[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 1.59 by root, Thu Jun 7 19:12:22 2007 UTC

…		…
1	/*	1	/*
2	* static char *rcsid_utils_c =	2	* This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game.
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 it
13	it under the terms of the GNU General Public License as published by	9	* under the terms of the GNU General Public License as published by the Free
14	the Free Software Foundation; either version 2 of the License, or	10	* Software Foundation; either version 2 of the License, or (at your option)
15	(at your option) any later version.	11	* 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, but
18	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20	GNU General Public License for more details.	16	* 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 along
23	along with this program; if not, write to the Free Software	19	* with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25		21	*
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	22	* The authors can be reached via e-mail to <crossfire@schmorp.de>
27	*/	23	*/
28		24
29	/*	25	/*
30	* General convenience functions for crossfire.	26	* General convenience functions for crossfire.
31	*/	27	*/
		28
		29	#include <cstdlib>
		30	#include <sys/types.h>
		31	#include <unistd.h>
		32	#include <sys/time.h>
		33	#include <time.h>
		34	#include <signal.h>
32		35
33	#include <global.h>	36	#include <global.h>
34	#include <funcpoint.h>	37	#include <funcpoint.h>
35	#include <material.h>	38	#include <material.h>
		39
		40	#include <glib.h>
		41
		42	rand_gen rndm;
		43
		44	void
		45	tausworthe_random_generator::seed (uint32_t seed)
		46	{
		47	state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U;
		48	state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U;
		49	state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U;
		50	state [3] = state [2] * 69069U; if (state [0] < 128) state [0] += 128U;
		51
		52	for (int i = 11; --i; )
		53	operator ()();
		54	}
		55
		56	uint32_t
		57	tausworthe_random_generator::next ()
		58	{
		59	state [0] = ((state [0] & 0xFFFFFFFEU) << 18U) ^ (((state [0] << 6U) ^ state [0]) >> 13U);
		60	state [1] = ((state [1] & 0xFFFFFFF8U) << 2U) ^ (((state [1] << 2U) ^ state [1]) >> 27U);
		61	state [2] = ((state [2] & 0xFFFFFFF0U) << 7U) ^ (((state [2] << 13U) ^ state [2]) >> 21U);
		62	state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U);
		63
		64	return state [0] ^ state [1] ^ state [2] ^ state [3];
		65	}
		66
		67	uint32_t
		68	tausworthe_random_generator::get_range (uint32_t num)
		69	{
		70	return (next () * (uint64_t)num) >> 32U;
		71	}
		72
		73	// return a number within (min .. max)
		74	int
		75	tausworthe_random_generator::get_range (int r_min, int r_max)
		76	{
		77	return r_min + get_range (max (r_max - r_min + 1, 0));
		78	}
36		79
37	/*	80	/*
38	* The random functions here take luck into account when rolling random	81	* 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	82	* 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	83	* 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,	90	* 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.	91	* 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,	92	* Generally, op should be the player/caster/hitter requesting the roll,
50	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]	93	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]
51	*/	94	*/
52		95	int
53	int random_roll(int min, int max, const object *op, int goodbad) {	96	random_roll (int r_min, int r_max, const object *op, int goodbad)
54	int omin, diff, luck, base, ran;	97	{
		98	int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
55		99
56	omin = min;	100	if (r_max < r_min)
57	diff = max - min + 1;	101	{
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);	102	LOG (llevError \| logBacktrace, "Calling random_roll with min=%d max=%d\n", r_min, r_max);
62	return(min); /* avoids a float exception */	103	return r_min;
63	}	104	}
64		105
65	ran = RANDOM();
66
67	if (op->type != PLAYER)	106	if (op->type == PLAYER)
68	return((ran%diff)+min);	107	{
69
70	luck = op->stats.luck;	108	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		109
79	return(MAX(omin, MIN(max, (ran%diff)+min)));	110	if (rndm (base) < min (10, abs (luck)))
		111	{
		112	//TODO: take luck into account
		113	}
80	}	114	}
81	return((ran%diff)+min);	115
		116	return rndm (r_min, r_max);
82	}	117	}
83		118
84	/*	119	/*
85	* This is a 64 bit version of random_roll above. This is needed	120	* This is a 64 bit version of random_roll above. This is needed
86	* for exp loss calculations for players changing religions.	121	* for exp loss calculations for players changing religions.
