105 lines
2.8 KiB
C++
105 lines
2.8 KiB
C++
/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file analogNode.h
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* @author drose
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* @date 2002-03-12
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*/
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#ifndef ANALOGNODE_H
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#define ANALOGNODE_H
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#include "pandabase.h"
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#include "clientBase.h"
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#include "clientAnalogDevice.h"
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#include "dataNode.h"
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#include "linmath_events.h"
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/**
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* This is the primary interface to analog controls like sliders and joysticks
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* associated with a ClientBase. This creates a node that connects to the
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* named analog device, if it exists, and provides hooks to the user to read
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* the state of any of the sequentially numbered controls associated with that
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* device.
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*
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* Each control can return a value ranging from -1 to 1, reflecting the
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* current position of the control within its total range of motion.
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*
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* The user may choose up to two analog controls to place on the data graph as
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* the two channels of an xy datagram, similarly to the way a mouse places its
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* position data. In this way, an AnalogNode may be used in place of a mouse.
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*/
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class EXPCL_PANDA_DEVICE AnalogNode : public DataNode {
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PUBLISHED:
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explicit AnalogNode(ClientBase *client, const std::string &device_name);
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explicit AnalogNode(InputDevice *device);
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virtual ~AnalogNode();
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INLINE bool is_valid() const;
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INLINE int get_num_controls() const;
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INLINE double get_control_state(int index) const;
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INLINE bool is_control_known(int index) const;
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INLINE void set_output(int channel, int index, bool flip);
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INLINE void clear_output(int channel);
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INLINE int get_output(int channel) const;
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INLINE bool is_output_flipped(int channel) const;
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public:
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virtual void write(std::ostream &out, int indent_level = 0) const;
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private:
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class OutputData {
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public:
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INLINE OutputData();
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int _index;
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bool _flip;
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};
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enum { max_outputs = 2 };
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OutputData _outputs[max_outputs];
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PT(InputDevice) _analog;
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protected:
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// Inherited from DataNode
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virtual void do_transmit_data(DataGraphTraverser *trav,
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const DataNodeTransmit &input,
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DataNodeTransmit &output);
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private:
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// outputs
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int _xy_output;
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PT(EventStoreVec2) _xy;
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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DataNode::init_type();
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register_type(_type_handle, "AnalogNode",
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DataNode::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "analogNode.I"
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#endif
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