98 lines
2.1 KiB
Text
98 lines
2.1 KiB
Text
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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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* @file workingNodePath.I
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* @author drose
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* @date 2002-03-16
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*/
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/**
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* Creates a WorkingNodePath that is the same as the indicated NodePath. This
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* is generally used to begin the traversal of a scene graph with the root
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* NodePath.
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*/
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INLINE WorkingNodePath::
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WorkingNodePath(const NodePath &start) {
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nassertv(!start.is_empty());
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_next = nullptr;
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_start = start._head;
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_node = start.node();
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}
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/**
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*
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*/
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INLINE WorkingNodePath::
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WorkingNodePath(const WorkingNodePath ©) :
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_next(copy._next),
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_start(copy._start),
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_node(copy._node)
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{
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nassertv(_next != nullptr ||
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_start != nullptr);
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}
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/**
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* Creates a WorkingNodePath that is the same as the indicated
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* WorkingNodePath, plus one node. This is generally used to continue the
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* traversal to the next node.
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*/
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INLINE WorkingNodePath::
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WorkingNodePath(const WorkingNodePath &parent, PandaNode *child) :
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_next(&parent),
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_start(nullptr),
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_node(child) {
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nassertv(_node != _next->_node);
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}
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/**
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*
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*/
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INLINE WorkingNodePath::
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~WorkingNodePath() {
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}
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/**
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*
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*/
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INLINE void WorkingNodePath::
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operator = (const WorkingNodePath ©) {
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_next = copy._next;
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_start = copy._start;
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_node = copy._node;
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nassertv(_next != nullptr ||
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_start != nullptr);
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}
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/**
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* Constructs and returns an actual NodePath that represents the same path we
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* have just traversed.
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*/
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INLINE NodePath WorkingNodePath::
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get_node_path() const {
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NodePath result;
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result._head = r_get_node_path();
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nassertr(result._head != nullptr, NodePath::fail());
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return result;
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}
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/**
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* Returns the node traversed to so far.
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*/
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INLINE PandaNode *WorkingNodePath::
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node() const {
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return _node;
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}
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INLINE std::ostream &
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operator << (std::ostream &out, const WorkingNodePath &node_path) {
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node_path.output(out);
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return out;
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}
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