[ViewVC] Diff of: cvs/deliantra/server/common/utils.C

Comparing deliantra/server/common/utils.C (file contents):
Revision 1.3 by root, Sun Sep 3 00:18:40 2006 UTC vs.
Revision 1.65 by root, Thu Aug 16 06:36:56 2007 UTC

…		…
1	/*	1	/*
2	* static char *rcsid_utils_c =	2	* This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3	* "$Id: utils.C,v 1.3 2006/09/03 00:18:40 root Exp $";	3	*
4	*/	4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
5
6	/*
7	CrossFire, A Multiplayer game for X-windows
8
9	Copyright (C) 2002 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
11		7	*
12	This program is free software; you can redistribute it and/or modify	8	* Crossfire TRT is free software: you can redistribute it and/or modify
13	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
14	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
15	(at your option) any later version.	11	* (at your option) any later version.
16		12	*
17	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,
18	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20	GNU General Public License for more details.	16	* GNU General Public License for more details.
21		17	*
22	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
23	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
25		21	* The authors can be reached via e-mail to <crossfire@schmorp.de>
26	The authors can be reached via e-mail at crossfire-devel@real-time.com
27	*/	22	*/
28		23
29	/*	24	/*
30	* General convenience functions for crossfire.	25	* General convenience functions for crossfire.
31	*/	26	*/
		27
		28	#include <cstdlib>
		29	#include <sys/types.h>
		30	#include <unistd.h>
		31	#include <sys/time.h>
		32	#include <time.h>
		33	#include <signal.h>
32		34
33	#include <global.h>	35	#include <global.h>
34	#include <funcpoint.h>	36	#include <funcpoint.h>
35	#include <material.h>	37	#include <material.h>
		38
		39	#include <glib.h>
		40
		41	refcnt_base::refcnt_t refcnt_dummy;
		42
		43	rand_gen rndm;
		44
		45	void
		46	tausworthe_random_generator::seed (uint32_t seed)
		47	{
		48	state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U;
		49	state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U;
		50	state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U;
		51	state [3] = state [2] * 69069U; if (state [0] < 128) state [0] += 128U;
		52
		53	for (int i = 11; --i; )
		54	operator ()();
		55	}
		56
		57	uint32_t
		58	tausworthe_random_generator::next ()
		59	{
		60	state [0] = ((state [0] & 0xFFFFFFFEU) << 18U) ^ (((state [0] << 6U) ^ state [0]) >> 13U);
		61	state [1] = ((state [1] & 0xFFFFFFF8U) << 2U) ^ (((state [1] << 2U) ^ state [1]) >> 27U);
		62	state [2] = ((state [2] & 0xFFFFFFF0U) << 7U) ^ (((state [2] << 13U) ^ state [2]) >> 21U);
		63	state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U);
		64
		65	return state [0] ^ state [1] ^ state [2] ^ state [3];
		66	}
		67
		68	uint32_t
		69	tausworthe_random_generator::get_range (uint32_t num)
		70	{
		71	return (next () * (uint64_t)num) >> 32U;
		72	}
		73
		74	// return a number within (min .. max)
		75	int
		76	tausworthe_random_generator::get_range (int r_min, int r_max)
		77	{
		78	return r_min + get_range (max (r_max - r_min + 1, 0));
		79	}
36		80
37	/*	81	/*
38	* The random functions here take luck into account when rolling random	82	* The random functions here take luck into account when rolling random
39	* dice or numbers. This function has less of an impact the larger the	83	* dice or numbers. This function has less of an impact the larger the
40	* difference becomes in the random numbers. IE, the effect is lessened	84	* difference becomes in the random numbers. IE, the effect is lessened
47	* Roll a random number between min and max. Uses op to determine luck,	91	* Roll a random number between min and max. Uses op to determine luck,
48	* and if goodbad is non-zero, luck increases the roll, if zero, it decreases.	92	* and if goodbad is non-zero, luck increases the roll, if zero, it decreases.