87	*/	122	*/
88		123	sint64
89	sint64 random_roll64(sint64 min, sint64 max, const object *op, int goodbad) {	124	random_roll64 (sint64 min, sint64 max, const object *op, int goodbad)
90	sint64 omin, diff, luck, ran;	125	{
91	int base;
92
93	omin = min;	126	sint64 omin = min;
94	diff = max - min + 1;	127	sint64 diff = max - min + 1;
95	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */	128	int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
96		129
97	if (max < 1 \|\| diff < 1) {	130	if (diff < 0)
98	#ifndef WIN32	131	{
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);	132	LOG (llevError \| logBacktrace, "Calling random_roll64 with min=%" PRId64 " max=%" PRId64 "\n", min, max);
102	#endif
103	return(min); /* avoids a float exception */	133	return (min); /* avoids a float exception */
104	}	134	}
105		135
106	/* Don't know of a portable call to get 64 bit random values.	136	/*
107	* So make a call to get two 32 bit random numbers, and just to	137	* 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	138	* a little bitshifting.
109	* 32 bit, so we don't get skewed results
110	*/	139	*/
111	ran = (RANDOM() & 0xffffffff) \| ((sint64)RANDOM() << 32);	140	sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
112		141
113	if (op->type != PLAYER)	142	if (op->type != PLAYER)
114	return((ran%diff)+min);	143	return ((ran % diff) + min);
115		144
116	luck = op->stats.luck;	145	int luck = op->stats.luck;
		146
117	if (RANDOM()%base < MIN(10, abs(luck))) {	147	if (rndm (base) < MIN (10, abs (luck)))
		148	{
118	/* we have a winner */	149	/* we have a winner */
119	((luck > 0) ? (luck = 1) : (luck = -1));	150	((luck > 0) ? (luck = 1) : (luck = -1));
120	diff -= luck;	151	diff -= luck;
121	if (diff < 1)	152	if (diff < 1)
122	return(omin); /check again/	153	return (omin); /check again /
		154
123	((goodbad) ? (min += luck) : (diff));	155	((goodbad) ? (min += luck) : (diff));
124		156
125	return(MAX(omin, MIN(max, (ran%diff)+min)));	157	return (MAX (omin, MIN (max, (ran % diff) + min)));
126	}	158	}
		159
127	return((ran%diff)+min);	160	return ran % diff + min;
128	}	161	}
129		162
130	/*	163	/*
131	* Roll a number of dice (2d3, 4d6). Uses op to determine luck,	164	* 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.	165	* 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,	166	* Generally, op should be the player/caster/hitter requesting the roll,
134	* not the recipient (ie, the poor slob getting hit).	167	* not the recipient (ie, the poor slob getting hit).
135	* The args are num D size (ie 4d6) [garbled 20010916]	168	* The args are num D size (ie 4d6) [garbled 20010916]
136	*/	169	*/
137		170	int
138	int die_roll(int num, int size, const object *op, int goodbad) {	171	die_roll (int num, int size, const object *op, int goodbad)
		172	{
139	int min, diff, luck, total, i, gotlucky, base, ran;	173	int min, luck, total, i, gotlucky;
140		174
141	diff = size;	175	int diff = size;
142	min = 1;	176	min = 1;
143	luck = total = gotlucky = 0;	177	luck = total = gotlucky = 0;
144	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */	178	int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
		179
145	if (size < 2 \|\| diff < 1) {	180	if (size < 2 \|\| diff < 1)
		181	{
146	LOG(llevError, "Calling die_roll with num=%d size=%d\n", num, size);	182	LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size);
147	return(num); /* avoids a float exception */	183	return num; /* avoids a float exception */
148	}	184	}
149		185
150	if (op->type == PLAYER)	186	if (op->type == PLAYER)
151	luck = op->stats.luck;	187	luck = op->stats.luck;
152		188
153	for (i = 0; i < num; i++) {	189	for (i = 0; i < num; i++)
		190	{
