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

Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.23 by root, Tue Dec 26 08:55:00 2006 UTC vs.
Revision 1.102 by root, Sat Apr 23 04:56:57 2011 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 (©) 2005,2006,2007,2008,2009,2010,2011 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.
43	#include <object.h>	44	#include <object.h>
44	#include <sproto.h>	45	#include <sproto.h>
45	#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. */
46	#include <spells.h>	47	#include <spells.h>
47		48
48	/* Table of unarmed attack skills. Terminated by -1. This	49	const uint8_t skill_flags[NUM_SKILLS] = {
49	* is also the list that we should try to use skills when	50	0, // SK_NONE
50	* automatically applying one for the player.	51	# define def(uc, flags) flags,
51	*/	52	# include "skillinc.h"
52	static uint8 unarmed_skills[] = {	53	# undef def
53	SK_KARATE,
54	SK_CLAWING,
55	SK_FLAME_TOUCH,
56	SK_SPARK_TOUCH,
57	SK_SHIVER,
58	SK_ACID_SPLASH,
59	SK_POISON_NAIL,
60	SK_PUNCHING,
61	(uint8)-1
62	};	54	};
		55
		56	vector<object_ptr> skillvec;
63		57
64	static int attack_hth (object pl, int dir, const char string, object *skill);	58	static int attack_hth (object pl, int dir, const char string, object *skill);
65	static int attack_melee_weapon (object op, int dir, const char string, object *skill);	59	static int attack_melee_weapon (object op, int dir, const char string, object *skill);
66		60
67	/* init_skills basically just sets up the skill_names table	61	/* init_skills basically just sets up the skill_names table
68	* above. The index into the array is set up by the	62	* above. The index into the array is set up by the
69	* subtypes.	63	* subtypes.
70	*/	64	*/
71	void	65	void
72	init_skills (void)	66	init_skills ()
73	{	67	{
74	int i;	68	// nop
75	archetype *at;	69	}
76		70
77	for (at = first_archetype; at != NULL; at = at->next)	71	void
78	if (at->clone.type == SKILL)	72	add_skill_archetype (object *o)
		73	{
		74	assert (("skill name must equal skill skill", o->name == o->skill));
		75
		76	for (vector<object_ptr>::iterator i = skillvec.begin (); i != skillvec.end (); ++i)
		77	if ((*i)->name == o->name)
79	{	78	{
80	if (skill_names[at->clone.subtype] != NULL)	79	// replace existing entry
81	LOG (llevError, "init_skills: multiple skill using same subtype %d, %s, %s\n",	80	SKILL_INDEX (o) = i - skillvec.begin ();
82	at->clone.subtype, &skill_names[at->clone.subtype], &at->clone.skill);	81	*i = o;
83	else	82	return;
84	skill_names[at->clone.subtype] = at->clone.skill;
85	}	83	}
86		84
87	/* This isn't really an error if there is no skill subtype set, but	85	// add new entry
88	* checking for this may catch some user errors.	86	assert (("only CS_NUM_SKILLS skills supported by client protocol", skillvec.size () < CS_NUM_SKILLS));
89	*/	87	SKILL_INDEX (o) = skillvec.size ();
90	for (i = 1; i < NUM_SKILLS; i++)	88	skillvec.push_back (o);
91	{
92	if (!skill_names[i])
93	LOG (llevError, "init_skills: skill subtype %d doesn't have a name?\n", i);
94	}
95	}	89	}
96		90
97	/* This function goes through the player inventory and sets	91	/* This function goes through the player inventory and sets
98	* up the last_skills[] array in the player object.	92	* up the last_skills[] array in the player object.
99	* the last_skills[] is used to more quickly lookup skills -	93	* the last_skills[] is used to more quickly lookup skills -
100	* mostly used for sending exp.	94	* mostly used for sending exp.
101	*/	95	*/
102	void	96	void
103	link_player_skills (object *op)	97	player::link_skills ()
104	{	98	{
105	object *tmp;	99	for (int i = 0; i < CS_NUM_SKILLS; ++i)
		100	last_skill_ob [i] = 0;
106		101
107	for (tmp = op->inv; tmp; tmp = tmp->below)	102	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
108	{
109	if (tmp->type == SKILL)	103	if (tmp->type == SKILL)
110	{	104	{
111	/* This is really a warning, hence no else below */	105	int idx = SKILL_INDEX (tmp);
112	if (op->contr->last_skill_ob[tmp->subtype] && op->contr->last_skill_ob[tmp->subtype] != tmp)	106
		107	assert (IN_RANGE_EXC (idx, 0, CS_NUM_SKILLS));
		108
		109	if (last_skill_ob [idx] != tmp)
113	{	110	{
114	LOG (llevError, "Multiple skills with the same subtype? %s, %s\n",	111	last_skill_ob [idx] = tmp;
115	&op->contr->last_skill_ob[tmp->subtype]->skill, &tmp->skill);	112	if (ns)
		113	ns->last_skill_exp [idx] = -1;
116	}	114	}
117	if (tmp->subtype >= NUM_SKILLS)
118	{
119	LOG (llevError, "Invalid subtype number %d (range 0-%d)\n", tmp->subtype, NUM_SKILLS);
120	}
121	else
122	{
123	op->contr->last_skill_ob[tmp->subtype] = tmp;
124	op->contr->last_skill_exp[tmp->subtype] = -1;
125	}
126	}	115	}
127	}	116	}
		117
		118	static object *
		119	find_skill (object *who, shstr_cmp name)
		120	{
		121	if (who->chosen_skill
		122	&& who->chosen_skill->skill == name
		123	&& who->chosen_skill->type == SKILL)
		124	return who->chosen_skill;
		125
		126	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		127	if (tmp->skill == name && tmp->type == SKILL)
		128	return splay (tmp);
		129
		130	return 0;
		131	}
		132
		133	object *
		134	player::find_skill (shstr_cmp name) const
		135	{
		136	// might want to use last_skill_obj at one point, or maybe not
		137	return ::find_skill (ob, name);
128	}	138	}
129		139
130	/* This returns the skill pointer of the given name (the	140	/* This returns the skill pointer of the given name (the
131	* one that accumlates exp, has the level, etc).	141	* one that accumulates exp, has the level, etc).
132	*	142	*
133	* It is presumed that the player will be needing to actually	143	* It is presumed that the player will be needing to actually
134	* use the skill, so thus if use of the skill requires a skill	144	* use the skill, so thus if use of the skill requires a skill
135	* tool, this code will equip it.	145	* tool, this code will equip it.
136	*/	146	*/
137	object *	147	object *
138	find_skill_by_name (object who, const char name)	148	find_skill_by_name (object *who, shstr_cmp sh)
139	{	149	{
140	object skill = NULL, skill_tool = NULL, *tmp;	150	object *skill_tool = 0;
141		151
142	if (!name)
143	return NULL;
144
145	/* We make sure the length of the string in the object is greater
146	* in length than the passed string. Eg, if we have a skill called
147	* 'hi', we don't want to match if the user passed 'high'
148	*/
149	for (tmp = who->inv; tmp != NULL; tmp = tmp->below)	152	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		153	if (tmp->skill == sh)
150	{	154	{
151	if (tmp->type == SKILL && !strncasecmp (name, tmp->skill, strlen (name)) && (size_t) strlen (tmp->skill) >= strlen (name))	155	if (tmp->type == SKILL && (tmp->flag [FLAG_CAN_USE_SKILL] \|\| tmp->flag [FLAG_APPLIED]))
152	skill = tmp;	156	/* If this is a skill that can be used without applying tool, return it */
153		157	return splay (tmp);
154	/* Try to find appropriate skilltool. If the player has one already	158	/* Try to find appropriate skilltool. If the player has one already
155	* applied, we try to keep using that one.	159	* applied, we try to keep using that one.
