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CollisionEntry Class Reference

Defines a single collision event. More...

#include "collisionEntry.h"

Inheritance diagram for CollisionEntry:
TypedWritableReferenceCount TypedWritable ReferenceCount TypedObject MemoryBase MemoryBase

List of all members.

Public Member Functions

 CollisionEntry (const CollisionEntry &copy)
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.
bool collided () const
 returns true if this represents an actual collision as opposed to a potential collision, needed for iterative collision resolution where path of collider changes mid-frame
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 (TransformState) get_wrt_space() const
 CPT (TransformState) get_inv_wrt_space() const
 CPT (TransformState) get_wrt_prev_space() 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 fillin (DatagramIterator &scan, BamReader *manager)
 This internal function is intended to be called by each class's make_from_bam() method to read in all of the relevant data from the BamFile for the new object.
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 ()
bool get_all (const NodePath &space, LPoint3f &surface_point, LVector3f &surface_normal, LPoint3f &interior_point) const
 Simultaneously transforms the surface point, surface normal, and interior point of the collision into the indicated coordinate space.
bool get_all_contact_info (const NodePath &space, LPoint3f &contact_pos, LVector3f &contact_normal) const
 Simultaneously transforms the contact position and contact normal of the collision into the indicated coordinate space.
UpdateSeq get_bam_modified () const
 Returns the current bam_modified counter.
int get_best_parent_from_Set (const std::set< int > &) const
LVector3f get_contact_normal (const NodePath &space) const
 Returns the surface normal of the "into" object at the contact position.
LPoint3f get_contact_pos (const NodePath &space) const
 Returns the position of the "from" object at the instant that a collision is first detected.
const CollisionSolidget_from () const
 Returns the CollisionSolid pointer for the particular solid that triggered this collision.
CollisionNodeget_from_node () const
 Returns the node that contains the CollisionSolid that triggered this collision.
NodePath get_from_node_path () const
 Returns the NodePath that represents the CollisionNode that contains the CollisionSolid that triggered this collision.
LPoint3f get_interior_point (const NodePath &space) const
 Returns the point, within the interior of the "into" object, which represents the depth to which the "from" object has penetrated.
const CollisionSolidget_into () const
 Returns the CollisionSolid pointer for the particular solid was collided into.
const ClipPlaneAttribget_into_clip_planes () const
 Returns the ClipPlaneAttrib, if any, that is applied to the into_node_path, or NULL if there is no clip plane in effect.
PandaNodeget_into_node () const
 Returns the node that contains the CollisionSolid that was collided into.
NodePath get_into_node_path () const
 Returns the NodePath that represents the specific CollisionNode or GeomNode instance that was collided into.
const LMatrix4fget_inv_wrt_mat () const
 Returns the relative transform of the into node as seen from the from node.
int get_ref_count () const
 Returns the current reference count.
bool get_respect_prev_transform () const
 Returns true if the collision was detected by a CollisionTraverser whose respect_prev_transform flag was set true, meaning we should consider motion significant in evaluating collisions.
LVector3f get_surface_normal (const NodePath &space) const
 Returns the surface normal of the "into" object at the point at which a collision is detected.
LPoint3f get_surface_point (const NodePath &space) const
 Returns the point, on the surface of the "into" object, at which a collision is detected.
float get_t () const
 returns time value for this collision relative to other CollisionEntries
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.
WeakReferenceListget_weak_list () const
 Returns the WeakReferenceList associated with this ReferenceCount object.
const LMatrix4fget_wrt_mat () const
 Returns the relative transform of the from node as seen from the into node.
const LMatrix4fget_wrt_prev_mat () const
 Returns the relative transform of the from node as seen from the into node, as of the previous frame (according to set_prev_transform(), set_fluid_pos(), etc.)
bool has_contact_normal () const
 Returns true if the contact normal has been specified, false otherwise.
bool has_contact_pos () const
 Returns true if the contact position has been specified, false otherwise.
bool has_interior_point () const
 Returns true if the interior point has been specified, false otherwise.
bool has_into () const
 Returns true if the "into" solid is, in fact, a CollisionSolid, and its pointer is known (in which case get_into() may be called to retrieve it).
bool has_surface_normal () const
 Returns true if the surface normal has been specified, false otherwise.
bool has_surface_point () const
 Returns true if the surface point has been specified, false otherwise.
bool has_weak_list () const
 Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise.
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.
void local_object ()
 This function should be called, once, immediately after creating a new instance of some ReferenceCount-derived object on the stack.
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 *)
void operator delete (void *ptr)
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 * operator new[] (size_t size, void *ptr)
void * operator new[] (size_t size)
void operator= (const CollisionEntry &copy)
void output (ostream &out) const
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 reset_collided ()
 prepare for another collision test
void set_contact_normal (const LVector3f &normal)
 Stores the surface normal of the "into" object at the contact pos.
void set_contact_pos (const LPoint3f &pos)
 Stores the position of the "from" object at the instant at which the collision is first detected.
void set_interior_point (const LPoint3f &point)
 Stores the point, within the interior of the "into" object, which represents the depth to which the "from" object has penetrated.
void set_surface_normal (const LVector3f &normal)
 Stores the surface normal of the "into" object at the point of the intersection.
void set_surface_point (const LPoint3f &point)
 Stores the point, on the surface of the "into" object, at which a collision is detected.
void set_t (float t)
 Sets a time value for this collision relative to other CollisionEntries.
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.
void write (ostream &out, int indent_level=0) const
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 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 TypeHandle get_class_type ()
static void init_type ()
static PT (TypedWritableReferenceCount) decode_from_bam_stream(const string &data

