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

Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.12 by root, Thu Sep 14 22:34:04 2006 UTC vs.
Revision 1.92 by root, Sat Apr 10 04:54:10 2010 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 (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copryight (C) 2002 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2002 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
6		7	*
7	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
8	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
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	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,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	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
18	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
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The author can be reached via e-mail to <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24	/* 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. */
25		26
26	/* Reconfigured skills code to allow linking of skills to experience	27	/* Reconfigured skills code to allow linking of skills to experience
27	* 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.
39		40
40	/* #define SKILL_UTIL_DEBUG */	41	/* #define SKILL_UTIL_DEBUG */
41		42
42	#include <global.h>	43	#include <global.h>
43	#include <object.h>	44	#include <object.h>
44	#ifndef __CEXTRACT__
45	# include <sproto.h>	45	#include <sproto.h>
46	#endif
47	#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. */
48	#include <spells.h>	47	#include <spells.h>
49		48
50	/* Table of unarmed attack skills. Terminated by -1. This	49	const uint8_t skill_flags[NUM_SKILLS] = {
51	* is also the list that we should try to use skills when	50	0, // SK_NONE
52	* automatically applying one for the player.	51	# define def(uc, flags) flags,
53	* Note it is hardcoded in the skill_util.c that dragons always	52	# include "skillinc.h"
54	* want clawing if possible.	53	# 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	};	54	};
67		55
68	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);
69	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);
70		58
71	/* init_skills basically just sets up the skill_names table	59	/* init_skills basically just sets up the skill_names table
72	* above. The index into the array is set up by the	60	* above. The index into the array is set up by the
73	* subtypes.	61	* subtypes.
74	*/	62	*/
75	void	63	void
76	init_skills (void)	64	init_skills ()
77	{	65	{
78	int i;	66	for_all_archetypes (at)
79	archetype *at;
80
81	for (at = first_archetype; at != NULL; at = at->next)
82	if (at->clone.type == SKILL)	67	if (at->type == SKILL)
83	{	68	{
84	if (skill_names[at->clone.subtype] != NULL)	69	if (skill_names[at->subtype])
85	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",
86	at->clone.subtype, &skill_names[at->clone.subtype], &at->clone.skill);	71	at->subtype, &skill_names[at->subtype], &at->skill);
87	else	72	else
88	skill_names[at->clone.subtype] = at->clone.skill;	73	skill_names[at->subtype] = at->skill;
89	}	74	}
90		75
91	/* 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
92	* checking for this may catch some user errors.	77	* checking for this may catch some user errors.
93	*/	78	*/
94	for (i = 1; i < NUM_SKILLS; i++)	79	for (int i = 1; i < NUM_SKILLS; i++)
95	{
96	if (!skill_names[i])	80	if (!skill_names[i])
97	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);
98	}
99	}	82	}
100
101		83
102	/* This function goes through the player inventory and sets	84	/* This function goes through the player inventory and sets
103	* up the last_skills[] array in the player object.	85	* up the last_skills[] array in the player object.
104	* the last_skills[] is used to more quickly lookup skills -	86	* the last_skills[] is used to more quickly lookup skills -
105	* mostly used for sending exp.	87	* mostly used for sending exp.
106	*/	88	*/
107	void	89	void
108	link_player_skills (object *op)	90	player::link_skills ()
109	{	91	{
110	object *tmp;	92	for (int i = 0; i < NUM_SKILLS; ++i)
		93	last_skill_ob [i] = 0;
111		94
112	for (tmp = op->inv; tmp; tmp = tmp->below)	95	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
113	{
114	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)
115	{	101	{
116	/* This is really a warning, hence no else below */	102	/* This is really a warning, hence no else below */
117	if (op->contr->last_skill_ob[tmp->subtype] && op->contr->last_skill_ob[tmp->subtype] != tmp)	103	if (last_skill_ob [tmp->subtype])
118	{
119	LOG (llevError, "Multiple skills with the same subtype? %s, %s\n",	104	LOG (llevError, "Multiple skills with the same subtype? %s, %s\n",
120	&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;
121	}	110	}
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	}	111	}
132	}	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 *player::find_skill (shstr_cmp name) const
		130	{
		131	// might want to use last_skill_obj at one point, or maybe not
		132	return ::find_skill (ob, name);
133	}	133	}
134		134
135	/* This returns the skill pointer of the given name (the	135	/* This returns the skill pointer of the given name (the
136	* one that accumlates exp, has the level, etc).	136	* one that accumulates exp, has the level, etc).
137	*	137	*
138	* It is presumed that the player will be needing to actually	138	* 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	139	* use the skill, so thus if use of the skill requires a skill
140	* tool, this code will equip it.	140	* tool, this code will equip it.
141	*/	141	*/
142	object *	142	object *
143	find_skill_by_name (object who, const char name)	143	find_skill_by_name (object *who, shstr_cmp sh)
144	{	144	{
145	object skill = NULL, skill_tool = NULL, *tmp;	145	object *skill_tool = 0;
146		146
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)	147	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		148	if (tmp->skill == sh)
155	{	149	{
156	if (tmp->type == SKILL && !strncasecmp (name, tmp->skill, strlen (name)) && (size_t) strlen (tmp->skill) >= strlen (name))	150	if (tmp->type == SKILL && (tmp->flag [FLAG_CAN_USE_SKILL] \|\| tmp->flag [FLAG_APPLIED]))
157	skill = tmp;	151	/* If this is a skill that can be used without applying tool, return it */
158		152	return splay (tmp);
159	/* Try to find appropriate skilltool. If the player has one already	153	/* Try to find appropriate skilltool. If the player has one already
160	* applied, we try to keep using that one.	154	* applied, we try to keep using that one.
161	*/	155	*/
162	else if (tmp->type == SKILL_TOOL && !strncasecmp (name, tmp->skill, strlen (name)) && (size_t) strlen (tmp->skill) >= strlen (name))	156	else if (tmp->type == SKILL_TOOL && !skill_tool)
163	{
164	if (QUERY_FLAG (tmp, FLAG_APPLIED))
165	skill_tool = tmp;	157	skill_tool = tmp;
166	else if (!skill_tool \|\| !QUERY_FLAG (skill_tool, FLAG_APPLIED))
167	skill_tool = tmp;
168	}	158	}
169	}	159
170	/* If this is a skill that can be used without a tool, return it */	160	if (!skill_tool)
171	if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))
172	return skill;	161	return 0;
173		162
174	/* Player has a tool to use the skill. IF not applied, apply it -	163	/* 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	164	* if not successful, return null. If they do have the skill tool
176	* but not the skill itself, give it to them.	165	* but not the skill itself, give it to them.