156	*/	160	*/
157	else if (tmp->type == SKILL_TOOL && !strncasecmp (name, tmp->skill, strlen (name)) && (size_t) strlen (tmp->skill) >= strlen (name))	161	else if (tmp->type == SKILL_TOOL && !skill_tool)
158	{
159	if (QUERY_FLAG (tmp, FLAG_APPLIED))
160	skill_tool = tmp;	162	skill_tool = tmp;
161	else if (!skill_tool \|\| !QUERY_FLAG (skill_tool, FLAG_APPLIED))
162	skill_tool = tmp;
163	}	163	}
164	}	164
165	/* If this is a skill that can be used without a tool, return it */	165	if (!skill_tool)
166	if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))
167	return skill;	166	return 0;
168		167
169	/* Player has a tool to use the skill. IF not applied, apply it -	168	/* Player has a tool to use the skill. If not applied, apply it -
170	* if not successful, return null. If they do have the skill tool	169	* if not successful, return null. If they do have the skill tool
171	* but not the skill itself, give it to them.	170	* but not the skill itself, give it to them.
172	*/	171	*/
173	if (skill_tool)	172	object *skill = who->give_skill (skill_tool->skill);
174	{	173
175	if (!QUERY_FLAG (skill_tool, FLAG_APPLIED))	174	if (!skill_tool->flag [FLAG_APPLIED])
176	{	175	if (!who->apply (splay (skill_tool)))
177	if (apply_special (who, skill_tool, 0))
178	return NULL;
179	}
180	if (!skill)
181	{
182	skill = give_skill_by_name (who, skill_tool->skill);
183	link_player_skills (who);
184	}
185	return skill;	176	return 0;
186	}	177
		178	return splay (skill);
		179	}
		180
		181	object *
		182	find_skill_by_name_fuzzy (object who, const char name)
		183	{
		184	if (name)
		185	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		186	if ((tmp->type == SKILL \|\| tmp->type == SKILL_TOOL)
		187	&& tmp->skill.starts_with (name))
		188	if (object *skop = find_skill_by_name (who, tmp->skill))
		189	return skop;
		190
187	return NULL;	191	return 0;
188	}	192	}
189
190		193
191	/* This returns the skill pointer of the given name (the	194	/* This returns the skill pointer of the given name (the
192	* one that accumlates exp, has the level, etc).	195	* one that accumulates exp, has the level, etc).
193	*	196	*
194	* It is presumed that the player will be needing to actually	197	* It is presumed that the player will be needing to actually
195	* use the skill, so thus if use of the skill requires a skill	198	* use the skill, so thus if use of the skill requires a skill
196	* tool, this code will equip it.	199	* tool, this code will equip it.
197	*	200	*
198	* This code is basically the same as find_skill_by_name() above,	201	* This code is basically the same as find_skill_by_name() above,
199	* but instead a skill name, we search by matching number.	202	* but instead a skill name, we search by matching number.
200	* this replaces find_skill.	203	* this replaces find_skill.
		204	*
		205	* MUST NOT BE USED IN NEW CODE! (schmorp)
201	*/	206	*/
202	object *	207	object *
203	find_skill_by_number (object *who, int skillno)	208	find_skill_by_number (object *who, int skillno)
204	{	209	{
205	object skill = NULL, skill_tool = NULL, *tmp;
206
207	if (skillno < 1 \|\| skillno >= NUM_SKILLS)
208	return NULL;
209
210	for (tmp = who->inv; tmp != NULL; tmp = tmp->below)	210	for (object *tmp = who->inv; tmp; tmp = tmp->below)
211	{
212	if (tmp->type == SKILL && tmp->subtype == skillno)	211	if (tmp->type == SKILL && tmp->subtype == skillno)
213	skill = tmp;	212	if (object *skop = find_skill_by_name (who, tmp->skill))
		213	return skop;
214		214
215	/* Try to find appropriate skilltool. If the player has one already	215	return 0;
216	* applied, we try to keep using that one.	216	}
217	*/	217
218	else if (tmp->type == SKILL_TOOL && tmp->subtype == skillno)	218	object *
219	{	219	object::give_skill (shstr_cmp name, bool can_use)
220	if (QUERY_FLAG (tmp, FLAG_APPLIED))	220	{
221	skill_tool = tmp;	221	object *skill = find_skill (this, name);
222	else if (!skill_tool \|\| !QUERY_FLAG (skill_tool, FLAG_APPLIED))	222
223	skill_tool = tmp;	223	if (!skill)
224	}	224	skill = give_skill_by_name (this, name);
225	}	225
226	/* If this is a skill that can be used without a tool, return it */	226	if (skill && can_use)
227	if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))	227	skill->flag [FLAG_CAN_USE_SKILL] = true;
		228
228	return skill;	229	return skill;
229
230	/* Player has a tool to use the skill. IF not applied, apply it -
231	* if not successful, return null. If they do have the skill tool
232	* but not the skill itself, give it to them.
233	*/
234	if (skill_tool)
235	{
236	if (!QUERY_FLAG (skill_tool, FLAG_APPLIED))
237	{
238	if (apply_special (who, skill_tool, 0))
239	return NULL;
240	}
241
242	if (!skill)
243	{
244	skill = give_skill_by_name (who, skill_tool->skill);
245	link_player_skills (who);
246	}
247
248	return skill;
249	}
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
282	return 1;
283	}
284
285	// move skill to front, so it will be preferred next time
286	new_skill->remove ();
287	who->insert (new_skill);
288
289	if (!new_skill \|\| who->chosen_skill)
290	if (who->chosen_skill)
291	apply_special (who, who->chosen_skill, AP_UNAPPLY);
292
293	/* Only goal in this case was to unapply a skill */
294	if (!new_skill)
295	return 0;
296
297	if (apply_special (who, new_skill, AP_APPLY))
298	return 0;
299
300	if (flag & 0x1)
301	who->contr->shoottype = (rangetype)old_range;
302
303	return 1;
304	}
305
306	/* This function just clears the chosen_skill and range_skill values
307	* inthe player.
308	*/
309	void
310	clear_skill (object *who)
311	{
312	who->chosen_skill = NULL;
313	CLEAR_FLAG (who, FLAG_READY_SKILL);
314	if (who->type == PLAYER)
315	{
316	who->contr->ranges[range_skill] = NULL;
317	if (who->contr->shoottype == range_skill)
318	who->contr->shoottype = range_none;
319	}
320	}	230	}
321		231
322	/* do_skill() - Main skills use function-similar in scope to cast_spell().	232	/* do_skill() - Main skills use function-similar in scope to cast_spell().
323	* We handle all requests for skill use outside of some combat here.	233	* We handle all requests for skill use outside of some combat here.
324	* We require a separate routine outside of fire() so as to allow monsters	234	* We require a separate routine outside of fire() so as to allow monsters
…		…
327	* exp - no caller needed that info, but it also prevented the callers	237	* exp - no caller needed that info, but it also prevented the callers
328	* from know if a skill was actually used, as many skills don't	238	* from know if a skill was actually used, as many skills don't
329	* give any exp for their direct use (eg, throwing).	239	* give any exp for their direct use (eg, throwing).
330	* It returns 0 if no skill was used.	240	* It returns 0 if no skill was used.
331	*/	241	*/
332
333	int	242	int
334	do_skill (object op, object part, object skill, int dir, const char string)	243	do_skill (object op, object part, object skill, int dir, const char string)
335	{	244	{
336	int success = 0, exp = 0;	245	int success = 0, exp = 0;
337	int did_alc = 0;
338	object tmp, next;
339		246
340	if (!skill)	247	if (!skill)
341	return 0;	248	return 0;
342		249
343	/* The code below presumes that the skill points to the object that	250	/* The code below presumes that the skill points to the object that
…		…
345	* go and try to find the actual real skill pointer, and if the	252	* go and try to find the actual real skill pointer, and if the
346	* the player doesn't have a bucket for that, create one.	253	* the player doesn't have a bucket for that, create one.
