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Comparing deliantra/server/include/util.h (file contents):
Revision 1.88 by root, Tue May 5 04:51:56 2009 UTC vs.
Revision 1.92 by root, Tue Oct 20 05:57:08 2009 UTC

1/* 1/*
2 * This file is part of Deliantra, the Roguelike Realtime MMORPG. 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * 3 *
4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team 4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * 5 *
6 * Deliantra is free software: you can redistribute it and/or modify 6 * Deliantra is free software: you can redistribute it and/or modify it under
7 * it under the terms of the GNU General Public License as published by 7 * the terms of the Affero GNU General Public License as published by the
8 * the Free Software Foundation, either version 3 of the License, or 8 * Free Software Foundation, either version 3 of the License, or (at your
9 * (at your option) any later version. 9 * option) any later version.
10 * 10 *
11 * This program is distributed in the hope that it will be useful, 11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details. 14 * GNU General Public License for more details.
15 * 15 *
16 * You should have received a copy of the GNU General Public License 16 * You should have received a copy of the Affero GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>. 17 * and the GNU General Public License along with this program. If not, see
18 * <http://www.gnu.org/licenses/>.
18 * 19 *
19 * The authors can be reached via e-mail to <support@deliantra.net> 20 * The authors can be reached via e-mail to <support@deliantra.net>
20 */ 21 */
21 22
22#ifndef UTIL_H__ 23#ifndef UTIL_H__
… …
211// on modern cpus 212// on modern cpus
212inline int 213inline int
213isqrt (int n) 214isqrt (int n)
214{ 215{
215 return (int)sqrtf ((float)n); 216 return (int)sqrtf ((float)n);
217}
218
219// this is kind of like the ^^ operator, if it would exist, without sequence point.
220// more handy than it looks like, due to the implicit !! done on its arguments
221inline bool
222logical_xor (bool a, bool b)
223{
224 return a != b;
225}
226
227inline bool
228logical_implies (bool a, bool b)
229{
230 return a <= b;
216} 231}
217 232
218// this is only twice as fast as naive sqrtf (dx*dy+dy*dy) 233// this is only twice as fast as naive sqrtf (dx*dy+dy*dy)
219#if 0 234#if 0
220// and has a max. error of 6 in the range -100..+100. 235// and has a max. error of 6 in the range -100..+100.
… …
705// return current time as timestamp 720// return current time as timestamp
706tstamp now (); 721tstamp now ();
707 722
708int similar_direction (int a, int b); 723int similar_direction (int a, int b);
709 724
710// like sprintf, but returns a "static" buffer 725// like v?sprintf, but returns a "static" buffer
726char *vformat (const char *format, va_list ap);
711const char *format (const char *format, ...); 727char *format (const char *format, ...);
728
729// safety-check player input which will become object->msg
730bool msg_is_safe (const char *msg);
712 731
713///////////////////////////////////////////////////////////////////////////// 732/////////////////////////////////////////////////////////////////////////////
714// threads, very very thin wrappers around pthreads 733// threads, very very thin wrappers around pthreads
715 734
716struct thread 735struct thread

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