25 return new CData(*
this);
53 void SwitchNode::CData::
62 void SwitchNode::CData::
144 CDReader cdata(_cycler);
145 return cdata->_visible_child;
178 node->fillin(scan, manager);
189 SelectiveChildNode::fillin(scan, manager);
void parse_params(const FactoryParams ¶ms, DatagramIterator &scan, BamReader *&manager)
Takes in a FactoryParams, passed from a WritableFactory into any TypedWritable's make function,...
This is the fundamental interface for extracting binary objects from a Bam file, as generated by a Ba...
void read_cdata(DatagramIterator &scan, PipelineCyclerBase &cycler)
Reads in the indicated CycleData object.
static WritableFactory * get_factory()
Returns the global WritableFactory for generating TypedWritable objects.
This is the fundamental interface for writing binary objects to a Bam file, to be extracted later by ...
void write_cdata(Datagram &packet, const PipelineCyclerBase &cycler)
Writes out the indicated CycleData object.
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 single page of data maintained by a PipelineCycler.
A class to retrieve the individual data elements previously stored in a Datagram.
int32_t get_int32()
Extracts a signed 32-bit integer.
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
void add_int32(int32_t value)
Adds a signed 32-bit integer to the datagram.
An instance of this class is passed to the Factory when requesting it to do its business and construc...
void register_factory(TypeHandle handle, CreateFunc *func, void *user_data=nullptr)
Registers a new kind of thing the Factory will be able to create.
A basic node of the scene graph or data graph.
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.
A node that renders only one of its children, according to the user's indication.
virtual bool cull_callback(CullTraverser *trav, CullTraverserData &data)
This function will be called during the cull traversal to perform any additional operations that shou...
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 bool safe_to_combine_children() const
Returns true if it is generally safe to combine the children of this PandaNode with each other.
virtual void write_datagram(BamWriter *manager, Datagram &dg)
Writes the contents of this object to the datagram for shipping out to a Bam file.
static void register_with_read_factory()
Tells the BamReader how to create objects of type SwitchNode.
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...
get_visible_child
Returns the index of the child that should be visible.
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 PandaNode * make_copy() const
Returns a newly-allocated Node that is a shallow copy of this one.
TypeHandle is the identifier used to differentiate C++ class types.
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.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.