[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 1.96 by root, Wed Apr 14 22:35:41 2010 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 $";	3	*
5	*/	4	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
6
7	/*
8	CrossFire, A Multiplayer game for X-windows
9
10	Copryight (C) 2002 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2002 Mark Wedel & Crossfire Development Team
11	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
12		7	*
13	This program is free software; you can redistribute it and/or modify	8	* 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	9	* 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	10	* Free Software Foundation, either version 3 of the License, or (at your
16	(at your option) any later version.	11	* option) any later version.
17		12	*
18	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
19	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
20	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21	GNU General Public License for more details.	16	* GNU General Public License for more details.
22		17	*
23	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
24	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
25	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
26		21	*
27	The author can be reached via e-mail to crossfire-devel@real-time.com	22	* The authors can be reached via e-mail to <support@deliantra.net>
28	*/	23	*/
29		24
30	/* Created July 95 to separate skill utilities from actual skills -b.t. */	25	/* Created July 95 to separate skill utilities from actual skills -b.t. */
31		26
32	/* Reconfigured skills code to allow linking of skills to experience	27	/* Reconfigured skills code to allow linking of skills to experience
33	* categories. This is done solely through the init_new_exp_system() fctn.	28	* categories. This is done solely through the init_new_exp_system() fctn.
43		38
44	/* define the following for skills utility debuging */	39	/* define the following for skills utility debuging */
45		40
46	/* #define SKILL_UTIL_DEBUG */	41	/* #define SKILL_UTIL_DEBUG */
47		42
48	#define WANT_UNARMED_SKILLS
49
50	#include <global.h>	43	#include <global.h>
51	#include <object.h>	44	#include <object.h>
52	#ifndef __CEXTRACT__
53	# include <sproto.h>	45	#include <sproto.h>
54	#endif
55	#include <living.h> /* for defs of STR,CON,DEX,etc. -b.t. */	46	#include <living.h> /* for defs of STR,CON,DEX,etc. -b.t. */
56	#include <spells.h>	47	#include <spells.h>
57		48
		49	const uint8_t skill_flags[NUM_SKILLS] = {
		50	0, // SK_NONE
		51	# define def(uc, flags) flags,
		52	# include "skillinc.h"
		53	# undef def
		54	};
		55
58	static int attack_hth (object pl, int dir, const char string, object *skill);	56	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);	57	static int attack_melee_weapon (object op, int dir, const char string, object *skill);
60
61	shstr skill_names[NUM_SKILLS];
62		58
63	/* init_skills basically just sets up the skill_names table	59	/* init_skills basically just sets up the skill_names table
64	* above. The index into the array is set up by the	60	* above. The index into the array is set up by the
65	* subtypes.	61	* subtypes.
66	*/	62	*/
67	void	63	void
68	init_skills (void)	64	init_skills ()
69	{	65	{
70	int i;	66	for_all_archetypes (at)
71	archetype *at;
72
73	for (at = first_archetype; at != NULL; at = at->next)
74	{
75	if (at->clone.type == SKILL)	67	if (at->type == SKILL)
76	{	68	{
77	if (skill_names[at->clone.subtype] != NULL)	69	if (skill_names[at->subtype])
78	{
79	LOG (llevError, "init_skills: multiple skill using same subtype %d, %s, %s\n",	70	LOG (llevError, "init_skills: multiple skill using same subtype %d, %s, %s\n",
80	at->clone.subtype, &skill_names[at->clone.subtype], &at->clone.skill);	71	at->subtype, &skill_names[at->subtype], &at->skill);
81	}
82	else	72	else
83	{
84	skill_names[at->clone.subtype] = at->clone.skill;	73	skill_names[at->subtype] = at->skill;
85	}
86	}	74	}
87	}
88		75
89	/* This isn't really an error if there is no skill subtype set, but	76	/* This isn't really an error if there is no skill subtype set, but
90	* checking for this may catch some user errors.	77	* checking for this may catch some user errors.
91	*/	78	*/
92	for (i = 1; i < NUM_SKILLS; i++)	79	for (int i = 1; i < NUM_SKILLS; i++)
93	{
94	if (!skill_names[i])	80	if (!skill_names[i])
95	LOG (llevError, "init_skills: skill subtype %d doesn't have a name?\n", i);	81	LOG (llevError, "init_skills: skill subtype %d doesn't have a name?\n", i);
96	}
97	}	82	}
98
99		83
100	/* This function goes through the player inventory and sets	84	/* This function goes through the player inventory and sets
101	* up the last_skills[] array in the player object.	85	* up the last_skills[] array in the player object.
102	* the last_skills[] is used to more quickly lookup skills -	86	* the last_skills[] is used to more quickly lookup skills -
103	* mostly used for sending exp.	87	* mostly used for sending exp.
104	*/	88	*/
105	void	89	void
106	link_player_skills (object *op)	90	player::link_skills ()
107	{	91	{
108	object *tmp;	92	for (int i = 0; i < NUM_SKILLS; ++i)
		93	last_skill_ob [i] = 0;
109		94
110	for (tmp = op->inv; tmp; tmp = tmp->below)	95	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
111	{
112	if (tmp->type == SKILL)	96	if (tmp->type == SKILL)
		97	{
		98	assert (IN_RANGE_EXC (tmp->subtype, 0, NUM_SKILLS));
		99
		100	if (last_skill_ob [tmp->subtype] != tmp)
113	{	101	{
114	/* This is really a warning, hence no else below */	102	/* This is really a warning, hence no else below */
115	if (op->contr->last_skill_ob[tmp->subtype] && op->contr->last_skill_ob[tmp->subtype] != tmp)	103	if (last_skill_ob [tmp->subtype])
116	{
117	LOG (llevError, "Multiple skills with the same subtype? %s, %s\n",	104	LOG (llevError, "Multiple skills with the same subtype? %s, %s\n",
118	&op->contr->last_skill_ob[tmp->subtype]->skill, &tmp->skill);	105	&last_skill_ob [tmp->subtype]->skill, &tmp->skill);
		106
		107	last_skill_ob [tmp->subtype] = tmp;
		108	if (ns)
		109	ns->last_skill_exp [tmp->subtype] = -1;
119	}	110	}
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	}	111	}
130	}	112	}
		113
		114	static object *
		115	find_skill (object *who, shstr_cmp name)
		116	{
		117	if (who->chosen_skill
		118	&& who->chosen_skill->skill == name
		119	&& who->chosen_skill->type == SKILL)
		120	return who->chosen_skill;
		121
		122	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		123	if (tmp->skill == name && tmp->type == SKILL)
		124	return splay (tmp);
		125
		126	return 0;
		127	}
		128
		129	object *
		130	player::find_skill (shstr_cmp name) const
		131	{
		132	// might want to use last_skill_obj at one point, or maybe not
		133	return ::find_skill (ob, name);
131	}	134	}
132		135
133	/* This returns the skill pointer of the given name (the	136	/* This returns the skill pointer of the given name (the
134	* one that accumlates exp, has the level, etc).	137	* one that accumulates exp, has the level, etc).
