131 lines
3.5 KiB
C++
131 lines
3.5 KiB
C++
// component.cxx - Base class for autopilot components
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//
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// Written by Torsten Dreyer
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// Based heavily on work created by Curtis Olson, started January 2004.
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//
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// Copyright (C) 2004 Curtis L. Olson - http://www.flightgear.org/~curt
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// Copyright (C) 2010 Torsten Dreyer - Torsten (at) t3r (dot) de
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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#include "component.hxx"
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#include <Main/fg_props.hxx>
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#include <simgear/structure/exception.hxx>
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#include <simgear/props/condition.hxx>
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using namespace FGXMLAutopilot;
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Component::Component() :
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_enable_value(NULL),
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_enabled(false),
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_debug(false),
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_honor_passive(false)
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{
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}
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Component::~Component()
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{
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delete _enable_value;
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}
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bool Component::configure( SGPropertyNode_ptr configNode )
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{
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for (int i = 0; i < configNode->nChildren(); ++i ) {
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SGPropertyNode_ptr prop;
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SGPropertyNode_ptr child = configNode->getChild(i);
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std::string cname(child->getName());
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if( configure( cname, child ) )
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continue;
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} // for configNode->nChildren()
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return true;
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}
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bool Component::configure( const std::string & nodeName, SGPropertyNode_ptr configNode )
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{
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SG_LOG( SG_AUTOPILOT, SG_BULK, "Component::configure(" << nodeName << ")" << std::endl );
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if ( nodeName == "name" ) {
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_name = configNode->getStringValue();
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return true;
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}
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if ( nodeName == "debug" ) {
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_debug = configNode->getBoolValue();
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return true;
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}
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if ( nodeName == "enable" ) {
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SGPropertyNode_ptr prop;
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if( (prop = configNode->getChild("condition")) != NULL ) {
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_condition = sgReadCondition(fgGetNode("/"), prop);
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return true;
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}
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if ( (prop = configNode->getChild( "property" )) != NULL ) {
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_enable_prop = fgGetNode( prop->getStringValue(), true );
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}
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if ( (prop = configNode->getChild( "prop" )) != NULL ) {
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_enable_prop = fgGetNode( prop->getStringValue(), true );
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}
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if ( (prop = configNode->getChild( "value" )) != NULL ) {
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delete _enable_value;
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_enable_value = new std::string(prop->getStringValue());
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}
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if ( (prop = configNode->getChild( "honor-passive" )) != NULL ) {
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_honor_passive = prop->getBoolValue();
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}
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return true;
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} // enable
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SG_LOG( SG_AUTOPILOT, SG_BULK, "Component::configure(" << nodeName << ") [unhandled]" << std::endl );
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return false;
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}
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bool Component::isPropertyEnabled()
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{
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if( _condition )
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return _condition->test();
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if( _enable_prop ) {
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if( _enable_value ) {
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return *_enable_value == _enable_prop->getStringValue();
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} else {
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return _enable_prop->getBoolValue();
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}
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}
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return true;
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}
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void Component::update( double dt )
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{
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bool firstTime = false;
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if( isPropertyEnabled() ) {
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firstTime = !_enabled;
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_enabled = true;
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} else {
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_enabled = false;
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}
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if( _enabled ) update( firstTime, dt );
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else disabled( dt );
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}
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