Panda3D
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sequenceNode.h
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file sequenceNode.h
10 * @author drose
11 * @date 2002-03-06
12 */
13
14#ifndef SEQUENCENODE_H
15#define SEQUENCENODE_H
16
17#include "pandabase.h"
18
19#include "selectiveChildNode.h"
20#include "animInterface.h"
21#include "clockObject.h"
22
23/**
24 * A node that automatically cycles through rendering each one of its children
25 * according to its frame rate.
26 */
27class EXPCL_PANDA_PGRAPHNODES SequenceNode : public SelectiveChildNode, public AnimInterface {
28PUBLISHED:
29 INLINE explicit SequenceNode(const std::string &name);
30
31protected:
32 SequenceNode(const SequenceNode &copy);
33
34PUBLISHED:
35 virtual int get_num_frames() const;
36 INLINE void set_frame_rate(double frame_rate);
37
38 MAKE_PROPERTY(frame_rate, get_frame_rate, set_frame_rate);
39
40public:
41 virtual PandaNode *make_copy() const;
42 virtual bool safe_to_combine() const;
43 virtual bool safe_to_combine_children() const;
44
45 virtual bool cull_callback(CullTraverser *trav, CullTraverserData &data);
46 virtual int get_first_visible_child() const;
47 virtual bool has_single_child_visibility() const;
48 virtual int get_visible_child() const;
49
50 virtual void output(std::ostream &out) const;
51
52public:
53 static void register_with_read_factory();
54 virtual void write_datagram(BamWriter *manager, Datagram &dg);
55
56protected:
57 static TypedWritable *make_from_bam(const FactoryParams &params);
58 void fillin(DatagramIterator &scan, BamReader *manager);
59
60public:
61 static TypeHandle get_class_type() {
62 return _type_handle;
63 }
64 static void init_type() {
65 SelectiveChildNode::init_type();
66 AnimInterface::init_type();
67 register_type(_type_handle, "SequenceNode",
68 SelectiveChildNode::get_class_type(),
69 AnimInterface::get_class_type());
70 }
71 virtual TypeHandle get_type() const {
72 return get_class_type();
73 }
74 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
75
76private:
77 static TypeHandle _type_handle;
78};
79
80#include "sequenceNode.I"
81
82#endif
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
This is the fundamental interface for things that have a play/loop/stop type interface for frame-base...
get_num_frames
Returns the number of frames in the animation.
This is the fundamental interface for extracting binary objects from a Bam file, as generated by a Ba...
Definition bamReader.h:110
This is the fundamental interface for writing binary objects to a Bam file, to be extracted later by ...
Definition bamWriter.h:63
This collects together the pieces of data that are accumulated for each node while walking the scene ...
This object performs a depth-first traversal of the scene graph, with optional view-frustum culling,...
A class to retrieve the individual data elements previously stored in a Datagram.
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
Definition datagram.h:38
An instance of this class is passed to the Factory when requesting it to do its business and construc...
A basic node of the scene graph or data graph.
Definition pandaNode.h:65
virtual bool has_single_child_visibility() const
Should be overridden by derived classes to return true if this kind of node has the special property ...
virtual bool safe_to_combine() const
Returns true if it is generally safe to combine this particular kind of PandaNode with other kinds of...
virtual int get_visible_child() const
Returns the index number of the currently visible child of this node.
virtual bool safe_to_combine_children() const
Returns true if it is generally safe to combine the children of this PandaNode with each other.
static void register_with_read_factory()
Tells the BamReader how to create objects of type PandaNode.
virtual PandaNode * make_copy() const
Returns a newly-allocated PandaNode that is a shallow copy of this one.
virtual void write_datagram(BamWriter *manager, Datagram &dg)
Writes the contents of this object to the datagram for shipping out to a Bam file.
A base class for nodes like LODNode and SequenceNode that select only one visible child at a time.
virtual int get_first_visible_child() const
Returns the index number of the first visible child of this node, or a number >= get_num_children() i...
A node that automatically cycles through rendering each one of its children according to its frame ra...
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
Base class for objects that can be written to and read from Bam files.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.