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

Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.48 by root, Mon May 14 19:56:45 2007 UTC vs.
Revision 1.97 by root, Thu Apr 15 00:36:51 2010 UTC

…		…
1	/*	1	/*
2	* CrossFire, A Multiplayer game	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	*	3	*
4	* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team	4	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	* Copryight (C) 2002 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2002 Mark Wedel & Crossfire Development Team
6	* Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
7	*	7	*
8	* 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
9	* 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
10	* the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
11	* (at your option) any later version.	11	* option) any later version.
12	*	12	*
13	* 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,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License for more details.	16	* GNU General Public License for more details.
17	*	17	*
18	* 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
19	* 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
20	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
21	*	21	*
22	* 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>
23	*/	23	*/
24		24
25	/* 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. */
26		26
27	/* Reconfigured skills code to allow linking of skills to experience	27	/* Reconfigured skills code to allow linking of skills to experience
51	# define def(uc, flags) flags,	51	# define def(uc, flags) flags,
52	# include "skillinc.h"	52	# include "skillinc.h"
53	# undef def	53	# undef def
54	};	54	};
55		55
		56	vector<object_ptr> skillvec;
		57
56	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);
57	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);
58		60
59	/* init_skills basically just sets up the skill_names table	61	/* init_skills basically just sets up the skill_names table
60	* above. The index into the array is set up by the	62	* above. The index into the array is set up by the
61	* subtypes.	63	* subtypes.
62	*/	64	*/
63	void	65	void
64	init_skills (void)	66	init_skills ()
65	{	67	{
66	for (archetype *at = first_archetype; at; at = at->next)	68	// nop
67	if (at->clone.type == SKILL)	69	}
		70
		71	void
		72	add_skill_archetype (object *o)
		73	{
		74	printf ("<%s><%s>\n", &o->name, &o->skill);//D
		75
		76	assert (("skill name must equal skill skill", o->name == o->skill));
		77
		78	for (vector<object_ptr>::iterator i = skillvec.begin (); i != skillvec.end (); ++i)
		79	if ((*i)->name == o->name)
68	{	80	{
69	if (skill_names[at->clone.subtype])	81	// replace existing entry
70	LOG (llevError, "init_skills: multiple skill using same subtype %d, %s, %s\n",	82	SKILL_INDEX (o) = i - skillvec.begin ();
71	at->clone.subtype, &skill_names[at->clone.subtype], &at->clone.skill);	83	*i = o;
72	else	84	return;
73	skill_names[at->clone.subtype] = at->clone.skill;
74	}	85	}
75		86
76	/* This isn't really an error if there is no skill subtype set, but	87	// add new entry
77	* checking for this may catch some user errors.	88	assert (("only CS_NUM_SKILLS skills supported by client protocol", skillvec.size () < CS_NUM_SKILLS));
78	*/	89	SKILL_INDEX (o) = skillvec.size ();
79	for (int i = 1; i < NUM_SKILLS; i++)	90	skillvec.push_back (o);
80	if (!skill_names[i])
81	LOG (llevError, "init_skills: skill subtype %d doesn't have a name?\n", i);
82	}	91	}
83		92
84	/* This function goes through the player inventory and sets	93	/* This function goes through the player inventory and sets
85	* up the last_skills[] array in the player object.	94	* up the last_skills[] array in the player object.
86	* the last_skills[] is used to more quickly lookup skills -	95	* the last_skills[] is used to more quickly lookup skills -
87	* mostly used for sending exp.	96	* mostly used for sending exp.
88	*/	97	*/
89	void	98	void
90	link_player_skills (object *op)	99	player::link_skills ()
91	{	100	{
		101	for (int i = 0; i < CS_NUM_SKILLS; ++i)
		102	last_skill_ob [i] = 0;
		103
92	for (object *tmp = op->inv; tmp; tmp = tmp->below)	104	for (object *tmp = ob->inv; tmp; tmp = tmp->below)
93	if (tmp->type == SKILL)	105	if (tmp->type == SKILL)
94	{	106	{
95	/* This is really a warning, hence no else below */	107	int idx = SKILL_INDEX (tmp);
96	if (op->contr->last_skill_ob[tmp->subtype] && op->contr->last_skill_ob[tmp->subtype] != tmp)
97	LOG (llevError, "Multiple skills with the same subtype? %s, %s\n",
98	&op->contr->last_skill_ob[tmp->subtype]->skill, &tmp->skill);
99		108
100	if (tmp->subtype >= NUM_SKILLS)	109	assert (IN_RANGE_EXC (idx, 0, CS_NUM_SKILLS));
101	LOG (llevError, "Invalid subtype number %d (range 0-%d)\n", tmp->subtype, NUM_SKILLS);	110
102	else	111	if (last_skill_ob [idx] != tmp)
103	{	112	{
104	op->contr->last_skill_ob[tmp->subtype] = tmp;	113	last_skill_ob [idx] = tmp;
105	op->contr->ns->last_skill_exp[tmp->subtype] = -1; //TODO: this should go	114	if (ns)
		115	ns->last_skill_exp [idx] = -1;
106	}	116	}
107	}	117	}
108	}	118	}
109		119
		120	static object *
		121	find_skill (object *who, shstr_cmp name)
		122	{
		123	if (who->chosen_skill
		124	&& who->chosen_skill->skill == name
		125	&& who->chosen_skill->type == SKILL)
		126	return who->chosen_skill;
		127
		128	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		129	if (tmp->skill == name && tmp->type == SKILL)
		130	return splay (tmp);
		131
		132	return 0;
		133	}
		134
		135	object *
		136	player::find_skill (shstr_cmp name) const
		137	{
		138	// might want to use last_skill_obj at one point, or maybe not
		139	return ::find_skill (ob, name);
		140	}
		141
110	/* This returns the skill pointer of the given name (the	142	/* This returns the skill pointer of the given name (the
111	* one that accumlates exp, has the level, etc).	143	* one that accumulates exp, has the level, etc).
