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CollisionGeom Class Reference

A special CollisionPolygon created just for the purpose of detecting collision against geometry. More...

#include "collisionGeom.h"

Inheritance diagram for CollisionGeom:
CollisionPolygon CollisionPlane CollisionSolid CopyOnWriteObject CachedTypedWritableReferenceCount TypedWritableReferenceCount TypedWritable ReferenceCount TypedObject MemoryBase MemoryBase

List of all members.

Public Member Functions

virtual ReferenceCountas_reference_count ()
 Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type.
TypedObjectas_typed_object ()
 Returns the object, upcast (if necessary) to a TypedObject pointer.
const TypedObjectas_typed_object () const
 Returns the object, upcast (if necessary) to a TypedObject pointer.
void cache_ref () const
 Explicitly increments the cache reference count and the normal reference count simultaneously.
bool cache_unref () const
 Explicitly decrements the cache reference count and the normal reference count simultaneously.
void clear_effective_normal ()
 Removes the normal previously set by set_effective_normal().
virtual int complete_pointers (TypedWritable **p_list, BamReader *manager)
 Receives an array of pointers, one for each time manager->read_pointer() was called in fillin().
 CPT (BoundingVolume) get_bounds() const
float dist_to_plane (const LPoint3f &point) const
string encode_to_bam_stream () const
 Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a string string.
bool encode_to_bam_stream (string &data, BamWriter *writer=NULL) const
 Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string.
virtual void finalize (BamReader *manager)
 Called by the BamReader to perform any final actions needed for setting up the object after all objects have been read and all pointers have been completed.
virtual TypeHandle force_init_type ()
UpdateSeq get_bam_modified () const
 Returns the current bam_modified counter.
int get_best_parent_from_Set (const std::set< int > &) const
int get_cache_ref_count () const
 Returns the current reference count.
virtual LPoint3f get_collision_origin () const
 Returns the point in space deemed to be the "origin" of the solid for collision purposes.
const LVector3fget_effective_normal () const
 Returns the normal that was set by set_effective_normal().
LVector3f get_normal () const
int get_num_points () const
 Returns the number of vertices of the CollisionPolygon.
const Planef & get_plane () const
LPoint3f get_point (int n) const
 Returns the nth vertex of the CollisionPolygon, expressed in 3-D space.
int get_ref_count () const
 Returns the current reference count.
bool get_respect_effective_normal () const
 See set_respect_effective_normal().
virtual PStatCollectorget_test_pcollector ()
 Returns a PStatCollector that is used to count the number of intersection tests made against a solid of this type in a given frame.
virtual TypeHandle get_type () const
int get_type_index () const
 Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.
virtual PStatCollectorget_volume_pcollector ()
 Returns a PStatCollector that is used to count the number of bounding volume tests made against a solid of this type in a given frame.
WeakReferenceListget_weak_list () const
 Returns the WeakReferenceList associated with this ReferenceCount object.
bool has_effective_normal () const
 Returns true if a special normal was set by set_effective_normal(), false otherwise.
bool has_weak_list () const
 Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise.
bool is_concave () const
 Returns true if the CollisionPolygon appears to be concave, or false if it is safely convex.
bool is_exact_type (TypeHandle handle) const
 Returns true if the current object is the indicated type exactly.
bool is_of_type (TypeHandle handle) const
 Returns true if the current object is or derives from the indicated type.
bool is_tangible () const
 Returns whether the solid is considered 'tangible' or not.
bool is_valid () const
 Returns true if the CollisionPolygon is valid (that is, it has at least three vertices), or false otherwise.
void local_object ()
 This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack.
virtual CollisionSolidmake_copy ()
 MAKE_SEQ (get_points, get_num_points, get_point)
void mark_bam_modified ()
 Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams.
void operator delete (void *ptr)
void operator delete (void *ptr, void *)
void operator delete (void *ptr)
void operator delete (void *ptr, void *)
void operator delete[] (void *ptr)
void operator delete[] (void *, void *)
void operator delete[] (void *ptr)
void operator delete[] (void *, void *)
void * operator new (size_t size, void *ptr)
void * operator new (size_t size, void *ptr)
void * operator new (size_t size)
void * operator new (size_t size)
void * operator new[] (size_t size, void *ptr)
void * operator new[] (size_t size, void *ptr)
void * operator new[] (size_t size)
void * operator new[] (size_t size)
virtual void output (ostream &out) const
virtual PT (PandaNode) get_viz(const CullTraverser *trav
void ref () const
 Explicitly increments the reference count.
virtual bool require_fully_complete () const
 Some objects require all of their nested pointers to have been completed before the objects themselves can be completed.
void set_bounds (const BoundingVolume &bounding_volume)
 Returns the solid's bounding volume.
void set_effective_normal (const LVector3f &effective_normal)
 Records a false normal for this CollisionSolid that will be reported by the collision system with all collisions into it, instead of its actual normal.
void set_plane (const Planef &plane)
void set_respect_effective_normal (bool respect_effective_normal)
 This is only meaningful for CollisionSolids that will be added to a traverser as colliders.
void set_tangible (bool tangible)
 Sets the current state of the 'tangible' flag.
bool test_ref_count_integrity () const
 Does some easy checks to make sure that the reference count isn't completely bogus.
bool test_ref_count_nonzero () const
 Does some easy checks to make sure that the reference count isn't zero, or completely bogus.
virtual bool unref () const
 Explicitly decrements the reference count.
virtual void update_bam_nested (BamWriter *manager)
 Called by the BamWriter when this object has not itself been modified recently, but it should check its nested objects for updates.
void weak_ref (WeakPointerToVoid *ptv)
 Adds the indicated PointerToVoid as a weak reference to this object.
void weak_unref (WeakPointerToVoid *ptv)
 Removes the indicated PointerToVoid as a weak reference to this object.
virtual void write (ostream &out, int indent_level=0) const
virtual void write_datagram (BamWriter *manager, Datagram &me)
 Function to write the important information in the particular object to a Datagram.
virtual void xform (const LMatrix4f &mat)
 Transforms the solid by the indicated matrix.