177	*/	166	*/
178	if (skill_tool)	167	object *skill = find_skill (who, skill_tool->skill);
179	{	168
180	if (!QUERY_FLAG (skill_tool, FLAG_APPLIED))
181	{
182	if (apply_special (who, skill_tool, 0))
183	return NULL;
184	}
185	if (!skill)	169	if (!skill)
186	{
187	skill = give_skill_by_name (who, skill_tool->skill);	170	skill = give_skill_by_name (who, skill_tool->skill);
188	link_player_skills (who);	171
189	}	172	if (!skill_tool->flag [FLAG_APPLIED])
		173	if (!who->apply (splay (skill_tool)))
190	return skill;	174	return 0;
191	}	175
		176	return splay (skill);
		177	}
		178
		179	object *
		180	find_skill_by_name_fuzzy (object who, const char name)
		181	{
		182	if (name)
		183	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		184	if ((tmp->type == SKILL \|\| tmp->type == SKILL_TOOL)
		185	&& tmp->skill.starts_with (name))
		186	if (object *skop = find_skill_by_name (who, tmp->skill))
		187	return skop;
		188
192	return NULL;	189	return 0;
193	}	190	}
194
195		191
196	/* This returns the skill pointer of the given name (the	192	/* This returns the skill pointer of the given name (the
197	* one that accumlates exp, has the level, etc).	193	* one that accumulates exp, has the level, etc).
198	*	194	*
199	* It is presumed that the player will be needing to actually	195	* 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	196	* use the skill, so thus if use of the skill requires a skill
201	* tool, this code will equip it.	197	* tool, this code will equip it.
202	*	198	*
…		…
205	* this replaces find_skill.	201	* this replaces find_skill.
206	*/	202	*/
207	object *	203	object *
208	find_skill_by_number (object *who, int skillno)	204	find_skill_by_number (object *who, int skillno)
209	{	205	{
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)	206	for (object *tmp = who->inv; tmp; tmp = tmp->below)
216	{
217	if (tmp->type == SKILL && tmp->subtype == skillno)	207	if (tmp->type == SKILL && tmp->subtype == skillno)
218	skill = tmp;	208	if (object *skop = find_skill_by_name (who, tmp->skill))
219
220	/* Try to find appropriate skilltool. If the player has one already
221	* applied, we try to keep using that one.
222	*/
223	else if (tmp->type == SKILL_TOOL && tmp->subtype == skillno)
224	{
225	if (QUERY_FLAG (tmp, FLAG_APPLIED))
226	skill_tool = tmp;
227	else if (!skill_tool \|\| !QUERY_FLAG (skill_tool, FLAG_APPLIED))
228	skill_tool = tmp;
229	}
230	}
231	/* If this is a skill that can be used without a tool, return it */
232	if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))
233	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;	209	return skop;
252	}	210
253	return NULL;	211	return 0;
254	}	212	}
255		213
256	/* This changes the objects skill to new_skill.	214	/* This changes the objects chosen_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	215	* return 1 on success, 0 on error
266	*/	216	*/
267		217	bool
268	int	218	object::change_skill (object *new_skill)
269	change_skill (object who, object new_skill, int flag)
270	{	219	{
271	int old_range;
272
273	if (who->type != PLAYER)	220	if (type != PLAYER)
274	return 0;	221	return 0;
275		222
276	old_range = who->contr->shoottype;	223	// optimise this supposedly common case
277		224	if (new_skill == chosen_skill)
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;	225	return 1;
284	}
285		226
286	if (!new_skill \|\| who->chosen_skill)
287	if (who->chosen_skill)	227	if (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	}	228	{
298	if (flag & 0x1)	229	chosen_skill->flag [FLAG_APPLIED] = false;
299	who->contr->shoottype = (rangetype) old_range;	230	change_abil (this, chosen_skill);
		231	}
300		232
		233	chosen_skill = new_skill;
		234
		235	if (chosen_skill)
		236	{
		237	chosen_skill->flag [FLAG_APPLIED] = true;
		238	change_abil (this, chosen_skill);
		239	}
		240
		241	// always clear current weapon, as the selected skill could
		242	// conflict with the current weapon skill, which would go
		243	// undetected and exp would be given to the wrong skill.
		244	current_weapon = 0;
		245
		246	update_stats ();
301	return 1;	247	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	}	248	}
319		249
320	/* do_skill() - Main skills use function-similar in scope to cast_spell().	250	/* 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.	251	* 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	252	* We require a separate routine outside of fire() so as to allow monsters
…		…
325	* exp - no caller needed that info, but it also prevented the callers	255	* 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	256	* from know if a skill was actually used, as many skills don't
327	* give any exp for their direct use (eg, throwing).	257	* give any exp for their direct use (eg, throwing).
328	* It returns 0 if no skill was used.	258	* It returns 0 if no skill was used.
329	*/	259	*/
330
331	int	260	int
332	do_skill (object op, object part, object skill, int dir, const char string)	261	do_skill (object op, object part, object skill, int dir, const char string)
333	{	262	{
334	int success = 0, exp = 0;	263	int success = 0, exp = 0;
335	int did_alc = 0;
336	object tmp, next;
337		264
338	if (!skill)	265	if (!skill)
339	return 0;	266	return 0;
340		267
341	/* The code below presumes that the skill points to the object that	268	/* 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	270	* 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.	271	* the player doesn't have a bucket for that, create one.
345	*/	272	*/
346	if (skill->type != SKILL && op->type == PLAYER)	273	if (skill->type != SKILL && op->type == PLAYER)
347	{	274	{
348	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	275	for (object *tmp = op->inv; tmp; tmp = tmp->below)
349	{
350	if (tmp->type == SKILL && tmp->skill == skill->skill)	276	if (tmp->type == SKILL && tmp->skill == skill->skill)
351	break;	277	{
		278	skill = tmp;
		279	goto found;
352	}	280	}
353	if (!tmp)	281
354	tmp = give_skill_by_name (op, skill->skill);	282	skill = give_skill_by_name (op, skill->skill);
355	skill = tmp;	283	found: ;
356	}	284	}
357		285
358	// skill, by_whom, on_which_object, which direction, skill_argument	286	// 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)))	287	if (INVOKE_OBJECT (USE_SKILL, skill, ARG_OBJECT (op), ARG_OBJECT (part), ARG_INT (dir), ARG_STRING (string)))
360	return 0;	288	return 0;
361		289
362	switch (skill->subtype)	290	switch (skill->subtype)
363	{	291	{
364	case SK_LEVITATION:	292	case SK_LEVITATION:
365	/* Not 100% sure if this will work with new movement code -	293	/* Not 100% sure if this will work with new movement code -
366	* the levitation skill has move_type for flying, so when	294	* the levitation skill has move_type for flying, so when
367	* equipped, that should transfer to player, when not,	295	* equipped, that should transfer to player, when not,
368	* shouldn't.	296	* shouldn't.
