util.cpp

/**
 * vim: set ts=4 :
 * =============================================================================
 * SourceMod Team Fortress 2 Extension
 * Copyright (C) 2004-2008 AlliedModders LLC.  All rights reserved.
 * =============================================================================
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, version 3.0, as published by the
 * Free Software Foundation.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * As a special exception, AlliedModders LLC gives you permission to link the
 * code of this program (as well as its derivative works) to "Half-Life 2," the
 * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
 * by the Valve Corporation.  You must obey the GNU General Public License in
 * all respects for all other code used.  Additionally, AlliedModders LLC grants
 * this exception to all derivative works.  AlliedModders LLC defines further
 * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
 * or <http://www.sourcemod.net/license.php>.
 *
 * Version: $Id$
 */

#include <stdarg.h>
#include <stdio.h>

#include "extension.h"
#include "util.h"

size_t UTIL_Format(char *buffer, size_t maxlength, const char *fmt, ...)
{
	va_list ap;
	va_start(ap, fmt);
	size_t len = vsnprintf(buffer, maxlength, fmt, ap);
	va_end(ap);

	if (len >= maxlength)
	{
		buffer[maxlength - 1] = '\0';
		return (maxlength - 1);
	}
	else
	{
		return len;
	}
}

/* Taken from Sourcemod Tf2 Extension */
CBaseEntity *UTIL_GetCBaseEntity(int num, bool onlyPlayers)
{
	edict_t *pEdict = PEntityOfEntIndex(num);
	if (!pEdict || pEdict->IsFree())
	{
		return NULL;
	}

	if (num > 0 && num <= playerhelpers->GetMaxClients())
	{
		IGamePlayer *pPlayer = playerhelpers->GetGamePlayer(pEdict);
		if (!pPlayer || !pPlayer->IsConnected())
		{
			return NULL;
		}
	}
	else if (onlyPlayers)
	{
		return NULL;
	}

	IServerUnknown *pUnk;
	if ((pUnk=pEdict->GetUnknown()) == NULL)
	{
		return NULL;
	}

	return pUnk->GetBaseEntity();
}