Public Attributes

static BamReaderreader = NULL)

Static Public Attributes

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

Protected Member Functions

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.

Friends

class CollisionHandlerFluidPusher
class CollisionTraverser

Detailed Description

Defines a single collision event.

One of these is created for each collision detected by a CollisionTraverser, to be dealt with by the CollisionHandler.

A CollisionEntry provides slots for a number of data values (such as intersection point and normal) that might or might not be known for each collision. It is up to the handler to determine what information is known and to do the right thing with it.

Definition at line 46 of file collisionEntry.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.

bool CollisionEntry::collided ( ) const [inline]

returns true if this represents an actual collision as opposed to a potential collision, needed for iterative collision resolution where path of collider changes mid-frame

Definition at line 157 of file collisionEntry.I.

Referenced by CollisionHandlerFluidPusher::add_entry(), and CollisionHandlerFluidPusher::handle_entries().

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 ReferenceCount::do_test_ref_count_integrity ( ) const [protected, inherited]

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

Returns true if ok, false otherwise.

Reimplemented in NodeReferenceCount, CachedTypedWritableReferenceCount, and NodeCachedReferenceCount.

Definition at line 29 of file referenceCount.cxx.

Referenced by ReferenceCount::do_test_ref_count_nonzero(), and ReferenceCount::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 TypedWritable::fillin ( DatagramIterator scan,
BamReader manager 
) [virtual, inherited]

This internal function is intended to be called by each class's make_from_bam() method to read in all of the relevant data from the BamFile for the new object.

It is also called directly by the BamReader to re-read the data for an object that has been placed on the stream for an update.

