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

Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.7 by root, Sun Sep 3 00:18:42 2006 UTC vs.
Revision 1.73 by root, Thu Jan 1 19:42:43 2009 UTC

…		…
1	/*	1	/*
2	* static char *rcsid_skill_util_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	* "$Id: skill_util.C,v 1.7 2006/09/03 00:18:42 root Exp $";	3	*
4	*/	4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	/*
6	CrossFire, A Multiplayer game for X-windows
7
8	Copryight (C) 2002 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
9	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
10		7	*
11	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
12	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
13	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
14	(at your option) any later version.	11	* (at your option) any later version.
15		12	*
16	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,
17	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
18	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19	GNU General Public License for more details.	16	* GNU General Public License for more details.
20		17	*
21	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
22	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
23	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
24		21	* The authors can be reached via e-mail to <support@deliantra.net>
25	The author can be reached via e-mail to crossfire-devel@real-time.com
26	*/	22	*/
27		23
28	/* Created July 95 to separate skill utilities from actual skills -b.t. */	24	/* Created July 95 to separate skill utilities from actual skills -b.t. */
29		25
30	/* Reconfigured skills code to allow linking of skills to experience	26	/* Reconfigured skills code to allow linking of skills to experience
31	* categories. This is done solely through the init_new_exp_system() fctn.	27	* categories. This is done solely through the init_new_exp_system() fctn.
38	* experience. Calc_skill_exp() handles the gained experience using	34	* experience. Calc_skill_exp() handles the gained experience using
39	* modifications in the skills[] table. - b.t.	35	* modifications in the skills[] table. - b.t.
40	*/	36	*/
41		37
42	/* define the following for skills utility debuging */	38	/* define the following for skills utility debuging */
		39
43	/* #define SKILL_UTIL_DEBUG */	40	/* #define SKILL_UTIL_DEBUG */
44
45	#define WANT_UNARMED_SKILLS
46		41
47	#include <global.h>	42	#include <global.h>
48	#include <object.h>	43	#include <object.h>
49	#ifndef __CEXTRACT__
50	#include <sproto.h>	44	#include <sproto.h>
51	#endif
52	#include <living.h> /* for defs of STR,CON,DEX,etc. -b.t.*/	45	#include <living.h> /* for defs of STR,CON,DEX,etc. -b.t. */
53	#include <spells.h>	46	#include <spells.h>
54		47
		48	const uint8_t skill_flags[NUM_SKILLS] = {
		49	0, // SK_NONE
		50	# define def(uc, flags) flags,
		51	# include "skillinc.h"
		52	# undef def
		53	};
		54
55	static int attack_hth(object pl, int dir, const char string, object *skill);	55	static int attack_hth (object pl, int dir, const char string, object *skill);
56	static int attack_melee_weapon(object op, int dir, const char string, object *skill);	56	static int attack_melee_weapon (object op, int dir, const char string, object *skill);
57
58	shstr skill_names[NUM_SKILLS];
59		57
60	/* init_skills basically just sets up the skill_names table	58	/* init_skills basically just sets up the skill_names table
61	* above. The index into the array is set up by the	59	* above. The index into the array is set up by the
62	* subtypes.	60	* subtypes.
63	*/	61	*/
		62	void
64	void init_skills(void) {	63	init_skills (void)
65	int i;	64	{
66	archetype *at;	65	for_all_archetypes (at)
67
68	for(at = first_archetype;at!=NULL;at=at->next) {
69	if (at->clone.type == SKILL) {	66	if (at->type == SKILL)
		67	{
70	if (skill_names[at->clone.subtype] != NULL) {	68	if (skill_names[at->subtype])
71	LOG(llevError, "init_skills: multiple skill using same subtype %d, %s, %s\n",	69	LOG (llevError, "init_skills: multiple skill using same subtype %d, %s, %s\n",
72	at->clone.subtype, &skill_names[at->clone.subtype], &at->clone.skill);	70	at->subtype, &skill_names[at->subtype], &at->skill);
73	} else {	71	else
74	skill_names[at->clone.subtype] = at->clone.skill;	72	skill_names[at->subtype] = at->skill;
75	}
76	}	73	}
77	}
78		74
79	/* This isn't really an error if there is no skill subtype set, but	75	/* This isn't really an error if there is no skill subtype set, but
80	* checking for this may catch some user errors.	76	* checking for this may catch some user errors.
81	*/	77	*/
82	for (i=1; i<NUM_SKILLS; i++) {	78	for (int i = 1; i < NUM_SKILLS; i++)
83	if (!skill_names[i])	79	if (!skill_names[i])
84	LOG(llevError, "init_skills: skill subtype %d doesn't have a name?\n",	80	LOG (llevError, "init_skills: skill subtype %d doesn't have a name?\n", i);
85	i);
86	}
87	}	81	}
88
89		82
90	/* This function goes through the player inventory and sets	83	/* This function goes through the player inventory and sets
91	* up the last_skills[] array in the player object.	84	* up the last_skills[] array in the player object.
92	* the last_skills[] is used to more quickly lookup skills -	85	* the last_skills[] is used to more quickly lookup skills -
93	* mostly used for sending exp.	86	* mostly used for sending exp.
94	*/	87	*/
95	void link_player_skills(object *op)	88	void
		89	player::link_skills ()
96	{	90	{
97	object *tmp;	91	for (int i = 0; i < NUM_SKILLS; ++i)
		92	last_skill_ob [i] = 0;
98		93
99	for (tmp=op->inv; tmp; tmp=tmp->below) {	94	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
100	if (tmp->type == SKILL) {	95	if (tmp->type == SKILL)
		96	{
		97	assert (IN_RANGE_EXC (tmp->subtype, 0, NUM_SKILLS));
		98
		99	if (last_skill_ob [tmp->subtype] != tmp)
		100	{
101	/* This is really a warning, hence no else below */	101	/* This is really a warning, hence no else below */
102	if (op->contr->last_skill_ob[tmp->subtype] && op->contr->last_skill_ob[tmp->subtype] != tmp) {	102	if (last_skill_ob [tmp->subtype])
103	LOG(llevError,"Multiple skills with the same subtype? %s, %s\n",	103	LOG (llevError, "Multiple skills with the same subtype? %s, %s\n",
104	&op->contr->last_skill_ob[tmp->subtype]->skill, &tmp->skill);	104	&last_skill_ob [tmp->subtype]->skill, &tmp->skill);
		105
		106	last_skill_ob [tmp->subtype] = tmp;
		107	if (ns)
		108	ns->last_skill_exp [tmp->subtype] = -1;
105	}	109	}
106	if (tmp->subtype >= NUM_SKILLS) {
107	LOG(llevError,"Invalid subtype number %d (range 0-%d)\n",
108	tmp->subtype, NUM_SKILLS);
109	} else {
110	op->contr->last_skill_ob[tmp->subtype] = tmp;
111	op->contr->last_skill_exp[tmp->subtype] = -1;
112	}
113	}	110	}
114	}	111	}
		112
		113	static object *
		114	find_skill (object *who, shstr_cmp name)
		115	{
		116	if (who->chosen_skill
		117	&& who->chosen_skill->skill == name
		118	&& who->chosen_skill->type == SKILL)
		119	return who->chosen_skill;
		120
		121	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		122	if (tmp->skill == name && tmp->type == SKILL)
		123	return splay (tmp);
		124
		125	return 0;
		126	}
		127
		128	object *player::find_skill (shstr_cmp name) const
		129	{
		130	// might want to use last_skill_obj at one point, or maybe not
		131	return ::find_skill (ob, name);
115	}	132	}
116		133
117	/* This returns the skill pointer of the given name (the	134	/* This returns the skill pointer of the given name (the
118	* one that accumlates exp, has the level, etc).	135	* one that accumulates exp, has the level, etc).
119	*	136	*
120	* It is presumed that the player will be needing to actually	137	* It is presumed that the player will be needing to actually
121	* use the skill, so thus if use of the skill requires a skill	138	* use the skill, so thus if use of the skill requires a skill
122	* tool, this code will equip it.	139	* tool, this code will equip it.
123	*/	140	*/
124	object find_skill_by_name(object who, const char *name)	141	object *
		142	find_skill_by_name (object *who, shstr_cmp sh)
125	{	143	{
126	object skill=NULL, skill_tool=NULL, *tmp;	144	object *skill_tool = 0;
127		145
128	if (!name) return NULL;
129
130	/* We make sure the length of the string in the object is greater
131	* in length than the passed string. Eg, if we have a skill called
132	* 'hi', we don't want to match if the user passed 'high'
133	*/
134	for (tmp=who->inv; tmp!=NULL; tmp=tmp->below) {	146	for (object *tmp = who->inv; tmp; tmp = tmp->below)
135	if (tmp->type == SKILL && !strncasecmp(name, tmp->skill, strlen(name)) &&	147	if (tmp->skill == sh)
136	strlen(tmp->skill) >= strlen(name)) skill = tmp;	148	{
137		149	if (tmp->type == SKILL && (tmp->flag [FLAG_CAN_USE_SKILL] \|\| tmp->flag [FLAG_APPLIED]))
		150	/* If this is a skill that can be used without applying tool, return it */
		151	return splay (tmp);
138	/* Try to find appropriate skilltool. If the player has one already	152	/* Try to find appropriate skilltool. If the player has one already
139	* applied, we try to keep using that one.	153	* applied, we try to keep using that one.
