Panda3D
Public Member Functions | Static Public Member Functions

AuxSceneData Class Reference

This is a base class for a generic data structure that can be attached per-instance to the camera, to store per-instance data that must be preserved over multiple frames. More...

Inheritance diagram for AuxSceneData:
TypedReferenceCount TypedObject ReferenceCount MemoryBase MemoryBase

List of all members.

Public Member Functions

double getDuration ()
 Returns the minimum length in time, in seconds, to keep this AuxSceneData object around in the scene graph after the last time it was rendered.
double getExpirationTime ()
 Returns the frame_time at which this AuxSceneData object is currently scheduled to be removed from the scene graph.
double getLastRenderTime ()
 Returns the last time this object was used during traversal (according to set_last_render_time()).
int getRefCount ()
 Returns the current reference count.
TypeHandle getType ()
int getTypeIndex ()
 Returns the internal index number associated with this object's TypeHandle, a unique number for each different type.
bool isExactType (TypeHandle handle)
 Returns true if the current object is the indicated type exactly.
bool isOfType (TypeHandle handle)
 Returns true if the current object is or derives from the indicated type.
 output (ostream out)
 ref ()
 Explicitly increments the reference count.
 setDuration (double duration)
 Specifies the minimum length in time, in seconds, to keep this AuxSceneData object around in the scene graph after the last time it was rendered.
 setLastRenderTime (double render_time)
 Should be called with the current frame_time each time the AuxSceneData is used during traversal.
bool testRefCountIntegrity ()
 Does some easy checks to make sure that the reference count isn't completely bogus.
bool testRefCountNonzero ()
 Does some easy checks to make sure that the reference count isn't zero, or completely bogus.
bool unref ()
 Explicitly decrements the reference count.
 write (ostream out, int indent_level)
 write (ostream out)

Static Public Member Functions

static TypeHandle getClassType ()

Detailed Description

This is a base class for a generic data structure that can be attached per-instance to the camera, to store per-instance data that must be preserved over multiple frames.

In particular, this is used to implement the FadeLODNode, which must remember during traversal at what point it is in the fade, separately for each instance and for each camera.


Member Function Documentation

static TypeHandle getClassType ( ) [static]

Reimplemented from TypedReferenceCount.

double getDuration ( )

Returns the minimum length in time, in seconds, to keep this AuxSceneData object around in the scene graph after the last time it was rendered.

double getExpirationTime ( )

Returns the frame_time at which this AuxSceneData object is currently scheduled to be removed from the scene graph.

double getLastRenderTime ( )

Returns the last time this object was used during traversal (according to set_last_render_time()).

int getRefCount ( ) [inherited]

Returns the current reference count.

TypeHandle getType ( ) [inherited]

Reimplemented in AnimChannelBase.

int getTypeIndex ( ) [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().

bool isExactType ( TypeHandle  handle) [inherited]

Returns true if the current object is the indicated type exactly.

bool isOfType ( TypeHandle  handle) [inherited]

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

output ( ostream  out)
ref ( ) [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.

setDuration ( double  duration)

Specifies the minimum length in time, in seconds, to keep this AuxSceneData object around in the scene graph after the last time it was rendered.

setLastRenderTime ( double  render_time)

Should be called with the current frame_time each time the AuxSceneData is used during traversal.

bool testRefCountIntegrity ( ) [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.

bool testRefCountNonzero ( ) [inherited]

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

Returns true if ok, false otherwise.

bool unref ( ) [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, and GeomVertexFormat.

write ( ostream  out)
write ( ostream  out,
int  indent_level 
)
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