Inheritance diagram for CollisionPolygon:

Public Member Functions
	CollisionPolygon (const LVecBase3 &a, const LVecBase3 &b, const LVecBase3 &c)

	CollisionPolygon (const LVecBase3 &a, const LVecBase3 &b, const LVecBase3 &c, const LVecBase3 &d)

	CollisionPolygon (const LPoint3 begin, const LPoint3 end)

	CollisionPolygon (const CollisionPolygon &copy)

virtual TypeHandle	force_init_type ()

virtual LPoint3	get_collision_origin () const
	Returns the point in space deemed to be the "origin" of the solid for collision purposes. More...

size_t	get_num_points () const

LPoint3	get_point (size_t n) const

virtual PStatCollector &	get_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. More...

virtual TypeHandle	get_type () const

virtual PStatCollector &	get_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. More...

bool	is_concave () const

bool	is_valid () const

virtual CollisionSolid *	make_copy ()

virtual void	output (std::ostream &out) const

virtual	PT (PandaNode) get_viz(const CullTraverser *trav

virtual void	write (std::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. More...

virtual void	xform (const LMatrix4 &mat)
	Transforms the solid by the indicated matrix. More...

Public Member Functions inherited from CollisionPlane
	CollisionPlane (const LPlane &plane)

	CollisionPlane (const CollisionPlane &copy)

PN_stdfloat	dist_to_plane (const LPoint3 &point) const

void	flip ()
	Convenience method to flip the plane in-place. More...

LVector3	get_normal () const

const LPlane &	get_plane () const

void	set_plane (const LPlane &plane)

Public Member Functions inherited from CollisionSolid
	CollisionSolid (const CollisionSolid &copy)

void	clear_effective_normal ()
	Removes the normal previously set by set_effective_normal(). More...

	CPT (BoundingVolume) get_bounds() const

const LVector3 &	get_effective_normal () const
	Returns the normal that was set by set_effective_normal(). More...

bool	get_respect_effective_normal () const

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

bool	is_tangible () const

void	set_bounds (const BoundingVolume &bounding_volume)

void	set_effective_normal (const LVector3 &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. More...

void	set_respect_effective_normal (bool respect_effective_normal)

void	set_tangible (bool tangible)

Public Member Functions inherited from CopyOnWriteObject
	CopyOnWriteObject (const CopyOnWriteObject &copy)

void	operator= (const CopyOnWriteObject &copy)

Public Member Functions inherited from CachedTypedWritableReferenceCount
void	cache_ref () const
	Explicitly increments the cache reference count and the normal reference count simultaneously. More...

void	cache_ref_only () const
	Decrements the cache reference count without affecting the normal reference count. More...

bool	cache_unref () const
	Explicitly decrements the cache reference count and the normal reference count simultaneously. More...

int	get_cache_ref_count () const

bool	test_ref_count_integrity () const
	Does some easy checks to make sure that the reference count isn't completely bogus. More...

Public Member Functions inherited from TypedWritableReferenceCount
	TypedWritableReferenceCount (const TypedWritableReferenceCount &copy)

virtual ReferenceCount *	as_reference_count ()
	Returns the pointer cast to a ReferenceCount pointer, if it is in fact of that type. More...

void	operator= (const TypedWritableReferenceCount &copy)

Public Member Functions inherited from TypedWritable
	TypedWritable (const TypedWritable &copy)

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(). More...

vector_uchar	encode_to_bam_stream () const
	Converts the TypedWritable object into a single stream of data using a BamWriter, and returns that data as a bytes object. More...

bool	encode_to_bam_stream (vector_uchar &data, BamWriter *writer=nullptr) const
	Converts the TypedWritable object into a single stream of data using a BamWriter, and stores that data in the indicated string. More...

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. More...

UpdateSeq	get_bam_modified () const
	Returns the current bam_modified counter. More...

void	mark_bam_modified ()
	Increments the bam_modified counter, so that this object will be invalidated and retransmitted on any open bam streams. More...

void	operator= (const TypedWritable &copy)

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. More...

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. More...