347	*/	254	*/
348	if (skill->type != SKILL && op->type == PLAYER)	255	if (skill->type != SKILL && op->type == PLAYER)
349	{	256	{
350	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	257	for (object *tmp = op->inv; tmp; tmp = tmp->below)
351	{
352	if (tmp->type == SKILL && tmp->skill == skill->skill)	258	if (tmp->type == SKILL && tmp->skill == skill->skill)
353	break;	259	{
		260	skill = tmp;
		261	goto found;
354	}	262	}
355	if (!tmp)	263
356	tmp = give_skill_by_name (op, skill->skill);	264	skill = give_skill_by_name (op, skill->skill);
357	skill = tmp;	265	found: ;
358	}	266	}
359		267
360	// skill, by_whom, on_which_object, which direction, skill_argument	268	// skill, by_whom, on_which_object, which direction, skill_argument
361	if (INVOKE_OBJECT (USE_SKILL, skill, ARG_OBJECT (op), ARG_OBJECT (part), ARG_INT (dir), ARG_STRING (string)))	269	if (INVOKE_OBJECT (USE_SKILL, skill, ARG_OBJECT (op), ARG_OBJECT (part), ARG_INT (dir), ARG_STRING (string)))
362	return 0;	270	return 0;
363		271
364	switch (skill->subtype)	272	switch (skill->subtype)
365	{	273	{
366	case SK_LEVITATION:	274	case SK_LEVITATION:
367	/* Not 100% sure if this will work with new movement code -	275	/* Not 100% sure if this will work with new movement code -
368	* the levitation skill has move_type for flying, so when	276	* the levitation skill has move_type for flying, so when
369	* equipped, that should transfer to player, when not,	277	* equipped, that should transfer to player, when not,
370	* shouldn't.	278	* shouldn't.
371	*/	279	*/
372	if (QUERY_FLAG (skill, FLAG_APPLIED))	280	if (skill->flag [FLAG_APPLIED])
373	{	281	{
374	CLEAR_FLAG (skill, FLAG_APPLIED);	282	skill->clr_flag (FLAG_APPLIED);
375	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");	283	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");
376	}	284	}
377	else	285	else
378	{	286	{
379	SET_FLAG (skill, FLAG_APPLIED);	287	skill->set_flag (FLAG_APPLIED);
380	new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!.");	288	new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!");
381	}	289	}
		290
382	op->update_stats ();	291	op->update_stats ();
383	success = 1;	292	success = 1;
384	break;	293	break;
385		294
386	case SK_STEALING:	295	case SK_STEALING:
387	exp = success = steal (op, dir, skill);	296	exp = success = steal (op, dir, skill);
388	break;	297	break;
389		298
390	case SK_LOCKPICKING:	299	case SK_LOCKPICKING:
391	exp = success = pick_lock (op, dir, skill);	300	exp = success = pick_lock (op, dir, skill);
392	break;	301	break;
393		302
394	case SK_HIDING:	303	case SK_HIDING:
395	exp = success = hide (op, skill);	304	exp = success = hide (op, skill);
396	break;	305	break;
397		306
398	case SK_JUMPING:	307	case SK_JUMPING:
399	success = jump (op, dir, skill);	308	exp = success = jump (op, dir, skill);
400	break;	309	break;
401		310
402	case SK_INSCRIPTION:	311	case SK_INSCRIPTION:
403	exp = success = write_on_item (op, string, skill);	312	exp = success = write_on_item (op, string, skill);
404	break;	313	break;
405		314
406	case SK_MEDITATION:	315	case SK_MEDITATION:
407	meditate (op, skill);	316	meditate (op, skill);
408	success = 1;	317	success = 1;
409	break;	318	break;
410	/* note that the following 'attack' skills gain exp through hit_player() */	319	/* note that the following 'attack' skills gain exp through hit_player() */
411		320
412	case SK_KARATE:	321	case SK_KARATE:
413	(void) attack_hth (op, dir, "karate-chopped", skill);	322	attack_hth (op, dir, "karate-chopped", skill);
414	break;	323	break;
415		324
416	case SK_PUNCHING:	325	case SK_PUNCHING:
417	(void) attack_hth (op, dir, "punched", skill);	326	attack_hth (op, dir, "punched", skill);
418	break;	327	break;
419		328
420	case SK_FLAME_TOUCH:	329	case SK_FLAME_TOUCH:
421	(void) attack_hth (op, dir, "flamed", skill);	330	attack_hth (op, dir, "flamed", skill);
422	break;	331	break;
423		332
424	case SK_SPARK_TOUCH:	333	case SK_SPARK_TOUCH:
425	(void) attack_hth (op, dir, "zapped", skill);	334	attack_hth (op, dir, "zapped", skill);
426	break;	335	break;
427		336
428	case SK_SHIVER:	337	case SK_SHIVER:
429	(void) attack_hth (op, dir, "froze", skill);	338	attack_hth (op, dir, "froze", skill);
430	break;	339	break;
431		340
432	case SK_ACID_SPLASH:	341	case SK_ACID_SPLASH:
433	(void) attack_hth (op, dir, "dissolved", skill);	342	attack_hth (op, dir, "dissolved", skill);
434	break;	343	break;
435		344
436	case SK_POISON_NAIL:	345	case SK_POISON_NAIL:
437	(void) attack_hth (op, dir, "injected poison into", skill);	346	attack_hth (op, dir, "injected poison into", skill);
438	break;	347	break;
439		348
440	case SK_CLAWING:	349	case SK_CLAWING:
441	(void) attack_hth (op, dir, "clawed", skill);	350	attack_hth (op, dir, "clawed", skill);
442	break;	351	break;
443		352
444	case SK_ONE_HANDED_WEAPON:	353	case SK_ONE_HANDED_WEAPON:
445	case SK_TWO_HANDED_WEAPON:	354	case SK_TWO_HANDED_WEAPON:
446	(void) attack_melee_weapon (op, dir, NULL, skill);	355	attack_melee_weapon (op, dir, NULL, skill);
447	break;	356	break;
448		357
449	case SK_FIND_TRAPS:	358	case SK_FIND_TRAPS:
450	exp = success = find_traps (op, skill);	359	exp = success = find_traps (op, skill);
451	break;	360	break;
452		361
453	case SK_SINGING:	362	case SK_SINGING:
454	exp = success = singing (op, dir, skill);	363	exp = success = singing (op, dir, skill);
455	break;	364	break;
456		365
457	case SK_ORATORY:	366	case SK_ORATORY:
458	exp = success = use_oratory (op, dir, skill);	367	exp = success = use_oratory (op, dir, skill);
459	break;	368	break;
460		369
461	case SK_SMITHERY:	370	case SK_SMITHERY:
462	case SK_BOWYER:	371	case SK_BOWYER:
463	case SK_JEWELER:	372	case SK_JEWELER:
464	case SK_ALCHEMY:	373	case SK_ALCHEMY:
465	case SK_THAUMATURGY:	374	case SK_THAUMATURGY:
466	case SK_LITERACY:	375	case SK_LITERACY:
467	case SK_WOODSMAN:	376	case SK_WOODSMAN:
468	/* first, we try to find a cauldron, and do the alchemy thing.	377	/* first, we try to find a cauldron, and do the alchemy thing.
469	* failing that, we go and identify stuff.	378	* failing that, we go and identify stuff.
