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flightgear/utils/fgai/HLASceneObject.cxx
2012-11-24 10:34:08 +01:00

126 lines
4.4 KiB
C++

// Copyright (C) 2009 - 2012 Mathias Froehlich - Mathias.Froehlich@web.de
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Library 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.
//
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "HLASceneObject.hxx"
#include <simgear/hla/HLAArrayDataElement.hxx>
#include "HLASceneObjectClass.hxx"
#include "AIPhysics.hxx"
namespace fgai {
class HLASceneObject::Location : public simgear::HLAAbstractLocation {
public:
Location() :
_position(SGVec3d::zeros()),
_imag(SGVec3d::zeros()),
_angularVelocity(SGVec3d::zeros()),
_linearVelocity(SGVec3d::zeros())
{ }
virtual SGLocationd getLocation() const
{ return SGLocationd(_position, SGQuatd::fromPositiveRealImag(_imag)); }
virtual void setLocation(const SGLocationd& location)
{
_position = location.getPosition();
_imag = location.getOrientation().getPositiveRealImag();
}
virtual SGVec3d getCartPosition() const
{ return _position; }
virtual void setCartPosition(const SGVec3d& position)
{ _position = position; }
virtual SGQuatd getCartOrientation() const
{ return SGQuatd::fromPositiveRealImag(_imag); }
virtual void setCartOrientation(const SGQuatd& orientation)
{ _imag = orientation.getPositiveRealImag(); }
virtual SGVec3d getAngularBodyVelocity() const
{ return _angularVelocity; }
virtual void setAngularBodyVelocity(const SGVec3d& angularVelocity)
{ _angularVelocity = angularVelocity; }
virtual SGVec3d getLinearBodyVelocity() const
{ return _linearVelocity; }
virtual void setLinearBodyVelocity(const SGVec3d& linearVelocity)
{ _linearVelocity = linearVelocity; }
virtual double getTimeDifference(const SGTimeStamp& timeStamp) const
{ return _position.getDataElement()->getTimeDifference(timeStamp); }
simgear::HLADataElement* getPositionDataElement()
{ return _position.getDataElement(); }
simgear::HLADataElement* getOrientationDataElement()
{ return _imag.getDataElement(); }
simgear::HLADataElement* getAngularVelocityDataElement()
{ return _angularVelocity.getDataElement(); }
simgear::HLADataElement* getLinearVelocityDataElement()
{ return _linearVelocity.getDataElement(); }
private:
simgear::HLAVec3dData _position;
simgear::HLAVec3dData _imag;
simgear::HLAVec3dData _angularVelocity;
simgear::HLAVec3dData _linearVelocity;
};
HLASceneObject::HLASceneObject(HLASceneObjectClass* objectClass) :
HLAObjectInstance(objectClass)
{
}
HLASceneObject::~HLASceneObject()
{
}
void
HLASceneObject::createAttributeDataElements()
{
/// FIXME at some point we should not need that anymore
HLAObjectInstance::createAttributeDataElements();
assert(dynamic_cast<HLASceneObjectClass*>(getObjectClass().get()));
HLASceneObjectClass& objectClass = static_cast<HLASceneObjectClass&>(*getObjectClass());
Location* location = new Location;
setAttributeDataElement(objectClass.getPositionIndex(), location->getPositionDataElement());
setAttributeDataElement(objectClass.getOrientationIndex(), location->getOrientationDataElement());
setAttributeDataElement(objectClass.getAngularVelocityIndex(), location->getAngularVelocityDataElement());
setAttributeDataElement(objectClass.getLinearVelocityIndex(), location->getLinearVelocityDataElement());
_location = location;
}
void
HLASceneObject::setLocation(const AIPhysics& physics)
{
if (!_location.valid())
return;
/// In the long term do not just copy, but also decide how long to skip updates to the hla attributes ...
_location->setLocation(physics.getLocation());
_location->setAngularBodyVelocity(physics.getAngularBodyVelocity());
_location->setLinearBodyVelocity(physics.getLinearBodyVelocity());
}
} // namespace fgai