135	*	138	*
136	* It is presumed that the player will be needing to actually	139	* 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	140	* use the skill, so thus if use of the skill requires a skill
138	* tool, this code will equip it.	141	* tool, this code will equip it.
139	*/	142	*/
140	object *	143	object *
141	find_skill_by_name (object who, const char name)	144	find_skill_by_name (object *who, shstr_cmp sh)
142	{	145	{
143	object skill = NULL, skill_tool = NULL, *tmp;	146	object *skill_tool = 0;
144		147
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)	148	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		149	if (tmp->skill == sh)
153	{	150	{
154	if (tmp->type == SKILL && !strncasecmp (name, tmp->skill, strlen (name)) && (size_t) strlen (tmp->skill) >= strlen (name))	151	if (tmp->type == SKILL && (tmp->flag [FLAG_CAN_USE_SKILL] \|\| tmp->flag [FLAG_APPLIED]))
155	skill = tmp;	152	/* If this is a skill that can be used without applying tool, return it */
156		153	return splay (tmp);
157	/* Try to find appropriate skilltool. If the player has one already	154	/* Try to find appropriate skilltool. If the player has one already
158	* applied, we try to keep using that one.	155	* applied, we try to keep using that one.
159	*/	156	*/
160	else if (tmp->type == SKILL_TOOL && !strncasecmp (name, tmp->skill, strlen (name)) && (size_t) strlen (tmp->skill) >= strlen (name))	157	else if (tmp->type == SKILL_TOOL && !skill_tool)
161	{
162	if (QUERY_FLAG (tmp, FLAG_APPLIED))
163	skill_tool = tmp;	158	skill_tool = tmp;
164	else if (!skill_tool \|\| !QUERY_FLAG (skill_tool, FLAG_APPLIED))
165	skill_tool = tmp;
166	}	159	}
167	}	160
168	/* If this is a skill that can be used without a tool, return it */	161	if (!skill_tool)
169	if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))
170	return skill;	162	return 0;
171		163
172	/* Player has a tool to use the skill. IF not applied, apply it -	164	/* 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	165	* if not successful, return null. If they do have the skill tool
174	* but not the skill itself, give it to them.	166	* but not the skill itself, give it to them.
175	*/	167	*/
176	if (skill_tool)	168	object *skill = who->give_skill (skill_tool->skill);
177	{	169
178	if (!QUERY_FLAG (skill_tool, FLAG_APPLIED))	170	if (!skill_tool->flag [FLAG_APPLIED])
179	{	171	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;	172	return 0;
189	}	173
		174	return splay (skill);
		175	}
		176
		177	object *
		178	find_skill_by_name_fuzzy (object who, const char name)
		179	{
		180	if (name)
		181	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		182	if ((tmp->type == SKILL \|\| tmp->type == SKILL_TOOL)
		183	&& tmp->skill.starts_with (name))
		184	if (object *skop = find_skill_by_name (who, tmp->skill))
		185	return skop;
		186
190	return NULL;	187	return 0;
191	}	188	}
192
193		189
194	/* This returns the skill pointer of the given name (the	190	/* This returns the skill pointer of the given name (the
195	* one that accumlates exp, has the level, etc).	191	* one that accumulates exp, has the level, etc).
196	*	192	*
197	* It is presumed that the player will be needing to actually	193	* 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	194	* use the skill, so thus if use of the skill requires a skill
199	* tool, this code will equip it.	195	* tool, this code will equip it.
200	*	196	*
…		…
203	* this replaces find_skill.	199	* this replaces find_skill.
204	*/	200	*/
205	object *	201	object *
206	find_skill_by_number (object *who, int skillno)	202	find_skill_by_number (object *who, int skillno)
207	{	203	{
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)	204	for (object *tmp = who->inv; tmp; tmp = tmp->below)
214	{
215	if (tmp->type == SKILL && tmp->subtype == skillno)	205	if (tmp->type == SKILL && tmp->subtype == skillno)
216	skill = tmp;	206	if (object *skop = find_skill_by_name (who, tmp->skill))
		207	return skop;
217		208
218	/* Try to find appropriate skilltool. If the player has one already	209	return 0;
219	* applied, we try to keep using that one.	210	}
220	*/	211
221	else if (tmp->type == SKILL_TOOL && tmp->subtype == skillno)	212	object *
222	{	213	object::give_skill (shstr_cmp name, bool can_use)
223	if (QUERY_FLAG (tmp, FLAG_APPLIED))	214	{
224	skill_tool = tmp;	215	object *skill = find_skill (this, name);
225	else if (!skill_tool \|\| !QUERY_FLAG (skill_tool, FLAG_APPLIED))	216
226	skill_tool = tmp;	217	if (!skill)
227	}	218	skill = give_skill_by_name (this, name);
228	}	219
229	/* If this is a skill that can be used without a tool, return it */	220	if (skill && can_use)
230	if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))	221	skill->flag [FLAG_CAN_USE_SKILL] = true;
		222
231	return skill;	223	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	}
253
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	}	224	}
317		225
318	/* do_skill() - Main skills use function-similar in scope to cast_spell().	226	/* 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.	227	* 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	228	* We require a separate routine outside of fire() so as to allow monsters
…		…
323	* exp - no caller needed that info, but it also prevented the callers	231	* 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	232	* from know if a skill was actually used, as many skills don't
325	* give any exp for their direct use (eg, throwing).	233	* give any exp for their direct use (eg, throwing).
326	* It returns 0 if no skill was used.	234	* It returns 0 if no skill was used.
327	*/	235	*/
328
329	int	236	int
330	do_skill (object op, object part, object skill, int dir, const char string)	237	do_skill (object op, object part, object skill, int dir, const char string)
331	{	238	{
332	int success = 0, exp = 0;	239	int success = 0, exp = 0;
333	int did_alc = 0;
334	object tmp, next;
335		240
336	if (!skill)	241	if (!skill)
337	return 0;	242	return 0;
338		243
339	/* The code below presumes that the skill points to the object that	244	/* 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	246	* 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.	247	* the player doesn't have a bucket for that, create one.