369	*/	297	*/
370	if (QUERY_FLAG (skill, FLAG_APPLIED))	298	if (QUERY_FLAG (skill, FLAG_APPLIED))
371	{	299	{
372	CLEAR_FLAG (skill, FLAG_APPLIED);	300	CLEAR_FLAG (skill, FLAG_APPLIED);
373	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");	301	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");
374	}	302	}
375	else	303	else
376	{	304	{
377	SET_FLAG (skill, FLAG_APPLIED);	305	SET_FLAG (skill, FLAG_APPLIED);
378	new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!.");	306	new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!");
379	}	307	}
380	fix_player (op);	308
		309	op->update_stats ();
381	success = 1;	310	success = 1;
382	break;	311	break;
383		312
384	case SK_STEALING:	313	case SK_STEALING:
385	exp = success = steal (op, dir, skill);	314	exp = success = steal (op, dir, skill);
386	break;	315	break;
387		316
388	case SK_LOCKPICKING:	317	case SK_LOCKPICKING:
389	exp = success = pick_lock (op, dir, skill);	318	exp = success = pick_lock (op, dir, skill);
390	break;	319	break;
391		320
392	case SK_HIDING:	321	case SK_HIDING:
393	exp = success = hide (op, skill);	322	exp = success = hide (op, skill);
394	break;	323	break;
395		324
396	case SK_JUMPING:	325	case SK_JUMPING:
397	success = jump (op, dir, skill);	326	exp = success = jump (op, dir, skill);
398	break;	327	break;
399		328
400	case SK_INSCRIPTION:	329	case SK_INSCRIPTION:
401	exp = success = write_on_item (op, string, skill);	330	exp = success = write_on_item (op, string, skill);
402	break;	331	break;
403		332
404	case SK_MEDITATION:	333	case SK_MEDITATION:
405	meditate (op, skill);	334	meditate (op, skill);
406	success = 1;	335	success = 1;
407	break;	336	break;
408	/* note that the following 'attack' skills gain exp through hit_player() */	337	/* note that the following 'attack' skills gain exp through hit_player() */
409		338
410	case SK_KARATE:	339	case SK_KARATE:
411	(void) attack_hth (op, dir, "karate-chopped", skill);	340	attack_hth (op, dir, "karate-chopped", skill);
412	break;	341	break;
413		342
414	case SK_PUNCHING:	343	case SK_PUNCHING:
415	(void) attack_hth (op, dir, "punched", skill);	344	attack_hth (op, dir, "punched", skill);
416	break;	345	break;
417		346
418	case SK_FLAME_TOUCH:	347	case SK_FLAME_TOUCH:
419	(void) attack_hth (op, dir, "flamed", skill);	348	attack_hth (op, dir, "flamed", skill);
420	break;	349	break;
421		350
422	case SK_SPARK_TOUCH:	351	case SK_SPARK_TOUCH:
423	(void) attack_hth (op, dir, "zapped", skill);	352	attack_hth (op, dir, "zapped", skill);
424	break;	353	break;
425		354
426	case SK_SHIVER:	355	case SK_SHIVER:
427	(void) attack_hth (op, dir, "froze", skill);	356	attack_hth (op, dir, "froze", skill);
428	break;	357	break;
429		358
430	case SK_ACID_SPLASH:	359	case SK_ACID_SPLASH:
431	(void) attack_hth (op, dir, "dissolved", skill);	360	attack_hth (op, dir, "dissolved", skill);
432	break;	361	break;
433		362
434	case SK_POISON_NAIL:	363	case SK_POISON_NAIL:
435	(void) attack_hth (op, dir, "injected poison into", skill);	364	attack_hth (op, dir, "injected poison into", skill);
436	break;	365	break;
437		366
438	case SK_CLAWING:	367	case SK_CLAWING:
439	(void) attack_hth (op, dir, "clawed", skill);	368	attack_hth (op, dir, "clawed", skill);
440	break;	369	break;
441		370
442	case SK_ONE_HANDED_WEAPON:	371	case SK_ONE_HANDED_WEAPON:
443	case SK_TWO_HANDED_WEAPON:	372	case SK_TWO_HANDED_WEAPON:
444	(void) attack_melee_weapon (op, dir, NULL, skill);	373	attack_melee_weapon (op, dir, NULL, skill);
445	break;	374	break;
446		375
447	case SK_FIND_TRAPS:	376	case SK_FIND_TRAPS:
448	exp = success = find_traps (op, skill);	377	exp = success = find_traps (op, skill);
449	break;	378	break;
450		379
451	case SK_SINGING:	380	case SK_SINGING:
452	exp = success = singing (op, dir, skill);	381	exp = success = singing (op, dir, skill);
453	break;	382	break;
454		383
455	case SK_ORATORY:	384	case SK_ORATORY:
456	exp = success = use_oratory (op, dir, skill);	385	exp = success = use_oratory (op, dir, skill);
457	break;	386	break;
458		387
459	case SK_SMITHERY:	388	case SK_SMITHERY:
460	case SK_BOWYER:	389	case SK_BOWYER:
461	case SK_JEWELER:	390	case SK_JEWELER:
462	case SK_ALCHEMY:	391	case SK_ALCHEMY:
463	case SK_THAUMATURGY:	392	case SK_THAUMATURGY:
464	case SK_LITERACY:	393	case SK_LITERACY:
465	case SK_WOODSMAN:	394	case SK_WOODSMAN:
466	/* first, we try to find a cauldron, and do the alchemy thing.	395	/* first, we try to find a cauldron, and do the alchemy thing.
467	* failing that, we go and identify stuff.	396	* failing that, we go and identify stuff.