Reimplemented in CFDoCullCommand, AnimBundle, AnimBundleNode, AnimChannelBase, AnimChannelMatrixDynamic, AnimChannelMatrixFixed, AnimChannelMatrixXfmTable, AnimChannelScalarDynamic, AnimChannelScalarTable, AnimGroup, AnimPreloadTable, MovingPart< SwitchType >, MovingPartBase, PartBundle, PartBundleNode, PartGroup, Character, CharacterJoint, CharacterJointEffect, CharacterVertexSlider, JointVertexTransform, CollisionBox, CollisionDSSolid, CollisionFloorMesh, CollisionInvSphere, CollisionLine, CollisionNode, CollisionParabola, CollisionPlane, CollisionPolygon, CollisionRay, CollisionSegment, CollisionSolid, CollisionSphere, CollisionTube, DataNode, DataNodeTransmit, ButtonEventList, EventStoreValue< Type >, Geom, GeomPrimitive, GeomVertexArrayData, GeomVertexArrayFormat, GeomVertexData, GeomVertexFormat, Lens, Material, SliderTable, TextureStage, TransformBlendTable, TransformTable, UserVertexSlider, UserVertexTransform, VertexSlider, VertexTransform, CubicCurveseg, HermiteCurve, NurbsCurve, ParametricCurve, PiecewiseCurve, RopeNode, SheetNode, AlphaTestAttrib, AntialiasAttrib, AudioVolumeAttrib, AuxBitplaneAttrib, BillboardEffect, Camera, ClipPlaneAttrib, ColorAttrib, ColorBlendAttrib, ColorScaleAttrib, ColorWriteAttrib, CompassEffect, CullBinAttrib, CullFaceAttrib, DecalEffect, DepthOffsetAttrib, DepthTestAttrib, DepthWriteAttrib, Fog, FogAttrib, GeomNode, LensNode, LightAttrib, LightRampAttrib, MaterialAttrib, ModelNode, ModelRoot, PandaNode, PlaneNode, PolylightNode, PortalNode, RenderAttrib, RenderEffect, RenderEffects, RenderModeAttrib, RenderState, RescaleNormalAttrib, ScissorAttrib, ScissorEffect, ShadeModelAttrib, ShowBoundsEffect, StencilAttrib, TexGenAttrib, TexMatrixAttrib, TexProjectorEffect, TextureAttrib, TransformState, TransparencyAttrib, UvScrollNode, AmbientLight, CallbackNode, DirectionalLight, FadeLODNode, LightLensNode, LightNode, LODNode, PointLight, SequenceNode, Spotlight, SwitchNode, BamCacheIndex, BamCacheRecord, MouseRecorder, RecorderFrame, RecorderHeader, RecorderTable, DestTextureImage, EggFile, ImageFile, PaletteGroup, PaletteGroups, PaletteImage, PalettePage, Palettizer, SourceTextureImage, TextureImage, TexturePlacement, TexturePosition, TextureProperties, TextureReference, MovingPart< ACScalarSwitchType >, and MovingPart< ACMatrixSwitchType >.

Definition at line 133 of file typedWritable.cxx.

Referenced by EventStoreValue< Type >::fillin().

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().

bool CollisionEntry::get_all ( const NodePath space,
LPoint3f surface_point,
LVector3f surface_normal,
LPoint3f interior_point 
) const

Simultaneously transforms the surface point, surface normal, and interior point of the collision into the indicated coordinate space.

Returns true if all three properties are available, or false if any one of them is not.

Definition at line 137 of file collisionEntry.cxx.

References NodePath::get_transform(), has_interior_point(), has_surface_normal(), has_surface_point(), LVector3f::zero(), and LPoint3f::zero().

Referenced by CollisionHandlerPusher::handle_entries().

bool CollisionEntry::get_all_contact_info ( const NodePath space,
LPoint3f contact_pos,
LVector3f contact_normal 
) const

Simultaneously transforms the contact position and contact normal of the collision into the indicated coordinate space.

Returns true if all three properties are available, or false if any one of them is not.

Definition at line 210 of file collisionEntry.cxx.

References NodePath::get_transform(), has_contact_normal(), has_contact_pos(), LVector3f::zero(), and LPoint3f::zero().

Referenced by CollisionHandlerFluidPusher::handle_entries().

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().

LVector3f CollisionEntry::get_contact_normal ( const NodePath space) const

Returns the surface normal of the "into" object at the contact position.

The normal will be converted into whichever coordinate space the caller specifies.

Definition at line 193 of file collisionEntry.cxx.

References NodePath::get_transform(), has_contact_normal(), and LVector3f::zero().

LPoint3f CollisionEntry::get_contact_pos ( const NodePath space) const

Returns the position of the "from" object at the instant that a collision is first detected.

The position will be converted into whichever coordinate space the caller specifies.

Definition at line 177 of file collisionEntry.cxx.