112	*	144	*
113	* It is presumed that the player will be needing to actually	145	* It is presumed that the player will be needing to actually
114	* use the skill, so thus if use of the skill requires a skill	146	* use the skill, so thus if use of the skill requires a skill
115	* tool, this code will equip it.	147	* tool, this code will equip it.
116	*/	148	*/
117	object *	149	object *
118	find_skill_by_name (object who, const char name)	150	find_skill_by_name (object *who, shstr_cmp sh)
119	{	151	{
120	if (!name)	152	object *skill_tool = 0;
		153
		154	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		155	if (tmp->skill == sh)
		156	{
		157	if (tmp->type == SKILL && (tmp->flag [FLAG_CAN_USE_SKILL] \|\| tmp->flag [FLAG_APPLIED]))
		158	/* If this is a skill that can be used without applying tool, return it */
		159	return splay (tmp);
		160	/* Try to find appropriate skilltool. If the player has one already
		161	* applied, we try to keep using that one.
		162	*/
		163	else if (tmp->type == SKILL_TOOL && !skill_tool)
		164	skill_tool = tmp;
		165	}
		166
		167	if (!skill_tool)
121	return 0;	168	return 0;
122
123	object skill = 0, skill_tool = 0;
124
125	/* We make sure the length of the string in the object is greater
126	* in length than the passed string. Eg, if we have a skill called
127	* 'hi', we don't want to match if the user passed 'high'
128	*/
129	for (object *tmp = who->inv; tmp; tmp = tmp->below)
130	{
131	if (tmp->type == SKILL && !strncasecmp (name, tmp->skill, strlen (name)) && strlen (tmp->skill) >= strlen (name))
132	skill = tmp;
133
134	/* Try to find appropriate skilltool. If the player has one already
135	* applied, we try to keep using that one.
136	*/
137	else if (tmp->type == SKILL_TOOL && !strncasecmp (name, tmp->skill, strlen (name)) && strlen (tmp->skill) >= strlen (name))
138	{
139	if (QUERY_FLAG (tmp, FLAG_APPLIED))
140	skill_tool = tmp;
141	else if (!skill_tool \|\| !QUERY_FLAG (skill_tool, FLAG_APPLIED))
142	skill_tool = tmp;
143	}
144	}
145
146	/* If this is a skill that can be used without a tool, return it */
147	if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))
148	return skill;
149		169
150	/* Player has a tool to use the skill. If not applied, apply it -	170	/* Player has a tool to use the skill. If not applied, apply it -
151	* if not successful, return null. If they do have the skill tool	171	* if not successful, return null. If they do have the skill tool
152	* but not the skill itself, give it to them.	172	* but not the skill itself, give it to them.
153	*/	173	*/
154	if (skill_tool)	174	object *skill = who->give_skill (skill_tool->skill);
155	{
156	if (!skill)
157	{
158	skill = give_skill_by_name (who, skill_tool->skill);
159	link_player_skills (who);
160	}
161		175
162	if (!QUERY_FLAG (skill_tool, FLAG_APPLIED))	176	if (!skill_tool->flag [FLAG_APPLIED])
163	if (apply_special (who, skill_tool, 0))	177	if (!who->apply (splay (skill_tool)))
164	return 0;	178	return 0;
165		179
		180	return splay (skill);
		181	}
		182
		183	object *
		184	find_skill_by_name_fuzzy (object who, const char name)
		185	{
		186	if (name)
		187	for (object *tmp = who->inv; tmp; tmp = tmp->below)
		188	if ((tmp->type == SKILL \|\| tmp->type == SKILL_TOOL)
		189	&& tmp->skill.starts_with (name))
		190	if (object *skop = find_skill_by_name (who, tmp->skill))
166	return skill;	191	return skop;
167	}
168		192
169	return 0;	193	return 0;
170	}	194	}
171		195
172	/* This returns the skill pointer of the given name (the	196	/* This returns the skill pointer of the given name (the
173	* one that accumlates exp, has the level, etc).	197	* one that accumulates exp, has the level, etc).
174	*	198	*
175	* It is presumed that the player will be needing to actually	199	* It is presumed that the player will be needing to actually
176	* use the skill, so thus if use of the skill requires a skill	200	* use the skill, so thus if use of the skill requires a skill
177	* tool, this code will equip it.	201	* tool, this code will equip it.
178	*	202	*
179	* This code is basically the same as find_skill_by_name() above,	203	* This code is basically the same as find_skill_by_name() above,
180	* but instead a skill name, we search by matching number.	204	* but instead a skill name, we search by matching number.
181	* this replaces find_skill.	205	* this replaces find_skill.
		206	*
		207	* MUST NOT BE USED IN NEW CODE! (schmorp)
182	*/	208	*/
183	object *	209	object *
184	find_skill_by_number (object *who, int skillno)	210	find_skill_by_number (object *who, int skillno)
185	{	211	{
186	if (!IN_RANGE_EXC (skillno, 1, NUM_SKILLS))
187	return 0;
188
189	object skill = NULL, skill_tool = NULL;
190
191	for (object *tmp = who->inv; tmp; tmp = tmp->below)	212	for (object *tmp = who->inv; tmp; tmp = tmp->below)
192	{
193	if (tmp->type == SKILL && tmp->subtype == skillno)	213	if (tmp->type == SKILL && tmp->subtype == skillno)
194	skill = tmp;	214	if (object *skop = find_skill_by_name (who, tmp->skill))
		215	return skop;
195		216
196	/* Try to find appropriate skilltool. If the player has one already	217	return 0;
197	* applied, we try to keep using that one.	218	}
198	*/
199	//TODO: afaics, skill tools have subtype 0 always
200	else if (tmp->type == SKILL_TOOL && tmp->subtype == skillno)
201	{
202	if (QUERY_FLAG (tmp, FLAG_APPLIED))
203	skill_tool = tmp;
204	else if (!skill_tool \|\| !QUERY_FLAG (skill_tool, FLAG_APPLIED))
205	skill_tool = tmp;
206	}
207	}
208		219
209	/* If this is a skill that can be used without a tool, return it */	220	object *
210	if (skill && QUERY_FLAG (skill, FLAG_CAN_USE_SKILL))	221	object::give_skill (shstr_cmp name, bool can_use)
		222	{
		223	object *skill = find_skill (this, name);
		224
		225	if (!skill)
		226	skill = give_skill_by_name (this, name);
		227
		228	if (skill && can_use)
		229	skill->flag [FLAG_CAN_USE_SKILL] = true;
		230
211	return skill;	231	return skill;
212
213	/* Player has a tool to use the skill. If not applied, apply it -
214	* if not successful, return null. If they do have the skill tool
215	* but not the skill itself, give it to them.
