66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
#ifndef HANGGLIDE_GLIDERMANIPULATOR
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#define HANGGLIDE_GLIDERMANIPULATOR 1
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#include <osgGA/CameraManipulator>
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class GliderManipulator : public osgGA::CameraManipulator
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{
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public:
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GliderManipulator();
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virtual ~GliderManipulator();
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/** Attach a node to the manipulator.
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Automatically detaches previously attached node.
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setNode(NULL) detaches previously nodes.
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Is ignored by manipulators which do not require a reference model.*/
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virtual void setNode(osg::Node*);
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/** Return node if attached.*/
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virtual const osg::Node* getNode() const;
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/** Move the camera to the default position.
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May be ignored by manipulators if home functionality is not appropriate.*/
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virtual void home(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& us);
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/** Start/restart the manipulator.*/
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virtual void init(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& us);
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/** handle events, return true if handled, false otherwise.*/
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virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& us);
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enum YawControlMode {
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YAW_AUTOMATICALLY_WHEN_BANKED,
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NO_AUTOMATIC_YAW
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};
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/** Set the yaw control between no yaw and yawing when banked.*/
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void setYawControlMode(YawControlMode ycm) { _yawMode = ycm; }
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private:
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/** Reset the internal GUIEvent stack.*/
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void flushMouseEventStack();
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/** Add the current mouse GUIEvent to internal stack.*/
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void addMouseEvent(const osgGA::GUIEventAdapter& ea);
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/** For the give mouse movement calculate the movement of the camera.
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Return true is camera has moved and a redraw is required.*/
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bool calcMovement();
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// Internal event stack comprising last three mouse events.
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osg::ref_ptr<const osgGA::GUIEventAdapter> _ga_t1;
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osg::ref_ptr<const osgGA::GUIEventAdapter> _ga_t0;
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osg::ref_ptr<osg::Node> _node;
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float _modelScale;
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float _velocity;
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YawControlMode _yawMode;
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};
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#endif
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