References NodePath::get_transform(), has_contact_pos(), and LPoint3f::zero().

const CollisionSolid * CollisionEntry::get_from ( ) const [inline]
CollisionNode * CollisionEntry::get_from_node ( ) const [inline]

Returns the node that contains the CollisionSolid that triggered this collision.

This will be a node that has been added to a CollisionTraverser via add_collider().

Definition at line 77 of file collisionEntry.I.

Referenced by CollisionHandlerEvent::throw_event_pattern().

NodePath CollisionEntry::get_from_node_path ( ) const [inline]
LPoint3f CollisionEntry::get_interior_point ( const NodePath space) const

Returns the point, within the interior of the "into" object, which represents the depth to which the "from" object has penetrated.

This can also be described as the intersection point on the surface of the "from" object (which is inside the "into" object). It can be thought of as the deepest point of intersection.

The point will be converted into whichever coordinate space the caller specifies.

Definition at line 118 of file collisionEntry.cxx.

References get_surface_point(), NodePath::get_transform(), and has_interior_point().

const CollisionSolid * CollisionEntry::get_into ( ) const [inline]

Returns the CollisionSolid pointer for the particular solid was collided into.

This pointer might be NULL if the collision was into a piece of visible geometry, instead of a normal CollisionSolid collision; see has_into().

Definition at line 64 of file collisionEntry.I.

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

const ClipPlaneAttrib * CollisionEntry::get_into_clip_planes ( ) const [inline]

Returns the ClipPlaneAttrib, if any, that is applied to the into_node_path, or NULL if there is no clip plane in effect.

Definition at line 411 of file collisionEntry.I.

PandaNode * CollisionEntry::get_into_node ( ) const [inline]

Returns the node that contains the CollisionSolid that was collided into.

This returns a PandaNode pointer instead of something more specific, because it might be either a CollisionNode or a GeomNode.

Also see get_into_node_path().

Definition at line 92 of file collisionEntry.I.

Referenced by CollisionHandlerEvent::throw_event_pattern().

NodePath CollisionEntry::get_into_node_path ( ) const [inline]

Returns the NodePath that represents the specific CollisionNode or GeomNode instance that was collided into.

This is the same node returned by get_into_node(), represented as a NodePath; however, it may be more useful because the NodePath can resolve the particular instance of the node, if there is more than one.

Definition at line 122 of file collisionEntry.I.

Referenced by CollisionHandlerEvent::add_entry(), CollisionHandlerFluidPusher::handle_entries(), CollisionHandlerPusher::handle_entries(), CollisionHandlerEvent::SortEntries::operator()(), and CollisionHandlerEvent::throw_event_pattern().

const LMatrix4f & CollisionEntry::get_inv_wrt_mat ( ) const [inline]

Returns the relative transform of the into node as seen from the from node.

Definition at line 386 of file collisionEntry.I.

int ReferenceCount::get_ref_count ( ) const [inline, inherited]
bool CollisionEntry::get_respect_prev_transform ( ) const [inline]

Returns true if the collision was detected by a CollisionTraverser whose respect_prev_transform flag was set true, meaning we should consider motion significant in evaluating collisions.

Definition at line 180 of file collisionEntry.I.

LVector3f CollisionEntry::get_surface_normal ( const NodePath space) const

Returns the surface normal of the "into" object at the point at which a collision is detected.

The normal will be converted into whichever coordinate space the caller specifies.

Definition at line 97 of file collisionEntry.cxx.

References NodePath::get_transform(), has_surface_normal(), and LVector3f::zero().

Referenced by CollisionHandlerPhysical::add_entry().

LPoint3f CollisionEntry::get_surface_point ( const NodePath space) const

Returns the point, on the surface of the "into" object, at which a collision is detected.

This can be thought of as the first point of intersection. However the contact point is the actual first point of intersection.

The point will be converted into whichever coordinate space the caller specifies.

Definition at line 81 of file collisionEntry.cxx.

References NodePath::get_transform(), has_surface_point(), and LPoint3f::zero().