216	*/
217	if (skill_tool)
218	{
219	if (!QUERY_FLAG (skill_tool, FLAG_APPLIED))
220	{
221	if (apply_special (who, skill_tool, 0))
222	return NULL;
223	}
224
225	if (!skill)
226	{
227	skill = give_skill_by_name (who, skill_tool->skill);
228	link_player_skills (who);
229	}
230
231	return skill;
232	}
233
234	return NULL;
235	}
236
237	/* This changes the objects skill to new_skill.
238	* note that this function doesn't always need to get used -
239	* you can now add skill exp to the player without the chosen_skill being
240	* set. This function is of most interest to players to update
241	* the various range information.
242	* return 1 on success, 0 on error
243	*/
244	int
245	change_skill (object who, object new_skill, int flag)
246	{
247	if (who->type != PLAYER)
248	return 0;
249
250	#if 0
251	// optimise this supposedly common case
252	if (new_skill == who->chosen_skill)
253	return 1;
254	#endif
255
256	if (!new_skill)
257	{
258	LOG (llevError \| logBacktrace, "change_skill called on %s with NULL skill\n",
259	who->debug_desc ());
260	return 0;
261	}
262
263	// the skill could be readied already because it is used by a weapon.
264	who->change_weapon (0);
265	new_skill->inv_splay ();
266
267	if (apply_special (who, new_skill, AP_APPLY))
268	return 0;
269
270	return 1;
271	}
272
273	/* This function just clears the chosen_skill and range_skill values
274	* in the player.
275	*/
276	void
277	clear_skill (object *who)
278	{
279	who->chosen_skill = 0;
280	CLEAR_FLAG (who, FLAG_READY_SKILL);
281
282	if (player *pl = who->contr)
283	if (pl->ranged_ob && pl->ranged_ob->type == SKILL)
284	pl->ranged_ob = 0;
285	}	232	}
286		233
287	/* do_skill() - Main skills use function-similar in scope to cast_spell().	234	/* do_skill() - Main skills use function-similar in scope to cast_spell().
288	* We handle all requests for skill use outside of some combat here.	235	* We handle all requests for skill use outside of some combat here.
289	* We require a separate routine outside of fire() so as to allow monsters	236	* We require a separate routine outside of fire() so as to allow monsters
…		…
296	*/	243	*/
297	int	244	int
298	do_skill (object op, object part, object skill, int dir, const char string)	245	do_skill (object op, object part, object skill, int dir, const char string)
299	{	246	{
300	int success = 0, exp = 0;	247	int success = 0, exp = 0;
301	int did_alc = 0;
302		248
303	if (!skill)	249	if (!skill)
304	return 0;	250	return 0;
305		251
306	/* The code below presumes that the skill points to the object that	252	/* The code below presumes that the skill points to the object that
…		…
331	/* Not 100% sure if this will work with new movement code -	277	/* Not 100% sure if this will work with new movement code -
332	* the levitation skill has move_type for flying, so when	278	* the levitation skill has move_type for flying, so when
333	* equipped, that should transfer to player, when not,	279	* equipped, that should transfer to player, when not,
334	* shouldn't.	280	* shouldn't.
335	*/	281	*/
336	if (QUERY_FLAG (skill, FLAG_APPLIED))	282	if (skill->flag [FLAG_APPLIED])
337	{	283	{
338	CLEAR_FLAG (skill, FLAG_APPLIED);	284	skill->clr_flag (FLAG_APPLIED);
339	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");	285	new_draw_info (NDI_UNIQUE, 0, op, "You come to earth.");
340	}	286	}
341	else	287	else
342	{	288	{
343	SET_FLAG (skill, FLAG_APPLIED);	289	skill->set_flag (FLAG_APPLIED);
344	new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!.");	290	new_draw_info (NDI_UNIQUE, 0, op, "You rise into the air!");
345	}	291	}
346		292
347	op->update_stats ();	293	op->update_stats ();
348	success = 1;	294	success = 1;
349	break;	295	break;
…		…
359	case SK_HIDING:	305	case SK_HIDING:
360	exp = success = hide (op, skill);	306	exp = success = hide (op, skill);
361	break;	307	break;
362		308
363	case SK_JUMPING:	309	case SK_JUMPING:
364	success = jump (op, dir, skill);	310	exp = success = jump (op, dir, skill);
365	break;	311	break;
366		312
367	case SK_INSCRIPTION:	313	case SK_INSCRIPTION:
368	exp = success = write_on_item (op, string, skill);	314	exp = success = write_on_item (op, string, skill);
369	break;	315	break;
…		…
431	case SK_LITERACY:	377	case SK_LITERACY:
432	case SK_WOODSMAN:	378	case SK_WOODSMAN:
433	/* first, we try to find a cauldron, and do the alchemy thing.	379	/* first, we try to find a cauldron, and do the alchemy thing.
434	* failing that, we go and identify stuff.	380	* failing that, we go and identify stuff.
