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CollisionHandlerQueue Class Reference

A special kind of CollisionHandler that does nothing except remember the CollisionEntries detected the last pass. More...

#include "collisionHandlerQueue.h"

Inheritance diagram for CollisionHandlerQueue:
CollisionHandler TypedReferenceCount TypedObject ReferenceCount MemoryBase MemoryBase

Public Member Functions

virtual void add_entry (CollisionEntry *entry)
 Called between a begin_group() . More...
 
virtual void begin_group ()
 Will be called by the CollisionTraverser before a new traversal is begun. More...
 
void clear_entries ()
 Removes all the entries from the queue. More...
 
virtual TypeHandle force_init_type ()
 
CollisionEntryget_entry (int n) const
 Returns the nth CollisionEntry detected last pass. More...
 
int get_num_entries () const
 Returns the number of CollisionEntries detected last pass. More...
 
virtual TypeHandle get_type () const
 
 MAKE_SEQ (get_entries, get_num_entries, get_entry)
 
void output (ostream &out) const
 
void sort_entries ()
 Sorts all the detected collisions front-to-back by from_intersection_point() so that those intersection points closest to the collider's origin (e.g., the center of the CollisionSphere, or the point_a of a CollisionSegment) appear first. More...
 
void write (ostream &out, int indent_level=0) const
 
- Public Member Functions inherited from CollisionHandler
virtual bool end_group ()
 Called by the CollisionTraverser at the completion of all collision detections for this traversal. More...
 
void set_root (const NodePath &root)
 Sets the root of the collision traversal. More...
 
bool wants_all_potential_collidees () const
 Returns true if handler wants to know about all solids that are within the collider's bounding volume. More...
 
- Public Member Functions inherited from TypedReferenceCount
 TypedReferenceCount (const TypedReferenceCount &copy)
 
void operator= (const TypedReferenceCount &copy)
 
- 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 Public Member Functions inherited from CollisionHandler
static TypeHandle get_class_type ()
 
static void init_type ()
 
- Static Public Member Functions inherited from TypedReferenceCount
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 ()
 

Detailed Description

A special kind of CollisionHandler that does nothing except remember the CollisionEntries detected the last pass.

This set of CollisionEntries may then be queried by the calling function. It's primarily useful when a simple intersection test is being made, e.g. for picking from the window.

Definition at line 32 of file collisionHandlerQueue.h.

Member Function Documentation

◆ add_entry()

void CollisionHandlerQueue::add_entry ( CollisionEntry entry)
virtual

Called between a begin_group() .

. end_group() sequence for each collision that is detected.

Reimplemented from CollisionHandler.

Definition at line 68 of file collisionHandlerQueue.cxx.

References sort_entries().

Referenced by begin_group().

◆ begin_group()

void CollisionHandlerQueue::begin_group ( )
virtual

Will be called by the CollisionTraverser before a new traversal is begun.

It instructs the handler to reset itself in preparation for a number of CollisionEntries to be sent.

Reimplemented from CollisionHandler.

Definition at line 57 of file collisionHandlerQueue.cxx.

References add_entry().

◆ clear_entries()

void CollisionHandlerQueue::clear_entries ( )

Removes all the entries from the queue.

Definition at line 117 of file collisionHandlerQueue.cxx.

References get_num_entries().

Referenced by sort_entries().

◆ get_entry()

CollisionEntry * CollisionHandlerQueue::get_entry ( int  n) const

Returns the nth CollisionEntry detected last pass.

Definition at line 138 of file collisionHandlerQueue.cxx.

Referenced by get_num_entries().

◆ get_num_entries()

int CollisionHandlerQueue::get_num_entries ( ) const

Returns the number of CollisionEntries detected last pass.

Definition at line 128 of file collisionHandlerQueue.cxx.

References get_entry().

Referenced by clear_entries().

◆ sort_entries()

void CollisionHandlerQueue::sort_entries ( )

Sorts all the detected collisions front-to-back by from_intersection_point() so that those intersection points closest to the collider's origin (e.g., the center of the CollisionSphere, or the point_a of a CollisionSegment) appear first.

Definition at line 83 of file collisionHandlerQueue.cxx.

References clear_entries().

Referenced by add_entry().


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