343	*/	248	*/
344	if (skill->type != SKILL && op->type == PLAYER)	249	if (skill->type != SKILL && op->type == PLAYER)
345	{	250	{
346	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	251	for (object *tmp = op->inv; tmp; tmp = tmp->below)
347	{
348	if (tmp->type == SKILL && tmp->skill == skill->skill)	252	if (tmp->type == SKILL && tmp->skill == skill->skill)
349	break;	253	{
		254	skill = tmp;
		255	goto found;
350	}	256	}
351	if (!tmp)	257
352	tmp = give_skill_by_name (op, skill->skill);	258	skill = give_skill_by_name (op, skill->skill);
353	skill = tmp;	259	found: ;
354	}	260	}
355		261
356	// skill, by_whom, on_which_object, which direction, skill_argument	262	// 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)))	263	if (INVOKE_OBJECT (USE_SKILL, skill, ARG_OBJECT (op), ARG_OBJECT (part), ARG_INT (dir), ARG_STRING (string)))
358	return 0;	264	return 0;
359		265
360	switch (skill->subtype)	266	switch (skill->subtype)
361	{	267	{
362	case SK_LEVITATION:	268	case SK_LEVITATION:
363	/* Not 100% sure if this will work with new movement code -	269	/* Not 100% sure if this will work with new movement code -
364	* the levitation skill has move_type for flying, so when	270	* the levitation skill has move_type for flying, so when
365	* equipped, that should transfer to player, when not,	271	* equipped, that should transfer to player, when not,
366	* shouldn't.	272	* shouldn't.
367	*/	273	*/
368	if (QUERY_FLAG (skill, FLAG_APPLIED))	274	if (skill->flag [FLAG_APPLIED])
369	{	275	{
370	CLEAR_FLAG (skill, FLAG_APPLIED);	276	skill->clr_flag (FLAG_APPLIED);
371	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");	277	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");
372	}	278	}
373	else	279	else
374	{	280	{
375	SET_FLAG (skill, FLAG_APPLIED);	281	skill->set_flag (FLAG_APPLIED);
376	new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!.");	282	new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!");
377	}	283	}
378	fix_player (op);	284
		285	op->update_stats ();
379	success = 1;	286	success = 1;
380	break;	287	break;
381		288
382	case SK_STEALING:	289	case SK_STEALING:
383	exp = success = steal (op, dir, skill);	290	exp = success = steal (op, dir, skill);
384	break;	291	break;
385		292
386	case SK_LOCKPICKING:	293	case SK_LOCKPICKING:
387	exp = success = pick_lock (op, dir, skill);	294	exp = success = pick_lock (op, dir, skill);
388	break;	295	break;
389		296
390	case SK_HIDING:	297	case SK_HIDING:
391	exp = success = hide (op, skill);	298	exp = success = hide (op, skill);
392	break;	299	break;
393		300
394	case SK_JUMPING:	301	case SK_JUMPING:
395	success = jump (op, dir, skill);	302	exp = success = jump (op, dir, skill);
396	break;	303	break;
397		304
398	case SK_INSCRIPTION:	305	case SK_INSCRIPTION:
399	exp = success = write_on_item (op, string, skill);	306	exp = success = write_on_item (op, string, skill);
400	break;	307	break;
401		308
402	case SK_MEDITATION:	309	case SK_MEDITATION:
403	meditate (op, skill);	310	meditate (op, skill);
404	success = 1;	311	success = 1;
405	break;	312	break;
406	/* note that the following 'attack' skills gain exp through hit_player() */	313	/* note that the following 'attack' skills gain exp through hit_player() */
407		314
408	case SK_KARATE:	315	case SK_KARATE:
409	(void) attack_hth (op, dir, "karate-chopped", skill);	316	attack_hth (op, dir, "karate-chopped", skill);
410	break;	317	break;
411		318
412	case SK_PUNCHING:	319	case SK_PUNCHING:
413	(void) attack_hth (op, dir, "punched", skill);	320	attack_hth (op, dir, "punched", skill);
414	break;	321	break;
415		322
416	case SK_FLAME_TOUCH:	323	case SK_FLAME_TOUCH:
417	(void) attack_hth (op, dir, "flamed", skill);	324	attack_hth (op, dir, "flamed", skill);
418	break;	325	break;
419		326
420	case SK_SPARK_TOUCH:	327	case SK_SPARK_TOUCH:
421	(void) attack_hth (op, dir, "zapped", skill);	328	attack_hth (op, dir, "zapped", skill);
422	break;	329	break;
423		330
424	case SK_SHIVER:	331	case SK_SHIVER:
425	(void) attack_hth (op, dir, "froze", skill);	332	attack_hth (op, dir, "froze", skill);
426	break;	333	break;
427		334
428	case SK_ACID_SPLASH:	335	case SK_ACID_SPLASH:
429	(void) attack_hth (op, dir, "dissolved", skill);	336	attack_hth (op, dir, "dissolved", skill);
430	break;	337	break;
431		338
432	case SK_POISON_NAIL:	339	case SK_POISON_NAIL:
433	(void) attack_hth (op, dir, "injected poison into", skill);	340	attack_hth (op, dir, "injected poison into", skill);
434	break;	341	break;
435		342
436	case SK_CLAWING:	343	case SK_CLAWING:
437	(void) attack_hth (op, dir, "clawed", skill);	344	attack_hth (op, dir, "clawed", skill);
438	break;	345	break;
439		346
440	case SK_ONE_HANDED_WEAPON:	347	case SK_ONE_HANDED_WEAPON:
441	case SK_TWO_HANDED_WEAPON:	348	case SK_TWO_HANDED_WEAPON:
442	(void) attack_melee_weapon (op, dir, NULL, skill);	349	attack_melee_weapon (op, dir, NULL, skill);
443	break;	350	break;
444		351
445	case SK_FIND_TRAPS:	352	case SK_FIND_TRAPS:
446	exp = success = find_traps (op, skill);	353	exp = success = find_traps (op, skill);
447	break;	354	break;
448		355
449	case SK_SINGING:	356	case SK_SINGING:
450	exp = success = singing (op, dir, skill);	357	exp = success = singing (op, dir, skill);
451	break;	358	break;
452		359
453	case SK_ORATORY:	360	case SK_ORATORY:
454	exp = success = use_oratory (op, dir, skill);	361	exp = success = use_oratory (op, dir, skill);
455	break;	362	break;
456		363
457	case SK_SMITHERY:	364	case SK_SMITHERY:
458	case SK_BOWYER:	365	case SK_BOWYER:
459	case SK_JEWELER:	366	case SK_JEWELER:
460	case SK_ALCHEMY:	367	case SK_ALCHEMY:
461	case SK_THAUMATURGY:	368	case SK_THAUMATURGY:
462	case SK_LITERACY:	369	case SK_LITERACY:
463	case SK_WOODSMAN:	370	case SK_WOODSMAN:
464	/* first, we try to find a cauldron, and do the alchemy thing.	371	/* first, we try to find a cauldron, and do the alchemy thing.
465	* failing that, we go and identify stuff.	372	* failing that, we go and identify stuff.