470	*/	379	*/
		380	{
		381	bool found_cauldron = false;
		382
471	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = next)	383	for (object next, tmp = GET_MAP_OB (op->map, op->x, op->y); tmp; tmp = next)
472	{	384	{
473	next = tmp->above;	385	next = tmp->above;
474		386
475	if (QUERY_FLAG (tmp, FLAG_IS_CAULDRON))	387	if (tmp->flag [FLAG_IS_CAULDRON])
476	{	388	{
		389	found_cauldron = true;
		390
		391	if (tmp->skill != skill->skill)
		392	{
		393	op->failmsgf ("You can't use the %s with the %s skill!",
		394	query_name (tmp),
		395	query_name (skill));
		396	break;
		397	}
		398
477	attempt_do_alchemy (op, tmp);	399	attempt_do_alchemy (op, tmp, skill);
478		400
479	if (QUERY_FLAG (tmp, FLAG_APPLIED))	401	if (tmp->flag [FLAG_APPLIED])
480	esrv_send_inventory (op, tmp);	402	esrv_send_inventory (op, tmp);
481
482	did_alc = 1;
483	}	403	}
484	}	404	}
485		405
486	if (did_alc == 0)	406	if (!found_cauldron)
487	exp = success = skill_ident (op, skill);	407	exp = success = skill_ident (op, skill);
488		408	}
489	break;	409	break;
490		410
491	case SK_DET_MAGIC:	411	case SK_DET_MAGIC:
492	case SK_DET_CURSE:	412	case SK_DET_CURSE:
493	exp = success = skill_ident (op, skill);	413	exp = success = skill_ident (op, skill);
494	break;	414	break;
495		415
496	case SK_DISARM_TRAPS:	416	case SK_DISARM_TRAPS:
497	exp = success = remove_trap (op, dir, skill);	417	exp = success = remove_trap (op, dir, skill);
498	break;	418	break;
499		419
500	case SK_THROWING:	420	case SK_THROWING:
501	success = skill_throw (op, part, dir, string, skill);	421	success = skill_throw (op, part, dir, string, skill);
502	break;	422	break;
503		423
504	case SK_SET_TRAP:	424	case SK_SET_TRAP:
505	new_draw_info (NDI_UNIQUE, 0, op, "This skill is not currently implemented.");	425	new_draw_info (NDI_UNIQUE, 0, op, "This skill is not currently implemented.");
506	break;	426	break;
507		427
508	case SK_USE_MAGIC_ITEM:	428	case SK_USE_MAGIC_ITEM:
509	case SK_MISSILE_WEAPON:	429	case SK_MISSILE_WEAPON:
510	new_draw_info (NDI_UNIQUE, 0, op, "There is no special attack for this skill.");	430	new_draw_info (NDI_UNIQUE, 0, op, "There is no special attack for this skill.");
511	break;	431	break;
512		432
513	case SK_PRAYING:	433	case SK_PRAYING:
514	success = pray (op, skill);	434	success = pray (op, skill);
515	break;	435	break;
516		436
517	case SK_BARGAINING:	437	case SK_BARGAINING:
518	success = describe_shop (op);	438	success = describe_shop (op);
519	break;	439	break;
520		440
521	case SK_SORCERY:	441	case SK_SORCERY:
522	case SK_EVOCATION:	442	case SK_EVOCATION:
523	case SK_PYROMANCY:	443	case SK_PYROMANCY:
524	case SK_SUMMONING:	444	case SK_SUMMONING:
525	case SK_CLIMBING:	445	case SK_CLIMBING:
526	new_draw_info (NDI_UNIQUE, 0, op, "This skill is already in effect.");	446	new_draw_info (NDI_UNIQUE, 0, op, "This skill is already in effect.");
527	break;	447	break;
528		448
		449	case SK_MINING:
		450	success = skill_mining (op, part, skill, dir, string);
		451	break;
		452
529	default:	453	default:
530	LOG (llevDebug, "%s attempted to use unknown skill: %d\n", query_name (op), op->chosen_skill->stats.sp);	454	LOG (llevDebug, "%s attempted to use unknown skill: %d\n", query_name (op), op->chosen_skill->stats.sp);
531	break;	455	break;
532	}	456	}
533		457
534	/* For players we now update the speed_left from using the skill.	458	/* For players we now update the speed_left from using the skill.
535	* Monsters have no skill use time because of the random nature in	459	* Monsters have no skill use time because of the random nature in
536	* which use_monster_skill is called already simulates this.	460	* which use_monster_skill is called already simulates this.
537	* If certain skills should take more/less time, that should be	461	* If certain skills should take more/less time, that should be
538	* in the code for the skill itself.	462	* in the code for the skill itself.
539	*/	463	*/
540
541	if (op->type == PLAYER)	464	if (op->type == PLAYER)
542	op->speed_left -= 1.0;	465	op->speed_left -= 1.f;
543		466
544	/* this is a good place to add experience for successfull use of skills.	467	/* this is a good place to add experience for successfull use of skills.
545	* Note that add_exp() will figure out player/monster experience	468	* Note that add_exp() will figure out player/monster experience
546	* gain problems.	469	* gain problems.
547	*/	470	*/
…		…
575	* op is the object that was 'defeated'.	498	* op is the object that was 'defeated'.
576	* skill is the skill used. If no skill is used, it should just	499	* skill is the skill used. If no skill is used, it should just
577	* point back to who.	500	* point back to who.
578	*	501	*
579	*/	502	*/
580
581	int	503	int
582	calc_skill_exp (object who, object op, object *skill)	504	calc_skill_exp (object who, object op, object *skill)
583	{	505	{
584	int op_exp = 0, op_lvl = 0;	506	int op_exp = 0, op_lvl = 0;
585	float base, value, lvl_mult = 0.0;	507	float base, value, lvl_mult = 0.0;
…		…
594	* If an object is not alive and magical we set the base exp higher to	516	* If an object is not alive and magical we set the base exp higher to
595	* help out exp awards for skill_ident skills. Also, if	517	* help out exp awards for skill_ident skills. Also, if
596	* an item is type RUNE, we give out exp based on stats.Cha	518	* an item is type RUNE, we give out exp based on stats.Cha
597	* and level (this was the old system) -b.t.	519	* and level (this was the old system) -b.t.
598	*/	520	*/
599
600	if (!op)	521	if (!op)
601	{ /* no item/creature */	522	{ /* no item/creature */
602	op_lvl = who->map->difficulty < 1 ? 1 : who->map->difficulty;	523	op_lvl = max (1, who->map->difficulty);
603	op_exp = 0;	524	op_exp = 0;
604	}	525	}
605	else if (op->type == RUNE \|\| op->type == TRAP)	526	else if (op->type == RUNE \|\| op->type == TRAP)
606	{ /* all traps. If stats.Cha > 1 we use that	527	{ /* all traps. If stats.Cha > 1 we use that
607	* for the amount of experience */	528	* for the amount of experience */
…		…
610	}	531	}
611	else	532	else
612	{ /* all other items/living creatures */	533	{ /* all other items/living creatures */
613	op_exp = op->stats.exp;	534	op_exp = op->stats.exp;
614	op_lvl = op->level;	535	op_lvl = op->level;
615	if (!QUERY_FLAG (op, FLAG_ALIVE))	536	if (!op->flag [FLAG_ALIVE])
616	{ /* for ident/make items */	537	op_lvl += 5 * abs (op->magic); /* for ident/make items */
617	op_lvl += 5 * abs (op->magic);
618	}
619	}	538	}
620		539
621	if (op_lvl < 1)	540	if (op_lvl < 1)
622	op_lvl = 1;	541	op_lvl = 1;
623		542
…		…
631	/* if skill really is a skill, then we can look at the skill archetype for	550	/* if skill really is a skill, then we can look at the skill archetype for
632	* bse reward value (exp) and level multiplier factor.	551	* bse reward value (exp) and level multiplier factor.