49	* Generally, op should be the player/caster/hitter requesting the roll,	93	* Generally, op should be the player/caster/hitter requesting the roll,
50	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]	94	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]
51	*/	95	*/
52		96	int
53	int random_roll(int min, int max, const object *op, int goodbad) {	97	random_roll (int r_min, int r_max, const object *op, int goodbad)
54	int omin, diff, luck, base, ran;	98	{
		99	int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
55		100
56	omin = min;	101	if (r_max < r_min)
57	diff = max - min + 1;	102	{
58	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
59
60	if (max < 1 \|\| diff < 1) {
61	LOG(llevError, "Calling random_roll with min=%d max=%d\n", min, max);	103	LOG (llevError \| logBacktrace, "Calling random_roll with min=%d max=%d\n", r_min, r_max);
62	return(min); /* avoids a float exception */	104	return r_min;
63	}	105	}
64		106
65	ran = RANDOM();
66
67	if (op->type != PLAYER)	107	if (op->type == PLAYER)
68	return((ran%diff)+min);	108	{
69
70	luck = op->stats.luck;	109	int luck = op->stats.luck;
71	if (RANDOM()%base < MIN(10, abs(luck))) {
72	/* we have a winner */
73	((luck > 0) ? (luck = 1) : (luck = -1));
74	diff -= luck;
75	if (diff < 1)
76	return(omin); /check again/
77	((goodbad) ? (min += luck) : (diff));
78		110
79	return(MAX(omin, MIN(max, (ran%diff)+min)));	111	if (rndm (base) < min (10, abs (luck)))
		112	{
		113	//TODO: take luck into account
		114	}
80	}	115	}
81	return((ran%diff)+min);	116
		117	return rndm (r_min, r_max);
82	}	118	}
83		119
84	/*	120	/*
85	* This is a 64 bit version of random_roll above. This is needed	121	* This is a 64 bit version of random_roll above. This is needed
86	* for exp loss calculations for players changing religions.	122	* for exp loss calculations for players changing religions.
87	*/	123	*/
88		124	sint64
89	sint64 random_roll64(sint64 min, sint64 max, const object *op, int goodbad) {	125	random_roll64 (sint64 min, sint64 max, const object *op, int goodbad)
90	sint64 omin, diff, luck, ran;	126	{
91	int base;
92
93	omin = min;	127	sint64 omin = min;
94	diff = max - min + 1;	128	sint64 diff = max - min + 1;
95	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */	129	int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
96		130
97	if (max < 1 \|\| diff < 1) {	131	if (diff < 0)
98	#ifndef WIN32	132	{
99	LOG(llevError, "Calling random_roll with min=%lld max=%lld\n", min, max);
100	#else
101	LOG(llevError, "Calling random_roll with min=%I64d max=%I64d\n", min, max);	133	LOG (llevError \| logBacktrace, "Calling random_roll64 with min=%" PRId64 " max=%" PRId64 "\n", min, max);
102	#endif
103	return(min); /* avoids a float exception */	134	return (min); /* avoids a float exception */
104	}	135	}
105		136
106	/* Don't know of a portable call to get 64 bit random values.	137	/*
107	* So make a call to get two 32 bit random numbers, and just to	138	* Make a call to get two 32 bit unsigned random numbers, and just to
108	* a little byteshifting. Do make sure the first one is only	139	* a little bitshifting.
109	* 32 bit, so we don't get skewed results
110	*/	140	*/
111	ran = (RANDOM() & 0xffffffff) \| ((sint64)RANDOM() << 32);	141	sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
112		142
113	if (op->type != PLAYER)	143	if (op->type != PLAYER)
114	return((ran%diff)+min);	144	return ((ran % diff) + min);
115		145
116	luck = op->stats.luck;	146	int luck = op->stats.luck;
		147
117	if (RANDOM()%base < MIN(10, abs(luck))) {	148	if (rndm (base) < MIN (10, abs (luck)))
		149	{
118	/* we have a winner */	150	/* we have a winner */
119	((luck > 0) ? (luck = 1) : (luck = -1));	151	((luck > 0) ? (luck = 1) : (luck = -1));
120	diff -= luck;	152	diff -= luck;
121	if (diff < 1)	153	if (diff < 1)
122	return(omin); /check again/	154	return (omin); /check again /
		155
123	((goodbad) ? (min += luck) : (diff));	156	((goodbad) ? (min += luck) : (diff));
124		157
125	return(MAX(omin, MIN(max, (ran%diff)+min)));	158	return (MAX (omin, MIN (max, (ran % diff) + min)));
126	}	159	}
		160
127	return((ran%diff)+min);	161	return ran % diff + min;
128	}	162	}
129		163
130	/*	164	/*
131	* Roll a number of dice (2d3, 4d6). Uses op to determine luck,	165	* Roll a number of dice (2d3, 4d6). Uses op to determine luck,
132	* If goodbad is non-zero, luck increases the roll, if zero, it decreases.	166	* If goodbad is non-zero, luck increases the roll, if zero, it decreases.