154	if (RANDOM()%base < MIN(10, abs(luck)) && !gotlucky) {	191	if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
		192	{
155	/* we have a winner */	193	/* we have a winner */
156	gotlucky++;	194	gotlucky++;
157	((luck > 0) ? (luck = 1) : (luck = -1));	195	((luck > 0) ? (luck = 1) : (luck = -1));
158	diff -= luck;	196	diff -= luck;
159	if (diff < 1)	197	if (diff < 1)
160	return(num); /check again/	198	return (num); /check again /
161	((goodbad) ? (min += luck) : (diff));	199	((goodbad) ? (min += luck) : (diff));
162	ran = RANDOM();
163	total += MAX(1, MIN(size, (ran%diff)+min));	200	total += MAX (1, MIN (size, rndm (diff) + min));
		201	}
164	} else {	202	else
165	total += RANDOM()%size+1;	203	total += rndm (size) + 1;
166	}
167	}	204	}
		205
168	return(total);	206	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	}	207	}
251		208
252	/* convert materialname to materialtype_t */	209	/* convert materialname to materialtype_t */
253		210
254	materialtype_t name_to_material(const char name)	211	materialtype_t *
		212	name_to_material (const shstr &name)
255	{	213	{
256	materialtype_t mt, nmt;	214	for (materialtype_t *mt = materialt; mt && mt->next; mt = mt->next)
257		215	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;	216	return mt;
		217
		218	return materialt;
266	}	219	}
267		220
268	/* when doing transmutation of objects, we have to recheck the resistances,	221	/* when doing transmutation of objects, we have to recheck the resistances,
269	* as some that did not apply previously, may apply now.	222	* as some that did not apply previously, may apply now.
270	*/	223	*/
271		224
		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;
		263
		264	#ifdef NEW_MATERIAL_CODE
307	int j;	265	int j;
		266	#endif
308		267
309	if (op->materialname != NULL)	268	if (op->materialname != NULL)
310	return;	269	return;
311		270
312		271
313		272
314	if (nmt == NULL) {	273	if (nmt == NULL)
		274	{
315	lmt = NULL;	275	lmt = NULL;
316	#ifndef NEW_MATERIAL_CODE	276	#ifndef NEW_MATERIAL_CODE
317	for (mt = materialt; mt != NULL && mt->next != NULL; mt=mt->next) {	277	for (mt = materialt; mt && mt->next; mt = mt->next)
		278	{
318	if (op->material & mt->material) {	279	if (op->materials & mt->material)
		280	{
319	lmt = mt;	281	lmt = mt;
		282	break;
		283	}
		284	}
		285
		286	#else
		287	for (mt = materialt; mt && mt->next; mt = mt->next)
		288	{
		289	if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
		290	difficulty >= mt->difficulty && (op->magic >= mt->magic \|\| mt->magic == 0))
		291	{
		292	lmt = mt;
		293	if (!(op->is_weapon () \|\| op->is_armor ()))
320	break;	294	break;
321	}	295	}
322	}	296	}
		297	#endif
		298	}
		299	else
		300	{
		301	lmt = nmt;
		302	}
323		303
		304	if (lmt != NULL)
		305	{
		306	#ifndef NEW_MATERIAL_CODE
		307	op->materialname = lmt->name;
		308	return;
324	#else	309	#else
325	for (mt = materialt; mt != NULL && mt->next != NULL; mt=mt->next) {	310
326	if (op->material & mt->material && rndm(1, 100) <= mt->chance &&	311	if (op->stats.dam && op->is_weapon ())
327	difficulty >= mt->difficulty &&
328	(op->magic >= mt->magic \|\| mt->magic == 0)) {
329	lmt = mt;
330	if (!(IS_WEAPON(op) \|\| IS_ARMOR(op)))
331	break;
332	}
333	}	312	{
334	#endif
335	} else {
336	lmt = nmt;
337	}
338
339	if (lmt != NULL) {
340	#ifndef NEW_MATERIAL_CODE
341	op->materialname = lmt->name;
342	return;
343	#else
344
345	if (op->stats.dam && IS_WEAPON(op)) {
346	op->stats.dam += lmt->damage;	313	op->stats.dam += lmt->damage;
347	if (op->stats.dam < 1)	314	if (op->stats.dam < 1)
348	op->stats.dam = 1;	315	op->stats.dam = 1;
349	}	316	}
		317
350	if (op->stats.sp && op->type == BOW)	318	if (op->stats.sp && op->type == BOW)
351	op->stats.sp += lmt->sp;	319	op->stats.sp += lmt->sp;
