Initial revision.
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curt
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139
src/Network/native_ctrls.cxx
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139
src/Network/native_ctrls.cxx
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// native_ctrls.cxx -- FGFS "Native" controls I/O class
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//
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// Written by Curtis Olson, started July 2001.
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//
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// Copyright (C) 2001 Curtis L. Olson - curt@flightgear.org
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#include <simgear/debug/logstream.hxx>
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#include <simgear/io/iochannel.hxx>
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#include "native_ctrls.hxx"
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FGNativeCtrls::FGNativeCtrls() {
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}
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FGNativeCtrls::~FGNativeCtrls() {
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}
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// open hailing frequencies
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bool FGNativeCtrls::open() {
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if ( is_enabled() ) {
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SG_LOG( SG_IO, SG_ALERT, "This shouldn't happen, but the channel "
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<< "is already in use, ignoring" );
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return false;
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}
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SGIOChannel *io = get_io_channel();
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if ( ! io->open( get_direction() ) ) {
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SG_LOG( SG_IO, SG_ALERT, "Error opening channel communication layer." );
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return false;
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}
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set_enabled( true );
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return true;
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}
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static void global2raw( FGControls *global, FGRawCtrls *raw ) {
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int i;
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raw->aileron = globals->get_controls()->get_aileron();
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raw->elevator = globals->get_controls()->get_elevator();
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raw->elevator_trim = globals->get_controls()->get_elevator_trim();
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raw->rudder = globals->get_controls()->get_rudder();
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raw->flaps = globals->get_controls()->get_flaps();
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for ( i = 0; i < FG_MAX_ENGINES; ++i ) {
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raw->throttle[i] = globals->get_controls()->get_throttle(i);
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raw->mixture[i] = globals->get_controls()->get_mixture(i);
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raw->prop_advance[i] = globals->get_controls()->get_prop_advance(i);
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}
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for ( i = 0; i < FG_MAX_WHEELS; ++i ) {
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raw->brake[i] = globals->get_controls()->get_brake(i);
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}
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}
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static void raw2global( FGRawCtrls *raw, FGControls *global ) {
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int i;
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globals->get_controls()->set_aileron( raw->aileron );
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globals->get_controls()->set_elevator( raw->elevator );
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globals->get_controls()->set_elevator_trim( raw->elevator_trim );
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globals->get_controls()->set_rudder( raw->rudder );
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globals->get_controls()->set_flaps( raw->flaps );
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for ( i = 0; i < FG_MAX_ENGINES; ++i ) {
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globals->get_controls()->set_throttle( i, raw->throttle[i] );
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globals->get_controls()->set_mixture( i, raw->mixture[i] );
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globals->get_controls()->set_prop_advance( i, raw->prop_advance[i] );
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}
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for ( i = 0; i < FG_MAX_WHEELS; ++i ) {
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globals->get_controls()->set_brake( i, raw->brake[i] );
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}
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}
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// process work for this port
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bool FGNativeCtrls::process() {
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SGIOChannel *io = get_io_channel();
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int length = sizeof(FGRawCtrls);
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if ( get_direction() == SG_IO_OUT ) {
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// cout << "size of cur_fdm_state = " << length << endl;
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global2raw( globals->get_controls(), &raw_ctrls );
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if ( ! io->write( (char *)(& raw_ctrls), length ) ) {
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SG_LOG( SG_IO, SG_ALERT, "Error writing data." );
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return false;
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}
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} else if ( get_direction() == SG_IO_IN ) {
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if ( io->get_type() == sgFileType ) {
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if ( io->read( (char *)(& raw_ctrls), length ) == length ) {
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SG_LOG( SG_IO, SG_DEBUG, "Success reading data." );
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raw2global( &raw_ctrls, globals->get_controls() );
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}
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} else {
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while ( io->read( (char *)(& raw_ctrls), length ) == length ) {
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SG_LOG( SG_IO, SG_DEBUG, "Success reading data." );
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raw2global( &raw_ctrls, globals->get_controls() );
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}
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}
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}
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return true;
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}
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// close the channel
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bool FGNativeCtrls::close() {
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SGIOChannel *io = get_io_channel();
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set_enabled( false );
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if ( ! io->close() ) {
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return false;
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}
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return true;
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}
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65
src/Network/native_ctrls.hxx
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65
src/Network/native_ctrls.hxx
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// native_ctrls.hxx -- FGFS "Native" controls I/O class
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//
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// Written by Curtis Olson, started July 2001.
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//
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// Copyright (C) 2001 Curtis L. Olson - curt@flightgear.org
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#ifndef _FG_NATIVE_CTRLS_HXX
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#define _FG_NATIVE_CTRLS_HXX
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#include <simgear/compiler.h>
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#include STL_STRING
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#include <Controls/controls.hxx>
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#include "protocol.hxx"
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#include "raw_ctrls.hxx"
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SG_USING_STD(string);
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class FGNativeCtrls : public FGProtocol {
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FGRawCtrls raw_ctrls;
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FGControls ctrls;
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int length;
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public:
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FGNativeCtrls();
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~FGNativeCtrls();
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// open hailing frequencies
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bool open();
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// process work for this port
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bool process();
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// close the channel
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bool close();
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};
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#endif // _FG_NATIVE_CTRLS_HXX
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58
src/Network/raw_ctrls.hxx
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58
src/Network/raw_ctrls.hxx
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@ -0,0 +1,58 @@
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// raw_ctrls.hxx -- defines a common raw I/O interface to the flight
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// sim controls
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//
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// Written by Curtis Olson, started July 2001.
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//
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// Copyright (C) 2001 Curtis L. Olson - curt@flightgear.com
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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// $Id$
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#ifndef _RAW_CTRLS_HXX
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#define _RAW_CTRLS_HXX
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#ifndef __cplusplus
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# error This library requires C++
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#endif
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const int FG_MAX_ENGINES = 10;
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const int FG_MAX_WHEELS = 3;
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// Define a structure containing the control parameters
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class FGRawCtrls {
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public:
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double aileron; // -1 ... 1
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double elevator; // -1 ... 1
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double elevator_trim; // -1 ... 1
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double rudder; // -1 ... 1
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double flaps; // 0 ... 1
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double throttle[FG_MAX_ENGINES]; // 0 ... 1
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double mixture[FG_MAX_ENGINES]; // 0 ... 1
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double prop_advance[FG_MAX_ENGINES]; // 0 ... 1
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double brake[FG_MAX_WHEELS]; // 0 ... 1
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};
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#endif // _RAW_CTRLS_HXX
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