468	*/	397	*/
		398	{
		399	bool found_cauldron = false;
		400
469	for (tmp = get_map_ob (op->map, op->x, op->y); tmp != NULL; tmp = next)	401	for (object next, tmp = GET_MAP_OB (op->map, op->x, op->y); tmp; tmp = next)
470	{	402	{
471	next = tmp->above;	403	next = tmp->above;
		404
472	if (QUERY_FLAG (tmp, FLAG_IS_CAULDRON))	405	if (QUERY_FLAG (tmp, FLAG_IS_CAULDRON))
473	{	406	{
		407	found_cauldron = true;
		408
		409	if (tmp->skill != skill->skill)
		410	{
		411	op->failmsgf ("You can't use the %s with the %s skill!",
		412	query_name (tmp),
		413	query_name (skill));
		414	break;
		415	}
		416
474	attempt_do_alchemy (op, tmp);	417	attempt_do_alchemy (op, tmp, skill);
		418
475	if (QUERY_FLAG (tmp, FLAG_APPLIED))	419	if (QUERY_FLAG (tmp, FLAG_APPLIED))
476	esrv_send_inventory (op, tmp);	420	esrv_send_inventory (op, tmp);
477	did_alc = 1;
478	}	421	}
479	}	422	}
480	if (did_alc == 0)	423
		424	if (!found_cauldron)
481	exp = success = skill_ident (op, skill);	425	exp = success = skill_ident (op, skill);
		426	}
482	break;	427	break;
483		428
484	case SK_DET_MAGIC:	429	case SK_DET_MAGIC:
485	case SK_DET_CURSE:	430	case SK_DET_CURSE:
486	exp = success = skill_ident (op, skill);	431	exp = success = skill_ident (op, skill);
487	break;	432	break;
488		433
489	case SK_DISARM_TRAPS:	434	case SK_DISARM_TRAPS:
490	exp = success = remove_trap (op, dir, skill);	435	exp = success = remove_trap (op, dir, skill);
491	break;	436	break;
492		437
493	case SK_THROWING:	438	case SK_THROWING:
494	success = skill_throw (op, part, dir, string, skill);	439	success = skill_throw (op, part, dir, string, skill);
495	break;	440	break;
496		441
497	case SK_SET_TRAP:	442	case SK_SET_TRAP:
498	new_draw_info (NDI_UNIQUE, 0, op, "This skill is not currently implemented.");	443	new_draw_info (NDI_UNIQUE, 0, op, "This skill is not currently implemented.");
499	break;	444	break;
500		445
501	case SK_USE_MAGIC_ITEM:	446	case SK_USE_MAGIC_ITEM:
502	case SK_MISSILE_WEAPON:	447	case SK_MISSILE_WEAPON:
503	new_draw_info (NDI_UNIQUE, 0, op, "There is no special attack for this skill.");	448	new_draw_info (NDI_UNIQUE, 0, op, "There is no special attack for this skill.");
504	break;	449	break;
505		450
506	case SK_PRAYING:	451	case SK_PRAYING:
507	success = pray (op, skill);	452	success = pray (op, skill);
508	break;	453	break;
509		454
510	case SK_BARGAINING:	455	case SK_BARGAINING:
511	success = describe_shop (op);	456	success = describe_shop (op);
512	break;	457	break;
513		458
514	case SK_SORCERY:	459	case SK_SORCERY:
515	case SK_EVOCATION:	460	case SK_EVOCATION:
516	case SK_PYROMANCY:	461	case SK_PYROMANCY:
517	case SK_SUMMONING:	462	case SK_SUMMONING:
518	case SK_CLIMBING:	463	case SK_CLIMBING:
519	new_draw_info (NDI_UNIQUE, 0, op, "This skill is already in effect.");	464	new_draw_info (NDI_UNIQUE, 0, op, "This skill is already in effect.");
520	break;	465	break;
521		466
		467	case SK_MINING:
		468	success = skill_mining (op, part, skill, dir, string);
		469	break;
		470
		471	case SK_FISHING:
		472	success = skill_fishing (op, part, skill, dir, string);
		473	break;
		474
522	default:	475	default:
523	LOG (llevDebug, "%s attempted to use unknown skill: %d\n", query_name (op), op->chosen_skill->stats.sp);	476	LOG (llevDebug, "%s attempted to use unknown skill: %d\n", query_name (op), op->chosen_skill->stats.sp);
524	break;	477	break;
525	}	478	}
526		479
527	/* For players we now update the speed_left from using the skill.	480	/* 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	481	* Monsters have no skill use time because of the random nature in
529	* which use_monster_skill is called already simulates this.	482	* which use_monster_skill is called already simulates this.
530	* If certain skills should take more/less time, that should be	483	* If certain skills should take more/less time, that should be
531	* in the code for the skill itself.	484	* in the code for the skill itself.
532	*/	485	*/
533
534	if (op->type == PLAYER)	486	if (op->type == PLAYER)
535	op->speed_left -= 1.0;	487	op->speed_left -= 1.f;
536		488
537	/* this is a good place to add experience for successfull use of skills.	489	/* this is a good place to add experience for successfull use of skills.
538	* Note that add_exp() will figure out player/monster experience	490	* Note that add_exp() will figure out player/monster experience
539	* gain problems.	491	* gain problems.
540	*/	492	*/
…		…
568	* op is the object that was 'defeated'.	520	* op is the object that was 'defeated'.
569	* skill is the skill used. If no skill is used, it should just	521	* skill is the skill used. If no skill is used, it should just
570	* point back to who.	522	* point back to who.
571	*	523	*
572	*/	524	*/
573
574	int	525	int
575	calc_skill_exp (object who, object op, object *skill)	526	calc_skill_exp (object who, object op, object *skill)
576	{	527	{
577	int op_exp = 0, op_lvl = 0;	528	int op_exp = 0, op_lvl = 0;
578	float base, value, lvl_mult = 0.0;	529	float base, value, lvl_mult = 0.0;
…		…
587	* If an object is not alive and magical we set the base exp higher to	538	* 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	539	* help out exp awards for skill_ident skills. Also, if
589	* an item is type RUNE, we give out exp based on stats.Cha	540	* an item is type RUNE, we give out exp based on stats.Cha
590	* and level (this was the old system) -b.t.	541	* and level (this was the old system) -b.t.
591	*/	542	*/
592
593	if (!op)	543	if (!op)
594	{ /* no item/creature */	544	{ /* no item/creature */
595	op_lvl = who->map->difficulty < 1 ? 1 : who->map->difficulty;	545	op_lvl = max (1, who->map->difficulty);
596	op_exp = 0;	546	op_exp = 0;
597	}	547	}
598	else if (op->type == RUNE \|\| op->type == TRAP)	548	else if (op->type == RUNE \|\| op->type == TRAP)
599	{ /* all traps. If stats.Cha > 1 we use that	549	{ /* all traps. If stats.Cha > 1 we use that
600	* for the amount of experience */	550	* for the amount of experience */
…		…
604	else	554	else
605	{ /* all other items/living creatures */	555	{ /* all other items/living creatures */
606	op_exp = op->stats.exp;	556	op_exp = op->stats.exp;
607	op_lvl = op->level;	557	op_lvl = op->level;
608	if (!QUERY_FLAG (op, FLAG_ALIVE))	558	if (!QUERY_FLAG (op, FLAG_ALIVE))
609	{ /* for ident/make items */	559	op_lvl += 5 * abs (op->magic); /* for ident/make items */
610	op_lvl += 5 * abs (op->magic);
611	}
612	}	560	}
613		561
614	if (op_lvl < 1)	562	if (op_lvl < 1)
615	op_lvl = 1;	563	op_lvl = 1;
616		564
…		…
624	/* if skill really is a skill, then we can look at the skill archetype for	572	/* if skill really is a skill, then we can look at the skill archetype for
625	* bse reward value (exp) and level multiplier factor.	573	* bse reward value (exp) and level multiplier factor.