140	*/	154	*/
141	else if (tmp->type == SKILL_TOOL && !strncasecmp(name, tmp->skill, strlen(name)) &&	155	else if (tmp->type == SKILL_TOOL && !skill_tool)
142	strlen(tmp->skill) >= strlen(name)) {
143	if (QUERY_FLAG(tmp, FLAG_APPLIED)) skill_tool = tmp;
144	else if (!skill_tool \|\| !QUERY_FLAG(skill_tool, FLAG_APPLIED))
145	skill_tool = tmp;	156	skill_tool = tmp;
146	}	157	}
147	}
148	/* If this is a skill that can be used without a tool, return it */
149	if (skill && QUERY_FLAG(skill, FLAG_CAN_USE_SKILL)) return skill;
150		158
		159	if (!skill_tool)
		160	return 0;
		161
151	/* Player has a tool to use the skill. IF not applied, apply it -	162	/* Player has a tool to use the skill. If not applied, apply it -
152	* if not successful, return null. If they do have the skill tool	163	* if not successful, return null. If they do have the skill tool
153	* but not the skill itself, give it to them.	164	* but not the skill itself, give it to them.
154	*/	165	*/
155	if (skill_tool) {	166	object *skill = find_skill (who, skill_tool->skill);
156	if (!QUERY_FLAG(skill_tool, FLAG_APPLIED)) {	167
157	if (apply_special(who, skill_tool, 0)) return NULL;
158	}
159	if (!skill) {	168	if (!skill)
160	skill = give_skill_by_name(who, skill_tool->skill);	169	skill = give_skill_by_name (who, skill_tool->skill);
161	link_player_skills(who);	170
162	}	171	if (!skill_tool->flag [FLAG_APPLIED])
		172	if (apply_special (who, splay (skill_tool), AP_APPLY \| AP_NO_READY))
		173	return 0;
		174
		175	return splay (skill);
		176	}
		177
		178	object *
		179	find_skill_by_name_fuzzy (object who, const char name)
		180	{
		181	if (!name)
		182	return 0;
		183
		184	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		185	if ((tmp->type == SKILL \|\| tmp->type == SKILL_TOOL)
		186	&& tmp->skill.starts_with (name))
		187	if (object *skop = find_skill_by_name (who, tmp->skill))
163	return skill;	188	return skop;
164	}
165	return NULL;
166	}
167		189
		190	return 0;
		191	}
168		192
169	/* This returns the skill pointer of the given name (the	193	/* This returns the skill pointer of the given name (the
170	* one that accumlates exp, has the level, etc).	194	* one that accumulates exp, has the level, etc).
171	*	195	*
172	* It is presumed that the player will be needing to actually	196	* It is presumed that the player will be needing to actually
173	* use the skill, so thus if use of the skill requires a skill	197	* use the skill, so thus if use of the skill requires a skill
174	* tool, this code will equip it.	198	* tool, this code will equip it.
175	*	199	*
176	* This code is basically the same as find_skill_by_name() above,	200	* This code is basically the same as find_skill_by_name() above,
177	* but instead a skill name, we search by matching number.	201	* but instead a skill name, we search by matching number.
178	* this replaces find_skill.	202	* this replaces find_skill.
179	*/	203	*/
		204	object *
180	object find_skill_by_number(object who, int skillno)	205	find_skill_by_number (object *who, int skillno)
181	{	206	{
182	object skill=NULL, skill_tool=NULL, *tmp;
183
184	if (skillno < 1 \|\| skillno >= NUM_SKILLS) return NULL;
185
186	for (tmp=who->inv; tmp!=NULL; tmp=tmp->below) {	207	for (object *tmp = who->inv; tmp; tmp = tmp->below)
187	if (tmp->type == SKILL && tmp->subtype == skillno) skill = tmp;
188
189	/* Try to find appropriate skilltool. If the player has one already
190	* applied, we try to keep using that one.
191	*/
192	else if (tmp->type == SKILL_TOOL && tmp->subtype == skillno) {	208	if (tmp->type == SKILL && tmp->subtype == skillno)
193	if (QUERY_FLAG(tmp, FLAG_APPLIED)) skill_tool = tmp;	209	if (object *skop = find_skill_by_name (who, tmp->skill))
194	else if (!skill_tool \|\| !QUERY_FLAG(skill_tool, FLAG_APPLIED))
195	skill_tool = tmp;
196	}
197	}
198	/* If this is a skill that can be used without a tool, return it */
199	if (skill && QUERY_FLAG(skill, FLAG_CAN_USE_SKILL)) return skill;
200
201	/* Player has a tool to use the skill. IF not applied, apply it -
202	* if not successful, return null. If they do have the skill tool
203	* but not the skill itself, give it to them.
204	*/
205	if (skill_tool) {
206	if (!QUERY_FLAG(skill_tool, FLAG_APPLIED)) {
207	if (apply_special(who, skill_tool, 0)) return NULL;
208	}
209	if (!skill) {
210	skill = give_skill_by_name(who, skill_tool->skill);
211	link_player_skills(who);
212	}
213	return skill;	210	return skop;
214	}
215	return NULL;
216	}
217		211
		212	return 0;
		213	}
		214
218	/* This changes the objects skill to new_skill.	215	/* This changes the objects chosen_skill to new_skill.
219	* note that this function doesn't always need to get used -
220	* you can now add skill exp to the player without the chosen_skill being
221	* set. This function is of most interest to players to update
222	* the various range information.
223	* if new_skill is null, this just unapplies the skill.
224	* flag has the current meaning:
225	* 0x1: If set, don't update the range pointer. This is useful when we
226	* need to ready a new skill, but don't want to clobber range.
227	* return 1 on success, 0 on error	216	* return 1 on success, 0 on error
228	*/	217	*/
229		218	bool
230	int change_skill (object who, object new_skill, int flag)	219	object::change_skill (object *new_skill)
231	{	220	{
232	int old_range;
233
234	if ( who->type != PLAYER )	221	if (type != PLAYER)
235	return 0;	222	return 0;
236
237	old_range = who->contr->shoottype;
238		223
239	if (who->chosen_skill && who->chosen_skill == new_skill)	224	// optimise this supposedly common case
240	{
241	/* optimization for changing skill to current skill */
242	if (who->type == PLAYER && !(flag & 0x1))
243	who->contr->shoottype = range_skill;
244	return 1;
245	}
246
247	if (!new_skill \|\| who->chosen_skill)	225	if (new_skill == chosen_skill)
248	if (who->chosen_skill) apply_special(who, who->chosen_skill, AP_UNAPPLY);
249
250	/* Only goal in this case was to unapply a skill */
251	if (!new_skill) return 0;
252
253	if (apply_special (who, new_skill, AP_APPLY)) {
254	return 0;
255	}
256	if (flag & 0x1)
257	who->contr->shoottype = (rangetype) old_range;
258
259	return 1;	226	return 1;
260	}
261		227
262	/* This function just clears the chosen_skill and range_skill values	228	if (chosen_skill)
263	* inthe player.
264	*/
265	void clear_skill(object *who)
266	{
267	who->chosen_skill = NULL;
268	CLEAR_FLAG(who, FLAG_READY_SKILL);
269	if (who->type == PLAYER) {
270	who->contr->ranges[range_skill] = NULL;
271	if (who->contr->shoottype == range_skill)
272	who->contr->shoottype = range_none;
273	}	229	{
		230	chosen_skill->flag [FLAG_APPLIED] = false;
		231	change_abil (this, chosen_skill);
		232	}
		233
		234	chosen_skill = new_skill;
		235
		236	if (chosen_skill)
		237	{
		238	chosen_skill->flag [FLAG_APPLIED] = true;
		239	change_abil (this, chosen_skill);
		240	}
		241
		242	// always clear current weapon, as the selected skill could
		243	// conflict with the current weapon skill, which would go
		244	// undetected and exp would be given to the wrong skill.
		245	current_weapon = 0;
		246
		247	update_stats ();
		248	return 1;
274	}	249	}
275		250
276	/* do_skill() - Main skills use function-similar in scope to cast_spell().	251	/* do_skill() - Main skills use function-similar in scope to cast_spell().
277	* We handle all requests for skill use outside of some combat here.	252	* We handle all requests for skill use outside of some combat here.