133	* Generally, op should be the player/caster/hitter requesting the roll,	167	* Generally, op should be the player/caster/hitter requesting the roll,
134	* not the recipient (ie, the poor slob getting hit).	168	* not the recipient (ie, the poor slob getting hit).
135	* The args are num D size (ie 4d6) [garbled 20010916]	169	* The args are num D size (ie 4d6) [garbled 20010916]
136	*/	170	*/
137		171	int
138	int die_roll(int num, int size, const object *op, int goodbad) {	172	die_roll (int num, int size, const object *op, int goodbad)
		173	{
139	int min, diff, luck, total, i, gotlucky, base, ran;	174	int min, luck, total, i, gotlucky;
140		175
141	diff = size;	176	int diff = size;
142	min = 1;	177	min = 1;
143	luck = total = gotlucky = 0;	178	luck = total = gotlucky = 0;
144	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */	179	int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
		180
145	if (size < 2 \|\| diff < 1) {	181	if (size < 2 \|\| diff < 1)
		182	{
146	LOG(llevError, "Calling die_roll with num=%d size=%d\n", num, size);	183	LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size);
147	return(num); /* avoids a float exception */	184	return num; /* avoids a float exception */
148	}	185	}
149		186
150	if (op->type == PLAYER)	187	if (op->type == PLAYER)
151	luck = op->stats.luck;	188	luck = op->stats.luck;
152		189
153	for (i = 0; i < num; i++) {	190	for (i = 0; i < num; i++)
		191	{
154	if (RANDOM()%base < MIN(10, abs(luck)) && !gotlucky) {	192	if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
		193	{
155	/* we have a winner */	194	/* we have a winner */
156	gotlucky++;	195	gotlucky++;
157	((luck > 0) ? (luck = 1) : (luck = -1));	196	((luck > 0) ? (luck = 1) : (luck = -1));
158	diff -= luck;	197	diff -= luck;
159	if (diff < 1)	198	if (diff < 1)
160	return(num); /check again/	199	return (num); /check again /
161	((goodbad) ? (min += luck) : (diff));	200	((goodbad) ? (min += luck) : (diff));
162	ran = RANDOM();
163	total += MAX(1, MIN(size, (ran%diff)+min));	201	total += MAX (1, MIN (size, rndm (diff) + min));
		202	}
164	} else {	203	else
165	total += RANDOM()%size+1;	204	total += rndm (size) + 1;
166	}
167	}	205	}
		206
168	return(total);	207	return total;
169	}
170
171	/*
172	* Another convenience function. Returns a number between min and max.
173	* It is suggested one use these functions rather than RANDOM()%, as it
174	* would appear that a number of off-by-one-errors exist due to improper
175	* use of %. This should also prevent SIGFPE.
