70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
// Filename: selectiveChildNode.h
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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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#ifndef SELECTIVECHILDNODE_H
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#define SELECTIVECHILDNODE_H
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#include "pandabase.h"
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#include "pandaNode.h"
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////////////////////////////////////////////////////////////////////
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// Class : SelectiveChildNode
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// Description : A base class for nodes like LODNode and SequenceNode
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// that select only one visible child at a time.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA_PGRAPHNODES SelectiveChildNode : public PandaNode {
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PUBLISHED:
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INLINE SelectiveChildNode(const string &name);
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protected:
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INLINE SelectiveChildNode(const SelectiveChildNode ©);
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public:
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virtual bool has_selective_visibility() const;
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virtual int get_first_visible_child() const;
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virtual int get_next_visible_child(int n) const;
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protected:
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INLINE void select_child(int n);
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private:
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// Not sure if this should be cycled or not. It's not exactly
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// thread-safe not to cycle it, but it doesn't really need the full
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// pipeline control. It's probably a problem in the non-thread-safe
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// design; need to rethink the design a bit.
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int _selected_child;
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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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PandaNode::init_type();
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register_type(_type_handle, "SelectiveChildNode",
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PandaNode::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 "selectiveChildNode.I"
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#endif
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