633	*/	552	*/
634	if (skill->type == SKILL)	553	if (skill->type == SKILL)
635	{	554	{
636	base += skill->arch->clone.stats.exp;	555	base += skill->arch->stats.exp;
637	if (settings.simple_exp)	556	if (settings.simple_exp)
638	{	557	{
639	if (skill->arch->clone.level)	558	if (skill->arch->level)
640	lvl_mult = (float) skill->arch->clone.level / 100.0;	559	lvl_mult = (float) skill->arch->level / 100.0;
641	else	560	else
642	lvl_mult = 1.0; /* no adjustment */	561	lvl_mult = 1.0; /* no adjustment */
643	}	562	}
644	else	563	else
645	{	564	{
646	if (skill->level)	565	if (skill->level)
647	lvl_mult = ((float) skill->arch->clone.level * (float) op_lvl) / ((float) skill->level * 100.0);	566	lvl_mult = ((float) skill->arch->level * (float) op_lvl) / ((float) skill->level * 100.0);
648	else	567	else
649	lvl_mult = 1.0;	568	lvl_mult = 1.0;
650	}	569	}
651	}	570	}
652	else	571	else
653	{	572	{
654	/* Don't divide by zero here! */	573	/* Don't divide by zero here! */
655	lvl_mult = (float) op_lvl / (float) (skill->level ? skill->level : 1);	574	lvl_mult = (float) op_lvl / (float) max (1, skill->level);
656	}	575	}
657	}	576	}
658		577
659	/* assemble the exp total, and return value */	578	/* assemble the exp total, and return value */
660		579
…		…
674	* This one actually teaches the player the skill as something	593	* This one actually teaches the player the skill as something
675	* they can equip.	594	* they can equip.
676	* Return 0 if the player knows the skill, 1 if the	595	* Return 0 if the player knows the skill, 1 if the
677	* player learns the skill, 2 otherwise.	596	* player learns the skill, 2 otherwise.
678	*/	597	*/
679
680	int	598	int
681	learn_skill (object pl, object scroll)	599	learn_skill (object pl, object scroll)
682	{	600	{
683	object *tmp;
684
685	if (!scroll->skill)	601	if (!scroll->skill)
686	{	602	{
687	LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name);	603	LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name);
688	return 2;	604	return 2;
689	}	605	}
690		606
691	/* can't use find_skill_by_name because we want skills the player knows	607	object *tmp = find_skill (pl, scroll->skill);
692	* but can't use natively.
693	*/
694
695	for (tmp = pl->inv; tmp != NULL; tmp = tmp->below)
696	if (tmp->type == SKILL && !strncasecmp (scroll->skill, tmp->skill, strlen (scroll->skill)))
697	break;
698		608
699	/* player already knows it */	609	/* player already knows it */
700	if (tmp && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL))	610	if (tmp && tmp->flag [FLAG_CAN_USE_SKILL])
701	return 0;	611	return 0;
702		612
703	/* now a random change to learn, based on player Int.	613	/* now a random change to learn, based on player Int.
704	* give bonus based on level - otherwise stupid characters	614	* give bonus based on level - otherwise stupid characters
705	* might never be able to learn anything.	615	* might never be able to learn anything.
…		…
714	{	624	{
715	LOG (llevError, "skill scroll %s does not have valid skill name (%s).\n", &scroll->name, &scroll->skill);	625	LOG (llevError, "skill scroll %s does not have valid skill name (%s).\n", &scroll->name, &scroll->skill);
716	return 2;	626	return 2;
717	}	627	}
718		628
719	SET_FLAG (tmp, FLAG_CAN_USE_SKILL);	629	tmp->set_flag (FLAG_CAN_USE_SKILL);
720	link_player_skills (pl);	630
721	return 1;	631	return 1;
722	}	632	}
723		633
724	/* Gives a percentage clipped to 0% -> 100% of a/b. */	634	/* Gives a percentage clipped to 0% -> 100% of a/b. */
725
726	/* Probably belongs in some global utils-type file? */	635	/* Probably belongs in some global utils-type file? */
727	static int	636	static int
728	clipped_percent (sint64 a, sint64 b)	637	clipped_percent (sint64 a, sint64 b)
729	{	638	{
730	int rv;	639	int rv;
…		…
738	return 0;	647	return 0;
739	else if (rv > 100)	648	else if (rv > 100)
740	return 100;	649	return 100;
741		650
742	return rv;	651	return rv;
		652	}
		653
		654	static int
		655	cmp_skillp (const void sk1, const void sk2)
		656	{
		657	return strcmp (&(((const object *) sk1)->name),
		658	&(((const object *) sk2)->name));
743	}	659	}
744		660
745	/* show_skills() - Meant to allow players to examine	661	/* show_skills() - Meant to allow players to examine
746	* their current skill list.	662	* their current skill list.
747	* This shows the amount of exp they have in the skills.	663	* This shows the amount of exp they have in the skills.
…		…
750	* Note this function is a bit more complicated becauase we	666	* Note this function is a bit more complicated becauase we
751	* we want ot sort the skills before printing them. If we	667	* we want ot sort the skills before printing them. If we
752	* just dumped this as we found it, this would be a bit	668	* just dumped this as we found it, this would be a bit
753	* simpler.	669	* simpler.
754	*/	670	*/
755
756	void	671	void
757	show_skills (object op, const char search)	672	show_skills (object pl, const char search)
758	{	673	{
759	object *tmp = NULL;
760	char buf[MAX_BUF];
761	const char *cp;	674	const char *cp;
762	int i, num_skills_found = 0;	675	int i, num_skills_found = 0;
763	static const char *const periods = "........................................";	676	object *skills[CS_NUM_SKILLS];
		677	object *op = pl->contr->ob;
764		678
765	/* Need to have a pointer and use strdup for qsort to work properly */	679	/* find the skills */
766	char skills[NUM_SKILLS][MAX_BUF];
767
768
769	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	680	for (object *tmp = op->inv; tmp; tmp = tmp->below)
770	{	681	{
771	if (tmp->type == SKILL)	682	if (tmp->type == SKILL)
772	{	683	{
773	if (search && strstr (tmp->name, search) == NULL)	684	if (search && !tmp->name.contains (search))
774	continue;	685	continue;
775	/* Basically want to fill this out to 40 spaces with periods */
776	sprintf (buf, "%s%s", &tmp->name, periods);
777	buf[40] = 0;
778		686
779	if (settings.permanent_exp_ratio)	687	skills[num_skills_found++] = tmp;
780	{	688
781	sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%" PRId64 "/%" PRId64 "/%d%%)",
782	buf, tmp->level, tmp->stats.exp,
783	level_exp (tmp->level + 1, op->expmul), clipped_percent (tmp->perm_exp, tmp->stats.exp));
784	}
785	else
786	{
787	sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%" PRId64 "/%" PRId64 ")",
788	buf, tmp->level, tmp->stats.exp, level_exp (tmp->level + 1, op->expmul));
789	}
790	/* I don't know why some characters get a bunch of skills, but	689	/* I don't know why some characters get a bunch of skills, but
791	* it sometimes happens (maybe a leftover from bugier earlier code	690	* it sometimes happens (maybe a leftover from bugier earlier code
792	* and those character are still about). In any case, lets handle	691	* and those character are still about). In any case, lets handle
793	* it so it doesn't crash the server - otherwise, one character may	692	* it so it doesn't crash the server - otherwise, one character may
794	* crash the server numerous times.	693	* crash the server numerous times.
