83 lines
2.2 KiB
Plaintext
83 lines
2.2 KiB
Plaintext
//C++ header - Open Scene Graph - Copyright (C) 1998-2002 Robert Osfield
|
|
//Distributed under the terms of the GNU Library General Public License (LGPL)
|
|
//as published by the Free Software Foundation.
|
|
|
|
#ifndef OSGGA_FLIGHTMANIPULATOR
|
|
#define OSGGA_FLIGHTMANIPULATOR 1
|
|
|
|
#include <osgGA/CameraManipulator>
|
|
|
|
namespace osgGA{
|
|
|
|
/**
|
|
FlightManipulator is a CameraManipulator which provides flight simulator-like
|
|
updating of the camera position & orientation. By default, the left mouse
|
|
button accelerates, the right mouse button decelerates, and the middle mouse
|
|
button (or left and right simultaneously) stops dead.
|
|
*/
|
|
|
|
class OSGGA_EXPORT FlightManipulator : public CameraManipulator
|
|
{
|
|
public:
|
|
|
|
FlightManipulator();
|
|
virtual ~FlightManipulator();
|
|
|
|
virtual void setNode(osg::Node*);
|
|
|
|
virtual const osg::Node* getNode() const;
|
|
|
|
virtual osg::Node* getNode();
|
|
|
|
virtual void home(const GUIEventAdapter& ea,GUIActionAdapter& us);
|
|
|
|
virtual void init(const GUIEventAdapter& ea,GUIActionAdapter& us);
|
|
|
|
virtual bool handle(const GUIEventAdapter& ea,GUIActionAdapter& us);
|
|
|
|
enum YawControlMode {
|
|
YAW_AUTOMATICALLY_WHEN_BANKED,
|
|
NO_AUTOMATIC_YAW
|
|
};
|
|
|
|
/** Configure the Yaw control for the flight model. */
|
|
void setYawControlMode(YawControlMode ycm) { _yawMode = ycm; }
|
|
|
|
protected:
|
|
|
|
/** Reset the internal GUIEvent stack.*/
|
|
void flushMouseEventStack();
|
|
/** Add the current mouse GUIEvent to internal stack.*/
|
|
void addMouseEvent(const GUIEventAdapter& ea);
|
|
|
|
void computeLocalDataFromCamera();
|
|
|
|
void computeCameraFromLocalData();
|
|
|
|
/** For the give mouse movement calculate the movement of the camera.
|
|
Return true is camera has moved and a redraw is required.*/
|
|
bool calcMovement();
|
|
|
|
|
|
// Internal event stack comprising last three mouse events.
|
|
osg::ref_ptr<const GUIEventAdapter> _ga_t1;
|
|
osg::ref_ptr<const GUIEventAdapter> _ga_t0;
|
|
|
|
osg::ref_ptr<osg::Node> _node;
|
|
|
|
float _modelScale;
|
|
float _velocity;
|
|
|
|
YawControlMode _yawMode;
|
|
|
|
osg::Vec3 _eye;
|
|
osg::Quat _rotation;
|
|
float _distance;
|
|
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|
|
|