435	*/	381	*/
		382	{
		383	bool found_cauldron = false;
		384
436	for (object next, tmp = GET_MAP_OB (op->map, op->x, op->y); tmp; tmp = next)	385	for (object next, tmp = GET_MAP_OB (op->map, op->x, op->y); tmp; tmp = next)
437	{	386	{
438	next = tmp->above;	387	next = tmp->above;
439		388
440	if (QUERY_FLAG (tmp, FLAG_IS_CAULDRON))	389	if (tmp->flag [FLAG_IS_CAULDRON])
441	{	390	{
		391	found_cauldron = true;
		392
		393	if (tmp->skill != skill->skill)
		394	{
		395	op->failmsgf ("You can't use the %s with the %s skill!",
		396	query_name (tmp),
		397	query_name (skill));
		398	break;
		399	}
		400
442	attempt_do_alchemy (op, tmp);	401	attempt_do_alchemy (op, tmp, skill);
443		402
444	if (QUERY_FLAG (tmp, FLAG_APPLIED))	403	if (tmp->flag [FLAG_APPLIED])
445	esrv_send_inventory (op, tmp);	404	esrv_send_inventory (op, tmp);
446
447	did_alc = 1;
448	}	405	}
449	}	406	}
450		407
451	if (did_alc == 0)	408	if (!found_cauldron)
452	exp = success = skill_ident (op, skill);	409	exp = success = skill_ident (op, skill);
453		410	}
454	break;	411	break;
455		412
456	case SK_DET_MAGIC:	413	case SK_DET_MAGIC:
457	case SK_DET_CURSE:	414	case SK_DET_CURSE:
458	exp = success = skill_ident (op, skill);	415	exp = success = skill_ident (op, skill);
…		…
489	case SK_SUMMONING:	446	case SK_SUMMONING:
490	case SK_CLIMBING:	447	case SK_CLIMBING:
491	new_draw_info (NDI_UNIQUE, 0, op, "This skill is already in effect.");	448	new_draw_info (NDI_UNIQUE, 0, op, "This skill is already in effect.");
492	break;	449	break;
493		450
		451	case SK_MINING:
		452	success = skill_mining (op, part, skill, dir, string);
		453	break;
		454
494	default:	455	default:
495	LOG (llevDebug, "%s attempted to use unknown skill: %d\n", query_name (op), op->chosen_skill->stats.sp);	456	LOG (llevDebug, "%s attempted to use unknown skill: %d\n", query_name (op), op->chosen_skill->stats.sp);
496	break;	457	break;
497	}	458	}
498		459
…		…
500	* Monsters have no skill use time because of the random nature in	461	* Monsters have no skill use time because of the random nature in
501	* which use_monster_skill is called already simulates this.	462	* which use_monster_skill is called already simulates this.
502	* If certain skills should take more/less time, that should be	463	* If certain skills should take more/less time, that should be
503	* in the code for the skill itself.	464	* in the code for the skill itself.
504	*/	465	*/
505
506	if (op->type == PLAYER)	466	if (op->type == PLAYER)
507	op->speed_left -= 1.f;	467	op->speed_left -= 1.f;
508		468
509	/* this is a good place to add experience for successfull use of skills.	469	/* this is a good place to add experience for successfull use of skills.
510	* Note that add_exp() will figure out player/monster experience	470	* Note that add_exp() will figure out player/monster experience
…		…
558	* If an object is not alive and magical we set the base exp higher to	518	* If an object is not alive and magical we set the base exp higher to
559	* help out exp awards for skill_ident skills. Also, if	519	* help out exp awards for skill_ident skills. Also, if
560	* an item is type RUNE, we give out exp based on stats.Cha	520	* an item is type RUNE, we give out exp based on stats.Cha
561	* and level (this was the old system) -b.t.	521	* and level (this was the old system) -b.t.
562	*/	522	*/
563
564	if (!op)	523	if (!op)
565	{ /* no item/creature */	524	{ /* no item/creature */
566	op_lvl = who->map->difficulty < 1 ? 1 : who->map->difficulty;	525	op_lvl = max (1, who->map->difficulty);
567	op_exp = 0;	526	op_exp = 0;
568	}	527	}
569	else if (op->type == RUNE \|\| op->type == TRAP)	528	else if (op->type == RUNE \|\| op->type == TRAP)
570	{ /* all traps. If stats.Cha > 1 we use that	529	{ /* all traps. If stats.Cha > 1 we use that
571	* for the amount of experience */	530	* for the amount of experience */
…		…
574	}	533	}
575	else	534	else
576	{ /* all other items/living creatures */	535	{ /* all other items/living creatures */
577	op_exp = op->stats.exp;	536	op_exp = op->stats.exp;
578	op_lvl = op->level;	537	op_lvl = op->level;
579	if (!QUERY_FLAG (op, FLAG_ALIVE))	538	if (!op->flag [FLAG_ALIVE])
580	{ /* for ident/make items */	539	op_lvl += 5 * abs (op->magic); /* for ident/make items */
581	op_lvl += 5 * abs (op->magic);
582	}
583	}	540	}
584		541
585	if (op_lvl < 1)	542	if (op_lvl < 1)
586	op_lvl = 1;	543	op_lvl = 1;
587		544
…		…
595	/* if skill really is a skill, then we can look at the skill archetype for	552	/* if skill really is a skill, then we can look at the skill archetype for
596	* bse reward value (exp) and level multiplier factor.	553	* bse reward value (exp) and level multiplier factor.
597	*/	554	*/
598	if (skill->type == SKILL)	555	if (skill->type == SKILL)
599	{	556	{
600	base += skill->arch->clone.stats.exp;	557	base += skill->arch->stats.exp;
601	if (settings.simple_exp)	558	if (settings.simple_exp)
602	{	559	{
603	if (skill->arch->clone.level)	560	if (skill->arch->level)
604	lvl_mult = (float) skill->arch->clone.level / 100.0;	561	lvl_mult = (float) skill->arch->level / 100.0;
605	else	562	else
606	lvl_mult = 1.0; /* no adjustment */	563	lvl_mult = 1.0; /* no adjustment */
607	}	564	}
608	else	565	else
609	{	566	{
610	if (skill->level)	567	if (skill->level)
611	lvl_mult = ((float) skill->arch->clone.level * (float) op_lvl) / ((float) skill->level * 100.0);	568	lvl_mult = ((float) skill->arch->level * (float) op_lvl) / ((float) skill->level * 100.0);
612	else	569	else
613	lvl_mult = 1.0;	570	lvl_mult = 1.0;
614	}	571	}
615	}	572	}
616	else	573	else
617	{	574	{
618	/* Don't divide by zero here! */	575	/* Don't divide by zero here! */
619	lvl_mult = (float) op_lvl / (float) (skill->level ? skill->level : 1);	576	lvl_mult = (float) op_lvl / (float) max (1, skill->level);
620	}	577	}
621	}	578	}
622		579
623	/* assemble the exp total, and return value */	580	/* assemble the exp total, and return value */
624		581
…		…
641	* player learns the skill, 2 otherwise.	598	* player learns the skill, 2 otherwise.