Static Public Member Functions

static bool decode_raw_from_bam_stream (TypedWritable *&ptr, ReferenceCount *&ref_ptr, const string &data, BamReader *reader=NULL)
 Reads the string created by a previous call to encode_to_bam_stream(), and extracts the single object on that string.
static void flush_level ()
 Flushes the PStatCollectors used during traversal.
static TypeHandle get_class_type ()
static void init_type ()
static TypedWritablemake_CollisionPlane (const FactoryParams &params)
 Factory method to generate a CollisionPlane object.
static TypedWritablemake_CollisionPolygon (const FactoryParams &params)
 Factory method to generate a CollisionPolygon object.
static PT (TypedWritableReferenceCount) decode_from_bam_stream(const string &data
static void register_with_read_factory ()
 Factory method to generate a CollisionPolygon object.
static bool verify_points (const LPoint3f &a, const LPoint3f &b, const LPoint3f &c, const LPoint3f &d)
 Verifies that the indicated set of points will define a valid CollisionPolygon: that is, at least three non-collinear points, with no points repeated.
static bool verify_points (const LPoint3f &a, const LPoint3f &b, const LPoint3f &c)
 Verifies that the indicated set of points will define a valid CollisionPolygon: that is, at least three non-collinear points, with no points repeated.
static bool verify_points (const LPoint3f *begin, const LPoint3f *end)
 Verifies that the indicated set of points will define a valid CollisionPolygon: that is, at least three non-collinear points, with no points repeated.

Public Attributes

virtual const
CullTraverserData bool
bounds_only 
const
virtual const CullTraverserDatadata
static BamReaderreader = NULL)

Static Public Attributes

static TypedWritable *const Null = (TypedWritable*)0L

Protected Member Functions

void cache_unref_only () const
 Decrements the cache reference count without affecting the normal reference count.
 CPT (RenderState) get_solid_viz_state()
 CPT (RenderState) get_other_bounds_viz_state()
 CPT (RenderState) get_wireframe_viz_state()
 CPT (RenderState) get_other_viz_state()
 CPT (RenderState) get_solid_bounds_viz_state()
 CPT (RenderState) get_wireframe_bounds_viz_state()
bool do_has_effective_normal () const
 Returns true if a special normal was set by set_effective_normal(), false otherwise.
bool do_is_tangible () const
 Returns whether the solid is considered 'tangible' or not.
bool do_test_ref_count_integrity () const
 Does some easy checks to make sure that the reference count isn't completely bogus.
bool do_test_ref_count_nonzero () const
 Returns true if the reference count is nonzero, false otherwise.
virtual void fill_viz_geom ()
 Fills the _viz_geom GeomNode up with Geoms suitable for rendering this solid.
void fillin (DatagramIterator &scan, BamReader *manager)
 Function that reads out of the datagram (or asks manager to read) all of the data that is needed to re-create this object and stores it in the appropiate place.
void mark_internal_bounds_stale ()
 Should be called by a derived class to mark the internal bounding volume stale, so that recompute_internal_bounds() will be called when the bounding volume is next requested.
void mark_viz_stale ()
 Called internally when the visualization may have been compromised by some change to internal state and will need to be recomputed the next time it is rendered.
virtual PT (CopyOnWriteObject) make_cow_copy()
virtual PT (CollisionEntry) test_intersection_from_sphere(const CollisionEntry &entry) const
virtual PT (BoundingVolume) compute_internal_bounds() const
virtual PT (CollisionEntry) test_intersection_from_ray(const CollisionEntry &entry) const
virtual PT (CollisionEntry) test_intersection_from_line(const CollisionEntry &entry) const
virtual PT (CollisionEntry) test_intersection_from_parabola(const CollisionEntry &entry) const
virtual PT (CollisionEntry) test_intersection_from_segment(const CollisionEntry &entry) const
 PT (GeomNode) _viz_geom