466	*/	373	*/
		374	{
		375	bool found_cauldron = false;
		376
467	for (tmp = get_map_ob (op->map, op->x, op->y); tmp != NULL; tmp = next)	377	for (object next, tmp = GET_MAP_OB (op->map, op->x, op->y); tmp; tmp = next)
468	{	378	{
469	next = tmp->above;	379	next = tmp->above;
		380
470	if (QUERY_FLAG (tmp, FLAG_IS_CAULDRON))	381	if (tmp->flag [FLAG_IS_CAULDRON])
471	{	382	{
		383	found_cauldron = true;
		384
		385	if (tmp->skill != skill->skill)
		386	{
		387	op->failmsgf ("You can't use the %s with the %s skill!",
		388	query_name (tmp),
		389	query_name (skill));
		390	break;
		391	}
		392
472	attempt_do_alchemy (op, tmp);	393	attempt_do_alchemy (op, tmp, skill);
		394
473	if (QUERY_FLAG (tmp, FLAG_APPLIED))	395	if (tmp->flag [FLAG_APPLIED])
474	esrv_send_inventory (op, tmp);	396	esrv_send_inventory (op, tmp);
475	did_alc = 1;
476	}	397	}
477	}	398	}
478	if (did_alc == 0)	399
		400	if (!found_cauldron)
479	exp = success = skill_ident (op, skill);	401	exp = success = skill_ident (op, skill);
		402	}
480	break;	403	break;
481		404
482	case SK_DET_MAGIC:	405	case SK_DET_MAGIC:
483	case SK_DET_CURSE:	406	case SK_DET_CURSE:
484	exp = success = skill_ident (op, skill);	407	exp = success = skill_ident (op, skill);
485	break;	408	break;
486		409
487	case SK_DISARM_TRAPS:	410	case SK_DISARM_TRAPS:
488	exp = success = remove_trap (op, dir, skill);	411	exp = success = remove_trap (op, dir, skill);
489	break;	412	break;
490		413
491	case SK_THROWING:	414	case SK_THROWING:
492	success = skill_throw (op, part, dir, string, skill);	415	success = skill_throw (op, part, dir, string, skill);
493	break;	416	break;
494		417
495	case SK_SET_TRAP:	418	case SK_SET_TRAP:
496	new_draw_info (NDI_UNIQUE, 0, op, "This skill is not currently implemented.");	419	new_draw_info (NDI_UNIQUE, 0, op, "This skill is not currently implemented.");
497	break;	420	break;
498		421
499	case SK_USE_MAGIC_ITEM:	422	case SK_USE_MAGIC_ITEM:
500	case SK_MISSILE_WEAPON:	423	case SK_MISSILE_WEAPON:
501	new_draw_info (NDI_UNIQUE, 0, op, "There is no special attack for this skill.");	424	new_draw_info (NDI_UNIQUE, 0, op, "There is no special attack for this skill.");
502	break;	425	break;
503		426
504	case SK_PRAYING:	427	case SK_PRAYING:
505	success = pray (op, skill);	428	success = pray (op, skill);
506	break;	429	break;
507		430
508	case SK_BARGAINING:	431	case SK_BARGAINING:
509	success = describe_shop (op);	432	success = describe_shop (op);
510	break;	433	break;
511		434
512	case SK_SORCERY:	435	case SK_SORCERY:
513	case SK_EVOCATION:	436	case SK_EVOCATION:
514	case SK_PYROMANCY:	437	case SK_PYROMANCY:
515	case SK_SUMMONING:	438	case SK_SUMMONING:
516	case SK_CLIMBING:	439	case SK_CLIMBING:
517	new_draw_info (NDI_UNIQUE, 0, op, "This skill is already in effect.");	440	new_draw_info (NDI_UNIQUE, 0, op, "This skill is already in effect.");
518	break;	441	break;
519		442
		443	case SK_MINING:
		444	success = skill_mining (op, part, skill, dir, string);
		445	break;
		446
520	default:	447	default:
521	LOG (llevDebug, "%s attempted to use unknown skill: %d\n", query_name (op), op->chosen_skill->stats.sp);	448	LOG (llevDebug, "%s attempted to use unknown skill: %d\n", query_name (op), op->chosen_skill->stats.sp);
522	break;	449	break;
523	}	450	}
524		451
525	/* For players we now update the speed_left from using the skill.	452	/* 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	453	* Monsters have no skill use time because of the random nature in
527	* which use_monster_skill is called already simulates this.	454	* which use_monster_skill is called already simulates this.
528	* If certain skills should take more/less time, that should be	455	* If certain skills should take more/less time, that should be
529	* in the code for the skill itself.	456	* in the code for the skill itself.
530	*/	457	*/
531
532	if (op->type == PLAYER)	458	if (op->type == PLAYER)
533	op->speed_left -= 1.0;	459	op->speed_left -= 1.f;
534		460
535	/* this is a good place to add experience for successfull use of skills.	461	/* this is a good place to add experience for successfull use of skills.
536	* Note that add_exp() will figure out player/monster experience	462	* Note that add_exp() will figure out player/monster experience
537	* gain problems.	463	* gain problems.
538	*/	464	*/
…		…
566	* op is the object that was 'defeated'.	492	* op is the object that was 'defeated'.
567	* skill is the skill used. If no skill is used, it should just	493	* skill is the skill used. If no skill is used, it should just
568	* point back to who.	494	* point back to who.
569	*	495	*
570	*/	496	*/
571
572	int	497	int
573	calc_skill_exp (object who, object op, object *skill)	498	calc_skill_exp (object who, object op, object *skill)
574	{	499	{
575	int op_exp = 0, op_lvl = 0;	500	int op_exp = 0, op_lvl = 0;
576	float base, value, lvl_mult = 0.0;	501	float base, value, lvl_mult = 0.0;
…		…
585	* If an object is not alive and magical we set the base exp higher to	510	* If an object is not alive and magical we set the base exp higher to
586	* help out exp awards for skill_ident skills. Also, if	511	* help out exp awards for skill_ident skills. Also, if
587	* an item is type RUNE, we give out exp based on stats.Cha	512	* an item is type RUNE, we give out exp based on stats.Cha
588	* and level (this was the old system) -b.t.	513	* and level (this was the old system) -b.t.
589	*/	514	*/
590
591	if (!op)	515	if (!op)
592	{ /* no item/creature */	516	{ /* no item/creature */
593	op_lvl = who->map->difficulty < 1 ? 1 : who->map->difficulty;	517	op_lvl = max (1, who->map->difficulty);
594	op_exp = 0;	518	op_exp = 0;
595	}	519	}
596	else if (op->type == RUNE \|\| op->type == TRAP)	520	else if (op->type == RUNE \|\| op->type == TRAP)
597	{ /* all traps. If stats.Cha > 1 we use that	521	{ /* all traps. If stats.Cha > 1 we use that
598	* for the amount of experience */	522	* for the amount of experience */
…		…
601	}	525	}
602	else	526	else
603	{ /* all other items/living creatures */	527	{ /* all other items/living creatures */
604	op_exp = op->stats.exp;	528	op_exp = op->stats.exp;
605	op_lvl = op->level;	529	op_lvl = op->level;
606	if (!QUERY_FLAG (op, FLAG_ALIVE))	530	if (!op->flag [FLAG_ALIVE])
607	{ /* for ident/make items */	531	op_lvl += 5 * abs (op->magic); /* for ident/make items */
608	op_lvl += 5 * abs (op->magic);
609	}
610	}	532	}
611		533
612	if (op_lvl < 1)	534	if (op_lvl < 1)
613	op_lvl = 1;	535	op_lvl = 1;
614		536
…		…
622	/* if skill really is a skill, then we can look at the skill archetype for	544	/* if skill really is a skill, then we can look at the skill archetype for
623	* bse reward value (exp) and level multiplier factor.	545	* bse reward value (exp) and level multiplier factor.