642	*/	599	*/
643	int	600	int
644	learn_skill (object pl, object scroll)	601	learn_skill (object pl, object scroll)
645	{	602	{
646	object *tmp;
647
648	if (!scroll->skill)	603	if (!scroll->skill)
649	{	604	{
650	LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name);	605	LOG (llevError, "skill scroll %s does not have skill pointer set.\n", &scroll->name);
651	return 2;	606	return 2;
652	}	607	}
653		608
654	/* can't use find_skill_by_name because we want skills the player knows	609	object *tmp = find_skill (pl, scroll->skill);
655	* but can't use natively.
656	*/
657
658	for (tmp = pl->inv; tmp != NULL; tmp = tmp->below)
659	if (tmp->type == SKILL && !strncasecmp (scroll->skill, tmp->skill, strlen (scroll->skill)))
660	break;
661		610
662	/* player already knows it */	611	/* player already knows it */
663	if (tmp && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL))	612	if (tmp && tmp->flag [FLAG_CAN_USE_SKILL])
664	return 0;	613	return 0;
665		614
666	/* now a random change to learn, based on player Int.	615	/* now a random change to learn, based on player Int.
667	* give bonus based on level - otherwise stupid characters	616	* give bonus based on level - otherwise stupid characters
668	* might never be able to learn anything.	617	* might never be able to learn anything.
…		…
677	{	626	{
678	LOG (llevError, "skill scroll %s does not have valid skill name (%s).\n", &scroll->name, &scroll->skill);	627	LOG (llevError, "skill scroll %s does not have valid skill name (%s).\n", &scroll->name, &scroll->skill);
679	return 2;	628	return 2;
680	}	629	}
681		630
682	SET_FLAG (tmp, FLAG_CAN_USE_SKILL);	631	tmp->set_flag (FLAG_CAN_USE_SKILL);
683	link_player_skills (pl);	632
684	return 1;	633	return 1;
685	}	634	}
686		635
687	/* Gives a percentage clipped to 0% -> 100% of a/b. */	636	/* Gives a percentage clipped to 0% -> 100% of a/b. */
688	/* Probably belongs in some global utils-type file? */	637	/* Probably belongs in some global utils-type file? */
…		…
712	* Note this function is a bit more complicated becauase we	661	* Note this function is a bit more complicated becauase we
713	* we want ot sort the skills before printing them. If we	662	* we want ot sort the skills before printing them. If we
714	* just dumped this as we found it, this would be a bit	663	* just dumped this as we found it, this would be a bit
715	* simpler.	664	* simpler.
716	*/	665	*/
717		666	//TODO: egad, do it in perl, do not suffer from the big buffer on stack, make it one single drawinfo.
718	void	667	void
719	show_skills (object op, const char search)	668	show_skills (object pl, const char search)
720	{	669	{
721	object *tmp = NULL;
722	char buf[MAX_BUF];
723	const char *cp;	670	const char *cp;
724	int i, num_skills_found = 0;	671	int i, num_skills_found = 0;
725	static const char *const periods = "........................................";	672	const char *const periods = ".............................."; // 30
726		673
727	/* Need to have a pointer and use strdup for qsort to work properly */	674	/* Need to have a pointer and use strdup for qsort to work properly */
728	char skills[NUM_SKILLS][MAX_BUF];	675	char skills[NUM_SKILLS][128]; // d'oh
729		676
		677	object *op = pl->contr->ob;
730		678
731	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	679	for (object *tmp = op->inv; tmp; tmp = tmp->below)
732	{	680	{
733	if (tmp->type == SKILL)	681	if (tmp->type == SKILL)
734	{	682	{
735	if (search && strstr (tmp->name, search) == NULL)	683	if (search && !tmp->name.contains (search))
736	continue;	684	continue;
		685
		686	char buf[30];
		687
737	/* Basically want to fill this out to 40 spaces with periods */	688	/* Basically want to fill this out to 30 spaces with periods */
738	sprintf (buf, "%s%s", &tmp->name, periods);	689	snprintf (buf, sizeof (buf), "%s%s", &tmp->name, periods);
739	buf[40] = 0;
740		690
741	if (settings.permanent_exp_ratio)	691	if (settings.permanent_exp_ratio)
742	{
743	sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%" PRId64 "/%" PRId64 "/%d%%)",	692	snprintf (skills[num_skills_found++], sizeof (skills [0]), "%slvl:%3d (xp:%" PRId64 "/%" PRId64 "/%d%%)",
744	buf, tmp->level, tmp->stats.exp,	693	buf, tmp->level, tmp->stats.exp,
745	level_exp (tmp->level + 1, op->expmul), clipped_percent (tmp->perm_exp, tmp->stats.exp));	694	level_exp (tmp->level + 1, op->expmul), clipped_percent (tmp->perm_exp, tmp->stats.exp));
746	}
747	else	695	else
748	{
749	sprintf (skills[num_skills_found++], "%slvl:%3d (xp:%" PRId64 "/%" PRId64 ")",	696	snprintf (skills[num_skills_found++], sizeof (skills [0]), "%slvl:%3d (xp:%" PRId64 "/%" PRId64 ")",
750	buf, tmp->level, tmp->stats.exp, level_exp (tmp->level + 1, op->expmul));	697	buf, tmp->level, tmp->stats.exp, level_exp (tmp->level + 1, op->expmul));
751	}	698
752	/* I don't know why some characters get a bunch of skills, but	699	/* I don't know why some characters get a bunch of skills, but
753	* it sometimes happens (maybe a leftover from bugier earlier code	700	* it sometimes happens (maybe a leftover from bugier earlier code
754	* and those character are still about). In any case, lets handle	701	* and those character are still about). In any case, lets handle
755	* it so it doesn't crash the server - otherwise, one character may	702	* it so it doesn't crash the server - otherwise, one character may
756	* crash the server numerous times.	703	* crash the server numerous times.