Static Protected Member Functions

static void report_undefined_from_intersection (TypeHandle from_type)
 Outputs a message the first time an intersection test is attempted that isn't defined, and explains a bit about what it means.
static void report_undefined_intersection_test (TypeHandle from_type, TypeHandle into_type)
 Outputs a message the first time an intersection test is attempted that isn't defined, and explains a bit about what it means.

Friends

class CollisionTraverser

Detailed Description

A special CollisionPolygon created just for the purpose of detecting collision against geometry.

This kind of object does not have any persistance in the scene graph; it is created on-the-fly.

You should not attempt to create one of these directly; it is created only by the CollisionTraverser, as needed.

Definition at line 33 of file collisionGeom.h.


Member Function Documentation

ReferenceCount * TypedWritableReferenceCount::as_reference_count ( ) [virtual, inherited]

Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type.

Reimplemented from TypedWritable.

Definition at line 26 of file typedWritableReferenceCount.cxx.

TypedObject * TypedObject::as_typed_object ( ) [inline, inherited]

Returns the object, upcast (if necessary) to a TypedObject pointer.

Definition at line 99 of file typedObject.I.

const TypedObject * TypedObject::as_typed_object ( ) const [inline, inherited]

Returns the object, upcast (if necessary) to a TypedObject pointer.

Definition at line 110 of file typedObject.I.

void CachedTypedWritableReferenceCount::cache_ref ( ) const [inline, inherited]

Explicitly increments the cache reference count and the normal reference count simultaneously.

Reimplemented in RenderState, and TransformState.

Definition at line 147 of file cachedTypedWritableReferenceCount.I.

References ReferenceCount::ref(), and CachedTypedWritableReferenceCount::test_ref_count_integrity().

Referenced by CopyOnWritePointer::get_write_pointer().

bool CachedTypedWritableReferenceCount::cache_unref ( ) const [inline, inherited]

Explicitly decrements the cache reference count and the normal reference count simultaneously.

The return value is true if the new reference count is nonzero, false if it is zero.

Reimplemented in RenderState, and TransformState.

Definition at line 166 of file cachedTypedWritableReferenceCount.I.

References CachedTypedWritableReferenceCount::test_ref_count_integrity(), and ReferenceCount::unref().

void CachedTypedWritableReferenceCount::cache_unref_only ( ) const [inline, protected, inherited]

Decrements the cache reference count without affecting the normal reference count.

Intended to be called by derived classes only, presumably to reimplement cache_unref().

Definition at line 204 of file cachedTypedWritableReferenceCount.I.

References CachedTypedWritableReferenceCount::test_ref_count_integrity().

void CollisionSolid::clear_effective_normal ( ) [inline, inherited]

Removes the normal previously set by set_effective_normal().

Definition at line 78 of file collisionSolid.I.

int TypedWritable::complete_pointers ( TypedWritable **  p_list,
BamReader manager 
) [virtual, inherited]

Receives an array of pointers, one for each time manager->read_pointer() was called in fillin().

Returns the number of pointers processed.

This is the callback function that is made by the BamReader at some later point, after all of the required pointers have been filled in. It is necessary because there might be forward references in a bam file; when we call read_pointer() in fillin(), the object may not have been read from the file yet, so we do not have a pointer available at that time. Thus, instead of returning a pointer, read_pointer() simply reserves a later callback. This function provides that callback. The calling object is responsible for keeping track of the number of times it called read_pointer() and extracting the same number of pointers out of the supplied vector, and storing them appropriately within the object.

Reimplemented in CFDoCullCommand, AnimBundleNode, AnimChannelMatrixDynamic, AnimChannelScalarDynamic, AnimGroup, MovingPartBase, PartBundle, PartBundleNode, PartGroup, Character, CharacterJoint, CharacterJointEffect, CharacterVertexSlider, JointVertexTransform, CollisionNode, DataNodeTransmit, GeomVertexArrayData, GeomVertexArrayFormat, GeomVertexData, GeomVertexFormat, SliderTable, TextureStage, TransformBlendTable, TransformTable, PiecewiseCurve, ClipPlaneAttrib, FogAttrib, LensNode, LightAttrib, MaterialAttrib, PortalNode, RenderEffects, RenderState, TexGenAttrib, TexMatrixAttrib, TexProjectorEffect, TextureAttrib, BamCacheIndex, RecorderFrame, EggFile, ImageFile, PaletteGroup, PaletteGroups, PaletteImage, PalettePage, Palettizer, SourceTextureImage, TextureImage, TexturePlacement, TextureProperties, and TextureReference.