352	if (op->stats.wc && IS_WEAPON(op))	320	if (op->stats.wc && op->is_weapon ())
353	op->stats.wc += lmt->wc;	321	op->stats.wc += lmt->wc;
354	if (IS_ARMOR(op)) {	322	if (op->is_armor ())
		323	{
355	if (op->stats.ac)	324	if (op->stats.ac)
356	op->stats.ac += lmt->ac;	325	op->stats.ac += lmt->ac;
357	for (j=0; j < NROFATTACKS; j++)	326	for (j = 0; j < NROFATTACKS; j++)
358	if (op->resist[j] != 0) {	327	if (op->resist[j] != 0)
		328	{
359	op->resist[j] += lmt->mod[j];	329	op->resist[j] += lmt->mod[j];
360	if (op->resist[j] > 100)	330	if (op->resist[j] > 100)
361	op->resist[j] = 100;	331	op->resist[j] = 100;
362	if (op->resist[j] < -100)	332	if (op->resist[j] < -100)
363	op->resist[j] = -100;	333	op->resist[j] = -100;
364	}	334	}
365	}	335	}
366	op->materialname = add_string(lmt->name);	336	op->materialname = lmt->name;
367	/* dont make it unstackable if it doesn't need to be */	337	/* dont make it unstackable if it doesn't need to be */
368	if (IS_WEAPON(op) \|\| IS_ARMOR(op)) {	338	if (op->is_weapon () \|\| op->is_armor ())
		339	{
369	op->weight = (op->weight * lmt->weight)/100;	340	op->weight = (op->weight * lmt->weight) / 100;
370	op->value = (op->value * lmt->value)/100;	341	op->value = (op->value * lmt->value) / 100;
371	}	342	}
372	#endif	343	#endif
373	}	344	}
374	}	345	}
375		346
376	/*	347	/*
377	* Strip out the media tags from a String.	348	* Strip out the media tags from a String.
378	* Warning the input string will contain the result string	349	* Warning the input string will contain the result string
379	*/	350	*/
		351	void
380	void strip_media_tag(char *message){	352	strip_media_tag (char *message)
		353	{
381	int in_tag=0;	354	int in_tag = 0;
382	char* dest;	355	char *dest;
383	char* src;	356	char *src;
		357
384	src=dest=message;	358	src = dest = message;
385	while (*src!='\0'){	359	while (*src != '\0')
		360	{
386	if (*src=='['){	361	if (*src == '[')
		362	{
387	in_tag=1;	363	in_tag = 1;
		364	}
388	} else if (in_tag && (*src==']'))	365	else if (in_tag && (*src == ']'))
389	in_tag=0;	366	in_tag = 0;
390	else if (!in_tag){	367	else if (!in_tag)
		368	{
391	dest=src;	369	dest = src;
392	dest++;	370	dest++;
393	}	371	}
394	src++;	372	src++;
395	}	373	}
396	*dest='\0';	374	*dest = '\0';
397	}	375	}
398		376
		377	const char *
399	const char* strrstr(const char* haystack, const char* needle){	378	strrstr (const char haystack, const char needle)
		379	{
400	const char* lastneedle;	380	const char *lastneedle;
		381
401	lastneedle=NULL;	382	lastneedle = NULL;
402	while((haystack=strstr(haystack,needle))!=NULL){	383	while ((haystack = strstr (haystack, needle)) != NULL)
		384	{
403	lastneedle=haystack;	385	lastneedle = haystack;
404	haystack++;	386	haystack++;
405	}	387	}
406	return lastneedle;	388	return lastneedle;
407		389
408	}	390	}
		391
409	#define EOL_SIZE (sizeof("\n")-1)	392	#define EOL_SIZE (sizeof("\n")-1)
		393	void
410	void strip_endline(char* buf){	394	strip_endline (char *buf)
		395	{
411	if (strlen(buf)<sizeof("\n")){	396	if (strlen (buf) < sizeof ("\n"))
		397	{
412	return;	398	return;
413	}	399	}
414	if (!strcmp(buf+strlen(buf)-EOL_SIZE,"\n"))	400	if (!strcmp (buf + strlen (buf) - EOL_SIZE, "\n"))
415	buf[strlen(buf)-EOL_SIZE]='\0';	401	buf[strlen (buf) - EOL_SIZE] = '\0';
416	}	402	}
417		403
418	/**	404	/**
419	* Replace in string src all occurrences of key by replacement. The resulting	405	* Replace in string src all occurrences of key by replacement. The resulting
420	* string is put into result; at most resultsize characters (including the	406	* string is put into result; at most resultsize characters (including the
421	* terminating null character) will be written to result.	407	* terminating null character) will be written to result.