624	*/	546	*/
625	if (skill->type == SKILL)	547	if (skill->type == SKILL)
626	{	548	{
627	base += skill->arch->clone.stats.exp;	549	base += skill->arch->stats.exp;
628	if (settings.simple_exp)	550	if (settings.simple_exp)
629	{	551	{
630	if (skill->arch->clone.level)	552	if (skill->arch->level)
631	lvl_mult = (float) skill->arch->clone.level / 100.0;	553	lvl_mult = (float) skill->arch->level / 100.0;
632	else	554	else
633	lvl_mult = 1.0; /* no adjustment */	555	lvl_mult = 1.0; /* no adjustment */
634	}	556	}
635	else	557	else
636	{	558	{
637	if (skill->level)	559	if (skill->level)
638	lvl_mult = ((float) skill->arch->clone.level * (float) op_lvl) / ((float) skill->level * 100.0);	560	lvl_mult = ((float) skill->arch->level * (float) op_lvl) / ((float) skill->level * 100.0);
639	else	561	else
640	lvl_mult = 1.0;	562	lvl_mult = 1.0;
641	}	563	}
642	}	564	}
643	else	565	else
644	{	566	{
645	/* Don't divide by zero here! */	567	/* Don't divide by zero here! */
646	lvl_mult = (float) op_lvl / (float) (skill->level ? skill->level : 1);	568	lvl_mult = (float) op_lvl / (float) max (1, skill->level);
647	}	569	}
648	}	570	}
649		571
650	/* assemble the exp total, and return value */	572	/* assemble the exp total, and return value */
651		573
…		…
665	* This one actually teaches the player the skill as something	587	* This one actually teaches the player the skill as something
666	* they can equip.	588	* they can equip.
667	* Return 0 if the player knows the skill, 1 if the	589	* Return 0 if the player knows the skill, 1 if the
668	* player learns the skill, 2 otherwise.	590	* player learns the skill, 2 otherwise.
669	*/	591	*/
670
671	int	592	int
672	learn_skill (object pl, object scroll)	593	learn_skill (object pl, object scroll)
673	{	594	{
674	object *tmp;
675
676	if (!scroll->skill)	595	if (!scroll->skill)
677	{	596	{
678	LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name);	597	LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name);
679	return 2;	598	return 2;
680	}	599	}
681		600
682	/* can't use find_skill_by_name because we want skills the player knows	601	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		602
690	/* player already knows it */	603	/* player already knows it */
691	if (tmp && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL))	604	if (tmp && tmp->flag [FLAG_CAN_USE_SKILL])
692	return 0;	605	return 0;
693
694
695		606
696	/* now a random change to learn, based on player Int.	607	/* now a random change to learn, based on player Int.
697	* give bonus based on level - otherwise stupid characters	608	* give bonus based on level - otherwise stupid characters
698	* might never be able to learn anything.	609	* might never be able to learn anything.
699	*/	610	*/
…		…
707	{	618	{
708	LOG (llevError, "skill scroll %s does not have valid skill name (%s).\n", &scroll->name, &scroll->skill);	619	LOG (llevError, "skill scroll %s does not have valid skill name (%s).\n", &scroll->name, &scroll->skill);
709	return 2;	620	return 2;
710	}	621	}
711		622
712	SET_FLAG (tmp, FLAG_CAN_USE_SKILL);	623	tmp->set_flag (FLAG_CAN_USE_SKILL);
713	link_player_skills (pl);	624
714	return 1;	625	return 1;
715	}	626	}
716		627
717	/* Gives a percentage clipped to 0% -> 100% of a/b. */	628	/* Gives a percentage clipped to 0% -> 100% of a/b. */
718
719	/* Probably belongs in some global utils-type file? */	629	/* Probably belongs in some global utils-type file? */
720	static int	630	static int
721	clipped_percent (sint64 a, sint64 b)	631	clipped_percent (sint64 a, sint64 b)
722	{	632	{
723	int rv;	633	int rv;
…		…
743	* Note this function is a bit more complicated becauase we	653	* Note this function is a bit more complicated becauase we
744	* we want ot sort the skills before printing them. If we	654	* we want ot sort the skills before printing them. If we
745	* just dumped this as we found it, this would be a bit	655	* just dumped this as we found it, this would be a bit
746	* simpler.	656	* simpler.
747	*/	657	*/
748		658	//TODO: egad, do it in perl, do not suffer from the big buffer on stack, make it one single drawinfo.
749	void	659	void
750	show_skills (object op, const char search)	660	show_skills (object pl, const char search)
751	{	661	{
752	object *tmp = NULL;
753	char buf[MAX_BUF];
754	const char *cp;	662	const char *cp;
755	int i, num_skills_found = 0;	663	int i, num_skills_found = 0;
756	static const char *const periods = "........................................";	664	const char *const periods = ".............................."; // 30
757		665
758	/* Need to have a pointer and use strdup for qsort to work properly */	666	/* Need to have a pointer and use strdup for qsort to work properly */
759	char skills[NUM_SKILLS][MAX_BUF];	667	char skills[NUM_SKILLS][128]; // d'oh
760		668
		669	object *op = pl->contr->ob;
761		670
762	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	671	for (object *tmp = op->inv; tmp; tmp = tmp->below)
763	{	672	{
764	if (tmp->type == SKILL)	673	if (tmp->type == SKILL)
765	{	674	{
766	if (search && strstr (tmp->name, search) == NULL)	675	if (search && !tmp->name.contains (search))
767	continue;	676	continue;
		677
		678	char buf[30];
		679
768	/* Basically want to fill this out to 40 spaces with periods */	680	/* Basically want to fill this out to 30 spaces with periods */
769	sprintf (buf, "%s%s", &tmp->name, periods);	681	snprintf (buf, sizeof (buf), "%s%s", &tmp->name, periods);
770	buf[40] = 0;
771		682
772	if (settings.permanent_exp_ratio)	683	if (settings.permanent_exp_ratio)
773	{
774	sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%lld/%lld/%d%%)",	684	snprintf (skills[num_skills_found++], sizeof (skills [0]), "%slvl:%3d (xp:%" PRId64 "/%" PRId64 "/%d%%)",
775	buf, tmp->level,	685	buf, tmp->level, tmp->stats.exp,
776	(long long) tmp->stats.exp,
777	(long long) level_exp (tmp->level + 1, op->expmul), clipped_percent (tmp->perm_exp, tmp->stats.exp));	686	level_exp (tmp->level + 1, op->expmul), clipped_percent (tmp->perm_exp, tmp->stats.exp));
778	}
779	else	687	else
780	{
781	sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%lld/%lld)",	688	snprintf (skills[num_skills_found++], sizeof (skills [0]), "%slvl:%3d (xp:%" PRId64 "/%" PRId64 ")",
782	buf, tmp->level, (long long) tmp->stats.exp, (long long) level_exp (tmp->level + 1, op->expmul));	689	buf, tmp->level, tmp->stats.exp, level_exp (tmp->level + 1, op->expmul));
783	}	690
784	/* I don't know why some characters get a bunch of skills, but	691	/* I don't know why some characters get a bunch of skills, but
785	* it sometimes happens (maybe a leftover from bugier earlier code	692	* it sometimes happens (maybe a leftover from bugier earlier code
786	* and those character are still about). In any case, lets handle	693	* and those character are still about). In any case, lets handle
787	* it so it doesn't crash the server - otherwise, one character may	694	* it so it doesn't crash the server - otherwise, one character may
788	* crash the server numerous times.	695	* crash the server numerous times.