278	* We require a separate routine outside of fire() so as to allow monsters	253	* We require a separate routine outside of fire() so as to allow monsters
…		…
281	* exp - no caller needed that info, but it also prevented the callers	256	* exp - no caller needed that info, but it also prevented the callers
282	* from know if a skill was actually used, as many skills don't	257	* from know if a skill was actually used, as many skills don't
283	* give any exp for their direct use (eg, throwing).	258	* give any exp for their direct use (eg, throwing).
284	* It returns 0 if no skill was used.	259	* It returns 0 if no skill was used.
285	*/	260	*/
286		261	int
287	int do_skill (object op, object part, object skill, int dir, const char string) {	262	do_skill (object op, object part, object skill, int dir, const char string)
		263	{
288	int success=0, exp=0;	264	int success = 0, exp = 0;
289	int did_alc = 0;	265	int did_alc = 0;
290	object tmp, next;
291		266
292	if (!skill) return 0;	267	if (!skill)
		268	return 0;
293		269
294	/* The code below presumes that the skill points to the object that	270	/* The code below presumes that the skill points to the object that
295	* holds the exp, level, etc of the skill. So if this is a player	271	* holds the exp, level, etc of the skill. So if this is a player
296	* go and try to find the actual real skill pointer, and if the	272	* go and try to find the actual real skill pointer, and if the
297	* the player doesn't have a bucket for that, create one.	273	* the player doesn't have a bucket for that, create one.
298	*/	274	*/
299	if (skill->type != SKILL && op->type == PLAYER) {	275	if (skill->type != SKILL && op->type == PLAYER)
		276	{
300	for (tmp = op->inv; tmp!=NULL; tmp=tmp->below) {	277	for (object *tmp = op->inv; tmp; tmp = tmp->below)
301	if (tmp->type == SKILL && tmp->skill == skill->skill) break;	278	if (tmp->type == SKILL && tmp->skill == skill->skill)
302	}	279	{
303	if (!tmp) tmp=give_skill_by_name(op, skill->skill);
304	skill = tmp;	280	skill = tmp;
305	}	281	goto found;
		282	}
306		283
		284	skill = give_skill_by_name (op, skill->skill);
		285	found: ;
		286	}
		287
307	// skill, by_whom, on_which_object, which direction, skill_argument	288	// skill, by_whom, on_which_object, which direction, skill_argument
308	if (INVOKE_OBJECT (USE_SKILL, skill, ARG_OBJECT (op), ARG_OBJECT (part), ARG_INT (dir), ARG_STRING (string)))	289	if (INVOKE_OBJECT (USE_SKILL, skill, ARG_OBJECT (op), ARG_OBJECT (part), ARG_INT (dir), ARG_STRING (string)))
309	return 0;	290	return 0;
310		291
311	switch(skill->subtype) {	292	switch (skill->subtype)
		293	{
312	case SK_LEVITATION:	294	case SK_LEVITATION:
313	/* Not 100% sure if this will work with new movement code -	295	/* Not 100% sure if this will work with new movement code -
314	* the levitation skill has move_type for flying, so when	296	* the levitation skill has move_type for flying, so when
315	* equipped, that should transfer to player, when not,	297	* equipped, that should transfer to player, when not,
316	* shouldn't.	298	* shouldn't.
317	*/	299	*/
318	if(QUERY_FLAG(skill,FLAG_APPLIED)) {	300	if (QUERY_FLAG (skill, FLAG_APPLIED))
		301	{
319	CLEAR_FLAG(skill,FLAG_APPLIED);	302	CLEAR_FLAG (skill, FLAG_APPLIED);
320	new_draw_info(NDI_UNIQUE,0,op,"You come to earth.");	303	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");
321	}	304	}
322	else {	305	else
		306	{
323	SET_FLAG(skill,FLAG_APPLIED);	307	SET_FLAG (skill, FLAG_APPLIED);
324	new_draw_info(NDI_UNIQUE,0,op,"You rise into the air!.");	308	new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!");
325	}	309	}
326	fix_player(op);	310
		311	op->update_stats ();
327	success=1;	312	success = 1;
328	break;	313	break;
329		314
330	case SK_STEALING:	315	case SK_STEALING:
331	exp = success = steal(op, dir, skill);	316	exp = success = steal (op, dir, skill);
332	break;	317	break;
333		318
334	case SK_LOCKPICKING:	319	case SK_LOCKPICKING:
335	exp = success = pick_lock(op, dir, skill);	320	exp = success = pick_lock (op, dir, skill);
336	break;	321	break;
337		322
338	case SK_HIDING:	323	case SK_HIDING:
339	exp = success = hide(op, skill);	324	exp = success = hide (op, skill);
340	break;	325	break;
341		326
342	case SK_JUMPING:	327	case SK_JUMPING:
343	success = jump(op, dir, skill);	328	exp = success = jump (op, dir, skill);
344	break;	329	break;
345		330
346	case SK_INSCRIPTION:	331	case SK_INSCRIPTION:
347	exp = success = write_on_item(op,string, skill);	332	exp = success = write_on_item (op, string, skill);
348	break;	333	break;
349		334
350	case SK_MEDITATION:	335	case SK_MEDITATION:
351	meditate(op, skill);	336	meditate (op, skill);
352	success=1;	337	success = 1;
353	break;	338	break;
354	/* note that the following 'attack' skills gain exp through hit_player() */	339	/* note that the following 'attack' skills gain exp through hit_player() */
355		340
356	case SK_KARATE:	341	case SK_KARATE:
357	(void) attack_hth(op,dir,"karate-chopped", skill);	342	attack_hth (op, dir, "karate-chopped", skill);
358	break;	343	break;
359		344
360	case SK_PUNCHING:	345	case SK_PUNCHING:
361	(void) attack_hth(op,dir,"punched", skill);	346	attack_hth (op, dir, "punched", skill);
362	break;	347	break;
363		348
364	case SK_FLAME_TOUCH:	349	case SK_FLAME_TOUCH:
365	(void) attack_hth(op,dir,"flamed", skill);	350	attack_hth (op, dir, "flamed", skill);
366	break;	351	break;
367		352
368	case SK_SPARK_TOUCH:	353	case SK_SPARK_TOUCH:
369	(void) attack_hth(op,dir,"zapped", skill);	354	attack_hth (op, dir, "zapped", skill);
370	break;	355	break;
371		356
372	case SK_SHIVER:	357	case SK_SHIVER:
373	(void) attack_hth(op,dir,"froze", skill);	358	attack_hth (op, dir, "froze", skill);
374	break;	359	break;
375		360
376	case SK_ACID_SPLASH:	361	case SK_ACID_SPLASH:
377	(void) attack_hth(op,dir,"dissolved", skill);	362	attack_hth (op, dir, "dissolved", skill);
378	break;	363	break;
379		364
380	case SK_POISON_NAIL:	365	case SK_POISON_NAIL:
381	(void) attack_hth(op,dir,"injected poison into", skill);	366	attack_hth (op, dir, "injected poison into", skill);
382	break;	367	break;
383		368
384	case SK_CLAWING:	369	case SK_CLAWING:
385	(void) attack_hth(op,dir,"clawed", skill);	370	attack_hth (op, dir, "clawed", skill);
386	break;	371	break;
387		372
388	case SK_ONE_HANDED_WEAPON:	373	case SK_ONE_HANDED_WEAPON:
389	case SK_TWO_HANDED_WEAPON:	374	case SK_TWO_HANDED_WEAPON:
390	(void) attack_melee_weapon(op,dir,NULL, skill);	375	attack_melee_weapon (op, dir, NULL, skill);
391	break;	376	break;
392		377
393	case SK_FIND_TRAPS:	378	case SK_FIND_TRAPS:
394	exp = success = find_traps(op, skill);	379	exp = success = find_traps (op, skill);
395	break;	380	break;
396		381
397	case SK_SINGING:	382	case SK_SINGING:
398	exp = success = singing(op,dir, skill);	383	exp = success = singing (op, dir, skill);
399	break;	384	break;
400		385
401	case SK_ORATORY:	386	case SK_ORATORY:
402	exp = success = use_oratory(op,dir, skill);	387	exp = success = use_oratory (op, dir, skill);
403	break;	388	break;
404		389
405	case SK_SMITHERY:	390	case SK_SMITHERY:
406	case SK_BOWYER:	391	case SK_BOWYER:
407	case SK_JEWELER:	392	case SK_JEWELER:
408	case SK_ALCHEMY:	393	case SK_ALCHEMY:
409	case SK_THAUMATURGY:	394	case SK_THAUMATURGY:
410	case SK_LITERACY:	395	case SK_LITERACY:
411	case SK_WOODSMAN:	396	case SK_WOODSMAN:
412	/* first, we try to find a cauldron, and do the alchemy thing.	397	/* first, we try to find a cauldron, and do the alchemy thing.
413	* failing that, we go and identify stuff.	398	* failing that, we go and identify stuff.