176	*/
177
178	int rndm(int min, int max)
179	{
180	int diff;
181
182	diff = max - min + 1;
183	if (max < 1 \|\| diff < 1)
184	return(min);
185
186	return(RANDOM()%diff+min);
187	}
188
189	/* decay and destroy persihable items in a map */
190
191	void decay_objects(mapstruct *m)
192	{
193	int x, y, destroy;
194	object op, otmp;
195
196	if (m->unique)
197	return;
198
199	for (x=0; x < MAP_WIDTH(m); x++)
200	for (y=0; y < MAP_HEIGHT(m); y++)
201	for (op = get_map_ob(m, x, y); op; op = otmp) {
202	destroy = 0;
203	otmp = op->above;
204	if (QUERY_FLAG(op,FLAG_IS_FLOOR) && QUERY_FLAG(op, FLAG_UNIQUE))
205	break;
206	if (QUERY_FLAG(op, FLAG_IS_FLOOR) \|\|
207	QUERY_FLAG(op, FLAG_OBJ_ORIGINAL) \|\|
208	QUERY_FLAG(op, FLAG_OBJ_SAVE_ON_OVL) \|\|
209	QUERY_FLAG(op, FLAG_UNIQUE) \|\|
210	QUERY_FLAG(op, FLAG_OVERLAY_FLOOR) \|\|
211	QUERY_FLAG(op, FLAG_UNPAID) \|\| IS_LIVE(op))
212	continue;
213	/* otherwise, we decay and destroy */
214	if (IS_WEAPON(op)) {
215	op->stats.dam--;
216	if (op->stats.dam < 0)
217	destroy = 1;
218	} else if (IS_ARMOR(op)) {
219	op->stats.ac--;
220	if (op->stats.ac < 0)
221	destroy = 1;
222	} else if (op->type == FOOD) {
223	op->stats.food -= rndm(5,20);
224	if (op->stats.food < 0)
225	destroy = 1;
226	} else {
227	if (op->material & M_PAPER \|\| op->material & M_LEATHER \|\|
228	op->material & M_WOOD \|\| op->material & M_ORGANIC \|\|
229	op->material & M_CLOTH \|\| op->material & M_LIQUID)
230	destroy = 1;
231	if (op->material & M_IRON && rndm(1,5) == 1)
232	destroy = 1;
233	if (op->material & M_GLASS && rndm(1,2) == 1)
234	destroy = 1;
235	if ((op->material & M_STONE \|\| op->material & M_ADAMANT) &&
236	rndm(1,10) == 1)
237	destroy = 1;
238	if ((op->material & M_SOFT_METAL \|\| op->material & M_BONE) &&
239	rndm(1,3) == 1)
240	destroy = 1;
241	if (op->material & M_ICE && MAP_TEMP(m) > 32)
242	destroy = 1;
243	}
244	/* adjust overall chance below */
245	if (destroy && rndm(0, 1)) {
246	remove_ob(op);
247	free_object(op);
248	}
249	}
250	}	208	}
251		209
252	/* convert materialname to materialtype_t */	210	/* convert materialname to materialtype_t */
253		211
254	materialtype_t name_to_material(const char name)	212	materialtype_t *
		213	name_to_material (const shstr &name)
255	{	214	{
256	materialtype_t mt, nmt;	215	for (materialtype_t *mt = materialt; mt && mt->next; mt = mt->next)
257		216	if (name == mt->name)
258	mt = NULL;
259	for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt=nmt->next) {
260	if (strcmp(name, nmt->name) == 0) {
261	mt = nmt;
262	break;
263	}
264	}
265	return mt;	217	return mt;
		218
		219	return 0;
266	}	220	}
267		221
268	/* when doing transmutation of objects, we have to recheck the resistances,	222	/* when doing transmutation of objects, we have to recheck the resistances,
269	* as some that did not apply previously, may apply now.	223	* as some that did not apply previously, may apply now.