789	*/	696	*/
790	if (num_skills_found >= NUM_SKILLS)	697	if (num_skills_found >= NUM_SKILLS)
791	{	698	{
792	new_draw_info (NDI_RED, 0, op, "Your character has too many skills.");	699	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");	700	new_draw_info (NDI_RED \| NDI_REPLY, 0, op, "Something isn't right - contact the server admin");
794	break;	701	break;
795	}	702	}
796	}	703	}
797	}	704	}
798		705
799	clear_win_info (op);	706	dynbuf_text &msg = msg_dynbuf; msg.clear ();
800	new_draw_info (NDI_UNIQUE, 0, op, "Player skills:");	707
		708	msg << "T<Player skills:>\n\n";
801	if (num_skills_found > 1)	709	if (num_skills_found > 1)
802	qsort (skills, num_skills_found, MAX_BUF, (int ()(const void , const void *)) strcmp);	710	qsort (skills, num_skills_found, sizeof (skills [0]), (int ()(const void , const void *)) std::strcmp);
803		711
804	for (i = 0; i < num_skills_found; i++)	712	for (i = 0; i < num_skills_found; i++)
805	{	713	msg << " C<" << skills [i] << ">\n";
806	new_draw_info (NDI_UNIQUE, 0, op, skills[i]);
807	}
808		714
809	new_draw_info_format (NDI_UNIQUE, 0, op, "You can handle %d weapon improvements.", op->level / 5 + 5);	715	msg << "\nYou can handle " << op->level / 5 + 5 << " weapon improvements.\r";
810		716
811	cp = determine_god (op);	717	cp = determine_god (op);
812	new_draw_info_format (NDI_UNIQUE, 0, op, "You worship %s.", cp ? cp : "no god at current time");	718	msg << "You worship " << (cp ? cp : "no god at current time") << ".\r";
813		719
814	new_draw_info_format (NDI_UNIQUE, 0, op, "Your equipped item power is %d out of %d\n",	720	msg << "Your equipped item power is " << (int)op->contr->item_power
815	op->contr->item_power, (int) (op->level * settings.item_power_factor));	721	<< " out of " << int (op->level * settings.item_power_factor)
		722	<< ".\n";
		723
		724	pl->contr->infobox (MSG_CHANNEL ("skills"), msg);
816	}	725	}
817		726
818	/* use_skill() - similar to invoke command, it executes the skill in the	727	/* 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	728	* 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.	729	* 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	730	* 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.	731	* our own find_skill_by_name so we can try to do better string matching.
823	*/	732	*/
824
825	int	733	int
826	use_skill (object op, const char string)	734	use_skill (object op, const char string)
827	{	735	{
828	object *skop;	736	object *skop;
829	size_t len;	737	size_t len;
830		738
831	if (!string)	739	if (!string)
832	return 0;	740	return 0;
833		741
834	for (skop = op->inv; skop != NULL; skop = skop->below)	742	for (skop = op->inv; skop; skop = skop->below)
835	{	743	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))))	744	&& !strncmp (string, skop->skill, min (strlen (string), strlen (skop->skill))))
		745	{
		746	skop = find_skill_by_name (op, skop->skill);
838	break;	747	break;
839	else if (skop->type == SKILL_TOOL && !strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))
840	break;
841	}	748	}
		749
842	if (!skop)	750	if (!skop)
843	{	751	{
844	new_draw_info_format (NDI_UNIQUE, 0, op, "Unable to find skill %s", string);	752	op->failmsgf ("Unable to find skill %s.", string);
		753	return 0;
		754	}
		755
		756	if (!(skill_flags [skop->subtype] & SF_USE))
		757	{
		758	op->failmsgf (
		759	"You feel as if you wanted to do something funny, but you can't remember what. "
		760	"H<The %s skill cannot be C<use_skill>'ed - maybe you need to C<ready_skill> it, "
		761	"use it with some item, or it's always active.>",
		762	&skop->skill
		763	);
845	return 0;	764	return 0;
846	}	765	}
847		766
848	len = strlen (skop->skill);	767	len = strlen (skop->skill);
849		768
…		…
851	* options given to the skill. Its pretty simple - if there	770	* options given to the skill. Its pretty simple - if there
852	* are extra parameters (as deteremined by string length), we	771	* are extra parameters (as deteremined by string length), we
853	* want to skip over any leading spaces.	772	* want to skip over any leading spaces.
854	*/	773	*/
855	if (len >= strlen (string))	774	if (len >= strlen (string))
856	{
857	string = NULL;	775	string = NULL;
858	}
859	else	776	else
860	{	777	{
861	string += len;	778	string += len;
862	while (*string == 0x20)	779	while (*string == 0x20)
863	string++;	780	string++;
		781
864	if (strlen (string) == 0)	782	if (strlen (string) == 0)
865	string = NULL;	783	string = NULL;
866	}	784	}
867		785
868	#ifdef SKILL_UTIL_DEBUG	786	#ifdef SKILL_UTIL_DEBUG
869	LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none");	787	LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none");
870	#endif	788	#endif
871		789
872	/* Change to the new skill, then execute it. */
873	if (do_skill (op, op, skop, op->facing, string))	790	if (do_skill (op, op, skop, op->facing, string))
874	return 1;	791	return 1;
875		792
876	return 0;	793	return 0;
877	}	794	}
878		795
		796	static bool
		797	hth_skill_p (object *skill)
		798	{
		799	return (skill_flags [skill->subtype] & (SF_COMBAT \| SF_NEED_ITEM)) == SF_COMBAT;
		800	}
879		801
880
881	/* This finds the best unarmed skill the player has, and returns	802	/* 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	*/	803	*/
895	static object *	804	static object *
896	find_best_player_hth_skill (object *op)	805	find_player_hth_skill (object *op)
897	{	806	{
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)	807	for (object *tmp = op->inv; tmp; tmp = tmp->below)
902	{	808	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;	809	return tmp;
907		810
908	/* The order in the array is preferred order. So basically,	811	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	}	812	}
930		813
931	/* do_skill_attack() - We have got an appropriate opponent from either	814	/* 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	815	* 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.	816	* attacking, take care of messages from the attack and changes in invisible.
