123 lines
4.1 KiB
C++
123 lines
4.1 KiB
C++
// Filename: analogNode.cxx
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// Created by: drose (12Mar02)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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#include "analogNode.h"
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#include "config_device.h"
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#include "dataNodeTransmit.h"
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#include "dcast.h"
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TypeHandle AnalogNode::_type_handle;
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////////////////////////////////////////////////////////////////////
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// Function: AnalogNode::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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AnalogNode::
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AnalogNode(ClientBase *client, const string &device_name) :
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DataNode(device_name)
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{
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_xy_output = define_output("xy", EventStoreVec2::get_class_type());
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_xy = new EventStoreVec2(LPoint2f(0.0f, 0.0f));
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nassertv(client != (ClientBase *)NULL);
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PT(ClientDevice) device =
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client->get_device(ClientAnalogDevice::get_class_type(), device_name);
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if (device == (ClientDevice *)NULL) {
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device_cat.warning()
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<< "Unable to open analog device " << device_name << "\n";
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return;
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}
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if (!device->is_of_type(ClientAnalogDevice::get_class_type())) {
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device_cat.error()
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<< "Inappropriate device type " << device->get_type()
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<< " created; expected a ClientAnalogDevice.\n";
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return;
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}
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_analog = DCAST(ClientAnalogDevice, device);
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}
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////////////////////////////////////////////////////////////////////
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// Function: AnalogNode::Destructor
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// Access: Public, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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AnalogNode::
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~AnalogNode() {
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// When the _analog pointer destructs, the ClientAnalogDevice
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// disconnects itself from the ClientBase, and everything that needs
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// to get turned off does. Magic.
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}
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////////////////////////////////////////////////////////////////////
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// Function: AnalogNode::write
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// Access: Public, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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void AnalogNode::
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write(ostream &out, int indent_level) const {
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DataNode::write(out, indent_level);
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if (_analog != (ClientAnalogDevice *)NULL) {
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_analog->lock();
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_analog->write_controls(out, indent_level + 2);
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_analog->unlock();
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: AnalogNode::do_transmit_data
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// Access: Protected, Virtual
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// Description: The virtual implementation of transmit_data(). This
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// function receives an array of input parameters and
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// should generate an array of output parameters. The
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// input parameters may be accessed with the index
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// numbers returned by the define_input() calls that
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// were made earlier (presumably in the constructor);
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// likewise, the output parameters should be set with
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// the index numbers returned by the define_output()
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// calls.
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////////////////////////////////////////////////////////////////////
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void AnalogNode::
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do_transmit_data(const DataNodeTransmit &, DataNodeTransmit &output) {
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if (is_valid()) {
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_analog->poll();
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LPoint2f out(0.0f, 0.0f);
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_analog->lock();
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for (int i = 0; i < max_outputs; i++) {
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if (_outputs[i]._index >= 0 &&
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_analog->is_control_known(_outputs[i]._index)) {
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if (_outputs[i]._flip) {
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out[i] = -_analog->get_control_state(_outputs[i]._index);
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} else {
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out[i] = _analog->get_control_state(_outputs[i]._index);
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}
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}
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}
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_analog->unlock();
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_xy->set_value(out);
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output.set_data(_xy_output, EventParameter(_xy));
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}
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}
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