270	*/	224	*/
271		225	void
272	void transmute_materialname(object op, const object change)	226	transmute_materialname (object op, const object change)
273	{	227	{
274	materialtype_t *mt;	228	materialtype_t *mt;
275	int j;	229	int j;
276		230
277	if (op->materialname == NULL)	231	if (op->materialname == NULL)
278	return;	232	return;
279		233
280	if (change->materialname != NULL &&	234	if (change->materialname != NULL && strcmp (op->materialname, change->materialname))
281	strcmp(op->materialname, change->materialname))
282	return;	235	return;
283		236
284	if (!IS_ARMOR(op))	237	if (!op->is_armor ())
285	return;	238	return;
286		239
287	mt = name_to_material(op->materialname);	240	mt = name_to_material (op->materialname);
288	if (!mt) {	241	if (!mt)
		242	{
289	LOG(llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->name, &op->name, &op->materialname);	243	LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->archname, &op->name, &op->materialname);
290	return;	244	return;
291	}	245	}
292		246
293	for (j=0; j < NROFATTACKS; j++)	247	for (j = 0; j < NROFATTACKS; j++)
294	if (op->resist[j] == 0 && change->resist[j] != 0) {	248	if (op->resist[j] == 0 && change->resist[j] != 0)
		249	{
295	op->resist[j] += mt->mod[j];	250	op->resist[j] += mt->mod[j];
296	if (op->resist[j] > 100)	251	if (op->resist[j] > 100)
297	op->resist[j] = 100;	252	op->resist[j] = 100;
298	if (op->resist[j] < -100)	253	if (op->resist[j] < -100)
299	op->resist[j] = -100;	254	op->resist[j] = -100;
300	}	255	}
301	}	256	}
302		257
303	/* set the materialname and type for an item */	258	/* set the materialname and type for an item */
		259	void
304	void set_materialname(object op, int difficulty, materialtype_t nmt)	260	set_materialname (object op, int difficulty, materialtype_t nmt)
305	{	261	{
306	materialtype_t mt, lmt;	262	materialtype_t mt, lmt;
307	int j;
308		263
309	if (op->materialname != NULL)	264	if (op->materialname != NULL)
310	return;	265	return;
311		266
312
313
314	if (nmt == NULL) {	267	if (nmt == NULL)
		268	{
315	lmt = NULL;	269	lmt = NULL;
316	#ifndef NEW_MATERIAL_CODE	270
317	for (mt = materialt; mt != NULL && mt->next != NULL; mt=mt->next) {	271	for (mt = materialt; mt && mt->next; mt = mt->next)
318	if (op->material & mt->material) {
319	lmt = mt;
320	break;
321	}
322	}
323
324	#else
325	for (mt = materialt; mt != NULL && mt->next != NULL; mt=mt->next) {
326	if (op->material & mt->material && rndm(1, 100) <= mt->chance &&	272	if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
327	difficulty >= mt->difficulty &&
328	(op->magic >= mt->magic \|\| mt->magic == 0)) {	273	difficulty >= mt->difficulty && (op->magic >= mt->magic \|\| mt->magic == 0))
		274	{
329	lmt = mt;	275	lmt = mt;
330	if (!(IS_WEAPON(op) \|\| IS_ARMOR(op)))	276	if (!(op->is_weapon () \|\| op->is_armor ()))
331	break;	277	break;
332	}	278	}
333	}	279	}
334	#endif	280	else
335	} else {
336	lmt = nmt;	281	lmt = nmt;
337	}
338		282
339	if (lmt != NULL) {	283	if (lmt != NULL)
340	#ifndef NEW_MATERIAL_CODE	284	{
341	op->materialname = lmt->name;	285	if (op->stats.dam && op->is_weapon ())
342	return;	286	{
343	#else
344
345	if (op->stats.dam && IS_WEAPON(op)) {
346	op->stats.dam += lmt->damage;	287	op->stats.dam += lmt->damage;
347	if (op->stats.dam < 1)	288	if (op->stats.dam < 1)
348	op->stats.dam = 1;	289	op->stats.dam = 1;
349	}	290	}
		291
350	if (op->stats.sp && op->type == BOW)	292	if (op->stats.sp && op->type == BOW)
351	op->stats.sp += lmt->sp;	293	op->stats.sp += lmt->sp;
352	if (op->stats.wc && IS_WEAPON(op))	294	if (op->stats.wc && op->is_weapon ())
353	op->stats.wc += lmt->wc;	295	op->stats.wc += lmt->wc;
354	if (IS_ARMOR(op)) {	296	if (op->is_armor ())
		297	{
355	if (op->stats.ac)	298	if (op->stats.ac)
356	op->stats.ac += lmt->ac;	299	op->stats.ac += lmt->ac;
		300
357	for (j=0; j < NROFATTACKS; j++)	301	for (int j = 0; j < NROFATTACKS; j++)
358	if (op->resist[j] != 0) {	302	if (op->resist[j] != 0)
		303	{
359	op->resist[j] += lmt->mod[j];	304	op->resist[j] += lmt->mod[j];
360	if (op->resist[j] > 100)	305	if (op->resist[j] > 100)
361	op->resist[j] = 100;	306	op->resist[j] = 100;
362	if (op->resist[j] < -100)	307	if (op->resist[j] < -100)
363	op->resist[j] = -100;	308	op->resist[j] = -100;
364	}	309	}
365	}	310	}
		311
366	op->materialname = add_string(lmt->name);	312	op->materialname = lmt->name;
367	/* dont make it unstackable if it doesn't need to be */	313	/* dont make it unstackable if it doesn't need to be */
368	if (IS_WEAPON(op) \|\| IS_ARMOR(op)) {	314	if (op->is_weapon () \|\| op->is_armor ())
		315	{
369	op->weight = (op->weight * lmt->weight)/100;	316	op->weight = (op->weight * lmt->weight) / 100;
370	op->value = (op->value * lmt->value)/100;	317	op->value = (op->value * lmt->value) / 100;
371	}	318	}
372	#endif
373	}	319	}
374	}	320	}
375		321
376	/*	322	/*
377	* Strip out the media tags from a String.	323	* Strip out the media tags from a String.