422	*/	408	*/
		409	void
423	void replace(const char src, const char key, const char replacement, char result, size_t resultsize)	410	replace (const char src, const char key, const char replacement, char result, size_t resultsize)
424	{	411	{
425	size_t resultlen;	412	size_t resultlen;
426	size_t keylen;	413	size_t keylen;
427		414
428	/* special case to prevent infinite loop if key==replacement=="" */	415	/* special case to prevent infinite loop if key==replacement=="" */
429	if(strcmp(key, replacement) == 0)	416	if (strcmp (key, replacement) == 0)
430	{	417	{
431	snprintf(result, resultsize, "%s", src);	418	snprintf (result, resultsize, "%s", src);
432	return;	419	return;
433	}	420	}
434		421
435	keylen = strlen(key);	422	keylen = strlen (key);
436		423
437	resultlen = 0;	424	resultlen = 0;
438	while(*src != '\0' && resultlen+1 < resultsize)	425	while (*src != '\0' && resultlen + 1 < resultsize)
439	{	426	{
440	if(strncmp(src, key, keylen) == 0)	427	if (strncmp (src, key, keylen) == 0)
441	{	428	{
442	snprintf(result+resultlen, resultsize-resultlen, "%s", replacement);	429	snprintf (result + resultlen, resultsize - resultlen, "%s", replacement);
443	resultlen += strlen(result+resultlen);	430	resultlen += strlen (result + resultlen);
444	src += keylen;	431	src += keylen;
445	}	432	}
446	else	433	else
447	{
448	result[resultlen++] = *src++;
449	}
450	}	434	{
		435	result[resultlen++] = *src++;
		436	}
		437	}
451	result[resultlen] = '\0';	438	result[resultlen] = '\0';
452	}	439	}
453		440
454	/**	441	/**
455	* Taking a string as an argument, mutate it into a string that looks like a list.	442	* 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	443	* 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.	444	* 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.	445	* This function will also strip all trailing non alphanumeric characters.
459	* It does not insert an oxford comma.	446	* It does not insert an oxford comma.
460	*/	447	*/
461		448
		449	void
462	void make_list_like(char *input) {	450	make_list_like (char *input)
		451	{
463	char *p, tmp[MAX_BUF];	452	char *p, tmp[MAX_BUF];
464	int i;	453	int i;
		454
465	if (!input \|\| strlen(input) > MAX_BUF-5) return;	455	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;	456	return;
484	}	457	/* bad stuff would happen if we continued here, the -5 is to make space for ' and ' */
485		458
		459	strncpy (tmp, input, MAX_BUF - 5);
		460	/trim all trailing commas, spaces etc. /
		461	for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--)
		462	tmp[i] = '\0';
		463
		464	strcat (tmp, ".");
		465
		466	p = strrchr (tmp, ',');
		467	if (p)
		468	{
		469	*p = '\0';
		470	strcpy (input, tmp);
		471	p++;
		472	strcat (input, " and");
		473	strcat (input, p);
		474	}
		475	else
		476	strcpy (input, tmp);
		477
		478	return;
		479	}
		480
		481	/////////////////////////////////////////////////////////////////////////////
		482
486	void *	483	void
487	zero_initialised::operator new (size_t s)	484	fork_abort (const char *msg)
488	{	485	{
		486	if (!fork ())
		487	{
		488	signal (SIGABRT, SIG_DFL);
		489	// try to put corefiles into a subdirectory, if existing, to allow
		490	// an administrator to reduce the I/O load.