626	*/	574	*/
627	if (skill->type == SKILL)	575	if (skill->type == SKILL)
628	{	576	{
629	base += skill->arch->clone.stats.exp;	577	base += skill->arch->stats.exp;
630	if (settings.simple_exp)	578	if (settings.simple_exp)
631	{	579	{
632	if (skill->arch->clone.level)	580	if (skill->arch->level)
633	lvl_mult = (float) skill->arch->clone.level / 100.0;	581	lvl_mult = (float) skill->arch->level / 100.0;
634	else	582	else
635	lvl_mult = 1.0; /* no adjustment */	583	lvl_mult = 1.0; /* no adjustment */
636	}	584	}
637	else	585	else
638	{	586	{
639	if (skill->level)	587	if (skill->level)
640	lvl_mult = ((float) skill->arch->clone.level * (float) op_lvl) / ((float) skill->level * 100.0);	588	lvl_mult = ((float) skill->arch->level * (float) op_lvl) / ((float) skill->level * 100.0);
641	else	589	else
642	lvl_mult = 1.0;	590	lvl_mult = 1.0;
643	}	591	}
644	}	592	}
645	else	593	else
646	{	594	{
647	/* Don't divide by zero here! */	595	/* Don't divide by zero here! */
648	lvl_mult = (float) op_lvl / (float) (skill->level ? skill->level : 1);	596	lvl_mult = (float) op_lvl / (float) max (1, skill->level);
649	}	597	}
650	}	598	}
651		599
652	/* assemble the exp total, and return value */	600	/* assemble the exp total, and return value */
653		601
…		…
667	* This one actually teaches the player the skill as something	615	* This one actually teaches the player the skill as something
668	* they can equip.	616	* they can equip.
669	* Return 0 if the player knows the skill, 1 if the	617	* Return 0 if the player knows the skill, 1 if the
670	* player learns the skill, 2 otherwise.	618	* player learns the skill, 2 otherwise.
671	*/	619	*/
672
673	int	620	int
674	learn_skill (object pl, object scroll)	621	learn_skill (object pl, object scroll)
675	{	622	{
676	object *tmp;
677
678	if (!scroll->skill)	623	if (!scroll->skill)
679	{	624	{
680	LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name);	625	LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name);
681	return 2;	626	return 2;
682	}	627	}
683		628
684	/* can't use find_skill_by_name because we want skills the player knows	629	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		630
692	/* player already knows it */	631	/* player already knows it */
693	if (tmp && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL))	632	if (tmp && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL))
694	return 0;	633	return 0;
695
696
697		634
698	/* now a random change to learn, based on player Int.	635	/* now a random change to learn, based on player Int.
699	* give bonus based on level - otherwise stupid characters	636	* give bonus based on level - otherwise stupid characters
700	* might never be able to learn anything.	637	* might never be able to learn anything.
701	*/	638	*/
…		…
710	LOG (llevError, "skill scroll %s does not have valid skill name (%s).\n", &scroll->name, &scroll->skill);	647	LOG (llevError, "skill scroll %s does not have valid skill name (%s).\n", &scroll->name, &scroll->skill);
711	return 2;	648	return 2;
712	}	649	}
713		650
714	SET_FLAG (tmp, FLAG_CAN_USE_SKILL);	651	SET_FLAG (tmp, FLAG_CAN_USE_SKILL);
715	link_player_skills (pl);	652
716	return 1;	653	return 1;
717	}	654	}
718		655
719	/* Gives a percentage clipped to 0% -> 100% of a/b. */	656	/* Gives a percentage clipped to 0% -> 100% of a/b. */
720
721	/* Probably belongs in some global utils-type file? */	657	/* Probably belongs in some global utils-type file? */
722	static int	658	static int
723	clipped_percent (sint64 a, sint64 b)	659	clipped_percent (sint64 a, sint64 b)
724	{	660	{
725	int rv;	661	int rv;
…		…
745	* Note this function is a bit more complicated becauase we	681	* Note this function is a bit more complicated becauase we
746	* we want ot sort the skills before printing them. If we	682	* we want ot sort the skills before printing them. If we
747	* just dumped this as we found it, this would be a bit	683	* just dumped this as we found it, this would be a bit
748	* simpler.	684	* simpler.
749	*/	685	*/
750		686	//TODO: egad, do it in perl, do not suffer from the big buffer on stack, make it one single drawinfo.
751	void	687	void
752	show_skills (object op, const char search)	688	show_skills (object pl, const char search)
753	{	689	{
754	object *tmp = NULL;
755	char buf[MAX_BUF];
756	const char *cp;	690	const char *cp;
757	int i, num_skills_found = 0;	691	int i, num_skills_found = 0;
758	static const char *const periods = "........................................";	692	const char *const periods = ".............................."; // 30
759		693
760	/* Need to have a pointer and use strdup for qsort to work properly */	694	/* Need to have a pointer and use strdup for qsort to work properly */
761	char skills[NUM_SKILLS][MAX_BUF];	695	char skills[NUM_SKILLS][128]; // d'oh
762		696
		697	object *op = pl->contr->ob;
763		698
764	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	699	for (object *tmp = op->inv; tmp; tmp = tmp->below)
765	{	700	{
766	if (tmp->type == SKILL)	701	if (tmp->type == SKILL)
767	{	702	{
768	if (search && strstr (tmp->name, search) == NULL)	703	if (search && !tmp->name.contains (search))
769	continue;	704	continue;
		705
		706	char buf[30];
		707
770	/* Basically want to fill this out to 40 spaces with periods */	708	/* Basically want to fill this out to 30 spaces with periods */
771	sprintf (buf, "%s%s", &tmp->name, periods);	709	snprintf (buf, sizeof (buf), "%s%s", &tmp->name, periods);
772	buf[40] = 0;
773		710
774	if (settings.permanent_exp_ratio)	711	if (settings.permanent_exp_ratio)
775	{
776	sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%lld/%lld/%d%%)",	712	snprintf (skills[num_skills_found++], sizeof (skills [0]), "%slvl:%3d (xp:%" PRId64 "/%" PRId64 "/%d%%)",
777	buf, tmp->level,	713	buf, tmp->level, tmp->stats.exp,
778	(long long) tmp->stats.exp,
779	(long long) level_exp (tmp->level + 1, op->expmul), clipped_percent (tmp->perm_exp, tmp->stats.exp));	714	level_exp (tmp->level + 1, op->expmul), clipped_percent (tmp->perm_exp, tmp->stats.exp));
780	}
781	else	715	else
782	{
783	sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%lld/%lld)",	716	snprintf (skills[num_skills_found++], sizeof (skills [0]), "%slvl:%3d (xp:%" PRId64 "/%" PRId64 ")",
784	buf, tmp->level, (long long) tmp->stats.exp, (long long) level_exp (tmp->level + 1, op->expmul));	717	buf, tmp->level, tmp->stats.exp, level_exp (tmp->level + 1, op->expmul));
785	}	718
786	/* I don't know why some characters get a bunch of skills, but	719	/* I don't know why some characters get a bunch of skills, but
787	* it sometimes happens (maybe a leftover from bugier earlier code	720	* it sometimes happens (maybe a leftover from bugier earlier code
788	* and those character are still about). In any case, lets handle	721	* and those character are still about). In any case, lets handle
789	* it so it doesn't crash the server - otherwise, one character may	722	* it so it doesn't crash the server - otherwise, one character may
790	* crash the server numerous times.	723	* crash the server numerous times.