Definition at line 103 of file typedWritable.cxx.

bool TypedWritable::decode_raw_from_bam_stream ( TypedWritable *&  ptr,
ReferenceCount *&  ref_ptr,
const string &  data,
BamReader reader = NULL 
) [static, inherited]

Reads the string created by a previous call to encode_to_bam_stream(), and extracts the single object on that string.

Returns true on success, false on on error.

This variant sets the TypedWritable and ReferenceCount pointers separately; both are pointers to the same object. The reference count is not incremented; it is the caller's responsibility to manage the reference count.

Note that this method cannot be used to retrieve objects that do not inherit from ReferenceCount, because these objects cannot persist beyond the lifetime of the BamReader that reads them. To retrieve these objects from a bam stream, you must construct a BamReader directly.

If you happen to know that the particular object in question inherits from TypedWritableReferenceCount or PandaNode, consider calling the variant of decode_from_bam_stream() defined for those methods, which presents a simpler interface.

Definition at line 353 of file typedWritable.cxx.

References BamReader::init(), DatagramInputFile::open(), DatagramInputFile::read_header(), BamReader::read_object(), ReferenceCount::ref(), BamReader::resolve(), BamReader::set_source(), and ReferenceCount::unref().

bool CollisionSolid::do_has_effective_normal ( ) const [inline, protected, inherited]

Returns true if a special normal was set by set_effective_normal(), false otherwise.

Assumes the lock is already held.

Definition at line 161 of file collisionSolid.I.

Referenced by CollisionSolid::get_effective_normal(), and CollisionSolid::has_effective_normal().

bool CollisionSolid::do_is_tangible ( ) const [inline, protected, inherited]

Returns whether the solid is considered 'tangible' or not.

Assumes the lock is already held.

Definition at line 149 of file collisionSolid.I.

Referenced by CollisionSolid::is_tangible().

bool CachedTypedWritableReferenceCount::do_test_ref_count_integrity ( ) const [protected, inherited]

Does some easy checks to make sure that the reference count isn't completely bogus.

Reimplemented from ReferenceCount.

Reimplemented in NodeCachedReferenceCount.

Definition at line 26 of file cachedTypedWritableReferenceCount.cxx.

Referenced by CachedTypedWritableReferenceCount::test_ref_count_integrity().

bool ReferenceCount::do_test_ref_count_nonzero ( ) const [protected, inherited]

Returns true if the reference count is nonzero, false otherwise.

Definition at line 56 of file referenceCount.cxx.

References ReferenceCount::do_test_ref_count_integrity().

Referenced by ReferenceCount::test_ref_count_nonzero().

string TypedWritable::encode_to_bam_stream ( ) const [inline, inherited]

Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a string string.

Returns empty string on failure.

This is a convenience method particularly useful for cases when you are only serializing a single object. If you have many objects to process, it is more efficient to use the same BamWriter to serialize all of them together.

Definition at line 86 of file typedWritable.I.

bool TypedWritable::encode_to_bam_stream ( string &  data,
BamWriter writer = NULL 
) const [inherited]

Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string.

Returns true on success, false on failure.

This is a convenience method particularly useful for cases when you are only serializing a single object. If you have many objects to process, it is more efficient to use the same BamWriter to serialize all of them together.

Definition at line 283 of file typedWritable.cxx.

References BamWriter::init(), DatagramOutputFile::open(), BamWriter::set_target(), DatagramOutputFile::write_header(), and BamWriter::write_object().

void CollisionPolygon::fill_viz_geom ( ) [protected, virtual, inherited]

Fills the _viz_geom GeomNode up with Geoms suitable for rendering this solid.

Reimplemented from CollisionPlane.

Definition at line 901 of file collisionPolygon.cxx.

void CollisionPolygon::fillin ( DatagramIterator scan,
BamReader manager 
) [protected, virtual, inherited]

Function that reads out of the datagram (or asks manager to read) all of the data that is needed to re-create this object and stores it in the appropiate place.

Reimplemented from CollisionPlane.

Definition at line 1473 of file collisionPolygon.cxx.

References BamReader::get_file_minor_ver(), DatagramIterator::get_uint16(), LVecBase2f::read_datagram(), and LVecBase3f::size().

