216 lines
8.2 KiB
Plaintext
216 lines
8.2 KiB
Plaintext
// Filename: geomNode.I
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// Created by: drose (23Feb02)
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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) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::GeomEntry::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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INLINE GeomNode::GeomEntry::
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GeomEntry(Geom *geom, const RenderState *state) :
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_geom(geom),
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_state(state)
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{
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}
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::CData::Constructor
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// Access: Public
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// Description:
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////////////////////////////////////////////////////////////////////
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INLINE GeomNode::CData::
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CData() {
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}
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::get_num_geoms
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// Access: Public
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// Description: Returns the number of geoms in the node.
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////////////////////////////////////////////////////////////////////
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INLINE int GeomNode::
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get_num_geoms() const {
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CDReader cdata(_cycler);
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return cdata->_geoms.size();
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}
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::get_geom
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// Access: Public
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// Description: Returns the nth geom of the node. This object should
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// not be modified, since the same object might be
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// shared between multiple different GeomNodes, but see
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// get_unique_geom().
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////////////////////////////////////////////////////////////////////
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INLINE const Geom *GeomNode::
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get_geom(int n) const {
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CDReader cdata(_cycler);
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nassertr(n >= 0 && n < (int)cdata->_geoms.size(), NULL);
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return cdata->_geoms[n]._geom;
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}
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::get_unique_geom
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// Access: Public
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// Description: This method is deprecated; you should call
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// modify_geom() instead.
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////////////////////////////////////////////////////////////////////
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INLINE Geom *GeomNode::
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get_unique_geom(int n) {
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pgraph_cat.warning()
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<< "Deprecated method GeomNode::get_unique_geom() called. Use modify_geom() instead.\n";
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return modify_geom(n);
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}
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::modify_geom
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// Access: Public
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// Description: Returns the nth geom of the node, suitable for
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// modifying it. If the nth Geom has multiple reference
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// counts to it, reassigns it to an identical copy
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// first, and returns the new copy--this provides a
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// "copy on write" that ensures that the Geom that is
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// returned is unique to this GeomNode and is not shared
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// with any other GeomNodes.
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//
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// Note that if this method is called in a downstream
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// stage (for instance, during cull or draw), then it
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// will propagate the new list of Geoms upstream all the
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// way to pipeline stage 0, which may step on changes
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// that were made independently in pipeline stage 0.
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// Use with caution.
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////////////////////////////////////////////////////////////////////
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INLINE Geom *GeomNode::
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modify_geom(int n) {
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CDWriter cdata(_cycler, true);
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nassertr(n >= 0 && n < (int)cdata->_geoms.size(), NULL);
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Geom *geom = cdata->_geoms[n]._geom;
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if (geom->get_ref_count() > 1) {
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geom = cdata->_geoms[n]._geom = geom->make_copy();
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}
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return geom;
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}
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::get_geom_state
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// Access: Public
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// Description: Returns the RenderState associated with the nth geom
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// of the node. This is just the RenderState directly
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// associated with the Geom; the actual state in which
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// the Geom is rendered will also be affected by
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// RenderStates that appear on the scene graph in nodes
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// above this GeomNode.
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////////////////////////////////////////////////////////////////////
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INLINE const RenderState *GeomNode::
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get_geom_state(int n) const {
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CDReader cdata(_cycler);
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nassertr(n >= 0 && n < (int)cdata->_geoms.size(), NULL);
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return cdata->_geoms[n]._state;
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}
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::set_geom_state
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// Access: Public
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// Description: Changes the RenderState associated with the nth geom
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// of the node. This is just the RenderState directly
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// associated with the Geom; the actual state in which
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// the Geom is rendered will also be affected by
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// RenderStates that appear on the scene graph in nodes
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// above this GeomNode.
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//
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// Note that if this method is called in a downstream
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// stage (for instance, during cull or draw), then it
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// will propagate the new list of Geoms upstream all the
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// way to pipeline stage 0, which may step on changes
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// that were made independently in pipeline stage 0.
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// Use with caution.
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////////////////////////////////////////////////////////////////////
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INLINE void GeomNode::
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set_geom_state(int n, const RenderState *state) {
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CDWriter cdata(_cycler, true);
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nassertv(n >= 0 && n < (int)cdata->_geoms.size());
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cdata->_geoms[n]._state = state;
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}
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::remove_geom
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// Access: Published
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// Description: Removes the nth geom from the node.
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////////////////////////////////////////////////////////////////////
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INLINE void GeomNode::
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remove_geom(int n) {
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CDWriter cdata(_cycler);
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nassertv(n >= 0 && n < (int)cdata->_geoms.size());
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cdata->_geoms.erase(cdata->_geoms.begin() + n);
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mark_internal_bounds_stale();
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}
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::remove_all_geoms
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// Access: Published
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// Description: Removes all the geoms from the node at once.
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////////////////////////////////////////////////////////////////////
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INLINE void GeomNode::
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remove_all_geoms() {
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CDWriter cdata(_cycler);
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cdata->_geoms.clear();
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mark_internal_bounds_stale();
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}
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::get_default_collide_mask
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// Access: Published, Static
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// Description: Returns the default into_collide_mask assigned to new
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// GeomNodes.
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////////////////////////////////////////////////////////////////////
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INLINE CollideMask GeomNode::
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get_default_collide_mask() {
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return default_geom_node_collide_mask;
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}
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::count_name
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// Access: Private
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// Description: Increments the count for the indicated InternalName.
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////////////////////////////////////////////////////////////////////
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INLINE void GeomNode::
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count_name(GeomNode::NameCount &name_count, const InternalName *name) {
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pair<NameCount::iterator, bool> result =
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name_count.insert(NameCount::value_type(name, 1));
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if (!result.second) {
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(*result.first).second++;
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: GeomNode::get_name_count
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// Access: Private
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// Description: Returns the count for the indicated InternalName.
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////////////////////////////////////////////////////////////////////
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INLINE int GeomNode::
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get_name_count(const GeomNode::NameCount &name_count, const InternalName *name) {
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NameCount::const_iterator ni;
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ni = name_count.find(name);
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if (ni != name_count.end()) {
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return (*ni).second;
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}
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return 0;
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}
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