…		…
935	* tmp is the targetted monster.	818	* tmp is the targetted monster.
936	* op is what is attacking	819	* op is what is attacking
937	* string is passed along to describe what messages to describe	820	* string is passed along to describe what messages to describe
938	* the damage.	821	* the damage.
939	*/	822	*/
940
941	static int	823	static int
942	do_skill_attack (object tmp, object op, const char string, object skill)	824	do_skill_attack (object tmp, object op, const char string, object skill)
943	{	825	{
944	int success;
945
946	if (INVOKE_OBJECT (SKILL_ATTACK, op, ARG_OBJECT (tmp), ARG_STRING (string), ARG_OBJECT (skill)))	826	if (INVOKE_OBJECT (SKILL_ATTACK, op, ARG_OBJECT (tmp), ARG_STRING (string), ARG_OBJECT (skill)))
947	return RESULT_INT (0);	827	return RESULT_INT (0);
948		828
949	/* For Players only: if there is no ready weapon, and no "attack" skill	829	/* 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.	830	* 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,	831	* 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	832	* 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.	833	* through that code if skill is set to change to the skill.
954	*/	834	*/
955	if (op->type == PLAYER)	835	if (player *pl = op->contr)
956	{	836	{
957	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))	837	if (skill)
958	{	838	{
959	size_t i;
960
961	if (!skill)	839	if (!op->apply (skill))
		840	return 0;
		841	}
		842	else
		843	{
		844	if (!pl->combat_ob)
962	{	845	{
963	/* See if the players chosen skill is a combat skill, and use	846	if (op->flag [FLAG_READY_WEAPON])
964	* it if appropriate.
965	*/
966	if (op->chosen_skill)
967	{	847	{
968	for (i = 0; i < sizeof (unarmed_skills); i++)	848	for (tmp = op->inv; tmp; tmp = tmp->below)
969	if (op->chosen_skill->subtype == unarmed_skills[i])	849	if (tmp->type == WEAPON && tmp->flag [FLAG_APPLIED])
970	{
971	skill = op->chosen_skill;
972	break;	850	break;
973	}	851
		852	if (!tmp)
		853	LOG (llevError, "Could not find applied weapon on %s\n", &op->name);
		854
		855	pl->combat_ob = tmp;
974	}	856	}
975	/* If we didn't find a skill above, look harder for a good skill */	857
976	if (!skill)	858	if (!pl->combat_ob)
977	{	859	{
978	skill = find_best_player_hth_skill (op);	860	/* See if the players chosen skill is a combat skill, and use
979		861	* it if appropriate.
980	if (!skill)	862	*/
		863	if (op->chosen_skill && hth_skill_p (op->chosen_skill))
		864	skill = op->chosen_skill;
		865	else
981	{	866	{
		867	skill = find_player_hth_skill (op);
		868
		869	if (!skill)
982	new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!");	870	new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!");
983	return 0;
984	}	871	}
		872
		873	op->apply (skill);
985	}	874	}
986	}	875
987	if (skill != op->chosen_skill)	876	if (!pl->combat_ob)
988	{	877	{
989	/* now try to ready the new skill */	878	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;	879	return 0;
994	}	880	}
995	}	881	}
		882
		883	if (!op->apply (pl->combat_ob))
		884	return 0;
996	}	885	}
997	else	886
		887	/* lose invisiblity/hiding status for running attacks */
		888	if (pl->tmp_invis)
998	{	889	{
999	/* Seen some crashes below where current_weapon is not set,	890	pl->tmp_invis = 0;
1000	* even though the flag says it is. So if current weapon isn't set,	891	op->invisible = 0;
1001	* do some work in trying to find the object to use.	892	op->flag [FLAG_HIDDEN] = 0;
1002	*/	893	update_object (op, UP_OBJ_CHANGE);
1003	if (!op->current_weapon)
1004	{
1005	object *tmp;
1006
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;
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	}
1029	}	894	}
1030	}	895	}
1031		896
1032	/* lose invisiblity/hiding status for running attacks */
1033
1034	if (op->type == PLAYER && op->contr->tmp_invis)
1035	{
1036	op->contr->tmp_invis = 0;
1037	op->invisible = 0;
1038	op->hide = 0;
1039	update_object (op, UP_OBJ_FACE);
1040	}
1041
1042	success = attack_ob (tmp, op);	897	int success = attack_ob (tmp, op);
1043		898
1044	/* print appropriate messages to the player */	899	/* print appropriate messages to the player */
1045		900
1046	if (success && string != NULL && tmp && !QUERY_FLAG (tmp, FLAG_FREED))	901	if (success && string && tmp && !tmp->flag [FLAG_FREED])
1047	{	902	{
1048	if (op->type == PLAYER)	903	if (op->type == PLAYER)
1049	new_draw_info_format (NDI_UNIQUE, 0, op, "You %s %s!", string, query_name (tmp));	904	new_draw_info_format (NDI_UNIQUE, 0, op, "You %s %s!", string, query_name (tmp));
1050	else if (tmp->type == PLAYER)	905	else if (tmp->type == PLAYER)
1051	new_draw_info_format (NDI_UNIQUE, 0, tmp, "%s %s you!", query_name (op), string);	906	new_draw_info_format (NDI_UNIQUE, 0, tmp, "%s %s you!", query_name (op), string);
1052	}	907	}
		908
1053	return success;	909	return success;
1054	}	910	}
1055
1056		911
1057	/* skill_attack() - Core routine for use when we attack using a skills	912	/* skill_attack() - Core routine for use when we attack using a skills
1058	* system. In essence, this code handles	913	* system. In essence, this code handles
1059	* all skill-based attacks, ie hth, missile and melee weapons should be	914	* 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(),	915	* treated here. If an opponent is already supplied by move_player(),
1061	* we move right onto do_skill_attack(), otherwise we find if an	916	* we move right onto do_skill_attack(), otherwise we find if an
1062	* appropriate opponent exists.	917	* appropriate opponent exists.