791	*/	724	*/
792	if (num_skills_found >= NUM_SKILLS)	725	if (num_skills_found >= NUM_SKILLS)
793	{	726	{
794	new_draw_info (NDI_RED, 0, op, "Your character has too many skills.");	727	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");	728	new_draw_info (NDI_RED \| NDI_REPLY, 0, op, "Something isn't right - contact the server admin");
796	break;	729	break;
797	}	730	}
798	}	731	}
799	}	732	}
800		733
801	clear_win_info (op);	734	dynbuf_text &msg = msg_dynbuf; msg.clear ();
802	new_draw_info (NDI_UNIQUE, 0, op, "Player skills:");	735
		736	msg << "T<Player skills:>\n\n";
803	if (num_skills_found > 1)	737	if (num_skills_found > 1)
804	qsort (skills, num_skills_found, MAX_BUF, (int ()(const void , const void *)) strcmp);	738	qsort (skills, num_skills_found, sizeof (skills [0]), (int ()(const void , const void *)) std::strcmp);
805		739
806	for (i = 0; i < num_skills_found; i++)	740	for (i = 0; i < num_skills_found; i++)
807	{	741	msg << " C<" << skills [i] << ">\n";
808	new_draw_info (NDI_UNIQUE, 0, op, skills[i]);
809	}
810		742
811	new_draw_info_format (NDI_UNIQUE, 0, op, "You can handle %d weapon improvements.", op->level / 5 + 5);	743	msg << "\nYou can handle " << op->level / 5 + 5 << " weapon improvements.\r";
812		744
813	cp = determine_god (op);	745	cp = determine_god (op);
814	new_draw_info_format (NDI_UNIQUE, 0, op, "You worship %s.", cp ? cp : "no god at current time");	746	msg << "You worship " << (cp ? cp : "no god at current time") << ".\r";
815		747
816	new_draw_info_format (NDI_UNIQUE, 0, op, "Your equipped item power is %d out of %d\n",	748	msg << "Your equipped item power is " << (int)op->contr->item_power
817	op->contr->item_power, (int) (op->level * settings.item_power_factor));	749	<< " out of " << int (op->level * settings.item_power_factor)
		750	<< ".\n";
		751
		752	pl->contr->infobox (MSG_CHANNEL ("skills"), msg);
818	}	753	}
819		754
820	/* use_skill() - similar to invoke command, it executes the skill in the	755	/* 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	756	* 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.	757	* 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	758	* 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.	759	* our own find_skill_by_name so we can try to do better string matching.
825	*/	760	*/
826
827	int	761	int
828	use_skill (object op, const char string)	762	use_skill (object op, const char string)
829	{	763	{
830	object *skop;	764	object *skop;
831	size_t len;	765	size_t len;
832		766
833	if (!string)	767	if (!string)
834	return 0;	768	return 0;
835		769
836	for (skop = op->inv; skop != NULL; skop = skop->below)	770	for (skop = op->inv; skop; skop = skop->below)
837	{	771	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))))	772	&& !strncmp (string, skop->skill, min (strlen (string), strlen (skop->skill))))
		773	{
		774	skop = find_skill_by_name (op, skop->skill);
840	break;	775	break;
841	else if (skop->type == SKILL_TOOL && !strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))
842	break;
843	}	776	}
		777
844	if (!skop)	778	if (!skop)
845	{	779	{
846	new_draw_info_format (NDI_UNIQUE, 0, op, "Unable to find skill %s", string);	780	op->failmsgf ("Unable to find skill %s.", string);
		781	return 0;
		782	}
		783
		784	if (!(skill_flags [skop->subtype] & SF_USE))
		785	{
		786	op->failmsgf (
		787	"You feel as if you wanted to do something funny, but you can't remember what. "
		788	"H<The %s skill cannot be C<use_skill>'ed - maybe you need to C<ready_skill> it, "
		789	"use it with some item, or it's always active.>",
		790	&skop->skill
		791	);
847	return 0;	792	return 0;
848	}	793	}
849		794
850	len = strlen (skop->skill);	795	len = strlen (skop->skill);
851		796
…		…
853	* options given to the skill. Its pretty simple - if there	798	* options given to the skill. Its pretty simple - if there
854	* are extra parameters (as deteremined by string length), we	799	* are extra parameters (as deteremined by string length), we
855	* want to skip over any leading spaces.	800	* want to skip over any leading spaces.
856	*/	801	*/
857	if (len >= strlen (string))	802	if (len >= strlen (string))
858	{
859	string = NULL;	803	string = NULL;
860	}
861	else	804	else
862	{	805	{
863	string += len;	806	string += len;
864	while (*string == 0x20)	807	while (*string == 0x20)
865	string++;	808	string++;
		809
866	if (strlen (string) == 0)	810	if (strlen (string) == 0)
867	string = NULL;	811	string = NULL;
868	}	812	}
869		813
870	#ifdef SKILL_UTIL_DEBUG	814	#ifdef SKILL_UTIL_DEBUG
871	LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none");	815	LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none");
872	#endif	816	#endif
873		817
874	/* Change to the new skill, then execute it. */
875	if (do_skill (op, op, skop, op->facing, string))	818	if (do_skill (op, op, skop, op->facing, string))
876	return 1;	819	return 1;
877		820
878	return 0;	821	return 0;
879	}	822	}
880		823
		824	static bool
		825	hth_skill_p (object *skill)
		826	{
		827	return (skill_flags [skill->subtype] & (SF_COMBAT \| SF_NEED_ITEM)) == SF_COMBAT;
		828	}
881		829
882
883	/* This finds the best unarmed skill the player has, and returns	830	/* 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	*/	831	*/
897	static object *	832	static object *
898	find_best_player_hth_skill (object *op)	833	find_player_hth_skill (object *op)
899	{	834	{
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)	835	for (object *tmp = op->inv; tmp; tmp = tmp->below)
904	{	836	if (tmp->type == SKILL && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL) && hth_skill_p (tmp))
905	if (tmp->type == SKILL)
906	{
907	if (dragon && tmp->subtype == SK_CLAWING)
908	return tmp;	837	return tmp;
909		838
910	/* The order in the array is preferred order. So basically,	839	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	}	840	}
932		841
933	/* do_skill_attack() - We have got an appropriate opponent from either	842	/* 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	843	* 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.	844	* attacking, take care of messages from the attack and changes in invisible.