Referenced by CollisionPolygon::make_CollisionPolygon().

void TypedWritable::finalize ( BamReader manager) [virtual, inherited]

Called by the BamReader to perform any final actions needed for setting up the object after all objects have been read and all pointers have been completed.

Reimplemented in PartBundle, Geom, GeomPrimitive, GeomVertexArrayData, GeomVertexArrayFormat, GeomVertexData, InternalName, GeomNode, LightAttrib, RenderAttrib, RenderEffect, RenderEffects, RenderState, PaletteGroup, and Palettizer.

Definition at line 145 of file typedWritable.cxx.

Referenced by BamReader::finalize_now().

void CollisionPolygon::flush_level ( ) [inline, static, inherited]

Flushes the PStatCollectors used during traversal.

Reimplemented from CollisionPlane.

Definition at line 134 of file collisionPolygon.I.

UpdateSeq TypedWritable::get_bam_modified ( ) const [inline, inherited]

Returns the current bam_modified counter.

This counter is normally incremented automatically whenever the object is modified.

Definition at line 66 of file typedWritable.I.

Referenced by BamWriter::consider_update(), and BamWriter::write_pointer().

int CachedTypedWritableReferenceCount::get_cache_ref_count ( ) const [inline, inherited]
LPoint3f CollisionPolygon::get_collision_origin ( ) const [virtual, inherited]

Returns the point in space deemed to be the "origin" of the solid for collision purposes.

The closest intersection point to this origin point is considered to be the most significant.

Reimplemented from CollisionPlane.

Definition at line 232 of file collisionPolygon.cxx.

Referenced by CollisionHandlerPusher::handle_entries().

const LVector3f & CollisionSolid::get_effective_normal ( ) const [inline, inherited]

Returns the normal that was set by set_effective_normal().

It is an error to call this unless has_effective_normal() returns true.

Definition at line 103 of file collisionSolid.I.

References CollisionSolid::do_has_effective_normal(), and LVector3f::zero().

int CollisionPolygon::get_num_points ( ) const [inline, inherited]

Returns the number of vertices of the CollisionPolygon.

Definition at line 75 of file collisionPolygon.I.

LPoint3f CollisionPolygon::get_point ( int  n) const [inline, inherited]

Returns the nth vertex of the CollisionPolygon, expressed in 3-D space.

Definition at line 86 of file collisionPolygon.I.

References LPoint3f::zero().

int ReferenceCount::get_ref_count ( ) const [inline, inherited]
bool CollisionSolid::get_respect_effective_normal ( ) const [inline, inherited]

See set_respect_effective_normal().

Definition at line 137 of file collisionSolid.I.

PStatCollector & CollisionGeom::get_test_pcollector ( ) [virtual]

Returns a PStatCollector that is used to count the number of intersection tests made against a solid of this type in a given frame.

Reimplemented from CollisionPolygon.

Definition at line 51 of file collisionGeom.cxx.

int TypedObject::get_type_index ( ) const [inline, inherited]

Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.

This is equivalent to get_type().get_index().

Definition at line 52 of file typedObject.I.

References TypeHandle::get_index().

PStatCollector & CollisionGeom::get_volume_pcollector ( ) [virtual]

Returns a PStatCollector that is used to count the number of bounding volume tests made against a solid of this type in a given frame.

Reimplemented from CollisionPolygon.

Definition at line 39 of file collisionGeom.cxx.

WeakReferenceList * ReferenceCount::get_weak_list ( ) const [inline, inherited]

Returns the WeakReferenceList associated with this ReferenceCount object.

If there has never been a WeakReferenceList associated with this object, creates one now.

Definition at line 307 of file referenceCount.I.

Referenced by ReferenceCount::weak_ref().

bool CollisionSolid::has_effective_normal ( ) const [inline, inherited]

Returns true if a special normal was set by set_effective_normal(), false otherwise.

Definition at line 90 of file collisionSolid.I.

References CollisionSolid::do_has_effective_normal().

bool ReferenceCount::has_weak_list ( ) const [inline, inherited]

Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise.

In general, this will be true if there was ever a WeakPointerTo created for this object (even if there is not any for it now).

Definition at line 294 of file referenceCount.I.

Referenced by ReferenceCount::weak_unref().

bool CollisionPolygon::is_concave ( ) const [inherited]

Returns true if the CollisionPolygon appears to be concave, or false if it is safely convex.

Definition at line 146 of file collisionPolygon.cxx.

bool TypedObject::is_exact_type ( TypeHandle  handle) const [inline, inherited]
bool TypedObject::is_of_type ( TypeHandle  handle) const [inline, inherited]

Returns true if the current object is or derives from the indicated type.

Definition at line 63 of file typedObject.I.

References TypeHandle::is_derived_from().