414	*/	399	*/
415	for (tmp=get_map_ob(op->map, op->x, op->y); tmp != NULL;tmp=next) {	400	for (object next, tmp = GET_MAP_OB (op->map, op->x, op->y); tmp; tmp = next)
		401	{
416	next=tmp->above;	402	next = tmp->above;
		403
417	if(QUERY_FLAG(tmp, FLAG_IS_CAULDRON)) {	404	if (QUERY_FLAG (tmp, FLAG_IS_CAULDRON))
		405	{
418	attempt_do_alchemy(op, tmp);	406	attempt_do_alchemy (op, tmp);
		407
419	if (QUERY_FLAG(tmp, FLAG_APPLIED))	408	if (QUERY_FLAG (tmp, FLAG_APPLIED))
420	esrv_send_inventory(op, tmp);	409	esrv_send_inventory (op, tmp);
		410
421	did_alc=1;	411	did_alc = 1;
422	}	412	}
423	}	413	}
		414
424	if (did_alc == 0)	415	if (did_alc == 0)
425	exp = success = skill_ident(op,skill);
426	break;
427
428	case SK_DET_MAGIC:
429	case SK_DET_CURSE:
430	exp = success = skill_ident(op,skill);	416	exp = success = skill_ident (op, skill);
		417
431	break;	418	break;
432		419
		420	case SK_DET_MAGIC:
		421	case SK_DET_CURSE:
		422	exp = success = skill_ident (op, skill);
		423	break;
		424
433	case SK_DISARM_TRAPS:	425	case SK_DISARM_TRAPS:
434	exp = success = remove_trap(op,dir, skill);	426	exp = success = remove_trap (op, dir, skill);
435	break;	427	break;
436		428
437	case SK_THROWING:	429	case SK_THROWING:
438	success = skill_throw(op,part,dir,string, skill);	430	success = skill_throw (op, part, dir, string, skill);
439	break;	431	break;
440		432
441	case SK_SET_TRAP:	433	case SK_SET_TRAP:
442	new_draw_info(NDI_UNIQUE, 0,op,"This skill is not currently implemented.");	434	new_draw_info (NDI_UNIQUE, 0, op, "This skill is not currently implemented.");
443	break;	435	break;
444		436
445	case SK_USE_MAGIC_ITEM:	437	case SK_USE_MAGIC_ITEM:
446	case SK_MISSILE_WEAPON:	438	case SK_MISSILE_WEAPON:
447	new_draw_info(NDI_UNIQUE, 0,op,"There is no special attack for this skill.");	439	new_draw_info (NDI_UNIQUE, 0, op, "There is no special attack for this skill.");
448	break;	440	break;
449		441
450	case SK_PRAYING:	442	case SK_PRAYING:
451	success = pray(op, skill);	443	success = pray (op, skill);
452	break;	444	break;
453		445
454	case SK_BARGAINING:	446	case SK_BARGAINING:
455	success = describe_shop(op);	447	success = describe_shop (op);
456	break;	448	break;
457		449
458	case SK_SORCERY:	450	case SK_SORCERY:
459	case SK_EVOCATION:	451	case SK_EVOCATION:
460	case SK_PYROMANCY:	452	case SK_PYROMANCY:
461	case SK_SUMMONING:	453	case SK_SUMMONING:
462	case SK_CLIMBING:	454	case SK_CLIMBING:
463	new_draw_info(NDI_UNIQUE, 0,op,"This skill is already in effect.");	455	new_draw_info (NDI_UNIQUE, 0, op, "This skill is already in effect.");
464	break;	456	break;
465		457
466	default:	458	default:
467	LOG(llevDebug,"%s attempted to use unknown skill: %d\n"	459	LOG (llevDebug, "%s attempted to use unknown skill: %d\n", query_name (op), op->chosen_skill->stats.sp);
468	,query_name(op), op->chosen_skill->stats.sp);
469	break;	460	break;
470	}	461	}
471		462
472	/* For players we now update the speed_left from using the skill.	463	/* For players we now update the speed_left from using the skill.
473	* Monsters have no skill use time because of the random nature in	464	* Monsters have no skill use time because of the random nature in
474	* which use_monster_skill is called already simulates this.	465	* which use_monster_skill is called already simulates this.
475	* If certain skills should take more/less time, that should be	466	* If certain skills should take more/less time, that should be
476	* in the code for the skill itself.	467	* in the code for the skill itself.
477	*/	468	*/
478		469	if (op->type == PLAYER)
479	if(op->type==PLAYER) op->speed_left -= 1.0;	470	op->speed_left -= 1.f;
480		471
481	/* this is a good place to add experience for successfull use of skills.	472	/* this is a good place to add experience for successfull use of skills.
482	* Note that add_exp() will figure out player/monster experience	473	* Note that add_exp() will figure out player/monster experience
483	* gain problems.	474	* gain problems.
484	*/	475	*/
485		476
		477	if (success && exp)
486	if(success && exp) change_exp(op,exp, skill->skill, 0);	478	change_exp (op, exp, skill->skill, 0);
487		479
488	return success;	480	return success;
489	}	481	}
490		482
491	/* calc_skill_exp() - calculates amount of experience can be gained for	483	/* calc_skill_exp() - calculates amount of experience can be gained for
492	* successfull use of a skill. Returns value of experience gain.	484	* successfull use of a skill. Returns value of experience gain.
493	* Here we take the view that a player must 'overcome an opponent'	485	* Here we take the view that a player must 'overcome an opponent'
…		…
511	* op is the object that was 'defeated'.	503	* op is the object that was 'defeated'.
512	* skill is the skill used. If no skill is used, it should just	504	* skill is the skill used. If no skill is used, it should just
513	* point back to who.	505	* point back to who.
514	*	506	*
515	*/	507	*/
516		508	int
517	int calc_skill_exp(object who, object op, object *skill) {	509	calc_skill_exp (object who, object op, object *skill)
		510	{
518	int op_exp=0,op_lvl= 0;	511	int op_exp = 0, op_lvl = 0;
519	float base,value,lvl_mult=0.0;	512	float base, value, lvl_mult = 0.0;
520		513
521	if (!skill) skill = who;	514	if (!skill)
		515	skill = who;
522		516
523	/* Oct 95 - where we have an object, I expanded our treatment	517	/* Oct 95 - where we have an object, I expanded our treatment
524	* to 3 cases:	518	* to 3 cases:
525	* non-living magic obj, runes and everything else.	519	* non-living magic obj, runes and everything else.
526	*	520	*
527	* If an object is not alive and magical we set the base exp higher to	521	* If an object is not alive and magical we set the base exp higher to
528	* help out exp awards for skill_ident skills. Also, if	522	* help out exp awards for skill_ident skills. Also, if
529	* an item is type RUNE, we give out exp based on stats.Cha	523	* an item is type RUNE, we give out exp based on stats.Cha
530	* and level (this was the old system) -b.t.	524	* and level (this was the old system) -b.t.
531	*/	525	*/
532		526	if (!op)
533	if(!op) { /* no item/creature */	527	{ /* no item/creature */
534	op_lvl= who->map->difficulty < 1 ? 1: who->map->difficulty;	528	op_lvl = max (1, who->map->difficulty);
535	op_exp = 0;	529	op_exp = 0;
536	} else if(op->type==RUNE \|\| op->type==TRAP) { /* all traps. If stats.Cha > 1 we use that	530	}
		531	else if (op->type == RUNE \|\| op->type == TRAP)
		532	{ /* all traps. If stats.Cha > 1 we use that
537	* for the amount of experience */	533	* for the amount of experience */
538	op_exp = op->stats.Cha>1 ? op->stats.Cha : op->stats.exp;	534	op_exp = op->stats.Cha > 1 ? op->stats.Cha : op->stats.exp;
539	op_lvl = op->level;	535	op_lvl = op->level;
540	} else { /* all other items/living creatures */	536	}
		537	else
		538	{ /* all other items/living creatures */
541	op_exp = op->stats.exp;	539	op_exp = op->stats.exp;
542	op_lvl = op->level;	540	op_lvl = op->level;
543	if(!QUERY_FLAG(op,FLAG_ALIVE)) { /* for ident/make items */	541	if (!QUERY_FLAG (op, FLAG_ALIVE))
544	op_lvl += 5 * abs(op->magic);	542	op_lvl += 5 * abs (op->magic); /* for ident/make items */
545	}
546	}	543	}
547		544
548	if(op_lvl<1) op_lvl = 1;	545	if (op_lvl < 1)
		546	op_lvl = 1;
549		547
550	if(who->type!=PLAYER) { /* for monsters only */	548	if (who->type != PLAYER)
		549	{ /* for monsters only */
551	return ((int) (op_exp0.1)+1); / we add one to insure positive value is returned */	550	return ((int) (op_exp * 0.1) + 1); /* we add one to insure positive value is returned */
		551	}
		552	else
552	} else { /* for players */	553	{ /* for players */
553	base = op_exp;	554	base = op_exp;
554	/* if skill really is a skill, then we can look at the skill archetype for	555	/* if skill really is a skill, then we can look at the skill archetype for
555	* bse reward value (exp) and level multiplier factor.	556	* bse reward value (exp) and level multiplier factor.