…		…
937	* tmp is the targetted monster.	846	* tmp is the targetted monster.
938	* op is what is attacking	847	* op is what is attacking
939	* string is passed along to describe what messages to describe	848	* string is passed along to describe what messages to describe
940	* the damage.	849	* the damage.
941	*/	850	*/
942
943	static int	851	static int
944	do_skill_attack (object tmp, object op, const char string, object skill)	852	do_skill_attack (object tmp, object op, const char string, object skill)
945	{	853	{
946	int success;
947
948	if (INVOKE_OBJECT (SKILL_ATTACK, op, ARG_OBJECT (tmp), ARG_STRING (string), ARG_OBJECT (skill)))	854	if (INVOKE_OBJECT (SKILL_ATTACK, op, ARG_OBJECT (tmp), ARG_STRING (string), ARG_OBJECT (skill)))
949	return RESULT_INT (0);	855	return RESULT_INT (0);
950		856
951	/* For Players only: if there is no ready weapon, and no "attack" skill	857	/* 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.	858	* 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,	859	* 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	860	* 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.	861	* through that code if skill is set to change to the skill.
956	*/	862	*/
957	if (op->type == PLAYER)	863	if (player *pl = op->contr)
958	{	864	{
959	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))	865	if (skill)
960	{	866	{
961	size_t i;
962
963	if (!skill)	867	if (!op->apply (skill))
		868	return 0;
		869	}
		870	else
		871	{
		872	if (!pl->combat_ob)
964	{	873	{
965	/* See if the players chosen skill is a combat skill, and use	874	if (QUERY_FLAG (op, FLAG_READY_WEAPON))
966	* it if appropriate.
967	*/
968	if (op->chosen_skill)
969	{	875	{
970	for (i = 0; i < sizeof (unarmed_skills); i++)	876	for (tmp = op->inv; tmp; tmp = tmp->below)
971	if (op->chosen_skill->subtype == unarmed_skills[i])	877	if (tmp->type == WEAPON && QUERY_FLAG (tmp, FLAG_APPLIED))
972	{
973	skill = op->chosen_skill;
974	break;	878	break;
975	}	879
		880	if (!tmp)
		881	LOG (llevError, "Could not find applied weapon on %s\n", &op->name);
		882
		883	pl->combat_ob = tmp;
976	}	884	}
977	/* If we didn't find a skill above, look harder for a good skill */	885
978	if (!skill)	886	if (!pl->combat_ob)
979	{	887	{
980	skill = find_best_player_hth_skill (op);	888	/* See if the players chosen skill is a combat skill, and use
981		889	* it if appropriate.
982	if (!skill)	890	*/
		891	if (op->chosen_skill && hth_skill_p (op->chosen_skill))
		892	skill = op->chosen_skill;
		893	else
983	{	894	{
		895	skill = find_player_hth_skill (op);
		896
		897	if (!skill)
984	new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!");	898	new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!");
985	return 0;
986	}	899	}
		900
		901	op->apply (skill);
987	}	902	}
988	}	903
989	if (skill != op->chosen_skill)	904	if (!pl->combat_ob)
990	{	905	{
991	/* now try to ready the new skill */	906	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;	907	return 0;
996	}	908	}
997	}	909	}
		910
		911	if (!op->apply (pl->combat_ob))
		912	return 0;
998	}	913	}
999	else	914
		915	/* lose invisiblity/hiding status for running attacks */
		916	if (pl->tmp_invis)
1000	{	917	{
1001	/* Seen some crashes below where current_weapon is not set,	918	pl->tmp_invis = 0;
1002	* even though the flag says it is. So if current weapon isn't set,	919	op->invisible = 0;
1003	* do some work in trying to find the object to use.	920	op->flag [FLAG_HIDDEN] = 0;
1004	*/	921	update_object (op, UP_OBJ_CHANGE);
1005	if (!op->current_weapon)
1006	{
1007	object *tmp;
1008
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;
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	}
1031	}	922	}
1032	}	923	}
1033		924
1034	/* lose invisiblity/hiding status for running attacks */
1035
1036	if (op->type == PLAYER && op->contr->tmp_invis)
1037	{
1038	op->contr->tmp_invis = 0;
1039	op->invisible = 0;
1040	op->hide = 0;
1041	update_object (op, UP_OBJ_FACE);
1042	}
1043
1044	success = attack_ob (tmp, op);	925	int success = attack_ob (tmp, op);
1045		926
1046	/* print appropriate messages to the player */	927	/* print appropriate messages to the player */
1047		928
1048	if (success && string != NULL && tmp && !QUERY_FLAG (tmp, FLAG_FREED))	929	if (success && string && tmp && !QUERY_FLAG (tmp, FLAG_FREED))
1049	{	930	{
1050	if (op->type == PLAYER)	931	if (op->type == PLAYER)
1051	new_draw_info_format (NDI_UNIQUE, 0, op, "You %s %s!", string, query_name (tmp));	932	new_draw_info_format (NDI_UNIQUE, 0, op, "You %s %s!", string, query_name (tmp));
1052	else if (tmp->type == PLAYER)	933	else if (tmp->type == PLAYER)
1053	new_draw_info_format (NDI_UNIQUE, 0, tmp, "%s %s you!", query_name (op), string);	934	new_draw_info_format (NDI_UNIQUE, 0, tmp, "%s %s you!", query_name (op), string);
1054	}	935	}
		936
1055	return success;	937	return success;
1056	}	938	}
1057
1058		939
1059	/* skill_attack() - Core routine for use when we attack using a skills	940	/* skill_attack() - Core routine for use when we attack using a skills
1060	* system. In essence, this code handles	941	* system. In essence, this code handles
1061	* all skill-based attacks, ie hth, missile and melee weapons should be	942	* 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(),	943	* treated here. If an opponent is already supplied by move_player(),
1063	* we move right onto do_skill_attack(), otherwise we find if an	944	* we move right onto do_skill_attack(), otherwise we find if an
1064	* appropriate opponent exists.	945	* appropriate opponent exists.