Referenced by EggSliderData::add_back_pointer(), EggJointData::add_back_pointer(), CIntervalManager::add_c_interval(), XFileNode::add_child(), CollisionTraverser::add_collider(), CollisionHandlerPhysical::add_collider(), EggXfmSAnim::add_data(), CharacterJointBundle::add_node(), NonlinearImager::add_screen(), EggGroupNode::apply_first_attribute(), EggGroupNode::apply_last_attribute(), DeferredNodeProperty::apply_to_node(), RecorderController::begin_playback(), NodePath::clear_clip_plane(), EggGroupNode::clear_connected_shading(), NodePath::clear_light(), EggBase::convert_paths(), NodePath::decode_from_bam_stream(), VrpnClient::disconnect_device(), PhysicsManager::do_physics(), GraphicsStateGuardian::fetch_specified_part(), EggRenderState::fill_state(), AnimBundleNode::find_anim_bundle(), EggGroupNode::find_coordsys_entry(), XFile::find_data_object(), Character::find_joint(), EggGroupNode::find_materials(), Character::find_slider(), XFile::find_template(), EggGroupNode::find_textures(), EggMaterialCollection::find_used_materials(), EggTextureCollection::find_used_textures(), EggGroupNode::force_filenames(), EggJointData::force_initial_rest_frame(), WindowFramework::get_aspect_2d(), EggPoolUniquifier::get_category(), EggGroupUniquifier::get_category(), EggGroupNode::get_connected_shading(), PandaFramework::get_mouse(), FactoryParams::get_param_of_type(), EggGroupNode::has_absolute_pathnames(), NodePath::has_clip_plane(), NodePath::has_clip_plane_off(), NodePath::has_light(), PandaFramework::hide_collision_solids(), x11GraphicsWindow::open_window(), eglGraphicsWindow::open_window(), EggNode::parse_egg(), CharacterMaker::part_to_node(), EggGroupNode::post_apply_flat_attribute(), EggBinner::prepare_node(), PortalClipper::prepare_portal(), NodePath::project_texture(), EggMatrixTablePointer::quantize_channels(), ParametricCurveCollection::r_add_curves(), SceneGraphReducer::r_collect_vertex_data(), EggGroupNode::r_load_externals(), EggGroupNode::rebuild_vertex_pools(), EggGroupNode::recompute_polygon_normals(), EggGroupNode::remove_invalid_primitives(), EggGroupNode::remove_unused_vertices(), EggLoader::reparent_decals(), EggMaterialCollection::replace_materials(), EggTextureCollection::replace_textures(), EggGroupNode::resolve_filenames(), EggGroupNode::reverse_vertex_ordering(), NodePath::set_clip_plane(), NodePath::set_clip_plane_off(), NodePath::set_light(), ProjectionScreen::set_projector(), NonlinearImager::set_source_camera(), EggXfmSAnim::set_value(), NonlinearImager::set_viewer_camera(), PandaFramework::show_collision_solids(), BamCache::store(), XFileToEggConverter::strip_nodes(), EggGroupNode::strip_normals(), DataGraphTraverser::traverse(), DataGraphTraverser::traverse_below(), EggGroupNode::triangulate_polygons(), EggGroupNode::unify_attributes(), EggNameUniquifier::uniquify(), NodeCullCallbackData::upcall(), PhysicsCollisionHandler::validate_target(), EggXfmSAnim::write(), EggGroup::write(), EggToDXFLayer::write_3d_face(), and EggToDXFLayer::write_entities().

bool CollisionSolid::is_tangible ( ) const [inline, inherited]

Returns whether the solid is considered 'tangible' or not.

An intangible solid has no effect in a CollisionHandlerPusher (except to throw an event); it's useful for defining 'trigger' planes and spheres, that cause an effect when passed through.

Definition at line 47 of file collisionSolid.I.

References CollisionSolid::do_is_tangible().

Referenced by CollisionHandlerPhysical::add_entry(), CollisionHandlerFluidPusher::add_entry(), and CollisionHandlerEvent::throw_event_pattern().

bool CollisionPolygon::is_valid ( ) const [inherited]

Returns true if the CollisionPolygon is valid (that is, it has at least three vertices), or false otherwise.

Definition at line 135 of file collisionPolygon.cxx.

void ReferenceCount::local_object ( ) [inline, inherited]

This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack.

This allows the object to be passed to functions that will increment and decrement the object's reference count temporarily, and it will prevent the object from being deleted (inappropriately), when the reference count returns to zero. It actually achieves this by setting a large positive value in the reference count field.

Definition at line 276 of file referenceCount.I.

Referenced by PGTop::cull_callback(), BoundingSphere::extend_by_hexahedron(), AsyncTaskManager::find_task(), AsyncTaskManager::find_tasks(), and AsyncTaskManager::find_tasks_matching().