Public Member Functions inherited from TypedObject
	TypedObject (const TypedObject &copy)=default

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

const TypedObject *	as_typed_object () const
	Returns the object, upcast (if necessary) to a TypedObject pointer. More...

int	get_best_parent_from_Set (const std::set< int > &) const

int	get_type_index () const
	Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More...

bool	is_exact_type (TypeHandle handle) const
	Returns true if the current object is the indicated type exactly. More...

bool	is_of_type (TypeHandle handle) const
	Returns true if the current object is or derives from the indicated type. More...

TypedObject &	operator= (const TypedObject &copy)=default

Public Member Functions inherited from ReferenceCount
int	get_ref_count () const

WeakReferenceList *	get_weak_list () const
	Returns the WeakReferenceList associated with this ReferenceCount object. More...

bool	has_weak_list () const
	Returns true if this particular ReferenceCount object has a WeakReferenceList created, false otherwise. More...

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

void	ref () const
	Explicitly increments the reference count. More...

bool	ref_if_nonzero () const
	Atomically increases the reference count of this object if it is not zero. More...

bool	test_ref_count_integrity () const
	Does some easy checks to make sure that the reference count isn't completely bogus. More...

bool	test_ref_count_nonzero () const
	Does some easy checks to make sure that the reference count isn't zero, or completely bogus. More...

virtual bool	unref () const
	Explicitly decrements the reference count. More...

WeakReferenceList *	weak_ref ()
	Adds the indicated PointerToVoid as a weak reference to this object. More...

void	weak_unref ()
	Removes the indicated PointerToVoid as a weak reference to this object. More...

Static Public Member Functions
static void	flush_level ()
	Flushes the PStatCollectors used during traversal. More...

static TypeHandle	get_class_type ()

static void	init_type ()

static TypedWritable *	make_CollisionPolygon (const FactoryParams &params)
	Factory method to generate a CollisionPolygon object. More...

static void	register_with_read_factory ()
	Factory method to generate a CollisionPolygon object. More...

static bool	verify_points (const LPoint3 &a, const LPoint3 &b, const LPoint3 &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. More...

static bool	verify_points (const LPoint3 &a, const LPoint3 &b, const LPoint3 &c, const LPoint3 &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. More...

static bool	verify_points (const LPoint3 begin, const LPoint3 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. More...

Static Public Member Functions inherited from CollisionPlane
static void	flush_level ()
	Flushes the PStatCollectors used during traversal. More...

static TypeHandle	get_class_type ()

static void	init_type ()

static TypedWritable *	make_CollisionPlane (const FactoryParams &params)
	Factory method to generate a CollisionPlane object. More...

static void	register_with_read_factory ()
	Factory method to generate a CollisionPlane object. More...

Static Public Member Functions inherited from CollisionSolid
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from CopyOnWriteObject
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from CachedTypedWritableReferenceCount
static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from TypedWritableReferenceCount
static TypeHandle	get_class_type ()

static void	init_type ()

static	PT (TypedWritableReferenceCount) decode_from_bam_stream(vector_uchar data

Static Public Member Functions inherited from TypedWritable
static bool	decode_raw_from_bam_stream (TypedWritable &ptr, ReferenceCount &ref_ptr, vector_uchar data, BamReader *reader=nullptr)
	Reads the bytes created by a previous call to encode_to_bam_stream(), and extracts the single object on those bytes. More...

static TypeHandle	get_class_type ()

static void	init_type ()

Static Public Member Functions inherited from TypedObject
static TypeHandle	get_class_type ()

static void	init_type ()
	This function is declared non-inline to work around a compiler bug in g++ 2.96. More...

Static Public Member Functions inherited from ReferenceCount
static TypeHandle	get_class_type ()

static void	init_type ()

Public Attributes
virtual const CullTraverserData bool bounds_only	const

virtual const CullTraverserData &	data

	get_num_points
	Returns the number of vertices of the CollisionPolygon. More...

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

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

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

Public Attributes inherited from CollisionPlane
	get_normal

	get_plane

	set_plane

Public Attributes inherited from CollisionSolid
virtual const CullTraverserData bool bounds_only	const

virtual const CullTraverserData &	data

	get_bounds

	get_collision_origin

	get_respect_effective_normal
	See set_respect_effective_normal(). More...

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

	set_bounds

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

	set_tangible
	Sets the current state of the 'tangible' flag. More...

Public Attributes inherited from CachedTypedWritableReferenceCount
	get_cache_ref_count
	Returns the current reference count. More...