378	* Warning the input string will contain the result string	324	* Warning the input string will contain the result string
379	*/	325	*/
		326	void
380	void strip_media_tag(char *message){	327	strip_media_tag (char *message)
		328	{
381	int in_tag=0;	329	int in_tag = 0;
382	char* dest;	330	char *dest;
383	char* src;	331	char *src;
		332
384	src=dest=message;	333	src = dest = message;
385	while (*src!='\0'){	334	while (*src != '\0')
		335	{
386	if (*src=='['){	336	if (*src == '[')
		337	{
387	in_tag=1;	338	in_tag = 1;
		339	}
388	} else if (in_tag && (*src==']'))	340	else if (in_tag && (*src == ']'))
389	in_tag=0;	341	in_tag = 0;
390	else if (!in_tag){	342	else if (!in_tag)
		343	{
391	dest=src;	344	dest = src;
392	dest++;	345	dest++;
393	}	346	}
394	src++;	347	src++;
395	}	348	}
396	*dest='\0';	349	*dest = '\0';
397	}	350	}
398		351
		352	const char *
399	const char* strrstr(const char* haystack, const char* needle){	353	strrstr (const char haystack, const char needle)
		354	{
400	const char* lastneedle;	355	const char *lastneedle;
		356
401	lastneedle=NULL;	357	lastneedle = NULL;
402	while((haystack=strstr(haystack,needle))!=NULL){	358	while ((haystack = strstr (haystack, needle)) != NULL)
		359	{
403	lastneedle=haystack;	360	lastneedle = haystack;
404	haystack++;	361	haystack++;
405	}	362	}
406	return lastneedle;	363	return lastneedle;
407		364
408	}	365	}
		366
409	#define EOL_SIZE (sizeof("\n")-1)	367	#define EOL_SIZE (sizeof("\n")-1)
		368	void
410	void strip_endline(char* buf){	369	strip_endline (char *buf)
		370	{
411	if (strlen(buf)<sizeof("\n")){	371	if (strlen (buf) < sizeof ("\n"))
		372	{
412	return;	373	return;
413	}	374	}
414	if (!strcmp(buf+strlen(buf)-EOL_SIZE,"\n"))	375	if (!strcmp (buf + strlen (buf) - EOL_SIZE, "\n"))
415	buf[strlen(buf)-EOL_SIZE]='\0';	376	buf[strlen (buf) - EOL_SIZE] = '\0';
416	}	377	}
417		378
418	/**	379	/**
419	* Replace in string src all occurrences of key by replacement. The resulting	380	* Replace in string src all occurrences of key by replacement. The resulting
420	* string is put into result; at most resultsize characters (including the	381	* string is put into result; at most resultsize characters (including the
421	* terminating null character) will be written to result.	382	* terminating null character) will be written to result.