Referenced by CollisionHandlerHighestEvent::add_entry(), CollisionHandlerPhysical::add_entry(), get_interior_point(), and CollisionHandlerFloor::handle_entries().

float CollisionEntry::get_t ( ) const [inline]

returns time value for this collision relative to other CollisionEntries

Definition at line 144 of file collisionEntry.I.

Referenced by CollisionHandlerFluidPusher::handle_entries().

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().

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().

const LMatrix4f & CollisionEntry::get_wrt_mat ( ) const [inline]

Returns the relative transform of the from node as seen from the into node.

Definition at line 375 of file collisionEntry.I.

const LMatrix4f & CollisionEntry::get_wrt_prev_mat ( ) const [inline]

Returns the relative transform of the from node as seen from the into node, as of the previous frame (according to set_prev_transform(), set_fluid_pos(), etc.)

Definition at line 399 of file collisionEntry.I.

bool CollisionEntry::has_contact_normal ( ) const [inline]

Returns true if the contact normal has been specified, false otherwise.

See get_contact_normal(). Some types of collisions may not compute the contact normal.

Definition at line 325 of file collisionEntry.I.

Referenced by get_all_contact_info(), and get_contact_normal().

bool CollisionEntry::has_contact_pos ( ) const [inline]

Returns true if the contact position has been specified, false otherwise.

See get_contact_pos(). Some types of collisions may not compute the contact pos.

Definition at line 312 of file collisionEntry.I.

Referenced by get_all_contact_info(), and get_contact_pos().

bool CollisionEntry::has_interior_point ( ) const [inline]

Returns true if the interior point has been specified, false otherwise.

See get_interior_point(). Some types of collisions may not compute the interior point.

Definition at line 269 of file collisionEntry.I.

Referenced by get_all(), and get_interior_point().

bool CollisionEntry::has_into ( ) const [inline]

Returns true if the "into" solid is, in fact, a CollisionSolid, and its pointer is known (in which case get_into() may be called to retrieve it).

If this returns false, the collision was detected into a GeomNode, and there is no CollisionSolid pointer to be retrieved.

Definition at line 50 of file collisionEntry.I.

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

bool CollisionEntry::has_surface_normal ( ) const [inline]

Returns true if the surface normal has been specified, false otherwise.

See get_surface_normal(). Some types of collisions may not compute the surface normal.

Definition at line 256 of file collisionEntry.I.

Referenced by CollisionHandlerPhysical::add_entry(), get_all(), and get_surface_normal().

bool CollisionEntry::has_surface_point ( ) const [inline]

Returns true if the surface point has been specified, false otherwise.

See get_surface_point(). Some types of collisions may not compute the surface point.

Definition at line 243 of file collisionEntry.I.

Referenced by CollisionHandlerPhysical::add_entry(), get_all(), get_surface_point(), and CollisionHandlerFloor::handle_entries().

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 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().

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().

void TypedWritable::mark_bam_modified ( ) [inline, inherited]
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().

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 CollisionEntry::reset_collided ( ) [inline]

prepare for another collision test

Definition at line 167 of file collisionEntry.I.

Referenced by CollisionHandlerFluidPusher::handle_entries().

void CollisionEntry::set_contact_normal ( const LVector3f normal) [inline]

Stores the surface normal of the "into" object at the contact pos.

This normal is specified in the coordinate space of the "into" object.

Definition at line 298 of file collisionEntry.I.

void CollisionEntry::set_contact_pos ( const LPoint3f pos) [inline]

Stores the position of the "from" object at the instant at which the collision is first detected.

This position is specified in the coordinate space of the "into" object.

Definition at line 283 of file collisionEntry.I.

void CollisionEntry::set_interior_point ( const LPoint3f point) [inline]

Stores the point, within the interior of the "into" object, which represents the depth to which the "from" object has penetrated.

This can also be described as the intersection point on the surface of the "from" object (which is inside the "into" object).

This point is specified in the coordinate space of the "into" object.

Definition at line 229 of file collisionEntry.I.

void CollisionEntry::set_surface_normal ( const LVector3f normal) [inline]

Stores the surface normal of the "into" object at the point of the intersection.

