPON])
1168	{	1046	{
1169	if (op->type == PLAYER)	1047	if (op->type == PLAYER)
1170	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
1171	return 0;	1050	return 0;
1172	}	1051	}
		1052
1173	return skill_attack (NULL, op, dir, string, skill);	1053	return skill_attack (NULL, op, dir, string, skill);
1174
1175	}	1054	}
		1055

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Comparing deliantra/server/server/skill_util.C (file contents): Revision 1.13 by root, Sat Sep 16 22:24:13 2006 UTC vs. Revision 1.110 by root, Sun Nov 18 00:37:11 2018 UTC

Diff Legend

Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.13 by root, Sat Sep 16 22:24:13 2006 UTC vs.
Revision 1.110 by root, Sun Nov 18 00:37:11 2018 UTC