engine_api.cpp

// vi: set ts=4 sw=4 :
// vim: set tw=75 :

// engine_api.cpp - implementation of Half-Life engine functions

/*
 * Copyright (c) 2001-2006 Will Day <willday@hpgx.net>
 *
 *    This file is part of Metamod.
 *
 *    Metamod is free software; you can redistribute it and/or modify it
 *    under the terms of the GNU General Public License as published by the
 *    Free Software Foundation; either version 2 of the License, or (at
 *    your option) any later version.
 *
 *    Metamod 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 Metamod; if not, write to the Free Software Foundation,
 *    Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *    In addition, as a special exception, the author gives permission to
 *    link the code of this program with the Half-Life Game Engine ("HL
 *    Engine") and Modified Game Libraries ("MODs") developed by Valve,
 *    L.L.C ("Valve").  You must obey the GNU General Public License in all
 *    respects for all of the code used other than the HL Engine and MODs
 *    from Valve.  If you modify this file, you may extend this exception
 *    to your version of the file, but you are not obligated to do so.  If
 *    you do not wish to do so, delete this exception statement from your
 *    version.
 *
 */

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

#include <extdll.h>

#include "engine_api.h"
#include "meta_api.h"
#include "log_plugin.h"

enginefuncs_t meta_engfuncs;

C_DLLEXPORT int GetEngineFunctions(enginefuncs_t *pengfuncsFromEngine, 
		int *interfaceVersion) 
{
	LOG_DEVELOPER(PLID, "called: GetEngineFunctions; version=%d", 
			*interfaceVersion);
	if(!pengfuncsFromEngine) {
		LOG_ERROR(PLID, 
				"GetEngineFunctions called with null pengfuncsFromEngine");
		return(FALSE);
	}
	else if(*interfaceVersion != ENGINE_INTERFACE_VERSION) {
		LOG_ERROR(PLID, 
				"GetEngineFunctions version mismatch; requested=%d ours=%d", 
				*interfaceVersion, ENGINE_INTERFACE_VERSION);
		// Tell metamod what version we had, so it can figure out who is 
		// out of date.
		*interfaceVersion = ENGINE_INTERFACE_VERSION;
		return(FALSE);
	}
	memcpy(pengfuncsFromEngine, &meta_engfuncs, sizeof(enginefuncs_t));
	return TRUE;
}