Panda3D
Public Member Functions | Static Public Member Functions | List of all members
CollisionParabola Class Reference

This defines a parabolic arc, or subset of an arc, similar to the path of a projectile or falling object. More...

#include "collisionParabola.h"

Inheritance diagram for CollisionParabola:
CollisionSolid CopyOnWriteObject CachedTypedWritableReferenceCount TypedWritableReferenceCount TypedWritable ReferenceCount TypedObject MemoryBase MemoryBase

Public Member Functions

 CollisionParabola ()
 Creates an invalid parabola. More...
 
 CollisionParabola (const LParabola &parabola, PN_stdfloat t1, PN_stdfloat t2)
 Creates a parabola with the endpoints between t1 and t2 in the parametric space of the parabola. More...
 
 CollisionParabola (const CollisionParabola &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...
 
const LParabola & get_parabola () const
 Returns the parabola specified by this solid. More...
 
PN_stdfloat get_t1 () const
 Returns the starting point on the parabola. More...
 
PN_stdfloat get_t2 () const
 Returns the ending point on the parabola. More...
 
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. More...
 
virtual TypeHandle get_type () const
 
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. More...
 
virtual CollisionSolidmake_copy ()
 
virtual void output (ostream &out) const
 
virtual PT (CollisionEntry) test_intersection(const CollisionEntry &entry) const
 
void set_parabola (const LParabola &parabola)
 Replaces the parabola specified by this solid. More...
 
void set_t1 (PN_stdfloat t1)
 Changes the starting point on the parabola. More...
 
void set_t2 (PN_stdfloat t2)
 Changes the ending point on the parabola. More...
 
virtual void write_datagram (BamWriter *manager, Datagram &dg)
 Function to write the important information in the particular object to a Datagram. More...
 
virtual void xform (const LMatrix4 &mat)
 
- 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 LVector3get_effective_normal () const
 Returns the normal that was set by set_effective_normal(). More...
 
bool get_respect_effective_normal () const
 See set_respect_effective_normal(). More...
 
bool has_effective_normal () const
 Returns true if a special normal was set by set_effective_normal(), false otherwise. More...
 
bool is_tangible () const
 Returns whether the solid is considered 'tangible' or not. More...
 
virtual PT (PandaNode) get_viz(const CullTraverser *trav
 
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)
 This is only meaningful for CollisionSolids that will be added to a traverser as colliders. More...
 
void set_tangible (bool tangible)
 Sets the current state of the 'tangible' flag. More...
 
virtual void write (ostream &out, int indent_level=0) const
 
- 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...
 
bool cache_unref () const
 Explicitly decrements the cache reference count and the normal reference count simultaneously. More...
 
int get_cache_ref_count () const
 Returns the current reference count. More...
 
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 ReferenceCountas_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...
 
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. More...
 
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. 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)
 
TypedObjectas_typed_object ()
 Returns the object, upcast (if necessary) to a TypedObject pointer. More...
 
const TypedObjectas_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...
 
void operator= (const TypedObject &copy)
 
- Public Member Functions inherited from ReferenceCount
int get_ref_count () const
 Returns the current reference count. More...
 
WeakReferenceListget_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 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...
 
void weak_ref (WeakPointerToVoid *ptv)
 Adds the indicated PointerToVoid as a weak reference to this object. More...
 
void weak_unref (WeakPointerToVoid *ptv)
 Removes the indicated PointerToVoid as a weak reference to this object. More...
 

Static Public Member Functions

static TypeHandle get_class_type ()
 
static void init_type ()
 
static void register_with_read_factory ()
 Factory method to generate a CollisionParabola 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(const string &data
 
- Static Public Member Functions inherited from TypedWritable
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. 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 ()
 

Additional Inherited Members

- Public Attributes inherited from CollisionSolid
virtual const CullTraverserData bool bounds_only const
 
virtual const CullTraverserDatadata
 
- Public Attributes inherited from TypedWritableReferenceCount
static BamReaderreader = NULL)
 
- Static Public Attributes inherited from TypedWritable
static TypedWritable *const Null = (TypedWritable*)0L
 

Detailed Description

This defines a parabolic arc, or subset of an arc, similar to the path of a projectile or falling object.

It is finite, having a specific beginning and end, but it is infinitely thin.

Think of it as a wire bending from point t1 to point t2 along the path of a pre-defined parabola.

Definition at line 35 of file collisionParabola.h.

Constructor & Destructor Documentation

◆ CollisionParabola() [1/2]

CollisionParabola::CollisionParabola ( )
inline

Creates an invalid parabola.

Definition at line 22 of file collisionParabola.I.

Referenced by CollisionParabola(), get_collision_origin(), and write_datagram().

◆ CollisionParabola() [2/2]

CollisionParabola::CollisionParabola ( const LParabola &  parabola,
PN_stdfloat  t1,
PN_stdfloat  t2 
)
inline

Creates a parabola with the endpoints between t1 and t2 in the parametric space of the parabola.

Definition at line 34 of file collisionParabola.I.

References CollisionParabola(), and set_parabola().

Member Function Documentation

◆ get_collision_origin()

LPoint3 CollisionParabola::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.

Implements CollisionSolid.

Definition at line 43 of file collisionParabola.cxx.

References CollisionParabola(), CollisionEntry::get_into(), and get_volume_pcollector().

◆ get_parabola()

const LParabola & CollisionParabola::get_parabola ( ) const
inline

◆ get_t1()

PN_stdfloat CollisionParabola::get_t1 ( ) const
inline

◆ get_t2()

PN_stdfloat CollisionParabola::get_t2 ( ) const
inline

◆ get_test_pcollector()

PStatCollector & CollisionParabola::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 CollisionSolid.

Definition at line 101 of file collisionParabola.cxx.

References GeomVertexWriter::add_data3(), GeomVertexWriter::add_data4(), get_t1(), get_t2(), LMatrix4f::invert_from(), LVecBase3f::length_squared(), register_with_read_factory(), and LMatrix4f::set_row().

Referenced by get_volume_pcollector().

◆ get_volume_pcollector()

PStatCollector & CollisionParabola::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 CollisionSolid.

Definition at line 89 of file collisionParabola.cxx.

References get_test_pcollector().

Referenced by get_collision_origin().

◆ register_with_read_factory()

void CollisionParabola::register_with_read_factory ( )
static

Factory method to generate a CollisionParabola object.

Definition at line 232 of file collisionParabola.cxx.

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

Referenced by get_test_pcollector().

◆ set_parabola()

void CollisionParabola::set_parabola ( const LParabola &  parabola)
inline

Replaces the parabola specified by this solid.

Definition at line 58 of file collisionParabola.I.

References get_parabola().

Referenced by CollisionParabola().

◆ set_t1()

void CollisionParabola::set_t1 ( PN_stdfloat  t1)
inline

Changes the starting point on the parabola.

Definition at line 80 of file collisionParabola.I.

References get_t1().

Referenced by get_parabola().

◆ set_t2()

void CollisionParabola::set_t2 ( PN_stdfloat  t2)
inline

Changes the ending point on the parabola.

Definition at line 102 of file collisionParabola.I.

References get_t2().

Referenced by get_t1().

◆ write_datagram()

void CollisionParabola::write_datagram ( BamWriter manager,
Datagram dg 
)
virtual

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

Reimplemented from CollisionSolid.

Definition at line 243 of file collisionParabola.cxx.

References Datagram::add_stdfloat(), CollisionParabola(), DatagramIterator::get_stdfloat(), and CollisionSolid::write_datagram().

Referenced by register_with_read_factory().


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