556	*/	557	*/
557	if (skill->type == SKILL) {	558	if (skill->type == SKILL)
		559	{
558	base += skill->arch->clone.stats.exp;	560	base += skill->arch->stats.exp;
559	if (settings.simple_exp) {	561	if (settings.simple_exp)
		562	{
560	if (skill->arch->clone.level)	563	if (skill->arch->level)
561	lvl_mult = (float) skill->arch->clone.level / 100.0;	564	lvl_mult = (float) skill->arch->level / 100.0;
562	else	565	else
563	lvl_mult = 1.0; /* no adjustment */	566	lvl_mult = 1.0; /* no adjustment */
564	}	567	}
565	else {	568	else
		569	{
566	if (skill->level)	570	if (skill->level)
567	lvl_mult = ((float) skill->arch->clone.level * (float) op_lvl) / ((float) skill->level * 100.0);	571	lvl_mult = ((float) skill->arch->level * (float) op_lvl) / ((float) skill->level * 100.0);
568	else	572	else
569	lvl_mult = 1.0;	573	lvl_mult = 1.0;
570	}	574	}
571	} else {
572	/* Don't divide by zero here! */
573	lvl_mult = (float) op_lvl / (float) (skill->level?skill->level:1);
574	}	575	}
		576	else
		577	{
		578	/* Don't divide by zero here! */
		579	lvl_mult = (float) op_lvl / (float) max (1, skill->level);
		580	}
575	}	581	}
576		582
577	/* assemble the exp total, and return value */	583	/* assemble the exp total, and return value */
578		584
579	value = base * lvl_mult;	585	value = base * lvl_mult;
		586	if (value < 1)
580	if (value < 1) value=1; /* Always give at least 1 exp point */	587	value = 1; /* Always give at least 1 exp point */
581		588
582	#ifdef SKILL_UTIL_DEBUG	589	#ifdef SKILL_UTIL_DEBUG
583	LOG(llevDebug,"calc_skill_exp(): who: %s(lvl:%d) op:%s(lvl:%d)\n",	590	LOG (llevDebug, "calc_skill_exp(): who: %s(lvl:%d) op:%s(lvl:%d)\n", who->name, skill->level, op->name, op_lvl);
584	who->name,skill->level,op->name,op_lvl);
585	#endif	591	#endif
586	return ( (int) value);	592	return ((int) value);
587	}	593	}
588		594
589	/* Learn skill. This inserts the requested skill in the player's	595	/* Learn skill. This inserts the requested skill in the player's
590	* inventory. The skill field of the scroll should have the	596	* inventory. The skill field of the scroll should have the
591	* exact name of the requested skill.	597	* exact name of the requested skill.
592	* This one actually teaches the player the skill as something	598	* This one actually teaches the player the skill as something
593	* they can equip.	599	* they can equip.
594	* Return 0 if the player knows the skill, 1 if the	600	* Return 0 if the player knows the skill, 1 if the
595	* player learns the skill, 2 otherwise.	601	* player learns the skill, 2 otherwise.
596	*/	602	*/
597
598	int	603	int
599	learn_skill (object pl, object scroll) {	604	learn_skill (object pl, object scroll)
600	object *tmp;	605	{
601
602	if (!scroll->skill) {	606	if (!scroll->skill)
		607	{
603	LOG(llevError,"skill scroll %s does not have skill pointer set.\n", &scroll->name);	608	LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name);
604	return 2;	609	return 2;
605	}	610	}
606		611
607	/* can't use find_skill_by_name because we want skills the player knows	612	object *tmp = find_skill (pl, scroll->skill);
608	* but can't use natively.
609	*/
610		613
611	for (tmp=pl->inv; tmp!=NULL; tmp=tmp->below)
612	if (tmp->type == SKILL && !strncasecmp(scroll->skill, tmp->skill, strlen(scroll->skill))) break;
613
614	/* player already knows it */	614	/* player already knows it */
615	if (tmp && QUERY_FLAG(tmp, FLAG_CAN_USE_SKILL)) return 0;	615	if (tmp && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL))
		616	return 0;
616		617
617
618
619	/* now a random change to learn, based on player Int.	618	/* now a random change to learn, based on player Int.
620	* give bonus based on level - otherwise stupid characters	619	* give bonus based on level - otherwise stupid characters
621	* might never be able to learn anything.	620	* might never be able to learn anything.
622	*/	621	*/
623	if(random_roll(0, 99, pl, PREFER_LOW)>(learn_spell[pl->stats.Int] + (pl->level/5)))	622	if (random_roll (0, 99, pl, PREFER_LOW) > (learn_spell[pl->stats.Int] + (pl->level / 5)))
624	return 2; /* failure :< */	623	return 2; /* failure :< */
625		624
626	if (!tmp)	625	if (!tmp)
627	tmp = give_skill_by_name(pl, scroll->skill);	626	tmp = give_skill_by_name (pl, scroll->skill);
628		627
629	if (!tmp) {	628	if (!tmp)
		629	{
630	LOG(llevError,"skill scroll %s does not have valid skill name (%s).\n", &scroll->name, &scroll->skill);	630	LOG (llevError, "skill scroll %s does not have valid skill name (%s).\n", &scroll->name, &scroll->skill);
631	return 2;	631	return 2;
632	}	632	}
633		633
634	SET_FLAG(tmp, FLAG_CAN_USE_SKILL);	634	SET_FLAG (tmp, FLAG_CAN_USE_SKILL);
635	link_player_skills(pl);	635
636	return 1;	636	return 1;
637	}	637	}
638		638
639	/* Gives a percentage clipped to 0% -> 100% of a/b. */	639	/* Gives a percentage clipped to 0% -> 100% of a/b. */
640	/* Probably belongs in some global utils-type file? */	640	/* Probably belongs in some global utils-type file? */
		641	static int
641	static int clipped_percent(sint64 a, sint64 b)	642	clipped_percent (sint64 a, sint64 b)
642	{	643	{
643	int rv;	644	int rv;
644		645
645	if (b <= 0)	646	if (b <= 0)
646	return 0;	647	return 0;
647		648
648	rv = (int)((100.0f * ((float)a) / ((float)b) ) + 0.5f);	649	rv = (int) ((100.0f * ((float) a) / ((float) b)) + 0.5f);
649		650
650	if (rv < 0)	651	if (rv < 0)
651	return 0;	652	return 0;
652	else if (rv > 100)	653	else if (rv > 100)
653	return 100;	654	return 100;
654		655
655	return rv;	656	return rv;
656	}	657	}
657		658
658	/* show_skills() - Meant to allow players to examine	659	/* show_skills() - Meant to allow players to examine
659	* their current skill list.	660	* their current skill list.
…		…
663	* Note this function is a bit more complicated becauase we	664	* Note this function is a bit more complicated becauase we
664	* we want ot sort the skills before printing them. If we	665	* we want ot sort the skills before printing them. If we
665	* just dumped this as we found it, this would be a bit	666	* just dumped this as we found it, this would be a bit
666	* simpler.	667	* simpler.
667	*/	668	*/
668		669	//TODO: egad, do it in perl, do not suffer from the big buffer on stack, make it one single drawinfo.
