201 lines
7.4 KiB
C++
201 lines
7.4 KiB
C++
// Filename: directionalLight.cxx
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// Created by: mike (09Jan97)
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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, 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://www.panda3d.org/license.txt .
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//
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// To contact the maintainers of this program write to
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// panda3d@yahoogroups.com .
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//
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////////////////////////////////////////////////////////////////////
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#include "directionalLight.h"
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#include "graphicsStateGuardianBase.h"
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#include "bamWriter.h"
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#include "bamReader.h"
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#include "datagram.h"
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#include "datagramIterator.h"
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TypeHandle DirectionalLight::_type_handle;
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::CData::make_copy
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// Access: Public, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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CycleData *DirectionalLight::CData::
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make_copy() const {
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return new CData(*this);
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}
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::CData::write_datagram
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// Access: Public, Virtual
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// Description: Writes the contents of this object to the datagram
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// for shipping out to a Bam file.
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////////////////////////////////////////////////////////////////////
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void DirectionalLight::CData::
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write_datagram(BamWriter *, Datagram &dg) const {
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_specular_color.write_datagram(dg);
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_point.write_datagram(dg);
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_direction.write_datagram(dg);
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}
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::CData::fillin
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// Access: Public, Virtual
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// Description: This internal function is called by make_from_bam to
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// read in all of the relevant data from the BamFile for
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// the new Light.
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////////////////////////////////////////////////////////////////////
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void DirectionalLight::CData::
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fillin(DatagramIterator &scan, BamReader *) {
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_specular_color.read_datagram(scan);
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_point.read_datagram(scan);
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_direction.read_datagram(scan);
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}
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::Constructor
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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DirectionalLight::
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DirectionalLight(const string &name) :
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LightNode(name)
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{
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}
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::Copy Constructor
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// Access: Protected
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// Description: Do not call the copy constructor directly; instead,
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// use make_copy() or copy_subgraph() to make a copy of
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// a node.
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////////////////////////////////////////////////////////////////////
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DirectionalLight::
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DirectionalLight(const DirectionalLight ©) :
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LightNode(copy),
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_cycler(copy._cycler)
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{
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}
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::make_copy
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// Access: Public, Virtual
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// Description: Returns a newly-allocated PandaNode that is a shallow
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// copy of this one. It will be a different pointer,
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// but its internal data may or may not be shared with
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// that of the original PandaNode. No children will be
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// copied.
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////////////////////////////////////////////////////////////////////
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PandaNode *DirectionalLight::
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make_copy() const {
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return new DirectionalLight(*this);
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}
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::xform
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// Access: Public, Virtual
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// Description: Transforms the contents of this PandaNode by the
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// indicated matrix, if it means anything to do so. For
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// most kinds of PandaNodes, this does nothing.
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////////////////////////////////////////////////////////////////////
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void DirectionalLight::
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xform(const LMatrix4f &mat) {
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LightNode::xform(mat);
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CDWriter cdata(_cycler);
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cdata->_point = cdata->_point * mat;
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cdata->_direction = cdata->_direction * mat;
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mark_viz_stale();
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}
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::write
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// Access: Public, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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void DirectionalLight::
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write(ostream &out, int indent_level) const {
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indent(out, indent_level) << *this << ":\n";
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indent(out, indent_level + 2)
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<< "color " << get_color() << "\n";
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indent(out, indent_level + 2)
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<< "specular color " << get_specular_color() << "\n";
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indent(out, indent_level + 2)
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<< "direction " << get_direction() << "\n";
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}
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::bind
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// Access: Public, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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void DirectionalLight::
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bind(GraphicsStateGuardianBase *gsg, int light_id) {
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gsg->bind_light(this, light_id);
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}
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::register_with_read_factory
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// Access: Public, Static
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// Description: Tells the BamReader how to create objects of type
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// DirectionalLight.
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////////////////////////////////////////////////////////////////////
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void DirectionalLight::
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register_with_read_factory() {
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BamReader::get_factory()->register_factory(get_class_type(), make_from_bam);
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}
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::write_datagram
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// Access: Public, Virtual
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// Description: Writes the contents of this object to the datagram
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// for shipping out to a Bam file.
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////////////////////////////////////////////////////////////////////
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void DirectionalLight::
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write_datagram(BamWriter *manager, Datagram &dg) {
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LightNode::write_datagram(manager, dg);
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manager->write_cdata(dg, _cycler);
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}
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::make_from_bam
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// Access: Protected, Static
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// Description: This function is called by the BamReader's factory
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// when a new object of type DirectionalLight is encountered
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// in the Bam file. It should create the DirectionalLight
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// and extract its information from the file.
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////////////////////////////////////////////////////////////////////
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TypedWritable *DirectionalLight::
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make_from_bam(const FactoryParams ¶ms) {
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DirectionalLight *node = new DirectionalLight("");
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DatagramIterator scan;
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BamReader *manager;
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parse_params(params, scan, manager);
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node->fillin(scan, manager);
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return node;
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}
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////////////////////////////////////////////////////////////////////
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// Function: DirectionalLight::fillin
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// Access: Protected
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// Description: This internal function is called by make_from_bam to
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// read in all of the relevant data from the BamFile for
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// the new DirectionalLight.
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////////////////////////////////////////////////////////////////////
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void DirectionalLight::
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fillin(DatagramIterator &scan, BamReader *manager) {
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LightNode::fillin(scan, manager);
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manager->read_cdata(scan, _cycler);
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}
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