795	*/	694	*/
796	if (num_skills_found >= NUM_SKILLS)	695	if (num_skills_found >= CS_NUM_SKILLS)
797	{	696	{
798	new_draw_info (NDI_RED, 0, op, "Your character has too many skills.");	697	new_draw_info (NDI_RED \| NDI_REPLY, 0, op, "Your character has too many skills.");
799	new_draw_info (NDI_RED, 0, op, "Something isn't right - contact the server admin");	698	new_draw_info (NDI_RED \| NDI_REPLY, 0, op, "Something isn't right - contact the server admin");
800	break;	699	break;
801	}	700	}
802	}	701	}
803	}	702	}
804		703
805	clear_win_info (op);	704	dynbuf_text &msg = msg_dynbuf; msg.clear ();
806	new_draw_info (NDI_UNIQUE, 0, op, "Player skills:");	705
		706	msg << "T<Player skills:>\n\n";
807	if (num_skills_found > 1)	707	if (num_skills_found > 1)
808	qsort (skills, num_skills_found, MAX_BUF, (int ()(const void , const void *)) strcmp);	708	qsort (skills, num_skills_found, sizeof (skills [0]), cmp_skillp);
809		709
		710	char buf[31]; /* +1 for '\0' */
		711	const char *const periods = ".............................."; // 30
		712
810	for (i = 0; i < num_skills_found; i++)	713	for (i = 0; i < num_skills_found; i++) {
811	{	714	object *tmp = skills[i];
812	new_draw_info (NDI_UNIQUE, 0, op, skills[i]);	715
		716	/* Basically want to fill this out to 30 spaces with periods */
		717	snprintf (buf, sizeof (buf), "%s%s", &tmp->name, periods);
		718
		719	msg << " C<";
		720
		721	if (settings.permanent_exp_ratio)
		722	msg.printf ("%slvl:%3d (xp:%" PRId64 "/%" PRId64 "/%d%%)",
		723	buf, tmp->level, tmp->stats.exp, level_exp (tmp->level + 1, op->expmul),
		724	clipped_percent (tmp->perm_exp, tmp->stats.exp));
		725	else
		726	msg.printf ("%slvl:%3d (xp:%" PRId64 "/%" PRId64 ")",
		727	buf, tmp->level, tmp->stats.exp, level_exp (tmp->level + 1, op->expmul));
		728
		729	msg << ">\n";
813	}	730	}
814		731
815	new_draw_info_format (NDI_UNIQUE, 0, op, "You can handle %d weapon improvements.", op->level / 5 + 5);	732	msg << "\nYou can handle " << op->level / 5 + 5 << " weapon improvements.\r";
816		733
817	cp = determine_god (op);	734	cp = determine_god (op);
818	new_draw_info_format (NDI_UNIQUE, 0, op, "You worship %s.", cp ? cp : "no god at current time");	735	msg << "You worship " << (cp ? cp : "no god at current time") << ".\r";
819		736
820	new_draw_info_format (NDI_UNIQUE, 0, op, "Your equipped item power is %d out of %d\n",	737	msg << "Your equipped item power is " << (int)op->contr->item_power
821	op->contr->item_power, (int) (op->level * settings.item_power_factor));	738	<< " out of " << int (op->level * settings.item_power_factor)
		739	<< ".\n";
		740
		741	pl->contr->infobox (MSG_CHANNEL ("skills"), msg);
822	}	742	}
823		743
824	/* use_skill() - similar to invoke command, it executes the skill in the	744	/* use_skill() - similar to invoke command, it executes the skill in the
825	* direction that the user is facing. Returns false if we are unable to	745	* direction that the user is facing. Returns false if we are unable to
826	* change to the requested skill, or were unable to use the skill properly.	746	* change to the requested skill, or were unable to use the skill properly.
827	* This is tricky because skills can have spaces. We basically roll	747	* This is tricky because skills can have spaces. We basically roll
828	* our own find_skill_by_name so we can try to do better string matching.	748	* our own find_skill_by_name so we can try to do better string matching.
829	*/	749	*/
830
831	int	750	int
832	use_skill (object op, const char string)	751	use_skill (object op, const char string)
833	{	752	{
834	object *skop;	753	object *skop;
835	size_t len;	754	size_t len;
836		755
837	if (!string)	756	if (!string)
838	return 0;	757	return 0;
839		758
840	for (skop = op->inv; skop != NULL; skop = skop->below)	759	for (skop = op->inv; skop; skop = skop->below)
841	{	760	if ((skop->type == SKILL \|\| skop->type == SKILL_TOOL)
842	if (skop->type == SKILL && QUERY_FLAG (skop, FLAG_CAN_USE_SKILL) &&
843	!strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))	761	&& !strncmp (string, skop->skill, min (strlen (string), strlen (skop->skill))))
		762	{
		763	skop = find_skill_by_name (op, skop->skill);
844	break;	764	break;
845	else if (skop->type == SKILL_TOOL && !strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))
846	break;
847	}	765	}
		766
848	if (!skop)	767	if (!skop)
849	{	768	{
850	new_draw_info_format (NDI_UNIQUE, 0, op, "Unable to find skill %s", string);	769	op->failmsgf ("Unable to find skill %s.", string);
		770	return 0;
		771	}
		772
		773	if (!(skill_flags [skop->subtype] & SF_USE))
		774	{
		775	op->failmsgf (
		776	"You feel as if you wanted to do something funny, but you can't remember what. "
		777	"H<The %s skill cannot be C<use_skill>'ed - maybe you need to C<ready_skill> it, "
		778	"use it with some item, or it's always active.>",
		779	&skop->skill
		780	);
851	return 0;	781	return 0;
852	}	782	}
853		783
854	len = strlen (skop->skill);	784	len = strlen (skop->skill);
855		785
…		…
857	* options given to the skill. Its pretty simple - if there	787	* options given to the skill. Its pretty simple - if there
858	* are extra parameters (as deteremined by string length), we	788	* are extra parameters (as deteremined by string length), we
859	* want to skip over any leading spaces.	789	* want to skip over any leading spaces.
860	*/	790	*/
861	if (len >= strlen (string))	791	if (len >= strlen (string))
862	{
863	string = NULL;	792	string = NULL;
864	}
865	else	793	else
866	{	794	{
867	string += len;	795	string += len;
868	while (*string == 0x20)	796	while (*string == 0x20)
869	string++;	797	string++;
		798
870	if (strlen (string) == 0)	799	if (strlen (string) == 0)
871	string = NULL;	800	string = NULL;
872	}	801	}
873		802
874	#ifdef SKILL_UTIL_DEBUG	803	#ifdef SKILL_UTIL_DEBUG
875	LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none");	804	LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none");
876	#endif	805	#endif
877		806
878	/* Change to the new skill, then execute it. */
879	if (do_skill (op, op, skop, op->facing, string))	807	if (do_skill (op, op, skop, op->facing, string))
880	return 1;	808	return 1;
881		809
882	return 0;	810	return 0;
883	}	811	}
884		812
885	static bool	813	static bool
886	hth_skill_p (object *skill)	814	hth_skill_p (object *skill)
887	{	815	{
888	for (unsigned int i = 0; i < sizeof (unarmed_skills); ++i)	816	return (skill_flags [skill->subtype] & (SF_COMBAT \| SF_NEED_ITEM)) == SF_COMBAT;
889	if (skill->subtype == unarmed_skills[i])
890	return 1;
891
892	return 0;
893	}	817	}
894		818
895	/* This finds the first unarmed skill the player has, and returns it.	819	/* This finds the first unarmed skill the player has, and returns it.
896	*/	820	*/
897	static object *	821	static object *
898	find_player_hth_skill (object *op)	822	find_player_hth_skill (object *op)
899	{	823	{
900	for (object *tmp = op->inv; tmp; tmp = tmp->below)	824	for (object *tmp = op->inv; tmp; tmp = tmp->below)
901	if (tmp->type == SKILL && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL) && hth_skill_p (tmp))	825	if (tmp->type == SKILL && tmp->flag [FLAG_CAN_USE_SKILL] && hth_skill_p (tmp))
902	return tmp;	826	return tmp;
903		827
904	return 0;	828	return 0;
905	}	829	}
906		830
…		…
911	* tmp is the targetted monster.	835	* tmp is the targetted monster.
