149 lines
5.4 KiB
C++
149 lines
5.4 KiB
C++
// Filename: animBundleNode.cxx
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// Created by: drose (06Mar02)
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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) 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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////////////////////////////////////////////////////////////////////
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#include "animBundleNode.h"
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#include "datagram.h"
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#include "datagramIterator.h"
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#include "bamReader.h"
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#include "bamWriter.h"
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TypeHandle AnimBundleNode::_type_handle;
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////////////////////////////////////////////////////////////////////
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// Function: AnimBundleNode::make_copy
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// Access: Public, Virtual
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// Description:
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////////////////////////////////////////////////////////////////////
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PandaNode *AnimBundleNode::
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make_copy() const {
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return new AnimBundleNode(*this);
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}
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////////////////////////////////////////////////////////////////////
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// Function: AnimBundleNode::safe_to_flatten
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// Access: Public, Virtual
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// Description: Returns true if it is generally safe to flatten out
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// this particular kind of Node by duplicating
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// instances, false otherwise (for instance, a Camera
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// cannot be safely flattened, because the Camera
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// pointer itself is meaningful).
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////////////////////////////////////////////////////////////////////
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bool AnimBundleNode::
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safe_to_flatten() const {
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return false;
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}
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////////////////////////////////////////////////////////////////////
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// Function: AnimBundleNode::find_anim_bundle
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// Access: Published, Static
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// Description: Recursively walks the scene graph beginning at the
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// indicated node (which need not be an AnimBundleNode),
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// and returns the first AnimBundle found. Returns NULL
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// if no AnimBundle can be found.
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////////////////////////////////////////////////////////////////////
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AnimBundle *AnimBundleNode::
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find_anim_bundle(PandaNode *root) {
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nassertr(root != (PandaNode *)NULL, NULL);
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if (root->is_of_type(AnimBundleNode::get_class_type())) {
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AnimBundleNode *anode = DCAST(AnimBundleNode, root);
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AnimBundle *anim = anode->get_bundle();
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if (anim != (AnimBundle *)NULL) {
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return anim;
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}
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}
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Children cr = root->get_children();
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int num_children = cr.get_num_children();
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for (int i = 0; i < num_children; i++) {
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AnimBundle *anim = find_anim_bundle(cr.get_child(i));
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if (anim != (AnimBundle *)NULL) {
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return anim;
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}
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}
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return NULL;
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}
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////////////////////////////////////////////////////////////////////
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// Function: AnimBundleNode::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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// AnimBundleNode.
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////////////////////////////////////////////////////////////////////
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void AnimBundleNode::
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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: AnimBundleNode::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 AnimBundleNode::
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write_datagram(BamWriter *manager, Datagram &dg) {
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PandaNode::write_datagram(manager, dg);
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manager->write_pointer(dg, _bundle);
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}
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////////////////////////////////////////////////////////////////////
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// Function: AnimBundleNode::complete_pointers
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// Access: Public, Virtual
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// Description: Receives an array of pointers, one for each time
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// manager->read_pointer() was called in fillin().
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// Returns the number of pointers processed.
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////////////////////////////////////////////////////////////////////
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int AnimBundleNode::
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complete_pointers(TypedWritable **p_list, BamReader* manager) {
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int pi = PandaNode::complete_pointers(p_list, manager);
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_bundle = DCAST(AnimBundle, p_list[pi++]);
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return pi;
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}
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////////////////////////////////////////////////////////////////////
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// Function: AnimBundleNode::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 this type is encountered
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// in the Bam file. It should create the object
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// and extract its information from the file.
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////////////////////////////////////////////////////////////////////
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TypedWritable *AnimBundleNode::
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make_from_bam(const FactoryParams ¶ms) {
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AnimBundleNode *node = new AnimBundleNode;
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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: AnimBundleNode::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 PandaNode.
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////////////////////////////////////////////////////////////////////
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void AnimBundleNode::
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fillin(DatagramIterator &scan, BamReader* manager) {
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PandaNode::fillin(scan, manager);
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manager->read_pointer(scan);
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}
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