757	*/	704	*/
758	if (num_skills_found >= NUM_SKILLS)	705	if (num_skills_found >= NUM_SKILLS)
759	{	706	{
760	new_draw_info (NDI_RED, 0, op, "Your character has too many skills.");	707	new_draw_info (NDI_RED \| NDI_REPLY, 0, op, "Your character has too many skills.");
761	new_draw_info (NDI_RED, 0, op, "Something isn't right - contact the server admin");	708	new_draw_info (NDI_RED \| NDI_REPLY, 0, op, "Something isn't right - contact the server admin");
762	break;	709	break;
763	}	710	}
764	}	711	}
765	}	712	}
766		713
767	clear_win_info (op);	714	dynbuf_text &msg = msg_dynbuf; msg.clear ();
768	new_draw_info (NDI_UNIQUE, 0, op, "Player skills:");	715
		716	msg << "T<Player skills:>\n\n";
769	if (num_skills_found > 1)	717	if (num_skills_found > 1)
770	qsort (skills, num_skills_found, MAX_BUF, (int ()(const void , const void *)) std::strcmp);	718	qsort (skills, num_skills_found, sizeof (skills [0]), (int ()(const void , const void *)) std::strcmp);
771		719
772	for (i = 0; i < num_skills_found; i++)	720	for (i = 0; i < num_skills_found; i++)
773	new_draw_info (NDI_UNIQUE, 0, op, skills[i]);	721	msg << " C<" << skills [i] << ">\n";
774		722
775	new_draw_info_format (NDI_UNIQUE, 0, op, "You can handle %d weapon improvements.", op->level / 5 + 5);	723	msg << "\nYou can handle " << op->level / 5 + 5 << " weapon improvements.\r";
776		724
777	cp = determine_god (op);	725	cp = determine_god (op);
778	new_draw_info_format (NDI_UNIQUE, 0, op, "You worship %s.", cp ? cp : "no god at current time");	726	msg << "You worship " << (cp ? cp : "no god at current time") << ".\r";
779		727
780	new_draw_info_format (NDI_UNIQUE, 0, op, "Your equipped item power is %d out of %d\n",	728	msg << "Your equipped item power is " << (int)op->contr->item_power
781	op->contr->item_power, (int) (op->level * settings.item_power_factor));	729	<< " out of " << int (op->level * settings.item_power_factor)
		730	<< ".\n";
		731
		732	pl->contr->infobox (MSG_CHANNEL ("skills"), msg);
782	}	733	}
783		734
784	/* use_skill() - similar to invoke command, it executes the skill in the	735	/* use_skill() - similar to invoke command, it executes the skill in the
785	* direction that the user is facing. Returns false if we are unable to	736	* direction that the user is facing. Returns false if we are unable to
786	* change to the requested skill, or were unable to use the skill properly.	737	* change to the requested skill, or were unable to use the skill properly.
…		…
794	size_t len;	745	size_t len;
795		746
796	if (!string)	747	if (!string)
797	return 0;	748	return 0;
798		749
799	for (skop = op->inv; skop != NULL; skop = skop->below)	750	for (skop = op->inv; skop; skop = skop->below)
800	{	751	if ((skop->type == SKILL \|\| skop->type == SKILL_TOOL)
801	if (skop->type == SKILL && QUERY_FLAG (skop, FLAG_CAN_USE_SKILL) &&
802	!strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))	752	&& !strncmp (string, skop->skill, min (strlen (string), strlen (skop->skill))))
		753	{
		754	skop = find_skill_by_name (op, skop->skill);
803	break;	755	break;
804	else if (skop->type == SKILL_TOOL && !strncasecmp (string, skop->skill, MIN (strlen (string), (size_t) strlen (skop->skill))))
805	break;
806	}	756	}
		757
807	if (!skop)	758	if (!skop)
808	{	759	{
809	new_draw_info_format (NDI_UNIQUE, 0, op, "Unable to find skill %s", string);	760	op->failmsgf ("Unable to find skill %s.", string);
		761	return 0;
		762	}
		763
		764	if (!(skill_flags [skop->subtype] & SF_USE))
		765	{
		766	op->failmsgf (
		767	"You feel as if you wanted to do something funny, but you can't remember what. "
		768	"H<The %s skill cannot be C<use_skill>'ed - maybe you need to C<ready_skill> it, "
		769	"use it with some item, or it's always active.>",
		770	&skop->skill
		771	);
810	return 0;	772	return 0;
811	}	773	}
812		774
813	len = strlen (skop->skill);	775	len = strlen (skop->skill);
814		776
…		…
816	* options given to the skill. Its pretty simple - if there	778	* options given to the skill. Its pretty simple - if there
817	* are extra parameters (as deteremined by string length), we	779	* are extra parameters (as deteremined by string length), we
818	* want to skip over any leading spaces.	780	* want to skip over any leading spaces.