		670	void
669	void show_skills(object op, const char search) {	671	show_skills (object pl, const char search)
670	object *tmp=NULL;	672	{
671	char buf[MAX_BUF];
672	const char *cp;	673	const char *cp;
673	int i,num_skills_found=0;	674	int i, num_skills_found = 0;
674	static const char *const periods = "........................................";	675	const char *const periods = ".............................."; // 30
		676
675	/* Need to have a pointer and use strdup for qsort to work properly */	677	/* Need to have a pointer and use strdup for qsort to work properly */
676	char skills[NUM_SKILLS][MAX_BUF];	678	char skills[NUM_SKILLS][128]; // d'oh
677		679
		680	object *op = pl->contr->ob;
678		681
679	for (tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	682	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		683	{
680	if (tmp->type == SKILL) {	684	if (tmp->type == SKILL)
681	if ( search && strstr(tmp->name,search)==NULL ) continue;	685	{
		686	if (search && !tmp->name.contains (search))
		687	continue;
		688
		689	char buf[30];
		690
682	/* Basically want to fill this out to 40 spaces with periods */	691	/* Basically want to fill this out to 30 spaces with periods */
683	sprintf(buf,"%s%s", &tmp->name, periods);	692	snprintf (buf, sizeof (buf), "%s%s", &tmp->name, periods);
684	buf[40] = 0;
685		693
686	if (settings.permanent_exp_ratio) {	694	if (settings.permanent_exp_ratio)
687	sprintf(skills[num_skills_found++],"%slvl:%3d (xp:%lld/%lld/%d%%)",	695	snprintf (skills[num_skills_found++], sizeof (skills [0]), "%slvl:%3d (xp:%" PRId64 "/%" PRId64 "/%d%%)",
688	buf,tmp->level,	696	buf, tmp->level, tmp->stats.exp,
689	(long long)tmp->stats.exp,
690	(long long)level_exp(tmp->level+1, op->expmul),
691	clipped_percent(tmp->perm_exp,tmp->stats.exp));	697	level_exp (tmp->level + 1, op->expmul), clipped_percent (tmp->perm_exp, tmp->stats.exp));
692	} else {	698	else
693	sprintf(skills[num_skills_found++], "%slvl:%3d (xp:%lld/%lld)",	699	snprintf (skills[num_skills_found++], sizeof (skills [0]), "%slvl:%3d (xp:%" PRId64 "/%" PRId64 ")",
694	buf,tmp->level,	700	buf, tmp->level, tmp->stats.exp, level_exp (tmp->level + 1, op->expmul));
695	(long long)tmp->stats.exp,	701
696	(long long)level_exp(tmp->level+1, op->expmul));
697	}
698	/* I don't know why some characters get a bunch of skills, but	702	/* I don't know why some characters get a bunch of skills, but
699	* it sometimes happens (maybe a leftover from bugier earlier code	703	* it sometimes happens (maybe a leftover from bugier earlier code
700	* and those character are still about). In any case, lets handle	704	* and those character are still about). In any case, lets handle
701	* it so it doesn't crash the server - otherwise, one character may	705	* it so it doesn't crash the server - otherwise, one character may
702	* crash the server numerous times.	706	* crash the server numerous times.
703	*/	707	*/
704	if (num_skills_found >= NUM_SKILLS) {	708	if (num_skills_found >= NUM_SKILLS)
		709	{
705	new_draw_info(NDI_RED, 0, op, "Your character has too many skills.");	710	new_draw_info (NDI_RED, 0, op, "Your character has too many skills.");
706	new_draw_info(NDI_RED, 0, op, "Something isn't right - contact the server admin");	711	new_draw_info (NDI_RED, 0, op, "Something isn't right - contact the server admin");
707	break;	712	break;
708	}	713	}
709	}	714	}
710	}	715	}
711		716
712	clear_win_info(op);	717	dynbuf_text msg (4096, 1024);
713	new_draw_info(NDI_UNIQUE, 0,op,"Player skills:");
714	if (num_skills_found > 1) qsort(skills, num_skills_found, MAX_BUF, (int ()(const void, const void*))strcmp);
715		718
		719	msg << "T<Player skills:>\n\n";
		720	if (num_skills_found > 1)
		721	qsort (skills, num_skills_found, sizeof (skills [0]), (int ()(const void , const void *)) std::strcmp);
		722
716	for (i=0; i<num_skills_found; i++) {	723	for (i = 0; i < num_skills_found; i++)
717	new_draw_info(NDI_UNIQUE, 0, op, skills[i]);	724	msg << " C<" << skills [i] << ">\n";
718	}
719		725
720	new_draw_info_format(NDI_UNIQUE, 0, op,	726	msg << "\nYou can handle " << op->level / 5 + 5 << " weapon improvements.\r";
721	"You can handle %d weapon improvements.",op->level/5+5);
722		727
723	cp = determine_god(op);	728	cp = determine_god (op);
724	new_draw_info_format(NDI_UNIQUE, 0, op,	729	msg << "You worship " << (cp ? cp : "no god at current time") << ".\r";
725	"You worship %s.", cp?cp:"no god at current time");
726		730
727	new_draw_info_format(NDI_UNIQUE,0,op, "Your equipped item power is %d out of %d\n",	731	msg << "Your equipped item power is " << (int)op->contr->item_power
728	op->contr->item_power, (int) (op->level * settings.item_power_factor));	732	<< " out of " << int (op->level * settings.item_power_factor)
		733	<< ".\n";
		734
		735	pl->contr->infobox (MSG_CHANNEL ("skills"), msg);
729	}	736	}
730		737
731	/* use_skill() - similar to invoke command, it executes the skill in the	738	/* use_skill() - similar to invoke command, it executes the skill in the
732	* direction that the user is facing. Returns false if we are unable to	739	* direction that the user is facing. Returns false if we are unable to
733	* change to the requested skill, or were unable to use the skill properly.	740	* change to the requested skill, or were unable to use the skill properly.
734	* This is tricky because skills can have spaces. We basically roll	741	* This is tricky because skills can have spaces. We basically roll
735	* our own find_skill_by_name so we can try to do better string matching.	742	* our own find_skill_by_name so we can try to do better string matching.
736	*/	743	*/
737		744	int
738	int use_skill(object op, const char string) {	745	use_skill (object op, const char string)
		746	{
739	object *skop;	747	object *skop;
740	size_t len;	748	size_t len;
741		749
742	if (!string) return 0;	750	if (!string)
		751	return 0;
743		752
744	for (skop = op->inv; skop != NULL; skop=skop->below) {	753	for (skop = op->inv; skop; skop = skop->below)
		754	{
		755	if (skop->type == SKILL
745	if (skop->type == SKILL && QUERY_FLAG(skop, FLAG_CAN_USE_SKILL) &&	756	&& QUERY_FLAG (skop, FLAG_CAN_USE_SKILL)
746	!strncasecmp(string, skop->skill, MIN(strlen(string), strlen(skop->skill))))	757	&& !strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))
747	break;	758	break;
748	else if (skop->type == SKILL_TOOL &&	759	else if (skop->type == SKILL_TOOL
749	!strncasecmp(string, skop->skill, MIN(strlen(string), strlen(skop->skill))))	760	&& !strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))
750	break;	761	break;
751	}	762	}
		763
752	if (!skop) {	764	if (!skop)
753	new_draw_info_format(NDI_UNIQUE, 0, op,	765	{
754	"Unable to find skill %s", string);	766	new_draw_info_format (NDI_UNIQUE, 0, op, "Unable to find skill %s", string);
755	return 0;	767	return 0;
756	}	768	}
757		769
758	len=strlen(skop->skill);	770	len = strlen (skop->skill);
759		771
760	/* All this logic goes and skips over the skill name to find any	772	/* All this logic goes and skips over the skill name to find any
761	* options given to the skill. Its pretty simple - if there	773	* options given to the skill. Its pretty simple - if there
762	* are extra parameters (as deteremined by string length), we	774	* are extra parameters (as deteremined by string length), we
763	* want to skip over any leading spaces.	775	* want to skip over any leading spaces.
764	*/	776	*/
765	if(len>=strlen(string)) {	777	if (len >= strlen (string))
766	string=NULL;	778	string = NULL;
767	} else {	779	else
		780	{
768	string += len;	781	string += len;
769	while(*string==0x20) string++;	782	while (*string == 0x20)
770	if(strlen(string)==0) string = NULL;	783	string++;
771	}	784
		785	if (strlen (string) == 0)
		786	string = NULL;
772		787	}
		788
773	#ifdef SKILL_UTIL_DEBUG	789	#ifdef SKILL_UTIL_DEBUG
774	LOG(llevDebug,"use_skill() got skill: %s\n",sknum>-1?skills[sknum].name:"none");	790	LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none");
775	#endif	791	#endif
776		792
777	/* Change to the new skill, then execute it. */
778	if(do_skill(op,op,skop, op->facing,string)) return 1;	793	if (do_skill (op, op, skop, op->facing, string))
779
780	return 0;	794	return 1;
781	}
782		795
		796	return 0;
		797	}
783		798
		799	static bool
		800	hth_skill_p (object *skill)
		801	{
		802	return (skill_flags [skill->subtype] & (SF_COMBAT \| SF_NEED_WEAPON)) == SF_COMBAT;
		803	}
784		804
785	/* This finds the best unarmed skill the player has, and returns	805	/* This finds the first unarmed skill the player has, and returns it.
786	* it. Best can vary a little - we consider clawing to always
787	* be the best for dragons.
788	* This could be more intelligent, eg, look at the skill level
789	* of the skill and go from there (eg, a level 40 puncher is
790	* is probably better than level 1 karate). OTOH, if you
791	* don't bother to set up your skill properly, that is the players
792	* problem (although, it might be nice to have a preferred skill
793	* field the player can set.
794	* Unlike the old code, we don't give out any skills - it is
795	* possible you just don't have any ability to get into unarmed
796	* combat. If everyone race/class should have one, this should
797	* be handled in the starting treasurelists, not in the code.