Public Attributes inherited from TypedWritableReferenceCount
static BamReader *	reader = nullptr)

Public Attributes inherited from TypedObject
	get_type

Public Attributes inherited from ReferenceCount
	get_ref_count
	Returns the current reference count. More...

Additional Inherited Members
Static Public Attributes inherited from TypedWritable
static TypedWritable *const	Null = nullptr

Detailed Description

Definition at line 29 of file collisionPolygon.h.

Member Function Documentation

◆ flush_level()

void CollisionPolygon::flush_level ( )

inlinestatic

Flushes the PStatCollectors used during traversal.

Definition at line 111 of file collisionPolygon.I.

◆ get_collision_origin()

LPoint3 CollisionPolygon::get_collision_origin ( ) const

virtual

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 219 of file collisionPolygon.cxx.

◆ get_test_pcollector()

PStatCollector & CollisionPolygon::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 CollisionPlane.

Reimplemented in CollisionGeom.

Definition at line 294 of file collisionPolygon.cxx.

◆ get_volume_pcollector()

virtual PStatCollector& CollisionPolygon::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 CollisionPlane.

Reimplemented in CollisionGeom.

◆ make_CollisionPolygon()

TypedWritable * CollisionPolygon::make_CollisionPolygon ( const FactoryParams & params )

static

Factory method to generate a CollisionPolygon object.

Definition at line 1562 of file collisionPolygon.cxx.

References parse_params().

Referenced by register_with_read_factory().

◆ register_with_read_factory()

void CollisionPolygon::register_with_read_factory ( )

static

Factory method to generate a CollisionPolygon object.

Definition at line 1576 of file collisionPolygon.cxx.

References BamReader::get_factory(), make_CollisionPolygon(), and Factory< Type >::register_factory().

Referenced by init_libcollide().

◆ verify_points() [1/3]

bool CollisionPolygon::verify_points	(	const LPoint3 &	a,
		const LPoint3 &	b,
		const LPoint3 &	c
	)

inlinestatic

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 82 of file collisionPolygon.I.

Referenced by verify_points().

◆ verify_points() [2/3]

bool CollisionPolygon::verify_points	(	const LPoint3 &	a,
		const LPoint3 &	b,
		const LPoint3 &	c,
		const LPoint3 &	d
	)

inlinestatic

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 97 of file collisionPolygon.I.

References verify_points().

◆ verify_points() [3/3]

bool CollisionPolygon::verify_points	(	const LPoint3 *	begin,
		const LPoint3 *	end
	)

static

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 80 of file collisionPolygon.cxx.

◆ write_datagram()

void CollisionPolygon::write_datagram	(	BamWriter *	manager,
		Datagram &	me
	)

virtual

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

Reimplemented from CollisionPlane.

Definition at line 1506 of file collisionPolygon.cxx.

References Datagram::add_uint16(), and CollisionPlane::write_datagram().

◆ xform()

void CollisionPolygon::xform ( const LMatrix4 & mat )

virtual

Transforms the solid by the indicated matrix.

Reimplemented from CollisionPlane.

Definition at line 179 of file collisionPolygon.cxx.

Member Data Documentation

◆ get_num_points

size_t CollisionPolygon::get_num_points

inline

Returns the number of vertices of the CollisionPolygon.

Definition at line 50 of file collisionPolygon.h.

◆ get_point

LPoint3 CollisionPolygon::get_point

inline

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

Definition at line 50 of file collisionPolygon.h.

◆ is_concave

bool CollisionPolygon::is_concave

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

Definition at line 65 of file collisionPolygon.h.

◆ is_valid

bool CollisionPolygon::is_valid

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

Definition at line 64 of file collisionPolygon.h.

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

panda/src/collide/collisionPolygon.h
panda/src/collide/collisionPolygon.cxx
panda/src/collide/collisionPolygon.I

Public Member Functions

Static Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ flush_level()

◆ get_collision_origin()

◆ get_test_pcollector()

◆ get_volume_pcollector()

◆ make_CollisionPolygon()

◆ register_with_read_factory()

◆ verify_points() [1/3]

◆ verify_points() [2/3]

◆ verify_points() [3/3]

◆ write_datagram()

◆ xform()

Member Data Documentation

◆ get_num_points

◆ get_point

◆ is_concave

◆ is_valid