819	*/	781	*/
820	if (len >= strlen (string))	782	if (len >= strlen (string))
821	{
822	string = NULL;	783	string = NULL;
823	}
824	else	784	else
825	{	785	{
826	string += len;	786	string += len;
827	while (*string == 0x20)	787	while (*string == 0x20)
828	string++;	788	string++;
		789
829	if (strlen (string) == 0)	790	if (strlen (string) == 0)
830	string = NULL;	791	string = NULL;
831	}	792	}
832		793
833	#ifdef SKILL_UTIL_DEBUG	794	#ifdef SKILL_UTIL_DEBUG
834	LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none");	795	LOG (llevDebug, "use_skill() got skill: %s\n", sknum > -1 ? skills[sknum].name : "none");
835	#endif	796	#endif
836		797
837	/* Change to the new skill, then execute it. */
838	if (do_skill (op, op, skop, op->facing, string))	798	if (do_skill (op, op, skop, op->facing, string))
839	return 1;	799	return 1;
840		800
841	return 0;	801	return 0;
842	}	802	}
843		803
844	static bool	804	static bool
845	hth_skill_p (object *skill)	805	hth_skill_p (object *skill)
846	{	806	{
847	return (skill_flags [skill->subtype] & (SF_COMBAT \| SF_NEED_WEAPON)) == SF_COMBAT;	807	return (skill_flags [skill->subtype] & (SF_COMBAT \| SF_NEED_ITEM)) == SF_COMBAT;
848	}	808	}
849		809
850	/* This finds the first unarmed skill the player has, and returns it.	810	/* This finds the first unarmed skill the player has, and returns it.
851	*/	811	*/
852	static object *	812	static object *
853	find_player_hth_skill (object *op)	813	find_player_hth_skill (object *op)
854	{	814	{
855	for (object *tmp = op->inv; tmp; tmp = tmp->below)	815	for (object *tmp = op->inv; tmp; tmp = tmp->below)
856	if (tmp->type == SKILL && QUERY_FLAG (tmp, FLAG_CAN_USE_SKILL) && hth_skill_p (tmp))	816	if (tmp->type == SKILL && tmp->flag [FLAG_CAN_USE_SKILL] && hth_skill_p (tmp))
857	return tmp;	817	return tmp;
858		818
859	return 0;	819	return 0;
860	}	820	}
861		821
…		…
880	* the caller should have set it appropriately). We still want to pass	840	* the caller should have set it appropriately). We still want to pass
881	* through that code if skill is set to change to the skill.	841	* through that code if skill is set to change to the skill.
882	*/	842	*/
883	if (player *pl = op->contr)	843	if (player *pl = op->contr)
884	{	844	{
885	if (!pl->combat_ob)	845	if (skill)
886	{	846	{
887	if (QUERY_FLAG (op, FLAG_READY_WEAPON))	847	if (!op->apply (skill))
		848	return 0;
		849	}
		850	else
		851	{
		852	if (!pl->combat_ob)
888	{	853	{
889	for (tmp = op->inv; tmp; tmp = tmp->below)	854	if (op->flag [FLAG_READY_WEAPON])
890	if (tmp->type == WEAPON && QUERY_FLAG (tmp, FLAG_APPLIED))
891	break;
892
893	if (!tmp)
894	{	855	{
		856	for (tmp = op->inv; tmp; tmp = tmp->below)
		857	if (tmp->type == WEAPON && tmp->flag [FLAG_APPLIED])
		858	break;
		859
		860	if (!tmp)
895	LOG (llevError, "Could not find applied weapon on %s\n", &op->name);	861	LOG (llevError, "Could not find applied weapon on %s\n", &op->name);
896	return 0;	862
		863	pl->combat_ob = tmp;
897	}	864	}
898		865
899	change_skill (op, find_skill_by_name (op, tmp->skill), 1);	866	if (!pl->combat_ob)
900	}
901	else
902	{
903	if (!skill)
904	{	867	{
905	/* See if the players chosen skill is a combat skill, and use	868	/* See if the players chosen skill is a combat skill, and use
906	* it if appropriate.	869	* it if appropriate.
907	*/	870	*/
908	if (op->chosen_skill && hth_skill_p (op->chosen_skill))	871	if (op->chosen_skill && hth_skill_p (op->chosen_skill))
…		…
910	else	873	else
911	{	874	{
912	skill = find_player_hth_skill (op);	875	skill = find_player_hth_skill (op);
913		876
914	if (!skill)	877	if (!skill)
915	{
916	new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!");	878	new_draw_info (NDI_BLACK, 0, op, "You have no unarmed combat skills!");
917	return 0;
918	}
919	}	879	}
		880
		881	op->apply (skill);
920	}	882	}
921		883
922	/* now try to ready the new skill */	884	if (!pl->combat_ob)
923	if (!change_skill (op, skill, 0))	885	{
924	{ /* oh oh, trouble! */	886	LOG (llevError, "Could not find anything to attack on %s\n", &op->name);
925	new_draw_info_format (NDI_UNIQUE, 0, op, "Couldn't change to skill %s", &skill->name);
926	return 0;	887	return 0;
927	}	888	}
928	}	889	}
929		890
930	if (!pl->combat_ob)	891	if (!op->apply (pl->combat_ob))
931	{
932	LOG (llevError, "Could not find anything to attack on %s\n", &op->name);
933	return 0;	892	return 0;
934	}
935	}	893	}
936
937	if (!op->change_weapon (pl->combat_ob))
938	return 0;
939		894
940	/* lose invisiblity/hiding status for running attacks */	895	/* lose invisiblity/hiding status for running attacks */
941	if (pl->tmp_invis)	896	if (pl->tmp_invis)
942	{	897	{
943	pl->tmp_invis = 0;	898	pl->tmp_invis = 0;
944	op->invisible = 0;	899	op->invisible = 0;
945	op->hide = 0;	900	op->flag [FLAG_HIDDEN] = 0;
946	update_object (op, UP_OBJ_CHANGE);	901	update_object (op, UP_OBJ_CHANGE);
947	}	902	}
948	}	903	}
949		904
950	int success = attack_ob (tmp, op);	905	int success = attack_ob (tmp, op);
951		906
952	/* print appropriate messages to the player */	907	/* print appropriate messages to the player */
953		908
954	if (success && string && tmp && !QUERY_FLAG (tmp, FLAG_FREED))	909	if (success && string && tmp && !tmp->flag [FLAG_FREED])
955	{	910	{
956	if (op->type == PLAYER)	911	if (op->type == PLAYER)
957	new_draw_info_format (NDI_UNIQUE, 0, op, "You %s %s!", string, query_name (tmp));	912	new_draw_info_format (NDI_UNIQUE, 0, op, "You %s %s!", string, query_name (tmp));
958	else if (tmp->type == PLAYER)	913	else if (tmp->type == PLAYER)
959	new_draw_info_format (NDI_UNIQUE, 0, tmp, "%s %s you!", query_name (op), string);	914	new_draw_info_format (NDI_UNIQUE, 0, tmp, "%s %s you!", query_name (op), string);
…		…
962	return success;	917	return success;
963	}	918	}
964		919
965	/* skill_attack() - Core routine for use when we attack using a skills	920	/* skill_attack() - Core routine for use when we attack using a skills
966	* system. In essence, this code handles	921	* system. In essence, this code handles
967	* all skill-based attacks, ie hth, missile and melee weapons should be	922	* all skill-based attacks, i.e. hth, missile and melee weapons should be
968	* treated here. If an opponent is already supplied by move_player(),	923	* treated here. If an opponent is already supplied by move_player(),
969	* we move right onto do_skill_attack(), otherwise we find if an	924	* we move right onto do_skill_attack(), otherwise we find if an
970	* appropriate opponent exists.	925	* appropriate opponent exists.