798	*/	806	*/
		807	static object *
799	static object find_best_player_hth_skill(object op)	808	find_player_hth_skill (object *op)
800	{	809	{
801	object tmp, best_skill=NULL;
802	int dragon = is_dragon_pl(op), last_skill=sizeof(unarmed_skills), i;
803
804	for (tmp=op->inv; tmp; tmp=tmp->below) {	810	for (object *tmp = op->inv; tmp; tmp = tmp->below)
805	if (tmp->type == SKILL) {	811	if (tmp->type == SKILL && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL) && hth_skill_p (tmp))
806	if (dragon && tmp->subtype == SK_CLAWING) return tmp;	812	return tmp;
807		813
808	/* The order in the array is preferred order. So basically,	814	return 0;
809	* we just cut down the number to search - eg, if we find a skill
810	* early on in flame touch, then we only need to look into the unarmed_array
811	* to the entry before flame touch - don't care about the entries afterward,
812	* because they are infrerior skills.
813	* if we end up finding the best skill (i==0) might as well return
814	* right away - can't get any better than that.
815	*/
816	for (i=0; i<last_skill; i++) {
817	if (tmp->subtype == unarmed_skills[i] && QUERY_FLAG(tmp, FLAG_CAN_USE_SKILL)) {
818	best_skill = tmp;
819	last_skill = i;
820	if (i==0) return best_skill;
821	}
822	}
823	}
824	}
825	return best_skill;
826	}	815	}
827		816
828	/* do_skill_attack() - We have got an appropriate opponent from either	817	/* do_skill_attack() - We have got an appropriate opponent from either
829	* move_player_attack() or skill_attack(). In this part we get on with	818	* move_player_attack() or skill_attack(). In this part we get on with
830	* attacking, take care of messages from the attack and changes in invisible.	819	* attacking, take care of messages from the attack and changes in invisible.
…		…
832	* tmp is the targetted monster.	821	* tmp is the targetted monster.
833	* op is what is attacking	822	* op is what is attacking
834	* string is passed along to describe what messages to describe	823	* string is passed along to describe what messages to describe
835	* the damage.	824	* the damage.
836	*/	825	*/
837		826	static int
838	static int do_skill_attack(object tmp, object op, const char string, object skill) {	827	do_skill_attack (object tmp, object op, const char string, object skill)
839	int success;	828	{
840
841	if (INVOKE_OBJECT (SKILL_ATTACK, op, ARG_OBJECT (tmp), ARG_STRING (string), ARG_OBJECT (skill)))	829	if (INVOKE_OBJECT (SKILL_ATTACK, op, ARG_OBJECT (tmp), ARG_STRING (string), ARG_OBJECT (skill)))
842	return RESULT_INT (0);	830	return RESULT_INT (0);
843		831
844	/* For Players only: if there is no ready weapon, and no "attack" skill	832	/* For Players only: if there is no ready weapon, and no "attack" skill
845	* is readied either then try to find a skill for the player to use.	833	* is readied either then try to find a skill for the player to use.
846	* it is presumed that if skill is set, it is a valid attack skill (eg,	834	* it is presumed that if skill is set, it is a valid attack skill (eg,
847	* the caller should have set it appropriately). We still want to pass	835	* the caller should have set it appropriately). We still want to pass
848	* through that code if skill is set to change to the skill.	836	* through that code if skill is set to change to the skill.
849	*/	837	*/
850	if(op->type==PLAYER) {	838	if (player *pl = op->contr)
		839	{
		840	if (skill)
		841	op->change_skill (skill);
		842	else
		843	{
		844	if (!pl->combat_ob)
		845	{
851	if (!QUERY_FLAG(op,FLAG_READY_WEAPON)) {	846	if (QUERY_FLAG (op, FLAG_READY_WEAPON))
852	size_t i;
853
854	if (!skill) {
855	/* See if the players chosen skill is a combat skill, and use
856	* it if appropriate.
857	*/	847	{
858	if (op->chosen_skill) {	848	for (tmp = op->inv; tmp; tmp = tmp->below)
859	for (i=0; i<sizeof(unarmed_skills); i++)	849	if (tmp->type == WEAPON && QUERY_FLAG (tmp, FLAG_APPLIED))
860	if (op->chosen_skill->subtype == unarmed_skills[i]) {
861	skill = op->chosen_skill;
862	break;	850	break;
863	}	851
		852	if (!tmp)
		853	LOG (llevError, "Could not find applied weapon on %s\n", &op->name);
		854
		855	pl->combat_ob = tmp;
864	}	856	}
865	/* If we didn't find a skill above, look harder for a good skill */	857
866	if (!skill) {	858	if (!pl->combat_ob)
		859	{
		860	/* See if the players chosen skill is a combat skill, and use
		861	* it if appropriate.
		862	*/
		863	if (op->chosen_skill && hth_skill_p (op->chosen_skill))
		864	skill = op->chosen_skill;
		865	else
		866	{
867	skill = find_best_player_hth_skill(op);	867	skill = find_player_hth_skill (op);
868		868
869	if (!skill) {	869	if (!skill)
870	new_draw_info(NDI_BLACK, 0, op, "You have no unarmed combat skills!");	870	new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!");
871	return 0;	871	}
		872
		873	if (skill)
		874	{
		875	op->change_skill (0);
		876	apply_special (op, skill, AP_APPLY);
872	}	877	}
873	}	878	}
		879
		880	if (!pl->combat_ob)
874	}	881	{
875	if (skill != op->chosen_skill) {	882	LOG (llevError, "Could not find anything to attack on %s\n", &op->name);
876	/* now try to ready the new skill */
877	if(!change_skill(op,skill,0)) { /* oh oh, trouble! */
878	new_draw_info_format(NDI_UNIQUE, 0, tmp, "Couldn't change to skill %s", &skill->name);
879	return 0;	883	return 0;
880	}	884	}
881	}	885	}
882	} else {
883	/* Seen some crashes below where current_weapon is not set,
884	* even though the flag says it is. So if current weapon isn't set,
885	* do some work in trying to find the object to use.
886	*/
887	if (!op->current_weapon) {
888	object *tmp;
889		886
890	LOG(llevError,"Player %s does not have current weapon set but flag_ready_weapon is set\n",	887	if (!op->change_weapon (pl->combat_ob))
891	&op->name);
892	for (tmp=op->inv; tmp; tmp=tmp->below)
893	if (tmp->type == WEAPON && QUERY_FLAG(tmp, FLAG_APPLIED)) break;
894
895	if (!tmp) {
896	LOG(llevError,"Could not find applied weapon on %s\n",
897	&op->name);
898	op->current_weapon=NULL;
899	return 0;	888	return 0;
900	} else {
901	op->current_weapon = tmp;
902	}
903	}
904
905	/* Has ready weapon - make sure chosen_skill is set up properly */
906	if (!op->chosen_skill \|\| op->current_weapon->skill != op->chosen_skill->skill) {
907	change_skill(op, find_skill_by_name(op, op->current_weapon->skill), 1);
908	}
909	}	889	}
910	}
911		890
912	/* lose invisiblity/hiding status for running attacks */	891	/* lose invisiblity/hiding status for running attacks */
913		892	if (pl->tmp_invis)
914	if(op->type==PLAYER && op->contr->tmp_invis) {	893	{
915	op->contr->tmp_invis=0;	894	pl->tmp_invis = 0;
916	op->invisible=0;	895	op->invisible = 0;
917	op->hide=0;	896	op->flag [FLAG_HIDDEN] = 0;
918	update_object(op,UP_OBJ_FACE);	897	update_object (op, UP_OBJ_CHANGE);
		898	}
919	}	899	}
920		900
921	success = attack_ob(tmp,op);	901	int success = attack_ob (tmp, op);
922		902
923	/* print appropriate messages to the player */	903	/* print appropriate messages to the player */
924		904
925	if(success && string!=NULL && tmp && !QUERY_FLAG(tmp,FLAG_FREED)) {	905	if (success && string && tmp && !QUERY_FLAG (tmp, FLAG_FREED))
		906	{
926	if(op->type==PLAYER)	907	if (op->type == PLAYER)
927	new_draw_info_format(NDI_UNIQUE, 0,op,	908	new_draw_info_format (NDI_UNIQUE, 0, op, "You %s %s!", string, query_name (tmp));
928	"You %s %s!",string,query_name(tmp));
929	else if(tmp->type==PLAYER)	909	else if (tmp->type == PLAYER)
930	new_draw_info_format(NDI_UNIQUE, 0,tmp,	910	new_draw_info_format (NDI_UNIQUE, 0, tmp, "%s %s you!", query_name (op), string);
931	"%s %s you!",query_name(op),string);
932	}	911	}
		912
933	return success;	913	return success;
934	}	914	}
935
936		915
937	/* skill_attack() - Core routine for use when we attack using a skills	916	/* skill_attack() - Core routine for use when we attack using a skills
938	* system. In essence, this code handles	917	* system. In essence, this code handles
939	* all skill-based attacks, ie hth, missile and melee weapons should be	918	* all skill-based attacks, i.e. hth, missile and melee weapons should be
940	* treated here. If an opponent is already supplied by move_player(),	919	* treated here. If an opponent is already supplied by move_player(),
941	* we move right onto do_skill_attack(), otherwise we find if an	920	* we move right onto do_skill_attack(), otherwise we find if an
942	* appropriate opponent exists.	921	* appropriate opponent exists.
