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extensions/tf2/util.cpp
author David Anderson <dvander@alliedmods.net>
Thu Aug 08 22:02:42 2013 -0700 (2013-08-08)
changeset 3980 dc7dfcd855dc
parent 2001 428da4bc4235
child 4092 f184c016f489
permissions -rw-r--r--
More Windows build fix. 
     1 /**
     2  * vim: set ts=4 :
     3  * =============================================================================
     4  * SourceMod Team Fortress 2 Extension
     5  * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
     6  * =============================================================================
     7  *
     8  * This program is free software; you can redistribute it and/or modify it under
     9  * the terms of the GNU General Public License, version 3.0, as published by the
    10  * Free Software Foundation.
    11  * 
    12  * This program is distributed in the hope that it will be useful, but WITHOUT
    13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    14  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
    15  * details.
    16  *
    17  * You should have received a copy of the GNU General Public License along with
    18  * this program.  If not, see <http://www.gnu.org/licenses/>.
    19  *
    20  * As a special exception, AlliedModders LLC gives you permission to link the
    21  * code of this program (as well as its derivative works) to "Half-Life 2," the
    22  * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
    23  * by the Valve Corporation.  You must obey the GNU General Public License in
    24  * all respects for all other code used.  Additionally, AlliedModders LLC grants
    25  * this exception to all derivative works.  AlliedModders LLC defines further
    26  * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
    27  * or <http://www.sourcemod.net/license.php>.
    28  *
    29  * Version: $Id$
    30  */
    31 
    32 #include "extension.h"
    33 #include "util.h"
    34 
    35 size_t UTIL_Format(char *buffer, size_t maxlength, const char *fmt, ...)
    36 {
    37 	va_list ap;
    38 	va_start(ap, fmt);
    39 	size_t len = vsnprintf(buffer, maxlength, fmt, ap);
    40 	va_end(ap);
    41 
    42 	if (len >= maxlength)
    43 	{
    44 		buffer[maxlength - 1] = '\0';
    45 		return (maxlength - 1);
    46 	}
    47 	else
    48 	{
    49 		return len;
    50 	}
    51 }
    52 
    53 bool UTIL_FindDataTable(SendTable *pTable, 
    54 						  const char *name,
    55 						  sm_sendprop_info_t *info,
    56 						  unsigned int offset)
    57 {
    58 	const char *pname;
    59 	int props = pTable->GetNumProps();
    60 	SendProp *prop;
    61 	SendTable *table;
    62 
    63 	for (int i=0; i<props; i++)
    64 	{
    65 		prop = pTable->GetProp(i);
    66 
    67 		if ((table = prop->GetDataTable()) != NULL)
    68 		{
    69 			pname = table->GetName();
    70 			if (pname && strcmp(name, pname) == 0)
    71 			{
    72 				info->prop = prop;
    73 				info->actual_offset = offset + info->prop->GetOffset();
    74 				return true;
    75 			}
    76 
    77 			if (UTIL_FindDataTable(table, 
    78 				name,
    79 				info,
    80 				offset + prop->GetOffset())
    81 				)
    82 			{
    83 				return true;
    84 			}
    85 		}
    86 	}
    87 
    88 	return false;
    89 }
    90 
    91 ServerClass *UTIL_FindServerClass(const char *classname)
    92 {
    93 	ServerClass *sc = gamedll->GetAllServerClasses();
    94 	while (sc)
    95 	{
    96 		if (strcmp(classname, sc->GetName()) == 0)
    97 		{
    98 			return sc;
    99 		}
   100 		sc = sc->m_pNext;
   101 	}
   102 
   103 	return NULL;
   104 }
   105 
   106 CBaseEntity *UTIL_GetCBaseEntity(int num, bool onlyPlayers)
   107 {
   108 	edict_t *pEdict = engine->PEntityOfEntIndex(num);
   109 	if (!pEdict || pEdict->IsFree())
   110 	{
   111 		return NULL;
   112 	}
   113 
   114 	if (num > 0 && num <= playerhelpers->GetMaxClients())
   115 	{
   116 		IGamePlayer *pPlayer = playerhelpers->GetGamePlayer(pEdict);
   117 		if (!pPlayer || !pPlayer->IsConnected())
   118 		{
   119 			return NULL;
   120 		}
   121 	}
   122 	else if (onlyPlayers)
   123 	{
   124 		return NULL;
   125 	}
   126 
   127 	IServerUnknown *pUnk;
   128 	if ((pUnk=pEdict->GetUnknown()) == NULL)
   129 	{
   130 		return NULL;
   131 	}
   132 
   133 	return pUnk->GetBaseEntity();
   134 }
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