971	*	926	*
972	* This is called by move_player() and attack_hth()	927	* This is called by move_player() and attack_hth()
…		…
1002	/* space must be blocked for there to be anything interesting to do */	957	/* space must be blocked for there to be anything interesting to do */
1003	if (!OB_TYPE_MOVE_BLOCK (pl, GET_MAP_MOVE_BLOCK (m, tx, ty)))	958	if (!OB_TYPE_MOVE_BLOCK (pl, GET_MAP_MOVE_BLOCK (m, tx, ty)))
1004	return 0;	959	return 0;
1005		960
1006	for (tmp = GET_MAP_OB (m, tx, ty); tmp; tmp = tmp->above)	961	for (tmp = GET_MAP_OB (m, tx, ty); tmp; tmp = tmp->above)
1007	if ((QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->stats.hp >= 0) \|\| QUERY_FLAG (tmp, FLAG_CAN_ROLL) \|\| tmp->type == LOCKED_DOOR)	962	if ((tmp->flag [FLAG_ALIVE] && tmp->stats.hp >= 0) \|\| tmp->flag [FLAG_CAN_ROLL] \|\| tmp->type == LOCKED_DOOR)
1008	{	963	{
1009	/* Don't attack party members */	964	/* Don't attack party members */
1010	if ((pl->type == PLAYER && tmp->type == PLAYER) && (pl->contr->party != NULL && pl->contr->party == tmp->contr->party))	965	if ((pl->type == PLAYER && tmp->type == PLAYER) && (pl->contr->party != NULL && pl->contr->party == tmp->contr->party))
1011	return 0;	966	return 0;
1012		967
…		…
1034	static int	989	static int
1035	attack_hth (object pl, int dir, const char string, object *skill)	990	attack_hth (object pl, int dir, const char string, object *skill)
1036	{	991	{
1037	object enemy = NULL, weapon;	992	object enemy = NULL, weapon;
1038		993
1039	if (QUERY_FLAG (pl, FLAG_READY_WEAPON))	994	if (pl->flag [FLAG_READY_WEAPON])
1040	for (weapon = pl->inv; weapon; weapon = weapon->below)	995	for (weapon = pl->inv; weapon; weapon = weapon->below)
1041	{	996	{
1042	if (weapon->type == WEAPON && QUERY_FLAG (weapon, FLAG_APPLIED))	997	if (weapon->type == WEAPON && weapon->flag [FLAG_APPLIED])
1043	{	998	{
1044	CLEAR_FLAG (weapon, FLAG_APPLIED);	999	weapon->clr_flag (FLAG_APPLIED);
1045	CLEAR_FLAG (pl, FLAG_READY_WEAPON);	1000	pl->clr_flag (FLAG_READY_WEAPON);
1046	pl->update_stats ();	1001	pl->update_stats ();
1047	if (pl->type == PLAYER)	1002	if (pl->type == PLAYER)
1048	{	1003	{
1049	new_draw_info (NDI_UNIQUE, 0, pl, "You unwield your weapon in order to attack.");	1004	new_draw_info (NDI_UNIQUE, 0, pl, "You unwield your weapon in order to attack.");
1050	esrv_update_item (UPD_FLAGS, pl, weapon);	1005	esrv_update_item (UPD_FLAGS, pl, weapon);
…		…
1068	*/	1023	*/
1069	static int	1024	static int
1070	attack_melee_weapon (object op, int dir, const char string, object *skill)	1025	attack_melee_weapon (object op, int dir, const char string, object *skill)
1071	{	1026	{
1072		1027
1073	if (!QUERY_FLAG (op, FLAG_READY_WEAPON))	1028	if (!op->flag [FLAG_READY_WEAPON])
1074	{	1029	{
1075	if (op->type == PLAYER)	1030	if (op->type == PLAYER)
1076	new_draw_info (NDI_UNIQUE, 0, op, "You have no ready weapon to attack with!");	1031	new_draw_info (NDI_UNIQUE, 0, op, "You have no ready weapon to attack with!");
1077		1032
1078	return 0;	1033	return 0;
1079	}	1034	}
1080		1035
1081	return skill_attack (NULL, op, dir, string, skill);	1036	return skill_attack (NULL, op, dir, string, skill);
1082
1083	}	1037	}
		1038

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Comparing deliantra/server/server/skill_util.C (file contents): Revision 1.48 by root, Mon May 14 19:56:45 2007 UTC vs. Revision 1.97 by root, Thu Apr 15 00:36:51 2010 UTC

Diff Legend

Comparing deliantra/server/server/skill_util.C (file contents):
Revision 1.48 by root, Mon May 14 19:56:45 2007 UTC vs.
Revision 1.97 by root, Thu Apr 15 00:36:51 2010 UTC