943	*	922	*
944	* This is called by move_player() and attack_hth()	923	* This is called by move_player() and attack_hth()
945	*	924	*
946	* Initial implementation by -bt thomas@astro.psu.edu	925	* Initial implementation by -bt thomas@astro.psu.edu
947	*/	926	*/
948		927	int
949	int skill_attack (object tmp, object pl, int dir, const char string, object skill) {	928	skill_attack (object tmp, object pl, int dir, const char string, object skill)
		929	{
950	sint16 tx,ty;	930	sint16 tx, ty;
951	mapstruct *m;	931	maptile *m;
952	int mflags;	932	int mflags;
953		933
		934	if (!dir)
954	if(!dir) dir=pl->facing;	935	dir = pl->facing;
		936
955	tx=freearr_x[dir];	937	tx = freearr_x[dir];
956	ty=freearr_y[dir];	938	ty = freearr_y[dir];
957		939
958	/* If we don't yet have an opponent, find if one exists, and attack.	940	/* If we don't yet have an opponent, find if one exists, and attack.
959	* Legal opponents are the same as outlined in move_player_attack()	941	* Legal opponents are the same as outlined in move_player_attack()
960	*/	942	*/
961		943	if (!tmp)
962	if(tmp==NULL) {	944	{
963	m = pl->map;	945	m = pl->map;
964	tx = pl->x + freearr_x[dir];	946	tx = pl->x + freearr_x[dir];
965	ty = pl->y + freearr_y[dir];	947	ty = pl->y + freearr_y[dir];
966		948
967	mflags = get_map_flags(m, &m, tx, ty, &tx, &ty);	949	mflags = get_map_flags (m, &m, tx, ty, &tx, &ty);
968	if (mflags & P_OUT_OF_MAP) return 0;	950	if (mflags & P_OUT_OF_MAP)
969
970	/* space must be blocked for there to be anything interesting to do */
971	if (!OB_TYPE_MOVE_BLOCK(pl, GET_MAP_MOVE_BLOCK(m, tx,ty))) return 0;
972
973	for(tmp=get_map_ob(m, tx, ty); tmp; tmp=tmp->above)
974	if((QUERY_FLAG(tmp,FLAG_ALIVE) && tmp->stats.hp>=0)
975	\|\| QUERY_FLAG(tmp, FLAG_CAN_ROLL)
976	\|\| tmp->type==LOCKED_DOOR ) {
977	/* Don't attack party members */
978	if((pl->type==PLAYER && tmp->type==PLAYER) && (pl->contr->party!=NULL
979	&& pl->contr->party==tmp->contr->party))
980	return 0;
981	break;
982	}
983	}
984	if (!tmp) {
985	if(pl->type==PLAYER)
986	new_draw_info(NDI_UNIQUE, 0,pl,"There is nothing to attack!");
987	return 0;	951	return 0;
		952
		953	/* space must be blocked for there to be anything interesting to do */
		954	if (!OB_TYPE_MOVE_BLOCK (pl, GET_MAP_MOVE_BLOCK (m, tx, ty)))
		955	return 0;
		956
		957	for (tmp = GET_MAP_OB (m, tx, ty); tmp; tmp = tmp->above)
		958	if ((QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->stats.hp >= 0) \|\| QUERY_FLAG (tmp, FLAG_CAN_ROLL) \|\| tmp->type == LOCKED_DOOR)
		959	{
		960	/* Don't attack party members */
		961	if ((pl->type == PLAYER && tmp->type == PLAYER) && (pl->contr->party != NULL && pl->contr->party == tmp->contr->party))
		962	return 0;
		963
		964	break;
		965	}
		966	}
		967
		968	if (!tmp)
988	}	969	{
		970	if (pl->type == PLAYER)
		971	new_draw_info (NDI_UNIQUE, 0, pl, "There is nothing to attack!");
989		972
		973	return 0;
		974	}
		975
990	return do_skill_attack(tmp,pl,string, skill);	976	return do_skill_attack (tmp, pl, string, skill);
991	}	977	}
992
993		978
994	/* attack_hth() - this handles all hand-to-hand attacks -b.t. */	979	/* attack_hth() - this handles all hand-to-hand attacks -b.t. */
		980
995	/* July 5, 1995 - I broke up attack_hth() into 2 parts. In the first	981	/* July 5, 1995 - I broke up attack_hth() into 2 parts. In the first
996	* (attack_hth) we check for weapon use, etc in the second (the new	982	* (attack_hth) we check for weapon use, etc in the second (the new
997	* function skill_attack() we actually attack.	983	* function skill_attack() we actually attack.
998	*/	984	*/
999		985	static int
1000	static int attack_hth(object pl, int dir, const char string, object *skill) {	986	attack_hth (object pl, int dir, const char string, object *skill)
		987	{
1001	object enemy=NULL,weapon;	988	object enemy = NULL, weapon;
1002		989
1003	if(QUERY_FLAG(pl, FLAG_READY_WEAPON))	990	if (QUERY_FLAG (pl, FLAG_READY_WEAPON))
1004	for(weapon=pl->inv;weapon;weapon=weapon->below) {	991	for (weapon = pl->inv; weapon; weapon = weapon->below)
		992	{
1005	if (weapon->type==WEAPON && QUERY_FLAG(weapon, FLAG_APPLIED)) {	993	if (weapon->type == WEAPON && QUERY_FLAG (weapon, FLAG_APPLIED))
		994	{
1006	CLEAR_FLAG(weapon,FLAG_APPLIED);	995	CLEAR_FLAG (weapon, FLAG_APPLIED);
1007	CLEAR_FLAG(pl,FLAG_READY_WEAPON);	996	CLEAR_FLAG (pl, FLAG_READY_WEAPON);
1008	fix_player(pl);	997	pl->update_stats ();
1009	if(pl->type==PLAYER) {	998	if (pl->type == PLAYER)
		999	{
1010	new_draw_info(NDI_UNIQUE, 0,pl,"You unwield your weapon in order to attack.");	1000	new_draw_info (NDI_UNIQUE, 0, pl, "You unwield your weapon in order to attack.");
1011	esrv_update_item(UPD_FLAGS, pl, weapon);	1001	esrv_update_item (UPD_FLAGS, pl, weapon);
1012	}	1002	}
		1003
1013	break;	1004	break;
1014	}	1005	}
1015	}	1006	}
		1007
1016	return skill_attack(enemy,pl,dir,string, skill);	1008	return skill_attack (enemy, pl, dir, string, skill);
1017	}	1009	}
1018
1019		1010
1020	/* attack_melee_weapon() - this handles melee weapon attacks -b.t.	1011	/* attack_melee_weapon() - this handles melee weapon attacks -b.t.
1021	* For now we are just checking to see if we have a ready weapon here.	1012	* For now we are just checking to see if we have a ready weapon here.
1022	* But there is a real neato possible feature of this scheme which	1013	* But there is a real neato possible feature of this scheme which
1023	* bears mentioning:	1014	* bears mentioning:
1024	* Since we are only calling this from do_skill() in the future	1015	* Since we are only calling this from do_skill() in the future
1025	* we may make this routine handle 'special' melee weapons attacks	1016	* we may make this routine handle 'special' melee weapons attacks
1026	* (like disarming manuever with sai) based on player SK_level and	1017	* (like disarming manuever with sai) based on player SK_level and
1027	* weapon type.	1018	* weapon type.
1028	*/	1019	*/
1029		1020	static int
1030	static int attack_melee_weapon(object op, int dir, const char string, object *skill) {	1021	attack_melee_weapon (object op, int dir, const char string, object *skill)
		1022	{
1031		1023
1032	if(!QUERY_FLAG(op, FLAG_READY_WEAPON)) {	1024	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))
		1025	{
1033	if(op->type==PLAYER)	1026	if (op->type == PLAYER)
1034	new_draw_info(NDI_UNIQUE, 0,op,"You have no ready weapon to attack with!");	1027	new_draw_info (NDI_UNIQUE, 0, op, "You have no ready weapon to attack with!");
		1028
1035	return 0;	1029	return 0;
1036	}	1030	}
		1031
1037	return skill_attack(NULL,op,dir,string, skill);	1032	return skill_attack (NULL, op, dir, string, skill);
1038
1039	}	1033	}
		1034

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Comparing deliantra/server/server/skill_util.C (file contents): Revision 1.7 by root, Sun Sep 3 00:18:42 2006 UTC vs. Revision 1.73 by root, Thu Jan 1 19:42:43 2009 UTC

Diff Legend

Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.7 by root, Sun Sep 3 00:18:42 2006 UTC vs.
Revision 1.73 by root, Thu Jan 1 19:42:43 2009 UTC