912	* op is what is attacking	836	* op is what is attacking
913	* string is passed along to describe what messages to describe	837	* string is passed along to describe what messages to describe
914	* the damage.	838	* the damage.
915	*/	839	*/
916
917	static int	840	static int
918	do_skill_attack (object tmp, object op, const char string, object skill)	841	do_skill_attack (object tmp, object op, const char string, object skill)
919	{	842	{
920	int success;
921
922	if (INVOKE_OBJECT (SKILL_ATTACK, op, ARG_OBJECT (tmp), ARG_STRING (string), ARG_OBJECT (skill)))	843	if (INVOKE_OBJECT (SKILL_ATTACK, op, ARG_OBJECT (tmp), ARG_STRING (string), ARG_OBJECT (skill)))
923	return RESULT_INT (0);	844	return RESULT_INT (0);
924		845
925	/* For Players only: if there is no ready weapon, and no "attack" skill	846	/* For Players only: if there is no ready weapon, and no "attack" skill
926	* is readied either then try to find a skill for the player to use.	847	* is readied either then try to find a skill for the player to use.
927	* it is presumed that if skill is set, it is a valid attack skill (eg,	848	* it is presumed that if skill is set, it is a valid attack skill (eg,
928	* the caller should have set it appropriately). We still want to pass	849	* the caller should have set it appropriately). We still want to pass
929	* through that code if skill is set to change to the skill.	850	* through that code if skill is set to change to the skill.
930	*/	851	*/
931	if (op->type == PLAYER)	852	if (player *pl = op->contr)
932	{	853	{
933	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))	854	if (skill)
934	{	855	{
935	if (!skill)	856	if (!op->apply (skill))
		857	return 0;
		858	}
		859	else
		860	{
		861	if (!pl->combat_ob)
936	{	862	{
937	/* See if the players chosen skill is a combat skill, and use	863	if (op->flag [FLAG_READY_WEAPON])
938	* it if appropriate.
939	*/
940	if (op->chosen_skill && hth_skill_p (op->chosen_skill))
941	skill = op->chosen_skill;
942	else
943	{	864	{
944	skill = find_player_hth_skill (op);	865	for (tmp = op->inv; tmp; tmp = tmp->below)
		866	if (tmp->type == WEAPON && tmp->flag [FLAG_APPLIED])
		867	break;
945		868
946	if (!skill)	869	if (!tmp)
		870	LOG (llevError, "Could not find applied weapon on %s\n", &op->name);
		871
		872	pl->combat_ob = tmp;
		873	}
		874
		875	if (!pl->combat_ob)
		876	{
		877	/* See if the players chosen skill is a combat skill, and use
		878	* it if appropriate.
		879	*/
		880	if (op->chosen_skill && hth_skill_p (op->chosen_skill))
		881	skill = op->chosen_skill;
		882	else
947	{	883	{
		884	skill = find_player_hth_skill (op);
		885
		886	if (!skill)
948	new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!");	887	new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!");
949	return 0;
950	}	888	}
		889
		890	op->apply (skill);
		891	}
		892
		893	if (!pl->combat_ob)
		894	{
		895	LOG (llevError, "Could not find anything to attack on %s\n", &op->name);
		896	return 0;
951	}	897	}
952	}	898	}
953		899
954	/* now try to ready the new skill */	900	if (!op->apply (pl->combat_ob))
955	if (!change_skill (op, skill, 0))	901	return 0;
956	{ /* oh oh, trouble! */	902
957	new_draw_info_format (NDI_UNIQUE, 0, tmp, "Couldn't change to skill %s", &skill->name);	903	if (!op->chosen_skill)
		904	{
		905	LOG (llevError, "do_skill_attack: weapon has no skill (%s)", pl->combat_ob->debug_desc ());
		906	new_draw_info (NDI_RED \| NDI_REPLY, 0, op, "You hit a bug in the server, please contact an admin!");
958	return 0;	907	return 0;
959	}	908	}
960	}	909	}
961	else	910
		911	/* lose invisiblity/hiding status for running attacks */
		912	if (pl->tmp_invis)
962	{	913	{
963	/* Seen some crashes below where current_weapon is not set,	914	pl->tmp_invis = 0;
964	* even though the flag says it is. So if current weapon isn't set,	915	op->invisible = 0;
965	* do some work in trying to find the object to use.	916	op->flag [FLAG_HIDDEN] = 0;
966	*/	917	update_object (op, UP_OBJ_CHANGE);
967	if (!op->current_weapon)
968	{
969	object *tmp;
970
971	LOG (llevError, "Player %s does not have current weapon set but flag_ready_weapon is set\n", &op->name);
972	for (tmp = op->inv; tmp; tmp = tmp->below)
973	if (tmp->type == WEAPON && QUERY_FLAG (tmp, FLAG_APPLIED))
974	break;
975
976	if (!tmp)
977	{
978	LOG (llevError, "Could not find applied weapon on %s\n", &op->name);
979	op->current_weapon = NULL;
980	return 0;
981	}
982	else
983	{
984	op->current_weapon = tmp;
985	}
986	}
987
988	change_skill (op, find_skill_by_name (op, op->current_weapon->skill), 1);
989	}	918	}
990	}	919	}
991		920
992	/* lose invisiblity/hiding status for running attacks */
993
994	if (op->type == PLAYER && op->contr->tmp_invis)
995	{
996	op->contr->tmp_invis = 0;
997	op->invisible = 0;
998	op->hide = 0;
999	update_object (op, UP_OBJ_FACE);
1000	}
1001
1002	success = attack_ob (tmp, op);	921	int success = attack_ob (tmp, op);
1003		922
1004	/* print appropriate messages to the player */	923	/* print appropriate messages to the player */
1005		924
1006	if (success && string != NULL && tmp && !QUERY_FLAG (tmp, FLAG_FREED))	925	if (success && string && tmp && !tmp->flag [FLAG_FREED])
1007	{	926	{
1008	if (op->type == PLAYER)	927	if (op->type == PLAYER)
1009	new_draw_info_format (NDI_UNIQUE, 0, op, "You %s %s!", string, query_name (tmp));	928	new_draw_info_format (NDI_UNIQUE, 0, op, "You %s %s!", string, query_name (tmp));
1010	else if (tmp->type == PLAYER)	929	else if (tmp->type == PLAYER)
1011	new_draw_info_format (NDI_UNIQUE, 0, tmp, "%s %s you!", query_name (op), string);	930	new_draw_info_format (NDI_UNIQUE, 0, tmp, "%s %s you!", query_name (op), string);
1012	}	931	}
		932
1013	return success;	933	return success;
1014	}	934	}
1015
1016		935
1017	/* skill_attack() - Core routine for use when we attack using a skills	936	/* skill_attack() - Core routine for use when we attack using a skills
1018	* system. In essence, this code handles	937	* system. In essence, this code handles
1019	* all skill-based attacks, ie hth, missile and melee weapons should be	938	* all skill-based attacks, i.e. hth, missile and melee weapons should be
1020	* treated here. If an opponent is already supplied by move_player(),	939	* treated here. If an opponent is already supplied by move_player(),
1021	* we move right onto do_skill_attack(), otherwise we find if an	940	* we move right onto do_skill_attack(), otherwise we find if an
1022	* appropriate opponent exists.	941	* appropriate opponent exists.
1023	*	942	*
1024	* This is called by move_player() and attack_hth()	943	* This is called by move_player() and attack_hth()
1025	*	944	*
1026	* Initial implementation by -bt thomas@astro.psu.edu	945	* Initial implementation by -bt thomas@astro.psu.edu
1027	*/	946	*/
1028
1029	int	947	int
1030	skill_attack (object tmp, object pl, int dir, const char string, object skill)	948	skill_attack (object tmp, object pl, int dir, const char string, object skill)
1031	{	949	{
1032	sint16 tx, ty;	950	sint16 tx, ty;
1033	maptile *m;	951	maptile *m;
…		…
1040	ty = freearr_y[dir];	958	ty = freearr_y[dir];
1041		959
1042	/* If we don't yet have an opponent, find if one exists, and attack.	960	/* If we don't yet have an opponent, find if one exists, and attack.