		491	chdir ("cores");
		492	abort ();
		493	}
		494
		495	LOG (llevError, "fork abort: %s\n", msg);
		496	}
		497
		498	void *salloc_ (int n) throw (std::bad_alloc)
		499	{
		500	#ifdef PREFER_MALLOC
489	void *p = malloc (s);	501	void *ptr = malloc (n);
490		502	#else
491	memset (p, 0, s);	503	void *ptr = g_slice_alloc (n);
		504	#endif
		505
		506	if (!ptr)
		507	throw std::bad_alloc ();
		508
492	return p;	509	return ptr;
493	}	510	}
494		511
495	void	512	void salloc_ (int n, void src) throw (std::bad_alloc)
496	zero_initialised::operator delete (void *p, size_t s)
497	{	513	{
498	free (p);	514	void *ptr = salloc_ (n);
499	}
500		515
		516	if (src)
		517	memcpy (ptr, src, n);
		518	else
		519	memset (ptr, 0, n);
		520
		521	return ptr;
		522	}
		523
		524	void assign (char dst, const char src, int maxlen)
		525	{
		526	if (!src)
		527	src = "";
		528
		529	int len = strlen (src);
		530
		531	if (len >= maxlen - 1)
		532	{
		533	if (maxlen <= 4)
		534	{
		535	memset (dst, '.', maxlen - 1);
		536	dst [maxlen - 1] = 0;
		537	}
		538	else
		539	{
		540	memcpy (dst, src, maxlen - 4);
		541	memcpy (dst + maxlen - 4, "...", 4);
		542	}
		543	}
		544	else
		545	memcpy (dst, src, len + 1);
		546	}
		547
		548	const std::string
		549	format (const char *format, ...)
		550	{
		551	int len;
		552
		553	{
		554	char buf[128];
		555
		556	va_list ap;
		557	va_start (ap, format);
		558	len = vsnprintf (buf, sizeof (buf), format, ap);
		559	va_end (ap);
		560
		561	assert (len >= 0); // shield againstz broken vsnprintf's
		562
		563	// was our static buffer short enough?
		564	if (len < sizeof (buf))
		565	return std::string (buf, len);
		566	}
		567
		568	{
		569	// longer, try harder
		570	char *buf = salloc<char> (len + 1);
		571
		572	va_list ap;
		573	va_start (ap, format);
		574	vsnprintf (buf, len + 1, format, ap);
		575	va_end (ap);
		576
		577	const std::string s (buf, len);
		578	sfree<char> (buf, len + 1);
		579
		580	return buf;
		581	}
		582	}
		583
		584	tstamp now ()
		585	{
		586	struct timeval tv;
		587
		588	gettimeofday (&tv, 0);
		589	return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6);
		590	}
		591
		592	int
		593	similar_direction (int a, int b)
		594	{
		595	if (!a \|\| !b)
		596	return 0;
		597
		598	int diff = (b - a) & 7;
		599	return diff <= 1 \|\| diff >= 7;
		600	}
		601
		602	/* crc32 0xdebb20e3 table and supplementary functions. */
		603	extern const uint32_t crc_32_tab[256] =
		604	{
		605	0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
		606	0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
		607	0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
		608	0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
		609	0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
		610	0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
		611	0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
		612	0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
		613	0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
		614	0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
		615	0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
		616	0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
		617	0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
		618	0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
		619	0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
		620	0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
		621	0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
		622	0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
		623	0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
		624	0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
		625	0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
		626	0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
		627	0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
		628	0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
		629	0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
		630	0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
		631	0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
		632	0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
		633	0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
		634	0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
		635	0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
		636	0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
		637	0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
		638	0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
		639	0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
		640	0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
		641	0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
		642	0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
		643	0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
		644	0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
		645	0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
		646	0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
		647	0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
		648	0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
		649	0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
		650	0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
		651	0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
		652	0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
		653	0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
		654	0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
		655	0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
		656	0x2d02ef8dL
		657	};
		658
		659

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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 1.59 by root, Thu Jun 7 19:12:22 2007 UTC

Diff Legend

Comparing deliantra/server/common/utils.C (file contents):
Revision 1.3 by root, Sun Sep 3 00:18:40 2006 UTC vs.
Revision 1.59 by root, Thu Jun 7 19:12:22 2007 UTC