TypedWritable * CollisionPlane::make_CollisionPlane ( const FactoryParams params) [static, inherited]

Factory method to generate a CollisionPlane object.

Definition at line 510 of file collisionPlane.cxx.

References CollisionPlane::CollisionPlane(), and CollisionPlane::fillin().

Referenced by CollisionPlane::register_with_read_factory().

TypedWritable * CollisionPolygon::make_CollisionPolygon ( const FactoryParams params) [static, inherited]

Factory method to generate a CollisionPolygon object.

Definition at line 1515 of file collisionPolygon.cxx.

References CollisionPolygon::fillin().

Referenced by CollisionPolygon::register_with_read_factory().

void TypedWritable::mark_bam_modified ( ) [inline, inherited]
void CollisionSolid::mark_internal_bounds_stale ( ) [inline, protected, inherited]

Should be called by a derived class to mark the internal bounding volume stale, so that recompute_internal_bounds() will be called when the bounding volume is next requested.

Definition at line 174 of file collisionSolid.I.

Referenced by CollisionDSSolid::recalc_internals(), CollisionSegment::set_from_lens(), CollisionRay::set_from_lens(), CollisionParabola::set_parabola(), CollisionParabola::set_t1(), CollisionParabola::set_t2(), CollisionSphere::xform(), CollisionParabola::xform(), and CollisionBox::xform().

void CollisionSolid::mark_viz_stale ( ) [inline, protected, inherited]

Called internally when the visualization may have been compromised by some change to internal state and will need to be recomputed the next time it is rendered.

Definition at line 188 of file collisionSolid.I.

Referenced by CollisionDSSolid::recalc_internals(), CollisionSegment::set_from_lens(), CollisionRay::set_from_lens(), CollisionParabola::set_parabola(), CollisionParabola::set_t1(), CollisionParabola::set_t2(), CollisionSphere::xform(), CollisionParabola::xform(), and CollisionBox::xform().

void ReferenceCount::ref ( ) const [inline, inherited]

Explicitly increments the reference count.

User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.

This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

Definition at line 179 of file referenceCount.I.

References ReferenceCount::test_ref_count_integrity().

Referenced by CachedTypedWritableReferenceCount::cache_ref(), TypedWritable::decode_raw_from_bam_stream(), NodeCachedReferenceCount::node_ref(), NodeReferenceCount::node_ref(), BamCacheRecord::set_data(), CullableObject::set_draw_callback(), and ModelRoot::set_reference().

void CollisionPolygon::register_with_read_factory ( ) [static, inherited]
void CollisionSolid::report_undefined_from_intersection ( TypeHandle  from_type) [static, protected, inherited]

Outputs a message the first time an intersection test is attempted that isn't defined, and explains a bit about what it means.

Definition at line 382 of file collisionSolid.cxx.

void CollisionSolid::report_undefined_intersection_test ( TypeHandle  from_type,
TypeHandle  into_type 
) [static, protected, inherited]

Outputs a message the first time an intersection test is attempted that isn't defined, and explains a bit about what it means.

Definition at line 354 of file collisionSolid.cxx.

bool TypedWritable::require_fully_complete ( ) const [virtual, inherited]

Some objects require all of their nested pointers to have been completed before the objects themselves can be completed.

If this is the case, override this method to return true, and be careful with circular references (which would make the object unreadable from a bam file).

Reimplemented in GeomVertexData, ClipPlaneAttrib, and RenderEffects.

Definition at line 118 of file typedWritable.cxx.

void CollisionSolid::set_bounds ( const BoundingVolume bounding_volume) [inherited]

Returns the solid's bounding volume.

Definition at line 108 of file collisionSolid.cxx.

void CollisionSolid::set_effective_normal ( const LVector3f effective_normal) [inline, inherited]

Records a false normal for this CollisionSolid that will be reported by the collision system with all collisions into it, instead of its actual normal.

This is useful as a workaround for the problem of an avatar wanting to stand on a sloping ground; by storing a false normal, the ground appears to be perfectly level, and the avatar does not tend to slide down it.

Definition at line 65 of file collisionSolid.I.

void CollisionSolid::set_respect_effective_normal ( bool  respect_effective_normal) [inline, inherited]

This is only meaningful for CollisionSolids that will be added to a traverser as colliders.

It is normally true, but if set false, it means that this particular solid does not care about the "effective" normal of other solids it meets, but rather always uses the true normal.

Definition at line 120 of file collisionSolid.I.

void CollisionSolid::set_tangible ( bool  tangible) [inline, inherited]

Sets the current state of the 'tangible' flag.