1065	*	946	*
1066	* This is called by move_player() and attack_hth()	947	* This is called by move_player() and attack_hth()
1067	*	948	*
1068	* Initial implementation by -bt thomas@astro.psu.edu	949	* Initial implementation by -bt thomas@astro.psu.edu
1069	*/	950	*/
1070
1071	int	951	int
1072	skill_attack (object tmp, object pl, int dir, const char string, object skill)	952	skill_attack (object tmp, object pl, int dir, const char string, object skill)
1073	{	953	{
1074	sint16 tx, ty;	954	sint16 tx, ty;
1075	mapstruct *m;	955	maptile *m;
1076	int mflags;	956	int mflags;
1077		957
1078	if (!dir)	958	if (!dir)
1079	dir = pl->facing;	959	dir = pl->facing;
		960
1080	tx = freearr_x[dir];	961	tx = freearr_x[dir];
1081	ty = freearr_y[dir];	962	ty = freearr_y[dir];
1082		963
1083	/* If we don't yet have an opponent, find if one exists, and attack.	964	/* 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()	965	* Legal opponents are the same as outlined in move_player_attack()
1085	*/	966	*/
1086		967	if (!tmp)
1087	if (tmp == NULL)
1088	{	968	{
1089	m = pl->map;	969	m = pl->map;
1090	tx = pl->x + freearr_x[dir];	970	tx = pl->x + freearr_x[dir];
1091	ty = pl->y + freearr_y[dir];	971	ty = pl->y + freearr_y[dir];
1092		972
…		…
1096		976
1097	/* space must be blocked for there to be anything interesting to do */	977	/* 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)))	978	if (!OB_TYPE_MOVE_BLOCK (pl, GET_MAP_MOVE_BLOCK (m, tx, ty)))
1099	return 0;	979	return 0;
1100		980
1101	for (tmp = get_map_ob (m, tx, ty); tmp; tmp = tmp->above)	981	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)	982	if ((QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->stats.hp >= 0) \|\| QUERY_FLAG (tmp, FLAG_CAN_ROLL) \|\| tmp->type == LOCKED_DOOR)
1103	{	983	{
1104	/* Don't attack party members */	984	/* Don't attack party members */
1105	if ((pl->type == PLAYER && tmp->type == PLAYER) && (pl->contr->party != NULL && pl->contr->party == tmp->contr->party))	985	if ((pl->type == PLAYER && tmp->type == PLAYER) && (pl->contr->party != NULL && pl->contr->party == tmp->contr->party))
1106	return 0;	986	return 0;
		987
1107	break;	988	break;
1108	}	989	}
1109	}	990	}
		991
1110	if (!tmp)	992	if (!tmp)
1111	{	993	{
1112	if (pl->type == PLAYER)	994	if (pl->type == PLAYER)
1113	new_draw_info (NDI_UNIQUE, 0, pl, "There is nothing to attack!");	995	new_draw_info (NDI_UNIQUE, 0, pl, "There is nothing to attack!");
		996
1114	return 0;	997	return 0;
1115	}	998	}
1116		999
1117	return do_skill_attack (tmp, pl, string, skill);	1000	return do_skill_attack (tmp, pl, string, skill);
1118	}	1001	}
1119
1120		1002
1121	/* attack_hth() - this handles all hand-to-hand attacks -b.t. */	1003	/* attack_hth() - this handles all hand-to-hand attacks -b.t. */
1122		1004
1123	/* July 5, 1995 - I broke up attack_hth() into 2 parts. In the first	1005	/* 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	1006	* (attack_hth) we check for weapon use, etc in the second (the new
1125	* function skill_attack() we actually attack.	1007	* function skill_attack() we actually attack.
1126	*/	1008	*/
1127
1128	static int	1009	static int
1129	attack_hth (object pl, int dir, const char string, object *skill)	1010	attack_hth (object pl, int dir, const char string, object *skill)
1130	{	1011	{
1131	object enemy = NULL, weapon;	1012	object enemy = NULL, weapon;
1132		1013
…		…
1135	{	1016	{
1136	if (weapon->type == WEAPON && QUERY_FLAG (weapon, FLAG_APPLIED))	1017	if (weapon->type == WEAPON && QUERY_FLAG (weapon, FLAG_APPLIED))
1137	{	1018	{
1138	CLEAR_FLAG (weapon, FLAG_APPLIED);	1019	CLEAR_FLAG (weapon, FLAG_APPLIED);
1139	CLEAR_FLAG (pl, FLAG_READY_WEAPON);	1020	CLEAR_FLAG (pl, FLAG_READY_WEAPON);
1140	fix_player (pl);	1021	pl->update_stats ();
1141	if (pl->type == PLAYER)	1022	if (pl->type == PLAYER)
1142	{	1023	{
1143	new_draw_info (NDI_UNIQUE, 0, pl, "You unwield your weapon in order to attack.");	1024	new_draw_info (NDI_UNIQUE, 0, pl, "You unwield your weapon in order to attack.");
1144	esrv_update_item (UPD_FLAGS, pl, weapon);	1025	esrv_update_item (UPD_FLAGS, pl, weapon);
1145	}	1026	}
		1027
1146	break;	1028	break;
1147	}	1029	}
1148	}	1030	}
		1031
1149	return skill_attack (enemy, pl, dir, string, skill);	1032	return skill_attack (enemy, pl, dir, string, skill);
1150	}	1033	}
1151
1152		1034
1153	/* attack_melee_weapon() - this handles melee weapon attacks -b.t.	1035	/* 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.	1036	* 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	1037	* But there is a real neato possible feature of this scheme which
1156	* bears mentioning:	1038	* bears mentioning:
1157	* Since we are only calling this from do_skill() in the future	1039	* Since we are only calling this from do_skill() in the future
1158	* we may make this routine handle 'special' melee weapons attacks	1040	* we may make this routine handle 'special' melee weapons attacks
1159	* (like disarming manuever with sai) based on player SK_level and	1041	* (like disarming manuever with sai) based on player SK_level and
1160	* weapon type.	1042	* weapon type.
1161	*/	1043	*/
1162
1163	static int	1044	static int
1164	attack_melee_weapon (object op, int dir, const char string, object *skill)	1045	attack_melee_weapon (object op, int dir, const char string, object *skill)
1165	{	1046	{
1166		1047
1167	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))	1048	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))
1168	{	1049	{
1169	if (op->type == PLAYER)	1050	if (op->type == PLAYER)
1170	new_draw_info (NDI_UNIQUE, 0, op, "You have no ready weapon to attack with!");	1051	new_draw_info (NDI_UNIQUE, 0, op, "You have no ready weapon to attack with!");
		1052
1171	return 0;	1053	return 0;
1172	}	1054	}
		1055
1173	return skill_attack (NULL, op, dir, string, skill);	1056	return skill_attack (NULL, op, dir, string, skill);
1174
1175	}	1057	}
		1058

Diff Legend

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Comparing deliantra/server/server/skill_util.C (file contents): Revision 1.12 by root, Thu Sep 14 22:34:04 2006 UTC vs. Revision 1.92 by root, Sat Apr 10 04:54:10 2010 UTC

Diff Legend

Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.12 by root, Thu Sep 14 22:34:04 2006 UTC vs.
Revision 1.92 by root, Sat Apr 10 04:54:10 2010 UTC