422	*/	383	*/
		384	void
423	void replace(const char src, const char key, const char replacement, char result, size_t resultsize)	385	replace (const char src, const char key, const char replacement, char result, size_t resultsize)
424	{	386	{
425	size_t resultlen;	387	size_t resultlen;
426	size_t keylen;	388	size_t keylen;
427		389
428	/* special case to prevent infinite loop if key==replacement=="" */	390	/* special case to prevent infinite loop if key==replacement=="" */
429	if(strcmp(key, replacement) == 0)	391	if (strcmp (key, replacement) == 0)
430	{	392	{
431	snprintf(result, resultsize, "%s", src);	393	snprintf (result, resultsize, "%s", src);
432	return;	394	return;
433	}	395	}
434		396
435	keylen = strlen(key);	397	keylen = strlen (key);
436		398
437	resultlen = 0;	399	resultlen = 0;
438	while(*src != '\0' && resultlen+1 < resultsize)	400	while (*src != '\0' && resultlen + 1 < resultsize)
439	{	401	{
440	if(strncmp(src, key, keylen) == 0)	402	if (strncmp (src, key, keylen) == 0)
441	{	403	{
442	snprintf(result+resultlen, resultsize-resultlen, "%s", replacement);	404	snprintf (result + resultlen, resultsize - resultlen, "%s", replacement);
443	resultlen += strlen(result+resultlen);	405	resultlen += strlen (result + resultlen);
444	src += keylen;	406	src += keylen;
445	}	407	}
446	else	408	else
447	{
448	result[resultlen++] = *src++;
449	}
450	}	409	{
		410	result[resultlen++] = *src++;
		411	}
		412	}
451	result[resultlen] = '\0';	413	result[resultlen] = '\0';
452	}	414	}
453		415
454	/**	416	/**
455	* Taking a string as an argument, mutate it into a string that looks like a list.	417	* Taking a string as an argument, mutate it into a string that looks like a list.
456	* a 'list' for the purposes here, is a string of items, seperated by commas, except	418	* a 'list' for the purposes here, is a string of items, seperated by commas, except
457	* for the last entry, which has an 'and' before it, and a full stop (period) after it.	419	* for the last entry, which has an 'and' before it, and a full stop (period) after it.
458	* This function will also strip all trailing non alphanumeric characters.	420	* This function will also strip all trailing non alphanumeric characters.
459	* It does not insert an oxford comma.	421	* It does not insert an oxford comma.
460	*/	422	*/
461		423	void
462	void make_list_like(char *input) {	424	make_list_like (char *input)
		425	{
463	char *p, tmp[MAX_BUF];	426	char *p, tmp[MAX_BUF];
464	int i;	427	int i;
		428
465	if (!input \|\| strlen(input) > MAX_BUF-5) return;	429	if (!input \|\| strlen (input) > MAX_BUF - 5)
466	/* bad stuff would happen if we continued here, the -5 is to make space for ' and ' */
467
468	strncpy(tmp, input, MAX_BUF-5);
469	/trim all trailing commas, spaces etc./
470	for (i=strlen(tmp); !isalnum(tmp[i]) && i >= 0; i--)
471	tmp[i]='\0';
472	strcat(tmp, ".");
473
474	p=strrchr(tmp, ',');
475	if (p) {
476	*p='\0';
477	strcpy(input, tmp);
478	p++;
479	strcat(input, " and");
480	strcat(input, p);
481	}
482	else strcpy(input, tmp);
483	return;	430	return;
484	}	431	/* bad stuff would happen if we continued here, the -5 is to make space for ' and ' */
485		432
		433	strncpy (tmp, input, MAX_BUF - 5);
		434	/trim all trailing commas, spaces etc. /
		435	for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--)
		436	tmp[i] = '\0';
		437
		438	strcat (tmp, ".");
		439
		440	p = strrchr (tmp, ',');
		441	if (p)
		442	{
		443	*p = '\0';
		444	strcpy (input, tmp);
		445	p++;
		446	strcat (input, " and");
		447	strcat (input, p);
		448	}
		449	else
		450	strcpy (input, tmp);
		451
		452	return;
		453	}
		454
		455	/////////////////////////////////////////////////////////////////////////////
		456
486	void *	457	void
487	zero_initialised::operator new (size_t s)	458	fork_abort (const char *msg)
488	{	459	{
		460	if (!fork ())
		461	{
		462	signal (SIGABRT, SIG_DFL);
		463	// try to put corefiles into a subdirectory, if existing, to allow
		464	// an administrator to reduce the I/O load.