1063	*	918	*
1064	* This is called by move_player() and attack_hth()	919	* This is called by move_player() and attack_hth()
1065	*	920	*
1066	* Initial implementation by -bt thomas@astro.psu.edu	921	* Initial implementation by -bt thomas@astro.psu.edu
1067	*/	922	*/
1068
1069	int	923	int
1070	skill_attack (object tmp, object pl, int dir, const char string, object skill)	924	skill_attack (object tmp, object pl, int dir, const char string, object skill)
1071	{	925	{
1072	sint16 tx, ty;	926	sint16 tx, ty;
1073	mapstruct *m;	927	maptile *m;
1074	int mflags;	928	int mflags;
1075		929
1076	if (!dir)	930	if (!dir)
1077	dir = pl->facing;	931	dir = pl->facing;
		932
1078	tx = freearr_x[dir];	933	tx = freearr_x[dir];
1079	ty = freearr_y[dir];	934	ty = freearr_y[dir];
1080		935
1081	/* If we don't yet have an opponent, find if one exists, and attack.	936	/* 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()	937	* Legal opponents are the same as outlined in move_player_attack()
1083	*/	938	*/
1084		939	if (!tmp)
1085	if (tmp == NULL)
1086	{	940	{
1087	m = pl->map;	941	m = pl->map;
1088	tx = pl->x + freearr_x[dir];	942	tx = pl->x + freearr_x[dir];
1089	ty = pl->y + freearr_y[dir];	943	ty = pl->y + freearr_y[dir];
1090		944
…		…
1094		948
1095	/* space must be blocked for there to be anything interesting to do */	949	/* 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)))	950	if (!OB_TYPE_MOVE_BLOCK (pl, GET_MAP_MOVE_BLOCK (m, tx, ty)))
1097	return 0;	951	return 0;
1098		952
1099	for (tmp = get_map_ob (m, tx, ty); tmp; tmp = tmp->above)	953	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)	954	if ((tmp->flag [FLAG_ALIVE] && tmp->stats.hp >= 0) \|\| tmp->flag [FLAG_CAN_ROLL] \|\| tmp->type == LOCKED_DOOR)
1101	{	955	{
1102	/* Don't attack party members */	956	/* Don't attack party members */
1103	if ((pl->type == PLAYER && tmp->type == PLAYER) && (pl->contr->party != NULL && pl->contr->party == tmp->contr->party))	957	if ((pl->type == PLAYER && tmp->type == PLAYER) && (pl->contr->party != NULL && pl->contr->party == tmp->contr->party))
1104	return 0;	958	return 0;
		959
1105	break;	960	break;
1106	}	961	}
1107	}	962	}
		963
1108	if (!tmp)	964	if (!tmp)
1109	{	965	{
1110	if (pl->type == PLAYER)	966	if (pl->type == PLAYER)
1111	new_draw_info (NDI_UNIQUE, 0, pl, "There is nothing to attack!");	967	new_draw_info (NDI_UNIQUE, 0, pl, "There is nothing to attack!");
		968
1112	return 0;	969	return 0;
1113	}	970	}
1114		971
1115	return do_skill_attack (tmp, pl, string, skill);	972	return do_skill_attack (tmp, pl, string, skill);
1116	}	973	}
1117
1118		974
1119	/* attack_hth() - this handles all hand-to-hand attacks -b.t. */	975	/* attack_hth() - this handles all hand-to-hand attacks -b.t. */
1120		976
1121	/* July 5, 1995 - I broke up attack_hth() into 2 parts. In the first	977	/* 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	978	* (attack_hth) we check for weapon use, etc in the second (the new
1123	* function skill_attack() we actually attack.	979	* function skill_attack() we actually attack.
1124	*/	980	*/
1125
1126	static int	981	static int
1127	attack_hth (object pl, int dir, const char string, object *skill)	982	attack_hth (object pl, int dir, const char string, object *skill)
1128	{	983	{
1129	object enemy = NULL, weapon;	984	object enemy = NULL, weapon;
1130		985
1131	if (QUERY_FLAG (pl, FLAG_READY_WEAPON))	986	if (pl->flag [FLAG_READY_WEAPON])
1132	for (weapon = pl->inv; weapon; weapon = weapon->below)	987	for (weapon = pl->inv; weapon; weapon = weapon->below)
1133	{	988	{
1134	if (weapon->type == WEAPON && QUERY_FLAG (weapon, FLAG_APPLIED))	989	if (weapon->type == WEAPON && weapon->flag [FLAG_APPLIED])
1135	{	990	{
1136	CLEAR_FLAG (weapon, FLAG_APPLIED);	991	weapon->clr_flag (FLAG_APPLIED);
1137	CLEAR_FLAG (pl, FLAG_READY_WEAPON);	992	pl->clr_flag (FLAG_READY_WEAPON);
1138	fix_player (pl);	993	pl->update_stats ();
1139	if (pl->type == PLAYER)	994	if (pl->type == PLAYER)
1140	{	995	{
1141	new_draw_info (NDI_UNIQUE, 0, pl, "You unwield your weapon in order to attack.");	996	new_draw_info (NDI_UNIQUE, 0, pl, "You unwield your weapon in order to attack.");
1142	esrv_update_item (UPD_FLAGS, pl, weapon);	997	esrv_update_item (UPD_FLAGS, pl, weapon);
1143	}	998	}
		999
1144	break;	1000	break;
1145	}	1001	}
1146	}	1002	}
		1003
1147	return skill_attack (enemy, pl, dir, string, skill);	1004	return skill_attack (enemy, pl, dir, string, skill);
1148	}	1005	}
1149
1150		1006
1151	/* attack_melee_weapon() - this handles melee weapon attacks -b.t.	1007	/* 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.	1008	* 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	1009	* But there is a real neato possible feature of this scheme which
1154	* bears mentioning:	1010	* bears mentioning:
1155	* Since we are only calling this from do_skill() in the future	1011	* Since we are only calling this from do_skill() in the future
1156	* we may make this routine handle 'special' melee weapons attacks	1012	* we may make this routine handle 'special' melee weapons attacks
1157	* (like disarming manuever with sai) based on player SK_level and	1013	* (like disarming manuever with sai) based on player SK_level and
1158	* weapon type.	1014	* weapon type.
1159	*/	1015	*/
1160
1161	static int	1016	static int
1162	attack_melee_weapon (object op, int dir, const char string, object *skill)	1017	attack_melee_weapon (object op, int dir, const char string, object *skill)
1163	{	1018	{
1164		1019
1165	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))	1020	if (!op->flag [FLAG_READY_WEAPON])
1166	{	1021	{
1167	if (op->type == PLAYER)	1022	if (op->type == PLAYER)
1168	new_draw_info (NDI_UNIQUE, 0, op, "You have no ready weapon to attack with!");	1023	new_draw_info (NDI_UNIQUE, 0, op, "You have no ready weapon to attack with!");
		1024
1169	return 0;	1025	return 0;
1170	}	1026	}
		1027
1171	return skill_attack (NULL, op, dir, string, skill);	1028	return skill_attack (NULL, op, dir, string, skill);
1172
1173	}	1029	}
		1030

Diff Legend

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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 1.96 by root, Wed Apr 14 22:35:41 2010 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 1.96 by root, Wed Apr 14 22:35:41 2010 UTC