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flightgear/src/Main/fg_props.cxx
2001-03-24 06:03:11 +00:00

61 lines
1.6 KiB
C++

// fg_props.cxx -- support for
//
// Written by David Megginson, started November 1999.
//
// Copyright (C) 1999, 2000 David Megginson - david@megginson.com
//
// This program 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.
//
// 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, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// $Id$
#include <iostream>
#include <Main/fgfs.hxx>
#include "fg_props.hxx"
using std::istream;
using std::ostream;
/**
* Save the current state of the simulator to a stream.
*/
bool
fgSaveFlight (ostream &output)
{
return writeProperties(output, globals->get_props());
}
/**
* Restore the current state of the simulator from a stream.
*/
bool
fgLoadFlight (istream &input)
{
SGPropertyNode props;
if (readProperties(input, &props)) {
copyProperties(&props, globals->get_props());
// When loading a flight, make it the
// new initial state.
globals->saveInitialState();
} else {
SG_LOG(SG_INPUT, SG_ALERT, "Error restoring flight; aborted");
return false;
}
}
// end of fg_props.cxx