1043	* Legal opponents are the same as outlined in move_player_attack()	961	* Legal opponents are the same as outlined in move_player_attack()
1044	*/	962	*/
1045		963	if (!tmp)
1046	if (tmp == NULL)
1047	{	964	{
1048	m = pl->map;	965	m = pl->map;
1049	tx = pl->x + freearr_x[dir];	966	tx = pl->x + freearr_x[dir];
1050	ty = pl->y + freearr_y[dir];	967	ty = pl->y + freearr_y[dir];
1051		968
…		…
1056	/* space must be blocked for there to be anything interesting to do */	973	/* space must be blocked for there to be anything interesting to do */
1057	if (!OB_TYPE_MOVE_BLOCK (pl, GET_MAP_MOVE_BLOCK (m, tx, ty)))	974	if (!OB_TYPE_MOVE_BLOCK (pl, GET_MAP_MOVE_BLOCK (m, tx, ty)))
1058	return 0;	975	return 0;
1059		976
1060	for (tmp = GET_MAP_OB (m, tx, ty); tmp; tmp = tmp->above)	977	for (tmp = GET_MAP_OB (m, tx, ty); tmp; tmp = tmp->above)
1061	if ((QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->stats.hp >= 0) \|\| QUERY_FLAG (tmp, FLAG_CAN_ROLL) \|\| tmp->type == LOCKED_DOOR)	978	if ((tmp->flag [FLAG_ALIVE] && tmp->stats.hp >= 0) \|\| tmp->flag [FLAG_CAN_ROLL] \|\| tmp->type == LOCKED_DOOR)
1062	{	979	{
1063	/* Don't attack party members */	980	/* Don't attack party members */
1064	if ((pl->type == PLAYER && tmp->type == PLAYER) && (pl->contr->party != NULL && pl->contr->party == tmp->contr->party))	981	if ((pl->type == PLAYER && tmp->type == PLAYER) && (pl->contr->party != NULL && pl->contr->party == tmp->contr->party))
1065	return 0;	982	return 0;
		983
1066	break;	984	break;
1067	}	985	}
1068	}	986	}
		987
1069	if (!tmp)	988	if (!tmp)
1070	{	989	{
1071	if (pl->type == PLAYER)	990	if (pl->type == PLAYER)
1072	new_draw_info (NDI_UNIQUE, 0, pl, "There is nothing to attack!");	991	new_draw_info (NDI_UNIQUE, 0, pl, "There is nothing to attack!");
		992
1073	return 0;	993	return 0;
1074	}	994	}
1075		995
1076	return do_skill_attack (tmp, pl, string, skill);	996	return do_skill_attack (tmp, pl, string, skill);
1077	}	997	}
1078
1079		998
1080	/* attack_hth() - this handles all hand-to-hand attacks -b.t. */	999	/* attack_hth() - this handles all hand-to-hand attacks -b.t. */
1081		1000
1082	/* July 5, 1995 - I broke up attack_hth() into 2 parts. In the first	1001	/* July 5, 1995 - I broke up attack_hth() into 2 parts. In the first
1083	* (attack_hth) we check for weapon use, etc in the second (the new	1002	* (attack_hth) we check for weapon use, etc in the second (the new
1084	* function skill_attack() we actually attack.	1003	* function skill_attack() we actually attack.
1085	*/	1004	*/
1086
1087	static int	1005	static int
1088	attack_hth (object pl, int dir, const char string, object *skill)	1006	attack_hth (object pl, int dir, const char string, object *skill)
1089	{	1007	{
1090	object enemy = NULL, weapon;	1008	object enemy = NULL, weapon;
1091		1009
1092	if (QUERY_FLAG (pl, FLAG_READY_WEAPON))	1010	if (pl->flag [FLAG_READY_WEAPON])
1093	for (weapon = pl->inv; weapon; weapon = weapon->below)	1011	for (weapon = pl->inv; weapon; weapon = weapon->below)
1094	{	1012	{
1095	if (weapon->type == WEAPON && QUERY_FLAG (weapon, FLAG_APPLIED))	1013	if (weapon->type == WEAPON && weapon->flag [FLAG_APPLIED])
1096	{	1014	{
1097	CLEAR_FLAG (weapon, FLAG_APPLIED);	1015	weapon->clr_flag (FLAG_APPLIED);
1098	CLEAR_FLAG (pl, FLAG_READY_WEAPON);	1016	pl->clr_flag (FLAG_READY_WEAPON);
1099	pl->update_stats ();	1017	pl->update_stats ();
1100	if (pl->type == PLAYER)	1018	if (pl->type == PLAYER)
1101	{	1019	{
1102	new_draw_info (NDI_UNIQUE, 0, pl, "You unwield your weapon in order to attack.");	1020	new_draw_info (NDI_UNIQUE, 0, pl, "You unwield your weapon in order to attack.");
1103	esrv_update_item (UPD_FLAGS, pl, weapon);	1021	esrv_update_item (UPD_FLAGS, pl, weapon);
1104	}	1022	}
		1023
1105	break;	1024	break;
1106	}	1025	}
1107	}	1026	}
		1027
1108	return skill_attack (enemy, pl, dir, string, skill);	1028	return skill_attack (enemy, pl, dir, string, skill);
1109	}	1029	}
1110
1111		1030
1112	/* attack_melee_weapon() - this handles melee weapon attacks -b.t.	1031	/* attack_melee_weapon() - this handles melee weapon attacks -b.t.
1113	* For now we are just checking to see if we have a ready weapon here.	1032	* For now we are just checking to see if we have a ready weapon here.
1114	* But there is a real neato possible feature of this scheme which	1033	* But there is a real neato possible feature of this scheme which
1115	* bears mentioning:	1034	* bears mentioning:
1116	* Since we are only calling this from do_skill() in the future	1035	* Since we are only calling this from do_skill() in the future
1117	* we may make this routine handle 'special' melee weapons attacks	1036	* we may make this routine handle 'special' melee weapons attacks
1118	* (like disarming manuever with sai) based on player SK_level and	1037	* (like disarming manuever with sai) based on player SK_level and
1119	* weapon type.	1038	* weapon type.
1120	*/	1039	*/
1121
1122	static int	1040	static int
1123	attack_melee_weapon (object op, int dir, const char string, object *skill)	1041	attack_melee_weapon (object op, int dir, const char string, object *skill)
1124	{	1042	{
1125		1043
1126	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))	1044	if (!op->flag [FLAG_READY_WEAPON])
1127	{	1045	{
1128	if (op->type == PLAYER)	1046	if (op->type == PLAYER)
1129	new_draw_info (NDI_UNIQUE, 0, op, "You have no ready weapon to attack with!");	1047	new_draw_info (NDI_UNIQUE, 0, op, "You have no ready weapon to attack with!");
		1048
1130	return 0;	1049	return 0;
1131	}	1050	}
		1051
1132	return skill_attack (NULL, op, dir, string, skill);	1052	return skill_attack (NULL, op, dir, string, skill);
1133
1134	}	1053	}
		1054

Diff Legend

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Comparing deliantra/server/server/skill_util.C (file contents): Revision 1.23 by root, Tue Dec 26 08:55:00 2006 UTC vs. Revision 1.102 by root, Sat Apr 23 04:56:57 2011 UTC

Diff Legend

Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.23 by root, Tue Dec 26 08:55:00 2006 UTC vs.
Revision 1.102 by root, Sat Apr 23 04:56:57 2011 UTC