This normal is specified in the coordinate space of the "into" object.

Definition at line 210 of file collisionEntry.I.

void CollisionEntry::set_surface_point ( const LPoint3f point) [inline]

Stores the point, on the surface of the "into" object, at which a collision is detected.

This point is specified in the coordinate space of the "into" object.

Definition at line 195 of file collisionEntry.I.

void CollisionEntry::set_t ( float  t) [inline]

Sets a time value for this collision relative to other CollisionEntries.

Definition at line 133 of file collisionEntry.I.

bool ReferenceCount::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.

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 TypedWritable::write_datagram ( BamWriter manager,
Datagram dg 
) [virtual, inherited]

Writes the contents of this object to the datagram for shipping out to a Bam file.

Reimplemented in CFDoCullCommand, AnimBundle, AnimBundleNode, AnimChannelBase, AnimChannelMatrixDynamic, AnimChannelMatrixFixed, AnimChannelMatrixXfmTable, AnimChannelScalarDynamic, AnimChannelScalarTable, AnimGroup, AnimPreloadTable, MovingPart< SwitchType >, MovingPartBase, PartBundle, PartBundleNode, PartGroup, Character, CharacterJoint, CharacterJointEffect, CharacterVertexSlider, JointVertexTransform, CollisionBox, CollisionDSSolid, CollisionFloorMesh, CollisionInvSphere, CollisionLine, CollisionNode, CollisionParabola, CollisionPlane, CollisionPolygon, CollisionRay, CollisionSegment, CollisionSolid, CollisionSphere, CollisionTube, DataNode, DataNodeTransmit, ButtonEventList, EventStoreValue< Type >, Geom, GeomPrimitive, GeomVertexArrayData, GeomVertexArrayFormat, GeomVertexData, GeomVertexFormat, InternalName, Lens, Material, SliderTable, Texture, TextureStage, TransformBlendTable, TransformTable, UserVertexSlider, UserVertexTransform, VertexSlider, VertexTransform, CubicCurveseg, HermiteCurve, NurbsCurve, ParametricCurve, PiecewiseCurve, RopeNode, SheetNode, AlphaTestAttrib, AntialiasAttrib, AudioVolumeAttrib, AuxBitplaneAttrib, BillboardEffect, Camera, ClipPlaneAttrib, ColorAttrib, ColorBlendAttrib, ColorScaleAttrib, ColorWriteAttrib, CompassEffect, CullBinAttrib, CullFaceAttrib, DecalEffect, DepthOffsetAttrib, DepthTestAttrib, DepthWriteAttrib, Fog, FogAttrib, GeomNode, LensNode, LightAttrib, LightRampAttrib, MaterialAttrib, ModelNode, ModelRoot, PandaNode, PlaneNode, PolylightNode, PortalNode, RenderAttrib, RenderEffect, RenderEffects, RenderModeAttrib, RenderState, RescaleNormalAttrib, ScissorAttrib, ScissorEffect, ShadeModelAttrib, ShowBoundsEffect, StencilAttrib, TexGenAttrib, TexMatrixAttrib, TexProjectorEffect, TextureAttrib, TransformState, TransparencyAttrib, UvScrollNode, AmbientLight, CallbackNode, DirectionalLight, FadeLODNode, LightLensNode, LightNode, LODNode, PointLight, SequenceNode, Spotlight, SwitchNode, PNMFileType, BamCacheIndex, BamCacheRecord, WritableConfigurable, MouseRecorder, RecorderFrame, RecorderHeader, RecorderTable, DestTextureImage, EggFile, ImageFile, PaletteGroup, PaletteGroups, PaletteImage, PalettePage, Palettizer, SourceTextureImage, TextureImage, TexturePlacement, TexturePosition, TextureProperties, TextureReference, MovingPart< ACScalarSwitchType >, and MovingPart< ACMatrixSwitchType >.

Definition at line 66 of file typedWritable.cxx.

Referenced by GeomPrimitive::write_datagram(), and EventStoreValue< Type >::write_datagram().


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