Set this true to make the solid tangible, so that a CollisionHandlerPusher will not allow another object to intersect it, or false to make it intangible, so that a CollisionHandlerPusher will ignore it except to throw an event.

Definition at line 27 of file collisionSolid.I.

bool CachedTypedWritableReferenceCount::test_ref_count_integrity ( ) const [inline, inherited]
bool ReferenceCount::test_ref_count_nonzero ( ) const [inline, inherited]

Does some easy checks to make sure that the reference count isn't zero, or completely bogus.

Returns true if ok, false otherwise.

Definition at line 252 of file referenceCount.I.

References ReferenceCount::do_test_ref_count_nonzero().

Referenced by CopyOnWritePointer::test_ref_count_nonzero().

bool ReferenceCount::unref ( ) const [inline, virtual, inherited]

Explicitly decrements the reference count.

Note that the object will not be implicitly deleted by unref() simply because the reference count drops to zero. (Having a member function delete itself is problematic.) However, see the helper function unref_delete().

User code should avoid using ref() and unref() directly, which can result in missed reference counts. Instead, let a PointerTo object manage the reference counting automatically.

This function is const, even though it changes the object, because generally fiddling with an object's reference count isn't considered part of fiddling with the object. An object might be const in other ways, but we still need to accurately count the number of references to it.

The return value is true if the new reference count is nonzero, false if it is zero.

Reimplemented in GeomVertexArrayFormat, GeomVertexFormat, InternalName, RenderAttrib, RenderEffects, RenderState, and TransformState.

Definition at line 214 of file referenceCount.I.

References ReferenceCount::test_ref_count_integrity().

Referenced by CachedTypedWritableReferenceCount::cache_unref(), TypedWritable::decode_raw_from_bam_stream(), RenderEffect::finalize(), NodeCachedReferenceCount::node_unref(), NodeReferenceCount::node_unref(), TransformState::unref(), RenderState::unref(), RenderEffects::unref(), RenderAttrib::unref(), InternalName::unref(), GeomVertexFormat::unref(), and GeomVertexArrayFormat::unref().

void TypedWritable::update_bam_nested ( BamWriter manager) [virtual, inherited]

Called by the BamWriter when this object has not itself been modified recently, but it should check its nested objects for updates.

Reimplemented in CFDoCullCommand, and PandaNode.

Definition at line 77 of file typedWritable.cxx.

bool CollisionPolygon::verify_points ( const LPoint3f a,
const LPoint3f b,
const LPoint3f c 
) [inline, static, inherited]

Verifies that the indicated set of points will define a valid CollisionPolygon: that is, at least three non-collinear points, with no points repeated.

Definition at line 101 of file collisionPolygon.I.

Referenced by CollisionPolygon::verify_points().

bool CollisionPolygon::verify_points ( const LPoint3f begin,
const LPoint3f end 
) [static, inherited]

Verifies that the indicated set of points will define a valid CollisionPolygon: that is, at least three non-collinear points, with no points repeated.

This does not check that the polygon defined is convex; that check is made later, once we have projected the points to 2-d space where the decision is easier.

Definition at line 83 of file collisionPolygon.cxx.

References LVecBase3f::length().

bool CollisionPolygon::verify_points ( const LPoint3f a,
const LPoint3f b,
const LPoint3f c,
const LPoint3f d 
) [inline, static, inherited]

Verifies that the indicated set of points will define a valid CollisionPolygon: that is, at least three non-collinear points, with no points repeated.

Definition at line 118 of file collisionPolygon.I.

References CollisionPolygon::verify_points().

void ReferenceCount::weak_ref ( WeakPointerToVoid ptv) [inline, inherited]

Adds the indicated PointerToVoid as a weak reference to this object.

Definition at line 321 of file referenceCount.I.

References WeakReferenceList::add_reference(), and ReferenceCount::get_weak_list().

void ReferenceCount::weak_unref ( WeakPointerToVoid ptv) [inline, inherited]

Removes the indicated PointerToVoid as a weak reference to this object.

It must have previously been added via a call to weak_ref().

Definition at line 334 of file referenceCount.I.

References WeakReferenceList::clear_reference(), and ReferenceCount::has_weak_list().

void CollisionPolygon::write_datagram ( BamWriter manager,
Datagram me 
) [virtual, inherited]

Function to write the important information in the particular object to a Datagram.

Reimplemented from CollisionPlane.

Definition at line 1454 of file collisionPolygon.cxx.

References Datagram::add_uint16().

void CollisionPolygon::xform ( const LMatrix4f mat) [virtual, inherited]

Transforms the solid by the indicated matrix.

Reimplemented from CollisionPlane.

Definition at line 189 of file collisionPolygon.cxx.

References LVecBase3f::size().


The documentation for this class was generated from the following files:
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