// ExternalNet.hxx -- an net interface to an external flight dynamics model
//
// Written by Curtis Olson, started November 2001.
//
// Copyright (C) 2001  Curtis L. Olson  - http://www.flightgear.org/~curt
//
// 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
//
// $Id$

#ifndef _EXTERNAL_NET_HXX
#define _EXTERNAL_NET_HXX

#include <simgear/timing/timestamp.hxx> // fine grained timing measurements
#include <simgear/io/raw_socket.hxx>

#include <Network/net_ctrls.hxx>
#include <Network/net_fdm.hxx>
#include <FDM/flight.hxx>


class FGExternalNet: public FGInterface {

private:

    int data_in_port;
    int data_out_port;
    int cmd_port;
    std::string fdm_host;

    simgear::Socket data_client;
    simgear::Socket data_server;

    bool valid;

    FGNetCtrls ctrls;
    FGNetFDM fdm;

public:

    // Constructor
    FGExternalNet( double dt, std::string host, int dop, int dip, int cp );

    // Destructor
    ~FGExternalNet();

    // Reset flight params to a specific position
    void init();

    // update the fdm
    void update( double dt );

};


#endif // _EXTERNAL_NET_HXX