		465	chdir ("cores");
		466	abort ();
		467	}
		468
		469	LOG (llevError, "fork abort: %s\n", msg);
		470	}
		471
		472	void *salloc_ (int n) throw (std::bad_alloc)
		473	{
		474	#ifdef PREFER_MALLOC
489	void *p = malloc (s);	475	void *ptr = malloc (n);
490		476	#else
491	memset (p, 0, s);	477	void *ptr = g_slice_alloc (n);
		478	#endif
		479
		480	if (!ptr)
		481	throw std::bad_alloc ();
		482
492	return p;	483	return ptr;
493	}	484	}
494		485
495	void	486	void salloc_ (int n, void src) throw (std::bad_alloc)
496	zero_initialised::operator delete (void *p, size_t s)
497	{	487	{
498	free (p);	488	void *ptr = salloc_ (n);
499	}
500		489
		490	if (src)
		491	memcpy (ptr, src, n);
		492	else
		493	memset (ptr, 0, n);
		494
		495	return ptr;
		496	}
		497
		498	void assign (char dst, const char src, int maxlen)
		499	{
		500	if (!src)
		501	src = "";
		502
		503	int len = strlen (src);
		504
		505	if (len >= maxlen - 1)
		506	{
		507	if (maxlen <= 4)
		508	{
		509	memset (dst, '.', maxlen - 1);
		510	dst [maxlen - 1] = 0;
		511	}
		512	else
		513	{
		514	memcpy (dst, src, maxlen - 4);
		515	memcpy (dst + maxlen - 4, "...", 4);
		516	}
		517	}
		518	else
		519	memcpy (dst, src, len + 1);
		520	}
		521
		522	const char *
		523	format (const char *format, ...)
		524	{
		525	static dynbuf_text buf;
		526
		527	buf.clear ();
		528
		529	va_list ap;
		530	va_start (ap, format);
		531	buf.vprintf (format, ap);
		532	va_end (ap);
		533
		534	return buf;
		535	}
		536
		537	tstamp now ()
		538	{
		539	struct timeval tv;
		540
		541	gettimeofday (&tv, 0);
		542	return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6);
		543	}
		544
		545	int
		546	similar_direction (int a, int b)
		547	{
		548	if (!a \|\| !b)
		549	return 0;
		550
		551	int diff = (b - a) & 7;
		552	return diff <= 1 \|\| diff >= 7;
		553	}
		554
		555	/* crc32 0xdebb20e3 table and supplementary functions. */
		556	extern const uint32_t crc_32_tab[256] =
		557	{
		558	0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
		559	0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
		560	0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
		561	0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
		562	0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
		563	0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
		564	0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
		565	0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
		566	0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
		567	0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
		568	0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
		569	0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
		570	0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
		571	0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
		572	0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
		573	0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
		574	0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
		575	0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
		576	0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
		577	0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
		578	0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
		579	0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
		580	0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
		581	0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
		582	0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
		583	0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
		584	0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
		585	0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
		586	0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
		587	0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
		588	0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
		589	0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
		590	0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
		591	0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
		592	0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
		593	0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
		594	0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
		595	0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
		596	0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
		597	0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
		598	0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
		599	0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
		600	0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
		601	0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
		602	0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
		603	0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
		604	0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
		605	0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
		606	0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
		607	0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
		608	0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
		609	0x2d02ef8dL
		610	};
		611
		612	#if 0
		613	void xyzzy (object_ptr &a, object_ptr &o)
		614	{
		615	asm volatile ("int3");
		616	a = o;
		617	asm volatile ("int3");
		618	}
		619	#endif
		620

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Comparing deliantra/server/common/utils.C (file contents): Revision 1.3 by root, Sun Sep 3 00:18:40 2006 UTC vs. Revision 1.65 by root, Thu Aug 16 06:36:56 2007 UTC

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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.3 by root, Sun Sep 3 00:18:40 2006 UTC vs.
Revision 1.65 by root, Thu Aug 16 06:36:56 2007 UTC